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UNITED STATES
SECURITIES AND EXCHANGE COMMISSION
WASHINGTON, D.C. 20549
FORM 10-K/A
(Amendment No. 1)
(MARK ONE)

x	ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934	
FOR THE FISCAL YEAR ENDED DECEMBER 31, 2013 
OR

¨	TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934	
FOR THE TRANSITION PERIOD FROM                     TO                     
COMMISSION FILE NUMBER 000-52008
LUNA INNOVATIONS INCORPORATED
(Exact name of Registrant as Specified in its Charter)

Delaware	 	54-1560050	
(State or Other Jurisdiction of Incorporation or Organization)	 	(I.R.S. Employer Identification Number)	
1 Riverside Circle, Suite 400
Roanoke, VA 24016
(Address of Principal Executive Offices)
(540) 769-8400
(Registrant’s Telephone Number, Including Area Code)
Securities registered pursuant to Section 12(b) of the Act:

Title of Each Class	 	Name of Each Exchange on which Registered	
Common Stock, par value $0.001 per share	 	The NASDAQ Stock Market LLC	
Securities registered pursuant to Section 12(g) of the Act: None
Indicate by check mark if the registrant is a well-known seasoned issuer, as defined in Rule 405 of the Securities Act.    Yes   ¨      No   x
Indicate by check mark if the registrant is not required to file reports pursuant to Section 13 or Section 15(d) of the Act.    Yes   ¨      No   x
Indicate by check mark whether the registrant (1) has filed all reports required to be filed by Section 13 or 15(d) of the Securities Exchange Act of 1934 during the preceding 12 months (or for such shorter period that the registrant was required to file such reports), and (2) has been subject to such filing requirements for the past 90 days.    Yes   x      No   ¨
Indicate by check mark whether the registrant has submitted electronically and posted on its corporate Web site, if any, every Interactive Data File required to be submitted and posted pursuant to Rule 405 of Regulation S-T during the preceding 12 months (or for such shorter period that the registrant was required to submit and post such files).    Yes   x      No   ¨
Indicate by check mark if disclosure of delinquent filers pursuant to Item 405 of Regulation S-K is not contained herein, and will not be contained, to the best of registrant’s knowledge, in definitive proxy or information statements incorporated by reference in Part III of this Form 10-K or any amendment to this Form 10-K.   x
Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer or a smaller reporting company. See the definitions of “large accelerated filer”, “accelerated filer” and “smaller reporting company” in Rule 12b-2 of the Exchange Act.

Large accelerated filer  ¨	  	Accelerated filer  ¨	
Non-accelerated filer  ¨ (Do not check if a smaller reporting company)	  	Smaller reporting company  x	
Indicate by check mark whether the registrant is a shell company (as defined in Rule 12b-2 of the Exchange Act).    Yes  ¨     No   x
The aggregate market value of the voting and non-voting common equity held by non-affiliates of the registrant on June 30, 2013, based upon the closing price of Common Stock on such date as reported by the NASDAQ Capital Market, was approximately $13.0 million.
Indicate by check mark whether the registrant has filed all documents and reports required to be filed by Section 12, 13 or 15(d) of the Securities Exchange Act of 1934 subsequent to the distribution of securities under a plan confirmed by a court.    Yes   x      No   ¨
Indicate the number of shares outstanding of each of the issuer’s classes of common stock, as of the latest practicable date: As of March 31, 2014 there were 14,731,652 shares of the registrant’s common stock outstanding.
DOCUMENTS INCORPORATED BY REFERENCE
Specified portions of the registrant’s Proxy Statement with respect to its 2014 Annual Meeting of stockholders, anticipated to be filed within 120 days after the end of its fiscal year ended December 31, 2013, are incorporated by reference into Part III of this Amendment No. 1 to the annual report on Form 10-K/A.

 	
EXPLANATORY NOTE

This Amendment No. 1 to the Registrant’s Annual Report on Form 10-K for the annual period ended December
31, 2013 (the “Report”), filed on April 10, 2014, is being filed solely to file Exhibits 21.1, 31.1, 31.2, 32.1 and 32.2, which were inadvertently omitted from the Report. This Amendment No. 1 sets forth the complete text of all items of Parts I, II, III and IV of the Report (other than adding footnote (29) to the Exhibit Index). No other changes have been made to the Report. Accordingly, this Amendment No. 1 does not reflect events occurring after the filing of the Report or modify or update any related or other disclosures.

In accordance with Rule 12b-15 under the Securities Exchange Act of 1934, as amended, this Amendment No. 1 includes updated certifications from the Registrant’s Chief Executive Officer and Chief Financial Officer.

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LUNA INNOVATIONS INCORPORATED
ANNUAL REPORT ON FORM 10-K
FOR THE YEAR ENDED DECEMBER 31, 2013
TABLE OF CONTENTS

 	 	 	
PART I	 	 	
Item 1.	Business	1	
Item 1A.	Risk Factors	12	
Item 1B.	Unresolved Staff Comments	26	
Item 2.	Properties	26	
Item 3.	Legal Proceedings	26	
Item 4.	Mine Safety Disclosure	26	
PART II	 	 	
Item 5.	Market for Registrant’s Common Equity, Related Stockholder Matters and Issuer Purchases of Equity Securities	27	
Item 6.	Selected Financial Data	28	
Item 7.	Management’s Discussion and Analysis of Financial Condition and Results of Operations	30	
Item 7A.	Quantitative and Qualitative Disclosures About Market Risk	41	
Item 8.	Financial Statements and Supplementary Data	42	
Item 9.	Changes in and Disagreements with Accountants on Accounting and Financial Disclosure	62	
Item 9A.	Controls and Procedures	62	
Item 9B.	Other Information	63	
PART III	 	 	
Item 10.	Directors, Executive Officers and Corporate Governance	64	
Item 11.	Executive Compensation	64	
Item 12.	Security Ownership of Certain Beneficial Owners and Management and Related Stockholder Matters	64	
Item 13.	Certain Relationships and Related Transactions, and Director Independence	64	
Item 14.	Principal Accounting Fees and Services	64	
PART IV	 	 	
Item 15.	Exhibits, Financial Statement Schedules	65	
SIGNATURES	71	

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CAUTIONARY NOTE REGARDING FORWARD LOOKING STATEMENTS
This Annual Report on Form 10-K, including the “Management’s Discussion and Analysis of Financial Condition and Results of Operation” section in Item 7 of this report, and other materials accompanying this Annual Report on Form 10-K contain forward-looking statements within the meaning of Section 21E of the Securities Exchange Act of 1934, as amended, and Section 27A of the Securities Act of 1933, as amended. All statements other than statements of historical facts are “forward-looking statements” for purposes of these provisions, including those relating to future events or our future financial performance. In some cases, you can identify these forward- looking statements by words such as “intends,” “will,” “plans,” “anticipates,” “expects,” “may,” “might,” “estimates,” “believes,” “should,” “projects,” “predicts,” “potential” or “continue,” or the negative of those words and other comparable words, and other words or terms of similar meaning in connection with any discussion of future operating or financial performance. Similarly, statements that describe our business strategy, goals, prospects, opportunities, outlook, objectives, plans or intentions are also forward-looking statements. These statements are only predictions and may relate to, but are not limited to, expectations of future operating results or financial performance, capital expenditures, introduction of new products, regulatory compliance, plans for growth and future operations, as well as assumptions relating to the foregoing.
These statements are based on current expectations and assumptions regarding future events and business performance and involve known and unknown risks, uncertainties and other factors that may cause actual events or results to be materially different from any future events or results expressed or implied by these statements. These factors include those set forth in the following discussion and within Item 1A “Risk Factors” of this Annual Report on Form 10-K and elsewhere within this report.
You should not place undue reliance on these forward-looking statements, which apply only as of the date of this Annual Report on Form 10-K. You should carefully review the risk factors described in other documents that we file from time to time with the U.S. Securities and Exchange Commission, (“SEC”). Except as required by applicable law, including the rules and regulations of the SEC, we do not plan to publicly update or revise any forward-looking statements, whether as a result of any new information, future events or otherwise, other than through the filing of periodic reports in accordance with the Securities Exchange Act of 1934, as amended.

PART I
 
ITEM 1.    BUSINESS
Company Overview and Business Model

We develop, manufacture and market fiber optic sensing and test & measurement products focused on bringing new and innovative technology solutions to measure, monitor, protect and improve critical processes in the aerospace, automotive, energy, composite, telecommunications, and defense industries. In addition, we provide applied research services, typically under research programs funded by the United States government, in areas of advance materials, sensing, and healthcare applications. Our business model is designed to accelerate the process of bringing new and innovative products to market. We use our in-house technical expertise across a range of technologies to perform applied research services for companies and government-funded projects. We continue to invest in product development and commercialization, which we anticipate will lead to increased product sales growth.
Our corporate growth strategy is focused on becoming a leading provider of fiber optic strain and temperature sensing solutions and standard test methods for composite, as well as non-composite materials, structures and systems.
We are organized into two main business segments, our Products and Licensing segment and our Technology Development segment. Our Products and Licensing segment develops, manufactures and markets our fiber optic sensing, as well as test and measurement products. Our Products and Licensing segment also includes the funded development of our fiber optic shape sensing technology for minimally invasive medical applications. On January 21, 2014, we sold the assets associated with our fiber optic shape sensing technology in the medical field to affiliates of Intuitive Surgical, Inc. (as referring either to these affiliates in such capacity as buyers or to Intuitive Surgical, Inc., "Intuitive"), as described more fully below. As part of this transaction, we entered into a revocable license agreement with Intuitive pursuant to which we have the right to use all of our transferred technology outside the field of medicine and in respect of our existing non-shape sensing products in certain non-robotic medical fields. We are continuing to develop and commercialize our fiber optic technology for strain and temperature sensing applications for the aerospace, automotive, and energy industries. Our Products and Licensing segment revenues represented approximately 46%, 43%, and 48% of our total revenues for the years ended December 31, 2011, 2012 and 2013, respectively.

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Our Technology Development segment performs applied research principally in the areas of sensing & instrumentation, advanced materials and health sciences. Our Technology Development segment revenues comprised approximately 54%, 57% and 52% of our total revenues for the years ended December 31, 2011, 2012 and 2013, respectively. Historically, this segment also included our secure computing and communications group (“SCC”), which focused on technologies for ensuring the integrity of integrated circuits used in defense systems. On March 1, 2013, we sold the assets associated with SCC to MacAulay-Brown, Inc. (“Mac-B”), another defense contractor. Most of the government funding for our Technology Development segment outside of SCC is derived from the Small Business Innovation Research (“SBIR”) program coordinated by the U.S. Small Business Administration, (“SBA”). Our SBIR research is focused on technological areas with commercial potential and we strive to commercialize any resulting scientific advancements. For the year ended December 31, 2013, approximately 44% of our revenues were generated under the SBIR program, compared to 54% in 2012 and 51% in 2011.
For the years ended December 31, 2011, 2012 and 2013, 64%, 67% and 54%, respectively, of our revenues were derived from the U.S. government.
Products and Licensing
In our Products and Licensing segment we have been successful in developing and marketing fiber optic test and measurement products which provide solutions primarily for the telecommunications industry. In 2011, we first introduced our ODiSI platform of products for distributed sensing of strain and temperature. Our key initiative for long term growth is to become a leading provider of fiber optic strain & temperature sensing systems and standard test methods based upon this product platform. Our Products and Licensing segment includes approximately 44 full-time employees. Our primary product lines and development services in this segment are described in more detail below.
Test & Measurement, Sensing, and Instrumentation Products
Test and Measurement Equipment for Fiber Optic Components and Sub-Assemblies
Our product lines in the test and measurement domain include our Optical Vector Analyzer (“OVA”), our Optical Backscatter Reflectometer (“OBR”), and the Phoenix family of tunable lasers.
Historically, our test and measurement products have primarily served the telecommunications industry, although most of our products have valuable applications in other fields. Our test and measurement products monitor the integrity of fiber optic network components and sub-assemblies. These products are designed for manufacturers and suppliers of optical components and sub-assemblies and allow them to reduce development, test and production costs and improve the quality of their products. Most manufacturers and suppliers of optical components and modules currently use a combination of different types of optical test equipment to identify and measure failures in optical networks, such as bad splices, bends, crimps and other reflective and non-reflective events that can cause defects and negatively impact product performance. Our optical test equipment products replace the need to employ multiple test products by addressing all stages of the end user’s product development lifecycle, including design verification, component qualification, assembly process verification and failure analysis. Our OVA platform allows manufacturers and suppliers of optical components and sub-assemblies to reduce development, test and production costs and time-to-market by replacing multiple, time consuming and expensive measurement platforms with a single, integrated and easy-to-use instrument.
Our OBR is a highly sensitive diagnostic device which has application in the telecommunications industry and flexibility to provide measurements in various other applications. Our OBR allows data and telecommunications companies and the service providers who maintain their own fiber optic networks to reduce test time and improve product quality. Our OBR provides the ability to inspect fiber networks with higher resolution and better sensitivity than is possible with other existing test products. Its user-friendly graphical user interface also makes the OBR product suitable for both research and manufacturing applications. The OBR gives end users a very high resolution view that is similar to an “X-Ray” into the inner workings of a fiber optic network. The OBR also has a feature that allows users to turn standard optical fiber into multiple sensors that could be used in a variety of temperature measurement and monitoring applications including power generation; civil structure monitoring; industrial process control; component-level heating in optical amplifiers; strain and load distribution measurements of aircraft harnesses; and temperature monitoring inside telecommunications cabinets and enclosures.
ODiSI Sensing Solution; Optical Distributed Sensor Interrogator
In 2011, we launched our new sensing platform called ODiSI. These products provide fully distributed strain or temperature measurements and deliver an extraordinary amount of data by using an optical fiber as a continuous sensor over up to 50 meters of surface. Compared to traditional sensing methods, such as strain gages, this technology provides greater insight into the performance, tolerances and failure mechanisms of structures and vehicles. We believe the technology can provide

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exceptional value to the aerospace, automotive, and energy industries providing solutions for composite, as well as non-composite materials, structures and systems.
We have significant expertise in distributed sensing systems, such as ODiSI, which are products composed of multiple sensors whose inputs are integrated through a fiber optic network and software. These products use fiber optic sensing technology with an innovative monitoring system that allows several thousand sensors to be networked along a single optical fiber.
Potential key applications and markets of our fiber optic sensing solutions include the airframe industry, integrated structural monitoring of civil structures and space applications. For example, a major airframe manufacturer has explored the use of our system during fatigue testing to measure strain through a network of sensors distributed throughout an aircraft. Our ODiSI platform also enables the direct monitoring of temperature. Potential markets include automotive manufacturing, automotive component manufacturing, motorsports, industrial process control and electrical system monitoring. For example, our network of distributed temperature sensors has been tested by a major manufacturer of electrical generators for the purpose of increasing operational efficiency and prolonging generator life.
Tunable Lasers
We have acquired the rights to manufacture a line of swept tunable lasers to allow us to compete more effectively in our existing fiber optic test and measurement as well as sensing markets. This laser is in production, and this technology is being integrated into current and new products to help us provide our customers with faster, more flexible and cost-effective test and measurement products. The laser has desirable properties in the quality of the laser light produced, the speed at which it can operate, the small size of the package, and the environmental conditions in which it can operate. We believe that these traits make it possible for us to move our fiber optic sensing capabilities out of the laboratory, and into more demanding environments such as aircraft structural health monitoring, automotive manufacturing, green energy, and industrial applications.
Sales & Marketing
We primarily market our fiber optic test and measurement products to telecommunications companies, defense agencies, government system integrators, researchers, original equipment manufactures, distributors, testing labs and strategic partners worldwide. We have a regional sales force that markets and sells our products through manufacturer representative organizations to customers in North America and through partner and distribution channels for other sales around the world. We are building a dedicated sales force for direct marketing of our distributed sensing products, with an initial focus on customers in the automotive, aerospace, and energy industries.
We believe that we provide a high level of support in developing and maintaining our long-term relationships with our customers. Customer service and support are provided through our offices and those of our partners that are located throughout the world.
Fiber Optic Shape Sensing Solutions for Robotic, Non-Robotic and Minimally Invasive Surgical Systems
On January 21, 2014, we sold our assets associated with the development of fiber optic shape sensing for the medical field to affiliates of Intuitive. However, we have a development and supply agreement with Hansen Medical, Inc. ("Hansen") under which we are to develop localization and shape sensing solutions for Hansen’s medical robotics system and under which we would supply fiber optic shape sensing systems to Hansen. Although the terms of our sale to Intuitive generally preclude us from pursuing fiber optic shape sensing in medical applications in the future, we are specifically permitted to continue to develop this technology and supply related products to Hansen. At this time, however, Hansen is not requesting us to perform any development work towards this solution. Our business relationship with Hansen is further described below under “Litigation and Agreements with Hansen Medical, Inc.”
In 2012, we entered into a development agreement with Philips Healthcare, acting through Philips Medical Systems Nederland BV (“Philips”). Under the development agreement, we conducted certain development work during 2012 and during 2013 in cooperation with Philips to advance our fiber-optic shape sensing technology towards commercialization in the non-robotic medical field. Under the development agreement, Philips agreed to pay us monthly on a time and materials basis, less a specified holdback amount, in accordance with corresponding milestones and estimated resource requirements. In addition, under the development agreement, Philips purchased specified prototype systems from us. Our agreement with Philips expired at the end of 2013 and was not renewed or extended. As a result of the sale of our shape sensing assets related to medical applications to Intuitive in January 2014, we do not expect to do any further work with Philips.
Technology Development

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We provide applied research for customers in our primary areas of focus, including sensing and materials such as nanomaterials, coatings, adhesives, composites and bio-engineered materials. Until our sale of SCC, we also provided applied research in the area of secure computing. We generally compete to win contracts in these areas on a fee-for-service basis. Our Technology Development segment has a successful track record of evaluating innovative technologies to address the needs of our customers.
We seek to maximize the benefits we derive from our contract research business, including revenue generation and identification of promising technologies for further development. We focus primarily on opportunities in which we develop intellectual property rights in areas that we believe have commercialization potential. We take a disciplined approach to contract research to try to ensure that the costs of any contract we undertake will be fully reimbursed. We believe that this model is cost-efficient and significantly reduces our development risk in that it enables us to defray the costs of riskier technology development with third-party funding.
As of December 31, 2013, our Technology Development segment was engaged in more than 70 active contracts, with typical terms ranging from six months to three years. These projects span a wide range of applications across our areas of focus.
Although we conduct our applied research on a fee-for-service basis for third parties, we seek to retain full or partial rights to the technologies and patents developed under those contracts and to continuously enlarge and strengthen our intellectual property portfolio. New technology that we develop may complement existing technologies and enable us to develop applications and products that were not previously possible. In addition, the technologies we develop may also be applicable to commercial markets beyond the scope of the applications originally contemplated in the contract research stage, and we endeavor to capture the value of those opportunities.
As of December 31, 2013, our Technology Development segment consisted of approximately 68 full time employees, of whom 30 hold advanced degrees, including 23 Ph.D. degrees. We also utilize the knowledge and experience of researchers employed through the academic institutions, corporations and government agencies with which we subcontract. Our Technology Development segment is organized into subgroups according to areas of technology, with each subgroup being managed by its own director who is responsible for its financial performance. In addition, we have in place disciplined processes designed to ensure quality control of proposal preparation, program reviews, pipeline reviews, revenue tracking and financial reporting.
Each year, U.S. government federal agencies and departments are required to set aside a portion of their grant awards for SBIR-qualified organizations. SBIR contracts include Phase I feasibility contracts of up to $150,000 and Phase II proof-of-concept contracts, which can be as high as $1,000,000. We have won three National Tibbetts Awards from the SBA for outstanding SBIR performance. We have also won research contracts outside the SBIR program from corporations and government entities. These contracts typically have a longer duration and higher value than SBIR grants. In the future, we will seek to derive a larger portion of our contract research revenues from contracts outside of the SBIR program.
Materials
We are actively developing a wide variety of materials. One of these is a new class of non-halogenated fire retardant additives developed as a possible replacement for brominated fire retardants, which are coming under increasing criticism due to health concerns. Our non-halogenated fire retardant additives are being evaluated for use in composites, such as fiber reinforced composites.
We have developed a range of coatings, including both hydrophobic and superoleophobic coatings. These coatings are being evaluated for use in a number of applications. Other coatings under development include anti-corrosion and damage-indicating coatings.
We are also working on a variety of bioengineered materials for homeostatic agents and wound healing. These materials must be approved by the FDA or similar foreign regulatory agencies before they can be marketed, which we do not expect to occur for at least several years, if at all.
Our nanomaterials activity is focused on fullerenes and tri-metal nitride endohedral fullerene (“Trimetasphere” ® ) materials. The Trimetasphere ®  nanomaterial is a carbon sphere with three metal atoms and an enclosed nitrogen atom. We have obtained an exclusive license from Virginia Tech to commercialize Trimetasphere ® nanomaterials under an issued U.S. patent and pending U.S. patent applications.
We are also researching other applications for nanomaterial-based drugs based on the anti-oxidative characteristics of fullerenes. These products are in the early stages of development, but if successful, could offer new market opportunities for us.

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In 2009, we acquired a patent portfolio from Tego Biosciences, Inc., including in- and out-licenses, generally for the use of carbon fullerene nanomolecules in the treatment of human health. We believe this acquisition strengthened our patent position in this area, but there can be no assurances that we will be able to obtain commercial success as a result of these patents and licenses.
Sensing
Our Technology Development segment also performs a significant amount of applied research towards developing new sensors. This includes sensors for the purpose of corrosion, temperature, strain, pressure, structural health and chemical detection. Much of the work is directed to harsh environments and uses optics. Examples include measuring temperature and neutron flux in nuclear reactors, pressure and temperature in gas turbines, and temperatures of cryogenic lines. The effort utilizes both discrete and distributed sensors. Our technology development work in this area is closely aligned with our Products and Licensing segment and is directed at advancing the technology and the development of new applications.
Intellectual Property
We seek patent protection on inventions that we consider important to the development of our business. We rely on a combination of patent, trademark, copyright and trade secret laws in the United States and other jurisdictions, as well as confidentiality procedures and contractual provisions to protect our proprietary technology and our brand. We control access to our proprietary technology and enter into confidentiality and invention assignment agreements with our employees and consultants and confidentiality agreements with other third parties.
Our success depends in part on our ability to develop patentable products and obtain, maintain and enforce patent and trade secret protection for our products, as well as to successfully defend these patents against third-party challenges both in the United States and in other countries. We will only be able to protect our technologies from unauthorized use by third parties to the extent that we own or have licensed valid and enforceable patents or trade secrets that cover them. Furthermore, the degree of future protection of our proprietary rights is uncertain because we may not be able to obtain patent protection on some or all of our technology and because legal means afford only limited protection and may not adequately protect our rights or permit us to gain or keep our competitive advantage.
Currently, we own or license approximately 70 U.S. and international patents and approximately 69 U.S. and international patent applications, and we intend to file, or request that our licensors file, additional patent applications for patents covering our products. Our issued patents generally have terms that are scheduled to expire between 2015 and 2031. However, patents may not be issued for any pending or future pending patent applications owned by or licensed to us. Claims allowed under any issued patent or future issued patent owned or licensed by us may not be valid or sufficiently broad to protect our technologies. Any issued patents owned by or licensed to us now or in the future may be challenged, invalidated or circumvented, and, in addition, the rights under such patents may not provide us with competitive advantages. In addition, competitors may design around our technology or develop competing technologies. Intellectual property rights may also be unavailable or limited in some foreign countries, which could make it easier for competitors to capture or increase their market share with respect to related technologies.

A discussion of our material patents and patent applications is set forth below.

Siemens Patent
We have licensed a U.S. patent and related patents in Canada, Switzerland, Germany, Great Britain, Italy, Netherlands and France from Siemens AG concerning methods of preparing fullerene derivatives for use. We use these methods in our nanotechnology area to attach certain materials to carbon fullerenes. The U.S. patent expires in January 2016. The Canadian patent expires in 2015 and the European patents expire in 2014.

NASA Patents
We have licensed, on a non-exclusive basis, four U.S. patents and related patents in Japan, Canada, Germany, France, Great Britain and Belgium from the National Aeronautics and Space Administration, an agency of the U.S. government (“NASA”), which patents concern the measurement of strain in optical fiber using Bragg gratings and Rayleigh scatter and the measurement of the properties of fiber-optic communications devices. These patents expire between February 2017 and September 2020.

VTIP Patents

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We have licensed, on an exclusive basis, two U.S. patents from Virginia Tech Intellectual Properties, Inc. (“VTIP”) to commercialize Trimetasphere® nanomaterials for all fields of human endeavor. These patents expire in December 2019 and December 2022.

Coherent Patents
We have licensed, on a non-exclusive basis, several U.S. patents and other intellectual property rights owned or controlled by Coherent, Inc., related to the manufacturing, using, importing, selling and offering for sale of Coherent’s “Iolon” brand of swept tunable lasers, which we market under our “Phoenix” brand of lasers. These U.S. patents expire between 2020 and 2025.

Shape Sensing Patents

As a part of our sale of assets associated with our fiber optic shape sensing technology in the medical field to Intuitive, we transferred our related patents to Intuitive. Also as a part of this transaction, we entered into a revocable license agreement with Intuitive pursuant to which we have the right to use all of our transferred technology outside the field of medicine and in respect of our existing non-shape sensing products in certain non-robotic medical fields. Two U.S. patents that we now license back from Intuitive cover the use of optical frequency domain reflectometry, or OFDR, and multiple, closely spaced Bragg gratings for shape sensing, and the use of the inherent scatter as a strain sensor for shape sensing. These two patents expire in July 2025. We also have a license back from Intuitive for a patent application that covers certain refinements to the measurements covered in the first two patents, which are necessary in order to achieve the necessary accuracies for medical and other applications. This patent application was filed in the United States, the European Patent Office, China, India, Russia, Brazil, Japan and Indonesia. These patents and patent applications can support other nonmedical applications of our fiber optic shape sensing technology.
Corporate History and Chapter 11 Reorganization
We were incorporated in the Commonwealth of Virginia in 1990 and reincorporated in the State of Delaware in April 2003. We completed our initial public offering in June 2006. Our executive offices are located at 1 Riverside Circle, Suite 400, Roanoke, Virginia 24016 and our main telephone number is (540) 769-8400.
On July 17, 2009, we filed a voluntary petition for relief in order to reorganize under Chapter 11 of the United States Bankruptcy Code, including a proposed plan of reorganization, which we refer to in this report as the Reorganization Plan, with the United States Bankruptcy Court for the Western District of Virginia. On January 12, 2010, the Bankruptcy Court approved the Reorganization Plan and we emerged from bankruptcy on that date.
Litigation and Agreements with Hansen Medical, Inc.
In June 2007, Hansen, a company for which we had conducted certain research and performed certain services, filed a lawsuit against us for using allegedly misappropriated trade secrets from Hansen in connection with our work with Intuitive or otherwise. On April 21, 2009, a jury found in favor of Hansen and awarded a verdict of $36.3 million against us. As a result of this jury verdict, we filed for Chapter 11 reorganization in July 2009.
On December 11, 2009, we and our wholly owned subsidiary Luna Technologies, Inc. entered into a settlement agreement with Hansen to settle all claims arising out of the litigation. On January 12, 2010, as part of our Reorganization Plan, we entered into a series of agreements with Hansen and Intuitive that were contemplated by the settlement agreement. Under our license agreement with Hansen (the “Hansen License”), we granted Hansen (i) a co-exclusive (with Intuitive), royalty-free, fully paid, perpetual and irrevocable license to our fiber optic shape sensing/localization technology within the medical robotics field. The license can only be sublicensed by Hansen in connection with Hansen products, except that Hansen can grant full sublicenses to third parties for single degree of freedom robotic medical devices; (ii) an exclusive (and fully sublicenseable) royalty-free, fully paid, perpetual and irrevocable license to our fiber optic shape sensing/localization technology for non-robotic medical devices within the orthopedics, vascular, and endoluminal fields; and (iii) a co-exclusive (with us) royalty-free, fully paid, perpetual and irrevocable license to our fiber optic shape sensing/localization technology for non-robotic medical devices in other medical fields (including colonoscopies but not including devices described in clause (ii) above). In 2011, Hansen entered into certain agreements with Philips Medical Systems (and/or its affiliates) under which Hansen sublicensed its non-robotic medical rights to our fiber optic shape sensing/localization technology.
In connection with the settlement agreement, we also entered into a development and supply agreement with Hansen. The agreement provides that we will perform product development services with respect to fiber optic shape sensing at Hansen’s request and provide our shape sensing products to Hansen. Revenues earned for product development will be determined in a manner consistent with our normal contract development services and will be payable monthly to us. The agreement also sets

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forth certain terms under which we would supply fiber optic components to Hansen. In May 2011, we amended this development and supply agreement with Hansen in order to update the specifications and estimated budget amounts for certain development milestones and provide for additional development milestones and related budget estimates and specifications to be achieved. The amendment also provides for a payment structure whereby we share a specified percentage of the development expenses otherwise payable in connection with certain of the development milestones, up to a certain cumulative maximum, and changes the mechanism for calculating amounts that Hansen may hold back from being paid to us while such expenses are being shared by the parties. Finally, the amendment adjusted the commercial transfer pricing mechanism for our supply of fiber optic components to Hansen. At this time, Hansen is not requesting us to perform any development work under this development and supply agreement. Our sale of assets to Intuitive was made expressly subject to the development and supply agreement with Hansen and the Hansen License.
Material Agreements
Sale of Assets to Intuitive Surgical
On January 17, 2014, we entered into an Asset Purchase Agreement with Intuitive (the “Asset Purchase Agreement”). Under the Asset Purchase Agreement, effective as of 12:01 a.m. on January 21, 2014, we closed on the sale to Intuitive of substantially all of our assets related to our medical shape sensing business, including all of the patents and patent applications used or useful for our fiber optical shape sensing and localization technology, for $6 million in cash at closing and a second $6 million in cash to be paid no later than 90 days after closing, plus up to $8 million upon the accomplishment by Intuitive of certain technical specifications (the “Technical Specifications Payment”) and up to $10 million in potential future royalties (altogether, the “Transaction”). We had been engaged since 2007 in a development project for Intuitive developing a fiber optic-based shape sensing and position tracking system to be integrated into Intuitive’s products. Also as a part of the Transaction, Intuitive has hired certain of our employees, many of whom were historically engaged in this development project.

The second $6 million to be paid within 90 days has been placed in escrow. The Technical Specifications Payment is tied to the achievement of certain technical specifications that were previously established for the development project between us and Intuitive. If these technical specifications are not achieved but our fiber optical shape sensing and localization technology is nevertheless included in an Intuitive medical system that receives Food and Drug Administration approval as the system’s only localization solution, then Intuitive shall pay us $6 million upon such approval. The royalties will be paid at a rate of $10,000 per commercially-sold medical robotic system that includes our fiber optical shape sensing and localization technology. The foregoing deferred and potential payments are subject to set off against any liabilities we may have to Intuitive for any breach of our representations or obligations under the Asset Purchase Agreement.

The Asset Purchase Agreement contains representations and warranties, covenants and indemnification provisions common to transactions of this nature, except that our indemnification obligations are only limited in time until no further payments are due from Intuitive. Any disputes between the parties will be handled by mediation and arbitration in Chicago, Illinois. All of the transfers of technology contemplated in the Transaction have been made subject to our existing licenses and related obligations to Hansen and Philips.

Also, in connection with the Transaction, we and Intuitive entered into a License Agreement of the same date under which we received a license back to all of our transferred technology outside the field of medicine and in respect of our existing non-shape sensing products in certain non-robotic medical fields. The license back to us outside the medical field is exclusive to us except that Intuitive retained certain non-sublicensable rights for itself. This license back to us is revocable if we were, after notice and certain time periods, (i) to challenge the validity or enforceability of the transferred patents and patent applications, (ii) to commercialize our fiber optical shape sensing and localization technology in the field of medicine (except to perform on a development and supply project for Hansen), (iii) to violate our obligations related to our ability to sublicense in the field of medicine or (iv) to violate our confidentiality obligations in a manner that advantages a competitor in the field of medicine and not cure such violation. As a part of the Transaction, we retained assets and rights necessary to perform on our development and supply project for Hansen if that project is re-started.
Also, as a part of the Transaction, for a period of 15 years after closing, we agreed to exit and not develop or commercialize our fiber optical shape sensing and localization technology in the field of medicine (except for Hansen as described above). For a period of 10 years after closing, Intuitive has agreed not to use any of the assets being acquired in the Transaction, including the key employees being hired, to compete with us outside the field of medicine for shape, strain and/or temperature sensing in the aerospace, automotive, and energy markets and for strain sensing in the civil structural monitoring and composite material markets.
Prior Agreement with Intuitive

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Prior to our recent sale of our shape sensing assets related to medical applications to Intuitive, we were party to an intellectual property licensing, development and supply agreement with Intuitve, which we originally entered into in June 2007. Under this multi-year agreement, we were to develop and supply a fiber optic-based shape sensing and position tracking system for integration into Intuitive’s future products.
Under the agreement, Intuitive agreed to pay us an up-front license fee, development fees payable in quarterly installments for the first 18 months of the agreement, and certain other fees, subject to specified termination rights by Intuitive and other rights of repayment or reduction. There were also minimum purchase requirements by Intuitive, which were subject to our successful completion of the development criteria and certain other terms and conditions.
In January 2010, in connection with our settlement with Hansen, and related emergence from Chapter 11 bankruptcy, we amended our agreement with Intuitive in order to make it consistent with our January 2010 license agreement with Hansen and to make certain other changes to provide, among other things, additional development of enhancements to the Intuitive product platform. The amendment also provided that Intuitive could request us to perform additional development work for a period of 10 years ending January 2020 and that this additional development work, if requested, would be paid by Intuitive on a time and materials basis. Under the amendment, Intuitive received a limited credit against a future portion of this development work and against the transfer pricing for the shape-sensing products supplied by us to Intuitive. The amendment also eliminated certain future fees that would have otherwise been payable by Intuitive and also eliminated all of Intuitive’s future minimum purchase requirements. Intuitive continued to be obligated to purchase its reasonable commercial requirements of the shape-sensing products from us, subject to Intuitive’s right to purchase optical fiber or sensors from other suppliers. The amendment also provided that the exclusive license granted by us to Intuitive in the medical robotics field was modified to allow for the co-exclusive license granted to Intuitive and Hansen and any restrictions or prohibitions on us to develop and manufacture products for Hansen were eliminated.

The agreement was further amended to provide for the development work to be conducted in 2010 and provide a budget for this work. The agreement was amended again in respect of development work to be conducted in 2011, setting certain milestones for us to achieve during 2011, establishing the amounts to be paid by Intuitive to us for this development work and providing that, if we successfully completed the milestones by a certain date, any remaining credit in favor of Intuitive would be eliminated. The agreement was amended again in respect of development work to be conducted in 2012, similarly setting certain milestones to be achieved by us during 2012, establishing the amounts to be paid by Intuitive to us for this development work and confirming that no further credit remained. In June 2013, we again amended our agreement with Intuitive, to cover development work during the period of 2013 through 2015. This amendment established certain milestones for us to achieve during this period, as well as the amounts to be paid by Intuitive for development work during this period.
As amended, the term of our agreement with Intuitive extended to January 2020 and was terminable by either party for cause upon notice and opportunity to cure.
As part of our agreement with Intuitive, we granted Intuitive a co-exclusive (with Hansen), royalty-free, fully paid, perpetual and irrevocable license to our fiber optic shape sensing/localization technology within the medical robotics field. The license can only be sublicensed by Intuitive in connection with Intuitive products and Intuitive and Hansen have the right to enforce the licensed intellectual property within the medical robotics field. Because of the nature of this perpetual license, the license does not provide for a term or termination provisions. Intuitive has granted to us a perpetual, royalty-free license to any intellectual property solely or jointly invented by Intuitive on our development project for all fields outside of medical robotics, which is exclusive to the extent of any patents and patent applications included in such intellectual property.
Although after our sale of assets to Intuitive we no longer have a development and supply relationship with Intuitive and Intuitive no longer has any payment obligations to us, this agreement remains in place.
Philips Healthcare
In 2012, we entered into a development agreement with Philips . Under the development agreement, we conducted certain development work during 2012 in cooperation with Philips on a project to advance our fiber-optic shape sensing technology towards commercialization in the non-robotic medical field. We amended this development agreement to provide for certain development work to be performed in 2013. Under the development agreement, Philips agreed to pay us monthly on a time and materials basis, less a specified holdback amount, in accordance with corresponding milestones and estimated resource requirements. In addition, under the development agreement, Philips purchased specified prototype systems from us. The term of this development agreement continued until December 31, 2013. The agreement expired on December 31, 2013 and was not

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renewed. In light of the sale of our shape sensing assets related in the medical field to Intuitive, we will no longer conduct any more work for Philips.

Virginia Tech
Our nanomaterials activity is focused on Trimetasphere® materials. The Trimetasphere® nanomaterial is a carbon sphere with three metal atoms and a nitrogen atom enclosed. We have obtained an exclusive license from VTIP to commercialize Trimetasphere nanomaterials under two U.S. patents for all fields of human endeavor. The term of this license ends upon the last expiration date of the underlying patents, which is December 2022. The license provides for certain royalties to be paid as a percentage of our net sales, certain percentages of amounts received from any of our sublicensees and certain milestone payments based on product development phases. We paid VTIP a total of approximately $3,000 in royalties in respect of 2012 and 2011 under the license. We reimburse VTIP for patent costs incurred under the license. VTIP may terminate the license for cause. We may terminate the license at any time for any reason on 60 days notice.
We primarily utilize the VTIP license in our ongoing research into the potential use of Trimetaspheres to improve the safety of contrast agents commonly utilized in magnetic resonance imaging (“MRI”) procedures. We believe that contrast agents utilizing our Trimetasphere nanomaterials may be able to provide a higher image contrast than existing contrast agents but with a lower risk of toxicity. Medical contrast agents for human use, such as our Trimetasphere nanomaterials, must be approved by the FDA or similar foreign regulatory agencies before they can be marketed, which we do not expect to occur for at least several years, if at all. As described below under “Government Regulation,” this approval process can involve significant time and expense and may delay or prevent our products from reaching the market.
Coherent
In December 2006, we entered into an asset transfer and license agreement with Coherent. Under the agreement, we acquired the rights to manufacture Coherent’s “Iolon” brand of swept tunable lasers as well as certain manufacturing equipment and inventory previously used by Coherent to manufacture the lasers. We continue to enhance, produce, and market these lasers under our “Phoenix” brand. Under this agreement, Coherent granted non-exclusive licenses to us for certain U.S. patents and other intellectual property rights owned or controlled by Coherent for making, having made, using, importing, selling and offering for sale the lasers. The term of this agreement is 10 years, but the patent licenses become fully paid and perpetual if we fulfill our royalty obligations during this 10-year period and the license to the other intellectual property rights is perpetual. These U.S. patents expire between 2020 and 2025. As consideration, we agreed to pay Coherent a total of $1.3 million over a period of two years and royalty payments on net sales of products sold by us that incorporate the lasers or that are manufactured using the intellectual property covered by the licenses. We paid Coherent a minimum royalty of $100,000 for 2011 and approximately $60,000 in royalties based on net sales for 2012. We also agreed to sell Coherent a limited number of lasers each year. The agreement is terminable by either party for cause after notice and an opportunity to cure.
The Phoenix laser is a miniaturized, external-cavity laser offering high performance in a compact footprint and is applicable to a range of fiber optic test and measurement, instrumentation, and sensing applications. These products employ frequency-tuned lasers to measure various aspects of the transmission properties of telecommunications fiber optic components and systems. Lasers are also used in fiber optic sensing applications such as distributed strain and temperature mapping, and distributed measurement of shape. We currently use these lasers within our ODiSI platform of products, our fiber optic shape sensing products and certain of our backscatter reflectometer products, and we also sell variations of the Phoenix laser as standalone products. Under our agreements related to our sale of assets to Intuitive, we have certain obligations to supply Intuitive with these lasers and Intuitive has certain rights to require us to transfer and assign this Coherent license to Intuitive, in which case Intuitive would be similarly required to supply us with lasers.
NASA
We have licensed, on a non-exclusive basis, certain patents from NASA under two license agreements. These patents concern the measurement of strain in optical fiber using Bragg gratings and Rayleigh scatter, and also the measurement of the properties of fiber-optic communications devices. Under the license agreements, we pay NASA certain royalties based on a percentage of net sales of products covered by the patents. We incur a royalty obligation to NASA based upon a specified percentage of the revenue earned on each product sold utilizing these patents subject to combined minimum royalties of $220,000 per year under the license agreements. The term of the license agreements continues until the expiration of the last licensed patent, which is September 2020. These license agreements may be terminated by us on 90 days notice. Either party may terminate the license agreements for cause upon certain conditions.

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Competition
We compete for government, university and corporate research contracts relating to a broad range of technologies. Competition for contract research is intense and the industry has few barriers to entry. We compete against a number of in-house research and development departments of major corporations, as well as a number of small, limited-service contract research providers and companies backed by large venture capital firms. The contract research industry continues to experience consolidation, which has resulted in greater competition for clients. Increased competition might lead to price and other forms of competition that could harm our operating results. We compete for contract research on the basis of a number of factors, including reliability, past performance, expertise and experience in specific areas, scope of service offerings, technological capabilities and price.
We also compete, or will compete, with a variety of companies in several different product markets. The products that we have developed or are currently developing will compete with other technologically innovative products, as well as products incorporating conventional materials and technologies. We expect that we will compete with companies in a wide range of industries, including semiconductors, electronics, biotechnology, textiles, alternative energy, military, defense, healthcare, telecommunications, industrial measurement, security applications and consumer electronics. Although there can be no assurance that we will continue to do so, we believe that we compete favorably in these areas because our products leverage advanced technologies to offer superior performance. If we are unable to effectively compete in these areas in the future, we could lose business to our competitors, which could harm our operating results.
Government Regulation
Qualification for Small Business Innovation Research Grants
SBIR is a highly competitive program that encourages small businesses to explore their technological potential and provides them with incentives to commercialize their technologies by funding research that might otherwise be prohibitively expensive or risky for companies like us. As noted above, we presently derive a significant portion of our revenue from this program, but we must continue to qualify for the SBIR program in order to be eligible to receive future SBIR awards. The eligibility requirements are:
 	 	
•	Ownership. The company must be at least 51 percent owned and controlled by U.S. citizens or permanent resident aliens, or owned by an entity that is itself at least 51 percent owned and controlled by U.S. citizens or permanent resident aliens; and	
 	 	
•	Size. The company, including its affiliates, cannot have more than 500 employees.	
These requirements are set forth in the SBA’s regulations and are interpreted by the SBA’s Office of Hearings and Appeals. In determining whether we satisfy the 51% ownership requirement, agreements to merge, stock options, convertible debt and other similar instruments are given “present effect” by the SBA as though the underlying security were actually issued unless the exercisability or conversion of such securities is speculative, remote or beyond the control of the security holder. We therefore believe our outstanding options and warrants held by eligible individuals may be counted as outstanding equity for purposes of meeting the 51% equity ownership requirement. We believe that we are in compliance with the SBA ownership requirements.
In addition, to be eligible for SBIR contracts, the number of our employees, including those of any entities that are considered to be affiliated with us, cannot exceed 500. As of December 31, 2013, we, including all of our divisions, had 138 full- and part-time employees. In determining whether we have 500 or fewer employees, the SBA may count the number of employees of entities that are large stockholders who are “affiliated” or have the power to control us. In determining whether firms are affiliated, the SBA evaluates factors such as stock ownership and common management, but it ultimately may make its determination based on the totality of the circumstances. Eligibility protests can be raised to the SBA by a competitor or by the awarding contracting agency. We understand that the SBA is in the process of performing a formal size determination in connection with some of our SBIR contracts. We cannot provide assurance that the SBA will interpret its regulations in our favor. Regardless of the outcome of the SBA’s pending determination, if we grow larger, and if our ownership becomes more diversified, we may no longer qualify for the SBIR program, and we may be required to seek alternative sources and partnerships to fund some of our research and development costs. Additional information regarding these risks may be found below in “Risk Factors.”
FDA Regulation of Products
Some of the potential products that we are developing may be subject to regulation under the Food, Drug, and Cosmetic (FDC) Act. In particular, any Trimetasphere ®   nanomaterial-based MRI contrast agent would be considered a drug, and our ultrasound diagnostic devices for measuring certain medical conditions will be considered medical devices, under the FDC Act. Both the statutes and regulations promulgated under the FDC Act govern, among other things, the testing, manufacturing,

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safety efficacy, labeling, storage, record keeping, advertising and other promotional practices involving the regulation of drug and devices. Compliance with the FDC Act may add time and expense to product development, and there can be no assurance that any of our products will be successfully developed and approved for marketing by the FDA.
Medical Devices
Our existing and future health care products are regulated by the FDA as medical devices. The nature of the requirements applicable to devices depends on their classification by the FDA. A device we develop would be automatically classified as a Class III device, requiring pre-market approval, unless the device is substantially equivalent to an existing device that has been classified in Class I or Class II or to a pre-1976 device that has not yet been classified. Class I or Class II devices require registration through the 510(k) exemption. If we were unable to demonstrate such substantial equivalence and unable to obtain reclassification, we would be required to undertake the costly and time-consuming approval process, comparable to that for new drugs, of conducting preclinical studies, obtaining an investigational device exemption to conduct clinical tests, filing a pre-market approval application and obtaining FDA approval.
Environmental, Health and Safety Regulation
Our facilities and current and proposed activities involve the use of a broad range of materials that are considered hazardous under applicable laws and regulations. Accordingly, we are subject to a number of domestic and foreign laws and regulations and other requirements relating to employee health and safety, protection of the environment, product labeling and product take back. Regulated activities include the storage, use, transportation and disposal of, and exposure to, hazardous or potentially hazardous materials and wastes. Our current and proposed activities also include potential exposure to physical hazards associated with work environment and equipment. We could incur costs, fines, civil and criminal penalties, personal injury and third-party property damage claims, or we could be required to incur substantial investigation or remediation costs, if we were to violate or become liable under environmental, health and safety laws and regulations or requirements. Liability under environmental, health and safety laws can be joint and several and without regard to fault. There can be no assurance that violations of environmental, health and safety laws will not occur in the future as a result of the inability to obtain permits in a timely manner, human error, equipment failure or other causes. Environmental, health and safety laws could also become more stringent over time, imposing greater compliance costs and increasing risks and penalties associated with violations, which could harm our business. Further, violations of present and future environmental, health and safety laws could restrict our ability to expand facilities and pursue certain technologies, as well as require us to acquire costly equipment or to incur potentially significant costs to comply with environmental, health and safety regulations and other requirements.
We have made, and will continue to make, expenditures to comply with current and future environmental, health and safety laws. We anticipate that we could incur additional capital and operating costs in the future to comply with existing environmental, health and safety laws and new requirements arising from new or amended statutes and regulations. In addition, because the applicable regulatory agencies have not yet promulgated final standards for some existing environmental, health and safety programs, we cannot at this time reasonably estimate the cost for compliance with these additional requirements. The amount of any such compliance costs could be material. We cannot predict the impact that future regulations will impose upon our business.
Employees
As of December 31, 2013, we had approximately 138 total employees of whom approximately 126 were full-time employees, and 42 of whom held advanced degrees, including approximately 29 Ph.D. degrees. None of our employees are covered by a collective bargaining agreement, and we consider our relationship with our employees to be good.
Backlog
We have historically had a backlog of contracts for which work has been scheduled, but for which a specified portion of work has not yet been completed. The approximate value of our backlog was $8.7 million at December 31, 2013 of which substantially all was from our Technology Development segment. The approximate value of our backlog was $13.6 million at December 31, 2012, of which substantially all was from our Technology Development segment, including $3.3 million from our SCC group.
We define backlog as the dollar amount of obligations payable to us under negotiated contracts upon completion of a specified portion of work that has not yet been completed, exclusive of revenues previously recognized for work already performed under these contracts, if any. Total backlog includes funded backlog, which is the amount for which money has been directly authorized by the U.S. Congress or for which a purchase order has been received from a commercial customer, and unfunded backlog, which represents firm orders for which funding has not yet been appropriated. Unfunded backlog was $1.0 million as of December 31, 2013 and $0.8 million as of December 31, 2012. Indefinite delivery and quantity contracts and

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unexercised options are not reported in total backlog. Our backlog is subject to delays or program cancellations that may be beyond our control.
Research, Development and Engineering
We incur research, development and engineering expenses that are not related to our contract performance. These expenses were $2.3 million, $2.5 million and $2.7 million for the years ended December 31, 2011, 2012 and 2013, respectively. In addition, during these years, we spent $14.7 million, $12.3 million and $10.7 million, respectively, on customer-sponsored research activities, which amounts are reimbursed as part of our performance of customer contracts.
Operating Segments and Geographic Areas
For information with respect to our operating segments and geographic markets, see Note 13 to our Consolidated Financial Statements in Part II, Item 8 of this Annual Report on Form 10-K.
Website Access to Reports
Our website address is www.lunainc.com. We make available, free of charge under “SEC Filings” on the Investor Relations portion of our website, access to our annual report on Form 10-K, our quarterly reports on Form 10-Q and our current reports on Form 8-K, as well as amendments to those reports filed or furnished pursuant to Section 13(a) or 15(d) of the Securities Exchange Act of 1934, as amended, as soon as reasonably practicable after such material is electronically filed with or furnished to the SEC. Information appearing on our website is not incorporated by reference in and is not a part of this annual report. A copy of this annual report, as well as our other periodic and current reports, may be obtained from the SEC’s public reference room at 100 F Street, N.E., Washington, D.C. 20549. Information on the operation of the Public Reference Room can be obtained by calling the SEC at 1-800-SEC-0330. The SEC maintains an Internet site that contains reports, proxy and information statements, and other information regarding our filings at www.sec.gov.

ITEM 1A.    ITEM 1A.
You should carefully consider the risks described below before deciding whether to invest in our common stock. The risks described below are not the only ones we face. Additional risks not presently known to us or that we currently believe are immaterial may also impair our business operations and financial results. If any of the following risks actually occurs, our business, financial condition or results of operations could be adversely affected. In such case, the trading price of our common stock could decline and you could lose all or part of your investment. Our filings with the Securities and Exchange Commission also contain forward-looking statements that involve risks or uncertainties. Our actual results could differ materially from those anticipated or contemplated by these forward-looking statements as a result of a number of factors, including the risks we face described below, as well as other variables that could affect our operating results. Past financial performance should not be considered to be a reliable indicator of future performance, and investors should not use historical trends to anticipate results or trends in future periods.
RISKS RELATING TO OUR BUSINESS GENERALLY
If there are substantial sales of our common stock, or the perception that such sales may occur, our stock price could decline.
If any of our stockholders were to sell substantial amounts of our common stock, the market price of our common stock may decline, which might make it more difficult for us to sell equity or equity-related securities in the future at a time and price that we deem appropriate. Substantial sales of our common stock, or the perception that such sales may occur, may have a material adverse effect on the prevailing market price of our common stock.
Pursuant to an Investor Rights Agreement, we recently filed a Form S-3 registration statement registering the potential resale of an aggregate of up to approximately 6.3 million shares of our common stock by our then two largest stockholders, Carilion and Dr. Kent Murphy . This registration statement has been declared effective by the Securities and Exchange Commission, and Dr. Murphy has sold substantially all of his approximately 2.8 million shares included in the registration statement. As of the date of this report, Carilion continues to hold its approximately 3.5 million shares covered by the registration statement (including approximately 1.3 million shares issuable to Carilion upon conversion of shares of Series A Convertible Preferred Stock Carilion holds). Because the registration statement is effective, these shares may be sold freely in the public market. Any sales of these shares, or the perception that future sales of shares by Carilion these or any of our other significant stockholders may occur, may have a material adverse effect on the market price of our stock. Any such continuing

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material adverse effect on the market price of our stock could impair our ability to comply with NASDAQ’s continuing listing standards in respect of our minimum stock price, as further described below.
Our technology is subject to a license from Intuitive, which is revocable in certain circumstances. Without this license, we cannot continue to market, manufacture or sell our fiber-optic products.
As a part of the sale of our assets to Intuitive, we entered into a license agreement with Intuitive pursuant to which we received rights to use all of our transferred technology outside the field of medicine and in respect of our existing non-shape sensing products in certain non-robotic medical fields. This license back to us is revocable if after notice and certain time periods, we were to (i) challenge the validity or enforceability of the transferred patents and patent applications, (ii) commercialize our fiber optical shape sensing and localization technology in the field of medicine (except to perform on a development and supply project for Hansen), (iii) violate our obligations related our its ability to sublicense in the field of medicine or (iv) violate our confidentiality obligations in a manner that advantages a competitor in the field of medicine and not cure such violation. Maintaining this license is necessary for us to conduct our fiber-optic products business, both for our telecom products and our ODiSI sensing products. If this license were to be revoked by Intuitive, we would no longer be able to market, manufacture or sell these products which would severely limit our ability to continue operations.
Our narrowed scope and focus may make it more difficult for us to achieve or maintain operating profitability.
Through the recent sales of SCC to Mac-B and of our fiber optic shape sensing technology to Intuitive, we have reduced our overall size and narrowed our focus to one key growth objective: to become the leading provider of fiber optic sensing systems and standard test methods for composite materials. There can be no guarantee that we will be successful in pursuing this objective. Although we anticipate realizing cost savings as a result of the sale of assets to Mac-B and Intuitive, we will continue to incur significant operating expenses associated with our public company infrastructure. Accordingly, we will need to significantly increase the revenue we generate from our remaining operations in order to achieve or maintain operating profitability, and there can be no guarantee that we will be able to do so.
Our failure to attract, train and retain skilled employees or members of our senior management and to obtain necessary security clearances for such persons or maintain a facility security clearance would adversely affect our business and operating results.
The availability of highly trained and skilled technical and professional personnel is critical to our future growth and profitability. Competition for scientists, engineers, technicians and professional personnel is intense and our competitors aggressively recruit key employees. In the past, we have experienced difficulties in recruiting and hiring these personnel as a result of the tight labor market in certain fields. Any difficulty in hiring or retaining qualified employees, combined with our growth strategy and future needs for additional experienced personnel, particularly in highly specialized areas such as nanomaterial manufacturing and fiber optic sensing technologies, may make it more difficult to meet all of our needs for these employees in a timely manner. Although we intend to continue to devote significant resources to recruit, train and retain qualified employees, we may not be able to attract and retain these employees, especially in technical fields in which the supply of experienced qualified candidates is limited, or at the senior management level. Any failure to do so would have an adverse effect on our business. Any loss of key personnel could have a material adverse effect on our ability to meet key operational objectives, such as timely and effective project milestones and product introductions, which in turn could adversely affect our business, results of operations and financial condition. We also have contractual obligations to adequately staff certain development projects, and a loss of key personnel could lead to our inability to meet these obligations, which in turn could expose us to claims for significant damages under any such agreement.
We provide certain services to the U.S. government that require us to maintain a facility security clearance and for certain of our employees and our board chairman to hold security clearances. In general, the failure for necessary persons to obtain or retain sufficient security clearances, any loss by us of a facility security clearance or any public reprimand related to security matters could result in a U.S. government customer terminating an existing contract or choosing not to renew a contract or prevent us from bidding on or winning certain new government contracts.
In addition, our future success depends in a large part upon the continued service of key members of our senior management team. We do not maintain any key-person life insurance policies on our officers. The loss of any members of our management team or other key personnel could seriously harm our business.

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We rely and will continue to rely on contracts and grants awarded under the SBIR program for a significant portion of our revenues. A finding by the SBA that we no longer qualify to receive SBIR awards could adversely affect our business.
We compete as a small business for some of our government contracts. Our revenues derived from the SBIR program account for a significant portion of our consolidated total revenues, and contract research, including SBIR contracts, will remain a significant portion of our consolidated total revenues for the foreseeable future.
We may not continue to qualify to participate in the SBIR program or to receive new SBIR awards from federal agencies. In order to qualify for SBIR contracts and grants, we must meet certain size and ownership eligibility criteria. These eligibility criteria are applied as of the time of the award of a contract or grant. A company can be declared ineligible for a contract award as a result of a size challenge filed with the SBA by a competitor or a federal agency.
In order to be eligible for SBIR contracts and grants, under current SBA rules we must be more than 50% owned and controlled by individuals who are U.S. citizens or permanent resident aliens, and/or other small business concerns (each of which is more than 50% owned and controlled by individuals who are U.S. citizens or permanent resident aliens) or certain qualified investment companies. In the event our institutional ownership significantly increases, either because of increased buying by institutions or selling by individuals, including any sales of securities by Dr. Kent Murphy under the Form S-3 registration statement described above, we could lose eligibility for new SBIR contracts and grants.
Also, in order to be eligible for SBIR contracts and grants, the number of our employees, including those of any entities that are considered to be affiliated with us, cannot exceed 500. As of December 31, 2013, we had approximately 138 full-time employees. In determining whether we are affiliated with any other entity, the SBA may analyze whether another entity controls or has the power to control us. Carilion Clinic, or Carilion, is our largest institutional stockholder. The SBA has, since early 2011, been in the process of performing a formal size determination that focused on whether or not Carilion is or was our affiliate. Although we do not believe that Carilion has or had the power to control our company, we cannot assure you that the SBA will interpret its regulations in our favor on this question. If the SBA were to make a determination that we are or were affiliated with Carilion, we would exceed the size limitations, as Carilion has over 500 employees. In that case, we would lose eligibility for new SBIR contracts and grants and other awards that are set aside for small businesses based on the criterion of number of employees, and the relevant government agency would have the discretion to suspend performance on existing SBIR grants. The loss of our eligibility to receive SBIR awards would have a material adverse impact on our revenues, cash flows and our ability to fund our growth.
     
Moreover, if we grow our business, it is foreseeable that we will eventually exceed the SBIR size limitations, in which case we may be required to seek alternative sources of revenues or capital.
As a provider of contract research to the U.S. government, we are subject to federal rules, regulations, audits and investigations, the violation or failure of which could adversely affect our business.
We must comply with and are affected by laws and regulations relating to the award, administration and performance of U.S. government contracts. Government contract laws and regulations affect how we do business with our government customers and, in some instances, impose added costs on our business. A violation of a specific law or regulation could result in the imposition of fines and penalties, termination of our contracts or debarment from bidding on contracts. In some instances, these laws and regulations impose terms or rights that are more favorable to the government than those typically available to commercial parties in negotiated transactions. For example, the U.S. government may terminate any of our government contracts and, in general, subcontracts, at their convenience, as well as for default based on performance.
In addition, U.S. government agencies, including the Defense Contract Audit Agency and the Department of Labor, routinely audit and investigate government contractors. These agencies review a contractor’s performance under its contracts, cost structure and compliance with applicable laws, regulations and standards. The U.S. government also may review the adequacy of, and a contractor’s compliance with, its internal control systems and policies, including the contractor’s purchasing, property, estimating, compensation and management information systems. Any costs found to be improperly allocated to a specific contract will not be reimbursed, while such costs already reimbursed must be refunded. If an audit uncovers improper or illegal activities, we may be subject to civil and criminal penalties and administrative sanctions, including termination of contracts, forfeiture of profits, suspension of payments, fines and suspension or prohibition from doing business with the U.S. government. In addition, our reputation could suffer serious harm if allegations of impropriety were made against us.
In addition to the risk of government audits and investigations, U.S. government contracts and grants impose requirements on contractors and grantees relating to ethics and business practices, which carry civil and criminal penalties

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including monetary fines, assessments, loss of the ability to do business with the U.S. government and certain other criminal penalties.
We may also be prohibited from commercially selling certain products that we develop under our Technology Development segment or related products based on the same core technologies if the U.S. government determines that the commercial availability of those products could pose a risk to national security. For example, certain of our wireless technologies have been classified as secret by the U.S. government and as a result we cannot sell them commercially. Any of these determinations would limit our ability to generate product sales and license revenues.
A decline in government research contract awards or government funding for existing or future government research contracts, including SBIR contracts, could adversely affect our revenues, cash flows and ability to fund our growth.
Technology development revenue, which consists primarily of government-funded research, accounted for approximately 54%, 57% and 52% of our consolidated total revenues for the years ended December 31, 2011, 2012 and 2013, respectively. As a result, we are vulnerable to adverse changes in our revenues and cash flows if a significant number of our research contracts and subcontracts were to be simultaneously delayed or canceled for budgetary, performance or other reasons. For example, the U.S. government may cancel these contracts at any time without cause and without penalty or may change its requirements, programs or contract budget, any of which could reduce our revenues and cash flows from U.S. government research contracts. Our revenues and cash flows from U.S. government research contracts and subcontracts could also be reduced by declines or other changes in U.S. defense, homeland security and other federal agency budgets. In addition, we compete as a small business for some of these contracts, and in order to maintain our eligibility to compete as a small business, we, together with any affiliates, must continue to meet size and revenue limitations established by the U.S. government.
Our contract research customer base includes government agencies, corporations and academic institutions. Our customers are not obligated to extend their agreements with us and may elect not to do so. Also, our customers’ priorities regarding funding for certain projects may change and funding resources may no longer be available at previous levels.
 
In addition, the Budget Control Act commits the U.S. Government to reduce the federal deficit by $1.2 trillion over ten years through a combination of automatic, across-the-board spending cuts and caps on discretionary spending. This “sequestration” under the Budget Control Act, which is split equally between defense and non-defense programs, went into effect on March 1, 2013. The appropriate resolution reflecting a budget deal for fiscal years 2014 and 2015 reduces but does not eliminate these sequestration cuts. Any spending cuts required by “sequestration” could have a material adverse effect on our technology development revenue and, consequently, our results of operations. While the exact manner in which this “sequestration” may impact our business remains unclear, funding for programs in which we participate could be reduced, delayed or canceled. Our ability to obtain new contract awards also could be negatively affected.
In addition to contract cancellations and changes in agency budgets, our future financial results may be adversely affected by curtailment of or restrictions on the U.S. government’s use of contract research providers, including curtailment due to government budget reductions and related fiscal matters or any legislation or resolution limiting the number or amount of awards we may receive. These or other factors could cause U.S. defense and other federal agencies to conduct research internally rather than through commercial research organizations or direct awards to other organizations, to reduce their overall contract research requirements or to exercise their rights to terminate contracts. Alternatively, the U.S. government may discontinue the SBIR program or its funding altogether. Also, SBIR regulations permit increased competition for SBIR awards from companies that may not have previously been eligible, such as those backed by venture capital operating companies, hedge funds and private equity firms. Any of these developments could limit our ability to obtain new contract awards and adversely affect our revenues, cash flows and ability to fund our growth.
We depend on third-party vendors for specialized components in our manufacturing operations, making us vulnerable to supply shortages and price fluctuations that could harm our business.
We primarily rely on third-party vendors for the manufacture of the specialized components used in our products. The highly specialized nature of our supply requirements poses risks that we may not be able to locate additional sources of the specialized components required in our business. For example, there are few manufacturers who produce the special lasers used in our optical test equipment. Our reliance on these vendors subjects us to a number of risks that could negatively affect our ability to manufacture our products and harm our business, including interruption of supply. Although we are now manufacturing tunable lasers in low-rate initial production, we expect our overall reliance on third-party vendors to continue. Any significant delay or interruption in the supply of components, or our inability to obtain substitute components or materials

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from alternate sources at acceptable prices and in a timely manner could impair our ability to meet the demand of our customers and could harm our business.
The results of our operations could be adversely affected by economic and political conditions and the effects of these conditions on our customers’ businesses and levels of business activity.
Global economic and political conditions affect our customers’ businesses and the markets they serve. A severe or prolonged economic downturn or a negative or uncertain political climate could adversely affect our customers’ financial conditions and the timing or levels of business activity of our customers and the industries we serve. This may reduce the demand for our products or depress pricing for our products and have a material adverse effect on our results of operations. Changes in global economic conditions could also shift demand to products or services for which we do not have competitive advantages, and this could negatively affect the amount of business we are able to obtain. In addition, if we are unable to successfully anticipate changing economic and political conditions, we may be unable to effectively plan for and respond to those changes, and our business could be negatively affected as a result.
There was a rapid softening of the economy and tightening of the financial markets in 2008 and 2009. This slowing of the economy has reduced the financial capacity of some of our customers and, to the extent that such economic conditions continue in certain industries, it could continue to affect our potential customers, thereby slowing spending on the products and services we provide. The outlook for the economy in 2014 and beyond remains uncertain, and until there is a sustained economic recovery our revenues and results of operations could be negatively impacted.
We have a history of losses, and because our strategy for expansion may be costly to implement, we may experience continuing losses and may never achieve or maintain profitability or positive cash flow.
We realized a consolidated net loss from continuing operations of $4.1 million for the year ended December 31, 2013 and net loss attributable to common stockholders of $1.5 million, $1.5 million and $0.9 million for each of the years ended December 31, 2011, 2012 and 2013, respectively. We expect to continue to incur significant expenses as we pursue our strategic initiatives, including increased expenses for research and development, sales and marketing and manufacturing. We may also grow our business in part through acquisitions of additional companies and complementary technologies which could cause us to incur greater than anticipated transaction expenses, amortization or write-offs of intangible assets and other acquisition-related expenses. As a result, we expect to incur net losses for the foreseeable future, and these losses could be substantial. At a certain level, continued net losses could impair our ability to comply with NASDAQ continued listing standards, as described further below.
Our ability to generate additional revenues and to become profitable will depend on our ability to develop and commercialize innovative technologies, expand our contract research capabilities and sell the products that result from those development initiatives. We are unable to predict when or if we will be able to achieve profitability. If our revenues do not increase, or if our expenses increase at a greater rate than our revenues, we will continue to experience losses. Even if we do achieve profitability, we may not be able to sustain or increase our profitability on a quarterly or annual basis.
We have obtained capital by borrowing money under a credit facility and we might require additional capital to support and expand our business; our credit facility has various loan covenants with which we must comply and if we need any such additional capital or we fail to comply with our loan covenants, this capital might not be available or only available on unfavorable terms.
We intend to continue to make investments to support our business growth, including developing new products, enhancing our existing products, obtaining important regulatory approvals, enhancing our operating infrastructure, completing our development activities and building our commercial scale manufacturing facilities. To the extent that we are unable to become or remain profitable and to finance our activities from our continuing operations, we may require additional funds to support these initiatives and to grow our business.
If we are successful in raising additional funds through issuances of equity or convertible debt securities, our existing stockholders could suffer significant dilution, including as the result of the issuance of warrants in connection with the financing, and any new equity securities we issue could have rights, preferences and privileges superior to those of our existing common stock. Furthermore, such financings may jeopardize our ability to apply for SBIR grants or qualify for SBIR contracts or grants, and our dependence on SBIR grants may restrict our ability to raise additional outside capital. If we raise additional

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funds through debt financings, these financings may involve significant cash payment obligations and covenants that restrict our ability to operate our business and make distributions to our stockholders.
We maintain a credit facility with Silicon Valley Bank, or SVB, which requires us to observe certain financial and operational covenants, including maintenance of a specified cash balance, protection and registration of intellectual property rights, and certain customary negative covenants, as well as other customary events of default. If any event of default occurs SVB may declare due immediately all borrowings under our credit facility and foreclose on the collateral. Furthermore, an event of default would result in an increase in the interest rate on any amounts outstanding.
 
If we are unable to borrow under the SVB credit facility or otherwise obtain adequate financing or financing terms satisfactory to us when we require it, our ability to continue to support our business growth and to respond to business challenges could be significantly limited.
RISKS RELATING TO OUR OPERATIONS AND BUSINESS STRATEGY
If we cannot successfully transition our revenue mix from contract research revenues to product sales and license revenues, we may not be able to fully execute our business model or grow our business.
Our business model and future growth depend on our ability to transition to a revenue mix that contains significantly larger product sales and revenues from the provision of services or from licensing. Product sales and these revenues potentially offer greater scalability than contract research revenues. Our current plan is to increase our sales of commercial products, our licensing revenue and our provision of non-research services to customers so as to represent a larger percentage of our total revenues. If we are unable to develop and grow our product sales and revenues from the provision of services or from licensing to augment our contract research revenues, however, our ability to execute our business model or grow our business could suffer. There can be no assurance that we will be able to achieve increased revenues in this manner.
If we are unable to manage growth effectively, our revenue and net loss could be adversely affected.
While historically we have developed and commercialized only a few products at a time, we plan to grow our revenues by developing and commercializing multiple products concurrently across many industries, technologies and markets. Our ability to expand our business by developing and commercializing multiple products simultaneously requires that we manage a diverse range of projects and expand our personnel resources. Our inability to do any of these could prevent us from successfully implementing our growth strategy, causing our revenues and profits to be adversely affected.
To advance the development of multiple promising potential products concurrently, we need to manage effectively the logistics of maintaining the requisite corporate, operational, administrative and financing functions for each of these product opportunities. Potentially expanding our operations into new geographic areas and relying on multiple facilities to develop and manufacture different products concurrently pose additional challenges. We have little experience in managing these functions simultaneously for multiple projects in development or in building new infrastructure and integrating the operations of various facilities. If we cannot manage this process successfully, we may experience operating difficulties, additional expenditures and limited revenue growth.
We may need to expand our personnel resources to grow our business effectively. We believe that sustained growth at a higher rate will place a strain on our management as well as on our other human resources. To manage this growth, we must continue to attract and retain qualified management, professional, scientific and technical and operating personnel. If we are unable to recruit a sufficient number of qualified personnel, we may be unable to staff and manage projects adequately, which in turn may slow the rate of growth of our contract research revenue or our product development efforts.
We may not be successful in identifying market needs for new technologies and developing new products to meet those needs.
The success of our business model depends on our ability to correctly identify market needs for new technologies. We intend to identify new market needs, but we may not always have success in doing so in part because our contract research largely centers on identification and development of unproven technologies, often for new or emerging markets. Furthermore, we must identify the most promising technologies from a sizable pool of projects. If our commercialization strategy process fails to identify projects with commercial potential or if management does not ensure that such projects advance to the commercialization stage, we may not successfully commercialize new products and grow our revenues.

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Our growth strategy requires that we not only identify new technologies that meet market needs, but that we also develop successful commercial products that address those needs. We face several challenges in developing successful new products. Many of our existing products and those currently under development are technologically innovative and require significant and lengthy product development efforts. These efforts include planning, designing, developing and testing at the technological, product and manufacturing-process levels. These activities require us to make significant investments. Although there are many potential applications for our technologies, our resource constraints require us to focus on specific products and to forgo other opportunities. We expect that one or more of the potential products we choose to develop will not be technologically feasible or will not achieve commercial acceptance, and we cannot predict which, if any, of our products we will successfully develop or commercialize. The technologies we research and develop are new and steadily changing and advancing. The products that are derived from these technologies may not be applicable or compatible with the state of technology or demands in existing markets. Our existing products and technologies may become uncompetitive or obsolete if our competitors adapt more quickly than we do to new technologies and changes in customers’ requirements. Furthermore, we may not be able to identify if and when new markets will open for our products given that future applications of any given product may not be readily determinable, and we cannot reasonably estimate the size of any markets that may develop. If we are not able to successfully develop new products, we may be unable to increase our product revenues.
We face and will face substantial competition in several different markets that may adversely affect our results of operations.
We face and will face substantial competition from a variety of companies in several different markets. Our competitors in contract research include, but are not limited to, companies such as General Dynamics Corporation, Lockheed Martin Corporation, SAIC, Inc. and SRA International, Inc. In the instrumentation and test and measurement products market, our competitors include, but are not limited to, large companies such as Agilent Technologies, Inc., Analog Devices, Inc., Freescale Semiconductor, Inc., JDS Uniphase Corp., Robert Bosch GmbH and Silicon Sensing, as well as emerging companies.
The products that we have developed or are currently developing will compete with other technologically innovative products as well as products incorporating conventional materials and technologies. We expect that our products will face competition in a wide range of industries, including telecommunications, industrial instrumentation, healthcare, military and security applications.
Many of our competitors have longer operating histories, greater name recognition, larger customer bases and significantly greater financial, sales and marketing, manufacturing, distribution, technical and other resources than we do. These competitors may be able to adapt more quickly to new or emerging technologies and changes in customer requirements. In addition, current and potential competitors have established or may establish financial or strategic relationships among themselves or with existing or potential customers or other third parties. Accordingly, new competitors or alliances among competitors could emerge and rapidly acquire significant market share. We cannot assure you that we will be able to compete successfully against current or new competitors, in which case our revenues may fail to increase or may decline.
We have limited experience manufacturing our products in commercial quantities in a cost-effective manner, which could adversely impact our business.
In the past, we produced most of our products on a custom order basis rather than pursuant to large contracts that require production on a large volume basis. Accordingly, other than the commercial manufacture of products by our Products and Licensing segment, we have no experience manufacturing products in large volumes. Because our experience in large scale manufacturing is limited, we may encounter unforeseen difficulties in our efforts to manufacture other products or materials in commercial quantities or have to rely on third-party contractors over which we may not have direct control to manufacture our products. We may also encounter difficulties and delays in manufacturing our products for any of the following reasons:
 	 	
•	we may need to expand our manufacturing operations, and our production processes may have to change to accommodate this growth;	
 	 	
•	to increase our manufacturing output significantly, we will have to attract and retain qualified employees, who are in short supply, for the assembly and testing operations;	
 	 	
•	we might have to sub-contract to outside manufacturers which might limit our control of costs and processes; and	
 	 	
•	our manufacturing operations may have to comply with government or customer-mandated specifications.	
If we are unable to keep up with demand for our products, our revenues could be impaired, market acceptance of our products could be adversely affected and our customers might instead purchase our competitors’ products. Moreover, failure to develop and maintain a U.S. market for goods developed with U.S. government-licensed technology may result in the

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cancellation of the relevant U.S. government licenses. Our inability to manufacture our products successfully would have a material adverse effect on our revenues.
Even if we are able to manufacture our products on a commercial scale, the cost of manufacturing our products may be higher than we expect. If the costs associated with manufacturing are not significantly less than the prices at which we can sell our products, we may not be able to operate at a profit.
Our nanotechnology-enabled products are new and may be, or may be perceived as being, harmful to human health or the environment.
While we believe that none of our current products contain chemicals known by us to be hazardous or subject to environmental regulation, it is possible that our current or future products, particularly carbon-based nanomaterials, may become subject to environmental or other regulation. We intend to develop and sell carbon-based nanomaterials as well as nanotechnology-enabled products, which are products that include nanomaterials as a component to enhance those products’ performance. Nanomaterials and nanotechnology-enabled products have a limited historical safety record. Because of their size or shape or because they may contain harmful elements, such as gadolinium and other rare-earth metals, our products could pose a safety risk to human health or the environment. These characteristics may also cause countries to adopt regulations in the future prohibiting or limiting the manufacture, distribution or use of nanomaterials or nanotechnology-enabled products. Such regulations may inhibit our ability to sell some products containing those materials and thereby harm our business or impair our ability to develop commercially viable products.
The subject of nanotechnology has received negative publicity and has aroused public debate. Government authorities could, for social or other purposes, prohibit or regulate the use of nanotechnology. Ethical and other concerns about nanotechnology could adversely affect acceptance of our potential products or lead to government regulation of nanotechnology-enabled products.
We face risks associated with our international business.
We currently conduct business internationally and we might considerably expand our international activities in the future. Our international business operations are subject to a variety of risks associated with conducting business internationally, including:
 	 	
•	having to comply with U.S. export control regulations and policies that restrict our ability to communicate with non-U.S. employees and supply foreign affiliates and customers;	
 	 	
•	changes in or interpretations of foreign regulations that may adversely affect our ability to sell our products, perform services or repatriate profits to the United States;	
 	 	
•	the imposition of tariffs;	
 	 	
•	hyperinflation or economic or political instability in foreign countries;	
 	 	
•	imposition of limitations on, or increase of withholding and other taxes on remittances and other payments by foreign subsidiaries or joint ventures;	
 	 	
•	conducting business in places where business practices and customs are unfamiliar and unknown;	
 	 	
•	the imposition of restrictive trade policies;	
 	 	
•	the imposition of inconsistent laws or regulations;	
 	 	
•	the imposition or increase of investment and other restrictions or requirements by foreign governments;	
 	 	
•	uncertainties relating to foreign laws and legal proceedings;	
 	 	
•	having to comply with a variety of U.S. laws, including the Foreign Corrupt Practices Act; and	
 	 	
•	having to comply with licensing requirements.	
 
We do not know the impact that these regulatory, geopolitical and other factors may have on our international business in the future.

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We could be negatively affected by a security breach, either through cyber attack, cyber intrusion or other significant disruption of our IT networks and related systems.
We face the risk, as does any company, of a security breach, whether through cyber attack or cyber intrusion over the Internet, malware, computer viruses, attachments to e-mails, persons inside our organization or persons with access to systems inside our organization, or other significant disruption of our IT networks and related systems. The risk of a security breach or disruption, particularly through cyber attack or cyber intrusion, including by computer hackers, foreign governments and cyber terrorists, has increased as the number, intensity and sophistication of attempted attacks and intrusions from around the world have increased.
As a technology company, and particularly as a government contractor, we may face a heightened risk of a security breach or disruption from threats to gain unauthorized access to our proprietary, confidential or classified information on our IT networks and related systems. These types of information and IT networks and related systems are critical to the operation of our business and essential to our ability to perform day-to-day operations, and, in some cases, are critical to the operations of certain of our customers. In addition, as certain of our technological capabilities become widely known, it is possible that we may be subjected to cyber attack or cyber intrusion as third parties seek to gain improper access to information regarding these capabilities and cyber attacks or cyber intrusion could compromise our confidential information or our IT networks and systems generally, as it is not practical as a business matter to isolate all of our confidential information and trade secrets from email and internet access. There can be no assurance that our security efforts and measures will be effective or that attempted security breaches or disruptions would not be successful or damaging.
A security breach or other significant disruption involving these types of information and IT networks and related systems could disrupt the proper functioning of these networks and systems and therefore our operations, compromise our confidential information and trade secrets, or damage our reputation among our customers and the public generally. Any of these developments could have a negative impact on our results of operations, financial condition and cash flows.
 
RISKS RELATING TO OUR REGULATORY ENVIRONMENT
Our operations are subject to domestic and foreign laws, regulations and restrictions, and noncompliance with these laws, regulations and restrictions could expose us to fines, penalties, suspension or debarment, which could have a material adverse effect on our profitability and overall financial position.
Our operations, particularly our international sales, subject us to numerous U.S. and foreign laws and regulations, including, without limitation, regulations relating to imports, exports (including the Export Administration Regulations and the International Traffic in Arms Regulations), technology transfer restrictions, anti-boycott provisions, economic sanctions and the Foreign Corrupt Practices Act. The number of our various emerging technologies, the development of many of which has been funded by the Department of Defense, presents us with many regulatory challenges. Failure by us or our sales representatives or consultants to comply with these laws and regulations could result in administrative, civil, or criminal liabilities and could result in suspension of our export privileges, which could have a material adverse effect on our business. Changes in regulation or political environment may affect our ability to conduct business in foreign markets including investment, procurement and repatriation of earnings.
Our healthcare and medical products are and may continue to be subject to a lengthy and uncertain domestic regulatory approval process. If we do not obtain and maintain the necessary domestic regulatory approvals or clearances, we will not be able to market and sell our products for clinical use in the United States. Complying with applicable regulations is an expensive and time-consuming process and any failure to fully comply with such regulations could subject us to enforcement actions.
Certain of our current and potential products could require regulatory clearances or approvals prior to commercialization. For example, any nanomaterial-based MRI contrast agent is likely to be considered a drug under the Federal Food, Drug and Cosmetic Act, or the FDC Act. Drugs and some medical devices are subject to rigorous preclinical testing and other approval requirements by the U.S. Food and Drug Administration, or the FDA, pursuant to the FDC Act, and regulations under the FDC Act, as well as by similar health authorities in foreign countries.
Various federal statutes and regulations also govern or influence the testing, manufacturing, safety, labeling, packaging, advertising, storage, registration, listing and recordkeeping related to marketing of pharmaceuticals. The process of obtaining these clearances or approvals and the subsequent compliance with appropriate federal statutes and regulations require the expenditure of substantial resources, which we may not be able to obtain on favorable terms, if at all. We cannot be certain that any required FDA or other regulatory approval will be granted or, if granted, will not be withdrawn. Our failure to obtain the

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necessary regulatory approvals, or our failure to obtain them in a timely manner, will prevent or delay our commercialization of new products and our business or our stock price could be adversely affected as a result.
Our commercially distributed medical device products will be subject to various post-market regulatory requirements, compliance with which will be expensive and time-consuming.
We will also become subject to inspection and marketing surveillance by the FDA to determine our compliance with regulatory requirements. If the FDA determines that we have failed to comply, it can institute a wide variety of enforcement actions ranging from a regulatory letter to a public warning letter to more severe civil and criminal sanctions. Our failure to comply with applicable requirements could lead to an enforcement action that may have an adverse effect on our financial condition and results of operations.
If our manufacturing facilities do not meet Federal, state or foreign country manufacturing standards, we may be required to temporarily cease all or part of our manufacturing operations, which would result in product delivery delays and negatively impact revenue.
Our manufacturing facilities are subject to periodic inspection by regulatory authorities and our operations will continue to be regulated by the FDA for compliance with Good Manufacturing Practice requirements contained in the quality systems regulations. We are also required to comply with International Organization for Standardization, or ISO, quality system standards in order to produce products for sale in Europe. If we fail to continue to comply with Good Manufacturing Practice requirements or ISO standards, we may be required to cease all or part of our operations until we comply with these regulations. Obtaining and maintaining such compliance is difficult and costly. We cannot be certain that our facilities will be found to comply with Good Manufacturing Practice requirements or ISO standards in future inspections and audits by regulatory authorities. In addition, if we cannot maintain or establish manufacturing facilities or operations that comply with such standards or do not meet the expectations of our customers, we may not be able to realize certain economic opportunities in our current or future supply arrangements.
Medical products are subject to various international regulatory processes and approval requirements. If we do not obtain and maintain the necessary international regulatory approvals for any such potential products, we may not be able to market and sell our medical products in foreign countries.
To be able to market and sell medical products in other countries, we must obtain regulatory approvals and comply with the regulations of those countries. These regulations, including the requirements for approvals and the time required for regulatory review, vary from country to country. Obtaining and maintaining foreign regulatory approvals are expensive, and we cannot be certain that we will have the resources to be able to pursue such approvals or whether we would receive regulatory approvals in any foreign country in which we plan to market our products. For example, the European Union requires that manufacturers of medical products obtain the right to affix the CE mark to their products before selling them in member countries of the European Union, which we have not yet obtained and may never obtain. If we fail to obtain regulatory approval in any foreign country in which we plan to market our products, our ability to generate revenue will be harmed.
 
We are subject to additional significant foreign and domestic government regulations, including environmental and health and safety regulations, and failure to comply with these regulations could harm our business.
Our facilities and current and proposed activities involve the use of a broad range of materials that are considered hazardous under applicable laws and regulations. Accordingly, we are subject to a number of foreign, federal, state and local laws and regulations relating to health and safety, protection of the environment and the storage, use, disposal of, and exposure to, hazardous materials and wastes. We could incur costs, fines and civil and criminal penalties, personal injury and third party property damage claims, or could be required to incur substantial investigation or remediation costs, if we were to violate or become liable under environmental, health and safety laws. Moreover, a failure to comply with environmental laws could result in fines and the revocation of environmental permits, which could prevent us from conducting our business. Liability under environmental laws can be joint and several and without regard to fault. There can be no assurance that violations of environmental and health and safety laws will not occur in the future as a result of the inability to obtain permits, human error, equipment failure or other causes. Environmental laws could become more stringent over time, imposing greater compliance costs and increasing risks and penalties associated with violations, which could harm our business. Accordingly, violations of present and future environmental laws could restrict our ability to expand facilities, pursue certain technologies, and could require us to acquire costly equipment or incur potentially significant costs to comply with environmental regulations.
Compliance with foreign, federal, state and local environmental laws and regulations represents a small part of our present budget. If we fail to comply with any such laws or regulations, however, a government entity may levy a fine on us or

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require us to take costly measures to ensure compliance. Any such fine or expenditure may adversely affect our development. We cannot predict the extent to which future legislation and regulation could cause us to incur additional operating expenses, capital expenditures or restrictions and delays in the development of our products and properties.
RISKS RELATING TO OUR INTELLECTUAL PROPERTY
Our proprietary rights may not adequately protect our technologies.
Our commercial success will depend in part on our obtaining and maintaining patent, trade secret, copyright and trademark protection of our technologies in the United States and other jurisdictions as well as successfully enforcing this intellectual property and defending it against third-party challenges. We will only be able to protect our technologies from unauthorized use by third parties to the extent that valid and enforceable intellectual property protections, such as patents or trade secrets, cover them. In particular, we place considerable emphasis on obtaining patent and trade secret protection for significant new technologies, products and processes. The degree of future protection of our proprietary rights is uncertain because legal means afford only limited protection and may not adequately protect our rights or permit us to gain or keep our competitive advantage. The degree of future protection of our proprietary rights is also uncertain for products that are currently in the early stages of development because we cannot predict which of these products will ultimately reach the commercial market or whether the commercial versions of these products will incorporate proprietary technologies.
Our patent position is highly uncertain and involves complex legal and factual questions. Accordingly, we cannot predict the breadth of claims that may be allowed or enforced in our patents or in third-party patents. For example:
 	 	
•	we or our licensors might not have been the first to make the inventions covered by each of our pending patent applications and issued patents;.	
 	 	
•	we or our licensors might not have been the first to file patent applications for these inventions;	
 	 	
•	others may independently develop similar or alternative technologies or duplicate any of our technologies;	
 	 	
•	it is possible that none of our pending patent applications or the pending patent applications of our licensors will result in issued patents;	
 	 	
•	patents may issue to third parties that cover how we might practice our technology;	
 	 	
•	our issued patents and issued patents of our licensors may not provide a basis for commercially viable technologies, may not provide us with any competitive advantages, or may be challenged and invalidated by third parties; and	
 	 	
•	we may not develop additional proprietary technologies that are patentable	
Patents may not be issued for any pending or future pending patent applications owned by or licensed to us, and claims allowed under any issued patent or future issued patent owned or licensed by us may not be valid or sufficiently broad to protect our technologies. Moreover, protection of certain of our intellectual property may be unavailable or limited in the United States or in foreign countries, and we have not sought to obtain foreign patent protection for certain of our products or technologies due to cost, concerns about enforceability or other reasons. Any issued patents owned by or licensed to us now or in the future may be challenged, invalidated, or circumvented, and the rights under such patents may not provide us with competitive advantages. In addition, competitors may design around our technology or develop competing technologies. Intellectual property rights may also be unavailable or limited in some foreign countries, and in the case of certain products no foreign patents were filed or can be filed. This could make it easier for competitors to capture or increase their market share with respect to related technologies. We could incur substantial costs to bring suits in which we may assert our patent rights against others or defend ourselves in suits brought against us. An unfavorable outcome of any litigation could have a material adverse effect on our business and results of operations.
We also rely on trade secrets to protect our technology, especially where we believe patent protection is not appropriate or obtainable. However, trade secrets are difficult to protect. We regularly attempt to obtain confidentiality agreements and contractual provisions with our collaborators, employees and consultants to protect our trade secrets and proprietary know-how. These agreements may be breached or may not have adequate remedies for such breach. While we use reasonable efforts to protect our trade secrets, our employees, consultants, contractors or scientific and other advisors, or those of our strategic partners, may unintentionally or willfully disclose our information to competitors. If we were to enforce a claim that a third party had illegally obtained and was using our trade secrets, our enforcement efforts would be expensive and time consuming,

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and the outcome would be unpredictable. In addition, courts outside the United States are sometimes unwilling to protect trade secrets. Moreover, if our competitors independently develop equivalent knowledge, methods and know-how, it will be more difficult for us to enforce our rights and our business could be harmed.
If we are not able to defend the patent or trade secret protection position of our technologies, then we will not be able to exclude competitors from developing or marketing competing technologies and we may not generate enough revenues from product sales to justify the cost of developing our technologies and to achieve or maintain profitability.
We also rely on trademarks to establish a market identity for our company and our products. To maintain the value of our trademarks, we might have to file lawsuits against third parties to prevent them from using trademarks confusingly similar to or dilutive of our registered or unregistered trademarks. Also, we might not obtain registrations for our pending trademark applications, and we might have to defend our registered trademark and pending trademark applications from challenge by third parties. Enforcing or defending our registered and unregistered trademarks might result in significant litigation costs and damages, including the inability to continue using certain trademarks.
Third parties may claim that we infringe their intellectual property, and we could suffer significant litigation or licensing expense as a result.
Various U.S. and foreign issued patents and pending patent applications, which are owned by third parties, exist in our technology areas. Such third parties may claim that we infringe their patents. Because patent applications can take several years to result in a patent issuance, there may be currently pending applications, unknown to us, which may later result in issued patents that our technologies may infringe. For example, we are aware of competitors with patents in technology areas applicable to our optical test equipment products. Such competitors may allege that we infringe these patents. There could also be existing patents of which we are not aware that our technologies may inadvertently infringe. We have from time to time, and may in the future, be contacted by third parties, including patent assertion entities or intellectual property advisors, about licensing opportunities that also contain claims that we are infringing on third party patent rights. If third parties assert these claims against us we could incur extremely substantial costs and diversion of management resources in defending these claims, and the defense of these claims could have a material adverse effect on our business, financial condition and results of operations. Even if we believe we have not infringed on a third party’s patent rights, we may have to settle a claim on unfavorable terms because we cannot afford to litigate the claim. In addition, if third parties assert claims against us and we are unsuccessful in defending against these claims, these third parties may be awarded substantial damages as well as injunctive or other equitable relief against us, which could effectively block our ability to make, use, sell, distribute or market our products and services in the United States or abroad.
Commercial application of nanotechnologies in particular, or technologies involving nanomaterials, is new and the scope and breadth of patent protection is uncertain. Consequently, the patent positions of companies involved in nanotechnologies have not been tested, and there are complex legal and factual questions for which important legal principles will be developed or may remain unresolved. In addition, it is not clear whether such patents will be subject to interpretations or legal doctrines that differ from conventional patent law principles. Changes in either the patent laws or in interpretations of patent laws in the United States and other countries may diminish the value of our nanotechnology-related intellectual property. Accordingly, we cannot predict the breadth of claims that may be allowed or enforced in our nanotechnology-related patents or in third party patents. In the event that a claim relating to intellectual property is asserted against us, or third parties not affiliated with us hold pending or issued patents that relate to our products or technology, we may seek licenses to such intellectual property or challenge those patents. However, we may be unable to obtain these licenses on commercially reasonable terms, if at all, and our challenge of the patents may be unsuccessful. Our failure to obtain the necessary licenses or other rights could prevent the sale, manufacture or distribution of our products and, therefore, could have a material adverse effect on our business, financial condition and results of operations.
A substantial portion of our technology is subject to retained rights of our licensors, and we may not be able to prevent the loss of those rights or the grant of similar rights to third parties.
A substantial portion of our technology is licensed from academic institutions, corporations and government agencies. Under these licensing arrangements, a licensor may obtain rights over the technology, including the right to require us to grant a license to one or more third parties selected by the licensor or that we provide licensed technology or material to third parties for non-commercial research. The grant of a license for any of our core technologies to a third party could have a material and adverse effect on our business. In addition, some of our licensors retain certain rights under the licenses, including the right to grant additional licenses to a substantial portion of our core technology to third parties for non-commercial academic and research use. It is difficult to monitor and enforce such non-commercial academic and research uses, and we cannot predict whether the third-party licensees would comply with the use restrictions of such licenses. We have incurred and could incur

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substantial expenses to enforce our rights against them. We also may not fully control the ability to assert or defend those patents or other intellectual property which we have licensed from other entities, or which we have licensed to other entities.
In addition, some of our licenses with academic institutions give us the right to use certain technology previously developed by researchers at these institutions. In certain cases we also have the right to practice improvements on the licensed technology to the extent they are encompassed by the licensed patents and are within our field of use. Our licensors may currently own and may in the future obtain additional patents and patent applications that are necessary for the development, manufacture and commercial sale of our anticipated products. We may be unable to agree with one or more academic institutions from which we have obtained licenses whether certain intellectual property developed by researchers at these academic institutions is covered by our existing licenses. In the event that the new intellectual property is not covered by our existing licenses, we would be required to negotiate a new license agreement. We may not be able to reach agreement with current or future licensors on commercially reasonable terms, if at all, or the terms may not permit us to sell our products at a profit after payment of royalties, which could harm our business.
Some of our patents may cover inventions that were conceived or first reduced to practice under, or in connection with, U.S. government contracts or other federal funding agreements. With respect to inventions conceived or first reduced to practice under a federal funding agreement, the U.S. government may retain a non-exclusive, non-transferable, irrevocable, paid-up license to practice or have practiced for or on behalf of the United States the invention throughout the world. We may not succeed in our efforts to retain title in patents, maintain ownership of intellectual property or in limiting the U.S. government’s rights in our proprietary technologies and intellectual property when an issue exists as to whether such intellectual property was developed in the performance of a federal funding agreement or developed at private expense.
 
RISKS RELATING TO OUR COMMON STOCK
We may not be able to comply with all applicable listing requirements or standards of The NASDAQ Capital Market and NASDAQ could delist our common stock.
Our common stock is listed on The NASDAQ Capital Market. In order to maintain that listing, we must satisfy minimum financial and other continued listing requirements and standards. There can be no assurances that we will be able to comply with applicable listing standards. In the event that our common stock is not eligible for quotation on another market or exchange, trading of our common stock could be conducted in the over-the-counter market or on an electronic bulletin board established for unlisted securities such as the Pink Sheets or the OTC Bulletin Board. In such event, it could become more difficult to dispose of, or obtain accurate price quotations for, our common stock, and there would likely also be a reduction in our coverage by security analysts and the news media, which could cause the price of our common stock to decline further. Also, it may be difficult for us to raise additional capital if we are not listed on a major exchange.
Our common stock price has been volatile and we expect that the price of our common stock will fluctuate substantially in the future, which could cause you to lose all or a substantial part of your investment.
The public trading price for our common stock is volatile and may fluctuate significantly. Since January 1, 2009, our common stock has traded between a high of $5.00 per share and a low of $0.26 per share. Among the factors, many of which we cannot control, that could cause material fluctuations in the market price for our common stock are:
 	 	
•	sales of our common stock by our significant stockholders, or the perception that such sales may occur, including sales pursuant to the Form S-3 registration statement described above;	
 	 	
•	changes in earnings estimates, investors’ perceptions, recommendations by securities analysts or our failure to achieve analysts’ earnings estimates;	
 	 	
•	changes in our status as an entity eligible to receive SBIR contracts and grants;	
 	 	
•	quarterly variations in our or our competitors’ results of operations;	
 	 	
•	general market conditions and other factors unrelated to our operating performance or the operating performance of our competitors;	
 	 	
•	announcements by us, or by our competitors, of acquisitions, new products, significant contracts, commercial relationships or capital commitments;	
 	 	
•	pending or threatened litigation;	
 	 	
•	any major change in our board of directors or management or any competing proxy solicitations for director nominees;	

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•	changes in governmental regulations or in the status of our regulatory approvals;	
 	 	
•	announcements related to patents issued to us or our competitors;	
 	 	
•	a lack of, limited or negative industry or securities analyst coverage;	
 	 	
•	discussions of our company or our stock price by the financial and scientific press and online investor communities such as chat rooms; and	
 	 	
•	general developments in our industry.	
In addition, the stock prices of many technology companies have experienced wide fluctuations that have often been unrelated to the operating performance of those companies. These factors may materially and adversely affect the market price of our common stock.
If our internal control over financial reporting is found not to be effective or if we make disclosure of existing or potential significant deficiencies or material weaknesses in those controls, investors could lose confidence in our financial reports, and our stock price may be adversely affected.
Section 404 of the Sarbanes-Oxley Act of 2002 requires us to include an internal control report with our Annual Report on Form 10-K. That report must include management’s assessment of the effectiveness of our internal control over financial reporting as of the end of the fiscal year.
We evaluate our existing internal control over financial reporting based on the framework issued by the Committee of Sponsoring Organizations of the Treadway Commission. During the course of our ongoing evaluation of the internal controls, we may identify areas requiring improvement, and may have to design enhanced processes and controls to address issues identified through this review. Remedying any deficiencies, significant deficiencies or material weaknesses that we identify may require us to incur significant costs and expend significant time and management resources. We cannot assure you that any of the measures we implement to remedy any such deficiencies will effectively mitigate or remedy such deficiencies. Investors could lose confidence in our financial reports, and our stock price may be adversely affected, if our internal controls over financial reporting are found not to be effective by management or if we make disclosure of existing or potential significant deficiencies or material weaknesses in those controls.
Anti-takeover provisions in our amended and restated certificate of incorporation and bylaws and Delaware law could discourage or prevent a change in control, even if an acquisition would be beneficial to our stockholders, which could affect our stock price adversely and prevent attempts by our stockholders to replace or remove our current management.
Our amended and restated certificate of incorporation and bylaws and Delaware law contain provisions that might delay or prevent a change in control, discourage bids at a premium over the market price of our common stock and adversely affect the market price of our common stock and the voting and other rights of the holders of our common stock. These provisions include:
 	 	
•	a classified board of directors serving staggered terms;	
 	 	
•	advance notice requirements to stockholders for matters to be brought at stockholder meetings;	
 	 	
•	a supermajority stockholder vote requirement for amending certain provisions of our amended and restated certificate of incorporation and bylaws; and	
 	 	
•	the right to issue preferred stock without stockholder approval, which could be used to dilute the stock ownership of a potential hostile acquirer.	
We are also subject to provisions of the Delaware corporation law that, in general, prohibit any business combination with a beneficial owner of 15% or more of our common stock for five years unless the holder’s acquisition of our stock was approved in advance by our board of directors.
The existence of these provisions could adversely affect the voting power of holders of common stock and limit the price that investors might be willing to pay in the future for shares of our common stock.
 
We may become involved in securities class action litigation that could divert management’s attention and harm our business and our insurance coverage may not be sufficient to cover all costs and damages.

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The stock market has from time to time experienced significant price and volume fluctuations that have affected the market prices for the common stock of technology companies. These broad market fluctuations may cause the market price of our common stock to decline. In the past, following periods of volatility in the market price of a particular company’s securities, securities class action litigation has often been brought against that company. Securities class litigation also often follows certain significant business transactions, such as the sale of a business division or a change in control transaction. We may become involved in this type of litigation in the future. Litigation often is expensive and diverts management’s attention and resources, which could adversely affect our business.
 
ITEM 1B.    UNRESOLVED STAFF COMMENTS
Not applicable.
 
ITEM 2.    PROPERTIES
We lease approximately 24,000 square feet of space in Roanoke, Virginia from Carilion Clinic, our largest institutional stockholder. This property is used for our corporate headquarters as well as for general administrative functions. Pursuant to a sublease entered into with Mac-B in connection with our sale of SCC to Mac-B, we sublease approximately 12,000 square feet of this space to Mac-B.
We lease approximately 37,000 square feet of space in Blacksburg, Virginia, near Virginia Tech, which is used by both our Technology Development segment and our Products and Licensing segment.
We lease approximately 16,000 square feet of space in Charlottesville, Virginia, near the University of Virginia, for use by certain groups in our Technology Development segment.
We own a 24,000 square foot facility in Danville, Virginia. This property was previously the subject of a lease with the city, and we exercised a purchase option during 2010 to acquire the building for approximately $70,000. Our Technology Development segment primarily uses this facility for nanomaterials research and development and manufacturing.
We believe that our existing facilities are adequate for our current needs and suitable additional or substitute space will be available as needed to accommodate expansion of our operations.

ITEM 3.    LEGAL PROCEEDINGS
From time to time, we may become involved in litigation or claims arising out of our operations in the normal course of business. Management currently believes the amount of ultimate liability, if any, with respect to these actions will not materially affect our financial position, results of operations, or liquidity.
 
ITEM 4.    MINE SAFETY DISCLOSURES
Not applicable.

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PART II
 
ITEM 5.    MARKET FOR REGISTRANT’S COMMON EQUITY, RELATED STOCKHOLDER MATTERS AND ISSUER PURCHASES OF EQUITY SECURITIES
PRICE RANGE OF COMMON STOCK
Our common stock trades on The NASDAQ Capital Market. The following table sets forth the high and low sales prices of our common stock for each period indicated as reported by NASDAQ.

 	 	2012	 	2013	
Fiscal Period	 	High	 	Low	 	High	 	Low	
First Quarter	 	$	1.98	
 	 	$	1.20	
 	 	$	1.40	
 	 	$	1.09	
 	
Second Quarter	 	$	1.80	
 	 	$	1.23	
 	 	$	1.35	
 	 	$	1.09	
 	
Third Quarter	 	$	1.95	
 	 	$	1.31	
 	 	$	2.40	
 	 	$	1.13	
 	
Fourth Quarter	 	$	1.92	
 	 	$	1.12	
 	 	$	1.80	
 	 	$	1.15	
 	
We have a single class of common stock outstanding. As of March 13, 2014, there were approximately 84 stockholders of record of our common stock. The number of holders of record of our common stock does not reflect the number of beneficial holders whose shares are held by depositories, brokers or other nominees.
STOCK PERFORMANCE GRAPH
The graph set forth below compares the cumulative total stockholder return on our common stock for the previous five years, during which our common stock was traded on the NASDAQ Global Market until being transferred to the NASDAQ Capital Market in 2009, as compared to the cumulative total return of the NASDAQ Composite Index and the Russell 2000 Index over the same period. This graph assumes the investment of $100,000 in our common stock at the closing price on January 1, 2009, and an equivalent amount in the NASDAQ Composite Index and the Russell 2000 Index on that date, and assumes the reinvestment of dividends, if any. We have never paid dividends on our common stock and have no present plans to do so.
Since there is no published industry or line-of-business index for our business reflective of our performance, nor do we believe we can reasonably identify a peer group, we measure our performance against issuers with similar market capitalizations. We selected the Russell 2000 Index because it measures the performance of a broad range of companies with lower market capitalizations than those companies included in the S&P 500 Index.
The comparisons shown in the graph below are based upon historical data. We caution that the stock price performance shown in the graph below is not necessarily indicative of, nor is it intended to forecast, the potential future performance of our common stock.

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The preceding Stock Performance Graph is not deemed filed with the Securities and Exchange Commission and shall not be incorporated by reference in any of our filings under the Securities Act of 1933, as amended, or the Securities Exchange Act of 1934, as amended, whether made before or after the date hereof and irrespective of any general incorporation language in any such filing.
DIVIDEND POLICY
Since our inception, we have never declared or paid any cash dividends on our common stock. We currently expect to retain any future earnings for use in the operation and expansion of our business, and therefore do not anticipate paying any cash dividends in the foreseeable future. In addition, our line of credit facility with Silicon Valley Bank restricts us from paying cash dividends on our capital stock without the bank’s prior written consent.

ITEM 6.    SELECTED FINANCIAL DATA
The consolidated statement of operations data for each of the three years in the period ended December 31, 2013 and the consolidated balance sheet data as of December 31, 2012 and 2013 have been derived from our audited consolidated financial statements appearing elsewhere in this report. The consolidated statement of operations data for the years ended December 31, 2009 and 2010 and the consolidated balance sheet data as of December 31, 2009, 2010 and 2011 have been derived from our audited consolidated financial statements that do not appear in this report. The following selected consolidated financial data should be read in conjunction with our consolidated financial statements and the accompanying notes and “Management’s Discussion and Analysis of Financial Condition and Results of Operations” included at Part II, Item 7 in this Annual Report on Form 10-K. The selected data in this section is not intended to replace the consolidated financial statements, and the historical results are not necessarily indicative of the results to be expected in any future period.

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In thousands, except share and per share data	2009 (a)	 	2010	 	2011	 	2012	 	2013	
Consolidated Statement of Operations Data:	 	 	 	 	 	 	 	 	 	
Revenues:	 	 	 	 	 	 	 	 	 	
Technology development revenues	$	16,160	
 	 	$	14,365	
 	 	$	15,586	
 	 	$	15,127	
 	 	$	11,422	
 	
Products and Licensing revenues	9,374	
 	 	12,133	
 	 	13,196	
 	 	11,251	
 	 	10,624	
 	
Total revenues	25,534	
 	 	26,498	
 	 	28,782	
 	 	26,378	
 	 	22,046	
 	
Cost of revenues:	 	 	 	 	 	 	 	 	 	
Technology development costs	11,212	
 	 	10,454	
 	 	11,483	
 	 	10,749	
 	 	8,882	
 	
Products and Licensing costs	4,784	
 	 	5,787	
 	 	6,590	
 	 	5,242	
 	 	5,183	
 	
Total cost of revenues	15,996	
 	 	16,241	
 	 	18,073	
 	 	15,991	
 	 	14,065	
 	
Gross profit	9,538	
 	 	10,257	
 	 	10,709	
 	 	10,387	
 	 	7,981	
 	
Operating expense	29,881	
 	 	14,425	
 	 	13,557	
 	 	12,762	
 	 	13,692	
 	
Operating loss	(20,343	)	 	(4,168	)	 	(2,848	)	 	(2,375	)	 	(5,711	)	
Other income, net	1	
 	 	77	
 	 	228	
 	 	108	
 	 	347	
 	
Interest income, net	(504	)	 	(474	)	 	(388	)	 	(312	)	 	(208	)	
Loss from continuing operations before reorganization items and income tax	(20,846	)	 	(4,565	)	 	(3,008	)	 	(2,579	)	 	(5,571	)	
Reorganization Costs	1,898	
 	 	174	
 	 	—	
 	 	—	
 	 	—	
 	
Loss from continuing operations before income tax	(22,744	)	 	(4,739	)	 	(3,008	)	 	(2,579	)	 	(5,571	)	
Income tax benefit	(500	)	 	(478	)	 	(479	)	 	(441	)	 	(1,454	)	
Loss from continuing operations, net	(22,244	)	 	(4,261	)	 	(2,529	)	 	(2,138	)	 	(4,117	)	
Income from discontinued operations, net of income taxes	1,799	
 	 	1,641	
 	 	1,137	
 	 	755	
 	 	3,314	
 	
Net loss	(20,445	)	 	(2,620	)	 	(1,392	)	 	(1,383	)	 	(803	)	
Preferred stock dividend	—	
 	 	361	
 	 	127	
 	 	120	
 	 	102	
 	
Net loss attributable to common stockholders	$	(20,445	)	 	$	(2,981	)	 	$	(1,519	)	 	$	(1,504	)	 	$	(905	)	
Net loss per share from continuing operations:	 	 	 	 	 	 	 	 	 	
Basic	$	(1.98	)	 	$	(0.33	)	 	$	(0.19	)	 	$	(0.15	)	 	$	(0.29	)	
Diluted	$	(1.98	)	 	$	(0.33	)	 	$	(0.19	)	 	$	(0.15	)	 	$	(0.29	)	
Net income per share from discontinued operations:	 	 	 	 	 	 	 	 	 	
Basic	$	0.16	
 	 	$	0.13	
 	 	$	0.08	
 	 	$	0.05	
 	 	$	0.23	
 	
Diluted	$	0.15	
 	 	$	0.10	
 	 	$	0.07	
 	 	$	0.05	
 	 	$	0.20	
 	
Net loss per share attributable to common stockholders:	 	 	 	 	 	 	 	 	 	
Basic	$	(1.82	)	 	$	(0.23	)	 	$	(0.11	)	 	$	(0.11	)	 	$	(0.06	)	
Diluted	$	(1.82	)	 	$	(0.23	)	 	$	(0.11	)	 	$	(0.11	)	 	$	(0.06	)	
Weighted-average number of shares used in per share calculations:	 	 	 	 	 	 	 	 	 	
Basic	11,232,716	
 	 	13,009,326	
 	 	13,647,555	
 	 	13,930,267	
 	 	14,336,135	
 	
Diluted	12,244,403	
 	 	15,777,195	
 	 	15,876,471	
 	 	16,312,048	
 	 	16,621,927	

 	
 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	
 	2009	 	2010	 	2011	 	2012	 	2013	
Consolidated Balance Sheet Data:	 	 	 	 	 	 	 	 	 	
Cash and cash equivalents	$	5,229	
 	 	$	7,217	
 	 	$	8,939	
 	 	$	6,340	
 	 	$	7,779	
 	
Working capital	16,529	
 	 	8,055	
 	 	10,928	
 	 	10,509	
 	 	10,106	
 	
Total assets	21,758	
 	 	22,876	
 	 	22,919	
 	 	20,458	
 	 	19,704	
 	
Total current liabilities	5,556	
 	 	10,648	
 	 	8,407	
 	 	6,932	
 	 	7,206	
 	
Total debt	5,000	
 	 	6,307	
 	 	5,250	
 	 	3,625	
 	 	2,125	
 	
________________________
 	 	
(a)	In April 2009, a jury awarded Hansen Medical Inc. (“Hansen”) a judgment of $36.3 million following a trial. In January 2010, we and Hansen entered into a settlement agreement that reduced our liability to $9.7 million. This amount was recognized in operating expenses for the year ended December 31, 2009 and is included in accrued liabilities at December 31, 2009. As a result of the jury award, we performed an interim goodwill and intangible asset impairment analysis. As a result of this analysis, we recognized an impairment of $1.3 million during the quarter ended March 31, 2009. We also determined that our remaining deferred tax asset was no longer likely to be realized and placed a valuation allowance of $0.6 million against the asset. On July 17, 2009, we filed a voluntary petition for relief in order to reorganize under Chapter 11 of the United States Bankruptcy Code. As a result of this action, we incurred significant legal expenses that are included in reorganization expenses for the year ended December 31, 2009 in the table above.	

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ITEM 7.    MANAGEMENT’S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND RESULTS OF OPERATIONS
The following discussion and analysis of our financial condition and results of operations should be read in conjunction with our consolidated financial statements and the related notes to those statements included elsewhere in this report. In addition to historical financial information, the following discussion and analysis contains forward-looking statements that involve risks, uncertainties and assumptions. Our actual results and timing of selected events may differ materially from those anticipated in these forward-looking statements as a result of many factors, including those discussed under “Risk Factors” and elsewhere in this report.
Business Overview
We develop, manufacture and market fiber optic sensing and test & measurement products focused on bringing new and innovative technology solutions to measure, monitor, protect and improve critical processes in the aerospace, automotive, energy, composite, telecommunications, and defense industries. In addition, we provide applied research services, typically under research programs funded by the U.S. government, in areas of advance materials, sensing, and healthcare applications. Our business model is designed to accelerate the process of bringing new and innovative products to market. We use our in-house technical expertise across a range of technologies to perform applied research services for companies and government-funded projects. We continue to invest in product development and commercialization, which we anticipate will lead to increased product sales growth.
Our corporate growth strategy is focused on becoming the leading provider of fiber optic strain & temperature sensing solutions and standard test methods for composite, as well as non-composite materials, structures and systems.
We are organized into two main business segments, our Products and Licensing segment and our Technology Development segment. Our Products and Licensing segment develops, manufactures and markets our fiber optic sensing, as well as test and measurement products and also conducts applied research in the fiber optic sensing area for both corporate and government customers. We are continuing to develop and commercialize our fiber optic technology for strain and temperature sensing applications for the aerospace, automotive, and energy industries. Our Products and Licensing segment revenues represented approximately 46%, 43% and 48% of our total revenues for the years ended December 31, 2011, 2012 and 2013, respectively. A breakdown of our operating income (loss) by segment, as well as our total assets by segment, is provided in footnote 13 to our consolidated financial statements included in this report.
Our Technology Development segment performs applied research principally in the areas of sensing and instrumentation, advanced materials and health sciences. Our Technology Development segment comprised approximately 54%, 57% and 52% of our total revenues for the years ended December 31, 2011, 2012 and 2013, respectively. Prior to our sale of SCC to Mac-B, SCC provided innovative solutions designed to secure critical technologies within the U.S. government. SCC conducted applied research and provided services to the government in this area, with its revenues primarily derived from U.S. government contracts and purchase orders. Following the sale of SCC, our Technology Development segment predominantly performs applied research in the areas of sensing and materials. Most of the government funding for our Technology Development segment excluding SCC is derived from the Small Business Innovation Research, or SBIR, program coordinated by the U.S. Small Business Administration, or SBA.
We generate revenues through technology development services provided under contractual arrangements, product sales, product development under contractual relationships and license fees. Our Technology Development segment revenues have historically accounted for a large portion of our total revenues, and we expect that they will continue to represent a significant portion of our total revenues for the foreseeable future. Our Technology Development segment revenues decreased from $15.6 million in 2011 to $15.1 million in 2012 and further to $11.4 million in 2013. The decrease from 2012 to 2013 was caused primarily by a decrease in our optical systems group due to the completion of certain large contracts during 2012 that were not renewed or replaced in 2013.
Within the Technology Development segment, we have historically had a backlog of contracts for which work has been scheduled, but for which a specified portion of work has not yet been completed. We define backlog as the dollar amount of obligations payable to us under negotiated contracts upon completion of a specified portion of work that has not yet been completed, exclusive of revenues previously recognized for work already performed under these contracts, if any. Total backlog includes funded backlog, which is the amount for which money has been directly authorized by the U.S. Congress and for which a purchase order has been received by a commercial customer, and unfunded backlog, representing firm orders for which funding has not yet been appropriated. Indefinite delivery and quantity contracts and unexercised options are not reported in total backlog. The approximate value of our Technology Development segment backlog was $8.7 million at December 31, 2013 and $10.3 million at December 31, 2012, excluding $3.3 million of backlog related to SCC as of December 31, 2012.

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Revenues from product sales currently represent a smaller portion of our total revenues, and, historically, we have derived most of these revenues from the sales of our sensing systems and products that make use of light-transmitting optical fibers, or fiber optics. We continue to invest in product development and commercialization, which we anticipate will lead to increased product sales growth. Although we have been successful in licensing certain technology in past years, we do not expect license revenues to represent a significant portion of future revenues. Over time, however, we do intend to gradually increase such revenues. In the near term, we expect revenues from product sales and product development to be primarily in areas associated with our fiber optic instrumentation, test and measurement and sensing platforms. In the long term, we expect that revenues from product sales will represent a larger portion of our total revenues and that as we develop and commercialize new products, these revenues will reflect a broader and more diversified mix of products.
We incurred net losses attributable to common stockholders of approximately $1.5 million, $1.5 million and $0.9 million for the years ended December 31, 2011, 2012 and 2013, respectively.
We expect to continue to incur increasing expenses as we seek to expand our business, including expenses for research and development, sales and marketing and manufacturing capabilities. We may also grow our business in part through acquisitions of additional companies and complementary technologies, which could cause us to incur transaction expenses, amortization or write-offs of intangible assets and other acquisition-related expenses. As a result, we expect to incur net losses for the foreseeable future, and these losses could be substantial.
In recent years, economic conditions around the world deteriorated, and the outlook for 2014 and beyond remains uncertain. This slowing of the economy, both in the United States and globally, reduced the financial capacities of some of our customers and potential customers, thereby slowing spending on the products and services we provide. Furthermore, reductions in government spending may impact the availability of new program awards in 2014. For example, the Budget Control Act commits the U.S. Government to reduce the federal deficit by $1.2 trillion over ten years through a combination of automatic, across-the-board spending cuts and caps on discretionary spending (“sequestration”). Automatic across-the-board cuts required by sequestration could have a material adverse effect on our technology development revenue and, consequently, our results of operations. While the exact manner in which sequestration will impact our business is unclear, funding for programs in which we participate could be reduced, delayed or canceled. Our ability to obtain new contract awards also could be negatively affected.
On January 21, 2014, we sold our assets associated with the development of fiber optic shape sensing and localization for the medical field to affiliates of Intuitive, for total cash consideration of up to $30 million, including $6 million received at closing, $6 million to be received in April 2014 and up to $18 million that we may receive in the future based on the achievement of certain technical milestones and royalties on system sales if any. Our revenues recognized related to fiber optic shape sensing in medical applications were $3.8 million, $3.3 million and $2.7 million for the years ended December 31, 2011, 2012, and $2013, respectively.     
Our sales of SCC in 2013 and our medical shape sensing business, in 2014 are expected to result in lower revenues until we can increase revenues significantly, primarily from product sales. As a result, we may incur greater net losses than we have in prior years.

Description of Our Revenues, Costs and Expenses
Revenues
We generate revenues from technology development, product sales and commercial product development and licensing activities. We derive technology development revenues from providing research and development services to third parties, including government entities, academic institutions and corporations, and from achieving milestones established by some of these contracts and in collaboration agreements. In general, we complete contracted research over periods ranging from six months to three years, and recognize these revenues over the life of the contract as costs are incurred or upon the achievement of certain milestones built into the contracts. Our technology development revenues represented approximately 54%, 57% and 52% of our total revenues for the years ended December 31, 2011, 2012 and 2013, respectively.
Our products and licensing revenues reflect amounts that we receive from sales of our products or development of products for third parties, as well as fees paid to us in connection with licenses or sub-licenses of certain patents and other intellectual property, and represented approximately 46%, 43% and 48% of our total revenues for the years ended December 31, 2011, 2012 and 2013, respectively. Within product and licensing revenues, revenues from our medical shape sensing business, sold to Intuitive in January 2014, represented approximately $3.8 million, $3.3 million and $2.7 million, respectively, for the years ended December 31, 2011, 2012 and 2013.

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Cost of Revenues
Cost of revenues associated with technology development revenues consists of costs associated with performing the related research activities including direct labor, amounts paid to subcontractors and overhead allocated to technology development activities.
Cost of revenues associated with product sales and license revenues consists of license fees for use of certain technologies; product manufacturing costs including all direct material and direct labor costs; amounts paid to our contract manufacturers; manufacturing, shipping and handling; provisions for product warranties; and inventory obsolescence, as well as overhead allocated to each of these activities.
Operating Expense
Operating expense consists of selling, general and administrative expenses, as well as expenses related to research, development and engineering, depreciation of fixed assets and amortization of intangible assets. These expenses also include compensation for employees in executive and operational functions including certain non-cash charges related to expenses from option grants, facilities costs, professional fees, salaries, commissions, travel expense and related benefits of personnel engaged in sales, product management and marketing activities; costs of marketing programs and promotional materials; salaries, bonuses and related benefits of personnel engaged in our own research and development beyond the scope and activities of our Technology Development segment; product development activities not provided under contracts with third parties; and overhead costs related to these activities.
Interest Expense, net
In February 2010, we entered into a new line of credit facility with Silicon Valley Bank, or SVB, with a borrowing capacity of $5.0 million. In May 2011, we entered into a loan modification agreement with SVB under which we repaid the outstanding balance under the prior line of credit and obtained a term loan in the amount of $6.0 million, along with a new $1.0 million line of credit. In May 2012, we entered into another loan modification agreement with SVB under which we extended the maturity date of the line of credit to May 2014 and adjusted certain covenants. On March 21, 2013, we entered into another loan modification agreement with SVB under which we replaced the previous financial covenants with a single covenant that we maintain a minimum cash balance of $5.0 million. At December 31, 2013, we had $2.1 million outstanding on the term loan and no amounts outstanding on the line of credit. Effective on January 21, 2014, this minimum cash balance covenant was modified to reduce the required minimum balance to $3.5 million.

During the years 2011, 2012 and 2013, interest expense included interest accrued on our outstanding bank credit facilities, and interest incurred with respect to our capital lease obligations. During 2011, interest expense also included interest incurred with respect to amounts owed to Hansen Medical under a promissory note, until such amounts were paid in full in May 2011.
Interest income includes amounts earned on our cash deposits with financial institutions.
Critical Accounting Policies and Estimates
Technology Development Revenues
We perform research and development for U.S. Federal government agencies, educational institutions and commercial organizations. We recognize revenue under research contracts when a contract has been executed, the contract price is fixed and determinable, delivery of services or products has occurred, and collectability of the contract price is considered reasonably assured and can be reasonably estimated. Revenue is earned under cost reimbursable, time and materials and fixed price contracts. Direct contract costs are expensed as incurred.
Under cost reimbursable contracts, we are reimbursed for costs that are determined to be reasonable, allowable and allocable to the contract and paid a fixed fee representing the profit negotiated between us and the contracting agency. Revenue from cost reimbursable contracts is recognized as costs are incurred plus an estimate of applicable fees earned. We consider fixed fees under cost reimbursable contracts to be earned in proportion to the allowable costs incurred in performance of the contract.
Revenue from time and materials contracts is recognized based on direct labor hours expended at contract billing rates plus other billable direct costs.

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Fixed price contracts may include either a product delivery or specific service performance throughout a period. For fixed price contracts that are based on the proportional performance method and involve a specified number of deliverables, we recognize revenue based on the proportion of the cost of the deliverables compared to the cost of all deliverables included in the contract as this method more accurately measures performance under these arrangements. For fixed price contracts that provide for the development and delivery of a specific prototype or product, revenue is recognized based upon the percentage of completion method.
Our contracts with agencies of the U.S. government are subject to periodic funding by the respective contracting agency. Funding for a contract may be provided in full at inception of the contract or ratably throughout the contract as the services are provided. In evaluating the probability of funding for purposes of assessing collectability of the contract price, we consider our previous experience with our customers, communication with our customers regarding funding status and our knowledge of available funding for the contract or program. If funding is not assessed as probable, revenue recognition is deferred until realization is reasonably assured.
Contract revenue recognition inherently involves estimation, including the contemplated level of effort to accomplish the tasks under the contract, the cost of the effort and an ongoing assessment of progress toward completing the contract. From time to time, as part of normal management processes, facts may change, causing revisions to estimated total costs or revenues expected. The cumulative impact of any revisions to estimates and the full impact of anticipated losses on any type of contract are recognized in the period in which they become known.
The underlying bases for estimating our contract research revenues are measurable expenses, such as labor, subcontractor costs and materials, and data that are updated on a regular basis for purposes of preparing our cost estimates. Our research contracts generally have a period of performance of six to 18 months, and our estimates of contract costs have historically been consistent with actual results. Revisions in these estimates between accounting periods to reflect changing facts and circumstances have not had a material impact on our operating results, and we do not expect future changes in these estimates to be material.
Whether certain costs under government contracts are allowable is subject to audit by the government. Certain indirect costs are charged to contracts using provisional or estimated indirect rates, which are subject to later revision based on government audits of those costs. Management is of the opinion that costs subsequently disallowed, if any, would not likely have a significant impact on revenues recognized for those contracts.
Products and Licensing Revenues
We recognize revenue relating to our product sales when persuasive evidence of an arrangement exists, delivery has occurred, the selling price is fixed or determinable and collectability of the resulting receivable is reasonably assured. For tangible products that contain software that is essential to the tangible product’s functionality, we consider the product and software to be a single unit of accounting and recognize revenue accordingly. We evaluate product sales that are a part of multiple-element revenue arrangements to determine whether separate units of accounting exist, and we follow appropriate revenue recognition policies for each separate unit. For multi-element arrangements we allocate revenue to all significant deliverables based on their relative selling prices. In such circumstances, we use a hierarchy to determine the selling price to be used for allocating revenue to deliverables: (i) vendor-specific objective evidence of fair value, or VSOE, (ii) third-party evidence of selling price or TPE, and (iii) best estimate of the selling price, or ESP. VSOE generally exists only when we sell the deliverable separately and is the price actually charged by us for that deliverable. Our product sales often include bundled products, options and services and therefore VSOE is not readily determinable. In addition, we believe that because of unique features of our products, TPE also is not available. ESPs reflect our best estimates of what the selling prices of elements would be if they were sold regularly on a stand-alone basis.
Our process for determining ESP for deliverables without VSOE or TPE considers multiple factors that may vary depending upon the unique facts and circumstances related to each deliverable. Key factors considered in developing the ESPs include prices charged by us for similar offerings, our historical pricing practices, the nature of the deliverables, and the relative ESP of all of the deliverables as compared to the total selling price of the product. We may also consider, when appropriate, the impact of other products and services, on selling price assumptions when developing and reviewing our ESPs.
Income Taxes
We estimate our tax liability through calculating our current tax liability, together with assessing temporary differences resulting from the different treatment of items for tax and accounting purposes. These differences result in deferred tax assets and liabilities, which we record on our balance sheet. Management then assesses the likelihood that deferred tax assets will be recovered in future periods. In assessing the need for a valuation allowance against the net deferred tax asset, management considers factors such as future reversals of existing taxable temporary differences, taxable income in prior carry back years,

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whether carry back is permitted under the tax law, tax planning strategies and estimated future taxable income exclusive of reversing temporary differences and carry forwards. To the extent that we cannot conclude that it is more likely than not that the benefit of such assets will be realized, we establish a valuation allowance to reduce their net carrying value.
As we assess our projections of future taxable income or other factors that may impact our ability to generate taxable income in future periods, our estimate of the required valuation allowance may change, which could have a material impact on future earnings or losses.
We recognize tax benefits from an uncertain tax position only if it is more likely than not that the tax position will be sustained on examination by taxing authorities. While it is often difficult to predict the final outcome of timing of the resolution of any particular tax matter, we establish a liability at the time we determine it is probable we will be required to pay additional taxes related to certain matters. These liabilities are recorded in accrued liabilities in our consolidated balance sheets. We adjust this provision, including any impact on the related interest and penalties, in light of changing facts and circumstances, such as the progress of a tax audit. A number of years may elapse before a particular matter for which we have established a liability is audited and finally resolved. The number of years with open tax audits varies depending on the tax jurisdiction. Settlement of any particular issue would usually require the use of cash. We recognize favorable resolutions of tax matters for which we have previously established liabilities as a reduction to our income tax expense when the amounts involved become known.
Due to differences between federal and state tax law, and accounting principles generally accepted in the United States of America, or GAAP, certain items are included in the tax return at different times than when those items are reflected in the consolidated financial statements. Therefore, the annual tax rate reflected in our consolidated financial statements is different than that reported in our tax return. Some of these differences are permanent, such as expenses that are not deductible in our tax return. Some differences, such as depreciation expense, reverse over time and create deferred tax assets and liabilities. The tax rates used to determine deferred tax assets or liabilities are the enacted tax rates in effect for the year in which the differences are expected to reverse. Based on the evaluation of all available information, we recognize future tax benefits, such as net operating loss carry forwards, to the extent that realizing these benefits is considered more likely than not.
Stock-Based Compensation
We recognize stock-based compensation expense based upon the fair value of the underlying equity award on the date of the grant. We have elected to use the Black-Scholes option pricing model to value any awards granted. We amortize stock-based compensation for such awards on a straight-line basis over the related service period of the awards taking into account the effects of the employees’ expected exercise and post-vesting employment termination behavior. To compute the volatility used in this model, we use the lifetime volatility of our common stock.
Long-lived and Intangible Assets
Long-lived assets and certain identifiable intangibles are reviewed for impairment whenever events or changes in circumstances indicate that the carrying amount of an asset might not be recoverable. Recoverability of assets to be held and used is measured by a comparison of the carrying amount of an asset to future un-discounted net cash flows expected to be generated by the asset. If such assets are considered to be impaired, the impairment to be recognized is measured by the amount by which the carrying amount of the asset exceeds the fair value of the asset. Assets to be disposed of are reported at the lower of the carrying amount or fair value, less cost to sell.

Results of Operations
The following table shows information derived from our consolidated statements of operations expressed as a percentage of total revenues for the periods presented.

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 	Year ended December 31,	
 	2011	 	2012	 	2013	
Revenues:	 	 	 	 	 	
Technology development revenues	54.2	 %	 	57.3	 %	 	51.8	 %	
Product and licensing revenues	45.8	
 	 	42.7	
 	 	48.2	
 	
Total revenues	100.0	
 	 	100.0	
 	 	100.0	
 	
Cost of Revenues:	 	 	 	 	 	
Technology development costs	39.9	
 	 	40.8	
 	 	40.3	
 	
Product and licensing costs	22.9	
 	 	19.9	
 	 	23.5	
 	
Total cost of revenues	62.8	
 	 	60.7	
 	 	63.8	
 	
Gross Profit	37.2	
 	 	39.4	
 	 	36.2	
 	
Operating Expense	47.1	
 	 	48.4	
 	 	62.1	
 	
Operating Loss	(9.9	)	 	(9.0	)	 	(25.9	)	
Total Other (Expense) Income, net	(0.6	)	 	(0.8	)	 	0.6	
 	
Loss from continuing operations before income taxes	(10.5	)	 	(9.8	)	 	(25.3	)	
Loss from continuing operations	(8.8	)	 	(8.1	)	 	(18.7	)	
Income from discontinued operations, net of income taxes	3.9	
 	 	2.9	
 	 	15.0	
 	
Net Loss	(4.9	)	 	(5.2	)	 	(3.7	)	
Year Ended December 31, 2013 Compared to Year Ended December 31, 2012
Revenues

 	2013	 	2012	 	$ Difference	 	% Difference	
Technology development revenues	$	11,421,868	
 	 	$	15,126,834	
 	 	$	(3,704,966	)	 	(24.5	)%	
Products and licensing revenues	10,624,350	
 	 	11,250,717	
 	 	(626,367	)	 	(5.6	)%	
Total revenues	$	22,046,218	
 	 	$	26,377,551	
 	 	$	(4,331,333	)	 	(16.4	)%	
Our Technology Development segment revenue decreased $3.7 million from $15.1 million in the year ended December 31, 2012 to $11.4 million in the year ended December 31, 2013. This decrease was due primarily to a decline in revenues from our optical systems group of $3.2 million due to the completion of certain large contracts during the second half of 2012, which contracts were not renewed or replaced in 2013.
Our Products and Licensing segment revenue decreased from $11.3 million to $10.6 million, a decrease of 5.6%, for the year ended December 31, 2013 as compared to the year ended December 31, 2012. Our Products and Licensing segment revenues decreased primarily due to a decrease of approximately $0.5 million in prototype medical shape sensing units sold in 2012 compared to 2013.

Cost of Revenues

 	2013	 	2012	 	$ Difference	 	% Difference	
Technology development costs	$	8,882,071	
 	 	$	10,749,335	
 	 	$	(1,867,264	)	 	(17.4	)%	
Products and licensing costs	5,182,633	
 	 	5,242,043	
 	 	(59,410	)	 	(1.1	)%	
Total costs of revenues	$	14,064,704	
 	 	$	15,991,378	
 	 	$	(1,926,674	)	 	(12.0	)%	
Our Technology Development segment costs decreased to $8.9 million for the year ended December 31, 2013 from $10.7 million for the year ended December 31, 2012 a decrease of 17.4%. The decrease primarily reflects a $2.0 million decrease in costs, including direct labor, overhead, and subcontractor charges, associated with reduced contract work in our optical systems group for 2013 compared to 2012.
Our Products and Licensing segment costs were essentially unchanged at $5.2 million for each of the years ended December 31, 2013 and 2012.

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Operating Expense

 	2013	 	2012	 	$ Difference	 	% Difference	
Selling general and administrative expense	$	10,970,775	
 	 	$	10,249,444	
 	 	$	721,331	
 	 	7.0	%	
Research, development, and engineering expense	2,721,229	
 	 	2,512,840	
 	 	208,389	
 	 	8.3	%	
Total operating expense	$	13,692,004	
 	 	$	12,762,284	
 	 	$	929,720	
 	 	7.3	%	
Selling, general and administrative expenses increased by $0.7 million, or 7.0%, to $11.0 million for the year ended December 31, 2013, as compared to $10.2 million for the year ended December 31, 2012. This increase was due to costs recognized of $0.8 million in 2013 in connection with the sale of our shape sensing business in the medical field to Intuitive, which transaction was closed in January 2014.
Research, development, and engineering expenses increased $0.2 million, or 8.3%, from $2.5 million for 2012 to $2.7 million for 2013. This increase was partially attributable to a $0.2 million increase in engineering expenses in our products and licensing segment during the first three months ended March 31, 2013, during which our engineering resources were more heavily directed toward internal development programs rather than third-party funded product development activities.
Interest Expense and Other Income
Our net interest expense was approximately $208,000 for the year ended December 31, 2013 compared to approximately $312,000 for the year ended December 31, 2012. During 2012 and 2013, our primary outstanding borrowing was the term loan provided by SVB. The average monthly loan balance for the year ended December 31, 2013 was $2.9 million as compared to $4.4 million for the year ended December 31, 2012, resulting in a decrease in interest expense.
Other income was approximately $347,000 for the year ended December 31, 2013 and $108,000 for the year ended December 31, 2012. During the year ended December 31, 2013, we received approximately $48,000 from an insurance policy profit share and $265,000 in rent income from a sublease of office space. We also recognized additional income from the amortization of the discount we received on prepayment of the Hansen Note of approximately $38,000, which was fully amortized during the second quarter of 2013. Other income for 2012 was primarily due to the full year amortization of the Hansen Note of approximately $93,000.
Income Tax Expense (Benefit)
We recognized alternative minimum income taxes in the amounts of $14,071 and $21,417 for the years ended December 31, 2013 and 2012, respectively. For the year ended December 31, 2013, we have recognized in continuing operations an income tax benefit of $1,453,637, which is offset by the tax expense recognized on the gain on sale of the SCC business included in discontinued operations. For the year ended December 31, 2012, we recognized in continuing operations an income tax benefit of $440,758, which is offset by the tax expense recognized on the results of operations of the SCC business included in the discontinued operations.
Loss from Continuing Operations
As a result of the foregoing, including our $4.3 million decline in revenues and $0.9 million increase in operating expenses during the year ended December 31, 2013, compared to the prior year, we incurred a net loss from continuing operations of approximately $4.1 million, as compared to a net loss from continuing operations of $2.1 million for the year ended December 31, 2012.

Income from Discontinued Operations
For the year ended December 31, 2013, we recognized net income from discontinued operations of $3.3 million, compared to a net income from discontinued operations of $0.8 million for the year ended December 31, 2012. For 2013, this income consisted of a $3.4 million gain realized on the sale of our SCC business, net of income taxes, which occurred during the first quarter of 2013, partially offset by an operating loss of $0.1 million from the SCC business for the two months prior to the sale on March 1, 2013. The decrease in operating income of the SCC business in 2013 was primarily a result of a significant decline in revenue within our SCC business as a result of a decrease in revenue from one government contract.
Preferred Stock Dividend

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In January 2010, we issued 1,321,514 shares of our newly designated Series A Convertible Preferred Stock to Carilion. The Series A Convertible Preferred Stock carries an annual cumulative dividend of 6%, or approximately $0.2815 per share. During 2013 and 2012, we accrued approximately $102,000 and $120,000, respectively, for the dividends payable to Carilion. The dividends are not payable in cash, but rather in shares of our Common Stock, until liquidation event occurs. During each of 2013 and 2012, 79,292 shares of common stock became issuable to Carilion as dividends and have been recorded in the statement of stockholders’ equity.
Year Ended December 31, 2012 Compared to Year Ended December 31, 2011
Revenues

 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	
 	2012	 	2011	 	$ Difference	 	% Difference	
Technology development revenues	$	15,126,834	
 	 	$	15,586,123	
 	 	$	(459,289	)	 	(2.9	)%	
Products and licensing revenues	11,250,717	
 	 	13,195,822	
 	 	(1,945,105	)	 	(14.7	)%	
Total revenues	$	26,377,551	
 	 	$	28,781,945	
 	 	$	(2,404,394	)	 	(8.4	)%	
Our Technology Development segment revenue decreased $0.5 million from $15.6 million in the year ended December 31, 2011 to $15.1 million in the year ended December 31, 2012. Revenues in our materials groups were $6.5 million for 2012 as compared to $7.1 million for 2011. The decrease of $0.6 million was due primarily to lower contract awards within our Nanotechnology group. Revenues in our biomedical group decreased to $1.5 million, a decrease of $0.4 million from $1.9 million in 2011. This decrease is due primarily to a large contract ending mid-year and a program delay due to subcontractor relocation. These decreases were partially offset by an increase in revenues in our sensing groups, which generated $7.1 million in revenue for 2012, compared to $6.4 million for 2011. This increase of $0.7 million was due to an increase in funding in 2012 of one of our larger phase II contracts.
Our Products and Licensing segment revenue decreased from $13.2 million in the year ended December 31, 2011 to $11.3 million in the year ended December 31, 2012, a decrease of $1.9 million. Within our Products and Licensing segment, product sales revenue decreased by 7.4% to $8.7 million during the year ended December 31, 2012 as compared to $9.4 million for 2011. We experienced an increase of $2.2 million in sales of our sensing products, primarily our ODiSI product, which was offset by a decrease in our telecom industry sales products of $3.1 million, primarily our OBR and OVA products. Our product development revenue also decreased to $2.6 million for the year ended December 31, 2012 as compared to $3.6 million for 2011, a decrease of $1.0 million. This decrease was due to the decreased level of work performed under our development agreements for shape sensing in medical applications.
Cost of Revenues

 	2012	 	2011	 	$ Difference	 	% Difference	
Technology development costs	$	10,749,335	
 	 	$	11,482,856	
 	 	$	(733,521	)	 	(6.4	)%	
Products and licensing costs	5,242,043	
 	 	6,589,943	
 	 	(1,347,900	)	 	(20.5	)%	
Total costs of revenues	$	15,991,378	
 	 	$	18,072,799	
 	 	$	(2,081,421	)	 	(11.5	)%	
Our Technology Development segment costs decreased to $10.7 million for the year ended December 31, 2012 from $11.5 million in the year ended December 31, 2011. Within the Technology Development segment, our materials groups saw a decline in their cost of revenues from $5.5 million for 2011 to $4.8 million for 2012, a decline of $0.7 million, due to a decrease in direct labor and overhead. Cost of revenues in our sensing groups increased from $4.6 million for 2011 to $5.0 million for 2012, an increase of $0.4 million, with all areas of direct costs in our sensing groups showing increases, commensurate with their increases in revenue.
Our Products and Licensing segment costs decreased from $6.6 million for 2011 to $5.2 million for 2012, a decrease of 20.5%. Within our Products and Licensing segment, product sales costs for 2012 increased to $3.6 million from $3.3 million for 2011. This increase of $0.3 million of costs related to component costs for our increased sensing product sales. Contract development costs of revenues were $1.6 million for 2012, as compared to $3.3 million for 2011, a decrease of $1.7 million. This decrease in costs was primarily associated with a decrease in resources assigned to work performed on the Hansen supply and development agreement.
Operating Expense

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 	2012	 	2011	 	$ Difference	 	% Difference	
Selling, general and administrative expense	$	10,249,444	
 	 	$	11,283,139	
 	 	$	(1,033,695	)	 	(9.2	)%	
Research, development, and engineering expense	2,512,840	
 	 	2,273,886	
 	 	238,954	
 	 	10.5	 %	
Total operating expense	$	12,762,284	
 	 	$	13,557,025	
 	 	$	(794,741	)	 	(5.9	)%	
Selling, general and administrative expenses decreased by $1.0 million, or 9.2%, to $10.2 million for 2012, as compared to $11.3 million for 2011. This decrease is due primarily to a decrease in incentive compensation of $0.4 million in 2012 and a decrease of $0.3 million in stock-based compensation expense.
Research, development, and engineering expenses increased by $0.2 million, or 10.5%, to $2.5 million for 2012, as compared to $2.3 million for 2011. This increase is due primarily to increased headcount in our engineering team for fiber optic products.
Interest Expense and Other Income
Our net interest expense was approximately $312,000 for the year ended December 31, 2012 compared to approximately $388,000 for the year ended December 31, 2011. During the year ended December 31, 2012 our primary outstanding borrowing was the term loan provided by SVB. During the year ended December 31, 2011 we maintained a $2.5 million balance on our line of credit until May 2011, at which time we refinanced both the line of credit and the remaining balance under the Hansen Note with a $6.0 million term loan also provided by SVB. Interest expense incurred in 2011 included approximately $267,000 associated with our SVB debt facility and approximately $97,000 associated with the Hansen Note. The average principal balance on outstanding borrowings was $4.4 million and $4.5 million for the years ended 2012 and 2011, respectively.
Other income was approximately $108,000 for the year ended December 31, 2012 and $228,000 for the year ended December 31, 2011. Other income in 2012 was primarily due to $93,000 from the discount we received on the final payoff of the Hansen Note in 2011. During the year ended December 31, 2011, we received approximately $154,000 for reimbursement of costs incurred by us in anticipation of a new development agreement. We also recognized approximately $58,000 in Other Income from the discount we received on the final payoff of the Hansen Note in 2011.
Income Tax Expense
We paid alternative minimum income taxes in the amount of $21,417 and $10,307 for the years ended December 31, 2012 and 2011, respectively. For the years ended December 31, 2012 and 2011, we recognized in continuing operations an income tax benefit of $440,758 and $478,940, respectively, which were offset by the tax expense recognized on the results of operations of the SCC business included in the discontinued operations for each of those years.
Preferred Stock Dividend
During 2012 and 2011, we accrued approximately $120,000 and $127,000, respectively, for the dividends payable to Carilion. During each of 2012 and 2011, 79,292 shares of common stock became issuable to Carilion as dividends and have been recorded in the statement of stockholders’ equity.

Liquidity and Capital Resources
At December 31, 2013, our total cash and cash equivalents were approximately $7.8 million. The sale of SCC on March 1, 2013 significantly increased our cash and cash equivalents by providing us with net proceeds of approximately $5.2 million, after deducting transaction expenses paid by us. Included in the $5.2 million is $125,000, which was placed in escrow to be released in tranches over 18 months after closing, subject to certain events and dates and to any indemnification claims of Mac-B.
On May 18, 2011, we entered into an agreement with SVB under which SVB made a term loan to us in the amount of $6.0 million. The term loan is to be repaid by us in 48 monthly installments, plus accrued interest payable monthly in arrears, and, unless earlier terminated, matures on the earlier of either May 1, 2015 or an event of a default under the underlying loan and security agreement. The term loan carries a floating annual interest rate equal to SVB’s prime rate then in effect plus 2%.
We may prepay amounts due under the term loan at any time with no penalties.
In addition to the terms and conditions of the term loan, we have a revolving credit facility with SVB with a maximum borrowing capacity of $1.0 million and a maturity date of May 18, 2014.

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The annual interest rate on the revolving facility is equal to SVB’s prime rate plus 1.25%, payable monthly in arrears, with an unused line of credit fee one-quarter of one percent (0.25%), payable monthly. We may terminate the line of credit for a termination fee of $10,000, which fee would not be payable in the event that the line of credit is replaced by another loan facility with SVB.
Amounts due under the term loan and the revolving line of credit, which we refer to together as the Credit Facilities, are secured by substantially all of our assets, including intellectual property, personal property and bank accounts.
On March 21, 2013, the Credit Facilities were amended to replace the existing financial covenants with a single covenant that we maintain a minimum cash balance of $5.0 million. Effective on January 21, 2014, in connection with our sale of assets to Intuitive, this covenant was modified to reduce the minimum cash balance to $3.5 million. As of the date of the filing of this report, we are in compliance with all covenants under the Credit Facilities.
The Credit Facilities contain customary events of default, including nonpayment of principal, interest or other amounts, violation of covenants, material adverse change, an event of default under any subordinated debt documents, incorrectness of representations and warranties in any material respect, bankruptcy, judgments in excess of a threshold amount, and violations of other agreements in excess of a threshold amount. If any event of default occurs SVB may declare due immediately all borrowings under the Credit Facilities and foreclose on the collateral. Furthermore, an event of default under the Credit Facilities would result in an increase in the interest rate on any amounts outstanding.
The balance under the term loan at December 31, 2013 was $2,125,000, of which $625,000 was classified as long-term and $1,500,000 was classified as short-term. No amounts were outstanding under the line of credit at December 31, 2013.
In January 2014, we completed a sale of certain assets to Intuitive. Under the terms of the sale agreement we have received $6.0 million in January 2014 and expect to receive an additional $6.0 million in April of 2014.
We believe that our current cash balance, together with our cash flow from operations, the expected payments from Intuitive in 2014 and the funds available to us under the Credit Facilities with SVB, will provide adequate liquidity for us to meet our working capital needs during the remainder of 2014.
Discussion of Cash Flows

 	Twelve months ended	
 	2011	 	2012	 	2013	
Net cash provided by/(used in) operating activities	$	3,088,264	
 	 	$	(396,768	)	 	$	(1,787,292	)	
Net cash (used in)/provided by investing activities	(675,517	)	 	(595,927	)	 	4,670,448	
 	
Net cash used in by financing activities	(690,200	)	 	(1,605,971	)	 	(1,445,076	)	
Net increase/(decrease) in cash	$	1,722,547	
 	 	$	(2,598,666	)	 	$	1,438,080	
 	
During 2013, operations used $1.8 million of net cash, as compared to 2012, when operations used $0.4 million of net cash, and 2011 in which operations provided $3.1 million of net cash. In 2013, our net loss of $0.8 million included a benefit of an after-tax gain on the sale of SCC of $3.3 million and a tax benefit of $1.5 million. Absent the effects of that gain and the tax benefit, our pre-tax loss from continuing operations was $5.6 million. The pre-tax loss from continuing operations included charges for depreciation and amortization of $0.9 million, share-based compensation of $1.2 million and allowance for doubtful accounts of $0.1 million all of which are non-cash items that do not impact cash flow for the period. Additionally, changes in working capital provided net cash inflow of $1.7 million, principally due to a decrease of $1.5 million in accounts receivable.
In 2012, our net loss of $1.4 million and $2.0 million in net cash outflows from changes in operating assets and liabilities was partially offset by $3.0 million in non-cash expenses.
In 2011, our net loss of $1.4 million was offset by $3.6 million in non-cash expenses, primarily stock based compensation and $0.8 million of net cash inflows from changes in operating assets and liabilities, primarily resulting from a decrease in accounts receivable, which was partially offset by outflows in all other categories.
Cash used in or provided by investing activities relates to the purchase of property and equipment as well as capitalized costs associated with securing intellectual property rights and, in 2013, the sale of SCC. Our overall cash provided by investing activities was $4.7 million in 2013, consisting of a cash inflow $5.1 million from the sale of SCC in March of 2013 and the cash outflow of $0.2 million for the purchase of equipment, compared to $0.4 million and $0.3 million, respectively for 2012

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and 2011, and we incurred $0.3 million  in patent costs associated with certain intangible assets, primarily associated with our fiber optic platform, compared to $0.2 million and $0.3 million in 2012 and 2011, respectively.

Cash used in financing activities for the year ended December 31, 2013 was $1.4 million compared to cash used in financing activities of $1.6 million in 2012 and cash used in financing activities of $0.7 million in 2011.
During 2013, we repaid $1.5 million to SVB for principal on our Term Loan. We also paid approximately $57,000 for leased equipment and received approximately $112,000 from the exercise of options and warrants.
During 2012, we repaid $1.6 million to SVB for principal on our Term Loan. We also paid approximately $50,000 for leased equipment and received approximately $90,000 from the exercise of options and warrants.
During 2011, we received $6.0 million in term loan proceeds from SVB, which we used to repay the then outstanding balance on our revolving line of credit with SVB of $2.5 million and the then outstanding balance on our Hansen Note of approximately $3.0 million. We also made additional payments on those loans during 2011 prior to their repayment in full as well as approximately $42,000 in principal on capitalized lease obligations. Also during 2011 we received approximately $317,000 from the exercise of options and warrants.

Summary of Contractual Obligations
The following table sets forth information concerning our known contractual obligations as of December 31, 2013 that are fixed and determinable.

 	Total	 	Less than 1
year	 	1 - 3 years	 	3 - 5 years	 	More than 5
years	
Long-term debt obligations (1)	$	2,125,000	
 	 	$	1,500,000	
 	 	$	625,000	
 	 	$	—	
 	 	$	—	
 	
Operating facility leases (2)	2,434,894	
 	 	1,014,131	
 	 	1,109,023	
 	 	311,740	
 	 	—	
 	
Other leases (3)	176,924	
 	 	66,617	
 	 	102,601	
 	 	7,706	
 	 	—	
 	
Purchase order obligation (4)	1,405,026	
 	 	1,180,682	
 	 	224,344	
 	 	—	
 	 	—	
 	
City of Danville grant (5)	21,593	
 	 	21,593	
 	 	—	
 	 	—	
 	 	—	
 	
Other liabilities (6)	1,830,000	
 	 	320,000	
 	 	850,000	
 	 	440,000	
 	 	220,000	
 	
Total	$	7,993,437	
 	 	$	4,103,023	
 	 	$	2,910,968	
 	 	$	759,446	
 	 	$	220,000	
 	
_________________________
 	 	
(1) 	Amounts due under our debt obligations to SVB are payable in monthly installments through May 2015.	
 	 	
(2) 	We lease our facilities in Blacksburg, Charlottesville and Roanoke, Virginia under operating leases that as of December 31, 2013, were scheduled to expire between November 2014 and December 2018. On March 21, 2013, we amended the lease on our Roanoke office to reduce the square footage covered by the lease effective as of May 1, 2014 and extend the term of the lease through December 2018. Upon expiration of the leases, we may exercise certain renewal options as specified in the leases.	
 	 	
(3) 	In February 2011 and August 2013 we executed $274,000 and $50,100 leases,respectively, for equipment for our offices in Roanoke, Blacksburg and Charlottesville, Virginia. These equipment leases expire in February 2016 and August 2018, respectively.	
 	 	
(4) 	In the fourth quarter of 2013 our Luna Technologies subsidiary executed two non-cancelable purchase orders in the amounts of $0.9 million and $0.5 million for multiple shipments of tunable lasers to be delivered over an 18-month period beginning in December of 2013. The amount set forth in the table above represents our remaining obligation as of December 31, 2013.	
 	 	
(5) 	In March 2004, we received a $900,000 grant from the City of Danville, Virginia. One-half of the grant was to be used to offset certain capital expenditures for leasehold improvements being made at our Danville facility, and one-half was to be used for our creation of new jobs. We satisfied the job creation criteria in full and the capital expenditures criteria in part in 2008 and recognized $668,000 of the grant as income for that year. In 2009 and 2010 we satisfied additional criteria and earned another approximately $124,000 of the grant. In January 2010, we agreed to repay the remaining $108,000 of the grant in quarterly installments through November 2014.	
 	 	
(6) 	Other liabilities include remaining amounts payable for minimum royalty payments for certain licensed technologies payable over the remaining patent terms of the underlying technology.	
Off-Balance Sheet Arrangements

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We have no off-balance sheet arrangements as defined in Regulation S-K, Item 303(a)(4)(ii).
Inflation
We do not believe that inflation has had a material effect on our business, financial condition or results of operations.
 
ITEM 7A.    QUANTITATIVE AND QUALITATIVE DISCLOSURES ABOUT MARKET RISK
Market risk represents the risk of loss that may impact our financial position due to adverse changes in financial market prices and rates. We do not hold or issue financial instruments for trading purposes or have any derivative financial instruments. Our exposure to market risk is limited to interest rate fluctuations due to changes in the general level of United States interest rates.
Interest Rate Risk
We do not use derivative financial instruments as a hedge against interest rate fluctuations, and, as a result, interest income earned on our cash and cash equivalents and short-term investments is subject to changes in interest rates. However, we believe that the impact of these fluctuations does not have a material effect on our financial position due to the immediate available liquidity or short-term nature of these financial instruments.
We are exposed to interest rate fluctuations as a result of our SVB debt facility having a variable interest rate. However, the loan facility has a minimum fixed interest rate of 6%, which was in effect during both 2012 and 2013. We do not currently use derivative instruments to alter the interest rate characteristics of our debt. For the principal amount of $2.1 million outstanding under the term loan as of December 31, 2013, a change in the interest rate by one percentage point for one year would result in a change in our annual interest expense of approximately $14,000.
Foreign Currency Exchange Rate Risk
As of December 31, 2013, all payments made under our research contracts have been denominated in United States dollars. Our product sales to foreign customers are also denominated in U.S. dollars, and we do not receive payments in foreign currency. As such, we are not directly exposed to currency gains or losses resulting from fluctuations in foreign exchange rates.

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ITEM 8.    FINANCIAL STATEMENTS AND SUPPLEMENTARY DATA
Index to Consolidated Financial Statements

Report of Independent Registered Public Accounting Firm	43	
Consolidated Balance Sheets at December 31, 2012 and 2013	44	
Consolidated Statements of Operations for the years ended December 31, 2011, 2012 and 2013	45	
Consolidated Statements of Changes in Stockholder's Equity (Deficit) for the years ended December 31, 2011, 2012 and 2013	46	
Consolidated Statements of Cash Flows for the years ended December 31, 2011, 2012 and 2013	47	
Notes to Consolidated Financial Statements	48	

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REPORT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM
Board of Directors and Shareholders
Luna Innovations Incorporated
We have audited the accompanying consolidated balance sheets of Luna Innovations Incorporated (a Delaware corporation) and subsidiaries (the “Company”) as of December 31, 2013 and 2012, and the related consolidated statements of operations, stockholders’ equity (deficit), and cash flows for each of the three years in the period ended December 31, 2013. Our audits of the basic consolidated financial statements included the financial statement schedule listed in the index appearing under Item 15 (a)(2). These financial statements and financial statement schedule are the responsibility of the Company’s management. Our responsibility is to express an opinion on these financial statements and financial statement schedule based on our audits.
We conducted our audits in accordance with the standards of the Public Company Accounting Oversight Board (United States). Those standards require that we plan and perform the audit to obtain reasonable assurance about whether the consolidated financial statements are free of material misstatement. We were not engaged to perform an audit of the Company’s internal control over financial reporting. Our audit included consideration of internal control over financial reporting as a basis for designing audit procedures that are appropriate in the circumstances, but not for the purpose of expressing an opinion on the effectiveness of the Company’s internal control over financial reporting. Accordingly, we express no such opinion. An audit also includes examining, on a test basis, evidence supporting the amounts and disclosures in the financial statements, assessing the accounting principles used and significant estimates made by management, as well as evaluating the overall financial statement presentation. We believe that our audits provide a reasonable basis for our opinion.
In our opinion, the consolidated financial statements referred to above present fairly, in all material respects, the financial position of Luna Innovations Incorporated and subsidiaries as of December 31, 2013 and 2012, and the results of their operations and their cash flows for each of the three years in the period ended December 31, 2013, in conformity with accounting principles generally accepted in the United States of America. Also in our opinion, the related financial statement schedule, when considered in relation to the basic financial consolidated statements taken as a whole, present fairly, in all material respects, the information set forth therein.

/s/ GRANT THORNTON LLP
McLean, Virginia
April 10, 2014 

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CONSOLIDATED BALANCE SHEETS

 	 	 	 	 	 	 	 	
 	December 31, 2012	 	December 31, 2013	
Assets	 	 	 	
Current assets;	 	 	 	
Cash and cash equivalents	$	6,340,461	
 	 	$	7,778,541	
 	
Accounts receivable, net	7,059,635	
 	 	5,408,281	
 	
Inventory, net	3,336,916	
 	 	3,346,177	
 	
Prepaid expenses	667,773	
 	 	708,974	
 	
Other current assets	35,629	
 	 	70,208	
 	
Total current assets	17,440,414	
 	 	17,312,181	
 	
Property and equipment, net	2,426,638	
 	 	2,060,709	
 	
Intangible assets, net	437,839	
 	 	288,475	
 	
Other assets	152,877	
 	 	42,710	
 	
Total assets	$	20,457,768	
 	 	$	19,704,075	
 	
Liabilities and stockholders’ equity	 	 	 	
Current Liabilities;	 	 	 	
Current portion of long term debt obligation	1,500,000	
 	 	1,500,000	
 	
Current portion of capital lease obligation	54,091	
 	 	66,617	
 	
Accounts payable	1,797,571	
 	 	1,401,764	
 	
Accrued compensation	1,648,064	
 	 	2,205,612	
 	
Accrued liabilities	863,214	
 	 	1,219,650	
 	
Accrued liabilities - other	235,897	
 	 	121,323	
 	
Deferred credits	832,822	
 	 	691,424	
 	
Total current liabilities	6,931,659	
 	 	7,206,390	
 	
Long-term debt obligation	2,125,000	
 	 	625,000	
 	
Long-term capital lease obligation	128,917	
 	 	110,307	
 	
Total liabilities	9,185,576	
 	 	7,941,697	
 	
Commitments and contingencies	

Stockholders’ equity;	 	 	 	
Preferred stock, par value $0.001, 1,321,514 shares authorized, issued and outstanding at December 31, 2012 and 2013, respectively	1,322	
 	 	1,322	
 	
Common stock, par value $0.001, 100,000,000 shares authorized, 14,009,280 and 14,527,335 shares issued and outstanding at December 31, 2012 and 2013, respectively	14,245	
 	 	14,842	
 	
Additional paid-in capital	61,361,505	
 	 	62,756,571	
 	
Accumulated deficit	(50,104,880	)	 	(51,010,357	)	
Total stockholders’ equity	11,272,192	
 	 	11,762,378	
 	
Total liabilities and stockholders’ equity	20,457,768	
 	 	19,704,075	

The accompanying notes are an integral part of these consolidated financial statements.

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CONSOLIDATED STATEMENTS OF OPERATIONS

 	 	 	 	 	 	 	 	 	 	 	 	
 	Years ended December 31,	
 	2011	 	2012	 	2013	
Revenues:	 	 	 	 	 	
Technology development revenues	$	15,586,123	
 	 	$	15,126,834	
 	 	$	11,421,868	
 	
Products and licensing revenues	13,195,822	
 	 	11,250,717	
 	 	10,624,350	
 	
Total revenues	28,781,945	
 	 	26,377,551	
 	 	22,046,218	
 	
Cost of revenues:	 	 	 	 	
 	
Technology development costs	11,482,856	
 	 	10,749,335	
 	 	8,882,071	
 	
Products and licensing costs	6,589,943	
 	 	5,242,043	
 	 	5,182,633	
 	
Total cost of revenues	18,072,799	
 	 	15,991,378	
 	 	14,064,704	
 	
Gross profit	10,709,146	
 	 	10,386,173	
 	 	7,981,514	
 	
Operating expense:	 	 	 	 	
 	
Selling, general & administrative	11,283,139	
 	 	10,249,444	
 	 	10,970,775	
 	
Research, development, and engineering	2,273,886	
 	 	2,512,840	
 	 	2,721,229	
 	
Total operating expense	13,557,025	
 	 	12,762,284	
 	 	13,692,004	
 	
Operating loss	(2,847,879	)	 	(2,376,111	)	 	(5,710,490	)	
Other income (expense):	 	 	 	 	
 	
Other income, net	227,565	
 	 	108,061	
 	 	347,062	
 	
Interest (expense), net	(387,587	)	 	(312,372	)	 	(207,538	)	
Total other (expense) income	(160,022	)	 	(204,311	)	 	139,524	
 	
Loss from continuing operations before income taxes	(3,007,901	)	 	(2,580,422	)	 	(5,570,966	)	
Income tax benefit	(478,940	)	 	(440,758	)	 	(1,453,637	)	
Loss from continuing operations, net	(2,528,961	)	 	(2,139,664	)	 	(4,117,329	)	
Income from discontinued operations, net of income taxes	1,136,601	
 	 	755,279	
 	 	3,314,179	
 	
Net loss	(1,392,360	)	 	(1,384,385	)	 	(803,150	)	
Preferred stock dividend	127,462	
 	 	119,754	
 	 	102,327	
 	
Net loss attributable to common stockholders	$	(1,519,822	)	 	$	(1,504,139	)	 	$	(905,477	)	
Net loss per share from continuing operations:	 	 	 	 	
 	
Basic	$	(0.19	)	 	$	(0.15	)	 	$	(0.29	)	
Diluted	$	(0.19	)	 	$	(0.15	)	 	$	(0.29	)	
Net income per share from discontinued operations:	 	 	 	 	
 	
Basic	$	0.08	
 	 	$	0.05	
 	 	$	0.23	
 	
Diluted	$	0.07	
 	 	$	0.05	
 	 	$	0.20	
 	
Net loss per share attributable to common stockholders:	 	 	 	 	
 	
Basic	$	(0.11	)	 	$	(0.11	)	 	$	(0.06	)	
Diluted	$	(0.11	)	 	$	(0.11	)	 	$	(0.06	)	
Weighted average shares:	 	 	 	 	
 	
Basic	13,647,555	
 	 	13,930,267	
 	 	14,336,135	
 	
Diluted	15,876,471	
 	 	16,312,048	
 	 	16,621,927	

The accompanying notes are an integral part of these consolidated financial statements.

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CONSOLIDATED STATEMENTS OF CHANGES IN STOCKHOLDERS’ EQUITY (DEFICIT)

 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	
 	Preferred Stock	 	Common Stock	 	Additional
Paid in
Capital	 	Accumulated
Deficit	 	Total	
 	Shares	 	$	 	Shares	 	$	 	 	 	 	 	 	
January 1, 2011	1,321,514	
 	 	1,322	
 	 	13,449,345	
 	 	$	13,526	
 	 	$	56,681,756	
 	 	$	(47,080,919	)	 	$	9,615,685	
 	
Exercise of stock options and warrants	—	
 	 	—	
 	 	249,388	
 	 	249	
 	 	219,327	
 	 	—	
 	 	219,576	
 	
Stock-based compensation	—	
 	 	—	
 	 	51,648	
 	 	52	
 	 	2,163,238	
 	 	—	
 	 	2,163,290	
 	
Stock dividends (1)	—	
 	 	—	
 	 	—	
 	 	80	
 	 	127,382	
 	 	(127,462	)	 	—	
 	
Issuance of Common Stock, Other (2)	—	
 	 	—	
 	 	62,109	
 	 	62	
 	 	97,813	
 	 	—	
 	 	97,875	
 	
Net loss	—	
 	 	—	
 	 	—	
 	 	—	
 	 	—	
 	 	(1,392,360	)	 	(1,392,360	)	
Balance—December 31, 2011	1,321,514	
 	 	1,322	
 	 	13,812,490	
 	 	13,969	
 	 	59,289,516	
 	 	(48,600,741	)	 	10,704,066	
 	
Exercise of stock options and warrants	—	
 	 	—	
 	 	182,702	
 	 	183	
 	 	69,795	
 	 	—	
 	 	69,978	
 	
Stock-based compensation	—	
 	 	—	
 	 	—	
 	 	—	
 	 	1,862,533	
 	 	—	
 	 	1,862,533	
 	
Stock dividends (1)	—	
 	 	—	
 	 	—	
 	 	79	
 	 	119,675	
 	 	(119,754	)	 	—	
 	
Issuance of Common Stock, Other (2)	—	
 	 	—	
 	 	14,088	
 	 	14	
 	 	19,986	
 	 	—	
 	 	20,000	
 	
Net loss	—	
 	 	—	
 	 	—	
 	 	—	
 	 	—	
 	 	(1,384,385	)	 	(1,384,385	)	
Balance—December 31, 2012	1,321,514	
 	 	1,322	
 	 	14,009,280	
 	 	14,245	
 	 	61,361,505	
 	 	(50,104,880	)	 	11,272,192	
 	
Exercise of stock options and warrants	—	
 	 	—	
 	 	169,277	
 	 	168	
 	 	111,789	
 	 	—	
 	 	111,957	
 	
Stock-based compensation	—	
 	 	—	
 	 	337,500	
 	 	338	
 	 	1,166,041	
 	 	—	
 	 	1,166,379	
 	
Stock dividends (1)	—	
 	 	—	
 	 	—	
 	 	80	
 	 	102,247	
 	 	(102,327	)	 	—	
 	
Issuance of Common Stock, Other (2)	—	
 	 	—	
 	 	11,278	
 	 	11	
 	 	14,989	
 	 	—	
 	 	15,000	
 	
Net loss	—	
 	 	—	
 	 	—	
 	 	—	
 	 	—	
 	 	(803,150	)	 	(803,150	)	
Balance—December 31, 2013	1,321,514	
 	 	$	1,322	
 	 	14,527,335	
 	 	$	14,842	
 	 	$	62,756,571	
 	 	$	(51,010,357	)	 	$	11,762,378	

 	 	
(1)	The stock dividends payable in connection with the Series A Convertible Preferred Stock are issuable upon the request of Carilion.	
 	 	
(2)	Fees paid to our board of directors by issuance of our common stock.	

The accompanying notes are an integral part of these consolidated financial statements.

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CONSOLIDATED STATEMENTS OF CASH FLOWS

 	 	 	 	 	 	 	 	 	 	 	 	
 	2011	 	2012	 	2013	
Cash flows provided by/(used in) operating activities:	 	 	 	 	 	
Net loss	$	(1,392,360	)	 	$	(1,384,385	)	 	$	(803,150	)	
Adjustments to reconcile net loss to net cash provided/(used in) by operating activities:	 	 	 	 	 	
Depreciation and amortization	1,462,511	
 	 	1,092,027	
 	 	935,477	
 	
Stock-based compensation	2,261,165	
 	 	1,882,533	
 	 	1,181,379	
 	
Gain on sale of discontinued operations, net of income taxes	—	
 	 	—	
 	 	(3,391,451	)	
Allowance for doubtful accounts or bad debt expense	—	
 	 	—	
 	 	134,811	
 	
Tax benefit from utilization of loss from current year operations	—	
 	 	—	
 	 	(1,507,791	)	
Changes in operating assets and liabilities:	 	 	 	 	 	
Accounts receivable	1,711,539	
 	 	(1,101,549	)	 	1,533,827	
 	
Inventory	(224,173	)	 	(10,482	)	 	(9,261	)	
Other assets	(321,430	)	 	478,919	
 	 	(79,180	)	
Accounts payable and accrued expenses	(288,989	)	 	(724,050	)	 	396,352	
 	
Deferred credits	(119,999	)	 	(629,781	)	 	(178,305	)	
Net cash provided by/(used in) operating activities	3,088,264	
 	 	(396,768	)	 	(1,787,292	)	
Cash flows (used in)/provided by investing activities:	 	 	 	 	 	
Acquisition of property and equipment	(327,704	)	 	(371,390	)	 	(186,956	)	
Intangible property costs	(347,813	)	 	(224,537	)	 	(253,451	)	
Proceeds from sale of discontinued operations, net of fees	—	
 	 	—	
 	 	5,110,855	
 	
Net cash (used in)/provided by investing activities	(675,517	)	 	(595,927	)	 	4,670,448	
 	
Cash flows provided by/(used in) financing activities:	 	 	 	 	 	
Proceeds from debt obligations	6,000,000	
 	 	—	
 	 	—	
 	
Payments on debt obligations	(6,867,393	)	 	(1,625,000	)	 	(1,500,000	)	
Payments on capital lease obligation	(42,383	)	 	(50,949	)	 	(57,033	)	
Proceeds from the exercise of options and warrants	219,576	
 	 	69,978	
 	 	111,957	
 	
Net cash used in financing activities	(690,200	)	 	(1,605,971	)	 	(1,445,076	)	
Net change in cash	1,722,547	
 	 	(2,598,666	)	 	1,438,080	
 	
Cash and cash equivalents—beginning of period	7,216,580	
 	 	8,939,127	
 	 	6,340,461	
 	
Cash and cash equivalents—end of period	$	8,939,127	
 	 	$	6,340,461	
 	 	$	7,778,541	
 	
Supplemental disclosure of cash flow information	 	 	 	 	 	
Cash paid for interest	$	239,521	
 	 	$	297,875	
 	 	$	178,646	
 	
Dividend on preferred stock, 79,292 shares of common stock issuable at each of December 31, 2011, 2012 and 2013	$	127,462	
 	 	$	119,754	
 	 	$	102,327	
 	
Property and equipment financed by capital leases	$	274,145	
 	 	$	—	
 	 	$	—	
 	
Cash paid for income taxes	$	10,307	
 	 	$	21,618	
 	 	$	14,010	

The accompanying notes are an integral part of these consolidated financial statements.

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NOTES TO CONSOLIDATED FINANCIAL STATEMENTS
 
1.    Organization and Summary of Significant Accounting Policies
Luna Innovations Incorporated (“We” or “the Company”), headquartered in Roanoke, Virginia was incorporated in the Commonwealth of Virginia in 1990 and reincorporated in the State of Delaware in April 2003.
We develop, manufacture and market fiber optic sensing and test & measurement products focused on bringing new and innovative technology solutions to measure, monitor, protect and improve critical processes in the aerospace, automotive, energy, composite, telecommunications and defense industries. Our business model is designed to accelerate the process of bringing new and innovative products to market. We use our in-house technical expertise to perform applied research services on government-funded projects across a range of technologies and also for corporate customers in the fiber optic sensing area. We are organized into two business segments: our Technology Development segment and our Products and Licensing segment. Our Technology Development segment performs applied research principally on government-funded projects. Most of the government funding in our Technology Development segment is derived from the U.S. Government’s Small Business Innovation Research, or SBIR, program coordinated by the U.S. Small Business Administration, or SBA. Our Products and Licensing segment focuses on fiber optic test and measurement, sensing, and instrumentation products and also conducts applied research in the fiber optic sensing area to corporate and government customers. The Products and Licensing segment also includes healthcare products.
We have a history of net losses and negative cash flow from operations with the exception of 2011. We have historically managed our liquidity through cost reduction initiatives, debt financings and capital markets transactions.
Since 2008, the increased turmoil in the U.S. and global capital markets and a global slowdown of economic growth created a substantially more difficult business environment. Additionally, during 2013 spending levels for certain government programs were subject to reduction. Our ability to access the capital markets is expected to be extremely limited. Economic and market conditions may not improve significantly during 2014 and could get worse.
Although there can be no guarantees, we believe that our current cash balance, including the proceeds from the sale of our medical shape sensing business to Intuitive in January 2014 described in Note 15, our cash flow from operations, and the funds available to us under the Credit Facility described in Note 3 below, provide adequate liquidity for us to meet our working capital needs through 2014.
Consolidation Policy
Our consolidated financial statements are prepared in accordance with accounting principles generally accepted in the United States, or GAAP and include the accounts of the Company and its wholly owned subsidiaries. We eliminate from our financial results all significant intercompany transactions. We do not have any investments in entities we believe are variable interest entities for which the Company is the primary beneficiary.
Preferred Stock Issued to Carilion Clinic
In January 2010, we entered into a transaction with Carilion Clinic (“Carilion”), in which Carilion agreed to exchange all of its Senior Convertible Promissory Notes in the principal amount of $5.0 million plus all accrued but unpaid interest, totaling $1.2 million, for (i) 1,321,514 shares of our newly designated Series A Convertible Preferred Stock and (ii) an additional warrant to purchase 356,000 shares of our common stock at an exercise price of $2.50 per share. This warrant is exercisable until December 31, 2020. We also agreed to reduce the exercise price of Carilion’s prior common stock warrant from $7.98 to $2.50 per share and to extend its expiration date to December 31, 2020. The Series A Convertible Preferred Stock carries a dividend of 6% payable in shares of common stock and maintains a liquidation preference up to $6.2 million. As of December 31, 2013, a cumulative total of 314,525 shares of common stock were issuable to Carilion, on their demand, as dividends and have been recorded in the statement of stockholders’ equity. Each share of Series A Convertible Preferred Stock may be converted into one share of our common stock at the option of the holder. We recorded the fair value of the Series A Convertible Preferred Stock, determined based upon the conversion value immediately prior to the exchange, the fair value of the new warrant issued, determined using the Black-Scholes valuation model, and the incremental fair value of the prior warrant due to the re-pricing and extension of expiration to stockholders’ equity.
Use of Estimates
The preparation of our consolidated financial statements in accordance with GAAP requires us to make estimates and assumptions that affect the reported amounts of assets, liabilities, revenues and expenses and the disclosure of contingent assets and liabilities in our consolidated financial statements and accompanying notes.

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Although these estimates are based on our knowledge of current events and actions we may undertake in the future, actual results may differ from such estimates and assumptions.
Technology Development Revenues
We perform research and development for U.S. government agencies, educational institutions and commercial organizations. We recognize revenues under research contracts when a contract has been executed, the contract price is fixed and determinable, delivery of services or products has occurred and collection of the contract price is considered reasonably assured. Revenue is earned under cost reimbursable, time and materials and fixed price contracts. Direct contract costs are expensed as incurred.
Under cost reimbursable contracts, we are reimbursed for costs that are determined to be reasonable, allowable and allocable to the contract and are paid a fixed fee representing the profit negotiated between us and the contracting agency. Revenue from cost reimbursable contracts is recognized as costs are incurred plus a portion of the fee earned. Revenue from time and materials contracts is recognized based on direct labor hours expended at contract billing rates plus other billable direct costs.
Revenue from fixed price research contracts that involve the delivery of services and a prototype model is recognized under the percentage of completion method. Fixed price arrangements that involve the delivery of research reports are recognized under the proportional performance method based upon the ratio of costs incurred to achieve contract milestones to total estimated cost as this method more accurately measures performance under these arrangements. Losses on contracts, if any, are recognized in the period in which they become known.
Intellectual Property License Revenues
Amounts received from third parties for licenses to our intellectual property are recognized when earned under the terms of the agreements. Revenues are recognized upon transfer of the license unless we have continuing obligations for which fair value cannot be established, in which case the revenues are recognized over the period of the obligation. If there are extended payment terms, license fee revenues are recognized as these payments become due and collection is reasonably assured. We consider all arrangements with payment terms extending beyond 12 months not to be fixed and determinable.
Certain of our license arrangements have also required us to enter into research and development agreements. Accordingly, we allocate our arrangement fees to the various elements based upon objective reliable evidence of fair value, if available. For those arrangements in which evidence of fair value is not available, we defer revenues from any up-front payments and recognize them over the service period in the arrangement. Certain of these arrangements also include the payment of performance bonuses based upon the achievement of specific milestones. Generally, there are no assurances at the onset of these arrangements that the milestones will be achieved. As such, fees related to such milestones are excluded from the initial allocation of the arrangement fee and are recognized upon achievement of the milestone provided that all other revenue recognition criteria are met.
Product Sales Revenues
Revenues from product sales are generated by the sale of commercial products and services under various sales programs to the end user and through distribution channels. We sell fiber optic sensing systems to end users for use in numerous fiber optic based measurement applications. Revenues are recorded net of applicable sales taxes collected from customers and payable to state or local governmental entities.
We recognize revenue relating to our products when persuasive evidence of an arrangement exists, delivery has occurred, the selling price is fixed or determinable and collectability of the resulting receivable is reasonably assured.
For multi-element arrangements that include tangible products that contain software that is essential to the tangible product’s functionality, we allocate revenue to all deliverables based on their relative selling prices. Other deliverables include extended warranty, training and various add-on products. In such circumstances, we use a hierarchy to determine the selling price to be used for allocating revenue to deliverables: (i) vendor-specific objective evidence of fair value or VSOE, (ii) third-party evidence of selling price or TPE, and (iii) best estimate of the selling price or ESP. VSOE generally exists only when we sell the deliverable separately and is the price actually charged by us for that deliverable. ESPs reflect our best estimates of what the selling prices of elements would be if they were sold regularly on a stand-alone basis.
Our process for determining our ESP for deliverables without VSOE or TPE considers multiple factors that may vary depending upon the unique facts and circumstances related to each deliverable. Key factors considered in developing the ESPs include prices charged by us for similar offerings, our historical pricing practices, the nature of the deliverables, and the relative

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ESP of all of the deliverables as compared to the total selling price of the product. We may also consider, when appropriate, the impact of other products and services on selling price assumptions when developing and reviewing our ESPs.
Revenues from product sales that require no ongoing obligations are recognized as revenues when shipped to the customer, title has passed and collection is reasonably assured. In transactions in which a right-of-return exists, revenues are deferred until acceptance has occurred and the period for the right-of-return has lapsed.
Allowance for Uncollectible Receivables
Accounts receivable are recorded at their face amount, less an allowance for doubtful accounts. We review the status of our uncollected receivables on a regular basis. In determining the need for an allowance for uncollectible receivables, we consider our customers’ financial stability, past payment history and other factors that bear on the ultimate collection of such amounts. The allowance was $0 at December 31, 2012 and approximately $134,811 at December 31, 2013.
Cash Equivalents
We consider all highly liquid investments purchased with maturities of three months or less to be cash equivalents. To date, we have not incurred losses related to cash and cash equivalents. The Company regularly maintains cash balances with financial institutions which exceed Federal Deposit Insurance Corporation (“FDIC”) insurance limits. At December 31, 2013 and December 31, 2012, the Company had approximately $7.5 million and $6.1 million, respectively, in excess of FDIC insured limits.

Fair Value Measurements
The Company’s financial assets and liabilities are measured at fair value, which is defined as the price that would be received to sell an asset, or paid to transfer a liability, in an orderly transaction between market participants. Valuation techniques are based on observable or unobservable inputs. Observable inputs reflect market data obtained from independent sources, while unobservable inputs reflect the Company’s market assumptions. These two types of inputs have created the following fair value hierarchy:
 	 	
•	Level 1—Quoted prices for identical instruments in active markets.	
 	 	
•	Level 2—Quoted prices for similar instruments in active markets; quoted prices for identical or similar instruments in markets that are not active; and model-derived valuations in which significant value drivers are observable.	
 	 	
•	Level 3—Valuations derived from valuation techniques in which significant value drivers are unobservable.	
The carrying values of cash and cash equivalents, accounts receivable and accounts payable approximate fair value because of the short-term nature of these instruments. The carrying value of the promissory notes approximate fair value as the interest rate is comparable to the interest rate on our credit facility with Silicon Valley Bank, which we consider to be at market.
Property and Equipment
Property and equipment are stated at cost less accumulated depreciation. We record depreciation using the straight-line method over the following estimated useful lives:

Equipment	3 – 7 years	
Furniture and fixtures	7 years	
Software	3 years	
Leasehold improvements	Lesser of lease term or life of improvements	
Intangible Assets
Intangible assets consist of patents related to certain intellectual property that we have developed or acquired. We amortize our patents over their estimated useful life of five years, and analyze them whenever events or circumstances indicate that the carrying amount may not be recoverable to determine whether their carrying value has been impaired.
Research, Development and Engineering

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Research, development and engineering expenses not related to contract performance are expensed as incurred. We expensed $2.3 million, $2.5 million and $2.7 million of non-contract related research, development and engineering expenses for the years ended December 31, 2011, 2012 and 2013, respectively.
Valuation of Long-Lived Assets
We review our long-lived assets for impairment whenever events or changes in circumstances indicate that the carrying amount of an asset may not be recoverable. Recoverability of assets is measured by comparing the carrying amount of an asset to future undiscounted net cash flows expected to be generated by the asset. If such assets are considered to be impaired, the impairment to be recognized is measured by the amount by which the carrying amount of the assets exceeds their fair value. Assets to be disposed of by sale are reflected at the lower of their carrying amount or fair value less cost to sell.
Inventory
Inventory consists of finished goods, work in process and parts valued at the lower of cost (determined on the first-in, first-out basis) or market. We provide reserves for estimated obsolescence or unmarketable inventory equal to the difference between the carrying value of the inventory and the estimated market value based upon assumptions about future demand and market conditions.
Net Loss per Share
Basic per share data is computed by dividing net loss attributable to common stockholders by the weighted average number of shares outstanding during the period. Diluted per share data is computed by dividing net loss attributable to common stockholders by the weighted average shares outstanding during the period increased to include, if dilutive, the number of additional common share equivalents that would have been outstanding if potential common shares had been issued using the treasury stock method. Diluted per share data would also include the potential common share equivalents relating to convertible securities by application of the if-converted method.
The effect of 2.2 million, 2.4 million and 2.3 million common stock equivalents (which include outstanding warrants and stock options) are not included for the years ended December 31, 2011, 2012 and 2013 respectively, as they are antidilutive to earnings per share, due to Company being in a loss position.
Stock-Based Compensation
We have a stock-based compensation plan, which is described further in Note 8. We recognize compensation expense based upon the fair value of the underlying equity award as of the date of grant. The Company has elected to use the Black-Scholes option pricing model to value any awards granted. We amortize stock-based compensation for such awards on a straight-line method over the requisite service period of the awards taking into account the effects of the employees’ expected exercise and post-vesting employment termination behavior.
The Company recognizes expense for equity instruments issued to non-employees based upon the fair value of the equity instruments issued.
The fair value of each option granted is estimated as of the grant date using the Black-Scholes option pricing model with the following assumptions:

 	2011	 	2012	 	2013	
Risk-free interest rate range	1.48% – 2.81%	 	1.02% – 1.49%	 	1.27% – 2.34%	
Expected life of option-years	7.5	 	7.5	 	7.5	
Expected stock price volatility	111%	 	108%	 	108%	
Executive turnover rates	33.3%	 	—%	 	—%	
Non-executive turnover rates	17.7%	 	18.5%	 	14.7%	
Expected dividend yield	—	 	—	 	—	
The risk-free interest rate is based on U.S. Treasury interest rates, the terms of which are consistent with the expected life of the stock options. Expected volatility is based upon the average volatility of our common stock. The expected life and estimated post-employment termination behavior is based upon historical experience of homogeneous groups, executives and non-executes, within our company. We do not currently issue dividends nor do we expect to in the foreseeable future.

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Advertising
We expense the cost of advertising as incurred. Historically such amounts have not been significant to our operations.
Income Taxes
We account for income taxes using the liability method. Deferred tax assets or liabilities are determined based on the difference between the financial statement and tax basis of assets and liabilities as measured by the enacted tax rates which will be in effect when the differences reverse. A valuation allowance against net deferred tax assets is provided unless we conclude it is more likely than not that the deferred tax assets will be realized.
We recognize tax benefits from an uncertain tax position only if it is more likely than not that the tax position will be sustained on examination by taxing authorities.

2.    Inventory
Inventory consists of finished goods, work-in-process and parts valued at the lower of cost (determined on the first-in, first-out basis) or market. We provide reserves for estimated obsolescence or unmarketable inventory equal to the difference between the cost of the inventory and the estimated market value based upon assumptions about future demand and market conditions.
Components of inventory are as follows:

 	December 31, 2012	 	December 31, 2013	
Finished goods	$	195,578	
 	 	$	719,574	
 	
Work-in-process	252,227	
 	 	361,754	
 	
Parts	2,975,297	
 	 	2,339,595	
 	
 	3,423,102	
 	 	3,420,923	
 	
Less: Inventory reserves	86,186	
 	 	74,746	
 	
Total inventory, net	$	3,336,916	
 	 	$	3,346,177	

3.    Debt
Silicon Valley Bank Facility
We currently have a Loan and Security Agreement with Silicon Valley Bank (“SVB”) under which we have a term loan with an original borrowing amount of $6.0 million (the “Term Loan”). The Term Loan is to be repaid by us in 48 monthly installments, plus accrued interest payable monthly in arrears, and unless earlier terminated, matures on the earlier of either May 1, 2015 or an event of a default under the loan agreement. The term loan carries a floating annual interest rate equal to SVB’s prime rate then in effect plus 2%. We may repay amounts due under the Term Loan at any time with no penalties.
In addition to the terms and conditions of the Term Loan, we also have a revolving credit facility (the “Line of Credit” and together with the Term Loan, the “Credit Facilities”) with a maximum borrowing capacity of $1.0 million. The interest rate on the Line of Credit is SVB’s prime rate plus 1.25%, payable monthly in arrears, and we are required to pay an unused Line of Credit fee of one-quarter of one percent (0.25%), payable monthly. We may terminate the Line of Credit for a termination fee of $10,000, which fee would not be payable in the event that the Line of Credit is replaced by another loan facility with SVB. The Line of Credit has a maturity date of May 18, 2014.
Amounts due under the Credit Facilities are secured by substantially all of our assets, including intellectual property, personal property and bank accounts.
On March 21, 2013, we entered into a Fourth Loan Modification Agreement with SVB that replaced the existing financial covenants with a single covenant that we maintain a minimum cash balance of $5.0 million with SVB. Effective on January 21, 2014, in connection with our sale of assets to Intuitive, this covenant was modified to reduce the required minimum cash balance to $3.5 million. The Credit Facilities also require us to observe a number of operational covenants, including protection and registration of intellectual property rights, and certain customary negative covenants. As of December 31, 2013, we were in compliance with all covenants under the Credit Facilities.

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In addition, the Credit Facilities contain customary events of default, including nonpayment of principal, interest or other amounts, violation of covenants, material adverse change, an event of default under any subordinated debt documents, incorrectness of representations and warranties in any material respect, bankruptcy, judgments in excess of a threshold amount, and violations of other agreements in excess of a threshold amount. If any event of default occurs SVB may declare due immediately all borrowings under the Credit Facilities and foreclose on the collateral. Furthermore, an event of default under the Credit Facilities would result in an increase in the interest rate on any amounts outstanding. As of December 31, 2013, there were no events of default on our Credit Facilities.
The balance under the Term Loan at December 31, 2013 was $2.1 million of which $0.6 million was classified as long-term and $1.5 million was classified as short-term. No amounts were outstanding under the Line of Credit and the available credit capacity was $1.0 million at December 31, 2013. The effective rate of our Term Loan at December 31, 2013 was 6%.
Note Payable to Hansen (the “Hansen Note”)
In January 2010, we issued a promissory note to Hansen in the principal amount of $5.0 million, payable in 16 quarterly installments beginning in April 2010. The Hansen Note bore interest at a fixed rate of 8.5% and was secured by substantially all of our assets. The Hansen Note was subordinated to our primary bank credit facility. In 2011, we and Hansen entered into an Amendment to Secured Promissory Note and Payoff Letter (the “Payoff Letter”).
Under the terms of the Payoff Letter, we and Hansen agreed upon a final payoff in the amount of approximately $3.0 million as payment in full for all principal and accrued interest under the Hansen Note, which represented a $190,000 discount from the then outstanding balance, which discount was amortized into income over the remaining life of the Company’s Development and Supply Agreement with Hansen. At December 31, 2013 we had completely amortized this discount. On May 23, 2011, we repaid the Hansen Note in full. Upon receipt of this final payment, all security interests in our assets held by Hansen as collateral for our obligations under the Hansen Note were terminated and released.
The following table presents a summary of debt outstanding as of December 31, 2012 and 2013:

 	December 31,	
 	2012	 	2013	
Silicon Valley Bank Term Loan	$	3,625,000	
 	 	$	2,125,000	
 	
Less: current portion	1,500,000	
 	 	1,500,000	
 	
Total long-term debt	$	2,125,000	
 	 	$	625,000	
 	
Maturities on long-term debt are as follows:

Year	Amount	
2014	1,500,000	
 	
2015	625,000	
 	
Total	$	2,125,000	
 	
Costs associated with loans outstanding were as follows:

 	Years Ended December 31,	
 	2011	 	2012	 	2013	
Interest expense	$	377,096	
 	 	$	286,529	
 	 	$	189,151	
 	
Amortization of transaction costs	10,491	
 	 	25,843	
 	 	18,387	
 	
Total interest expense	$	387,587	
 	 	$	312,372	
 	 	$	207,538	

4.    Accounts Receivable—Trade
Accounts receivable consist of the following:

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 	December 31,	
 	2012	 	2013	
Billed	$	5,175,395	
 	 	$	3,552,184	
 	
Unbilled	1,873,376	
 	 	1,755,439	
 	
Other	10,864	
 	 	235,469	
 	
 	$	7,059,635	
 	 	$	5,543,092	
 	
Less: allowance for doubtful accounts	—	
 	 	(134,811	)	
 	$	7,059,635	
 	 	$	5,408,281	
 	
Unbilled receivables result from contract retainages and revenues that have been earned in advance of billing and can be invoiced at contractually defined intervals, milestones, or at completion of the contract.
Unbilled amounts are expected to be billed in future periods and are classified as current assets in accordance with industry practice.

5.    Property and Equipment
Property and equipment, net, consists of the following at:

 	December 31,	
 	2012	 	2013	
Building	$	69,556	
 	 	$	69,556	
 	
Equipment	7,222,208	
 	 	7,239,017	
 	
Furniture and fixtures	622,944	
 	 	562,485	
 	
Software	1,185,290	
 	 	1,092,484	
 	
Leasehold improvements	3,196,590	
 	 	3,168,377	
 	
 	12,296,588	
 	 	12,131,919	
 	
Less—accumulated depreciation	(9,869,950	)	 	(10,071,210	)	
 	$	2,426,638	
 	 	$	2,060,709	
 	
Depreciation for the years ended December 31, 2011, 2012 and 2013 was approximately $1.0 million, $0.8 million and $0.5 million, respectively.
 
6.    Intangible Assets
The following is a summary of intangible assets:

 	December 31,	
 	2012	 	2013	
Patent costs	$	2,264,441	
 	 	$	2,496,560	
 	
Accumulated amortization	(1,826,602	)	 	(2,208,085	)	
 	$	437,839	
 	 	$	288,475	
 	
Amortization for the years ended December 31, 2011, 2012 and 2013 was approximately $0.5 million, $0.3 million and $0.4 million, respectively. Estimated aggregate amortization, based on the net value of intangible assets at December 31, 2013, for each of the next five years is as follows:

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Year Ending December 31,	 	
2014	188,616	
 	
2015	53,371	
 	
2016	24,844	
 	
2017	10,578	
 	
2018	6,013	

 	$	283,422	

7.    Income Taxes
Deferred tax assets and liabilities consist of the following components:

 	2012	 	2013	
 	Current	 	Long-Term	 	Current	 	Long-Term	
Bad debt and inventory reserve	$	41,243	
 	 	$	—	
 	 	$	88,077	
 	 	$	—	
 	
Deferred revenue	—	
 	 	—	
 	 	—	
 	 	59,673	
 	
Depreciation and amortization	—	
 	 	1,005,697	
 	 	—	
 	 	1,024,784	
 	
Net operating loss carryforwards	—	
 	 	11,358,044	
 	 	—	
 	 	10,896,286	
 	
Research and development credits	—	
 	 	386,161	
 	 	—	
 	 	386,161	
 	
Accrued liabilities	731,831	
 	 	—	
 	 	836,011	
 	 	—	
 	
Deferred compensation	—	
 	 	123,797	
 	 	—	
 	 	163,655	
 	
Stock-based compensation	—	
 	 	1,208,970	
 	 	—	
 	 	1,519,513	
 	
AMT credit	—	
 	 	28,555	
 	 	—	
 	 	42,711	
 	
Total	773,074	
 	 	14,111,224	
 	 	924,088	
 	 	14,092,783	
 	
Valuation allowance	(773,074	)	 	(14,111,224	)	 	(924,088	)	 	(14,092,783	)	
Net deferred tax asset	$	—	
 	 	$	—	
 	 	$	—	
 	 	$	—	
 	
The reconciliation of expected income tax benefit (expense) to actual income tax expense benefit (expense) was as follows:

 	2011	 	2012	 	2013	
Statutory federal rate	34.00	 %	 	34.00	 %	 	34.00	 %	
State tax net of federal benefit	3.96	 %	 	3.73	 %	 	3.96	 %	
Change in valuation allowance	2.79	 %	 	(4.16	)%	 	(16.88	)%	
Incentive stock options	(35.85	)%	 	(35.60	)%	 	(41.60	)%	
Provision to return adjustments	(3.44	)%	 	(1.80	)%	 	24.11	 %	
Meals and entertainment	(0.54	)%	 	(0.74	)%	 	(1.33	)%	
Other Permanent differences	(1.67	)%	 	(0.60	)%	 	(4.37	)%	
Income tax (expense)	(0.75	)%	 	(5.17	)%	 	(2.11	)%	
The income tax expense consists of the following for:

 	2011	 	2012	 	2013	
Current:	 	 	 	 	 	
Federal	$	10,307	
 	 	$	18,268	
 	 	$	14,071	
 	
State	—	
 	 	3,149	
 	 	—	
 	
Deferred Federal	—	
 	 	—	
 	 	—	
 	
Deferred State	—	
 	 	—	
 	 	—	
 	
Income tax expense	$	10,307	
 	 	$	21,417	
 	 	$	14,071	

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The realization of our deferred income tax assets is dependent upon sufficient taxable income in future periods. In assessing whether deferred tax assets may be realized, we consider whether it is more likely than not that some portion, or all, of the deferred tax asset will be realized. We consider scheduled reversals of deferred tax liabilities, projected future taxable income and tax planning strategies that we can implement in making our assessment. We have net operating loss carryforwards at December 31, 2013 of approximately $28.7 million expiring at varying dates through 2025. We have research and development tax credit carryforwards at December 31, 2013 of approximately $0.4 million, which expire at varying dates through 2024.
We have undertaken a formal section 382 study and determined that we do not have a limitation on our net operating loss available to offset income.
The U.S. federal statute of limitations remains open for the year 2005 and onward. We currently have no federal income tax returns under examination. U.S. state jurisdictions have statutes of limitation generally ranging from three to seven years. We currently have no state income or franchise tax returns under examination. We currently do not file tax returns in any foreign tax jurisdiction.
We currently have no positions for which we expect that the amount of unrecognized tax benefit will increase or decrease significantly within twelve months of the reporting date. We have no tax interest or penalties reported in either our statement of operations or statement of financial position for any year reported herein. Management believes it is not more likely than not that the deferred tax assets at December 31, 2012 or December 31, 2013 will be realized, and therefore a valuation allowance was established against all such deferred tax assets.
We are evaluating the potential impact of the final Treasury regulations released on September 13, 2013 concerning amounts paid to acquire, produce or improve tangible property and recovery of basis upon disposition. We are determining whether or not any changes in accounting method will be required and if they will result in a material impact to our financial statements. At this time, we do not anticipate there being a material impact.
Windfall equity-based compensation deductions are tracked, but will not be recorded to the balance sheet until management determines more likely than not that such amounts will be utilized. As of December 31, 2013, the Company had approximately $165,000 of windfall stock compensation deductions. If and when realized, the tax benefit associated with these deductions will be credited to additional paid-in capital. These excess benefit deductions are included in the total federal net operating losses disclosed above.

8.    Stockholders’ Equity
Series A Convertible Preferred Stock
In January 2010, we entered into a transaction with Carilion, in which Carilion agreed to exchange all of its Senior Convertible Promissory Notes in the principal amount of $5.0 million plus all accrued but unpaid interest, totaling $1.2 million, for 1,321,514 shares of our newly designated Series A Convertible Preferred Stock. The Series A Convertible Preferred Stock is non-voting, carries a dividend of 6% payable in shares of common stock and maintains a liquidation preference up to $6.2 million. As of December 31, 2013, 314,525 shares of common stock were issuable to Carilion as dividends and have been recorded in the statement of stockholders’ equity. These dividends are issuable on demand. Each share of Series A Convertible Preferred Stock may be converted into one share of our common stock at the option of the holder. We recorded the fair value of the Series A Convertible Preferred Stock, determined based upon the conversion value immediately prior to the exchange, the fair value of the new warrant issued to Carilion (as described below), determined using the Black-Scholes valuation model, and the incremental fair value of the prior warrant due to the re-pricing (as described below) and extension of maturity to stockholders’ equity.
Hansen Warrant
In January 2010, we issued 1,247,330 shares of common stock to Hansen, representing 9.9% of our common stock then outstanding. In addition, we issued to Hansen a warrant entitling Hansen to purchase a number of shares of our common stock as necessary for Hansen to maintain a 9.9% ownership interest in our common stock, at an exercise price of $0.01 per share. During 2011, Hansen exercised warrants acquiring 41,538 shares of our common stock. During 2012, Hansen did not exercise any of its outstanding warrants. During 2013, Hansen exercised warrants acquiring an additional 32,180 shares. The warrant expired on January 12, 2013 in accordance with its terms. For the years ended December 31, 2011, 2012 and 2013, we recognized expense of $60,338, $17,190 and $0, respectively, which is included in operating expenses. We recognized expense based upon the fair market value of our stock at the date the shares were issuable, updated quarterly for non-exercised warrants, to Hansen.

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Stock Option Plans
In April 2003, we adopted the Luna Innovations Incorporated 2003 Stock Plan, or the 2003 Plan. Under the 2003 Plan, our Board of Directors was authorized to grant both incentive and non-statutory stock options to our employees, directors and consultants to purchase Class B shares of Common Stock. Options generally had a life of 10 years and exercise price equal to or greater than the fair market value of the Class B Common Stock as determined by the Board of Directors. On February 4, 2006, our Board of Directors increased the number of shares reserved under the 2003 Plan to 9,715,000. There were options outstanding under the 2003 Plan to purchase an aggregate of 945,472 shares as of December 31, 2013. Following the adoption of the 2006 Equity Incentive Plan in January 2006, no shares or options are available for future grant under the 2003 Plan, except to satisfy grants outstanding as of June 5, 2006.
In January 2006, we adopted our 2006 Equity Incentive Plan or the 2006 Plan. Under the 2006 Plan, our Board of Directors is authorized to grant both incentive and non-statutory stock options to purchase common stock and restricted stock awards to our employees, directors, and consultants. Stock option awards generally have a life of 10 years and exercise prices equal to the closing price of our common stock on the date of the option grant. On January 1 of each year, the number of shares available for issuance increases by the lesser of (a) 10% of the outstanding shares of our common stock on the last day of the preceding fiscal year; (b) 1,695,690 shares; or (c) such other amount as our Board of Directors may determine. A total of 8,872,540 and 10,468,175 shares were available for future grant under the 2006 Plan as of December 31, 2012 and 2013, respectively.
Vesting for employees typically occurs over a five-year period.
Total non-cash stock option expense for the years ended December 31, 2011, 2012 and 2013 was $2.2 million, $1.9 million and $1.2 million, respectively.
The following table sets forth the activity of the options to purchase common stock under the 2003 Plan and the 2006 Plan:

 	Options Outstanding	 	Options Exercisable	
 	Number of
Shares	 	Price per
Share Range	 	Weighted
Average
Exercise
Price	 	Aggregate
Intrinsic
Value (1)	 	Number of
Shares	 	Weighted
Average
Exercise
Price	 	Aggregate
Intrinsic
Value (1)	
Balance at January 1, 2011	4,716,439	
 	 	0.35–7.08	 	$	2.35	
 	 	$	1,632,396	
 	 	2,904,435	
 	 	$	2.2	
 	 	$	1,233,778	
 	
Forfeited	(514,883	)	 	0.35–7.08	 	3.48	
 	 	 	 	 	 	 	 	 	
Exercised	(208,117	)	 	0.35–1.77	 	0.72	
 	 	 	 	 	 	 	 	 	
Granted	647,600	
 	 	1.18–2.17	 	1.83	
 	 	 	 	 	 	 	 	 	
Balance at December 31, 2011	4,641,039	
 	 	$0.35–6.74	 	$	2.23	
 	 	$	1,509,270	
 	 	3,206,994	
 	 	$	2.23	
 	 	$	1,258,740	
 	
Forfeited	(64,245	)	 	0.65–5.50	 	1.91	
 	 	 	 	 	 	 	 	 	
Exercised	(182,702	)	 	0.35–1.77	 	0.38	
 	 	 	 	 	 	 	 	 	
Granted	1,028,038	
 	 	1.40–1.75	 	1.67	
 	 	 	 	 	 	 	 	 	
Balance at December 31, 2012	5,422,130	
 	 	$0.35–6.74	 	$	2.19	
 	 	$	639,904	
 	 	3,775,388	
 	 	$	2.37	
 	 	$	604,292	
 	
Forfeited	(693,644	)	 	0.35–6.74	 	2.08	
 	 	 	 	 	 	 	 	 	
Exercised	(137,097	)	 	0.35–1.18	 	0.56	
 	 	 	 	 	 	 	 	 	
Granted	687,840	
 	 	1.20–1.31	 	1.29	
 	 	 	 	 	 	 	 	 	
Balance at December 31, 2013	5,279,229	
 	 	$0.35 - 6.55	 	$	2.11	
 	 	$	784,154	
 	 	4,012,378	
 	 	$	2.28	
 	 	$	697,826	

 	 	
(1)	The intrinsic value of an option represents the amount by which the market value of the stock exceeds the exercise price of the option of in-money options only. The prices represent the closing price of our Common Stock on the NASDAQ Capital Market on the respective dates.	

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 	 	 	Options Outstanding	 	Options Exercisable	
 	Range of
Exercise Prices	 	Options
Outstanding	 	Weighted
Average
Remaining
Life in
Years	 	Weighted
Average
Exercise
Price	 	Options
Exercisable	 	Weighted
Average
Exercise
Price of
Options
Exercisable	
Year ended December 31, 2011	$ 0.35–6.74	 	4,641,039	
 	 	6.60	 	$	2.23	
 	 	3,206,994	
 	 	$	2.23	
 	
Year ended December 31, 2012	$ 0.35–6.74	 	5,422,130	
 	 	6.39	 	$	2.19	
 	 	3,775,388	
 	 	$	2.37	
 	
Year ended December 31, 2013	$0.35 - 6.55	 	5,279,229	
 	 	5.88	 	$	2.11	
 	 	4,012,378	
 	 	$	2.28	

 	
 	 	 	 	 	 	 	 	
 	Total intrinsic value of
options exercised	 	Total fair value of
options vested	
Year ended December 31, 2011	$	216,576	
 	 	$	1,435,186	
 	
Year ended December 31, 2012	$	215,541	
 	 	$	1,170,738	
 	
Year ended December 31, 2013	$	111,595	
 	 	$	1,248,067	
 	
For the years ended December 31, 2011, 2012 and 2013, the weighted average grant date fair value of options granted was $1.62, $1.10 and $1.29, respectively. We estimate the fair value of options at the grant date using the Black-Scholes model.
We recognized $1.2 million in share-based payment expense which is recorded in selling, general and administrative expenses on the Statement of Operations for the year ended December 31, 2013, and we will recognize $1.6 million over the remaining requisite service period. For all options granted through December 31, 2013, the weighted average remaining service period is 1.7 years.

9.    Commitments and Contingencies
Obligation under Operating Leases
We lease facilities in Blacksburg, Charlottesville and Roanoke, Virginia under operating leases that as of December 31, 2013, were scheduled to expire between November 2014 and December 2018. Certain of the leases are subject to fixed escalations and provide for possible termination prior to their expiration dates. We recognize rent expense on such leases on a straight-line basis over the lease term. Rent expense under these leases recorded in our selling, general and administrative expense line on our statement of operations totaled approximately $1.2 million, $1.3 million and $1.0 million, respectively, for the years ended December 31, 2011, 2012 and 2013. During 2013, we subleased a portion of the office space formerly occupied by Secure Computing and Communications group (“SCC”) to Mac-B. The amount of the sublease income recognized in 2013 was approximately $266,000. The sublease continues through April 30, 2014.
We are obligated under operating leases covering certain equipment that expire at various dates during the next two years.
Minimum future rentals, as of December 31, 2013, under the aforementioned operating leases for each of the next five years are:

 	
 	
2014	1,014,131	
 	
2015	503,760	
 	
2016	299,635	
 	
2017	305,628	
 	
2018	311,740	
 	
 	$	2,434,894	

Purchase Commitment
In the fourth quarter of 2013 we executed two non-cancelable purchase orders totaling $1.4 million for multiple shipments of tunable lasers to be delivered over an 18-month period beginning in the fourth quarter of 2013. At December 31, 2013, approximately $1.4 million of this commitment remained.
Royalty Agreement

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We have licensed certain third-party technologies from vendors for which we owe minimum royalties aggregating $1.8 million payable over the remaining patent terms of the underlying technology.
 
10.    Employee Profit Sharing Plan
We maintain a salary reduction/profit-sharing plan under provisions of Section 401(k) of the Internal Revenue Code. The plan is offered to employees who have completed three months of service with us. We contribute 25% of the salary deferral elected by each employee up to a maximum deferral of 10% of annual salary.
We contributed approximately $240,000, $250,000 and $175,000 to the plan for the years ended December 31, 2011, 2012 and 2013, respectively.
 
11.    Litigation and Other Contingencies
From time to time, we may become involved in litigation in relation to claims arising out of our operations in the normal course of business. While management currently believes the amount of ultimate liability, if any, with respect to these actions will not materially affect our financial position, results of operations or liquidity, the ultimate outcome of any litigation is uncertain.
We have made, and will continue to make, efforts to comply with current and future environmental laws. We anticipate that we could incur additional capital and operating costs in the future to comply with existing environmental laws and new requirements arising from new or amended statutes and regulations. In addition, because the applicable regulatory agencies have not yet promulgated final standards for some existing environmental programs, we cannot at this time reasonably estimate the cost for compliance with these additional requirements. The amount of any such compliance costs could be material. We cannot predict the impact that future regulations will impose upon our business.
 
12.    Relationship with Major Customers
During the years ended December 31, 2011, 2012 and 2013, approximately 64%, 67% and 54%, respectively, of our consolidated revenues were attributable to contracts with the U.S. government.
At December 31, 2011, 2012 and 2013, receivables with respect to contracts with the U.S. government represented 40%, 34% and 25% of total billed trade receivables, respectively.
 
13.    Financial Information About Segments
Our operations are divided into two operating segments: Technology Development and Products and Licensing. The Technology Development segment provides applied research to customers in our areas of focus.
Our engineers and scientists collaborate with our network of government, academic and industry experts to identify technologies and ideas with promising market potential. We then compete to win fee-for-service contracts from government agencies and industrial customers who seek innovative solutions to practical problems that require new technology. The Technology Development segment derives its revenue primarily from services.

The Products and Licensing segment develops and sells products or licenses technologies based on commercially viable concepts developed by the Technology Development segment. The Products and Licensing segment derives its revenue from product sales, funded product development and technology licenses.
Our President and Chief Executive Officer and his direct reports collectively represent our chief operating decision makers, and they evaluate segment performance based primarily on revenue and operating income or loss.
Information about the results of operations for each segment is set forth in the table below. There were no significant inter-segment sales during the three years ended December 31, 2013. There was an insignificant amount of product sales made outside the United States during these three years.

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 	Year Ended December 31,	
 	2011	 	2012	 	2013	
Technology Development revenue	$	15,586,123	
 	 	$	15,126,834	
 	 	$	11,421,868	
 	
Products and Licensing revenue	13,195,822	
 	 	11,250,717	
 	 	10,624,350	
 	
Total revenue	28,781,945	
 	 	26,377,551	
 	 	22,046,218	
 	
Technology Development operating loss	(3,210,228	)	 	(1,703,370	)	 	(3,169,605	)	
Products and Licensing operating income (loss)	362,349	
 	 	(672,741	)	 	(2,540,885	)	
Total operating loss	$	(2,847,879	)	 	(2,376,111	)	 	$	(5,710,490	)	
Depreciation, Technology Development	$	619,035	
 	 	$	499,439	
 	 	$	286,894	
 	
Depreciation, Products and Licensing	370,808	
 	 	266,327	
 	 	266,862	
 	
Amortization, Technology Development	295,600	
 	 	212,790	
 	 	197,765	
 	
Amortization, Products and Licensing	177,067	
 	 	113,471	
 	 	183,956	
 	
Additional segment information is as follows:

 	December 31,	
 	2012	 	2013	
Total segment assets:	 	 	 	
Technology Development	$	13,342,725	
 	 	$	10,208,433	
 	
Products and Licensing	7,115,043	
 	 	9,495,642	
 	
Total	$	20,457,768	
 	 	$	19,704,075	
 	
Property plant and equipment and intangible assets, Technology Development	$	1,868,235	
 	 	$	1,217,083	
 	
Property plant and equipment and intangible assets, Products and Licensing	$	996,242	
 	 	$	1,132,101	

14.    Quarterly Results (unaudited)
The following table sets forth our unaudited historical revenues, operating loss and net (loss) income by quarter during 2012 and 2013. The amounts reflected for the loss from continuing operations and income/ loss from discontinued operations for each quarter of 2012 differ insignificantly from the 2012 amounts reported in our Forms 10-Q filed during 2013 due to a reallocation of our total tax expense for the given period between continuing operations and discontinued operations. This reallocation did not impact the total income tax expense recognized in any period nor did it impact the net loss recognized in any period.

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 	Quarter Ended	
(Dollars in thousands,
except per share amounts)	March 31,
2012	 	June 30,
2012	 	September 30,
2012	 	December 31,
2012	 	March 31,
2013	 	June 30,
2013	 	September 30,
2013	 	December 31,
2013	
Revenues:	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	
Technology	$	3,943	
 	 	$	3,895	
 	 	$	3,691	
 	 	$	3,598	
 	 	$	2,627	
 	 	$	2,807	
 	 	$	3,130	
 	 	$	2,858	
 	
Products and licensing	2,714	
 	 	2,846	
 	 	3,156	
 	 	2,535	
 	 	1,870	
 	 	3,166	
 	 	2,588	
 	 	3,000	
 	
Total revenues	6,657	
 	 	6,741	
 	 	6,847	
 	 	6,133	
 	 	4,497	
 	 	5,973	
 	 	5,718	
 	 	5,858	
 	
Gross Margin	2,710	
 	 	3,145	
 	 	2,891	
 	 	2,038	
 	 	1,393	
 	 	2,408	
 	 	2,208	
 	 	1,973	
 	
Operating loss	(632	)	 	(391	)	 	(329	)	 	(1,049	)	 	(1,957	)	 	(917	)	 	(572	)	 	(2,264	)	
Loss from continuing operations, net	(567	)	 	(351	)	 	(330	)	 	(892	)	 	(1,148	)	 	(791	)	 	(484	)	 	(1,694	)	
Income/(loss) from discontinued operations net of income taxes	232	
 	 	109	
 	 	110	
 	 	304	
 	 	3,934	
 	 	(161	)	 	(130	)	 	(329	)	
Net loss	(335	)	 	(242	)	 	(220	)	 	(588	)	 	2,786	
 	 	(952	)	 	(614	)	 	(2,023	)	
Net (loss)/income attributable to common stockholders	$	(369	)	 	$	(269	)	 	$	(254	)	 	$	(612	)	 	$	2,762	
 	 	$	(978	)	 	$	(640	)	 	$	(2,049	)	
Net loss per share from continuing operations:	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	
Basic	$	(0.04	)	 	$	(0.03	)	 	$	(0.02	)	 	$	(0.06	)	 	$	(0.08	)	 	$	(0.06	)	 	$	(0.03	)	 	$	(0.12	)	
Diluted	$	(0.04	)	 	$	(0.03	)	 	$	(0.02	)	 	$	(0.06	)	 	$	(0.08	)	 	$	(0.06	)	 	$	(0.03	)	 	$	(0.12	)	
Net income/(loss) per share from discontinued operations:	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	
Basic	$	0.02	
 	 	$	0.01	
 	 	$	0.01	
 	 	$	0.02	
 	 	$	0.28	
 	 	$	(0.01	)	 	$	(0.01	)	 	$	(0.02	)	
Diluted	$	0.01	
 	 	$	0.01	
 	 	$	0.01	
 	 	$	0.02	
 	 	$	0.24	
 	 	$	(0.01	)	 	$	(0.01	)	 	$	(0.02	)	
Net (loss)/income attributable to common stockholders:	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	
Basic	$	(0.03	)	 	$	(0.02	)	 	$	(0.02	)	 	$	(0.04	)	 	$	0.20	
 	 	$	(0.07	)	 	$	(0.04	)	 	$	(0.14	)	
Diluted	$	(0.03	)	 	$	(0.02	)	 	$	(0.02	)	 	$	(0.04	)	 	$	0.17	
 	 	$	(0.07	)	 	$	(0.04	)	 	$	(0.14	)	
Weighted average shares:	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	
Basic	13,850,667	
 	 	13,892,816	
 	 	13,939,938	
 	 	14,008,772	
 	 	14,011,814	
 	 	14,362,494	
 	 	14,441,707	
 	 	14,488,060	
 	
Diluted	16,322,294	
 	 	16,314,620	
 	 	16,312,622	
 	 	14,470,947	
 	 	16,615,574	
 	 	14,362,494	
 	 	14,441,707	
 	 	14,488,060	

15.    Subsequent Events
On January 21, 2014, we sold our assets associated with the development of fiber optic shape sensing and localization for the medical field to affiliates of Intuitive Surgical, Inc., for total cash consideration of up to $30 million, including $6 million received at closing, and $6 million to be received within 90 days of closing, and up to $18 million that may be received in the future based on the achievement of certain technical milestones and royalties on system sales, if any. In the transaction, we sold equipment and intellectual property associated with our shape sensing technology. Ten employees were transferred to Intuitive. Included in the transaction were current assets of totaling approximately $0.2 million and long term assets with a net book value of approximately $0.2 million, at December 31, 2013. Our fiber optic shape sensing and localization for the medical field accounted for approximately 12% of our revenues, and 9% of our cost of revenues for the year ended December 31, 2013.
Effective on January 21, 2014, we entered into an amendment to the Credit Facilities in connection with our sale of assets to Intuitive, which reduced the covenant to a minimum cash balance of $3.5 million.
16.    Discontinued Operations
On March 1, 2013, we completed the sale of our SCC which was part of our Technology Development segment, to an unaffiliated third party for a gross sales price of $6.1 million of cash. Prior to the sale, SCC provided innovative solutions designed to secure critical technologies within the U.S. government. SCC conducted applied research and provided services to the government in this area, with its revenues primarily derived from U.S. government contracts and purchase orders. Of the purchase price, we received approximately $5.4 million at closing and $110,000 on December 31, 2013. During December 2013, an additional $475,000 in purchase price was released to us from escrow and another $125,000 is in escrow and may be released 18 months, after the closing of the transaction, subject to any indemnification claims of the acquirer. In connection

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with the sale, we incurred approximately $0.9 million in transaction costs that included various charges related to investment banker and legal fees. In addition, the acquirer has entered into a sublease with us for the facilities historically occupied by SCC through April 30, 2014 for a total of $0.4 million. In the transaction, we sold the equipment, contracts and intellectual property associated with SCC. Approximately 20 employees of SCC transferred to the acquirer. Included in the transaction were current assets of approximately $0.2 million and long term assets with a net book value of approximately $0.1 million, at February 28, 2013. SCC accounted for 18.5% of our revenues, and 20.7% of our cost of revenues for the year ended December 31, 2012. We recorded an aggregate after-tax gain on the sale of SCC of $3.3 million or $0.20 per diluted share in our results of operations for the year ended December 31, 2013.
We have reported the results of operations of SCC as discontinued operations in our consolidated financial statements. We allocated a portion of the consolidated tax expense to discontinued operations based on the ratio of the discontinued group’s income or loss before allocations.
Following the sale of SCC, we have continued to act on behalf of the purchaser and bill the government for certain contracts that have not yet been transferred by the government to the purchaser. We record these amounts as revenues, with an offsetting amount as cost of revenues, within (loss)/income from discontinued operations. During the year ended December 31, 2013, this amount was $1.7 million. We expect to continue recording such revenues and costs until all of these contracts are transferred to the purchaser by the government.
The operating loss from discontinued operations for the year ended December 31, 2013, is the result the allocation of the alternative minimum tax computation on the company’s results as a whole at December 31, 2013.
The key components of income/(loss) from discontinued operations were as follows:

 	 	 	 	 	 	 	 	 	 	 	 	
 	Year Ended December 31,	
 	2011	 	2012	 	2013	
Net revenues	$	6,831,779	
 	 	$	5,971,452	
 	 	$	2,196,732	
 	
Cost of revenues	4,310,423	
 	 	4,179,552	
 	 	2,098,413	
 	
Operating expenses	895,508	
 	 	574,446	
 	 	229,745	
 	
Income/(loss) before income taxes	1,625,848	
 	 	1,217,454	
 	 	(131,426	)	
Allocated tax expense/(benefit)	489,247	
 	 	462,175	
 	 	(54,154	)	
Operating income/(loss) from discontinued operations	1,136,601	
 	 	755,279	
 	 	(77,272	)	
Gain on sale, net of $1.5 million of related income taxes	—	
 	 	—	
 	 	3,391,451	
 	
Income from discontinued operations, net of income taxes	$	1,136,601	
 	 	$	755,279	
 	 	$	3,314,179	

ITEM 9.    CHANGES IN AND DISAGREEMENTS WITH ACCOUNTANTS ON ACCOUNTING AND FINANCIAL DISCLOSURE.
None.

ITEM 9A.    CONTROLS AND PROCEDURES.
Evaluation of Disclosure Controls and Procedures
We maintain “disclosure controls and procedures,” as defined in Rules 13a-15(e) and 15d-15(e) under the Securities Exchange Act of 1934, as amended (the “Exchange Act”), which are controls and other procedures that are designed to ensure that information required to be disclosed by a company in the reports that it files or submits under the Exchange Act is recorded, processed, summarized and reported within the time periods specified in the SEC’s rules and forms. Disclosure controls and procedures include, without limitation, controls and procedures designed to ensure that information required to be disclosed by a company in the reports that it files or submits under the Exchange Act is accumulated and communicated to the company’s management, including its principal executive and principal financial officers, as appropriate to allow timely decisions regarding required disclosure. Management recognizes that any controls and procedures, no matter how well designed and operated, can provide only reasonable assurance of achieving their objectives and management necessarily applies its judgment in evaluating the cost-benefit relationship of possible controls and procedures. In addition, the design of any system of controls also is based in part upon certain assumptions about the likelihood of future events, and there can be no assurance that any design will succeed in achieving its stated goals under all potential future conditions. Over time, controls

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may become inadequate because of changes in conditions, or the degree of compliance with policies or procedures may deteriorate. Because of the inherent limitations in a control system, misstatements due to error or fraud may occur and not be detected.
Under the supervision and with the participation of our management, including our President and Chief Executive Officer and our Chief Financial Officer, we evaluated the effectiveness of the design and operation of our disclosure controls and procedures as of the end of the period covered by this report. Based on this evaluation, our President and Chief Executive Officer and our Chief Financial Officer have concluded that, as of December 31, 2013, our disclosure controls and procedures were effective at the reasonable assurance level.
Changes in Internal Control over Financial Reporting
No change in our internal control over financial reporting (as defined in Rules 13a-15(f) and 15d-15(f) under the Exchange Act) occurred during the quarter ended December 31, 2013 that has materially affected, or is reasonably likely to materially affect, our internal control over financial reporting.
Management’s Report on Internal Control over Financial Reporting
Our management is responsible for establishing and maintaining adequate internal control over financial reporting as defined in Rules 13a-15(f) and 15d-15(f) under the Exchange Act. Our internal control over financial reporting is designed, under the supervision of our principal executive and principal financial officers, and effected by our board of directors, management and other personnel to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with accounting principles generally accepted in the United States of America, or GAAP. Our internal control over financial reporting includes those policies and procedures that: (i) pertain to the maintenance of records that, in reasonable detail, accurately and fairly reflect the transactions and dispositions of our assets; (ii) provide reasonable assurance that transactions are recorded as necessary to permit preparation of financial statements in accordance with GAAP, and that our receipts and expenditures are being made only in accordance with authorizations of our management and directors; and (iii) provide reasonable assurance regarding prevention or timely detection of unauthorized acquisition, use or disposition of our assets that could have a material effect on our financial statements.
There are inherent limitations in the effectiveness of any internal control over financial reporting, including the possibility of human error and the circumvention or overriding of controls. Accordingly, even effective internal control over financial reporting can provide only reasonable assurance with respect to financial statement preparation and may not prevent or detect all misstatements. Further, because of changes in conditions, effectiveness of internal control over financial reporting may vary over time. Our internal control system was designed to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with GAAP.
Under the supervision and with the participation of our management, including our President and Chief Executive Officer, and our Chief Financial Officer, we conducted an evaluation of the effectiveness of our internal control over financial reporting as of December 31, 2013. This evaluation was based on the criteria established in the 1992  Internal Control—Integrated Framework  issued by the Committee of Sponsoring Organizations of the Treadway Commission (“COSO”).
Based on our evaluation under the framework established in the 1992 Internal Control—Integrated Framework, our President and Chief Executive officer, and our Chief Financial Officer concluded that our internal control over financial reporting was effective as of December 31, 2013 to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with GAAP.
This annual report does not include an attestation report of our independent registered public accounting firm regarding internal control over financial reporting. Management’s report was not subject to attestation by our independent registered public accounting firm pursuant to temporary rules of the SEC that permit us to provide only management’s report in this annual report.
 
ITEM 9B.    OTHER INFORMATION.
None.

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PART III
 
ITEM 10.    DIRECTORS, EXECUTIVE OFFICERS AND CORPORATE GOVERNANCE
The information required by Item 10 of Form 10-K will be included in our Proxy Statement for the 2014 Annual Meeting of Stockholders, which we refer to as the 2014 Proxy Statement, anticipated to be filed with the SEC within 120 days after December 31, 2013, and is incorporated into this report by reference.
 
ITEM 11.    EXECUTIVE COMPENSATION.
The information required by Item 11 of Form 10-K is incorporated into this report by reference to the information to be provided in our 2014 Proxy Statement.
 
ITEM 12.    SECURITY OWNERSHIP OF CERTAIN BENEFICIAL OWNERS AND MANAGEMENT AND RELATED STOCKHOLDER MATTERS
Other than the information below relating to securities authorized for issuance under our equity compensation plans, the information required by Item 12 of Form 10-K is incorporated into this report by reference to the information to be provided in our 2014 Proxy Statement.
EQUITY COMPENSATION PLANS
The following table summarizes our equity compensation plans as of December 31, 2013:

Plan category	Number of
securities to be
issued upon
exercise of
outstanding
options, warrants
and rights
(a)	 	Weighted-
average exercise
price of
outstanding
options,
warrants and
rights
(b)	 	Number of securities
remaining available for
future issuance under
equity compensation plans
(excluding securities
reflected in column (a))
(c)	
Equity compensation plans approved by security holders	5,279,229	
 	 	$	2.11	
 	 	10,468,175	
 	
Equity compensation plans not approved by security holders	2,247,271	
 	 	0.41	
 	 	—	
 	
Total	7,526,500	
 	 	$	1.60	
 	 	10,468,175	
 	
Our 2006 Equity Incentive Plan provides for annual increases in the number of shares available for issuance on the first day of each fiscal year equal to the least of: (i) 10% of the outstanding shares of our common stock on the last day of the immediately preceding fiscal year; (ii) 1,695,690 shares; or (iii) such other amount as our board of directors may determine.
 
ITEM 13.    CERTAIN RELATIONSHIPS AND RELATED TRANSACTIONS, AND DIRECTOR INDEPENDENCE
The information required by Item 13 of Form 10-K is incorporated into this report by reference to the information to be provided in our 2014 Proxy Statement.
 
ITEM 14.    PRINCIPAL ACCOUNTING FEES AND SERVICES
The information required by Item 14 of Form 10-K is incorporated into this report by reference to the information to be provided in our 2014 Proxy Statement.

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PART IV
 
ITEM 15.    EXHIBITS, FINANCIAL STATEMENT SCHEDULE
 	 	
(a)	The following documents are filed as part of this Annual Report on Form 10-K:	
 	 	
(1)	Financial Statements. See Index to Consolidated Financial Statements at Item 8 of this Report on Form 10-K.	
 	 	
(2)	Schedules.	
Schedule II
Luna Innovations Incorporated
Valuation and Qualifying Accounts

Column A	Column B	 	Column C	 	Column D	 	Column E	 	Column F	
 	Balance
at beginning
of Period	 	Charged
to costs
and
expenses	 	Deductions	 	Valuation
against
asset	 	Balance at
end
of period	
Year Ended December 31, 2013	 	 	 	 	 	 	 	 	 	
Reserves deducted from assets to which they apply:	 	 	 	 	 	 	 	 	 	
Inventory obsolescence	$	86,186	
 	 	$	—	
 	 	$	(11,435	)	 	$	—	
 	 	$	74,751	
 	
Allowances for doubtful Accounts	$	—	
 	 	$	134,811	
 	 	$	—	
 	 	$	—	
 	 	$	134,811	
 	
 	$	86,186	
 	 	$	134,811	
 	 	$	(11,435	)	 	$	—	
 	 	$	209,562	
 	
Year Ended December 31, 2012	 	 	 	 	 	 	 	 	 	
Reserves deducted from assets to which they apply:	 	 	 	 	 	 	 	 	 	
Inventory obsolescence	$	147,676	
 	 	$	—	
 	 	$	(61,490	)	 	$	—	
 	 	$	86,186	
 	
Allowances for doubtful Accounts	$	22,372	
 	 	$	—	
 	 	$	(22,372	)	 	$	—	
 	 	$	—	
 	
 	$	170,048	
 	 	$	—	
 	 	$	(83,862	)	 	$	—	
 	 	$	86,186	
 	
Year Ended December 31, 2011	 	 	 	 	 	 	 	 	 	
Reserves deducted from assets to which they apply:	 	 	 	 	 	 	 	 	 	
Inventory obsolescence	$	61,356	
 	 	$	86,320	
 	 	$	—	
 	 	$	—	
 	 	$	147,676	
 	
Allowances for doubtful Accounts	$	22,372	
 	 	$	—	
 	 	$	—	
 	 	$	—	
 	 	$	22,372	
 	
 	$	83,728	
 	 	$	83,320	
 	 	$	—	
 	 	$	—	
 	 	$	170,048	
 	
All other schedules are omitted as the required information is inapplicable or the information is presented in the Consolidated Financial Statements and notes thereto in Item 8 of Part II of this Annual Report on Form 10-K.
 	 	
(3)	Exhibits. The exhibits filed as part of this report are listed under “Exhibits” at subsection (b) of this Item 15.	
 	 	
(b)	Exhibits	

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EXHIBIT INDEX

Exhibit No.	Exhibit Document	
2.1(1)	Findings of Fact, Conclusions of Law, and Order under 11 U.S.C. §§ 1129(a) and (b) and Fed. R. Bankr. P. 3020 Confirming First Amended Joint Plan of Reorganization of Luna Innovations Incorporated and Luna Innovations, Inc., debtors and debtors-in-possession, dated January 12, 2010 (Exhibit 2.1)	
2.2(1)	First Amended Joint Plan of Reorganization of Luna Innovations Incorporated and Luna Technologies, Inc., dated December 18, 2009 (Exhibit 2.2)	
2.3(1)	First Amended Disclosure Statement in support of First Amended Joint Plan of Reorganization of Luna Innovations Incorporated, et al., under Chapter 11 of the Bankruptcy Code, dated December 18, 2009 (Exhibit 2.3)	
2.4(2)*	Asset Purchase Agreement, dated March 1, 2013, by and between Luna Innovations Incorporated and MacAulay-Brown, Inc. (Exhibit 2.4)	
3.1(3)	Amended and Restated Certificate of Incorporation of the Registrant (Exhibit 3.2)	
3.2(4)	Certificate of Designations of the Series A Convertible Preferred Stock (Exhibit 3.1)	
3.3(5)	Amended and Restated Bylaws of the Registrant (Exhibit 3.4)	
3.4(6)	Amendment to Amended and Restated Bylaws (Exhibit 3.1)	
4.1(7)	Specimen Common Stock certificate of the Registrant (Exhibit 4.1)	
4.2(5)	2003 Stock Plan (Exhibit 10.7)	
4.3(8)	2006 Equity Incentive Plan (Exhibit 10.9)	
4.4(5)	Form of Stock Option Agreement (Exhibit 4.7)	
10.1(9)	Form of Indemnification Agreement for directors and executive officers (Exhibit 10.1)	
10.2(10)	Commercial Lease, dated March 15, 2007, between Canvasback Real Estate & Investments LLC and Luna Innovations Incorporated (705 Dale Avenue, Charlottesville, Virginia) (Exhibit 10.1)	
10.3(7)**	License Agreement No. DN-982, dated June 10, 2002, by and between the National Aeronautics and Space Administration (NASA) and Luna Innovations Incorporated; Modification No. 1 to License Agreement No. DN-982, dated January 23, 2006, by and between NASA and Luna Innovations Incorporated (Exhibit 10.22)	
10.4(7)**	License Agreement No. DN-951, dated December 20, 2000, by and between NASA and Luna Technologies, Inc. (Exhibit 10.23)	
10.5(7)**	Amended and Restated License Agreement, dated March 19, 2004, by and between Virginia Tech Intellectual Properties, Inc. and Luna Innovations Incorporated (Exhibit 10.26)	
10.6(11)	Asset Transfer and License Agreement by and between Luna Innovations Incorporated and Coherent, Inc. (Exhibit 10.21)	
10.7(12)**	Development and Supply Agreement, dated December 12, 2006, by and between Luna Innovations Incorporated and Intuitive Surgical, Inc. dated June 11, 2007 (Exhibit 10.1)	
10.8(13)	Amendment to Commercial Lease, by and between Luna Innovations Incorporated and Canvasback Real Estate & Investments LLC dated March 18, 2008 (Exhibit 10.5)	
10.9(14)	Confidential Settlement Agreement, dated as of December 11, 2009, by and between Luna Innovations, Inc. and Luna Technologies, Inc. and Hansen Medical, Inc. (Exhibit 10.26)	
10.10(4)	Securities Purchase and Exchange Agreement, dated January 12, 2010, by and between Luna Innovations Incorporated and Carilion Clinic (Exhibit 10.1)	
10.11(4)	Warrant No. 1 to Purchase Common Stock, dated January 13, 2010, issued to Carilion Clinic (Exhibit 10.2)	
10.12(4)	Warrant No. 2 to Purchase Common Stock, dated January 13, 2010, issued to Carilion Clinic (Exhibit 10.3)	
10.13(4)	Amended and Restated Investor Rights Agreement, dated January 13, 2010, by and among Luna Innovations Incorporated, Carilion Clinic, and certain stockholders of Luna Innovations Incorporated (Exhibit 10.4)	
10.14(15)	Non-Employee Directors’ Deferred Compensation Plan (Exhibit 10.37)	
10.15(16)**	License Agreement, effective January 12, 2010, by and among Luna Innovations Incorporated, Luna Technologies, Inc. and Hansen Medical, Inc. (Exhibit 10.6)	
10.16(16)**	Development and Supply Agreement, effective January 12, 2010, by and among Luna Innovations Incorporated, Luna Technologies, Inc. and Hansen Medical, Inc., as amended on February 17, 2010 and April 2, 2010 (Exhibit 10.7)	
10.17(16)**	License Agreement, effective January 12, 2010, by and among Luna Innovations Incorporated, Luna Technologies, Inc. and Intuitive Surgical, Inc. (Exhibit 10.8)	

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10.18(16)**	Amendments to Development and Supply Agreement, effective January 12, 2010 and April 27, 2010, by and between Luna Innovations Incorporated and Intuitive Surgical, Inc. (Exhibit 10.9)	
10.19(16)	Confidential Mutual Release, effective as of January 12, 2010, by and among Luna Innovations Incorporated, Luna Technologies, Inc. and Hansen Medical, Inc. (Exhibit 10.13)	
10.20(16)	Industrial Lease Agreement, dated as of March 21, 2006, by and between Luna Innovations Incorporated and the Economic Development Authority of Montgomery County, Virginia, as amended by a First Amendment effective as of May 11, 2006, a Second Amendment effective as of July 15, 2009 and a Third Amendment effective as of March 23, 2010 (Exhibit 10.14)	
10.21(16)	Lease for Riverside Center, dated December 30, 2005, by and between Carilion Medical Center and Luna Innovations Incorporated, as amended by an Amended Lease dated July 20, 2006, a Second Amendment dated on or about October 5, 2007 and a Third Amendment effective as of April 1, 2010 (Exhibit 10.15)	
10.22(16)	Loan and Security Agreement, dated February 18, 2010, by and between Luna Innovations Incorporated, Luna Technologies, Inc. and Silicon Valley Bank (Exhibit 10.5)	
10.23(17)	Third Amendment to Commercial Lease dated June 21, 2010, by and between Canvasback Real Estate & Investments, LLC, and Luna Innovations, Incorporated (Exhibit 10.5)	
10.24(18)**	Amendment No.3 to the Development Supply Agreement, dated as of September 2, 2010, by and between Luna Innovations Incorporated and Intuitive Surgical, Inc. (Exhibit 10.5)	
10.25(19)	First Loan Modification Agreement, dated as of March 7, 2011, by and between Luna Innovations Incorporated and Silicon Valley Bank (Exhibit 10.1)	
10.26(20)**	Amendment No. 4 to the Development and Supply Agreement, dated as of March 23, 2011, by and between Luna Innovations Incorporated and Intuitive Surgical, Inc. (Exhibit 10.2)	
10.27(20)	Fourth Amendment to Industrial Lease Agreement, dated as of March 1, 2011, by and between The Economic Development Authority of Montgomery County and Luna Innovations Incorporated (Exhibit 10.3)	
10.28(21)	Second Loan Modification Agreement, dated as of May 18, 2011, by and between Luna Innovations Incorporated, Luna Technologies, Inc. and Silicon Valley Bank (Exhibit 10.1)	
10.29(22)	Fifth Amendment to Industrial Lease Agreement, dated as of November 1, 2011, by and between The Economic Development Authority of Montgomery County and Luna Innovations Incorporated	
10.30(22)	Employment Agreement dated March 28, 2012, by and between My E. Chung and Luna Innovations Incorporated	
10.31(22)	Employment Agreement dated March 28, 2012, by and between Dale E. Messick and Luna Innovations Incorporated	
10.32(22)	Employment Agreement dated March 28, 2012, by and between Scott A. Graeff and Luna Innovations Incorporated	
10.33(22)	Employment Agreement dated March 28, 2012, by and between Mark Froggatt, Ph.D. and Luna Innovations Incorporated	
10.34(22)	Employment Agreement dated March 28, 2012, by and between Talfourd H. Kemper, Jr., and Luna Innovations Incorporated	
10.35(23)**	Amendment No. 5 to Development and Supply Agreement, dated as of March 22, 2012, by and between Luna Innovations Incorporated and Intuitive Surgical, Inc. (Exhibit 10.1)	
10.36(24)	Fourth Amendment to Commercial Lease, dated as of April 15, 2012, by and between Canvasback Real Estate & Investments, LLC and Luna Innovations Incorporated (Exhibit 10.3)	
10.37(25)	Development Agreement, dated as of April 25, 2012, by and between Luna Innovations Incorporated and Philips Medical Systems Nederland BV (Exhibit 10.1)	
10.38(26)	Third Loan Modification Agreement, dated as of May 17, 2012, by and between Luna Innovations Incorporated, Luna Technologies, Inc. and Silicon Valley Bank (Exhibit 10.1)	
10.39(27)	Fourth Loan Modification Agreement, dated March 21, 2013, by and between Luna Innovations Incorporated, Luna Technologies, Inc. and Silicon Valley Bank. (Exhibit 10.1)	
10.40(27)	Fourth Amendment to Luna Innovations Lease of Riverside Center, dated March 21, 2013, by and between Carilion Clinic Properties, LLC and Luna Innovations Incorporated (Exhibit 10.2)	
10.41(28)**	2013 Senior Management Incentive Plans (Exhibit 10.1)	
10.42(28)**	Amendment No. 6 to the Intuitive-Luna Development and Supply Agreement, dated December 15, 2012, by and between Luna Innovations Incorporated and Intuitive Surgical Operations, Inc., a successor in interest to Intuitive Surgical, Inc. (Exhibit 10.2)	
10.43(28)**	Amendment No. 7 to the Intuitive-Luna Development and Supply Agreement, entered into on June 28, 2013, by and between Luna Innovations Incorporated and Intuitive Surgical Operations, Inc., a successor in interest to Intuitive Surgical, Inc. (Exhibit 10.3)	

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10.44 (29)	Fifth Amendment to Luna Innovations Lease of Riverside Center, dated December 13, 2013, by and between Carilion Clinic Properties, LLC and Luna Innovations Incorporated (Exhibit 10.44)	
21.1	List of Subsidiaries	
23.1 (29)	Consent of Grant Thornton LLP, Independent Registered Public Accounting Firm (Exhibit 23.1)	
24.1	Power of Attorney (see Page 70 of the Registrants Annual Report on Form 10-K, Commission File No. 000-52008, filed on April 10, 2014)	
31.1	Certification of the Principal Executive Officer pursuant to Rule 13a-14(a) and Rule 15d-14(a) of the Securities Exchange Act of 1934, as adopted pursuant to Section 302 of the Sarbanes-Oxley Act of 2002.	
31.2	Certification of the Principal Financial Officer pursuant to Rule 13a-14(a) and Rule 15d-14(a) of the Securities Exchange Act of 1934, as adopted pursuant to Section 302 of the Sarbanes-Oxley Act of 2002.	
32.1***	Certification of Principal Executive Officer pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002.	
32.2***	Certification of Principal Financial Officer pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002.	
101****	The following materials from the Registrant’s Annual Report on Form 10-K for the year ended December 31, 2013, are formatted in XBRL (eXtensible Business Reporting Language): (i) Consolidated Balance Sheets at December 31, 2012 and 2013, (ii) Consolidated Statements of Operations for the years ended December 31, 2011, 2012 and 2013, (iii) Consolidated Statements of Changes in Stockholder’s Equity (Deficit) for the years ended December 31, 2011, 2012 and 2013 (iv) Consolidated Statements of Cash Flows for the years ended December 31, 2011, 2012 and 2013, and (v) Notes to audited Consolidated Financial Statements.	
_________________________
 	 	
(1)	Incorporated by reference to the exhibit to the Registrant’s Current Report on Form 8-K, Commission File No. 000-52008, filed on January 15, 2010 (reporting under Items 1.03, 5.02 and 9.01). The number given in parentheses indicates the corresponding exhibit number in such Form 8-K.	
 	 	
(2)	Incorporated by reference to the Registrant’s Annual Report on Form 10-K, Commission File No. 000-52008, filed on March 29, 2013. The number in parentheses indicates the corresponding exhibit number in such Form 10-K.	
 	 	
(3)	Incorporated by reference to the exhibit to the Registrant’s Current Report on Form 8-K, Commission File No. 000-52008, filed on June 8, 2006. The number given in parentheses indicates the corresponding exhibit number in such Form 8-K.	
 	 	
(4)	Incorporated by reference to the exhibit to the Registrant’s Current Report on Form 8-K, Commission File No. 000-52008, filed on January 15, 2010 (reporting under Items 1.01, 3.02, 3.03, 5.03 and 9.01). The number given in parentheses indicates the corresponding exhibit number in such Form 8-K.	
 	 	
(5)	Incorporated by reference to the exhibit to the Registrant’s Registration Statement on Form S-1, Commission File No. 333-131764, filed on February 10, 2006. The number given in parentheses indicates the corresponding exhibit number in such Form S-1.	
 	 	
(6)	Incorporated by reference to the exhibit to the Registrant’s Current Report on Form 8-K filed with the Securities and Exchange Commission on May 10, 2010 (File No. 000-52008). The number in parentheses indicates the corresponding exhibit number in such Form 8-K.	
 	 	
(7)	Incorporated by reference to the exhibit to Amendment No. 5 of the Registrant’s Registration Statement on Form S-1, Commission File No. 333-131764, filed on April 19, 2006. The number given in parentheses indicates the corresponding exhibit number in such Form S-1.	
 	 	
(8)	Incorporated by reference to the exhibit to Amendment No. 3 of the Registrant’s Registration Statement on Form S-1, Commission File No. 333-131764, filed on April 28, 2006. The number given in parentheses indicates the corresponding exhibit number in such Form S-1.	
 	 	
(9)	Incorporated by reference to the exhibit to the Registrant’s Current Report on Form 8-K, Commission File No. 000-52008, filed on July 17, 2009 (reporting under Items 1.01, 5.02 and 9.01). The number given in parentheses indicates the corresponding exhibit number in such Form 8-K.	
 	 	
(10)	Incorporated by reference to the exhibit to Registrant’s Quarterly Report on Form 10-Q, Commission File No. 000-52008, filed on May 15, 2007. The number given in parentheses indicates the corresponding exhibit number in such Form 10-Q.	
 	 	
(11)	Incorporated by reference to the exhibit to Amendment No. 1 to Registrant’s Annual Report on Form 10-K, Commission File No. 000-52008, filed on April 6, 2007. The number given in parentheses indicates the corresponding exhibit number in such Form 10-K/A.	
 	 	
(12)	Incorporated by reference to the exhibit to the Registrant’s Current Report on Form 8-K, Commission File No. 000-52008, filed on June 14, 2007. The number given in parentheses indicates the corresponding exhibit number in such Form 8-K.	

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(13)	Incorporated by reference to the exhibit to Registrant’s Quarterly Report on Form 10-Q, Commission File No. 000-52008, filed on May 9, 2008. The number given in parentheses indicates the corresponding exhibit number in such Form 10-Q.	
 	 	
(14)	Incorporated by reference to the exhibit to Registrant’s Annual Report on Form 10-K, Commission File No. 000-52008, filed on March 26, 2010. The number given in parentheses indicates the corresponding exhibit number in such Form 10-K.	
 	 	
(15)	Incorporated by reference to the exhibit to Registrant’s Annual Report on Form 10-K, Commission File No. 000-52008, filed on March 16, 2009. The number given in parentheses indicates the corresponding exhibit number in such Form 10-K.	
 	 	
(16)	Incorporated by reference to the exhibit to Registrant’s Quarterly Report on Form 10-Q, Commission File No. 000-52008, filed on May 17, 2010. The number given in parentheses indicates the corresponding exhibit number in such Form 10-Q.	
 	 	
(17)	Incorporated by reference to the exhibit to Registrant’s Quarterly Report on Form 10-Q, Commission File No. 000-52008, filed on August 16, 2010. The number given in parentheses indicates the corresponding exhibit number in such Form 10-Q.	
 	 	
(18)	Incorporated by reference to the exhibit to Registrant’s Quarterly Report on Form 10-Q, Commission File No. 000-52008, filed on November 15, 2010. The number given in parentheses indicates the corresponding exhibit number in such Form 10-Q.	
 	 	
(19)	Incorporated by reference to the exhibit to the Registrant’s Current Report on Form 8-K, Commission File No. 000-52008, filed on March 9, 2011. The number given in parentheses indicates the corresponding exhibit number in such Form 8-K.	
 	 	
(20)	Incorporated by reference to the exhibit to Registrant’s Quarterly Report on Form 10-Q, Commission File No. 000-52008, filed on May 16, 2011. The number given in parentheses indicates the corresponding exhibit number in such Form 10-Q.	
 	 	
(21)	Incorporated by reference to the exhibit to Registrant’s Quarterly Report on Form 10-Q, Commission File No. 000-52008, filed on August 12, 2011. The number given in parentheses indicates the corresponding exhibit number in such Form 10-Q.	
 	 	
(22)	Incorporated by reference to the exhibit to the Registrant’s Current Report on Form 10-K, Commission File No. 000-52008, filed on March 29, 2012. The number given in parentheses indicates the corresponding exhibit number in such Form 10-K.	
 	 	
(23)	Incorporated by reference to the exhibit to the Registrant’s Quarterly Report on Form 10-Q, Commission File No. 000-52008, filed on May 10, 2012. The number given in parentheses indicates the corresponding exhibit number in such Form 10-Q.	
 	 	
(24)	Incorporated by reference to the exhibit to the Registrant’s Quarterly Report on Form 10-Q, Commission File No. 000-52008, filed on August 9, 2012. The number given in parentheses indicates the corresponding exhibit number in such Form 10-Q.	
 	 	
(25)	Incorporated by reference to the exhibit to the Registrant’s Amendment No. 1 to Quarterly Report on Form 10-Q, Commission File No. 000-52008, filed on August 10, 2012. The number given in parentheses indicates the corresponding exhibit number in such Form 10-Q.	
 	 	
(26)	Incorporated by reference to the exhibit to the Registrant’s Current Report on Form 8-K, Commission File No. 000-52008, filed on July 11, 2012. The number given in parentheses indicates the corresponding exhibit number in such Form 8-K.	
 	 	
(27)	Incorporated by reference to the Registrant’s Current Report on Form 8-K, Commission File No. 000-52008, filed on March 27, 2013. The number given in parentheses indicates the corresponding exhibit number in such Form 8-K.	
 	 	
(28)	Incorporated by reference to the exhibit to the Registrant’s Quarterly Report on Form 10-Q, Commission File No. 000-52008, filed on August 8, 2013. The number given in parentheses indicates the corresponding exhibit number in such Form 10-Q.	
 	 	
(29)	Incorporated by reference to the exhibit to the Registrant's Annual Report on Form 10-K, Commission File No. 000-52008, filed on April 10, 2014 (the number given in parenthesis indicates the corresponding exhibit number in such Form 10-K ).	

*	Confidential treatment has been granted with respect to portions of this exhibit, indicated by asterisks, which has been filed separately with the Securities and Exchange Commission. Pursuant to Item 601(b)(2) of Regulation S-K, the schedules and exhibits to this agreement are omitted, but will be furnished to the Securities and Exchange Commission upon request.	
 	 	
**	Confidential treatment has been granted with respect to portions of this exhibit, indicated by asterisks, which has been filed separately with the Securities and Exchange Commission.	
 	 	
***	These certifications are being furnished solely to accompany this annual report pursuant to 18 U.S.C. Section 1350, and are not being filed for purposes of Section 18 of the Securities Exchange Act of 1934 and are not to be	

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incorporated by reference into any filing of the registrant, whether made before or after the date hereof, regardless of any general incorporation language in such filing.
 	 	
****	Pursuant to Rule 406T of Regulation S-T, the Interactive Data Files on Exhibit 101 hereto are deemed not filed or part of a registration statement or prospectus for purposes of Section 11 or 12 of the Securities Act of 1933, as amended, are deemed not filed for purposes of Section 18 of the Securities Exchange Act of 1934, as amended, and otherwise are not subject to liability under those sections.	

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SIGNATURES
Pursuant to the requirements of Section 13 or 15(d) of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned thereunto duly authorized.

 	LUNA INNOVATIONS INCORPORATED	
 	 	 	 	
 	By:	 	/S/    DALE E. MESSICK        	
 	 	 	Dale E. Messick
Chief Financial Officer	
April 15, 2014
Pursuant to the requirements of the Securities and Exchange Act of 1934, this report has been signed below by the following persons on behalf of the registrant and in the capacities on the dates indicated.

Signature	 	Title	 	Date	 	
 	 	 	 	 	 	
*	 	President, Chief Executive Officer and Director (Principal Executive Officer)	 	April 15, 2014	 	
My E. Chung	 	 	 	 	 	 	
/S/    DALE E. MESSICK        	 	Chief Financial Officer (Principal Financial Officer and Principal Accounting Officer)	 	April 15, 2014	 	 	
Dale E. Messick	 	 	 	 	 	 	 	
*	 	Director	 	April 15, 2014	 	 	 	
Michael W. Wise	 	 	 	 	 	 	 	 	
*	 	Director	 	April 15, 2014	 	 	 	 	
Warner Dalhouse	 	 	 	 	 	 	 	 	 	
*	 	Director	 	April 15, 2014	 	 	 	 	 	
John B. Williamson III	 	 	 	 	 	 	 	 	 	 	
*	 	Director	 	April 15, 2014	 	 	 	 	 	 	
Neil Wilkin, Jr.	 	 	 	 	 	 	 	 	 	 	 	
*	 	Chairman of the Board of Directors	 	April 15, 2014	 	 	 	 	 	 	 	
Richard W. Roedel	 	 	 	 	 	 	 	 	 	 	 	

*By: /S/    Talfourd H. Kemper, Jr.        
Talfourd H. Kemper, Jr.
Attorney-in-Fact

71

Exhibit 21.1
SUBSIDIARIES
Luna Technologies, Inc.

Exhibit 31.1
CERTIFICATION OF PRINCIPAL EXECUTIVE OFFICER PURSUANT TO
SECTION 302 OF THE SARBANES-OXLEY ACT OF 2002
I, My E. Chung, certify that:
 	 	
1.	I have reviewed this Amendment No. 1 to the annual report on Form 10-K/A of Luna Innovations Incorporated;	
 	 	
2.	Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this report;	
 	 	
3.	Based on my knowledge, the financial statements, and other financial information included in this report, fairly present in all material respects the financial condition, results of operations and cash flows of the registrant as of, and for, the periods presented in this report;	
 	 	
4.	The registrant’s other certifying officer and I are responsible for establishing and maintaining disclosure controls and procedures (as defined in Exchange Act Rules 13a-15(e) and 15d-15(e)) and internal control over financial reporting (as defined in Exchange Act Rules 13a-15(f) and 15d-15(f)) for the registrant and have:	
 	 	
a.	designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be designed under our supervision, to ensure that material information relating to the registrant, including its consolidated subsidiaries, is made known to us by others within those entities, particularly during the period in which this report is being prepared;	
 	 	
b.	designed such internal control over financial reporting, or caused such internal control over financial reporting to be designed under our supervision, to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles;	
 	 	
c.	evaluated the effectiveness of the registrant’s disclosure controls and procedures and presented in this report our conclusions about the effectiveness of the disclosure controls and procedures, as of the end of the period covered by this report based on such evaluation; and	
 	 	
d.	disclosed in this report any change in the registrant’s internal control over financial reporting that occurred during the registrant’s most recent fiscal quarter (the registrant’s fourth fiscal quarter in the case of an annual report) that has materially affected, or is reasonably likely to materially affect, the registrant’s internal control over financial reporting; and	
 	 	
5.	The registrant’s other certifying officer and I have disclosed, based on our most recent evaluation of internal control over financial reporting, to the registrant’s auditors and the audit committee of the registrant’s board of directors (or persons performing the equivalent functions):	
 	 	
a.	all significant deficiencies and material weaknesses in the design or operation of internal control over financial reporting which are reasonably likely to adversely affect the registrant’s ability to record, process, summarize and report financial information; and	
 	 	
b.	any fraud, whether or not material, that involves management or other employees who have a significant role in the registrant’s internal control over financial reporting.	
Date: April 15, 2014

 	 	
/S/    MY E. CHUNG        	 	
My E. Chung	 	
President and Chief Executive Officer
(principal executive officer)	 	

Exhibit 31.2
CERTIFICATION OF PRINCIPAL FINANCIAL OFFICER PURSUANT TO
SECTION 302 OF THE SARBANES-OXLEY ACT OF 2002
I, Dale E. Messick, certify that:
 	 	
1.	I have reviewed this Amendment No. 1 to the annual report on Form 10-K/A of Luna Innovations Incorporated;	
 	 	
2.	Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this report;	
 	 	
3.	Based on my knowledge, the financial statements, and other financial information included in this report, fairly present in all material respects the financial condition, results of operations and cash flows of the registrant as of, and for, the periods presented in this report;	
 	 	
4.	The registrant’s other certifying officer and I are responsible for establishing and maintaining disclosure controls and procedures (as defined in Exchange Act Rules 13a-15(e) and 15d-15(e)) and internal control over financial reporting (as defined in Exchange Act Rules 13a-15(f) and 15d-15(f)) for the registrant and have:	
 	 	
a.	designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be designed under our supervision, to ensure that material information relating to the registrant, including its consolidated subsidiaries, is made known to us by others within those entities, particularly during the period in which this report is being prepared;	
 	 	
b.	designed such internal control over financial reporting, or caused such internal control over financial reporting to be designed under our supervision, to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles;	
 	 	
c.	evaluated the effectiveness of the registrant’s disclosure controls and procedures and presented in this report our conclusions about the effectiveness of the disclosure controls and procedures, as of the end of the period covered by this report based on such evaluation; and	
 	 	
d.	disclosed in this report any change in the registrant’s internal control over financial reporting that occurred during the registrant’s most recent fiscal quarter (the registrant’s fourth fiscal quarter in the case of an annual report) that has materially affected, or is reasonably likely to materially affect, the registrant’s internal control over financial reporting; and	
 	 	
5.	The registrant’s other certifying officer and I have disclosed, based on our most recent evaluation of internal control over financial reporting, to the registrant’s auditors and the audit committee of the registrant’s board of directors (or persons performing the equivalent functions):	
 	 	
a.	all significant deficiencies and material weaknesses in the design or operation of internal control over financial reporting which are reasonably likely to adversely affect the registrant’s ability to record, process, summarize and report financial information; and	
 	 	
b.	any fraud, whether or not material, that involves management or other employees who have a significant role in the registrant’s internal control over financial reporting.	
Date: April 15, 2014

 	 	
/S/    DALE E. MESSICK        	 	
Dale E. Messick	 	
Chief Financial Officer
(principal financial officer)	 	

Exhibit 32.1
CERTIFICATION OF PRINCIPAL EXECUTIVE OFFICER PURSUANT TO
SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002
In connection with Amendment No. 1 to the annual report of Luna Innovations Incorporated (the “Company”) on Form 10-K/A for the year ended December 31, 2013 as filed with the Securities and Exchange Commission on the date hereof (the “Report”), I, My E. Chung, President and Chief Executive Officer of the Company, certify, pursuant to 18 U.S.C. § 1350, as adopted pursuant to § 906 of the Sarbanes-Oxley Act of 2002, that to my knowledge:
(1) The Report fully complies with the requirements of Section 13(a) or 15(d) of the Securities Exchange Act of 1934; and
(2) The information contained in the Report fairly presents, in all material respects, the financial condition and results of operations of the Company.
This certification accompanies this Report to which it relates, shall not be deemed “filed” with the Securities and Exchange Commission and is not to be incorporated by reference into any filing of the Company under the Securities Act of 1933, as amended, or the Securities Exchange Act of 1934, as amended (whether made before or after the date of the Report), irrespective of any general incorporation language contained in such filing.

 	 	
/S/    MY E. CHUNG        	 	
My E. Chung	 	
President and Chief Executive Officer
(principal executive officer)	 	
April 15, 2014

Exhibit 32.2
CERTIFICATION OF PRINCIPAL FINANCIAL OFFICER PURSUANT TO
SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002
In connection with Amendment No. 1 to the annual report of Luna Innovations Incorporated (the “Company”) on Form 10-K/A for the year ended December 31, 2013 as filed with the Securities and Exchange Commission on the date hereof (the “Report”), I, Dale E. Messick, Chief Financial Officer of the Company, certify, pursuant to 18 U.S.C. § 1350, as adopted pursuant to § 906 of the Sarbanes-Oxley Act of 2002, that to my knowledge:
(1) The Report fully complies with the requirements of Section 13(a) or 15(d) of the Securities Exchange Act of 1934; and
(2) The information contained in the Report fairly presents, in all material respects, the financial condition and results of operations of the Company.
This certification accompanies this Report to which it relates, shall not be deemed “filed” with the Securities and Exchange Commission and is not to be incorporated by reference into any filing of the Company under the Securities Act of 1933, as amended, or the Securities Exchange Act of 1934, as amended (whether made before or after the date of the Report), irrespective of any general incorporation language contained in such filing.

 	 	
/S/    DALE E. MESSICK        	 	
Dale E. Messick	 	
Chief Financial Officer
(principal financial officer)	 	
April 15, 2014