UNITED STATES
SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549


 FORM10-K 


x

ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934
For the fiscal year ended December 31, 20172019
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: 001-36042
INTREXON CORPORATION001-36042
PRECIGEN, INC.
(Exact name of registrant as specified in its charter)
Virginia 26-0084895
(State or other jurisdiction of
incorporation or organization)
 
(I.R.S. Employer
Identification Number)
  
20374 Seneca Meadows Parkway
Germantown, MDMaryland 20876
(Address of principal executive offices) (Zip Code)
Registrant's telephone number, including area code (301) code: (301) 556-9900
Securities registered pursuant to Section 12(b) of the Act:
Title of each classTrading Symbol(s) Name of each exchange on which registered
Intrexon Corporation Common Stock, No Par Valueno par value New York Stock ExchangePGENNasdaq Global Select Market
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  x    No  ¨
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: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 (§232.405 of this chapter) 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, a smaller reporting company, or an emerging growth company. See the definitions of "large accelerated filer," "accelerated filer," "smaller reporting company," and "emerging growth company" in Rule 12b-2 of the Exchange Act.
Large accelerated filer x  Accelerated filer ¨
       
Non-accelerated filer 
¨  (Do not check if a smaller reporting company)
  Smaller reporting company ¨
       
Emerging growth company 
¨

    
If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act.    ¨
Indicate by check mark whether the registrant is a shell company (as defined in Rule 12b-2 of the Exchange Act).    Yes  ¨    No  x
As of June 30, 2017,28, 2019, the last business day of the registrant's most recently completed second fiscal quarter, the aggregate market value of the registrant's common stock held by non-affiliates based upon the closing price of such shares on the New York Stock ExchangeNasdaq Global Select Market on such date was approximately $1.4 billion.$659.7 million.
As of February 15, 2018, 129,066,1142020, 169,669,195 shares of common stock, no par value per share, were issued and outstanding.
DOCUMENTS INCORPORATED BY REFERENCE: Portions of the registrant's Definitive Proxy Statement for its 20182020 Annual Meeting of Shareholders are incorporated by reference in Part III of this Annual Report on Form 10-K where indicated. Such proxy statement will be filed with the Securities and Exchange Commission within 120 days of the registrant's fiscal year ended December 31, 2017.2019.
 





TABLE OF CONTENTS


  Page
  
Item 1.
Item 1A.
Item 1B.
Item 2.
Item 3.
Item 4.
 
 
 
 
Item 5.
Item 6.
Item 7.
Item 7A.
Item 8.
Item 9.
Item 9A.
Item 9B.
 
 
 
 
Item 10.
Item 11.
Item 12.
Item 13.
Item 14.
 
 
 
 
Item 15.
Item 16.
________________________
Intrexon®, Oxitec®, Arctic®, ViaGen®, BioPop®, ActoBiotics®, UltraVector®, Trans Ova Genetics®, Oxitec®, ActoBiotics®, ViaGen®, Okanagan Specialty Fruits®, RheoSwitch®, UltraVector®, AquAdvantage®, RTS®, and RheoSwitch Therapeutic System®, RTS®, LEAP®, Design-Build-Test-Learn® and AquAdvantage® are our and/or our affiliates' registered trademarks in the United States and AquaBounty™, GenVec™, Precigen™, AdenoVerse™, AquaBounty™ActoBio Therapeutics™, EnviroFlight™Progentus™, AttSite™, and Okanagan Specialty Fruits™Precigen Therapeutics™ are our and/or our affiliates' common law trademarks in the United States. This Annual Report on Form 10-K, or Annual Report, and the information incorporated herein by reference contain references to trademarks, service marks and trade names owned by us or other companies. Solely for convenience, trademarks, service marks, and trade names referred to in this Annual Report and the information incorporated herein, including logos, artwork, and other visual displays, may appear without the ® or ™ symbols, but such references are not intended to indicate, in any way, that we will not assert, to the fullest extent under applicable law, our rights or the rights of the applicable licensor to these trademarks, service marks, and trade names. We do not intend our use or display of other companies' trade names, service marks, or trademarks to imply a

relationship with, or endorsement or sponsorship of us by, any other companies. Other trademarks, trade names, and service marks appearing in this Annual Report are the property of their respective owners. Unless the context requires otherwise, references in this Annual Report to "Precigen", "we", "us", and "our" refer to Precigen, Inc.

Special Note Regarding Forward-Looking Statements
This Annual Report contains forward-looking statements within the meaning of the Private Securities Litigation Reform Act of 1995, which statements involve substantial risks and uncertainties. All statements, other than statements of historical facts, included in this Annual Report, including statements regarding our strategy,strategy; future events, including their outcome or timing; future operations,operations; future financial position,position; future revenue,revenue; projected costs, prospects, plans,costs; prospects; plans; objectives of managementmanagement; and expected market growth, are forward-looking statements. The words "anticipate," "believe," "estimate," "expect," "intend," "may," "plan," "predict," "project,""aim", "anticipate", "assume", "believe", "continue", "could", "due", "estimate", "expect", "intend", "may", "plan", "predict", "potential", "positioned", "project", "seek", "should", "target", "will", "would", and the negative of these terms or similar expressions are intended to identify forward-looking statements, although not all forward-looking statements contain these identifying words. These forward-looking statements include, among other things, statements about:
our strategy and overall approach to our business model;
our ability to successfully enter new markets or develop additionalproduct candidates, including the expected timing and results of investigational studies and preclinical and clinical trials, and our research and development programs;
the timing or likelihood of regulatory filings for any product candidates we develop and our ability to obtain and maintain regulatory approvals for such product candidates for any indication;
our intentions and ability to successfully commercialize our product candidates;
the rate and degree of market acceptance of any products whether with our collaborators or independently;developed by us;
our ability to successfully enter into optimal strategic relationships withexecute and achieve benefits from our subsidiariesleadership transition plan and organizational restructuring, and to manage the transition to a new chief executive officer;
our efforts to hold or generate significant operating capital, including through partnering, potential asset sales of our non-healthcare assets, and operating companies that we may formcost reductions;
our cash position;
our estimates regarding expenses, future revenue, capital requirements, and need for additional financing;
our strategy and overall approach to our business model, including our efforts to focus our business in the future;healthcare industry;
our ability to adapt to changes in laws, regulations, and policies;
our reliance on and the performance of third parties, including exclusive channel collaborations, or ECCs, and joint ventures, or JVs;
competition from existing technologies and products or new technologies and products that may emerge;
our expectations related to the use of proceeds from our public offerings and other financing efforts;
actual or anticipated variations in our operating results;
our current and future joint ventures, or JVs, exclusive channel collaborations, or ECCs, license agreements and other collaborations;
developments concerning our collaborators and licensees;
actual or anticipated fluctuations in our competitors' or our collaborators' and licensees' operating results or changes in their respective growth rates;
our cash position;
market conditions in our industry;
our ability to protect our intellectual property and other proprietary rights and technologies;
our ability to adapt to changes in laws or regulations and policies;
the ability of our collaborators and licensees to adapt to changes in laws or regulations and policies and to secure any necessary regulatory approvals to commercialize any products developed under the ECCs, license agreements and JVs;
the ability of our collaborators and licensees to protect our intellectual property and other proprietary rights and technologies;
the ability of our collaborators and licensees to develop and successfully commercialize products enabled by our technologies;
the rate and degree of market acceptance of any products developed by our subsidiaries, a collaborator under an ECC, or through a JV or license under a license agreement;
our ability to retain and recruit key personnel;
our ability to successfully enter into optimal strategic relationships with our subsidiaries and operating companies that we may form in the future; and

the result of litigation proceedings or investigations that we currently face currently or may face in the future;
our expectations related to the use of proceeds from our public offerings and other financing efforts;
our estimates regarding expenses, future revenue, capital requirements and needs for additional financing; and

the impact of the Tax Cuts and Jobs Act of 2017, or the Tax Act, on our current and future operating results.future.
Forward-looking statements may also concern our expectations relating to our subsidiaries and other affiliates. We caution you that the foregoing list may not contain all of the forward-looking statements made in this Annual Report.
We may not actually achieve the plans, intentions, or expectations disclosed in our forward-looking statements, and you should not place undue reliance on our forward-looking statements. Actual results or events could differ materially from the plans, intentions and expectations disclosed in the forward-looking statements we make. We have included important factors in the cautionary statements included in this Annual Report, particularly in Item 1A, "Risk Factors," that could cause actual results or events to differ materially from the forward-looking statements that we make. Our forward-looking statements do not reflect the potential impact of any future acquisitions, mergers, dispositions, JVs, or investments that we may make.
You should read this Annual Report, the documents that we reference in this Annual Report, the audited consolidated financial statements and related notes thereto included in this Annual Report and the documents that we have filed as exhibits to our filings with the Securities and Exchange Commission, or SEC, completely and with the understanding that our actual future results may be materially different from what we expect. We do not assume any obligation to update any forward-looking statements, whether as a result of new information, future events or otherwise, except as required by law.

PART I
Item 1.Business
At present ratesOverview
We are a dedicated discovery and clinical-stage biopharmaceutical company advancing the next generation of global industrializationgene and population growth, foodcell therapies with the overall goal of improving outcomes for patients with significant unmet medical needs. We are leveraging our proprietary technology platforms to develop product candidates designed to target urgent and energy suppliesintractable diseases in our core therapeutic areas of immuno-oncology, autoimmune disorders, and environmental and healthcare resources are becoming more scarce and/or costly. infectious diseases. We have developed an extensive pipeline of therapies across multiple indications within these core focus areas.
We believe itthe historically unreliable and costly discovery and development process for new medicines is not a viable option for mankind to continue on this path — new solutions will be necessary to preservebeing replaced by the targeted engineering of biology at the genetic, molecular and globally expand a high quality of life.cellular level. We believe that synthetic biology isour therapies differentiate us from our competition through a solution.focus on advanced multigenic construction, unique delivery mechanisms, and controllable expression. Our pipeline programs have the potential to help solve major outstanding technical and commercial challenges that continue to hinder the biopharmaceutical industry.
We believe we arethat our array of technology platforms uniquely position us among other biotechnology companies to advance precision medicine. Precision medicine is the practice of therapeutic product development that takes into account specific genetic variations within populations impacted by a leader in the field of synthetic biology, focusing on programming biological systemsdisease to alleviate disease, remediate environmental challenges, and provide sustainable food and industrial chemicals. Synthetic biology involves the tightly controlled expression of natural and engineered genes (DNA segments) in a variety of animal, plant and microorganismal hosts. Our historical approach primarily involved an ECC model in which we served principally as the technology enginedesign targeted therapies to improve outcomes for a partner experienced in a given commercial arena. As our experience has deepened, we have moved toward more JVs and the self-development of projects we view as particularly compelling and within our increasing areas of expertise.
Synthetic biology is a rapidly evolving discipline that applies engineering principles to biological systems to enable rational, design-based control of cellular function for a specific purpose. Using our suite ofdisease or patient population. Our proprietary and complementary technologies, we design, build and regulatetechnology platforms provide a strong foundation to realize the core promise of precision medicine by supporting our efforts to construct powerful gene programs which are DNA sequences that consist of key genetic components. A singleto drive efficacy, deliver these programs through viral, non-viral, and microbe-based approaches to drive lower costs, and control gene program or a complex, multi-genic program is fabricatedexpression to drive safety. Our therapeutic platforms, including UltraCAR-T, ActoBiotics, and stored within a DNA vector. Vectors are segments of DNA used as a vehicle to transmit genetic information. DNA vectors can, in turn, be introduced into cells in order to generate a simple or complex cellular system, which are the basic and complex cellular activities that take place within a cell and the interaction of those systems in the greater cellular environment. It is these genetically modified cell systems that can be used to produce biological effector molecules, or be employed directly to enable the development of new and improved products and manufacturing processes across a variety of end markets, including health, food, energy, environment, and consumer. Our synthetic biology capabilities include the abilityAdenoVerse Immunotherapy, allow us to precisely control the amount,level and physiological location of gene expression and modification ofmodify biological molecules to control the function and output of living cells to treat underlying disease conditions.
We currently are advancing multiple product candidates through clinical trials, including UltraCAR-T therapies PRGN-3005, which targets the Mucin 16 antigen, or MUC16, on the cell surface of ovarian and other peritoneal cancers, and PRGN-3006, which targets the CD33 antigen on the cell surface of acute myeloid leukemia, or AML, blasts, as well as AG013 and AG019, which are based on our ActoBiotics platform and are being investigated for the treatment of oral mucositis, or OM, and recent-onset type 1 diabetes mellitus, or T1D, respectively. In addition, we continue to rapidly advance earlier-stage preclinical programs across our core therapeutic areas.
To guide our decision-making and operations, we have adopted the following tenets, which form the core of our operating ideology:
Financial Discipline. Responsibly allocate capital in an effort to ensure maximum value creation.
Active Portfolio Management. Continuously evaluate our portfolio and strictly adhere to data-driven "go" and "no go" decisions to advance programs with the highest probability of success.
Rapid Execution. Advance selected programs quickly to "go" and "no go" decisions and value inflection points.
Strategic Partnerships. Seek strategic partnerships to maximize value generation.

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Our Strategy
Our strategy is to use our discovery and clinical development infrastructure to continue advancement of our healthcare business with the goal of improving outcomes for patients with significant unmet medical needs. The key elements of our strategy include:
Advancing our lead programs and seeking opportunities to maximize their value. We are actively advancing our lead programs, including: PRGN-3005 and PRGN-3006, which are built on our UltraCAR-T platform; AG019, which is built on our ActoBiotics platform; and INXN-4001 non-viral triple effector plasmid DNA, which is built on our UltraVector platform. PRGN-3005 is in a Phase 1 clinical trial for advanced ovarian cancer patients and PRGN-3006 is in a Phase 1/1b clinical trial for patients with relapsed or refractory AML or high-risk MDS. The primary objective of the ongoing clinical studies is to determine the safety and maximum tolerated dose, or MTD, of PRGN-3005 and PRGN-3006. AG019 is currently being studied in a Phase 1b/2a multi-center study conducted in participants with clinical recent-onset T1D. INXN-4001 is being evaluated in a Phase 1 study to evaluate the safety of retrograde coronary sinus infusion of INXN-4001 in outpatient left ventricular assist device, or LVAD, recipients. We intend to efficiently pursue these programs toward clinical proof-of-concept and commercialization, whether independently or with collaborators.
Strategically pursuing our preclinical programs. We have a robust pipeline of preclinical programs that we are pursuing in order to drive long-term value creation. We exercise discipline in our portfolio management by systematically evaluating data from our preclinical programs in order to make rapid "go" and "no go" decisions. Through this process, we can more effectively allocate resources to programs that we believe show the most promise and advance such programs to clinical trials.
Leveraging our technology and therapeutic platforms across indications. Through the application of our suite of proprietary and complementary synthetic biology technologies, we believe we can create optimized biological processes and overcome the limitations of traditional techniques, leading to precision medicines that are manufactured more efficiently and cost-effectively with superior performance. We continually assess the application of these technologies across therapeutic areas to determine where we can develop and provide unique solutions to challenges facing existing therapies.
In order to sharpen our focus on healthcare, solidify our capital position, and place our healthcare assets in the optimal position to succeed, in January 2020, we divested a number of our non-healthcare assets in two transactions to TS Biotechnology Holdings, LLC, or TS Biotechnology, a limited liability company managed by Third Security, LLC, or Third Security, which is a related party, and to Darling Ingredients, Inc., or Darling. These sales are referred to collectively herein as the Transactions. We also changed our company name to Precigen, Inc. See "Non-Healthcare Assets and Transition to our Core Healthcare Business Model" below.
Our Healthcare Subsidiaries
Our healthcare business is operated by our wholly owned subsidiaries PGEN Therapeutics, Inc., or PGEN or PGEN Therapeutics, Precigen ActoBio, Inc., or ActoBio, and Exemplar Genetics, Inc., or Exemplar, and also includes our majority ownership interest in Triple-Gene LLC, or Triple-Gene, as well as equity and royalty interests in therapeutics and therapeutic platforms from companies not controlled by us.

PGEN Therapeutics, Inc.
PGEN (formerly Precigen, Inc.) is a dedicated discovery and clinical stage biopharmaceutical company advancing the next generation of gene and cell therapies using precision technology to target urgent and intractable diseases in immuno-oncology, autoimmune disorders and infectious diseases. PGEN operates as an innovation engine, progressing a preclinical and clinical pipeline of well-differentiated therapies toward clinical proof-of-concept and commercialization. Our most advanced programs within PGEN include two therapies built on our UltraCAR-T platform, PRGN-3005, which is in a Phase 1 clinical trial for the treatment of advanced ovarian cancer, and PRGN-3006, which is in a Phase 1/1b clinical trial for the treatment of relapsed or refractory AML and higher-risk MDS. In addition to our clinical programs, PGEN has a robust preclinical pipeline that includes PRGN-2009, an "off-the-shelf" therapy for human papillomavirus-positive, or HPV+, cancers developed using our AdenoVerse Immunotherapy platform, additional UltraCAR-T therapeutics for various cancers, additional "off-the-shelf" AdenoVerse Immunotherapeutics for infectious diseases, an AdenoVerse cytokine therapy for solid tumors, and PRGN-5001, a multifunctional therapeutic for solid tumors.
Precigen ActoBio, Inc.
ActoBio is pioneering a proprietary class of microbe-based biopharmaceuticals that enable expression and local delivery of disease-modifying therapeutics. We refer to these microbe-based biopharmaceuticals as ActoBiotics. Our ActoBiotics platform is a unique delivery platform precisely tailored for specific disease modification via local delivery directly to the relevant tissue. ActoBiotics combine the advantages of highly selective protein-based therapeutic agents with local delivery by the well-characterized and food-grade bacterium Lactococcus lactis, or L. lactis. ActoBiotics can be delivered orally in a capsule, through an oral rinse or in a topical solution. We believe ActoBiotics have the potential to provide superior safety and efficacy via the sustained release of appropriate quantities of select therapeutic agents as compared to injectable biologics, while reducing the side effects commonly attributed to systemic delivery and corresponding peaks in concentration. ActoBio, both independently and through a collaboration, has a clinical pipeline and a portfolio of candidates available for clinical development across a number of potential indications. ActoBio's most advanced internal pipeline candidate, AG019, is currently in a Phase 1b/2a clinical trial for the treatment of recent onset T1D. Another clinical candidate from ActoBio's platform, AG013, is being developed by our partner Oragenics, Inc., or Oragenics, a Florida corporation, and is in a Phase 2 clinical trial for the treatment of OM.
Triple-Gene LLC
Triple-Gene is a clinical stage gene therapy company focused on developing advanced treatments for complex cardiovascular diseases. Triple-Gene's approach is to develop a holistic treatment for heart failure through improvements in angiogenesis, calcium homeostasis-associated cellular energetics, reductions in inflammatory signals, and the activation/recruitment of stem cells to support heart remodeling. Triple-Gene's most advanced candidate, INXN-4001, a non-viral triple-effector plasmid designed for constitutive expression of human S100A1, SDF-1a, and VEGF-165 genes to address multiple pathways of heart failure, is currently in a Phase 1 clinical trial.
Exemplar Genetics, LLC
Exemplar is committed to enabling the study of life-threatening human diseases through the development of MiniSwine Yucatan miniature pig research models and services, as well as enabling the production of cells and organs in its genetically engineered swine for regenerative medicine applications. Historically, researchers have lacked animal models that faithfully represent human diseases. As a result, a sizeable barrier has blocked progress in the discovery of human disease mechanisms; novel diagnostics, procedures, devices, prevention strategies and therapeutics; and the ability to predict in humans the efficacy of those next-generation procedures, devices, and therapeutics. Exemplar's MiniSwine models are genetically engineered to exhibit a wide variety of human disease states, which provides a more accurate platform to test the efficacy of new medications and devices.
Our Technology and Therapeutic Platforms
Our Technology Platforms
We leverage a diverse portfolio of proprietary technology platforms to accelerate research and development efforts to deliver the promise of precision medicine. Precigen's innovative technology platforms enable us to construct powerful, multigenic programs that we believe will drive efficacy, deliver multigenic constructs using viral, non-viral and microbe-based approaches that we believe will drive lower costs, and control expression of genes and performance of therapeutics in vivo for precise targeting of complex malignancies. The following discussion describes the technology platforms that we use for our approach to precision medicine.

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We believe that the development of innovative biological products requires a deep understanding of the complexity of cellular processes and the construction of improved gene programs developed in conditions reflective of the natural environment. We accomplish the design of optimized gene programs for our therapeutic approaches via our UltraVector® platform that incorporates advanced DNA construction technologies and computational models to design and assemble genetic components into complex gene expression programs. UltraVector-enabled matrices facilitate rapid identification of components that yield desired gene expression. Our library of characterized genetic components and associated functional characterization data enable construction of gene programs for optimized expression of multiple effector genes. Expression of our membrane-bound interleukin-15, or mbIL15, gene improves functional characteristics of certain immune cells, including T cells, by enhancing their potential for expansion and persistence.
We deliver gene programs via viral, non-viral, and microbe-based approaches, including Sleeping Beauty, AttSite recombinases, gorilla adenoviral vectors, from our AdenoVerse library, and L. lactis. Sleeping Beauty is a non-viral transposon/transposase system licensed from the University of Texas MD Anderson Cancer Center that stably reprograms immune cells by inserting specific DNA sequences into the genome. The Sleeping Beauty system has been shown to promote random integration in the genome without insertion bias, which contrasts with the predilection of lentiviral vectors for integration at transcriptionally active sites. We believe that this non-viral system may confer benefits including a reduction of the risk of genotoxicity. Precigen has made significant improvements to the Sleeping Beauty system by optimizing gene elements, genetic payload capacity, and efficiency of delivery, which provides a system tailored to our multigenic UltraCAR-T platform. Our AttSite recombinases, which break and rejoin DNA at specific sequences in a unidirectional, irreversible fashion to direct integration of a transgene into the host cell genome, allow for stable, site-specific gene integration. Genetically engineered adenoviruses (a common group of viruses) called adenovectors that are designed to insert genes into cells are an important part of our technology platforms. Our AdenoVerse technology platform is composed of a library of engineered adenovector serotypes that yield greater tissue specificity and target selection as compared to known human Ad5 adenovectors. This includes our gorilla adenovectors, which provide a potential competitive advantage in their large payload capacity, ability for repeat administrations and generation of robust antigen-specific immune responses. L. lactis is a food-grade bacterium with a long history of safe use that we modify to deliver biologics at mucosal sites via oral administration.
The final component of our approach to precision medicine is our ability to control gene expression and regulation using the RheoSwitch, kill switches, and tissue-specific promoters. The RheoSwitch Therapeutic System, our inducible gene switch system, is the most clinically advanced gene switch system and provides quantitative dose-proportionate regulation of the amount and timing of target protein expression in response to an orally available activator ligand, veledimex. In addition, we have developed a suite of kill switches, which allow us to selectively eliminate cell therapies in vivo after their administration, to improve the safety profile of our cell therapies. We are developing tissue-specific promoters to only induce gene expression locally in cells or tissues of therapeutic interest.
We have leveraged our proprietary and complementary technology platforms discussed above and our expertise in immunology to develop key therapeutic platforms, including UltraCAR-T, AdenoVerse, and ActoBiotics, to address multiple pathways of complex disorders with significant unmet medical needs and to realize our core promise of precision medicine.
Our Therapeutic Platforms
UltraCAR-T®
Recent technological advances have revolutionized the field of immunotherapy for the treatment of cancer. Of the many

immunotherapy approaches, chimeric antigen receptor T, or CAR-T, cell therapies in particular have shown remarkable responses in cancer patients with hematological malignancies. These therapies rely on the modification of T cells with chimeric antigen receptors to enable those T cells to bind to specific antigens on the patient's tumor cells and kill the tumor cells. Concerns remain, however, regarding complex and lengthy manufacturing processes and the safety profile of CAR-T cell therapies. Furthermore, conventional CAR-T cell therapies have faced a number of challenges in the treatment of solid tumors due to antigen heterogeneity, the suppressive nature of the tumor microenvironment and the limited persistence of CAR-T cells. Current approaches to CAR-T manufacturing require extensive ex vivo expansion following viral vector transduction to achieve clinically relevant cell numbers. We believe such an ex vivo expansion process can result in the exhaustion of CAR-T cells prior to their administration, limiting their potential for persistence in patients after administration. Furthermore, lengthy and complex manufacturing of current CAR-T approaches results in high manufacturing costs and long delays in providing the CAR-T treatment to cancer patients. Time is of the essence for advanced cancer patients and even modest delays in treatment can adversely affect outcomes.
Our UltraCAR-T platform is fundamentally differentiated from the competition and we believe it has the potential to address the shortcomings of current technologies and disrupt the CAR-T treatment landscape by increasing patient access through shortening manufacturing time from weeks to days, decreasing manufacturing-related costs, and improving outcomes.
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The key advantages of UltraCAR-T versus the traditional CAR-T approaches include:
Advanced non-viral multigenic delivery system
We have optimized and advanced the Sleeping Beauty system using our UltraVector® DNA construction platform to produce multigenic UltraCAR-T cells. As a result of this optimization, our UltraCAR-T cells are precision-engineered to produce a homogeneous cell product that simultaneously co-expresses antigen-specific CAR, kill switch, and mbIL15 genes in any genetically modified UltraCAR-T cell. This design differentiates our UltraCAR-T platform from our competition and reduces the developmental risk because product homogeneity is a critical consideration for later stages of clinical development and subsequent commercialization. We utilize our protein engineering and immunology expertise to optimize antigen binding and signaling domains of each CAR based on the target antigen expression profile and cancer indication. We have also included our proprietary kill switch technology in our UltraCAR-T cells to improve the safety profile.
Enhanced persistence and elimination of ex vivo expansion step due to expression of mbIL15
The key driver of improved UltraCAR-T cell performance is our proprietary cytokine mbIL15. The expression of mbIL15 enhances in vivo expansion in the presence of tumor antigens and prevents T cell exhaustion to maintain a less differentiated, stem-cell like memory phenotype leading to longer persistence of UltraCAR-T cells. This yields an enduring anti-tumor response that outlasts conventional CAR-T cells, which we believe is essential to successfully targeting solid tumors. This design allows us to eliminate the need for desired resultsany ex vivo expansion prior to administration, a requirement that is a major limitation of current CAR-T treatments.
Scalable, rapid, decentralized manufacturing process
Another key differentiator with the UltraCAR-T therapeutic platform is our decentralized and rapid proprietary manufacturing process, which allows us to manufacture overnight at a medical center's current good manufacturing practices, or cGMP, facility and reinfuse the patient the following day after gene transfer. The decentralized nature of this process allows us to scale beyond the confines of a dedicated facility. We are the first company to implement non-viral, decentralized, rapid manufacturing of CAR-T cells in the clinic and have validated our proprietary UltraCAR-T manufacturing process in practice by infusing patients one day after gene transfer at two different sites in our ongoing clinical trials. Our UltraCAR-T manufacturing process provides a

significant potential competitive advantage in the timeline and cost required to manufacture and deliver CAR-T therapies to patients as compared to current treatment approaches that require large, centralized facilities to support manufacturing of a relatively small number of treatments.
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"Off-the-shelf" AdenoVerse™ Immunotherapy
Our AdenoVerse Immunotherapy platform utilizes a library of proprietary adenovectors for the efficient gene delivery of therapeutic effectors, immunomodulators, and vaccine antigens. We have established proprietary manufacturing cell lines and production methodologies for AdenoVerse Immunotherapies, which we believe is easily scalable for commercial supply. We believe that our proprietary gorilla adenovectors, part of the AdenoVerse technology, have superior performance characteristics as compared to current competition, including standard human adenovirus serotype 5,or Ad5, rare human adenovirus types and other non-human primate adenovirus types.
The key advantages of AdenoVerse Immunotherapy platform include:
Large genetic payload capacity
Our gorilla adenovectors have a larger genetic payload capacity than other viral vectors that currently dominate the gene therapy field, allowing us to engineer multigenic therapeutic candidates to treat complex diseases. Currently, we are able to engineer up to a 12kb genetic payload using our gorilla adenovectors, providing us with a significant advantage to express multiple genes in a controlled manner.
Repeat administration
Unlike most competing approaches, our gorilla adenovectors are suitable for repeat administration, which can lead to boosted antibody and T cell responses. This suitability for repeat administration stems from the very low to non-existent seroprevalence of and limited immunity to gorilla adenoviruses in the human population. For example, our gorilla adenovector variant GC46 has been shown to have a seroprevalence of less than 6% in the United States, with low seropositive titers. In comparison, the seroprevalence of Ad5 in the United States is estimated to be 58%, with most of seropositive individuals having high titers. This high Ad5 seroprevalence limits the effectiveness of Ad5-based adenovectors in clinical studies. The rare and weak pre-existing immunity against gorilla adenovectors may therefore provide an advantage in clinical applications as compared to existing competition.
Inability to replicate
Our gorilla adenovectors are engineered and manufactured using a process that ensures the production of replication incompetent adenoviral therapeutic candidates with no cytopathic or cytotoxic effect in normal human cells. This has been achieved by engineering deletions of two regions essential for replication of the adenoviral genome. The use of a proprietary complementing cell line provides the necessary genetic elements for manufacture of AdenoVerse Immunotherapy candidates. We believe our AdenoVerse Immunotherapy candidates have reduced regulatory and commercialization risk due to their design which renders

them incapable of replicating and therefore less susceptible to manufacturing failures. Furthermore, our gorilla adenovector manufacturing process has yielded therapeutic candidates at a very high titer and has reduced the complexity of manufacturing.
Durable antigen-specific immune response
Gorilla adenovectors have been shown to generate high-level and durable antigen-specific neutralizing antibodies and effector T cell immune responses as well as an ability to boost these antibody and T cell responses via repeat administration.
ActoBiotics®
Our ActoBiotics platform is a unique therapeutic platform precisely tailored for specific disease modification with the potential for superior efficacy and safety via oral or topical delivery of disease-modifying therapeutics directly to the relevant local mucosal sites. ActoBiotics work via genetically modified bacteria that deliver proteins and peptides at mucosal sites, rather than the insertion of one or more genes into a human cell by means of a virus or other delivery mechanism. By foregoing this insertion, Actobiotics allow "gene therapy" without the need for cell transformation.
The key advantages of ActoBiotics include:
Food-grade bacterium with easy genetic manipulation
ActoBiotics combine the advantages of highly selective protein-based therapeutic agents with local delivery by the well-characterized and food-grade bacterium with L. lactis, which has a long history of safe use. ActoBiotics are generated by genetically modifying L. lactis via chromosomal integration through targeted double homologous recombination to express and release a variety of highly versatile biological moieties. Multiple therapeutic agents, such as proteins, peptides, and antibodies, can be incorporated into a single ActoBiotics therapeutic, enabling the simultaneous targeting of multiple pathways in one disease. The L. lactis host is also engineered for environmental containment, thus preventing the spread of bacteria outside the human body.
Cost-effective and scalable manufacturing
We have established an efficient and reliable cGMP manufacturing process for the production of ActoBiotics that we believe is easily scalable for commercial supply. The manufacturing process involves fermentation of genetically modified L. lactis to generate active ingredient, followed by concentration and freeze-drying. The process does not require the costly purification required to produce conventional biologics.
Convenient delivery method
ActoBiotics can be delivered to the oral cavity through a mouthwash, intestinally via a capsule, or through a topical formula. Physiological dosing is low, and our ActoBiotics product candidates have been well-tolerated in pre-clinical and clinical studies. As compared to conventional biologics, we believe ActoBiotics have the potential to provide superior safety and efficacy via the sustained release of appropriate quantities of select therapeutic agents while reducing the side-effects commonly attributed to systemic delivery and corresponding peaks in concentration of conventional biologics.
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Our Product Pipeline
We are leveraging our suite of technologies along with our internal research and development expertise to develop several preclinical and clinical stage programs.

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PRGN-3005
PRGN-3005 is a first-in-class, autologous CAR-T therapy that utilizes our UltraCAR-T platform to simultaneously co-express a CAR targeting MUC16, mbIL15, and kill switch genes. We have designed our CAR to improve signaling, and selected a specific anti-MUC16 binding domain and optimized its affinity to preferentially target PRGN-3005 to tumor cells.
MUC16 is an extremely large, type I transmembrane cell surface glycoprotein that plays a key role in the pathogenesis of ovarian cancer by promoting an increase in cell proliferation, metastasis, resistance to chemotherapy and immune system evasion by cancer cells. MUC16 is overexpressed on more than 80% of ovarian tumors, but has limited expression in healthy tissues, making it an attractive CAR-T target for ovarian cancer.Other cancers with known overexpression of MUC16 include pancreatic, breast, lung, and bladder cancer.
PRGN-3005 is in a Phase 1 clinical trial for the treatment of advanced ovarian cancer. Advanced ovarian cancer is often fatal, with Stage IV survival rates as low as 20%, and has limited treatment options. Patients with ovarian cancer represent a large population, with approximately 300,000 patients diagnosed worldwide annually, including 22,000 in the US alone.
In preclinical in vitro studies, PRGN-3005 UltraCAR-T cells have shown robust MUC16-specific cytotoxicity of ovarian cancer cell lines, a stem-cell like memory phenotype and significant improvement in their longevity even in the absence of exogenous cytokines as compared to conventional CAR-T cells. PRGN-3005 UltraCAR-T cells have shown significantly superior anti-tumor response in mouse models of ovarian cancer compared to mice treated with a saline solution or conventional MUC16 CAR-T cells lacking mbIL15 expression. Administration of PRGN-3005 UltraCAR-T cells one day after non-viral gene transfer eliminated ovarian tumors in all treated mice. Furthermore, PRGN-3005 UltraCAR-T cells showed significantly superior expansion and persistence in ovarian tumor-bearing mice compared to conventional CAR-T cells.
We initiated a dual-arm, non-randomized, open-label Phase 1 clinical trial of PRGN-3005 in the second half of 2019 in patients with advanced, recurrent platinum-resistant ovarian, fallopian tube or primary peritoneal cancer. We are conducting this trial in collaboration with The University of Washington and The Fred Hutchinson Cancer Research Center, leaders in immunotherapy and CAR-T treatments. Patients in this investigator-initiated dose escalation trial receive either intraperitoneal, or IP (Arm A), or intravenous, or IV (Arm B), administration of PRGN-3005. The primary objectives of this trial are to assess the safety and MTD of PRGN-3005. For both routes of administration, PRGN-3005 will follow a 3x3 dose escalation pattern. We expect to enroll up to 41 patients total in this study.

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In November 2019, we announced that we have successfully completed dosing of patients in the first dose level of the IP arm. Our consistent ability to successfully manufacture UltraCAR-T cells at a medical center confirms the validity of our rapid, decentralized approach to manufacturing. Moreover, we have observed encouraging preliminary findings of PRGN-3005 UltraCAR-T kinetics in patients. We expect to announce initial data from the IP arm in the second half of 2020.
PRGN-3006
PRGN-3006 is a first-in-class autologous CAR-T therapy that utilizes our UltraCAR-T platform to co-express a CAR to target CD33, mbIL15 and a kill switch for better precision and control.
CD33, also known as Siglec-3, is a single pass transmembrane glycoprotein and a member of the sialic acid-binding immunoglobulin-like lectin super-family. CD33 is an attractive target for immunotherapy because it is over-expressed on AML blasts and leukemic stem cells, or LSCs, but is not expressed on normal blood stem cells, also known as hematopoietic stem cells. Approximately 85-90% of AML patients express CD33 on their tumor cells. In addition to broad expression on AML blasts, CD33 is expressed on LSCs underlying AML.LSCs are thought to be more resistant to chemotherapy treatment and to be capable of reinitiating the disease resulting in high relapse rates for AML. In healthy subjects, CD33 is primarily expressed on normal myeloid precursors, colony-forming cells, monocytes, and maturing granulocytes. Since CD33 is not expressed outside the hematopoietic system or on normal hematopoietic stem cells, it is an attractive target for treatment of AML.
AML is among the most common types of leukemia in adults with approximately 20,000 AML patients diagnosed in the US annually. AML is a heterogeneous disease with 50-70% relapse rates and rapid progression. The prognosis for patients with AML is poor, with an average five-year survival rate of approximately 25%. More than 10,000 cases of higher-risk MDS are diagnosed annually in the United States. Due to the aggressive nature of AML progression, rapid availability of treatment is of even greater importance in this patient population, and our non-viral UltraCAR-T manufacturing process represents a significant advantage over current approaches that require long lead times for manufacturing.
In preclinical studies, PRGN-3006 demonstrated robust expansion in the presence of CD33 antigen, lack of autonomous expansion in the absence of CD33 and prolonged persistence in the absence of exogenous cytokines. PRGN-3006 exhibited target-specific killing of CD33+ tumor cells as well as a significant release of inflammatory cytokines such as IFNγ, upon co-culture with AML tumor cells. PRGN-3006 cells were specifically eliminated by kill switch activator treatment, displaying functionality of the kill switch, which is intended to improve the safety profile of PRGN-3006. In vivo, a single administration of PRGN-3006 UltraCAR-T™ cells only one day after gene transfer effectively eliminated the tumor burden and significantly improved overall survival of tumor bearing mice compared to CAR-T cells lacking mbIL15 expression (conventional CAR-T) in an aggressive xenograft model of AML. PRGN-3006 demonstrated engraftment and significantly higher expansion and persistence in mice compared to conventional CAR-T cells, which lack mbIL15 expression.
In 2019, we initiated a dual-arm, non-randomized, investigator-initiated Phase 1/1b clinical trial of PRGN-3006 delivered via intravenous infusion in patients with relapsed or refractory AML and higher-risk MDS. We are conducting this trial in collaboration with Moffitt Cancer Center, a pioneer in CAR-T clinical development.In the 3x3 dose escalation phase, patients will be treated in one of the two arms: Arm 1 will receive CAR-T cell infusion without prior lymphodepletion, and Arm 2 will receive lymphodepleting chemotherapy. The dose escalation phase of each arm will be followed by a dose expansion phase at the MTD. Because our UltraCAR-T cells have the potential for enhanced in vivo expansion and persistence due to expression of mbIL15, we are evaluating administration of PRGN-3006 in patients without prior lymphodepletion. The primary objective of this trial is to assess the safety of PRGN-3006 and determine the MTD.

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In November 2019, we announced that we have successfully completed dosing of patients in the first dose level of the "no lymphodepletion" arm (Arm 1). Our ability to successfully manufacture UltraCAR-T cells for patients at a second medical center in this trial has further validated our rapid, decentralized approach to manufacturing. PRGN-3006 was granted orphan drug designation for the treatment of AML in December 2019 by the U.S. Food and Drug Administration, or FDA.
We have observed encouraging preliminary findings of PRGN-3006 UltraCAR-T kinetics in patients. We are currently enrolling patients in the second cohort of the "no lymphodepletion" arm (Arm 1) and the first cohort of the "lymphodepletion" arm (Arm 2) of the trial, and expect to announce initial data from the trial in the second half of 2020.
AG019
AG019 is a first-in-class disease modifying antigen-specific immunotherapy for the prevention, delay, or reversal of T1D. AG019 is an easy-to-take capsule formulation of ActoBiotics engineered to deliver the autoantigen human proinsulin, or PINS, and the tolerance-enhancing cytokine human interleukin-10 to the mucosal lining of gastro-intestinal tissues in patients with T1D. We believe this design can reduce T1D pathology by reestablishing immunological tolerance to islet antigens via the production of regulatory T, or Treg, cells.
T1D represents a highly unmet medical need, with approximately 132,000 patients, most commonly children and young adults, diagnosed each year. In T1D, the immune system destroys insulin-producing beta cells in the pancreas, creating a blood glucose imbalance and numerous symptoms, including polyuria, polydipsia, polyphagia, weight loss, lassitude, nausea and blurred vision. The current treatment standard for T1D consists of exogenous insulin along with diet and lifestyle modification, but no disease-modifying treatment is available. We believe that AG019 has the potential to address the unmet medical need for disease modifying treatment in T1D.
Preclinical studies in mice have shown that AG019, in association with a short-term treatment with a low-dose anti-CD3 monoclonal antibody, induced stable reversion to normal blood sugar levels and reversed the disease in diabetic mice treated at an industrial scale.early stage. Furthermore, AG019 treatment induced accumulation and proliferation of PINS-specific FoxP3+ Treg cells in the pancreas and peripheral lymph nodes.
WorkingAG019 is currently being studied in a Phase 1b/2a multi-center trial in participants with clinical recent-onset T1D with a residual functional mass of insulin-producing beta cells. The primary objective of this study, which we initiated in October 2018, is to assess the safety and tolerability of different doses of AG019 alone as well as AG019 in association with teplizumab, an anti-CD3 monoclonal antibody in development by Provention Bio, Inc. for the interception and prevention of clinical T1D, in both adolescent and adult patient groups. We have completed treatment in the open-label Phase 1b monotherapy portion of the trial, in which four cohorts consisting of adolescent or adult patients were treated with two or six AG019 capsules daily for eight weeks. Enrollment is ongoing in the randomized, double-blind Phase 2a combination portion. In this portion of the trial, patients will receive daily IV infusions of teplizumab during the first 12 days of AG019 treatment and two or six AG019 capsules daily for eight weeks. We expect to announce interim data from this trial in the third quarter of 2020.
INXN-4001
INXN-4001, a non-viral triple effector plasmid based on our UltraVector platform designed for the constitutive expression of human S100A1, SDF-1a, and VEGF-165, is engineered to address multiple pathways of heart failure. Utilizing a single plasmid comprising all three genes, instead of each individual gene on separately delivered plasmids, INXN-4001 can control for delivery

and ensure expression of three genes in all transfected cells.
Heart failure represents a significant unmet medical need and a major economic burden worldwide. There are approximately 25 million heart failure patients worldwide, of whom 6 million are in the United States. Heart failure is the number one cause of hospitalization in patients aged 65 years and older, and 50% of heart failure patients die within five years after diagnosis. Heart failure is a complex and multifaceted disease most often resulting from the intersection of multiple genetic predispositions with negative environmental factors. Existing treatments improve quality of life in the short-term and offer some improvement in long-term survival at high cost and with associated complications. We believe that developing a holistic and clinically relevant treatment for heart failure will require improvements in numerous areas, including angiogenesis, calcium homeostasis-associated cellular energetics, reductions in inflammatory signals, and the activation or recruitment of stem cells to support heart remodeling.
Preclinical studies of INXN-4001 showed significant improvement in beat rate, contractile duration and contraction rate of human induced pluripotent stem cell-derived cardiomyocytes in a dilated cardiomyopathy model to the levels demonstrated by control cells and did not result in increased cell death compared to controls. Coronary sinus delivery of INXN-4001 in a large animal ischemic heart failure model showed decreased left ventricular end systolic volume and increased absolute mean ejection fraction, which are indicators of myocardial function, as well as no increase in arrhythmias compared to controls.
INXN-4001 is in a Phase 1 clinical trial, which is a first-in-human, open label study designed to evaluate the safety of retrograde coronary sinus infusion of INXN-4001 in outpatient LVAD recipients. Twelve stable patients with implanted LVAD for mechanical support of end stage heart failure were allocated into two cohorts of six subjects each to evaluate the safety of infusing the same amount of INXN-4001 (80mg) in two volumes (40mL and 80mL) at a rate of 20mL per minute. We have completed dosing of patients in this trial.
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The initial data shows evidence of improvement in cardiac function. We have observed beneficial trends in the distance walked during the Six Minute Walk Test and in the Left Ventricular Ejection Fraction heart function measure after six months post INXN-4001 treatment. There have been no treatment-related adverse events reported to date. We expect to have complete data for this Phase 1 study in 2020.
Preclinical Programs
We have a robust pipeline of preclinical programs that we are pursuing in order to drive long-term value creation. Our pipeline includes a number of product candidates utilizing our "off-the-shelf" AdenoVerse immunotherapy, UltraCAR-T and ActoBiotics platforms that we expect to be in studies enabling Investigational New Drug applications, or INDs, or to have moved into Phase 1 clinical trials in 2020.
We are developing three product candidates utilizing our AdenoVerse Immunotherapy platform. Of these, PRGN-2009, an "off-the-shelf" immunotherapy for which we expect to initiate a Phase 1 clinical trial in 2020, is being developed for the treatment of

HPV+ cancers. HPV+ cancers represent a significant health burden in indications such as head and neck, cervical, vaginal and anal cancer. Our AdenoVerse platform allows us to optimize the HPV antigen design for improved immune response, which differentiates our therapy from the competition. Our preclinical research has shown that PRGN-2009 immunotherapy effectively controlled solid tumors in a murine model of HPV+ head and neck cancer. PRGN-2009 is designed to activate the immune system to recognize and target HPV+ solid tumors using a gorilla adenovector with a large payload capacity and the ability for repeat injections. PRGN-2009 is currently under development through a cooperative research and development arrangement, or CRADA, with Dr. Jeffrey Schlom, a world-renowned investigator in immuno-oncology, at the National Cancer Institute. This CRADA has allowed us to rapidly and cost-effectively complete preclinical work, and we expect it to have similar benefits for our forthcoming Phase 1 clinical trial. It also provides for potential expansion to other targets and combinations.
We are also developing immuno-oncology product candidates based on our Multifunctional Therapeutic platform. This platform allows us to simultaneously target multiple pathways to address senescence and trafficking of T lymphocytes in the tumor microenvironment. PRGN-5001 Multifunctional Therapeutic has exhibited the ability to enhance T cell activation and superior anti-tumor effects compared to anti-PD1 treatment in different humanized mouse models, including colorectal, lung, and cervical cancers, that do not respond well to anti-PD1 treatments. The preclinical data supports the potential for expansion to multiple targets. We plan to initiate IND-enabling studies for PRGN-5001 in 2020 and we are evaluating the optimal path forward for our Multifunctional Therapeutic platform, including ongoing partnership discussions.
We also have a number of other potential product candidates in our preclinical pipeline and, consistent with our commitment to actively manage our portfolio programs, we plan to systematically evaluate data from our preclinical programs in order to make rapid "go" and "no go" decisions with respect to those candidates. Through this process, we will allocate resources to programs that we believe show the most promise and advance such programs to the clinic.
Partnered Programs
We also are engaged in a number of collaborations, pursuant to which our platforms are being used to advance additional product candidates.
AG013 (Oragenics, Inc.)
ActoBio is in collaboration with Oragenics for the continued development and commercialization of AG013 for use in the treatment of OM in humans through the administration of an effector via genetically modified bacteria. AG013 has been granted fast track designation by the FDA. AG013, built on the ActoBiotics platform, is a convenient and well-tolerated oral rinsing solution to deliver human Trefoil Factor 1, or hTFF1, via genetically modified L. lactis. The L. lactis is freeze dried and then mixed with a raspberry-flavored solution that the patient swishes after every meal. The swishing causes the delivery of hTFF1 to buccal mucosa, which is intended to prevent mucosal tissue damage and induce subsequent repair.
OM is a side effect of chemo- or radio-therapy in cancer patients caused by the breakdown of the mucosal lining and results in the formation of painful oral ulcers. This condition leads to nutritional deficits due to an inability to eat and drink. There are highly unmet medical needs for the prevention and treatment of OM, with no drug approved to prevent the condition in the broad cancer population and few treatments with confirmed efficacy available to manage OM. There are approximately 770,000 cancer patients annually in the United States that are at increased risk of developing OM.
AG013 was shown to be well-tolerated by head and neck cancer patients that were receiving induction chemotherapy in a completed Phase 1b single blind, placebo-controlled study in head and neck cancer patients receiving induction chemotherapy. The Phase 1b data showed that patients receiving AG013 experienced fewer days with ulcerative OM, or UOM, and fewer unscheduled office and emergency room visits as a result of UOM, as compared to patients that received the placebo. A total of 29% of patients treated with AG013 reported fewer than two days of UOM while all placebo-treated patients experienced more than two days of UOM. In addition, a 40% reduction in unscheduled office and emergency room visits compared to placebo was observed, as well as a 35% reduction in percentage of days with UOM compared to placebo.

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AG013 is now in a Phase 2 clinical trial for the treatment of oral mucositis in patients with head and neck cancer. We expect interim data from this Phase 2 study in the first half of 2020. AG013 has been granted fast track designation by the FDA and orphan drug designation by the European Union. Pursuant to the collaboration with Oragenics, ActoBio is entitled to certain milestone payments and royalties related to the development and commercialization of AG013.
FCX-007 and FCX-013 (Castle Creek Pharma)
We have a collaboration with Fibrocell Sciences, Inc., which is now a wholly owned subsidiary of Castle Creek Pharmaceutical Holdings, Inc., to advance product candidates FCX-007, which initiated a pivotal Phase 3 clinical trial for the treatment of recessive dystrophic epidermolysis bullosa (RDEB) in July 2019, and FCX-013, which is currently enrolling the Phase 1 portion of its Phase 1/2 clinical trial for the treatment of localized scleroderma. FCX-007 and FCX-013 each have been granted Orphan Drug designation, Rare Pediatric Disease designation and Fast Track designation by the FDA. The FDA has also granted FCX-007 Regenerative Medicine Advanced Therapy designation. Pursuant to the collaboration, we license our technology platforms to Fibrocell for use in certain specified fields and in exchange we have received and are entitled to certain access fees, milestone payments, royalties, and sublicensing fees related to the development and commercialization FCX-007 and FCX-013.
CGF166 (Novartis AG)
We are party to a research collaboration and license agreement through a wholly owned subsidiary with Novartis Institutes for BioMedical Research, Inc., or Novartis, for the discovery and development of novel treatments for hearing loss and balance disorders. Under the terms of the agreement, our wholly owned subsidiary licensed world-wide rights to our preclinical hearing loss and balance disorders program to Novartis in exchange for an upfront payment and certain milestone payments related to the development and commercialization of certain licensed products. We are also entitled to tiered royalties on the annual net sales of the licensed products should any achieve commercialization. Currently, one of our product candidates, CGF166, is in a Phase 1/2 clinical trial for the treatment of hearing loss and balance disorders in collaboration with Novartis under this agreement.
Our Manufacturing Strategy
A core focus of our research and development program to date has been reducing risk, minimizing cost, and addressing drawbacks associated with conventional manufacturing approaches with the goal of improving safety and efficacy. As such, we have both developed therapeutic candidates that reduce manufacturing risk by eliminating the need for centralized manufacturing, and

strategically invested in internal manufacturing capabilities to de-risk our clinical production.
UltraCAR-T Manufacturing
Our development of rapid and successful overnight manufacturing of UltraCAR-T therapies at medical centers signifies a paradigm shift in CAR-T therapy by eliminating a multitude of manufacturing and timing risks associated with conventional CAR-T therapies. Our proprietary technologies and unique manufacturing approach rely on non-viral plasmid DNA and the elimination of ex vivoexpansion, leading to reduced manufacturing time and cost. This manufacturing process has significant competitive advantages over conventional approaches, and our intent is for it to take place directly in numerous treatment centers, which can improve the accessibility of our therapies for patients. See "Our Therapeutic Platforms - UltraCAR-T" for more information.
cGMP Manufacturing Facility
One of our central differentiating factors and competitive gene therapy advantages is our investment in internal cGMP manufacturing capabilities in Germantown, Maryland, with the aim to reduce a myriad of risks that can impact manufacturing of viral vectors. These include technology transfer risks when outsourcing to contract manufacturing organizations as well as process and timing risks. This modular cGMP facility with a small footprint was designed with agility and control in mind, focusing on rapid manufacturing and the ability to scale production appropriately to meet early-stage clinical trial needs of gene therapy vectors; especially our AdenoVerse based therapeutics. We are able to generate greater than 1,000 doses of early phase clinical trial material at this facility at an expedited timeline and reduced cost compared to contract manufacturing organizations. As a result, we feel we are in a position to be in control of meeting our gene therapy manufacturing needs for our early-phase clinical trials.
ActoBiotics Manufacturing
Our microbe-based therapeutic platform, ActoBiotics, can deliver protein-based therapeutic agents locally using well-characterized and safe food-grade bacterium L. lactis. We have established an efficient and reliable cGMP manufacturing process for the production of ActoBiotics that we believe is easily scalable for commercial supply. The manufacturing process involves fermentation of genetically modified L. lactis to generate the active ingredient, followed by concentration and freeze-drying. This process provides a competitive advantage, we believe, because there is no need for the costly purification process required to produce conventional biologics.
See "Our Therapeutic Platforms - ActoBiotics" for more information.
Competition
While we believe that our novel approach to developing the next generation of gene and cell therapies to target the most urgent and intractable challenges in immuno-oncology, autoimmune disorders, and infectious diseases provides us with competitive advantages, our industry is highly competitive and subject to rapid and significant technological change. Many of our competitors have significantly greater financial, technical, and human resource capabilities than we do, and certain of our competitors may also benefit from local government subsidies and other incentives that are not available to us. In addition, mergers and acquisitions in the pharmaceutical and biotechnology industries may result in even more resources being concentrated among a smaller number of our competitors. As a result of the resources available to our competitors, our competitors may be able to develop competing and/or superior technologies and processes, and compete more aggressively and sustain that competition over a longer period of time than we can.
Product candidates that we successfully develop and commercialize will compete with a range of therapies that are currently approved and any new therapies that may become available in the future. Our ability to compete successfully will depend on our ability to develop proprietary technologies that can be used to produce products that reach the market in a timely manner and are technologically superior to and/or are less expensive than other products on the market. The availability of reimbursement from government and other third-party payors will also significantly affect the pricing and competitiveness of our products. Our competitors may also obtain FDA or other regulatory approval for their products more rapidly than we may obtain approval for ours, which could result in our competitors establishing a strong market position before we are able to enter the market. Key product features that would affect our ability to effectively compete with other therapeutics include the efficacy, safety and convenience of our products, as well as the availability of intellectual property protection.
Immuno-oncology
Our lead product candidates include PRGN-3005 for the treatment of ovarian cancer and PRGN-3006 for the treatment of AML, which are built on our UltraCAR-T platform. While we are employing a novel approach, there are a number of competitors pursuing

CAR-T cell therapies for the treatment of cancer. We believe that Bristol-Myers Squibb and MaxCyte are developing CAR-T based treatments for ovarian cancer and Celyad, Mustang Bio, MolMed, Amgen (Gilead / Kite partnership), Cellectis S.A., and Allogene Therapeutics are also using CAR-T technology to develop product candidates for the treatment of AML.
Bristol-Myers Squibb's product candidate, JCAR020, is a MUC16-IL-12 armored T-cell therapy being developed to treat ovarian cancer. Similar to our UltraCAR-T platform, this product candidate targets MUC16 on ovarian tumors. JCAR020 is engineered with "armored CAR" technology to co-express CAR and IL-12, a cytokine that can help overcome the inhibitory effects that the tumor micro-environment can have on T cell activity. MaxCyte's MCY-M11 is a mesothelin-specific human mRNA CAR-T cell therapy being developed to treat ovarian cancer. MCY-M11 is a non-viral approach that uses repeated infusions of mesothelin-specific messenger RNA (mRNA) transfected T cells transiently expressing CAR to permit prospective control of 'on-target/off-tumor' toxicity.
For the treatment of AML using CAR-T therapies, we believe that Celyad, Mustang Bio, and MolMed have product candidates in the most advanced clinical trials. Celyad's product candidate is an NKG2D-based CAR-T approach that uses the OptimAb manufacturing process, which generates a higher frequency of less differentiated CAR-T cells. Celyad's product candidate exhibited enhanced anti-tumor activity in preclinical studies and is now being studied with and without lymphodepletion. Mustang Bio's product candidate is an anti-CD123 CAR-T cell therapy. CD123 is widely expressed on bone marrow cells of patients with myelodysplastic syndromes, as well as in hematologic malignancies, including AML, and Mustang Bio's MB-102 (CD123 CAR T) is a CAR-T cell therapy that is produced by engineering patient T cells to recognize and eliminate CD123-expressing tumors. MolMed is developing an anti-CD44v6 CAR-T cell therapy that involves isolating the patient's T cells and modifying them ex vivo with a viral vector. The T cells are engineered to express the CAR and the HSV-TK suicide gene already used in Zalmoxis®. The CAR facilitates the lymphocytes ability to recognize and kill the tumor cells, while the suicide gene allows for the elimination of the T lymphocytes in the case of a toxic reaction against the patient's healthy tissue. We believe that Amgen and Cellectis S.A.'s products are in Phase 1 clinical trials. Amgen is developing an FMS-like tyrosine kinase 3, or FLT3, CAR-T cell therapyutilizing autologous T cells genetically modified ex vivo to express a transmembrane CAR to target FLT3 protein on the surface of AML cells irrespective of FLT3 mutational status. Cellectis S.A. is also developing an anti-CD123 CAR-T cell therapy, which utilizes gene editing, lentivector transduction and "Pulse Agile" electroporation technology. Finally, Allogene Therapeutics' anti-FLT3 CAR-T cell therapy, which we believe is in preclinical development for AML, is manufactured using healthy donor T-cells that are engineered to express a gene-edited CAR directed against FLT3, a receptor tyrosine kinase with high expression in AML stem cells and utilizes an off-switch activated by rituximab to enable CAR-T cell depletion via CDC and ADCC.
In addition to our direct competitors that are using CAR-T therapies specifically for the treatment of ovarian cancer and AML, the CAR-T technology space has significant other competition including from multiple companies and their collaborators, such as Novartis and University of Pennsylvania, Gilead, Adaptimmune and GSK, Autolus Therapeutics, and Bellicum Pharmaceuticals. We also face competition from non-cell based cancer treatments offered by other companies such as Amgen, AstraZeneca, Incyte, Merck, and Roche.
See "Our Therapeutic Platforms - UltraCAR-T," "Our Product Pipeline - PRGN-3005" and "Our Product Pipeline - PRGN-3006" for a discussion of the features that we believe differentiate UlltraCAR-T treatments in general and PRGN-3005 and PRGN-3006 specifically from our competitors.
Autoimmune Disorders
We are also using our suite of proprietary and complementary synthetic biology technologies for the preclinical and clinical development of product candidates for the treatment of autoimmune disorders, including T1D. While we believe AG019 is the first disease-modifying treatment for T1D, there are a number of competitors pursuing immunotherapy product candidates to treat T1D. We believe that our primary competitors with respect to the development of immunotherapies for T1D are Caladrius BioSciences, Midatech Pharma, and MerciaPharma.
Intellectual Property
As we advance technologies, correspondingly, we apply a multilayered approach for protecting intellectual property relating to the inventions we have developed internally as well as those we have acquired from third parties, such as by assignment or by in-license. We seek patent protection in the United States and in other countries for our inventions and discoveries, and we develop and protect our key know-how and trade secrets relating to our platform technologies as well as to the product candidates we are developing with our subsidiaries JVs, and collaborators,through our collaborations.
We seek patent protection for our platform technologies with a focus on our product pipeline, including but not limited to our (i) various switch technologies; (ii) gene delivery technologies; and (iii) our portfolio around various genetic componentry such

as specialized vectors containing these genetic componentry. In addition, we seek patents covering specific collaborator's products.
We focus our intellectual property on aspects of our platforms and technologies that provide for the design and creation of cells, vectors and components for our pipeline and the pipelines of our collaborators.
Our success depends, in part, upon our ability to createobtain patents and maintain adequate protection for our intellectual property relating to our technologies and product pipeline candidates. We have adopted a strategy of seeking patent protection in the United States and in other jurisdictions globally as we deem appropriate under the circumstances, with respect to certain of the technologies used in or relating to our technologies and product pipeline candidates. For instance, where we believe appropriate, we have also filed counterpart patents and patent applications in other jurisdictions, including Australia, Argentina, Brazil, Canada, China, Europe, Hong Kong, India, Indonesia, Israel, Japan, Korea, Mexico, New Zealand, Philippines, Russia, Singapore, South Africa and Taiwan. In the future, we may file in these or additional jurisdictions as deemed appropriate for the protection of our technologies.
As of December 31, 2019, we owned at least 55 issued United States patents and 55 pending United States patent applications relating to certain aspects of our platforms and technologies, and we have pursued counterpart patents and patent applications in other jurisdictions around the world, as we have deemed appropriate. We continue to actively develop our portfolio through the filing of new patent applications, provisional and continuations or divisionals relating to our technologies, methods and products as we and our collaborators deem appropriate. We divested of 20 issued United States patents and 23 pending United States patent applications as part of the Transactions.
We have strategic positioning with respect to our key technologies directed to: our various switch technologies, with a last to expire patent currently in 2038; our portfolio around various gene delivery technologies and their use, with a last to expire patent in 2040; our portfolio around various genetic componentry such as specialized vectors containing these genetic componentry and their use, with a last to expire patent in 2039. Although we have no certainty that these patents will not be subject to challenge in the future, as of this filing, there are currently no material contested proceedings and/or third party claims with respect to any of these patent portfolios.
Additionally, we complement our intellectual property portfolio with exclusive and non-exclusive patent licenses and options for licenses to third-party technologies.
We further solidify our intellectual property protection through a combination of trade secrets, know-how, confidentiality, nondisclosure and other contractual provisions, and security measures to protect our confidential and proprietary information related to each platform and collaborator program. We regularly assess and review the risks and benefits of protecting our developments through each aspect of intellectual property available to us.
Because we rely on trade secrets, know-how, and continuing technological advances to protect various aspects of our technology, we require our employees, consultants and scientific collaborators to execute confidentiality and invention assignment agreements with us to maintain the confidentiality of our trade secrets and proprietary information. Our confidentiality agreements generally provide that the employee, consultant or scientific collaborator will not disclose our confidential information to third parties. These agreements also provide that inventions conceived by the employee, consultant or scientific collaborator in the course of working for us will be our exclusive property. Additionally, our employees agree to take certain steps to facilitate our assertion of ownership over such intellectual property. These measures may not adequately protect our trade secrets or other proprietary information. If they do not adequately protect our rights, third parties could use our technologies, and we could lose any competitive advantage we may have. In addition, others may independently develop similar proprietary information or techniques or otherwise gain access to our trade secrets, which could impair any competitive advantage we may have.
Regulatory Environment
With our diverse portfolio of proprietary technologies and novel therapeutic candidates, we are subject to significant and diverse regulations governing research, operations and product approval. Regulatory compliance is critical to our ability to operate, our management of potential liabilities and ultimately, our freedom to sell our products. Moreover, and as discussed below and in "Risk factors - Risks associated with our business strategy," the products we are pursuing or are produced by us are subject to extensive regulation. We also rely on our collaborators' compliance with laws and regulations applicable to the products they produce. We do not independently monitor whether our collaborators comply with applicable laws and regulations. Please see the risk factor entitled "Markets in which we and our collaborators are developing products using our technologies are subject to extensive regulation, and we rely on our collaborators to comply with all applicable laws and

regulations."
Environmental regulations affecting us and our collaborators
We and our collaborators are subject to various federal, state and local environmental laws, rules and regulations, including those relating to the discharge of materials into the air, water and ground, the generation, storage, handling, use, transportation and disposal of hazardous materials and the health and safety of employees with respect to laboratory activities required for the development of products and technologies. These laws and regulations require us and our collaborators to obtain environmental permits and comply with numerous environmental restrictions. These laws and regulations also may require expensive pollution control equipment or operational changes to limit actual or potential impacts to the environment.
Our laboratory activities and those of our collaborators inherently involve the use of potentially hazardous materials, which are subject to health, safety and environmental regulations. We design our infrastructure, procedures and equipment to meet our obligations under these regulations. We perform recurring internal and third-party audits and provide employees ongoing training and support, as required. All of our employees must comply with safety instructions and procedures, which are codified in our employment policies. Federal and state laws and regulations impose requirements on the production, importation, use and disposal of chemicals and genetically-modified microorganisms, or GMMs, which impact us and our collaborators. Our and our collaborators' processes may contain GE organisms which, when used in industrial processes, are considered new chemicals under the Toxic Substances Control Act, or TSCA, program of the United States Environmental Protection Agency, or EPA. These laws and regulations would require us and our collaborators to obtain and comply with the EPA's Microbial Commercial Activity Notice process to operate. In the European Union, we and our collaborators may be subject to a chemical regulatory program known as REACH (Registration, Evaluation, Authorization and Restriction of Chemical Substances). Under REACH, companies are required to register their products with the European Commission, and the registration process could result in significant costs or delay the manufacture or sale of products in the European Union.
Regulations affecting us and our collaborators
Human therapeutics regulation
Government authorities in the United States, at the federal, state and local level, and in other countries extensively regulate, among other things, the research, development, testing, manufacture, including any manufacturing changes, packaging, storage, recordkeeping, labeling, advertising, promotion, distribution, marketing, import and export of pharmaceutical products such as those being developed by our collaborators. The processes for obtaining regulatory approvals in the United States and in foreign countries, along with subsequent compliance with applicable statutes, regulations, and requirements imposed by regulatory agencies, require the expenditure of substantial time and financial resources.
In the United States, pharmaceuticals must receive approval from the FDA before being marketed. The FDA approves drug products other than biological products through its authority under the Federal Food, Drug, and Cosmetic Act, or FDCA, and implementing regulations. The FDA licenses biological drug products, or biologics, through its authority under the Public Health Service Act, or PHSA, and implementing regulations. The development processes for obtaining FDA approval for a non-biological drug product under the FDCA and for biologic licensure under the PHSA are generally similar, but have product-related differences reflected in regulations and in FDA guidance documents.
United States pharmaceutical development process
The process required by the FDA before a pharmaceutical product candidate may be marketed generally involves the following:
completion of preclinical laboratory tests and in vivo studies in accordance with the FDA's current Good Laboratory Practice regulations and standards, and other applicable requirements;
submission to the FDA of an IND for human clinical testing, which must become effective before human clinical trials commence;
performance of adequate and well-controlled human clinical trials according to the FDA's Good Clinical Practices, or GCP, regulations, and any additional requirements for the protection of human research subjects and their health information, to establish the safety and efficacy of the proposed product candidate for each intended use;

preparation and submission to the FDA of an application for marketing approval that includes substantial evidence of safety, purity and potency for a biologic, or of safety and efficacy for a non-biologic drug, including from results of nonclinical testing and clinical trials;
satisfactory completion of an FDA inspection of the manufacturing facility or facilities where the product candidate is produced to assess compliance with cGMP and to assure that the facilities, methods and controls are adequate to preserve the product candidate's identity, safety, strength, quality, potency and purity;
potential FDA inspection of the nonclinical and clinical trial sites that generated the data in support of the application; and
FDA review and approval of the application.
Human clinical trials under an IND
Clinical trials involve administering the product candidate to healthy volunteers or patients under the supervision of qualified investigators. Clinical trials must be conducted and monitored in accordance with the FDA's regulations. Further, each clinical trial must be reviewed and approved by an Institutional Review Board, or IRB, at or servicing each institution at which the clinical trial will be conducted. An IRB is charged with protecting the welfare and rights of trial participants and considers, among other things, whether the risks to individuals participating in the clinical trials are minimized and are reasonable in relation to anticipated benefits. Clinical trials involving recombinant DNA at institutions that receive any funding from the National Institutes of Health also must be reviewed by an institutional biosafety committee, an institutional committee that reviews and oversees basic and clinical research that utilizes recombinant DNA at that institution.
Human clinical trials typically are conducted in three sequential phases that may overlap or be combined:
Phase 1. The product candidate is introduced into healthy human subjects and tested for safety, dosage tolerance, absorption, metabolism, distribution, excretion and, if possible, to gain early understanding of its effectiveness. For some product candidates for severe or life-threatening diseases, especially when the product candidate may be too inherently toxic to ethically administer to healthy volunteers, the initial human testing is often conducted in patients with the targeted disease.
Phase 2. The product candidate is administered and evaluated in a limited patient population to identify possible adverse effects and safety risks, to evaluate preliminary efficacy evidence for specific targeted diseases and to determine dosage tolerance, optimal dosage and dosing schedule.
Phase 3. The product candidate is administered to an expanded patient population, often at geographically dispersed clinical trial sites, in adequate and well-controlled clinical trials to generate sufficient data to evaluate the safety and efficacy of the non-biologic drug, or the safety, purity, and potency of the biologic. These clinical trials are intended to establish the overall risk/benefit ratio of the product candidate and provide an adequate basis for product labeling.
Post-approval clinical trials, sometimes referred to as Phase 4 clinical trials, may be conducted, or may be required to be conducted, after initial approval to further assess the risk/benefit profile of the product and to gain additional experience from treatment of patients in the intended indication, including for long-term safety follow-up.
Additional regulation for gene therapy clinical trials
Additional standards apply to clinical trials involving gene therapy. The FDA has issued guidance documents regarding gene therapies, which relate to, among other things: preclinical assessments; chemistry, manufacturing and controls, or CMC, information that should be included in an IND application; the proper design of tests to measure product potency in support of an application; and long-term follow-up measures to observe delayed adverse effects in subjects exposed to investigational gene therapies when the risk of such effects is not low or when the gene therapy utilizes genome-editing technology, shows signs of persistence, has the potential for latency and reactivation, or genetically alters the human genome.
Compliance with cGMP requirements
Drug and biologics manufacturers must comply with applicable cGMP regulations. Manufacturers and others involved in the manufacture and distribution of such products also must register their establishments with the FDA and certain state agencies. Both domestic and foreign manufacturing establishments must register and provide additional information to the FDA upon

their initial participation in the manufacturing of drugs. Establishments may be subject to periodic, unannounced inspections by the FDA and other government authorities to ensure compliance with cGMP requirements and other laws. Discovery of problems may result in a government entity placing restrictions on a product, manufacturer or holder of an approved product, and may extend to requiring withdrawal of the product from the market.
United States review and approval processes
The results of the preclinical tests and clinical trials, together with detailed information relating to the product's CMC and proposed labeling, among other things, are submitted to the FDA as part of an application requesting approval to market the product for one or more uses, or indications. For gene therapies, selecting patients with applicable genetic defects is often a necessary condition to effective less costlytreatment and may require diagnostic devices that the FDA has cleared or approved prior to or contemporaneously with approval of the gene therapy.
Under the Pediatric Research Equity Act, or PREA, marketing applications generally must contain data to assess the safety and effectiveness of the biologic product candidate for the claimed indications in all relevant pediatric subpopulations and to support dosing and administration for each pediatric subpopulation for which the product candidate is safe and effective. The FDA may grant deferrals for submission of data or full or partial waivers. Unless otherwise required by regulation, PREA does not apply to any product candidate for an indication for which orphan designation has been granted.
On the basis of the marketing application and accompanying information, including the results of the inspection of the manufacturing facilities, the FDA may issue an approval letter or a complete response letter. An approval letter authorizes commercial marketing of the drug with specific prescribing information for specific indications. A complete response letter generally outlines the deficiencies in the submission and may require substantial additional testing or information for the FDA to reconsider the application. If those deficiencies have been addressed to the FDA's satisfaction in a resubmission of the application, the FDA may issue an approval letter.
If a product candidate receives regulatory approval, the approval may be significantly limited to specific diseases and dosages or the indications for use may otherwise be limited. Further, the FDA may require that certain contraindications, warnings or precautions be included in the product labeling. The FDA may impose restrictions and conditions on product distribution, prescribing or dispensing in the form of a Risk Evaluation and Mitigation Strategy, or REMS, or otherwise limit the scope of any approval. In addition, the FDA may require post-marketing clinical trials designed to further assess a non-biologic drug's safety and effectiveness, or a biologic's safety, purity, and potency, and testing and surveillance programs to monitor the safety of approved products that have been commercialized.
Orphan Drug Designation in the United States
Under the Orphan Drug Act, the FDA may grant orphan drug designation to drugs and biological products intended to treat a "rare disease or condition," which generally is a disease or condition that affects fewer than 200,000 individuals in the United States. Orphan drug designation must be requested before submitting a marketing application or supplement seeking approval for the orphan indication. After the FDA grants orphan drug designation, the common identity of the therapeutic agent and its potential orphan use are publicly disclosed by the FDA.
Orphan drug designation does not—by itself—convey any advantage in, or shorten the duration of, the regulatory review and approval process. If a product that has an orphan drug designation subsequently receives the first FDA approval for that drug or biologic for the indication for which it has been designated, the product is entitled to an orphan exclusivity period in which the FDA may not approve any other applications to market the same drug or biologic for the same indication for seven years.
Exceptions to the seven-year exclusivity period may apply in limited circumstances, such as where the sponsor of a different version of the product is able to demonstrate that its product is clinically superior to the approved orphan drug product. This exclusivity does not prevent a competitor from obtaining approval to market a different product that treats the same disease or condition, or the same product to treat a different disease or condition. The FDA can revoke a product's orphan drug exclusivity under certain circumstances, including when the holder of the approved orphan drug application is unable to assure the availability of sufficient quantities of the drug to meet patient needs. Orphan exclusivity operates independently from other regulatory exclusivities and other protections against generic or biosimilar competition.
A sponsor of a product application that has received an orphan drug designation is also granted tax incentives for clinical research undertaken to support the application. In addition, the FDA will typically coordinate with the sponsor on research study design for an orphan drug and may exercise its discretion to grant marketing approval on the basis of more sustainable solutionslimited

product safety and efficacy data than would ordinarily be required, based on the limited size of the applicable patient population.
Fast Track Designation
The FDA has a number of expedited review programs for drugs that are intended for the treatment of a serious or life-threatening condition. As one example, under the agency's Fast Track program, the sponsor of a new drug candidate may request the FDA to designate the product for a specific indication as a Fast Track product concurrent with or after the filing of the IND for the product candidate. The FDA must determine if the product candidate qualifies for Fast Track designation within 60 days after receipt of the sponsor's request.
In addition to other benefits, such as the ability to have more frequent interactions with the FDA, the agency may initiate review of sections of a Fast Track product's marketing application before the application is complete. This rolling review is available if the applicant provides and the FDA approves a schedule for the submission of the remaining information and the applicant pays applicable user fees. However, the FDA's review period for a Fast Track application does not begin until the last section of the marketing application is submitted. In addition, the Fast Track designation may be withdrawn by the FDA if the agency believes that the designation is no longer supported by data emerging in the clinical trial process.
Regenerative Medicine Advanced Therapy Designation
The FDA may grant regenerative medicine advanced therapy, or RMAT, designation to regenerative medicine therapies, which may include cell therapies, human gene therapies, therapeutic tissue engineering products, and human cell and tissue products, if certain criteria are met. In particular, a drug may be eligible for RMAT designation if the drug is a regenerative medicine therapy as defined in Section 506(g)(8) of the Federal Food, Drug, and Cosmetic Act; the drug is intended to treat, modify, reverse, or cure a serious or life-threatening disease or condition; and preliminary clinical evidence indicates that the drug has the potential to address unmet medical needs for such disease and condition. The FDA must determine if the product candidate qualifies for RMAT designation within 60 days after receipt of the sponsor's request.
A grant of RMAT designation includes all of the benefits of Fast Track designation, intensive guidance on efficient drug development beginning as early as Phase 1, and organizational commitment involving senior managers. The RMAT designation may be withdrawn by the FDA if the agency believes that the designation is no longer supported by data emerging in the clinical trial process.
Post-approval requirements
Rigorous and extensive FDA regulation of drugs and biologics continues after approval, including requirements relating to recordkeeping, periodic reporting, product sampling and distribution, adverse experiences with the product, cGMP, and advertising and promotion. Changes to the product, manufacturing process, or facility often require prior FDA approval before being implemented and other types of changes to the approved product, such as adding new indications and additional labeling claims, are also subject to further FDA review and approval. Failure to comply with the applicable requirements may result in administrative, judicial, civil or criminal actions and adverse publicity. These actions may include FDA's refusal to approve or delay in approving pending applications or supplemental applications, withdrawal of approval, clinical hold, suspension or termination of clinical trial, warning or untitled letters, product recalls, product seizures, total or partial suspension of production or distribution, injunctions, fines or other monetary penalties, refusals of government contracts, mandated corrective advertising or communications with healthcare providers, debarment, restitution, disgorgement of profits or other civil or criminal penalties.
Regulatory Exclusivity and Biosimilar Competition in the United States
In 2010, the federal Biologics Price Competition and Innovation Act, or BPCIA, was enacted, creating a statutory pathway for licensure, or approval, of biological products that are biosimilar to, and possibly interchangeable with, reference biological products licensed under the Public Health Service Act.
Under the BPCIA, innovator manufacturers of original biological products are granted 12 years of exclusive use after first licensure before biosimilar versions of such products can be provided through current industry practices. Our technologies combinelicensed for marketing in the principlesUnited States. This means that the FDA may not approve an application for a biosimilar product that references data in an innovator's Biologics License Application, or BLA, until 12 years after the date of precision engineering, statistical modeling, automationapproval of the reference biological product, with a potential six-month extension of exclusivity if certain pediatric studies are conducted and production atthe results are reported to the FDA. A biosimilar application may be submitted four years after the date of licensure of the reference biological product, but the FDA cannot

approve the application until the full exclusivity period has expired. This 12-year exclusivity period operates independently from other protections that may apply to biosimilar competitors, including patents that are held for those products. Additionally, the BPCIA establishes procedures by which the biosimilar applicant must provide information about its application and product to the reference product sponsor, and by which information about potentially relevant patents is shared and litigation over patents may proceed in advance of approval. The BPCIA also provides a period of exclusivity for the first biosimilar to be determined by the FDA to be interchangeable with the reference product.
Under the Best Pharmaceuticals for Children Act, which was subsequently made applicable to biological products by the BPCIA, the FDA may also issue a Written Request asking a sponsor to conduct pediatric studies related to a particular active moiety; if the sponsor agrees and meets certain requirements, the sponsor may be eligible to receive an industrial scale. We efficiently engineer preciseadditional six months of marketing exclusivity for its drug product containing such active moiety.
Other regulatory exclusivity may be granted to drugs, including, but not limited to, three-year and complex gene programs across many cell types. We applyfive-year exclusivity granted to non-biologic drugs under the engineering principleDrug Price Competition and Patent Term Restoration Act of 1984, also referred to as the Hatch-Waxman Amendments.
Depending upon the timing, duration, and specifics of FDA approval of product candidates, some of a design-build-test-learn continuum, throughsponsor's United States patents may be eligible for limited patent term extension under the Hatch-Waxman Amendments. The Hatch-Waxman Amendments permit a patent restoration term of up to five years as compensation for patent term lost during product development and the FDA regulatory review process. However, patent term restoration cannot extend the remaining term of a patent beyond a total of 14 years from the product's approval date. The United States Patent and Trademark Office, or USPTO, in consultation with the FDA, reviews and approves the application for any patent term extension or restoration. Only one patent applicable to an approved drug product is eligible for the extension and the application for the extension must be submitted prior to the expiration of the patent.
Foreign regulation of human therapeutics
In addition to regulations in the United States, our subsidiaries, such as PGEN and ActoBio, and our collaborators that are focused on the development of human therapeutic products will be subject to a variety of foreign regulations governing clinical trials and commercial sales and distribution of the products enabled by our technologies. Whether or not the developer obtains FDA approval for a product, they must obtain approval by the comparable regulatory authorities of foreign countries or economic areas, such as the European Union, before they may commence clinical trials or market products in those countries or areas. The approval process and requirements governing the conduct of clinical trials, product licensing, pricing and reimbursement vary greatly from place to place, and the time may be longer or shorter than that required for FDA approval.
Regulation of microbes and microbial products
The use of GMMs, such as our yeast and methanotroph strains, is subject to laws and regulations in many countries. In the United States, the EPA regulates the commercial use of many GMMs as well as potential products produced from GMMs. Various states within the United States could choose to regulate products made with GMMs as well. While the strain of genetically-modified yeast that we use, S. cerevisiae, is eligible for exemption from EPA review because it is generally recognized as safe, we must satisfy certain criteria to achieve this exemption, including, but not limited to, use of compliant containment structures and safety procedures. We expect to encounter GMM regulations in most if not all of the countries in that we may seek to make our products; however, the scope and nature of these regulations will likely vary from country to country. If we cannot meet the applicable requirements in countries in which we accumulate knowledge aboutintend to produce our products using GMMs, then our business will be adversely affected.
Non-Healthcare Assets and Transition to Our Core Healthcare Business Model
Historically, we focused on programming biological systems for application across a variety of diverse end markets, including health, food, energy, and environment, but we have also consistently evolved the characteristicsway in which we apply our synthetic biology technologies and performancethe opportunities on which we have focused. In January 2020, we announced that we are increasing our focus on certain of our healthcare opportunities, which reflect our most-advanced platforms, and in connection therewith we divested a number of our non-healthcare assets and changed our name to Precigen, Inc. However, we continue to own our methane bioconversion business and our established bovine genetics company.
Prior to refocusing our business on healthcare, we sought to apply our synthetic biology technologies to a broad universe of markets. In order to operate in such a variety of markets, we built our business around collaborations, such as ECCs and JVs. Over time, we evolved away from entering into new collaborations and considered ways to reorganize our business to best leverage our

technology assets and focus on the opportunities that we believe are of the most immediate promise. Effective January 1, 2018, we transferred substantially all of our gene programs and cell lines. This processtherapy assets for human health to a newly-formed wholly owned subsidiary, PGEN, and we consolidated therapeutic applications of continuous learning allows usour proprietary ActoBiotics platform under ActoBio, another wholly owned subsidiary. In May 2019, we announced the alignment of our operations into two units focused on healthcare and bioengineering in order to better deploy resources, realize inherent synergies and position the company for growth with a core focus on healthcare.
In January 2020, we furthered our plans to enhance our abilityfocus on the healthcare industry when we sold a number of our bioengineering assets, or the TS Biotechnology Sale, to designTS Biotechnology. Randal J. Kirk, who is the former CEO of Precigen and build improvedis currently the Executive Chairman and more complex gene programsa member of our board of directors, serves as the Senior Managing Director and cellular systems.Chief Executive Officer of Third Security and owns 100 percent of the equity interests of Third Security. The assets divested in the TS Biotechnology Sale included our domain name dna.com and all of our equity interests in (1) Blue Marble AgBio LLC, or Blue Marble AgBio, a Delaware limited liability company, that we formed to hold our agricultural biotechnology assets, (2) ILH Holdings, Inc., or ILH Holdings, a Delaware corporation, which housed our yeast fermentation technology platform for the biologic production of active pharmaceutical ingredients and other fine chemicals, (3) Intrexon Produce Holdings, Inc., or IPHI, a Delaware corporation, which owns Okanagan Specialty Fruits, Inc., or Okanagan Specialty Fruits, the agricultural company developing non-browning apple without the use of any artificial additives, (4) Intrexon UK Holdings Inc., or Intrexon UK Holdings, a Delaware corporation, which owns Oxitec, Ltd., or Oxitec, the developer of an insect-based biological control system, (5) Oragenics, which is developing antibiotics against infectious disease and, in collaboration with ActoBio, treatments for oral mucositis, and (6) SH Parent, Inc., or SH Parent, a Delaware corporation, which held our ownership interests in Surterra Holdings, Inc., or Surterra, a cannabinoid-based wellness company. In addition, in January 2020, in a separate transaction, we sold our interest in EnviroFlight, LLC, or EnviroFlight, to Darling. See "Notes to the Consolidated Financial Statements - Note 3" appearing elsewhere in this Annual Report for a discussion of the Transactions and the discontinued operations.
Remaining Non-Healthcare Businesses
While our primary focus is in healthcare, after the field of synthetic biologyTransactions we continue to have two non-healthcare businesses: our methane bioconversion business, MBP Titan, LLC, or MBP Titan, and our established bovine genetics company, Trans Ova Genetics, L.C., or Trans Ova.
MBP Titan
MBP Titan is still emerging, the addressable markets that may benefit from this approach are largeour standalone subsidiary comprising our Methane Bioconversion Platform, or MBP, and well-established. In health, synthetic biology may provide new approachesour associated technologies, personnel, and facilities. Our MBP is designed to treating diseases, as well as improvements to the manufacture of existing products. It is estimated that the global biopharmaceuticals market is over $175 billion. While genetically modified salmon or tilapia may be considered newturn natural gas into more valuable and usable energy and chemical products the global market for aquaculture was estimated at more than $170 billion in 2017. Genetically modified agricultural plants are already grown on approximately 180 million hectares around the world and are worth an estimated $15 billion. In energy, we are working to createthrough novel, highly engineered bacteria that utilize specific energy feedstocks, typicallyfeedstocks. This technology can use pipeline grade natural gas, to synthesize commercial end products, such as isobutanol for gasoline blending, 2,3 Butanediol for conversion to synthetic rubber and 1,4 Butanediol for polyester. Today these target marketsTraditional methods of feedstock conversion for fuel production and other materials are costly, wasteful and often come with significant environmental impact. The MBP production method has the potential to transform the generation of drop-in fuels, synthetic rubber, plastic material, and animal feed through less resource intensive and more sustainable approaches than conventional methods. In aggregate, the value of such fuel and chemical products and animal feed are significant, representing the potential of billions of dollars in estimated to represent over $100 billion in aggregate commercialmarket opportunity.
We are currently assessing the appropriate next steps with respect to the future of our MBP platform, which could include a financing directly into MBP Titan, or other strategic alternatives. As part of this assessment, we are also considering the future of our joint ventures with Intrexon Energy Partners and Intrexon Energy Partners II.
See "Notes to the Consolidated Financial Statements - Note 5" appearing elsewhere in this Annual Report for a discussion of Intrexon Energy Partners and Intrexon Energy Partners II and other significant collaborations between us and our JVs.
Trans Ova
Trans Ova is internationally recognized as a provider of industry-leading bovine reproductive technologies. Trans Ova offers bovine embryo transfer technologies, in addition to other advanced reproductive technologies, including in-vitro fertilization, or IVF, sexed-semen, genetic preservation and cloning. Through extensive research programs and applied science, Trans Ova has developed and implemented new technologies that, we believe, our technologieshave helped to move the science of bovine genetic improvement forward. We and Trans Ova are broadly applicable across many diverse end markets, including some end markets that have failedevaluating the optimal means to recognize the applicability of synthetic biology or failed to efficiently utilize biologically-based processes to produce products. To enable usthese technology assets and Trans Ova's broad customer base and deep industry knowledge to maximize the numbervalue of these markets we could address, we devised a strategy that allowed us to focus on our core expertisethe business.
As of December 31, 2019, Trans Ova had 229 production employees. Trans Ova's primary domestic production facilities, including approximately 360 acres of land, are located in synthetic biology while developing many different commercial product candidates via collaborations in a broad range of industries or end markets. Historically, we built our businessSioux Center, Iowa. The land and facilities are primarily around the formation of ECCs. An ECC is an agreement with a collaborator to develop products based on technologies in a specifically defined field. We have sought collaborators with expertise within a specific industry sector and the commitment to provide resources for the commercialization of products within that industry sector. Through our ECCs, we provide expertise in the engineering of gene programs and cellular systems, and our collaborators are responsible for providing market and product development expertise, as well as sales and marketing capabilities. In addition, we have sometimes executed a research collaboration to develop an early-stage program pursuant to which we received reimbursementused for our development costs but the exclusive commercial rights, and related access fees, were deferred until completion of an initial research program.embryo

This ECC strategy has allowed us to leverage our capabilitiestransfer and capital across numerous product development programs and a broader landscape of end markets than we would have been capable of addressing on our own. The strategy has also allowed us to participate in the potential upside from products that are enabled by our technologies across an extensive range of industries, without the need for us to invest considerable resources in bringing individual products to market. We presently are party to a number of these collaborations, which are in varying stages from research and development of product candidates to monitoring the progress of our collaborator in their further development and, we expect, commercialization of product candidates enabled through our collaborations.
Over time, our strategy has evolved away from ECC-type collaborations to relationships and structures that provide us with more control and ownership over the development process and commercialization path. In these new relationships and structures, we bear more of the responsibility to fund the projects and execute on product candidate development.
First, in certain strategic circumstances, we may enter into a JV with a third party collaborator whereby we may contribute access to our technology, cash or both into the JV which we will jointly control with our collaborator. Pursuant to a JV agreement, we may be required to contribute additional capital to the JV, and we may be able to receive a higher financial return than we would normally receive from an ECC to the extent that we and our collaborator are successful in developing one or more products. Second, we are increasing the resources we are expending internally on early-stage proof of concept programs where we can leverage our competitive edge in gene program creation and host cell and genome expertise. We are also seeking to partner more mature programs and capabilities or later-stage assets. In this way, we endeavor to leverage our capital resources and ultimately hope to realize significant value from our mature assets.
As we consider the broad potential applications of our synthetic biology technologies, and consistent with the evolution of our business strategy, we have acquired a number of ventures that are already enabling products that benefit from the application of synthetic biology. Our strategy contemplates the continued acquisition of product-focused companies that we believe may leverage our technologies and expertise in order to expand their respective product applications. We believe that the acquisition of these types of companies allows us to develop and commercialize innovative products and create significant value.
Consistent with the ongoing evolution of our strategy, from principally utilizing ECCs to seeking a more diverse approach to leverage our technology assets, we routinely consider ways to organize our business and the grouping of our assets to facilitate strategic opportunities.
What is synthetic biology?
History
Synthetic biology entails the application of engineering principles to biological systems for the purpose of designing and constructing new biological systems or redesigning/modifying existing biological systems. Biological systems are governed by DNA, the building blocks of gene programs, which control cellular processes by coding for the production of proteins and other molecules that have a functional purpose and by regulating the activities of these molecules. This regulation occurs via complex biochemical and cellular reactions working through intricate cell signaling pathways, and control over these molecules modifies the output of biological systems.
In the early 1970s, scientists utilized basic tools and procedures for transferring DNA from one organism to another. Foundational tools included: gene programs contained in vectors; enzymes that could cut DNA at specific sites; and enzymes that could "glue" two complementary segments of DNA together. Developments between 1980 and the end of the 20th century advanced the field of genetic engineering, including automated DNA sequencing, DNA amplification via polymerase chain reaction and the creation of genetically modified organisms. However, the simplistic "cut-and-paste" nature of the available tools and the absence of genomic sequence information significantly restricted the scope of early synthetic biology efforts.
More recently, synthetic biology has been enabled by the application of information technology and advanced statistical analysis, also known as bioinformatics, to genetic engineering, as well as by improvements in DNA synthesis. Synthetic biology aims to engineer gene-based programs or codes to modify cellular function to achieve a desired biological outcome. For example, applications may include the replacement of a defective protein with a functional protein to treat a broad range of human and animal disease states or the production of multiple proteins through the regulation of several genes in a cell to produce petrochemicals.

Our approach
The essence of our approach is to apply synthetic biology by using an iterative process that is rapid, automated and highly reproducible, in which we:
Design genes of interest and gene programs utilizing knowledge of cellular pathways and protein function;
Build biological molecules, gene programs and their variants to optimize performance of the biological system;
Test gene programs by inserting them into cellular systems and comparing the result(s) to the intended effects; and
Learn by utilizing information gained in our iterative processes to create better gene programs and cellular systems using a more informed and efficient process to achieve improved outcomes.
As a result of our approach, we have developed extensive knowledge about many classes of DNA components and the rules governing their expression and activity. We have also assembled an inventory of these DNA components that we can use to rationally construct unique vectors rapidly and with predictable outcomes. The knowledge embedded in our DNA database allows us to create single gene and highly complex multigenic gene programs (an individual gene program containing multiple genes).
To support our approach, we have developed, acquired, and integrated a unique suite of technologies, and we continue to expand upon their capabilities. These technologies include: our UltraVector gene design and fabrication platform and its associated library of modular DNA components; Cell Systems Informatics; RheoSwitch inducible gene switch; AttSite Recombinases; Protein Engineering; Laser-Enabled Analysis and Processing, or LEAP; ActoBiotics platform; and AdenoVerse technology platform. These technologies are complementary in nature and share the following key characteristics:
Platform neutral — outcome oriented. We can work across different cell types with the objective of achieving the intended biological outcome allowing for product development across a broad spectrum of end markets.
Knowledge driven. We use statistical modeling tools and computational analysis to continually acquire more knowledge about biological systems and their design to continually improve our ability to develop new and improved products and processes for our collaborators.
Rationally designed. Our knowledge of biological systems and components allows us to design, build and select gene programs and predict the probable outcome of these programs.
Capable of complexity. Our technologies enable the design and precise control of complex biological molecules and multigenic gene programs.
Industrial scale. We use engineering principles and automation to enable products based on synthetic biology that are commercially viable.
Our competitive strengths
We believe that our technologies, our ability to work across multiple host systems and our approach to synthetic biology — design-build-test-learn — give us a competitive advantage over traditional industrialvitro fertilization processes, as well as current approaches to synthetic biology.
We believe that we have the following competitive strengths:
We have a suite of proprietary and complementary technologies
We have built a suite of proprietary and complementary technologies that provides us with a comprehensive ability to design, create, modify and regulate gene programs and cellular systems across multiple host systems (human, animal, insect, plant, fungi, and bacteria). By virtue of the complementary nature of our technologies, we are able to provide our subsidiaries, JVs, and collaborators with a diverse array of capabilities, representing a "one stop shop" to potentially develop and commercialize new and differentiated products enabled by synthetic biology.

Our design-build-test-learn continuum allows us to design and build improved and more complex gene programs
We have developed a core expertise and technologies to design, build and test complex gene programs, as well as technologies to isolate cells that best express the desired biological output. We have also developed an extensive bioinformatic software platform that combines information technology with advanced statistical analysis for DNA design and genetic engineering, enabling us to continually learn and create optimal conditions for our gene programs. Our approach allows us to build improved and more complex gene programs.
We believe we are a leaderhousing livestock used in synthetic biology
We believe we are the first company focused exclusively on applying synthetic biology across a broad spectrum of end markets and have been working in the field since 1998. Over the last 20 years, we have accumulated extensive knowledge and experience in the design, modification and regulation of gene programs. We believe all of these factors, coupled with our suite of proprietary and complementary technologies, provide us with a first-mover advantage in synthetic biology.
We serve large and diverse end markets with high built-in demand
A vast number of products consumed globally are or can be produced using biologically-basedsuch processes. Natural resources are becoming more scarce as demand exceeds supply, creating unmet needs for improvements in development and manufacturing. As a result, the need for complex biologically engineered molecules such as those enabled by our synthetic biology technologies is large and spans multiple industries, including health, food, energy, environment, and consumer. Each of these markets faces unique challenges, however all have unmet needs for improvements in product development and manufacturing that can result in savings of both cost and time as compared to traditional means of industrial design and production. Because synthetic biology has the potential to deliver against these unmet needs, we believe that significant demand already exists for improved products enabled by synthetic biology. Additionally, there are markets utilizing traditional industrial processes that have failed to recognize the significant improvement in performance that could be achieved using synthetic biology.
Our evolving business strategy allows us to leverage the broad potential of synthetic biology
We believe our ECC business model was a capital efficient and rapid way for us to initiate our participation in a diversified range of product opportunities and industrial end markets, including health, food, energy, environment, and consumer. While our ongoing ECCs continue to allow us to participate in the potential upside from products that are enabled by our technologies across an extensive range of industries, we believe that we are now capable of recognizing additional benefit from the product candidates enabled by our technologies through the formation of a variety of business structures, including operating subsidiaries and JVs. The flexibility of this approach, we believe, will enable us to maximize the value we receive for each particular opportunity within various industries in which we operate.
We have experienced management and employees
Our management team, including our Chief Executive Officer, Randal J. Kirk, consists of executives with a track record of success in building and managing research and development-driven companies. Our Chief Science Officer, Thomas D. Reed, was responsible for the initial conception and creation of our UltraVector technology platform. As of December 31, 2017, we had 481 research2019, Trans Ova also leased or owned regional production facilities and development employees.land in California, Maryland, Missouri, New York, Oklahoma, South Dakota, Texas, and Washington for these purposes.
Our suite of proprietary and complementary technologies
We apply the potential of synthetic biology through our suite of proprietary and complementary technologies that combine the principles of precision engineering, statistical modeling, automation and production at an industrial scale. This enables us to engineer precise and complex gene programs across many cell types rapidly and inexpensively. These technologies include: our UltraVector gene design and fabrication platform and its associated library of modular DNA components; Cell Systems Informatics; RheoSwitch inducible gene switch; AttSite Recombinases; Protein Engineering; LEAP processing; ActoBiotics platform; and AdenoVerse technology platform.
In order to create a highly functional biological system, we recognize the complexity of cellular processes and the necessity to construct an optimized gene program in conditions reflective of the natural environment to allow for the creation of the optimal biological product. This requires a rigorous understanding of cell signaling pathways as well as the interactions that influence the expression of protein. This knowledge is captured in our advanced Cell Systems Informatics, which uses statistical modeling and other analytic frameworks to determine the most efficient pathways for an intended biochemical result, and also plays a critical role in our research and development as this database of information allows us to explore new targets of

potential interest to our current or future subsidiaries, JVs, and collaborators. Moreover, our bioinformatics and computational modeling platform is central to our Protein Engineering, which focuses on designing enhanced and/or novel protein functionalities, including stability, localization, and catalytic activity.
In addition to creating optimized gene programs via the most efficient cell signaling pathways and in the relevant cellular environments, we have a growing library of genetic components with our UltraVector platform that enable design and assembly of gene programs which facilitate control over the quality, function, and performance of living cells. Our RheoSwitch inducible gene switch provides quantitative dose-proportionate regulation of the amount and timing of target protein expression, thereby providing another mechanism to closely control activity of a newly constructed gene program. Further, our AttSite Recombinases allow for stable, targeted gene integration and expression. Once cells have been engineered for the desired biological output, the LEAP automated platform can be used to identify and purify cells of interest, such as antibody expressing cells and stem cells. Furthermore, our ActoBiotics platform allows for targeted in situ expression of proteins and peptides from engineered microbes. Finally, our AdenoVerse technology platform is comprised of engineered adenovector serotypes which alone and in conjunction with our ability to further manipulate and improve the platform permits greater tissue specificity and target selection. We believe this platform will deliver a gene capacity exceeding 30kb which is three to six times greater than current viral delivery methods.
Our technology platform is designed to provide a "one stop shop" for start-to-finish conceptualization, engineering, regulation, optimization and production of biologically-based solutions that we believe possess many advantages over traditional processes. Our leading-edge toolkit can empower many different cell platforms allowing for selection of the most effective host to create a desired product or solution for our partners.
Our markets
Synthetic biology has applicability across many diverse end markets. Our goal is to be a leader in the application of synthetic biology for products currently utilizing biologically-based processes, and a leader in the replacement of conventional processes and products with biologically-based substitutes. Through the application of our suite of proprietary and complementary technologies, we believe we can create optimized biological processes and create substitutes for traditional industrial techniques, leading to improved products that are developed and manufactured faster and more cost-effectively.
Human and Animal Health
It is estimated that the global biopharmaceuticals market is over $175 billion and is projected to reach greater than $290 billion by 2021. Additionally, the global animal health market was valued at more than $30 billion in 2015 and is expected to grow to over $50 billion by 2025. We believe that the unreliable, costly discovery and development process for new medicines is being replaced by the engineering of biology at the genetic, molecular, and cellular level. Our ability to regulate complex gene programs and cellular systems by applying the principles of science, engineering, and computational bioinformatics with proprietary technologies is being utilized to design new therapies for humans and animals. We are applying our approach to develop targeted gene therapy applications and novel solutions within oncology, rare diseases, active pharmaceutical ingredients, ocular diseases, human infertility, infectious diseases, and animal health, as well as autoimmune, metabolic, and gastrointestinal disorders. All of our human therapeutic product candidates are in the drug discovery, preclinical, or clinical stages of development.
Food and Agriculture
The Food and Agriculture Organization of the United Nations predicts that by 2050 the world's population will grow to almost 10 billion, global demand for food and other agricultural products is expected to increase 50 percent, and global demand for livestock products will increase by 70 percent. We are focused on enabling efficient, high-quality food production that sustainably supports the necessities of our growing population. By applying our suite of technologies, we aim to facilitate development of agricultural, livestock and aquaculture resources that deliver innovative approaches and superior production yields in an environmentally responsible manner.Competition: Non-Healthcare Assets
Energy and ChemicalsMarkets
Biological production via precise enzymatic conversion represents a promising approach for the efficient productionMBP Titan differentiates itself through its use of important energy products. Despite this promise, current attempts to produce "clean" energy are expensive to implement and operate at near break-even yields despite government assistance. Additionally, many alternative energy initiatives start from food sources such as corn and sugarcane. As a result, these low efficiency processes also compete for arable land and water with the agriculture industry. Using our cellular engineering experience and suite of technologies we have developed microbial

cell lines for bioconversion of methane to higher carbon content compounds. Wedevelop environmentally-friendly products in the chemical and animal feed industries. While we believe this proprietary platform holds the potential to modernize the existing gas-to-liquids industry by generating important fuels and chemicals at a fraction of the cost of traditional conversion methods. Our bioconversion approach also is being designedmethods, any products MBP Titan develops will still compete with legacy technologies and approaches to reach an overall balance between sustainable productive yields and attractive economic returns.
To date we have proven biological productionfuel production. Many of six valuable and large market fuel and chemical products. These products are isobutanol for gasoline blending, 2,3 Butanediol and isoprene for conversion to synthetic rubber, 1,4 Butanediol for polyester, farnesene for diesel fuel and lubricants and isobutyraldehyde for acrylics. In aggregate, we estimate that these products represent greater than a $100 billion market opportunity.
Environment
As a result of industrialization and rapidly growing global populations, chemicals, heavy metals, and various other contaminants of concern are pervasiveMBP Titan's competitors in the environment. These pollutants result in poor qualityenergy market are significantly larger than MBP Titan and have significantly greater financial, technical and human resource capabilities. Further, MBP Titan is still developing our products and scaling them, while its competitors, who are utilizing more traditional methods, have the benefit of drinking water, loss of water supply, contaminated ground water and soil, high clean-up costs, and potential health problems.developed processes that are accepted by the market. In addition, increased globalization has facilitatedthere are others, including competitors with better financial, technical, and resources, and more experience, pursuing alternatives fuels as well as companies pursuing technologies based on the spreadconversion of pests that affect human and environmental health by carrying disease and damaging crops. We seek to engineer biological solutions that are designed to protect, preserve or restore the environment and promote sustainability of natural resources. These biological approaches may replace products that present an environmental hazard. Examples include toxin-free, species-specific insect control methods that do not persistmethanotrophs in the environmentenergy sector. MBP Titan's ability to compete successfully will depend on its ability to develop and microbial-based strategies for bioremediation of soil and water contamination.
Consumer Products
Despite its size and the number ofproduce products that can be achieved through biological means,scaled to reach the consumer market has experienced limited impact from synthetic biology. Wein a timely manner and are committedenvironmentally superior to developing biologically-based processes that displace petroleum-derived ingredients and polymers. Additionally, weand/or are focusedless expensive to produce than other products on reducing the wasteful practices associated with extracting compounds that occur in limiting amounts in plants and animals. Through our synthetic biology capabilities, we plan to utilize innovative biologically-based applications for the development of products, such as personal care items and decorative arts, to improve the lives of consumers every day.market.
Our business strategyAnimal Genetics Market
We believe ourTrans Ova's focus on continuous research and use of applied science allow Trans Ova to develop and implement new technologies that will help move the science of bovine genetic improvement forward rapidly and differentiate it from its competitors. However, there are broadly applicable across many diverse end markets,a number of companies that compete with Trans Ova, including some end marketstraditional breeding companies and other companies that use advanced reproductive technologies. These competitors may be larger and have better funding than Trans Ova. In addition, Trans Ova's competitors may be companies that have faileda predominant focus on developing the newest technologies in animal breeding whereas Trans Ova is one part of our overall strategy. Finally, Trans Ova's competitors that operate using more traditional breeding techniques may enjoy greater market acceptance over Trans Ova, and other companies, that utilize genetic manipulation, semen sorting and cloning techniques.
Energy and Chemical Regulation
The environmental regulations discussed above also govern the development, manufacture and marketing of energy and chemical products. Chemical products produced by us and our collaborators may be subject to recognizegovernment regulations in our target markets. In the applicabilityUnited States, the EPA administers the requirements of synthetic biologythe TSCA, which regulates the commercial registration, distribution and use of many chemicals. Before an entity can manufacture or faileddistribute significant volumes of a chemical, it needs to efficiently utilize biologically-based processesdetermine whether that chemical is listed in the TSCA inventory. If the substance is listed, then manufacture or distribution can commence immediately. If not, then in most cases a "Chemical Abstracts Service" number registration and pre-manufacture notice must be filed with the EPA, which has 90 days to produce products. To enable usreview the filing. A similar requirement exists in Europe under the REACH regulation. Additional regulations may apply to maximizespecific subsets of chemicals such as, for example, fuel products that are subject to regulation by various government agencies including, in the numberUnited States, the EPA and the California Air Resources Board.
Our Historic Operations
Until the closing of these marketsthe Transactions, we could address, we devisedoperated under a strategy that allowed us to focus on our core expertise in synthetic biology while developing many different commercial product candidates via collaborations in a broad range of industries or end markets. We built our business primarily around the formation of ECCs, as well as certain research collaborations.
This ECC strategy allowed us to leverage our capabilities and capital across numerous product development programs and a broader landscape of end markets than we would have been capable of addressing on our own. The strategy also allowed us to participate in the potential upside from products that are enabled by our technologies across an extensive range of industries, without the need for us to invest considerable resources in bringing individual products to market. We presently are party to a number of these collaborations, which are in varying stages from research and development of product candidates to monitoring the progress of our collaborator in their further development and, we expect, commercialization of product candidates enabled through our collaboration.
Over time, our strategy has evolved away from ECC-type collaborations to relationships and structures that provideprovided us with more control and ownership over the development process and commercialization path. In these new relationships and structures, we bearhad more of the responsibility to fund the projects and execute on product candidate development.
First, in certain strategic circumstances, Eventually, we may enteraligned our businesses into a JV with a third party collaborator whereby we may contribute access totwo units comprising our technology, cash or both into the JV which we will jointly control with our collaborator. Pursuant to a JV agreement, we may be required to contribute additional capital to the JV,healthcare and we may be able to receive a higher financial return than we would normally receive from an ECC to the extent that we and our collaborator are successful in developing one or more products. Second, we are increasing the resources we are expending internally on early-stage proof of concept programs where we can leverage our competitive edge in gene program creation and host cell and genome expertise and are seeking to partner with more mature programs and capabilities, some of which may be through ECCs. In this way, we endeavor to leverage of our capital resources and ultimately hope to realize significant value from our mature assets. Our gas-to-liquid

platform for bioconversion of methane to higher carbon content compounds, which we refer to as our methane bioconversion platform, or MBP, is an example of our implementation of a JV approach. Based on our internally developed work on our MBP technology, we have executed two JV arrangements with related parties for specific end products.
As we consider the broad potential applications of our synthetic biology technologies, and consistent with the evolution of our business strategy, we have acquiredbioengineering assets, a number of ventures that are already enabling products that benefit from the application of synthetic biology. Our strategy contemplates the continued acquisition of product-focused companies that we believe may leverage our technologies and expertise in order to expand their respective product applications. We believe that the acquisition of these types of companies allows us to develop and commercialize innovative products and create significant value.
Consistent with the ongoing evolution of our strategy, from principally utilizing ECCs to seeking a more diverse approach to leverage our technology assets, we routinely consider ways to organize our business and the grouping of our assets to facilitate strategic opportunities. For example, effective January 1, 2018, we transferred substantially all of our gene and cell therapy assets for human health under a newly-formed wholly owned subsidiary, Precigen, Inc., or Precigen, and we consolidated therapeutic applications of our proprietary ActoBiotics platform under ActoBio Therapeutics, Inc., or ActoBio, another wholly owned subsidiary. Additionally, we may look to partner later-stage assets in the future.
Our ECCs
Although our strategy has evolved away from a focus primarily on ECCs, we remain party to a number of such collaborations, and we may, in the future, elect to enter into additional ECCs, or expand one or more of our existing ECCs. An ECC is an agreement with a collaborator to develop products based on our technologies in one or more specifically defined fields. These fields may be narrowly defined (representing, for example, a specific therapeutic approach for a single indication) or may be broad (representing, for example, an entire class of related products). In each case, we and the collaborator precisely define the field based on factors such as the expertise of the collaborator, the relative markets for the prospective products, the collaborator's resources available to commit to the ECC and our expectations as to other prospective ECCs in related areas. Regardless of the size of the field, under each ECC we grant the collaborator exclusive rights to our services and certain of our platform technologies to commercialize products within the field.
We may realize four general categories of revenue under our ECCs: (i) technology access fees upon signing; (ii) reimbursements of costs incurred by us for our research and development and/or manufacturing efforts related to specific applications provided for in the collaboration; (iii) milestone payments upon the achievement of specified development, regulatory and commercial activities; and (iv) royalties on sales of products arising from the collaboration. We may receive equity in lieu of cash for technology access fees and milestones and also may participate in capital raises to allow earlier-stage collaborators to focus their resources on product development. When such a collaborator develops greater operational or financial resources, however, its shares become a financial asset within Intrexon that is independent of our operational or collaborative purposes.
Generally, each of our ECCs is designed to continue in perpetuity unless terminated. Each of our collaborators, however, retains the right to terminate the ECC for any reason by providing us written notice a certain period of time prior to such termination, generally ninety days. The ECC is also terminable by either party upon the other party's breach of material provisions of the ECC. The failure of our collaborator to exercise diligent efforts to develop products within the field of the ECC constitutes such a breach.
In the event one of our ECCs terminates, we are entitled to immediately pursue a collaboration with a different counterparty within the field of the terminated ECC. Moreover, technologies and product candidates in a relatively early stage of development revert to us, along with data, materials and the rights to applicable regulatory filings related to the reverted products, enabling us to develop those product candidates ourselves or incorporate them into a future collaboration. Product candidates that are at a more advanced stage of development, such as those already generating revenue or being considered for approval by an applicable regulatory body at the time of the ECC's termination are retained by the former collaborator. The collaborator has the right to commercialize such retained products although we are entitled to the royalties or other compensation to which we would be entitled as if the ECC were stillsold in effect. Upon termination, we generally retain any technology access fees or other payments to which we are entitled through the date of termination.
In our ECCs, we retain rights to our existing intellectual property and generally any intellectual property developed using, or otherwise incorporating, our technologies. In addition, we are generally responsible for controlling the prosecution and enforcement of this intellectual property with the exception of the enforcement of patents directed solely and specifically to products developed within the field of each ECC.

Each of our ECCs requires the collaborator to indemnify us for all liability related to products produced pursuant to the ECC and to obtain insurance coverage related to product liability.
See Note 5 to our consolidated financial statements appearing elsewhere in this Annual Report for a discussionearly 2020. Some of the key financial terms of our significant ECCs.
Our operating subsidiaries
To derive value from the broad potential applications of our synthetic biology technologies, and consistent with the evolution of our business strategy, we routinely consider ways to organize our business to facilitate strategic opportunities. For example, effective January 1, 2018, we transferred substantially all of our gene and cell therapy assets for human health under a newly-formed wholly owned subsidiary, Precigen, and we consolidated therapeutic applications of our proprietary ActoBiotics platform under ActoBio. In addition, we have acquired a number of ventures that are already enabling products that benefit from the application of synthetic biology andbusinesses that we now operate as subsidiaries. Our strategy contemplatesdivested in connection with our focus on healthcare, include the continued formationfollowing operating subsidiaries and acquisition of such operating subsidiaries. As these enterprises develop, we will determine whether to maintain full ownership, introduce investors via either private or public financing, or seek strategic options to partner or divest the businesses.
Primary wholly owned operating subsidiaries
Precigen, Inc.
Precigen is a fully-integrated gene and cell therapy company committed to delivering precision medicines through innovation that puts patients first. Utilizing platform technologies owned by Precigen or licensed from Intrexon for programming and engineering genetic code, Precigen is developing and investigating next-generation therapeutics to enable patient-focused, cost-effective treatments to address unmet medical needs in the areas of immuno-oncology, autoimmune conditions, and infectious diseases. Precigen is designing investigational therapies intended to be controllable and targeted, with a broad pipeline of internal and partnered programs, all of which are at the preclinical or clinical stages.
ActoBio Therapeutics, Inc.
ActoBio is pioneering a new class of microbe-based ActoBiotics biopharmaceuticals that enable expression and local delivery of disease-modifying therapeutics. The ActoBiotics platform produces biologics through oral or topical administration with treatment applications across many diseases including oral, gastrointestinal, and autoimmune/allergic disorders. We believe this cost-effective approach to development will provide safer and more efficacious treatments than injectable biologics. ActoBio, which is party to a number of our ECC agreements, has a strong research and development pipeline with the latest stage candidate in Phase 2b clinical trials and an extensive portfolio of candidates ready for clinical development across a number of potential indications.
Trans Ova Genetics, L.C.
Trans Ova Genetics, L.C., or Trans Ova, is internationally recognized as a provider of industry-leading bovine reproductive technologies. Intrexon and Trans Ova are building upon Trans Ova's original platform with a goal of achieving higher levels of delivered value to dairy and beef cattle producers. ViaGen, L.C., or ViaGen, a wholly owned subsidiary of Trans Ova, is a provider of cloning technology for non-primate species. Exemplar Genetics, LLC, or Exemplar, a wholly owned subsidiary through the combined ownership of Trans Ova, ViaGen and us, is committed to enabling the study of life-threatening human diseases through the development of miniswine research models and services.JVs:
Okanagan Specialty Fruits, Inc.
Okanagan Specialty Fruits, Inc. and its affiliates, or Okanagan is the pioneering agricultural company behind the world's first non-browning apple without the use of any flavor altering chemical or antioxidant artificial

additives. Under our control, we worked with Okanagan is scalingto scale up its commercial supplies of non-browning apples and developingto develop new commercial tree fruit varieties intended to provide benefits to the entire supply chain, from growers to consumers. In 2020, we sold Okanagan in the TS Biotechnology Sale.
AquaBounty Technologies, Inc.
AquaBounty Technologies, Inc., or AquaBounty, is a company focused on improving productivity in commercial aquaculture, including the development of the AquAdvantage Salmon, an Atlantic salmon that has been genetically enhanced to reach market size in less time than conventionally farmed Atlantic salmon and approved by the FDA. Until October 2019, AquaBounty was a partially owned subsidiary of ours. In October 2019, we sold our ownership interests held in AquaBounty to an affiliate of Third Security.
EnviroFlight
In February 2016, we entered into a series of transactions involving a predecessor to EnviroFlight, or Old EnviroFlight, Darling, and a newly formed venture between us and Darling, EnviroFlight. This series of integrated transactions resulted in us acquiring substantially all of the assets of Old EnviroFlight and contemporaneously contributing all of these assets, with the exception of certain developed technology, and $3 million of cash to EnviroFlight in exchange for a non-controlling, 50 percent membership interest in EnviroFlight. Our contributions to EnviroFlight included an exclusive license to the developed technology that was retained by us. Darling received the remaining 50 percent membership interest in EnviroFlight as consideration for terminating rights previously held in the developed technology with Old EnviroFlight. EnviroFlight was formed to generate high nutrition, low environmental impact animal and fish feed, as well as fertilizer products, from black soldier fly larvae. On January 2, 2020, we sold all of our interests in EnviroFlight to Darling.
Human clinical trials under an IND
Clinical trials involve administering the product candidate to healthy volunteers or patients under the supervision of qualified investigators. Clinical trials must be conducted and monitored in accordance with the FDA's regulations. Further, each clinical trial must be reviewed and approved by an Institutional Review Board, or IRB, at or servicing each institution at which the clinical trial will be conducted. An IRB is charged with protecting the welfare and rights of trial participants and considers, among other things, whether the risks to individuals participating in the clinical trials are minimized and are reasonable in relation to anticipated benefits. Clinical trials involving recombinant DNA at institutions that receive any funding from the National Institutes of Health also must be reviewed by an institutional biosafety committee, an institutional committee that reviews and oversees basic and clinical research that utilizes recombinant DNA at that institution.
Human clinical trials typically are conducted in three sequential phases that may overlap or be combined:
Phase 1. The product candidate is introduced into healthy human subjects and tested for safety, dosage tolerance, absorption, metabolism, distribution, excretion and, if possible, to gain early understanding of its effectiveness. For some product candidates for severe or life-threatening diseases, especially when the product candidate may be too inherently toxic to ethically administer to healthy volunteers, the initial human testing is often conducted in patients with the targeted disease.
Phase 2. The product candidate is administered and evaluated in a limited patient population to identify possible adverse effects and safety risks, to evaluate preliminary efficacy evidence for specific targeted diseases and to determine dosage tolerance, optimal dosage and dosing schedule.
Phase 3. The product candidate is administered to an expanded patient population, often at geographically dispersed clinical trial sites, in adequate and well-controlled clinical trials to generate sufficient data to evaluate the safety and efficacy of the non-biologic drug, or the safety, purity, and potency of the biologic. These clinical trials are intended to establish the overall risk/benefit ratio of the product candidate and provide an adequate basis for product labeling.
Post-approval clinical trials, sometimes referred to as Phase 4 clinical trials, may be conducted, or may be required to be conducted, after initial approval to further assess the risk/benefit profile of the product and to gain additional experience from treatment of patients in the intended indication, including for long-term safety follow-up.
Additional regulation for gene therapy clinical trials
Additional standards apply to clinical trials involving gene therapy. The FDA has issued guidance documents regarding gene therapies, which relate to, among other things: preclinical assessments; chemistry, manufacturing and controls, or CMC, information that should be included in an IND application; the proper design of tests to measure product potency in support of an application; and long-term follow-up measures to observe delayed adverse effects in subjects exposed to investigational gene therapies when the risk of such effects is not low or when the gene therapy utilizes genome-editing technology, shows signs of persistence, has the potential for latency and reactivation, or genetically alters the human genome.
Compliance with cGMP requirements
Drug and biologics manufacturers must comply with applicable cGMP regulations. Manufacturers and others involved in the manufacture and distribution of such products also must register their establishments with the FDA and certain state agencies. Both domestic and foreign manufacturing establishments must register and provide additional information to the FDA upon

their initial participation in the manufacturing of drugs. Establishments may be subject to periodic, unannounced inspections by the FDA and other government authorities to ensure compliance with cGMP requirements and other laws. Discovery of problems may result in a government entity placing restrictions on a product, manufacturer or holder of an approved product, and may extend to requiring withdrawal of the product from the market.
United States review and approval processes
The results of the preclinical tests and clinical trials, together with detailed information relating to the product's CMC and proposed labeling, among other things, are submitted to the FDA as part of an application requesting approval to market the product for one or more uses, or indications. For gene therapies, selecting patients with applicable genetic defects is often a necessary condition to effective treatment and may require diagnostic devices that the FDA has cleared or approved prior to or contemporaneously with approval of the gene therapy.
Under the Pediatric Research Equity Act, or PREA, marketing applications generally must contain data to assess the safety and effectiveness of the biologic product candidate for the claimed indications in all relevant pediatric subpopulations and to support dosing and administration for each pediatric subpopulation for which the product candidate is safe and effective. The FDA may grant deferrals for submission of data or full or partial waivers. Unless otherwise required by regulation, PREA does not apply to any product candidate for an indication for which orphan designation has been granted.
On the basis of the marketing application and accompanying information, including the results of the inspection of the manufacturing facilities, the FDA may issue an approval letter or a complete response letter. An approval letter authorizes commercial marketing of the drug with specific prescribing information for specific indications. A complete response letter generally outlines the deficiencies in the submission and may require substantial additional testing or information for the FDA to reconsider the application. If those deficiencies have been addressed to the FDA's satisfaction in a resubmission of the application, the FDA may issue an approval letter.
If a product candidate receives regulatory approval, the approval may be significantly limited to specific diseases and dosages or the indications for use may otherwise be limited. Further, the FDA may require that certain contraindications, warnings or precautions be included in the product labeling. The FDA may impose restrictions and conditions on product distribution, prescribing or dispensing in the form of a Risk Evaluation and Mitigation Strategy, or REMS, or otherwise limit the scope of any approval. In addition, the FDA may require post-marketing clinical trials designed to further assess a non-biologic drug's safety and effectiveness, or a biologic's safety, purity, and potency, and testing and surveillance programs to monitor the safety of approved products that have been commercialized.
Orphan Drug Designation in the United States
Under the Orphan Drug Act, the FDA may grant orphan drug designation to drugs and biological products intended to treat a "rare disease or condition," which generally is a disease or condition that affects fewer than 200,000 individuals in the United States. Orphan drug designation must be requested before submitting a marketing application or supplement seeking approval for the orphan indication. After the FDA grants orphan drug designation, the common identity of the therapeutic agent and its potential orphan use are publicly disclosed by the FDA.
Orphan drug designation does not—by itself—convey any advantage in, or shorten the duration of, the regulatory review and approval process. If a product that has an orphan drug designation subsequently receives the first FDA approval for that drug or biologic for the indication for which it has been designated, the product is entitled to an orphan exclusivity period in which the FDA may not approve any other applications to market the same drug or biologic for the same indication for seven years.
Exceptions to the seven-year exclusivity period may apply in limited circumstances, such as where the sponsor of a different version of the product is able to demonstrate that its product is clinically superior to the approved orphan drug product. This exclusivity does not prevent a competitor from obtaining approval to market a different product that treats the same disease or condition, or the same product to treat a different disease or condition. The FDA can revoke a product's orphan drug exclusivity under certain circumstances, including when the holder of the approved orphan drug application is unable to assure the availability of sufficient quantities of the drug to meet patient needs. Orphan exclusivity operates independently from other regulatory exclusivities and other protections against generic or biosimilar competition.
A sponsor of a product application that has received an orphan drug designation is also granted tax incentives for clinical research undertaken to support the application. In addition, the FDA will typically coordinate with the sponsor on research study design for an orphan drug and may exercise its discretion to grant marketing approval on the basis of more limited

product safety and efficacy data than would ordinarily be required, based on the limited size of the applicable patient population.
Fast Track Designation
The FDA has a number of expedited review programs for drugs that are intended for the treatment of a serious or life-threatening condition. As one example, under the agency's Fast Track program, the sponsor of a new drug candidate may request the FDA to designate the product for a specific indication as a Fast Track product concurrent with or after the filing of the IND for the product candidate. The FDA must determine if the product candidate qualifies for Fast Track designation within 60 days after receipt of the sponsor's request.
In addition to other benefits, such as the ability to have more frequent interactions with the FDA, the agency may initiate review of sections of a Fast Track product's marketing application before the application is complete. This rolling review is available if the applicant provides and the FDA approves a schedule for the submission of the remaining information and the applicant pays applicable user fees. However, the FDA's review period for a Fast Track application does not begin until the last section of the marketing application is submitted. In addition, the Fast Track designation may be withdrawn by the FDA if the agency believes that the designation is no longer supported by data emerging in the clinical trial process.
Regenerative Medicine Advanced Therapy Designation
The FDA may grant regenerative medicine advanced therapy, or RMAT, designation to regenerative medicine therapies, which may include cell therapies, human gene therapies, therapeutic tissue engineering products, and human cell and tissue products, if certain criteria are met. In particular, a drug may be eligible for RMAT designation if the drug is a regenerative medicine therapy as defined in Section 506(g)(8) of the Federal Food, Drug, and Cosmetic Act; the drug is intended to treat, modify, reverse, or cure a serious or life-threatening disease or condition; and preliminary clinical evidence indicates that the drug has the potential to address unmet medical needs for such disease and condition. The FDA must determine if the product candidate qualifies for RMAT designation within 60 days after receipt of the sponsor's request.
A grant of RMAT designation includes all of the benefits of Fast Track designation, intensive guidance on efficient drug development beginning as early as Phase 1, and organizational commitment involving senior managers. The RMAT designation may be withdrawn by the FDA if the agency believes that the designation is no longer supported by data emerging in the clinical trial process.
Post-approval requirements
Rigorous and extensive FDA regulation of drugs and biologics continues after approval, including requirements relating to recordkeeping, periodic reporting, product sampling and distribution, adverse experiences with the product, cGMP, and advertising and promotion. Changes to the product, manufacturing process, or facility often require prior FDA approval before being implemented and other types of changes to the approved product, such as adding new indications and additional labeling claims, are also subject to further FDA review and approval. Failure to comply with the applicable requirements may result in administrative, judicial, civil or criminal actions and adverse publicity. These actions may include FDA's refusal to approve or delay in approving pending applications or supplemental applications, withdrawal of approval, clinical hold, suspension or termination of clinical trial, warning or untitled letters, product recalls, product seizures, total or partial suspension of production or distribution, injunctions, fines or other monetary penalties, refusals of government contracts, mandated corrective advertising or communications with healthcare providers, debarment, restitution, disgorgement of profits or other civil or criminal penalties.
Regulatory Exclusivity and Biosimilar Competition in the United States
In 2010, the federal Biologics Price Competition and Innovation Act, or BPCIA, was enacted, creating a statutory pathway for licensure, or approval, of biological products that are biosimilar to, and possibly interchangeable with, reference biological products licensed under the Public Health Service Act.
Under the BPCIA, innovator manufacturers of original biological products are granted 12 years of exclusive use after first licensure before biosimilar versions of such products can be licensed for marketing in the United States. This means that the FDA may not approve an application for a biosimilar product that references data in an innovator's Biologics License Application, or BLA, until 12 years after the date of approval of the reference biological product, with a potential six-month extension of exclusivity if certain pediatric studies are conducted and the results are reported to the FDA. A biosimilar application may be submitted four years after the date of licensure of the reference biological product, but the FDA cannot

approve the application until the full exclusivity period has expired. This 12-year exclusivity period operates independently from other protections that may apply to biosimilar competitors, including patents that are held for those products. Additionally, the BPCIA establishes procedures by which the biosimilar applicant must provide information about its application and product to the reference product sponsor, and by which information about potentially relevant patents is shared and litigation over patents may proceed in advance of approval. The BPCIA also provides a period of exclusivity for the first biosimilar to be determined by the FDA to be interchangeable with the reference product.
Under the Best Pharmaceuticals for Children Act, which was subsequently made applicable to biological products by the BPCIA, the FDA may also issue a Written Request asking a sponsor to conduct pediatric studies related to a particular active moiety; if the sponsor agrees and meets certain requirements, the sponsor may be eligible to receive an additional six months of marketing exclusivity for its drug product containing such active moiety.
Other regulatory exclusivity may be granted to drugs, including, but not limited to, three-year and five-year exclusivity granted to non-biologic drugs under the Drug Price Competition and Patent Term Restoration Act of 1984, also referred to as the Hatch-Waxman Amendments.
Depending upon the timing, duration, and specifics of FDA approval of product candidates, some of a sponsor's United States patents may be eligible for limited patent term extension under the Hatch-Waxman Amendments. The Hatch-Waxman Amendments permit a patent restoration term of up to five years as compensation for patent term lost during product development and the FDA regulatory review process. However, patent term restoration cannot extend the remaining term of a patent beyond a total of 14 years from the product's approval date. The United States Patent and Trademark Office, or USPTO, in consultation with the FDA, reviews and approves the application for any patent term extension or restoration. Only one patent applicable to an approved drug product is eligible for the extension and the application for the extension must be submitted prior to the expiration of the patent.
Foreign regulation of human therapeutics
In addition to regulations in the United States, our subsidiaries, such as PGEN and ActoBio, and our collaborators that are focused on the development of human therapeutic products will be subject to a variety of foreign regulations governing clinical trials and commercial sales and distribution of the products enabled by our technologies. Whether or not the developer obtains FDA approval for a product, they must obtain approval by the comparable regulatory authorities of foreign countries or economic areas, such as the European Union, before they may commence clinical trials or market products in those countries or areas. The approval process and requirements governing the conduct of clinical trials, product licensing, pricing and reimbursement vary greatly from place to place, and the time may be longer or shorter than that required for FDA approval.
Regulation of microbes and microbial products
The use of GMMs, such as our yeast and methanotroph strains, is subject to laws and regulations in many countries. In the United States, the EPA regulates the commercial use of many GMMs as well as potential products produced from GMMs. Various states within the United States could choose to regulate products made with GMMs as well. While the strain of genetically-modified yeast that we use, S. cerevisiae, is eligible for exemption from EPA review because it is generally recognized as safe, we must satisfy certain criteria to achieve this exemption, including, but not limited to, use of compliant containment structures and safety procedures. We expect to encounter GMM regulations in most if not all of the countries in that we may seek to make our products; however, the scope and nature of these regulations will likely vary from country to country. If we cannot meet the applicable requirements in countries in which we intend to produce our products using GMMs, then our business will be adversely affected.
Non-Healthcare Assets and Transition to Our Core Healthcare Business Model
Historically, we focused on programming biological systems for application across a variety of diverse end markets, including health, food, energy, and environment, but we have also consistently evolved the way in which we apply our synthetic biology technologies and the opportunities on which we have focused. In January 2020, we announced that we are increasing our focus on certain of our healthcare opportunities, which reflect our most-advanced platforms, and in connection therewith we divested a number of our non-healthcare assets and changed our name to Precigen, Inc. However, we continue to own our methane bioconversion business and our established bovine genetics company.
Prior to refocusing our business on healthcare, we sought to apply our synthetic biology technologies to a broad universe of markets. In order to operate in such a variety of markets, we built our business around collaborations, such as ECCs and JVs. Over time, we evolved away from entering into new collaborations and considered ways to reorganize our business to best leverage our

technology assets and focus on the opportunities that we believe are of the most immediate promise. Effective January 1, 2018, we transferred substantially all of our gene and cell therapy assets for human health to a newly-formed wholly owned subsidiary, PGEN, and we consolidated therapeutic applications of our proprietary ActoBiotics platform under ActoBio, another wholly owned subsidiary. In May 2019, we announced the alignment of our operations into two units focused on healthcare and bioengineering in order to better deploy resources, realize inherent synergies and position the company for growth with a core focus on healthcare.
In January 2020, we furthered our plans to enhance our focus on the healthcare industry when we sold a number of our bioengineering assets, or the TS Biotechnology Sale, to TS Biotechnology. Randal J. Kirk, who is the former CEO of Precigen and is currently the Executive Chairman and a member of our board of directors, serves as the Senior Managing Director and Chief Executive Officer of Third Security and owns 100 percent of the equity interests of Third Security. The assets divested in the TS Biotechnology Sale included our domain name dna.com and all of our equity interests in (1) Blue Marble AgBio LLC, or Blue Marble AgBio, a Delaware limited liability company, that we formed to hold our agricultural biotechnology assets, (2) ILH Holdings, Inc., or ILH Holdings, a Delaware corporation, which housed our yeast fermentation technology platform for the biologic production of active pharmaceutical ingredients and other fine chemicals, (3) Intrexon Produce Holdings, Inc., or IPHI, a Delaware corporation, which owns Okanagan Specialty Fruits, Inc., or Okanagan Specialty Fruits, the agricultural company developing non-browning apple without the use of any artificial additives, (4) Intrexon UK Holdings Inc., or Intrexon UK Holdings, a Delaware corporation, which owns Oxitec, Limited
Oxitec Limited,Ltd., or Oxitec, is a pioneering company inthe developer of an insect-based biological insect control solutions. Oxitecsystem, (5) Oragenics, which is developing products that use genetic engineering to control insect pests that spreadantibiotics against infectious disease and, damage crops. Amongin collaboration with ActoBio, treatments for oral mucositis, and (6) SH Parent, Inc., or SH Parent, a Delaware corporation, which held our ownership interests in Surterra Holdings, Inc., or Surterra, a cannabinoid-based wellness company. In addition, in January 2020, in a separate transaction, we sold our interest in EnviroFlight, LLC, or EnviroFlight, to Darling. See "Notes to the applicationsConsolidated Financial Statements - Note 3" appearing elsewhere in this Annual Report for a discussion of itsthe Transactions and the discontinued operations.
Remaining Non-Healthcare Businesses
While our primary focus is in healthcare, after the Transactions we continue to have two non-healthcare businesses: our methane bioconversion business, MBP Titan, LLC, or MBP Titan, and our established bovine genetics company, Trans Ova Genetics, L.C., or Trans Ova.
MBP Titan
MBP Titan is our standalone subsidiary comprising our Methane Bioconversion Platform, or MBP, and our associated technologies, personnel, and facilities. Our MBP is designed to turn natural gas into more valuable and usable energy and chemical products through novel, highly engineered bacteria that utilize specific energy feedstocks. This technology can use pipeline grade natural gas, to synthesize commercial end products, such as isobutanol for gasoline blending, 2,3 Butanediol for conversion to synthetic rubber and 1,4 Butanediol for polyester. Traditional methods of feedstock conversion for fuel production and other materials are costly, wasteful and often come with significant environmental impact. The MBP production method has the potential to transform the generation of drop-in fuels, synthetic rubber, plastic material, and animal feed through less resource intensive and more sustainable approaches than conventional methods. In aggregate, the value of such fuel and chemical products and animal feed are significant, representing the potential of billions of dollars in estimated market opportunity.
We are currently assessing the appropriate next steps with respect to the future of our MBP platform, which could include a financing directly into MBP Titan, or other strategic alternatives. As part of this assessment, we are also considering the future of our joint ventures with Intrexon Energy Partners and Intrexon Energy Partners II.
See "Notes to the Consolidated Financial Statements - Note 5" appearing elsewhere in this Annual Report for a discussion of Intrexon Energy Partners and Intrexon Energy Partners II and other significant collaborations between us and our JVs.
Trans Ova
Trans Ova is internationally recognized as a provider of industry-leading bovine reproductive technologies. Trans Ova offers bovine embryo transfer technologies, in addition to other advanced reproductive technologies, including in-vitro fertilization, or IVF, sexed-semen, genetic preservation and cloning. Through extensive research programs and applied science, Trans Ova has developed and implemented new technologies that, we believe, have helped to move the science of bovine genetic improvement forward. We and Trans Ova are evaluating the optimal means to utilize these technology assets and Trans Ova's broad customer base and deep industry knowledge to maximize the value of the business.
As of December 31, 2019, Trans Ova had 229 production employees. Trans Ova's primary domestic production facilities, including approximately 360 acres of land, are located in Sioux Center, Iowa. The land and facilities are primarily used for our embryo

which uses advanced geneticstransfer and molecular biology, Oxitec has developedin vitro fertilization processes, as well as housing livestock used in such processes. As of December 31, 2019, Trans Ova also leased or owned regional production facilities and land in California, Maryland, Missouri, New York, Oklahoma, South Dakota, Texas, and Washington for these purposes.
Competition: Non-Healthcare Assets
Energy Markets
MBP Titan differentiates itself through its use of cellular engineering experience and suite of technologies to develop environmentally-friendly products in the chemical and animal feed industries. While we believe this proprietary platform holds the potential to modernize the existing gas-to-liquids industry by generating important fuels and chemicals at a new and innovative solution to controlling Aedes aegypti, a mosquito that is a known vector for the transmission of infectious disease including dengue fever, chikungunya, and Zika. This genetically engineered, or GE, self-limiting linefraction of the Aedes aegypti mosquito, cost of traditional conversion methods, any products MBP Titan develops will still compete with legacy technologies and approaches to fuel production. Many of MBP Titan's competitors in the energy market are significantly larger than MBP Titan and have significantly greater financial, technical and human resource capabilities. Further, MBP Titan is still developing our products and scaling them, while its competitors, who are utilizing more traditional methods, have the benefit of developed processes that are accepted by the market. In addition, there are others, including competitors with better financial, technical, and resources, and more experience, pursuing alternatives fuels as well as companies pursuing technologies based on the conversion of methanotrophs in the energy sector. MBP Titan's ability to compete successfully will depend on its ability to develop and produce products that can be scaled to reach the market in a timely manner and are environmentally superior to and/or OX513A,are less expensive to produce than other products on the market.
Animal Genetics Market
We believe Trans Ova's focus on continuous research and use of applied science allow Trans Ova to develop and implement new technologies that will help move the science of bovine genetic improvement forward rapidly and differentiate it from its competitors. However, there are a number of companies that compete with Trans Ova, including traditional breeding companies and other companies that use advanced reproductive technologies. These competitors may be larger and have better funding than Trans Ova. In addition, Trans Ova's competitors may be companies that have a predominant focus on developing the newest technologies in animal breeding whereas Trans Ova is one part of our overall strategy. Finally, Trans Ova's competitors that operate using more traditional breeding techniques may enjoy greater market acceptance over Trans Ova, and other companies, that utilize genetic manipulation, semen sorting and cloning techniques.
Energy and Chemical Regulation
The environmental regulations discussed above also govern the development, manufacture and marketing of energy and chemical products. Chemical products produced by us and our collaborators may be subject to government regulations in our target markets. In the United States, the EPA administers the requirements of the TSCA, which regulates the commercial registration, distribution and use of many chemicals. Before an entity can manufacture or distribute significant volumes of a chemical, it needs to determine whether that chemical is listed in the TSCA inventory. If the substance is listed, then manufacture or distribution can commence immediately. If not, then in most cases a "Chemical Abstracts Service" number registration and pre-manufacture notice must be filed with the EPA, which has been approved90 days to review the filing. A similar requirement exists in Europe under the REACH regulation. Additional regulations may apply to specific subsets of chemicals such as, for example, fuel products that are subject to regulation by Brazil's National Biosafety Committee,various government agencies including, in the United States, the EPA and the California Air Resources Board.
Our Historic Operations
Until the closing of the Transactions, we operated under a strategy that allowed us to focus on our core expertise in synthetic biology while developing many different commercial product candidates via collaborations in a broad range of industries or CTNBio, for unrestricted releases throughoutend markets. We built our business primarily around the country. Additionally, open field trialsformation of ECCs, as well as certain research collaborations. Over time, our strategy has evolved away from ECC-type collaborations to relationships and structures that provided us with more control and ownership over the development process and commercialization path. In these mosquitoes have been conductednew relationships and structures, we had more of the responsibility to fund the projects and execute on product candidate development. Eventually, we aligned our businesses into two units comprising our healthcare and bioengineering assets, a number of which we sold in Brazil,early 2020. Some of the Cayman Islands, Panama,key businesses that we divested in connection with our focus on healthcare, include the following operating subsidiaries and Malaysia under relevant permits or approvals. Further approvals will be required forJVs:
Okanagan Specialty Fruits, Inc.
Okanagan is the pioneering agricultural company behind the world's first non-browning apple without the use of any artificial

additives. Under our control, we worked with Okanagan to scale up its commercial productionsupplies of non-browning apples and use.
Primary majority-owned operating subsidiaryto develop new commercial tree fruit varieties intended to provide benefits to the entire supply chain, from growers to consumers. In 2020, we sold Okanagan in the TS Biotechnology Sale.
AquaBounty Technologies, Inc.
AquaBounty Technologies, Inc., or AquaBounty, of which we owned approximately 58 percent as of December 31, 2017, is focusinga company focused on improving productivity in commercial aquaculture, including the development of the AquAdvantage Salmon, or AAS, an Atlantic salmon that has been genetically enhanced to reach market size in less time than conventionally farmed Atlantic salmon and approved by the Food and Drug Administration, or FDA. Until October 2019, AquaBounty was a partially owned subsidiary of ours. In January 2018, AquaBounty raised $12.0 million through an underwritten public offering, in whichOctober 2019, we participated by investing $5 million. As a result of this transaction,sold our ownership decreased to approximately 53 percent. In the future, our ownership stakeinterests held in AquaBounty may drop below 50 percent, which may result in us deconsolidating AquaBounty.
Joint ventures
The following represent our significant JVs as of December 31, 2017.
Intrexon Energy Partners
In March 2014, we and certain investors, or the IEP Investors, including affiliatesto an affiliate of Third Security, LLC, or Third Security, a related party, entered into a Limited Liability Company Agreement which governs the affairs and conduct of business of Intrexon Energy Partners, LLC, or Intrexon Energy Partners, a JV formed to optimize and scale-up our MBP technology for the production of certain fuels and lubricants. We also entered into an ECC with Intrexon Energy Partners providing exclusive rights to our technology for the use in bioconversion, as a result of which we received a technology access fee of $25 million while retaining a 50 percent membership interest in Intrexon Energy Partners.The IEP Investors made initial capital contributions, totaling $25 million in the aggregate, in exchange for pro rata membership interests in Intrexon Energy Partners totaling 50 percent. We committed to make additional capital contributions of up to $25 million, and the IEP Investors, as a group and pro rata in accordance with their respective membership interests in Intrexon Energy Partners, have committed to make additional capital contributions of up to $25 million, at the request of the Intrexon Energy Partners' board of managers, or the Intrexon Energy Partners Board, and subject to certain limitations. Intrexon Energy Partners is governed by the Intrexon Energy Partners Board which has five members. Two members of the Intrexon Energy Partners Board are designated by us and three members are designated by a majority of the IEP Investors. We and the IEP Investors have the right, but not the obligation, to make additional capital contributions above the initial limits when and if solicited by the Intrexon Energy Partners Board.
Intrexon Energy Partners II
In December 2015, we and certain investors, or the IEPII Investors, entered into a Limited Liability Company Agreement which governs the affairs and conduct of business of Intrexon Energy Partners II, LLC, or Intrexon Energy Partners II, a JV formed to utilize our MBP technology for the production of 1,4-butanediol, an industrial chemical intermediate used to manufacture spandex, polyurethane, plastics, and polyester. We also entered into an ECC with Intrexon Energy Partners II providing exclusive rights to our technology for use in the field, as a result of which we received a technology access fee of $18 million while retaining a 50 percent membership interest in Intrexon Energy Partners II.The IEPII Investors made initial capital contributions, totaling $18 million in the aggregate, in exchange for pro rata membership interests in Intrexon Energy Partners II totaling 50 percent. In December 2015, the owners of Intrexon Energy Partners II made a capital contribution of $4 million, half of which was paid by us. We committed to make additional capital contributions of up to $10 million, and the IEPII Investors, as a group and pro rata in accordance with their respective membership interests in Intrexon Energy Partners II, have committed to make additional capital contributions of up to $10 million, at the request of the Intrexon Energy Partners II's board of managers, or the Intrexon Energy Partners II Board, and subject to certain limitations. Intrexon Energy Partners II is governed by the Intrexon Energy Partners II Board which has five members. One member of the Intrexon Energy Partners II Board is designated by us and four members are designated by a majority of the IEPII Investors. We and the IEPII Investors have the right, but not the obligation, to make additional capital contributions above the initial limits when and if solicited by the Intrexon Energy Partners II Board.

Security.
EnviroFlight
In February 2016, we entered into a series of transactions involving a predecessor to EnviroFlight, LLC, or Old EnviroFlight, Darling Ingredients Inc., or Darling, and a newly formed venture between us and Darling, or New EnviroFlight. This series of integrated transactions resulted in us acquiring substantially all of the assets of Old EnviroFlight and contemporaneously contributing all of these assets, with the exception of certain developed technology, and $3 million of cash to New EnviroFlight in exchange for a non-controlling, 50 percent membership interest in New EnviroFlight. Our contributions to New EnviroFlight included an exclusive license to the developed technology that was retained by us. Darling received the remaining 50 percent membership interest in New EnviroFlight as consideration for terminating rights previously held in the developed technology with Old EnviroFlight. New EnviroFlight was formed to generate high nutrition, low environmental impact animal and fish feed, as well as fertilizer products, from black soldier fly larvae. We and Darling, as members, have each satisfied the commitment to make additional capital contributionsOn January 2, 2020, we sold all of up to $5 million to fund ongoing operations of New EnviroFlight.
Intrexon T1D Partners
In March 2016, we and certain investors, the T1D Investors, including affiliates of Third Security, entered into a Limited Liability Company Agreement which governs the affairs and conduct of business of Intrexon T1D Partners, LLC, or the Intrexon T1D Partners, a JV formed to utilize our proprietary ActoBiotics platform to develop and commercialize products to treat type 1 diabetes. We also entered into an ECC with Intrexon T1D Partners which provides the exclusive rights to our technology for use in the field, as a result of which we received a technology access fee of $10 million while retaining a 50 percent membership interest in Intrexon T1D Partners. The T1D Investors made initial capital contributions, totaling $10 million in the aggregate, in exchange for pro rata membership interests in Intrexon T1D Partners totaling 50 percent. We committedEnviroFlight to make capital contributions of up to $5 million, and the T1D Investors, as a group and pro rata in accordance with their respective membership interests in Intrexon T1D Partners, have committed to make additional capital contributions of up to $5 million, at the request of Intrexon T1D Partners' board of managers, or the Intrexon T1D Partners Board, and subject to certain limitations. Intrexon T1D Partners is governed by the Intrexon T1D Partners Board, which has five members. Two members of the Intrexon T1D Partners Board are designated by us and three members are designated by a majority of the T1D Investors. We and the T1D Investors have the right, but not the obligation, to make additional capital contributions above these limits when and if solicited by the Intrexon T1D Partners Board.Darling.
S & I Ophthalmic
In September 2013, we entered into a Limited Liability Company Agreement with Sun Pharmaceutical Industries, Inc., an indirect subsidiary of Sun Pharmaceutical Industries Ltd., an international specialty pharmaceutical company focused on chronic diseases, to form S & I Ophthalmic, LLC, or S & I Ophthalmic. In December 2017, the S & I Ophthalmic board of managers agreed to dissolve the JV and terminate the ECC with us. Upon the dissolution, we received $2.6 million, which represents our portion of S & I Ophthalmic's remaining cash after all liabilities were settled.
OvaXon
In December 2013, we entered into an ECC with OvaScience, Inc., or OvaScience, a life sciences company focused on the discovery, development and commercialization of new treatments for infertility. Additionally, we and OvaScience formed OvaXon, LLC, or OvaXon, a JV to create new applications for improving human and animal health. Both we and OvaScience made an initial capital contribution of $1.5 million in January 2014 for a 50 percent membership interest in OvaXon. OvaXon is governed by the OvaXon board of managers, or the OvaXon Board, which has four members, two each from us and OvaScience. In cases in which the OvaXon Board determines that additional capital contributions are necessary in order for OvaXon to conduct business and comply with its obligations, each of us and OvaScience have the right, but not the obligation, to make additional capital contributions to OvaXon subject to the terms of the agreement. OvaScience also licensed certain technology relating to egg precursor cells to OvaXon pursuant to a separate license agreement. In February 2018, OvaScience provided their notice of termination of the ECC between them and us, to be effective in May 2018 in accordance with the ECC agreement. We and OvaScience are in discussions regarding dissolving the OvaXon JV and terminating the related ECC agreement.
See Note 5 to our consolidated financial statements appearing elsewhere in this Annual Report for a discussion of significant collaborations between us and our JVs.

Mergers, acquisitions, and technology in-licensing
We may augment our suite of proprietary technologies through mergers or acquisitions of technologies which then become available to new or existing ventures, including operating subsidiaries, JVs, and collaborations. Among other things, we may pursue technologies that we believe will be generally complementary to our existing technologies and also meet our desired return on investment and other economic criteria. In certain cases, such technologies may already be applied in the production of products or services and in these cases we may seek to expand the breadth or efficacy of such products or services through the use of our technologies. See Note 3 to our consolidated financial statements appearing elsewhere in this Annual Report for further discussion of mergers, acquisitions or significant technology in-licensing activities in 2017.
Competition
We believe that we are a leader in synthetic biology. We do not believe that we have any direct competitors who provide similar technologies which fully enable the commercialization of products developed using synthetic biology across a broad spectrum of biologically based industries. As a result, we believe our competition is more indirect and general in nature, and falls into three broad categories:
Synthetic biology service providers. There are companies that have competing technologies for individual pieces of our suite of complementary technologies. For example, there are companies that can synthesize DNA, and there are companies that can develop monoclonal antibodies. One portion of our proprietary technology related to DNA synthesis and assembly includes the ability to de novo synthesize DNA. We believe the following companies engage in the manufacture of DNA componentry: ATUM, Inc., Blue Heron Biotech, LLC (a subsidiary of OriGene), Integrated DNA Technologies, Inc. (IDT), GenScript USA, Inc., and Life Technologies Corporation, now part of Thermo Fisher Scientific Inc.
Industrial companies who may develop their own approach to synthetic biology. Rather than becoming a collaborator with us, potential collaborators may decide to invest time and capital to internally develop their own synthetic biology capabilities. For example, large biopharmaceutical companies, energy companies, and ag-bio companies may pursue a proprietary synthetic biology strategy.
Industrial companies who may develop competing products using other technologies. Products enabled by our synthetic biology will face competition in the market, including from products which have been developed using other industrial technologies. For example, large biopharmaceutical companies pursue other technologies for drug development, and large ag-bio companies pursue other technologies for the development of genetically modified crops. The rapidly evolving market for developing GE T-cells in particular, a primary focus of our collaboration with ZIOPHARM Oncology, Inc., or ZIOPHARM, is characterized by intense competition and rapid innovation. Genetically engineering T-cells faces significant competition in the chimeric antigen receptor, or CAR, technology space from multiple companies and their collaborators, such as Novartis/University of Pennsylvania, Bluebird Bio/Celgene/Baylor College of Medicine/Five Prime/Gilead Sciences/ViroMed Laboratories, Kite Pharma/National Cancer Institute, Juno Therapeutics/Fred Hutchinson Cancer Research Center/Memorial Sloan-Kettering Cancer Center/Seattle Children's Research Institute, Cellectis/Pfizer/Servier, Adaptimmune/GSK and Bellicum Pharmaceuticals. We face competition from non-cell based treatments offered by other companies such as Amgen, AstraZeneca, Bristol-Myers, Incyte, Merck, and Roche.
Intellectual property
As we advance technologies across multiple platforms and synthetic biology areas, correspondingly, we apply a multilayered approach for protecting intellectual property relating to the inventions we have developed internally as well as those we have acquired from third parties, such as by assignment or by in-license. We seek patent protection in the United States and in other countries for our inventions and discoveries, and we develop and protect our key know-how and trade secrets relating to our platform technologies as well as to the products we are developing with our subsidiaries, JVs, and collaborations.
We seek patent protection for our platform technologies, including but not limited to our (i) switch technology; (ii) activator ligands for our switch technology; (iii) portfolio around various genetic componentry such as vectors, cells and organisms containing these genetic componentry; and (iv) cell identification and selection platform. In addition, we seek patents covering specific collaborator's products. With respect to a particular collaborator's product, we may seek patent protection on some or all of the following aspects of the invention such as: the compound or material composition of matter and/or the method or process of making or using the composition.

Through the use of our various platform technologies we seek to design and build proprietary compounds, vectors, methods and processes across a variety of end markets. In particular, we focus our intellectual property on synthetic biology technologies that provide platforms for the design and creation of cells, vectors and components for our subsidiaries, JVs, and collaborations. In addition, we may pursue intermediate and product-specific patents associated with our subsidiaries', JVs', and collaborations' lead programs.
Our success depends, in part, upon our ability to obtain patents and maintain adequate protection for our intellectual property relating to our technologies and products and potential products. We have adopted a strategy of seeking patent protection in the United States and in other jurisdictions globally as we deem appropriate under the circumstances, with respect to certain of the technologies used in or relating to our products and processes. For instance, where we believe appropriate, we have also filed counterpart patents and patent applications in other countries, including Australia, Argentina, Brazil, Canada, China, Europe, Hong Kong, India, Indonesia, Israel, Japan, Korea, Mexico, New Zealand, Philippines, Russia, Singapore, South Africa and Taiwan. In the future we may file in these or additional jurisdictions as deemed appropriate for the protection of our technologies.
As of December 31, 2017, we owned at least 55 issued U.S. patents and 55 pending U.S. patent applications relating to certain aspects of our technologies, and we have pursued counterpart patents and patent applications in other jurisdictions around the world, as we have deemed appropriate. We continue to actively develop our portfolio through the filing of new patent applications, provisional and continuations or divisionals relating to our technologies, methods and products as we and our collaborators deem appropriate.
We have strategic positioning with respect to our key technologies including our owned patent portfolios directed to: our switch technology covering aspects of our switches and gene modulation systems, with a last to expire patent currently in 2032; our portfolio around various genetic componentry, such as vectors, cells and organisms containing these genetic componentry, and their use, with a last to expire patent in 2034; our activator ligand technology covering aspects of our activator ligands and their use, with a last to expire patent in 2034; and our cell identification and selection technology covering aspects of our cell identification and selection platform, including our cell purification, isolation, characterization and manipulation technologies, with a last to expire patent in 2031. Although we cannot be assured that these patents may not be subject to challenge in the future, as of this filing, there are currently no material contested proceedings and/or third party claims with respect to any of these patent portfolios.
Additionally, we complement our intellectual property portfolio with exclusive and non-exclusive patent licenses and options for licenses to third party technologies.
A principal component of our strategy is maximizing the value of our ECCs through our intellectual property that covers our technologies, which is accentuated by intermediate and program-specific intellectual property protections. In addition to owned and in-licensed patents, we solidify our intellectual property protection through a combination of trade secrets, know-how, confidentiality, nondisclosure and other contractual provisions, and security measures to protect our confidential and proprietary information related to each platform and collaborator program. We regularly assess and review the risks and benefits of protecting our developments through each aspect of intellectual property available to us.
Because we rely on trade secrets, know-how and continuing technological advances to protect various aspects of our core technology, we require our employees, consultants and scientific collaborators to execute confidentiality and invention assignment agreements with us to maintain the confidentiality of our trade secrets and proprietary information. Our confidentiality agreements generally provide that the employee, consultant or scientific collaborator will not disclose our confidential information to third parties. These agreements also provide that inventions conceived by the employee, consultant or scientific collaborator in the course of working for us will be our exclusive property. Additionally, our employees agree to take certain steps to facilitate our assertion of ownership over such intellectual property. These measures may not adequately protect our trade secrets or other proprietary information. If they do not adequately protect our rights, third parties could use our technologies, and we could lose any competitive advantage we may have. In addition, others may independently develop similar proprietary information or techniques or otherwise gain access to our trade secrets, which could impair any competitive advantage we may have.
Regulatory environment
Regulations affecting Intrexon
Our ongoing research and development relies on evaluations in animals, which may become subject to bans or additional regulations. As described below, our research operations are also subject to various environmental regulations. However, while

most of the current laws and regulations concerning synthetic biology relate to the end products produced using synthetic biology, this may change. For example, in December 2010, the Presidential Commission for the Study of Bioethical Issues recommended that the federal government oversee, but not regulate, synthetic biology research. The Presidential Commission also recommended that the federal government lead an ongoing review of developments in the synthetic biology field and that the federal government conduct a reasonable risk assessment before the field release of synthetic organisms.
As discussed below and in "Risk factors - Risks associated with our business strategy," the products produced by us and our collaborators enabled by our technology platforms are subject to extensive regulation. While we and our subsidiaries maintain regulatory compliance practices, we rely on our collaborators' compliance with laws and regulations applicable to the products they produce. We do not independently monitor whether our collaborators comply with applicable laws and regulations. Please see the risk factor entitled "Markets in which we, our JVs, and collaborators are developing products using our technologies are subject to extensive regulation, and we rely on our JVs and collaborators to comply with all applicable laws and regulations."
Environmental regulations affecting Intrexon, our JVs and our collaborators
Our JVs and collaborators and we are subject to various federal, state and local environmental laws, rules and regulations, including those relating to the discharge of materials into the air, water and ground, the generation, storage, handling, use, transportation and disposal of hazardous materials and the health and safety of employees with respect to laboratory activities required for the development of products and technologies. These laws and regulations require us and our JVs and collaborators to obtain environmental permits and comply with numerous environmental restrictions. These laws and regulations also may require expensive pollution control equipment or operational changes to limit actual or potential impacts to the environment.
Our laboratory activities and those of our JVs and collaborators inherently involve the use of potentially hazardous materials, which are subject to health, safety and environmental regulations. We design our infrastructure, procedures and equipment to meet our obligations under these regulations. We perform recurring internal and third-party audits and provide employees ongoing training and support, as required. All of our employees must comply with safety instructions and procedures, which are codified in our employment policies. Federal and state laws and regulations impose requirements on the production, importation, use and disposal of chemicals and genetically modified microorganisms, which impact us and our JVs and collaborators. Our, our JVs' and our collaborators' processes may contain GE organisms which, when used in industrial processes, are considered new chemicals under the Toxic Substances Control Act, or TSCA, program of the U.S. Environmental Protection Agency, or EPA. These laws and regulations would require us, our JVs and collaborators to obtain and comply with the EPA's Microbial Commercial Activity Notice process to operate. In the European Union, we and our JVs and collaborators may be subject to a chemical regulatory program known as REACH (Registration, Evaluation, Authorization and Restriction of Chemical Substances). Under REACH, companies are required to register their products with the European Commission, and the registration process could result in significant costs or delay the manufacture or sale of products in the European Union.
Regulations affecting us and our collaborators
Human therapeutics regulation
Government authorities in the United States, at the federal, state and local level, and in other countries extensively regulate, among other things, the research, development, testing, manufacture, including any manufacturing changes, packaging, storage, recordkeeping, labeling, advertising, promotion, distribution, marketing, import and export of pharmaceutical products such as those being developed by our collaborators. The processes for obtaining regulatory approvals in the United States and in foreign countries, along with subsequent compliance with applicable statutes and regulations, require the expenditure of substantial time and financial resources.
In the United States, pharmaceuticals must receive approval from the FDA before being marketed. The FDA approves drug products other than biological products through its authority under the Federal Food, Drug, and Cosmetic Act, or FDCA, and implementing regulations. The FDA licenses biological drug products, or biologics, through its authority under the Public Health Service Act, or PHSA, and implementing regulations. The development processes for obtaining FDA approval for a non-biological drug product, or a drug, under the FDCA and for biologic licensure under the PHSA are generally similar, but have product-related differences reflected in regulations and in FDA guidance documents.

U.S. pharmaceutical development process
The process required by FDA before a pharmaceutical product candidate may be marketed generally involves the following:
completion of preclinical laboratory tests and in vivo studies in accordance with FDA's current Good Laboratory Practice regulations and other applicable requirements;
submission to FDA of an application for an Investigational New Drug exemption, or IND;
approval by an independent institutional review board, or IRB, of each clinical site before a clinical trial is initiated;
performance of adequate and well-controlled human clinical trials according to FDA's GCP regulations, and any additional requirements for the protection of human research subjects and their health information, to establish the safety and efficacy of the proposed biologic product candidate for its intended use;
preparation and submission to FDA of an application for marketing approval that includes substantial evidence of safety, purity and potency for a biologic, or of safety and efficacy for a non-biologic drug, from results of nonclinical testing and clinical trials;
satisfactory completion of an FDA inspection of the manufacturing facility or facilities where the product candidate is produced to assess compliance with current Good Manufacturing Practice, or cGMP, and to assure that the facilities, methods and controls are adequate to preserve the product candidate's identity, safety, strength, quality, potency and purity;
potential FDA inspection of the nonclinical and clinical trial sites that generated the data in support of the application; and
FDA review and approval or licensure, of the application.
Human clinical trials under an IND
Clinical trials involve administering the product candidate to healthy volunteers or patients under the supervision of qualified investigators. Clinical trials must be conducted and monitored in accordance with the FDA's regulations. Further, each clinical trial must be reviewed and approved by an Institutional Review Board, or IRB, at or servicing each institution at which the clinical trial will be conducted. An IRB is charged with protecting the welfare and rights of trial participants and considers, among other things, whether the risks to individuals participating in the clinical trials are minimized and are reasonable in relation to anticipated benefits. Clinical trials involving recombinant DNA at institutions that receive any funding from the National Institutes of Health also must be reviewed by an institutional biosafety committee, an institutional committee that reviews and oversees basic and clinical research that utilizes recombinant DNA at that institution.
Human clinical trials typically are conducted in three sequential phases that may overlap or be combined:
Phase 1. The product candidate is introduced into healthy human subjects and tested for safety, dosage tolerance, absorption, metabolism, distribution, excretion and, if possible, to gain early understanding of its effectiveness. For some product candidates for severe or life-threatening diseases, especially when the product candidate may be too inherently toxic to ethically administer to healthy volunteers, the initial human testing is often conducted in patients.
Phase 2. The product candidate is evaluated in a limited patient population to identify possible adverse effects and safety risks, to evaluate preliminary efficacy evidence for specific targeted diseases and to determine dosage tolerance, optimal dosage and dosing schedule.
Phase 3. The product candidate is administered to an expanded patient population at geographically dispersed clinical trial sites in adequate and well-controlled clinical trials to generate sufficient data to statistically confirm the safety and efficacy of the drug, or the safety, purity, and potency of the biologic. These clinical trials are intended to establish the overall risk/benefit ratio of the product candidate and provide an adequate basis for product labeling.
Phase 1. The product candidate is introduced into healthy human subjects and tested for safety, dosage tolerance, absorption, metabolism, distribution, excretion and, if possible, to gain early understanding of its effectiveness. For some product candidates for severe or life-threatening diseases, especially when the product candidate may be too inherently toxic to ethically administer to healthy volunteers, the initial human testing is often conducted in patients with the targeted disease.
Phase 2. The product candidate is administered and evaluated in a limited patient population to identify possible adverse effects and safety risks, to evaluate preliminary efficacy evidence for specific targeted diseases and to determine dosage tolerance, optimal dosage and dosing schedule.
Phase 3. The product candidate is administered to an expanded patient population, often at geographically dispersed clinical trial sites, in adequate and well-controlled clinical trials to generate sufficient data to evaluate the safety and efficacy of the non-biologic drug, or the safety, purity, and potency of the biologic. These clinical trials are intended to establish the overall risk/benefit ratio of the product candidate and provide an adequate basis for product labeling.
Post-approval clinical trials, sometimes referred to as Phase 4 clinical trials, may be conducted, or may be required to be conducted, after initial approval to further assess the risk/benefit profile of the product and to gain additional experience from treatment of patients in the intended indication, particularlyincluding for long-term safety follow-up.

Additional regulation for gene therapy clinical trials
Additional standards apply to clinical trials involving gene therapy. The FDA has issued guidance documents regarding gene therapies, which relate to, among other things: preclinical assessments; chemistry, manufacturing and controls, or CMC, information that should be included in an IND application; the proper design of tests to measure product potency in support of an application; and long-term follow-up measures to observe delayed adverse effects in subjects exposed to investigational gene therapies when the risk of such effects is high.not low or when the gene therapy utilizes genome-editing technology, shows signs of persistence, has the potential for latency and reactivation, or genetically alters the human genome.
Compliance with cGMP requirements
Drug and biologics manufacturers must comply with applicable cGMP regulations. Manufacturers and others involved in the manufacture and distribution of such products also must register their establishments with the FDA and certain state agencies. Both domestic and foreign manufacturing establishments must register and provide additional information to the FDA upon

their initial participation in the manufacturing process.of drugs. Establishments may be subject to periodic, unannounced inspections by the FDA and other government authorities to ensure compliance with cGMP requirements and other laws. Discovery of problems may result in a government entity placing restrictions on a product, manufacturer or holder of an approved product, and may extend to requiring withdrawal of the product from the market.
U.S.United States review and approval processes
The results of the preclinical tests and clinical trials, together with detailed information relating to the product's CMC and proposed labeling, among other things, are submitted to the FDA as part of an application requesting approval to market the product for one or more uses, or indications. For gene therapies, selecting patients with applicable genetic defects is often a necessary condition to effective treatment and may require diagnostic devices that the FDA has cleared or approved.approved prior to or contemporaneously with approval of the gene therapy.
Under the Pediatric Research Equity Act, or PREA, marketing applications generally must contain data to assess the safety and effectiveness of the biologic product candidate for the claimed indications in all relevant pediatric subpopulations and to support dosing and administration for each pediatric subpopulation for which the product candidate is safe and effective. The FDA may grant deferrals for submission of data or full or partial waivers. Unless otherwise required by regulation, PREA does not apply to any product candidate for an indication for which orphan designation has been granted.
On the basis of the marketing application and accompanying information, including the results of the inspection of the manufacturing facilities, the FDA may issue an approval letter or a complete response letter. An approval letter authorizes commercial marketing of the drug with specific prescribing information for specific indications. A complete response letter generally outlines the deficiencies in the submission and may require substantial additional testing or information for the FDA to reconsider the application. If those deficiencies have been addressed to the FDA's satisfaction in a resubmission of the application, the FDA may issue an approval letter.
If a product candidate receives regulatory approval, the approval may be significantly limited to specific diseases and dosages or the indications for use may otherwise be limited. Further, the FDA may require that certain contraindications, warnings or precautions be included in the product labeling. The FDA may impose restrictions and conditions on product distribution, prescribing or dispensing in the form of a Risk Evaluation and Mitigation Strategy, or REMS, or otherwise limit the scope of any approval. In addition, the FDA may require post-marketing clinical trials designed to further assess a non-biologic drug's safety and effectiveness, or a biologic's safety, purity, and potency, and testing and surveillance programs to monitor the safety of approved products that have been commercialized.
Orphan Drug Designation in the United States
Under the Orphan Drug Act, the FDA may grant orphan drug designation to drugs and biological products intended to treat a "rare disease or condition," which generally is a disease or condition that affects fewer than 200,000 individuals in the United States. Orphan drug designation must be requested before submitting a marketing application or supplement seeking approval for the orphan indication. After the FDA grants orphan drug designation, the common identity of the therapeutic agent and its potential orphan use are publicly disclosed by the FDA.
Orphan drug designation does not—by itself—convey any advantage in, or shorten the duration of, the regulatory review and approval process. If a product that has an orphan drug designation subsequently receives the first FDA approval for that drug or biologic for the indication for which it has been designated, the product is entitled to an orphan exclusivity period in which the FDA may not approve any other applications to market the same drug or biologic for the same indication for seven years.
Exceptions to the seven-year exclusivity period may apply in limited circumstances, such as where the sponsor of a different version of the product is able to demonstrate that its product is clinically superior to the approved orphan drug product. This exclusivity does not prevent a competitor from obtaining approval to market a different product that treats the same disease or condition, or the same product to treat a different disease or condition. The FDA can revoke a product's orphan drug exclusivity under certain circumstances, including when the holder of the approved orphan drug application is unable to assure the availability of sufficient quantities of the drug to meet patient needs. Orphan exclusivity operates independently from other regulatory exclusivities and other protections against generic or biosimilar competition.
A sponsor of a product application that has received an orphan drug designation is also granted tax incentives for clinical research undertaken to support the application. In addition, the FDA will typically coordinate with the sponsor on research study design for an orphan drug and may exercise its discretion to grant marketing approval on the basis of more limited

product safety and efficacy data than would ordinarily be required, based on the limited size of the applicable patient population.
Fast Track Designation
The FDA has a number of expedited review programs for drugs that are intended for the treatment of a serious or life-threatening condition. As one example, under the agency's Fast Track program, the sponsor of a new drug candidate may request the FDA to designate the product for a specific indication as a Fast Track product concurrent with or after the filing of the IND for the product candidate. The FDA must determine if the product candidate qualifies for Fast Track designation within 60 days after receipt of the sponsor's request.
In addition to other benefits, such as the ability to have more frequent interactions with the FDA, the agency may initiate review of sections of a Fast Track product's marketing application before the application is complete. This rolling review is available if the applicant provides and the FDA approves a schedule for the submission of the remaining information and the applicant pays applicable user fees. However, the FDA's review period for a Fast Track application does not begin until the last section of the marketing application is submitted. In addition, the Fast Track designation may be withdrawn by the FDA if the agency believes that the designation is no longer supported by data emerging in the clinical trial process.
Regenerative Medicine Advanced Therapy Designation
The FDA may grant regenerative medicine advanced therapy, or RMAT, designation to regenerative medicine therapies, which may include cell therapies, human gene therapies, therapeutic tissue engineering products, and human cell and tissue products, if certain criteria are met. In particular, a drug may be eligible for RMAT designation if the drug is a regenerative medicine therapy as defined in Section 506(g)(8) of the Federal Food, Drug, and Cosmetic Act; the drug is intended to treat, modify, reverse, or cure a serious or life-threatening disease or condition; and preliminary clinical evidence indicates that the drug has the potential to address unmet medical needs for such disease and condition. The FDA must determine if the product candidate qualifies for RMAT designation within 60 days after receipt of the sponsor's request.
A grant of RMAT designation includes all of the benefits of Fast Track designation, intensive guidance on efficient drug development beginning as early as Phase 1, and organizational commitment involving senior managers. The RMAT designation may be withdrawn by the FDA if the agency believes that the designation is no longer supported by data emerging in the clinical trial process.
Post-approval requirements
Rigorous and extensive FDA regulation of drugs and biologics continues after approval, including requirements governingrelating to recordkeeping, periodic reporting, product sampling and distribution, adverse experiences with the product, cGMP, and advertising and promotion. Changes to the product, manufacturing process, or facility generallyoften require prior FDA approval before being implemented and other types of changes to the approved product, such as adding new indications and additional labeling claims, are also subject to further FDA review and approval. Failure to comply with the applicable requirements may result in administrative, judicial, civil or criminal actions and adverse publicity. These actions may include FDA's refusal to approve or delay in approving pending applications or supplemental applications, withdrawal of approval, clinical hold, suspension or termination of clinical trial, warning or untitled letters, product recalls, product seizures, total or partial suspension of production or distribution, injunctions, fines or other monetary penalties, refusals of government contracts, mandated corrective advertising or communications with healthcare providers, debarment, restitution, disgorgement of profits or other civil or criminal penalties.
Regulatory Exclusivity and Biosimilar Competition in the United States
In 2010, the federal Biologics Price Competition and Innovation Act, or BPCIA, was enacted, creating a statutory pathway for licensure, or approval, of biological products that are biosimilar to, and possibly interchangeable with, reference biological products licensed under the Public Health Service Act.
Under the BPCIA, innovator manufacturers of original biological products are granted 12 years of exclusive use after first licensure before biosimilar versions of such products can be licensed for marketing in the United States. This means that the FDA may not approve an application for a biosimilar product that references data in an innovator's Biologics License Application, or BLA, until 12 years after the date of approval of the reference biological product, with a potential six-month extension of exclusivity if certain pediatric studies are conducted and the results are reported to the FDA. A biosimilar application may be submitted four years after the date of licensure of the reference biological product, but the FDA cannot

approve the application until the full exclusivity period has expired. This 12-year exclusivity period operates independently from other protections that may apply to biosimilar competitors, including patents that are held for those products. Additionally, the BPCIA establishes procedures by which the biosimilar applicant must provide information about its application and product to the reference product sponsor, and by which information about potentially relevant patents is shared and litigation over patents may proceed in advance of approval. The BPCIA also provides a period of exclusivity for the first biosimilar to be determined by the FDA to be interchangeable with the reference product.
Under the Best Pharmaceuticals for Children Act, which was subsequently made applicable to biological products by the BPCIA, the FDA may also issue a Written Request asking a sponsor to conduct pediatric studies related to a particular active moiety; if the sponsor agrees and meets certain requirements, the sponsor may be eligible to receive an additional six months of marketing exclusivity for its drug product containing such active moiety.
Other regulatory exclusivity may be granted to drugs, including, but not limited to, three-year and five-year exclusivity granted to non-biologic drugs under the Drug Price Competition and Patent Term Restoration Act of 1984, also referred to as the Hatch-Waxman Amendments.
Depending upon the timing, duration, and specifics of FDA approval of product candidates, some of a sponsor's United States patents may be eligible for limited patent term extension under the Hatch-Waxman Amendments. The Hatch-Waxman Amendments permit a patent restoration term of up to five years as compensation for patent term lost during product development and the FDA regulatory review process. However, patent term restoration cannot extend the remaining term of a patent beyond a total of 14 years from the product's approval date. The United States Patent and Trademark Office, or USPTO, in consultation with the FDA, reviews and approves the application for any patent term extension or restoration. Only one patent applicable to an approved drug product is eligible for the extension and the application for the extension must be submitted prior to the expiration of the patent.
Foreign regulation of human therapeutics
In addition to regulations in the United States, our subsidiaries, such as PrecigenPGEN and ActoBio, and our collaborators that are focused on the development of human therapeutic products will be subject to a variety of foreign regulations governing clinical trials and commercial sales and distribution of the products enabled by our technologies. Whether or not the developer obtains FDA approval for a product, they must obtain approval by the comparable regulatory authorities of foreign countries or economic areas, such as the European Union, before they may commence clinical trials or market products in those countries or areas. The approval process and requirements governing the conduct of clinical trials, product licensing, pricing and reimbursement vary greatly from place to place, and the time may be longer or shorter than that required for FDA approval.
Regulation of animal based technologiesmicrobes and microbial products
The development, movement and commercialization of animal based products (animal feeds, genetically modified animals) is governed by either technology or product based laws and regulations specific to each country. In the majority of our target

markets, the relevant regulatory pathway for animal based products is distinct from those governing human medicinal products although the risk assessment parameters and agencies with jurisdiction may be consistent. In the United States, the FDA's Center for Veterinary Medicine regulates GE animals as 'animal drugs' as well as animal feed products. The United States Department of Agriculture, or USDA, regulates veterinary vaccines and biologics, and the EPA regulates pesticide products. Regulatory oversight and jurisdiction is based on either the nature of the product (i.e. meets the definition of an animal drug) or product end use. Specific statutes and regulations also define standards and data requirements that Intrexon and our collaborators must satisfy. While regulatory oversight may vary globally, animal based products must undergo regulatory review and approval prior to their movement and commercial introduction internationally. These regulations are designed to demonstrate product efficacy as well as evaluate potential risk to human/ animal health and the environment. For drugs administered to animals, mature regulatory processes are in place and often evaluated by the same authorities as human pharmaceuticals.
In the case of bioengineered animals (i.e. the AAS), the U.S. and Canada have established regulatory processes led by the FDA and Health Canada/ Canadian Food Inspection Agency, or CFIA, respectively, while other countries, such as Brazil and Argentina amongst others, are in the process of developing new regulations under existing authorities for the advancement and regulation of GE animal technologies. In December 2012, the FDA published an environmental assessment, or EA, for AAS along with its Finding of No Significant Impact, or FONSI, in the Federal Register, confirming that an approval of the pending New Animal Drug Application would not have an adverse effect on the environment and opened up a 60 day period for public comment. In February 2013, the FDA extended the period for public comment by an additional 60 days, which expired in April 2013. Prior to the publication of the EA and FONSI, in September 2010, the FDA held a public meeting of its Veterinary Medicine Advisory Committee to review its findings regarding AAS. The conclusion of its panel of experts was that AAS is indistinguishable from other farmed Atlantic salmon, is safe to eat and does not pose a threat to the environment under its conditions of use. Subsequently, the FDA initiated an EA in compliance with its obligations under the National Environment Policy Act, or NEPA, which requires that all federal agencies consider the possible environmental impacts of any action that they authorize. Subsequently, in November 2015, the FDA approved the New Animal Drug Application for the production, sale and consumption of AAS. AquaBounty is subject to on-going post approval responsibilities as detailed in the FDA letter of approval and summarized in the EA dated in November 2015. In the event that AquaBounty seeks to modify or expand its production sites and methods, the company may require further regulatory approvals. In May 2016, Health Canada concluded its review of AAS and approved it for commercial sale in Canada and the Animal Feed Division of the Animal Health Directorate of CFIA, authorized AAS for use in livestock feeds.
Regulation of self-limiting insect technologies
Oxitec has developed a GE self-limiting line of the mosquito Aedes aegypti, theOX513A, as well as other crop pests with the intent of suppressing these insects at the release site(s). While the GE mosquito was historically subject to regulatory review by FDA as a new animal drug, in 2017 jurisdiction was shifted to the EPA. Under the Federal Insecticide, Fungicide, and Rodenticide Act, or FIFRA, the EPA is charged with protecting human health and the environment by ensuring that registered pesticides do not cause unreasonable adverse effects to man or the environment. FIFRA's definition of "pesticide" includes "any substance or mixture of substances intended for preventing, destroying, repelling, or mitigating any pest". Prior to this shift, the FDA published in August 2016 a final EA and FONSI regarding impacts on human health, animal health and the environment of the OX513A GE mosquito based on review of information and evidence related to an investigational trial in Key Haven, Florida. Following the transfer of jurisdiction to the EPA, Oxitec has submitted regulatory dossiers to the EPA necessary for the timely release of the OX513A GE mosquito in Florida and other states. The OX513A GE mosquito has also been approved by Brazil's CTNBio for unrestricted releases throughout the country. Additionally, open field trials of these mosquitoes have been conducted in Brazil, the Cayman Islands, Panama, and Malaysia under relevant permits or approvals. Further approvals will be required for commercial production and use.
Self-limiting GE insects used to control crop pests—instead of disease carrying vectors—are regulated by the USDA. Under the Plant Protection Act, the USDA's Animal and Plant Health Inspection Service, or APHIS, has broad authority to regulate plant pests to protect crops and other plants. Because the objective of Oxitec's crop protection platform is to suppress known plant pests, these technologies are currently treated as subject to USDA's jurisdiction. When an applicant has developed sufficient data to demonstrate that the organism no longer poses a plant pest risk, the applicant can petition APHIS to "deregulate" the article, meaning the GE organism should no longer be considered a regulated article under APHIS regulations. In 2017, APHIS released a final EA and subsequent FONSI supporting a limited environmental release of Oxitec's GE diamondback moth. This conclusion was based on the finding that it would be unlikely for these insects to impact the physical, biological and human health environment. These self-limiting insects will also likely be subject to foreign agriculture GE regulations and authorizing bodies, such as CTNBio and the Ministry of Agriculture in Brazil as well as the Office of the Gene Technology Regulator in Australia.

Regulation of agricultural technology/ food products
The manufacturing, marketing and certain areas of research related to some of the potential food products developed by us and our subsidiaries and collaborators are subject to regulation by federal and state governmental authorities in the United States. As it relates to GE foods and/ or plants, they are subject to regulation by the FDA, USDA, and EPA under the US' Coordinated Framework for the Regulation of Biotechnology. These technologies have been regulated under this framework for over two decades. Similar regulatory approval systems are in place globally as biotech crops have been planted in over 26 countries in 2016. Okanagan's Arctic apple products are subject to such regulations.
The Arctic Apple has undergone significant regulatory review in recent years, and a few varieties have been successfully deregulated and authorized for sale in the United States. In February 2015, the USDA announced its decision to deregulate Okanagan's Golden Delicious apple variety and Granny Smith apple variety, or together the Arctic apples. In reaching its decision, the USDA conducted a final plant pest risk assessment concluding that Arctic apples are unlikely to pose a plant pest risk to agriculture and other plants in the United States. The USDA also completed an EA to comply with the NEPA and concluded that deregulation is not likely to have a significant impact on the human environment. Concurrent with the USDA, Okanagan also engaged in a voluntary food safety assessment consultation with the FDA regarding its Arctic apples. The FDA completed its assessment in March 2015. Based on the information provided by Okanagan and other information available to the agency, the FDA did not articulate any questions about safety or regulatory issues under the FDCA related to the product. As part of bringing the assessment to closure, Okanagan was required to submit summaries of its safety and nutritional assessments for its Arctic apples. In August 2016, the USDA announced its decision to extend a preliminary determination of nonregulated status to Okanagan's Arctic Fuji apple variety.
Comparable authorities to the federal and state governmental authorities in the United States are involved in other countries, such as the European Food Safety Authority in Europe and Health Canada in Canada. In relation to Okanagan, Health Canada announced its decision in March 2015 that it has no objection to the food use of the Arctic apple in Canada. In reaching its decision, Health Canada conducted a comprehensive assessment of the Golden Delicious and Granny Smith varieties according to its Guidelines for the Safety Assessment of Novel Foods. These guidelines are consistent with internationally accepted principles for establishing the safety of foods with novel traits adopted by the Codex Alimentarius Commission. Following this assessment, it was determined that the changes made to the Arctic apple did not pose a greater risk to human health than apples currently available on the Canadian market. In addition, Health Canada also concluded that the Arctic apple would have no impact on allergies and that there are no differences in the nutritional value of the Arctic apple compared to other traditional apple varieties available for consumption.
Energy and chemical regulation
The environmental regulations discussed above also govern the development, manufacture and marketing of energy and chemical products. For example, the use of genetically-modified microorganisms, or GMMs, such as our yeast and methanotroph strains, is subject to laws and regulations in many countries. In the United States, the EPA regulates the commercial use of many GMMs as well as potential products produced from GMMs. Various states within the United States could choose to regulate products made with GMMs as well. While the strain of genetically modifiedgenetically-modified yeast that we use, S. cerevisiae, is eligible for exemption from EPA review because it is generally recognized as safe, we must satisfy certain criteria to achieve this exemption, including, but not limited to, use of compliant containment structures and safety procedures. We expect to encounter GMM regulations in most if not all of the countries in whichthat we may seek to make our products; however, the scope and nature of these regulations will likely vary from country to country. If we cannot meet the applicable requirements in countries in which we intend to produce our products using GMMs, then our business will be adversely affected.
Non-Healthcare Assets and Transition to Our Core Healthcare Business Model
Historically, we focused on programming biological systems for application across a variety of diverse end markets, including health, food, energy, and environment, but we have also consistently evolved the way in which we apply our synthetic biology technologies and the opportunities on which we have focused. In January 2020, we announced that we are increasing our focus on certain of our healthcare opportunities, which reflect our most-advanced platforms, and in connection therewith we divested a number of our non-healthcare assets and changed our name to Precigen, Inc. However, we continue to own our methane bioconversion business and our established bovine genetics company.
Prior to refocusing our business on healthcare, we sought to apply our synthetic biology technologies to a broad universe of markets. In order to operate in such a variety of markets, we built our business around collaborations, such as ECCs and JVs. Over time, we evolved away from entering into new collaborations and considered ways to reorganize our business to best leverage our

technology assets and focus on the opportunities that we believe are of the most immediate promise. Effective January 1, 2018, we transferred substantially all of our gene and cell therapy assets for human health to a newly-formed wholly owned subsidiary, PGEN, and we consolidated therapeutic applications of our proprietary ActoBiotics platform under ActoBio, another wholly owned subsidiary. In May 2019, we announced the alignment of our operations into two units focused on healthcare and bioengineering in order to better deploy resources, realize inherent synergies and position the company for growth with a core focus on healthcare.
In January 2020, we furthered our plans to enhance our focus on the healthcare industry when we sold a number of our bioengineering assets, or the TS Biotechnology Sale, to TS Biotechnology. Randal J. Kirk, who is the former CEO of Precigen and is currently the Executive Chairman and a member of our board of directors, serves as the Senior Managing Director and Chief Executive Officer of Third Security and owns 100 percent of the equity interests of Third Security. The assets divested in the TS Biotechnology Sale included our domain name dna.com and all of our equity interests in (1) Blue Marble AgBio LLC, or Blue Marble AgBio, a Delaware limited liability company, that we formed to hold our agricultural biotechnology assets, (2) ILH Holdings, Inc., or ILH Holdings, a Delaware corporation, which housed our yeast fermentation technology platform for the biologic production of active pharmaceutical ingredients and other fine chemicals, (3) Intrexon Produce Holdings, Inc., or IPHI, a Delaware corporation, which owns Okanagan Specialty Fruits, Inc., or Okanagan Specialty Fruits, the agricultural company developing non-browning apple without the use of any artificial additives, (4) Intrexon UK Holdings Inc., or Intrexon UK Holdings, a Delaware corporation, which owns Oxitec, Ltd., or Oxitec, the developer of an insect-based biological control system, (5) Oragenics, which is developing antibiotics against infectious disease and, in collaboration with ActoBio, treatments for oral mucositis, and (6) SH Parent, Inc., or SH Parent, a Delaware corporation, which held our ownership interests in Surterra Holdings, Inc., or Surterra, a cannabinoid-based wellness company. In addition, in January 2020, in a separate transaction, we sold our interest in EnviroFlight, LLC, or EnviroFlight, to Darling. See "Notes to the Consolidated Financial Statements - Note 3" appearing elsewhere in this Annual Report for a discussion of the Transactions and the discontinued operations.
Remaining Non-Healthcare Businesses
While our primary focus is in healthcare, after the Transactions we continue to have two non-healthcare businesses: our methane bioconversion business, MBP Titan, LLC, or MBP Titan, and our established bovine genetics company, Trans Ova Genetics, L.C., or Trans Ova.
MBP Titan
MBP Titan is our standalone subsidiary comprising our Methane Bioconversion Platform, or MBP, and our associated technologies, personnel, and facilities. Our MBP is designed to turn natural gas into more valuable and usable energy and chemical products through novel, highly engineered bacteria that utilize specific energy feedstocks. This technology can use pipeline grade natural gas, to synthesize commercial end products, such as isobutanol for gasoline blending, 2,3 Butanediol for conversion to synthetic rubber and 1,4 Butanediol for polyester. Traditional methods of feedstock conversion for fuel production and other materials are costly, wasteful and often come with significant environmental impact. The MBP production method has the potential to transform the generation of drop-in fuels, synthetic rubber, plastic material, and animal feed through less resource intensive and more sustainable approaches than conventional methods. In aggregate, the value of such fuel and chemical products and animal feed are significant, representing the potential of billions of dollars in estimated market opportunity.
We are currently assessing the appropriate next steps with respect to the future of our MBP platform, which could include a financing directly into MBP Titan, or other strategic alternatives. As part of this assessment, we are also considering the future of our joint ventures with Intrexon Energy Partners and Intrexon Energy Partners II.
See "Notes to the Consolidated Financial Statements - Note 5" appearing elsewhere in this Annual Report for a discussion of Intrexon Energy Partners and Intrexon Energy Partners II and other significant collaborations between us and our JVs.
Trans Ova
Trans Ova is internationally recognized as a provider of industry-leading bovine reproductive technologies. Trans Ova offers bovine embryo transfer technologies, in addition to other advanced reproductive technologies, including in-vitro fertilization, or IVF, sexed-semen, genetic preservation and cloning. Through extensive research programs and applied science, Trans Ova has developed and implemented new technologies that, we believe, have helped to move the science of bovine genetic improvement forward. We and Trans Ova are evaluating the optimal means to utilize these technology assets and Trans Ova's broad customer base and deep industry knowledge to maximize the value of the business.
As of December 31, 2019, Trans Ova had 229 production employees. Trans Ova's primary domestic production facilities, including approximately 360 acres of land, are located in Sioux Center, Iowa. The land and facilities are primarily used for our embryo

transfer and in vitro fertilization processes, as well as housing livestock used in such processes. As of December 31, 2019, Trans Ova also leased or owned regional production facilities and land in California, Maryland, Missouri, New York, Oklahoma, South Dakota, Texas, and Washington for these purposes.
Competition: Non-Healthcare Assets
Energy Markets
MBP Titan differentiates itself through its use of cellular engineering experience and suite of technologies to develop environmentally-friendly products in the chemical and animal feed industries. While we believe this proprietary platform holds the potential to modernize the existing gas-to-liquids industry by generating important fuels and chemicals at a fraction of the cost of traditional conversion methods, any products MBP Titan develops will still compete with legacy technologies and approaches to fuel production. Many of MBP Titan's competitors in the energy market are significantly larger than MBP Titan and have significantly greater financial, technical and human resource capabilities. Further, MBP Titan is still developing our products and scaling them, while its competitors, who are utilizing more traditional methods, have the benefit of developed processes that are accepted by the market. In addition, there are others, including competitors with better financial, technical, and resources, and more experience, pursuing alternatives fuels as well as companies pursuing technologies based on the conversion of methanotrophs in the energy sector. MBP Titan's ability to compete successfully will depend on its ability to develop and produce products that can be scaled to reach the market in a timely manner and are environmentally superior to and/or are less expensive to produce than other products on the market.
Animal Genetics Market
We believe Trans Ova's focus on continuous research and use of applied science allow Trans Ova to develop and implement new technologies that will help move the science of bovine genetic improvement forward rapidly and differentiate it from its competitors. However, there are a number of companies that compete with Trans Ova, including traditional breeding companies and other companies that use advanced reproductive technologies. These competitors may be larger and have better funding than Trans Ova. In addition, Trans Ova's competitors may be companies that have a predominant focus on developing the newest technologies in animal breeding whereas Trans Ova is one part of our overall strategy. Finally, Trans Ova's competitors that operate using more traditional breeding techniques may enjoy greater market acceptance over Trans Ova, and other companies, that utilize genetic manipulation, semen sorting and cloning techniques.
Energy and Chemical Regulation
The environmental regulations discussed above also govern the development, manufacture and marketing of energy and chemical products. Chemical products produced by us and our collaborators may be subject to government regulations in our target markets. In the United States, the EPA administers the requirements of the TSCA, which regulates the commercial registration, distribution and use of many chemicals. Before an entity can manufacture or distribute significant volumes of a chemical, it needs to determine whether that chemical is listed in the TSCA inventory. If the substance is listed, then manufacture or distribution can commence immediately. If not, then in most cases a "Chemical Abstracts Service" number registration and pre-manufacture notice must be filed with the EPA, which has 90 days to review the filing. A similar requirement exists in Europe under the REACH regulation. Additional regulations may apply to specific subsets of chemicals such as, for example, fuel products that are subject to regulation by various government agencies including, in the United States, the EPA and the California Air Resources Board.
Our Historic Operations
Until the closing of the Transactions, we operated under a strategy that allowed us to focus on our core expertise in synthetic biology while developing many different commercial product candidates via collaborations in a broad range of industries or end markets. We built our business primarily around the formation of ECCs, as well as certain research collaborations. Over time, our strategy has evolved away from ECC-type collaborations to relationships and structures that provided us with more control and ownership over the development process and commercialization path. In these new relationships and structures, we had more of the responsibility to fund the projects and execute on product candidate development. Eventually, we aligned our businesses into two units comprising our healthcare and bioengineering assets, a number of which we sold in early 2020. Some of the key businesses that we divested in connection with our focus on healthcare, include the following operating subsidiaries and JVs:
Okanagan Specialty Fruits, Inc.
Okanagan is the pioneering agricultural company behind the world's first non-browning apple without the use of any artificial

additives. Under our control, we worked with Okanagan to scale up its commercial supplies of non-browning apples and to develop new commercial tree fruit varieties intended to provide benefits to the entire supply chain, from growers to consumers. In 2020, we sold Okanagan in the TS Biotechnology Sale.
AquaBounty Technologies, Inc.
AquaBounty Technologies, Inc., or AquaBounty, is a company focused on improving productivity in commercial aquaculture, including the development of the AquAdvantage Salmon, an Atlantic salmon that has been genetically enhanced to reach market size in less time than conventionally farmed Atlantic salmon and approved by the FDA. Until October 2019, AquaBounty was a partially owned subsidiary of ours. In October 2019, we sold our ownership interests held in AquaBounty to an affiliate of Third Security.
EnviroFlight
In February 2016, we entered into a series of transactions involving a predecessor to EnviroFlight, or Old EnviroFlight, Darling, and a newly formed venture between us and Darling, EnviroFlight. This series of integrated transactions resulted in us acquiring substantially all of the assets of Old EnviroFlight and contemporaneously contributing all of these assets, with the exception of certain developed technology, and $3 million of cash to EnviroFlight in exchange for a non-controlling, 50 percent membership interest in EnviroFlight. Our contributions to EnviroFlight included an exclusive license to the developed technology that was retained by us. Darling received the remaining 50 percent membership interest in EnviroFlight as consideration for terminating rights previously held in the developed technology with Old EnviroFlight. EnviroFlight was formed to generate high nutrition, low environmental impact animal and fish feed, as well as fertilizer products, from black soldier fly larvae. On January 2, 2020, we sold all of our interests in EnviroFlight to Darling.
Oxitec Limited
Oxitec is a pioneering company in biological insect control solutions. Oxitec is developing products that use genetic engineering to control insect pests that spread disease and damage crops. Among the applications of its platform, which uses advanced genetics and molecular biology, Oxitec has developed innovative solutions for controlling Aedes aegypti, a mosquito that is a known vector for the transmission of infectious disease including dengue fever, chikungunya, and Zika virus and, in conjunction with its collaborators, is pursuing solutions that target certain agricultural crop pests. Oxitec is pursuing regulatory and commercial approvals for its insect solutions in a number of countries, including the United States. In 2020, we sold Oxitec in the TS Biotechnology Sale.
Reportable Segments
Through March 31, 2019, we operated as a single operating segment. In April 2019, in our efforts to better deploy resources and realign our business, our chief operating decision maker, or CODM, began assessing the operating performance of and allocating our resources for several operating segments using Segment Adjusted EBITDA. As of December 31, 2019, taking into account the effect of the Transactions, our reportable segments are (i) PGEN Therapeutics, (ii) ActoBio, (iii) MBP Titan, and (iv) Trans Ova. These identified reportable segments met the quantitative thresholds to be reported separately for the year ended December 31, 2019. See "Notes to the Consolidated Financial Statements - Note 20" appearing elsewhere in this Annual Report for a discussion of our reportable segments and Segment Adjusted EBITDA.
Research and developmentDevelopment
As of December 31, 2017,2019, we had 481366 research and development employees. We incurred expenses of $143.2$101.9 million, $112.1$366.2 million and $147.5$109.2 million in 2017, 2016,2019, 2018, and 2015,2017, respectively, on research and development activities.activities for continuing operations. We anticipate that our research and development expenditures willcould increase substantially as we investigate other applications forfocus on the healthcare industry and further advance our synthetic biotechnologies,internally developed programs, including expending internal resources on unpartnered programs. Ourthose we reacquired from former collaborators in 2018. As of December 31, 2019, our primary domestic research and development operations arewere located in laboratory facilities in Germantown, Maryland; South San Francisco, California; Davis, California; and San Diego,Davis, California; and our primary international research and development operations arewere located in laboratory facilities in Budapest, Hungary; Ghent, Belgium; Campinas, Brazil; and Oxford, England. In connection with the Transactions, we no longer have research and development facilities in Davis, California; Budapest, Hungary; Campinas, Brazil; and Oxford, England and have reduced our research and development employees to 227 as of February 1, 2020.

Financial informationInformation
Collaboration revenues, product revenues, service revenues and other revenues and operating income for each of the last three fiscal years, along with assets as of December 31, 20172019 and 2016,2018, are set forth in the consolidated financial statements, which are included in Item 8 of this Annual Report. Financial information about geographic areas is set forth in "Notes to the Consolidated Financial Statements - Note 2 to our consolidated financial statements20" appearing elsewhere in this Annual Report.
Production
As of December 31, 2017, we had 230 production employees. Our primary domestic production facilities, including approximately 380 acres of land, are located in Sioux Center, Iowa. The land and facilities are primarily used for our embryo transfer and in vitro fertilization processes, as well as housing livestock used in such processes. We also lease or own regional production facilities and land in California, Maryland, Missouri, New York, Oklahoma, South Dakota, Texas, and Washington for these purposes. Additionally, we have commenced initial scale up of commercial production of our non-browning apples in Washington, our AAS salmon in Canada, and our GE mosquitoes in Piracicaba, Brazil, in anticipation of generating future revenues from each of these product lines.
Employees
As of December 31, 2017,2019, we had 906770 full-time and 10087 part-time employees. As of February 1, 2020, after the closing of the Transactions, we had 601 full-time employees and 79 part-time employees, of which 210 full-time and 18 part-time employees supported healthcare and 391 full-time and 61 part-time employees supported our remaining non-healthcare assets. We consider our employee relations to be good. As we continue to streamline our operations and focus on healthcare, we believe the ratio of healthcare and non-healthcare employees will continue to change, with an expected decrease in the number of employees dedicated to supporting our remaining non-healthcare assets.
Corporate information
We are a Virginia corporation formed in 1998 and our principal executive offices are located at 20374 Seneca Meadows Parkway, Germantown, MD 20876, and our telephone number is (301) 556-9900.
Additional Informationinformation
Our website is www.dna.comwww.precigen.com. The information on, or that can be accessed through, our website does not constitute part of, and is not deemed to be incorporated by reference into, this Annual Report. We post regulatory filings on this website as soon as reasonably practicable after they are electronically filed with or furnished to the SEC. These filings include annual reports on Form 10-K,10-K; quarterly reports on Form 10-Q,10-Q; current reports on Form 8-K,8-K; Section 16 reports on Forms 3, 4, and 5,5; and any amendments to those reports filed with or furnished to the SEC. We also post our press releases on our website. Access to these filings or any of our press releases on our website is available free of charge. Copies are also available, without charge, from Intrexon CorporationPrecigen Investor Relations, 20374 Seneca Meadows Parkway, Germantown, Maryland 20876. Reports filed with the SEC may be viewed at www.sec.gov or obtained at the SEC Public Reference Room at 100 F Street, NE, Washington, D.C. 20549. Information regarding the operation of the Public Reference Room may be obtained by calling the SEC at 1-800-SEC-0330. We also post our press releases on our website. Information on our website is not deemed to be incorporated by reference into this Annual Report..
In addition, our Corporate Governance Guidelines, Code of Business Conduct and Ethics, and charters for the Audit Committee, the Compensation Committee and the Nominating and Governance Committee are available free of charge to shareholders and the public through the "Corporate Governance" section of our website. Printed copies of the foregoing are available to any shareholder upon written request to our Communications Department at the address set forth on the cover of this Annual Report or may be requested through our website, www.dna.com.www.precigen.com.

Item 1A.Risk Factors
Investing in our common stock involves a high degree of risk. You should carefully consider the risks described below, together with the other information contained in this Annual Report, including our consolidated financial statements and the related notes appearing at the end of this Annual Report, before making your decision to invest in shares of our common stock. We cannot assure you that any of the events discussed in the risk factors below will not occur. These risks could have a material and adverse impact on our business, results of operations, financial condition, or prospects. If that were to happen, the trading price of our common stock could decline, and you could lose all or part of your investment.
This Annual Report also contains forward-looking statements that involve risks and uncertainties. Our actual results could differ materially from those anticipated in these forward-looking statements as a result of certain factors, including the risks faced by us described below and elsewhere in this Annual Report. See "Special Note Regarding Forward-Looking Statements" for information relating to these forward-looking statements.
Risks relatedRelated to our financial position, operating resultsFinancial Position and need for additional capitalCapital Needs
We have a history of net losses, and we may not achieve or maintain profitability.
We have incurred net losses attributable to Intrexon since our inception, including net losses attributable to IntrexonPrecigen of $322.3 million, $509.3 million and $117.0 million $186.6 millionin 2019, 2018 and $84.5 million in 2017, 2016 and 2015, respectively. As of December 31, 2017,2019, we had an accumulated deficit of $847.8 million.$1.7 billion. We may incur losses and negative cash flow from operating activities for the foreseeable future. To date,Historically, we have derived a significant portion of our revenues from ECCs and license agreements. With the evolutionagreements, but revenues of these types will continue to

decrease as a result of our evolving business strategy,model. We no longer expect to receive reimbursement of costs incurred by us for new research and development services other than through existing ECCs, nor will we anticipate greater levels ofrecognize deferred revenues from products and services as we successfully scale up and commercialize new products. We may also realize significant future revenues from strategic transactions involving our subsidiaries or JVs. If our existing collaborators terminate their ECCs, license agreements or JVsassociated with us or we are unable to commercialize products through our subsidiaries and JVs or enter into strategic transactions, our revenues could be adversely affected.previously terminated collaborations. In addition, certain of our collaborations and license agreements provide for milestone payments, future royalties, and other forms of contingent consideration, the payment of which are uncertain as they are dependent on our collaborators' abilities and willingness to successfully develop and commercialize products. Moreover, manyproduct candidates.
As we focus on our healthcare business, we anticipate that our expenses will increase substantially if, and as we, continue to advance the preclinical and clinical development of the products being commercialized by us are in the early stages of developmentour existing product candidates and our research programs, and there is a significant risk that our product candidates will fail to demonstrate adequate efficacy or preliminary stages of sales.an acceptable safety profile, obtain regulatory approval, or become commercially viable. We expect a significant period of time could pass before commercialization of our various product candidates or before the achievement of contractual milestones and the realization of royalties on productsproduct candidates commercialized under our collaborations or before commercialization of our various products and revenues is sufficient to achieve profitability. As a result, our expenses may exceed revenues for the foreseeable future, and we may not achieve profitability. If we fail to achieve profitability, or if the time required to achieve profitability is longer than we anticipate, we may not be able to continue our business. Even if we do achieve profitability, we may not be able to sustain or increase profitability on a quarterly or annual basis.
We maywill need substantial additional capital in the future in order to fund our business.
Our operations have consumed substantial amounts of cash since our inception. We expect to continue to spend substantial amounts to continue the preclinical and clinical development of our current and future programs. We are and will continue to be dependent on public or private financings, new collaborations or licensing arrangements with strategic partners, or additional debt financing sources to fund continuing operations. We expect our future capital requirements will be substantial particularly as we continue to develop our business and expand our synthetic biology technology platform and for capital investment needed to scale up our commercial operations. Although we believe that our existing cash and cash equivalents and short-term and long-term investments and cash expected to be received from our current collaborators and for sales of products and services provided by our consolidated subsidiaries will enable us to fund our operating expenses and capital expenditure requirements for at least the next 12 months, we may need additional capital if our current plans and assumptions change. Our need for additional capital will depend on many factors, including:
progress in our research and development programs, as well as the commercial successmagnitude of these programs;
the timing of regulatory approval of products being developed byof our subsidiaries, JVscollaborations and unpartnered programs;operations;
the commercial successtiming, receipt, and amount of our ECCs and license agreements;
whether we are successful in obtainingany payments received in connection with strategic transactions;
whether we are successful in obtainingthe timing, receipt, and amount of upfront, milestone, and other payments, if any, from present and future collaborators, if any;
the timing, receipt, and amount of sales and royalties, if any, from our collaborators and licensees;
whether we can enter into additional ECCs, license agreements or JVs;
the progress and scope of the collaborative and independent research and development projects performed by us and our collaborators and licensees;

product candidates;
the timing and capital requirements to scale up our various productsproduct candidates and services offerings;service offerings and customer acceptance thereof;
our ability to maintain and establish additional collaborative arrangements and/or new strategic initiatives;
the effect of any acquisitions of other businesses or technologies that we may make inresources, time, and cost required for the future;
whether we decide to develop internal development or manufacturing capabilities;
thepreparation, filing, prosecution, maintenance, and enforcement of our intellectual property;property portfolio;
investments we may make in currentstrategic mergers and future collaborators,acquisitions, if any, including JVs;
our abilityboth the upfront acquisition cost as well as the cost to integrate, maintain, or improveand expand the volume and pricing of our current product offerings and to develop new offerings, including those which may incorporate new technologies;strategic target; and
the costs associated with legal activities, including litigation, arising in the course of our business activities and our ability to prevail in any such legal activities.
In December 2017, we entered into an agreement with the R.J. Kirk Declaration of Trust, an entity affiliated with Randal J. Kirk, pursuant to which the R.J. Kirk Declaration of Trust purchased 1,207,980 shares of our common stock in a private placement, for aggregate gross proceeds of $13.7 million. In January 2018, we completed an underwritten public offering of our shares providing us net proceeds of $82.2 million. In October 2017, we entered into a Preferred Stock Equity Facility Agreement with Kapital Joe, LLC, or Kapital Joe, an entity affiliated with Mr. Kirk, pursuant to which we may, at our sole and exclusive option, issue and sell to Kapital Joe, up to $100 million of our Series A Redeemable Preferred Stock, or Series A Preferred Stock. We are currently party to an "at-the-market" sales agreement with Cantor Fitzgerald & Co., or Cantor, under which we may offer and sell from time to time our common stock with aggregate proceeds of up to $200 million through Cantor as our sales agent. To date, no offerings have occurred under this agreement.disputes.
If future financings involve the issuance of equity securities, our existing shareholders would suffer further dilution. If we raise additional debt financing, we may be subject to restrictive covenants that limit our ability to conduct our business. We may not be able to raise sufficient additional funds on terms that are favorable to us, if at all. If we fail to raise sufficient funds and continue to incur losses, our ability to fund our operations, take advantage of strategic opportunities, develop productsproduct candidates or technologies, or otherwise respond to competitive pressures could be significantly limited. If this happens, we may be forced to delay or terminate research or development programs or the commercialization of productsproduct candidates resulting from our technologies, curtail or cease operations or obtain funds through strategic transactions ECCs, JVs or other collaborative and licensing arrangements that may require us to relinquish commercial rights, or grant licenses on terms that are not

favorable to us. If adequate funds are not available, we will not be able to successfully execute our business plan or continue our business.
Our quarterlyServicing our debt requires a significant amount of cash, and annual operating results may fluctuate in the future. As a result, we may failnot have sufficient cash flows from our business to meet or exceed the expectations of research analysts or investors, which could causepay our stock price to decline.substantial debt.
Our ability to make scheduled payments of the principal of, to pay interest on, or to refinance our indebtedness, including the 3.50 percent convertible senior notes due 2023, or Convertible Notes, issued in July 2018, depends on our future performance, which is subject to economic, financial, conditioncompetitive and operating results have varied significantly in the past andother factors beyond our control. Our business may continue to fluctuatenot generate cash flows from quarter to quarter and year to yearoperations in the future sufficient to service our debt and make necessary capital expenditures. If we are unable to generate such cash flows, we may be required to adopt one or more alternatives, such as selling assets, restructuring debt or obtaining additional equity capital on terms that may be onerous or highly dilutive. Our ability to refinance our indebtedness will depend on the capital markets and our financial condition at such time. We may not be able to engage in any of these activities or engage in these activities on desirable terms, which could result in a default on our debt obligations.
The Convertible Notes are our exclusive obligations and are not guaranteed by any of our operating subsidiaries. We believe that a substantial portion of our intrinsic value is represented by assets that are held by our subsidiaries. Accordingly, our ability to service our debt, including the Convertible Notes, depends on the results of operations of our subsidiaries and upon the ability of such subsidiaries to provide us with cash, whether in the form of dividends, loans, or otherwise, to pay amounts due on our obligations, including the Convertible Notes. Our subsidiaries are separate and distinct legal entities and have no obligation, contingent or otherwise, to make payments on the Convertible Notes or to make any funds available for that purpose. In addition, dividends, loans or other distributions to us from such subsidiaries may be subject to contractual and other restrictions and are subject to other business considerations.
Despite our current debt levels, we may still incur substantially more debt or take other actions that would intensify the risks discussed above.
Despite our current consolidated debt levels, we and our subsidiaries may incur substantial additional debt in the future, subject to the restrictions contained in our debt instruments, some of which may be secured debt. We are not restricted under the terms of the indenture governing the Convertible Notes from incurring additional debt, securing existing or future debt, recapitalizing our debt or taking a varietynumber of other actions that are not limited by the terms of the indenture governing the Convertible Notes that could have the effect of diminishing our ability to make payments on the Convertible Notes when due.
Risks Related to the Discovery and Development of our Product Candidates
Our business is dependent on our ability to advance our current and future product candidates through clinical trials, obtain marketing approval, and ultimately commercialize them.
We are early in our development efforts. We initiated our first clinical trial for our lead programs, PRGN-3005 in April 2019, PRGN-3006 in May 2019, and AG019 in October 2018, and currently have a pipeline of preclinical programs. Our ability to generate product revenues, which we do not expect will occur for several years, if ever, will depend heavily on the successful development and eventual commercialization of some or all of these product candidates, and any future product candidates we develop, which may never occur. Our current and future product candidates will require additional preclinical or clinical development, management of clinical, preclinical and manufacturing activities, marketing approval in the United States and other jurisdictions, demonstration of effectiveness to pricing and reimbursement authorities, sufficient cGMP manufacturing supply for both preclinical and clinical development and commercial production, building of a commercial organization and substantial investment, and significant marketing efforts before we generate any revenues from product sales.
The clinical and commercial success of our current and future product candidates will depend on several factors, including the following:
sufficiency of our financial and other resources to complete the necessary preclinical studies and clinical trials;
timely and successful completion of preclinical studies and our clinical trials;
acceptance of INDs for future product candidates;
successful enrollment in and completion of clinical trials;
successful data from our clinical program that supports an acceptable risk-benefit profile of our product candidates in

the intended patient populations;
our ability to consistently manufacture our product candidates on a timely basis or to establish agreements with third-party manufacturers;
whether we are required by the FDA or comparable foreign regulatory authorities to conduct additional clinical trials or other studies beyond those planned or anticipated to support approval of our product candidates;
acceptance of our proposed indications and the primary endpoint assessments evaluated in the clinical trials of our product candidates by the FDA and comparable foreign regulatory authorities;
receipt and maintenance of timely marketing approvals from applicable regulatory authorities;
the successful launch of commercial sales of our product candidates, if approved;
the prevalence, duration and severity of potential side effects or other safety issues experienced with our product candidates, if approved;
entry into collaborations to further the development of our product candidates;
our ability to obtain and maintain patent and other intellectual property protection or regulatory exclusivity for our product candidates;
acceptance of the benefits and uses of our product candidates, if approved, by patients, the medical community, and third-party payors;
maintenance of a continued acceptable safety, tolerability and efficacy profile of the product candidates following approval;
our compliance with any post-approval requirements imposed on our products, such as postmarketing studies, a REMS, or additional requirements that might limit the promotion, advertising, distribution or sales of our products or make the products cost prohibitive;
our ability to compete effectively with other therapies; and
our ability to obtain and maintain healthcare coverage and adequate reimbursement from third-party payors.
These factors, many of which are beyond our control. Factors relatingcontrol, could cause us to experience significant delays or an inability to obtain regulatory approvals or commercialize our current or future product candidates, and could otherwise materially harm our business. Successful completion of preclinical studies and clinical trials does not mean that any of our current or future product candidates will receive regulatory approval. Even if regulatory approvals are obtained, we could experience significant delays or an inability to successfully commercialize our current and any future product candidates, which would materially harm our business. If we are not able to generate sufficient revenue through the sale of any current or future product candidate, we may not be able to continue our business operations or achieve profitability.
The regulatory approval processes of the FDA and comparable foreign authorities are lengthy, time-consuming, and inherently unpredictable, and if we are ultimately unable to obtain regulatory approval for our product candidates, our business will be materially harmed.
The time required to obtain approval by the FDA and comparable foreign authorities is unpredictable but typically takes many years following the commencement of clinical trials and depends upon numerous factors, including the substantial discretion of the regulatory authorities. There can be no assurance that we will not experience problems or delays in developing new product candidates and that such problems or delays will not cause unanticipated costs, or that any such development problems can be solved. We also may contributeexperience unanticipated problems or delays in expanding our manufacturing capacity, which may delay or prevent the completion of clinical trials and the commercializing of product candidates on a timely or profitable basis, if at all. For example, we, a collaborator, or another group may uncover a previously unknown risk with any of our product candidates, which may prolong the period of observation required for obtaining regulatory approval, may necessitate additional clinical testing, or may otherwise result in a change in the requirements for approval of any of our product candidates.

In addition, the clinical trial requirements of the FDA, European Medicines Agency, or EMA, and other regulatory authorities and the criteria these regulators use when evaluating product candidates vary substantially according to the type, complexity, novelty, and intended use and market of such product candidates. The regulatory approval process for novel product candidates such as ours can be more expensive and take longer than for other, better known, or more extensively studied product candidates. Even if we are successful in developing product candidates, it is difficult to determine how long it will take or how much it will cost to obtain regulatory approvals in either the United States or through foreign agencies or how long it will take to commercialize these fluctuations includeproduct candidates.
Regulatory requirements governing gene and cell therapy products have changed frequently and may continue to change in the followingfuture. For example, the FDA has established the Office of Tissues and Advanced Therapies and the Division of Cellular and Gene Therapies within the Center for Biologics Evaluation and Research, or CBER, to consolidate the review of gene therapy and related products and has established the Cellular, Tissue and Gene Therapies Advisory Committee to advise CBER in its marketing application review process.
We may be unable to obtain FDA approval of our product candidates under applicable regulatory requirements. The denial or delay of any such approval would prevent or delay commercialization of our product candidates and adversely impact our potential to generate revenue, our business, and our results of operations.
To gain approval to market our product candidates in the United States, we must provide the FDA with clinical data that adequately demonstrate the safety, purity, and potency, including efficacy, of the product candidate for the proposed indication or indications in a BLA submission. Product development is a long, expensive, and uncertain process, and delay or failure can occur at any stage of any of our clinical development programs.
The field of gene therapy is still early in development and remains predominantly experimental. The FDA first approved a gene therapy for use in humans in 2017, and to date has only approved a limited number. Clinical trials with gene therapies have encountered a multitude of significant technical problems in the past, including unintended integration with host DNA leading to serious adverse events, poor levels of protein expression, transient protein expression, viral overload, immune reactions to either viral capsids utilized to deliver DNA, DNA itself, proteins expressed or cells transfected with DNA. There can be no assurance that our development efforts will be timely or successful, that we or they will receive the regulatory approvals necessary to initiate clinical trials, where applicable, or that we will ever be able to successfully commercialize a product candidate enabled by our technologies. To the extent that we utilize viral constructs or other systems to deliver gene therapies and the same or similar delivery systems demonstrate unanticipated and/or unacceptable side effects in preclinical or clinical trials conducted by ourselves or others, we may be forced to, or elect to, discontinue development of such product candidates.
Additionally, we are pursuing the development and commercialization of adoptive cell therapies based on CAR T-cell therapies targeting a variety of cancer malignancies. Because this is a newer approach to cancer immunotherapy and cancer treatment generally, developing and commercializing such product candidates subjects us to a number of challenges, including:
developing and deploying consistent and reliable processes for engineering a patient's T-cells ex vivo and infusing the engineered T-cells back into the patient;
possibly conditioning patients with chemotherapy in conjunction with delivering each of the potential product candidates, which may increase the risk of adverse side effects of the potential products;
educating medical personnel regarding the potential side effect profile of each of the potential products, such as the potential adverse side effects related to cytokine release;
developing processes for the safe administration of these potential products, including long-term follow-up for all patients who receive the potential products;
sourcing additional clinical and, if approved, commercial supplies for the materials used to manufacture and process the potential products;
developing a manufacturing process and distribution network with a cost of goods that allows for an attractive return on investment;
establishing sales and marketing capabilities after obtaining any regulatory approval required to gain market access and acceptance;

developing therapies for types of cancers beyond those addressed by the current potential products;
not infringing the intellectual property rights, in particular, the patent rights, of third parties, including competitors developing alternative CAR T-cell therapies; and
avoiding any applicable regulatory barriers to market, such as data and marketing exclusivities held by third parties, including competitors with approved CAR T-cell therapies.
We cannot be sure that T-cell immunotherapy technologies that we may develop will yield satisfactory products that are safe and effective, scalable, or profitable.
Clinical development involves a lengthy and expensive process with uncertain outcomes. We may incur additional costs and experience delays in developing and commercializing or be unable to develop or commercialize our current and future product candidates.
Clinical development involves a lengthy and expensive process with uncertain outcomes. Results from preclinical studies or previous clinical trials are not necessarily predictive of future clinical trial results, and interim results of a clinical trial are not necessarily indicative of final results. Our product candidates may fail to show the desired results in clinical development despite demonstrating positive results in preclinical studies or having successfully advanced through initial clinical trials.
There is a high failure rate for drugs and biologics proceeding through clinical trials and failure may occur at any stage due to a multitude of factors both within and outside our control. Many companies in the pharmaceutical and biotechnology industries have suffered significant setbacks in late-stage clinical trials even after achieving promising results in preclinical testing and earlier-stage clinical trials. Data obtained from preclinical and clinical activities are subject to varying interpretations, which may delay, limit, or prevent regulatory approval. In addition, we may experience regulatory delays or rejections as a result of many factors, including changes in regulatory policy during the period of product candidate development. Any such delays could materially and adversely affect our business, financial condition, results of operations and prospects. If clinical trials result in negative or inconclusive results, we may decide, or regulators may require us, to discontinue trials of the product candidates or conduct additional clinical trials or preclinical studies.
As an organization, we have limited experience designing and implementing clinical trials and we have never conducted pivotal clinical trials. Failure to adequately design a trial, or incorrect assumptions about the design of the trial, could adversely affect our ability to initiate the trial, enroll patients, complete the trial, or obtain regulatory approval on the basis of the trial results, as well as lead to increased or unexpected costs and delayed timelines.
The design and implementation of clinical trials is a complex process. We have limited experience designing and implementing clinical trials, and we may not successfully or cost-effectively design and implement clinical trials that achieve our desired clinical endpoints efficiently, or at all. A clinical trial that is not well designed may delay or even prevent initiation of the trial, can lead to increased difficulty in enrolling patients, may make it more difficult to obtain regulatory approval for the product candidate on the basis of the study results, or, even if a product candidate is approved, could make it more difficult to commercialize the product successfully or obtain reimbursement from third-party payors. Additionally, a trial that is not well-designed could be inefficient or more expensive than it otherwise would have been, or we may incorrectly estimate the costs to implement the clinical trial, which could lead to a shortfall in funding.
We may find it difficult to enroll patients in clinical trials, which could delay or prevent us from proceeding with clinical trials.
Identifying and qualifying patients to participate in clinical trials of our product candidates is critical to success. The timing of clinical trials depends on the ability to recruit patients to participate as well as completion of required follow-up periods. If patients are unwilling to participate in our clinical studies for any number of reasons, such as because of negative publicity from adverse events related to the biotechnology or gene therapy fields, the timeline for recruiting patients, conducting clinical trials and obtaining regulatory approval may be delayed. These delays could result in increased costs, delays in advancing product candidates, or termination of the clinical trials altogether.
We may be required to suspend, repeat, or terminate our clinical trials if they are not conducted in accordance with regulatory requirements, or the trials are not well designed.
Clinical trials must be conducted in accordance with the FDA's current good clinical practices requirements or analogous requirements of applicable foreign regulatory authorities. Clinical trials are subject to oversight by the FDA, other foreign

governmental agencies and IRBs, or ethical committees at the study sites where the clinical trials are conducted. In addition, clinical trials must be conducted with product candidates manufactured in accordance with applicable cGMP. Clinical trials may be suspended by the FDA, other foreign regulatory authorities, us, or by an IRB or ethics committee with respect to a particular clinical trial site, for various reasons, including:
deficiencies in the conduct of the clinical trials, including failure to conduct the clinical trial in accordance with regulatory requirements or study protocols;
deficiencies in the clinical trial operations or trial sites;
unforeseen adverse side effects or the emergence of undue risks to study subjects;
deficiencies in the trial design necessary to demonstrate efficacy;
the product candidate may not appear to offer benefits over current therapies; or
the quality or stability of the product candidate may fall below acceptable standards.
Cell and gene therapies are novel, complex, and difficult to manufacture.
The manufacturing processes that we use to produce our product candidates for human therapeutics are complex, novel and have not been validated for commercial use. Several factors described elsewherecould cause production interruptions, including equipment malfunctions, facility contamination, raw material shortages or contamination, natural disasters, disruption in this Annual Report:utility services, human error, or disruptions in the operations of our suppliers. Our synthetic biology product candidates require processing steps that are more complex than those required for most chemical pharmaceuticals. Moreover, unlike chemical pharmaceuticals, the physical and chemical properties of a biologic often cannot be fully characterized. As a result, assays of the finished product may not be sufficient to ensure that the product will perform in the intended manner. Accordingly, it is necessary to employ multiple steps to control our manufacturing process to assure that the product candidate is made strictly and consistently in compliance with the process. Problems with the manufacturing process, even minor deviations from the normal process, could result in product defects or manufacturing failures that result in lot failures, product recalls, product liability claims, or insufficient inventory. We may encounter problems achieving adequate quantities and quality of clinical-grade materials that meet FDA, EMA, or other applicable standards or specifications with consistent and acceptable production yields and costs.
Interim and preliminary results from our clinical trials that we announce or publish from time to time may change as more patient data become available and are subject to audit, validation, and verification procedures that could result in material changes in the final data.
From time to time, we may publish interim data, including interim top-line results or preliminary results from our clinical trials. Interim data and results from our clinical trials are subject to the risk that one or more of the clinical outcomes may materially change as patient enrollment continues and more patient data become available. Preliminary or top-line results also remain subject to audit, validation, and verification procedures that may result in the final data being materially different from the interim and preliminary data we previously published. As a result, interim and preliminary data may not be predictive of final results and should be viewed with caution until the final data are available. Differences between preliminary or interim data and final data could significantly harm our business prospects and may cause the trading price of our common stock to fluctuate significantly.
Our product candidates may cause undesirable side effects or have other propertiesthat could halt their clinical development, delay or prevent their regulatory approval, limit their commercial potential, or result in significant negative consequences.
There have been several significant adverse side effects in gene therapy treatments in the past, including reported cases of leukemia and death seen in other trials. While new approaches have been developed to reduce these side effects, gene therapy and synthetic biology therapy in general is still a relatively new approach to disease treatment and additional adverse side effects could develop. There also is the potential risk of delayed adverse events following exposure to these product candidates due to persistent biologic activity of the genetic material or other components of products used to carry the genetic material.
Other possible adverse side effects that could occur with treatment using cell and gene therapy products include an immunologic reaction early after administration that, while not necessarily adverse to the patient's health, could substantially limit the effectiveness of the treatment. In previous clinical trials involving adeno-associated virus, vectors for gene therapy,

some subjects experienced the development of a T-cell response, whereby after the vector is within the target cell, the cellular immune response system triggers the removal of transduced cells by activated T-cells. If a similar effect occurs with our product candidates, we may decide or be required to halt or delay further clinical development of our product candidates.
Additionally, if any of our product candidates receive marketing approval, the FDA could require us to adopt a REMS to ensure that the benefits outweigh its risks, which may include, among other things, a medication guide outlining the risks of the product for distribution to patients and a communication plan to healthcare practitioners. Such requirements could prevent us from achieving or maintaining market acceptance of our product candidates and could significantly harm our business, prospects, financial condition, and results of operations.
Even if we complete the necessary clinical trials, we cannot predict when, or if, we will obtain regulatory approval to commercialize a product candidate and the approval may be for a more narrow indication than we seek.
We cannot commercialize a product candidate until the appropriate regulatory authorities have reviewed and approved the product candidate. Even where product candidates meet their endpoints in clinical trials, the regulatory authorities may approve a product candidate for more limited indications than requested or they may impose significant limitations in the form of narrow indications, warnings or a REMS. These regulatory authorities may require precautions or contra-indications with respect to conditions of use or they may grant approval subject to the performance of costly post-marketing clinical trials. In addition, regulatory authorities may not approve the labeling claims that are necessary or desirable for the successful commercialization of our product candidates. Any of the foregoing scenarios could materially harm the commercial prospects for our product candidates and materially and adversely affect our business, financial condition, results of operations, and prospects.
We have chosen to prioritize development of certain of our product candidates, including PRGN-3005 and PRGN-3006. We may expend our limited resources on product candidates or indications that do not yield a successful product and fail to capitalize on other opportunities for which there may be a greater likelihood of success or may be more profitable.
Because we have limited resources, we are required to strategically prioritize our application of resources to particular development efforts. Any resources we expend on one or more of these efforts could be at the expense of other potentially profitable opportunities. If we focus our efforts and resources on one or more of these opportunities or markets and they do not lead to commercially viable products, our revenues, financial condition, and results of operations could be adversely affected.
Risks Related to the Commercialization of Product Candidates and Other Legal Compliance Matters
Even if a current or future product candidate receives marketing approval, it may fail to achieve the degree of market acceptance by physicians, patients, third-party payors, and others in the medical community necessary for commercial success.
Ethical, social, and legal concerns about gene and cell therapies could result in additional regulations restricting or prohibiting our product candidates. Even with the requisite approvals from the FDA in the United States, the EMA in the European Union, and other regulatory authorities internationally, the commercial success of product candidates will depend, in part, on the acceptance of physicians, patients, and healthcare payors, as medically necessary, cost-effective, and safe. Public perception may be influenced by claims that gene and cell therapies are unsafe, and any product candidate that we commercialize may not gain acceptance by physicians, patients, healthcare payors, and others in the medical community. In particular, our success will depend upon appropriate physicians prescribing treatments that involve the use of our product candidates in lieu of, or in addition to, existing treatments they are already familiar with and for which greater clinical data may be available. If these products do not achieve an adequate level of acceptance, we may not generate significant product revenue to make the products profitable.
Delays in obtaining regulatory approval of manufacturing processes and facilities or disruptions in manufacturing processes may delay or disrupt our commercialization efforts.
Before we can begin to commercially manufacture our product candidates for human therapeutics, we must obtain regulatory approval from the FDA for the applicable manufacturing process and facility. This likely will require the manufacturing facility to pass a pre-approval inspection by the FDA. A manufacturing authorization must also be obtained from the appropriate European Union regulatory authorities.
In order to obtain FDA approval, we will need to ensure that all of the processes, methods, and equipment are compliant with cGMP and perform extensive audits of vendors, contract laboratories, and suppliers. If any of our vendors, contract laboratories

or suppliers is found to be out of compliance with cGMP, we may experience delays or disruptions in manufacturing while we work with these third parties to remedy the violation(s) or while we work to identify suitable replacement vendors. The cGMP requirements govern, among other things, quality control of the manufacturing process, raw materials, containers/closures, buildings and facilities, equipment, storage and shipment, labeling, laboratory activities, data integrity, documentation policies and procedures, and returns. In complying with cGMP, we will be obligated to expend time, money, and effort in production, record keeping, and quality control to assure that the product meets applicable specifications and other requirements. If we fail to comply with these requirements, we would be subject to possible regulatory action that could adversely affect our business, results of operations, financial condition, and cash flows, including the inability to sell any products that we may develop.
Even if we receive marketing approval of a product candidate, we will be subject to ongoing regulatory obligations and continued regulatory review, which may result in significant additional expense. If we fail to comply or experience unanticipated problems with our products, we may be subject to administrative and judicial enforcement, including monetary penalties, for non-compliance and our approved products, if any, could be deemed misbranded or adulterated and prohibited from continued distribution.
Even if we obtain regulatory approval for our product candidates, these candidates will be subject to ongoing regulatory requirements for manufacturing, labeling, packaging, storage, advertising, promotion, sampling, record-keeping, and submission of safety and other post-market information. Regulatory approvals also may be subject to a REMS, limitations on the approved indicated uses for which the product may be marketed or to the conditions of approval, or contain requirements for potentially costly post-marketing testing, including Phase 4 clinical trials, and surveillance to monitor the quality, safety and efficacy of the product. For example, the holder of an approved BLA is obligated to monitor and report adverse events and any failure of a product to meet the specifications in the BLA. The FDA guidance advises that patients treated with some types of gene therapy undergo follow-up observations for potential adverse events for as long as 15 years. The holder of an approved BLA also must submit new or supplemental applications and obtain FDA approval for certain changes to the approved product, product labeling or manufacturing process. Advertising and promotional materials must comply with FDA rules and are subject to FDA review, in addition to other potentially applicable federal and state laws.
If we fail to comply with applicable regulatory requirements following approval of any of our product candidates, a regulatory authority may take adverse actions, which include, among other things, a range of sanctions from issuing a warning letter, monetary penalties, or causing us to withdraw the product from the market.
In addition, the FDA's policies, and those of equivalent foreign regulatory agencies, may change and additional government regulations may be enacted that could prevent, limit or delay regulatory approval of our product candidates. We cannot predict the likelihood, nature, or extent of government regulation that may arise from future legislation or administrative action, either in the United States or abroad. If we are slow or unable to adapt to changes in existing requirements or the adoption of new requirements or policies, or if we are not able to maintain regulatory compliance, we may lose any marketing approval that we may have obtained and we may not achieve or sustain profitability, which would materially and adversely affect our business, financial condition, results of operations, and prospects.
Obtaining and maintaining marketing approval of our current and future product candidates in one jurisdiction does not mean that we will be successful in obtaining and maintaining marketing approval of our current and future product candidates in other jurisdictions.
Obtaining and maintaining marketing approval of our current and future product candidates in one jurisdiction does not guarantee that we will be able to obtain or maintain marketing approval in any other jurisdiction, while a failure or delay in obtaining marketing approval in one jurisdiction may have a negative effect on the marketing approval process in others. For example, even if the FDA grants marketing approval of a product candidate, comparable regulatory authorities in foreign jurisdictions must also approve the manufacturing, marketing, and promotion of the product candidate in those countries. Approval procedures vary among jurisdictions and can involve requirements and administrative review periods different from, and greater than, those in the United States, including additional preclinical studies or clinical trials conducted in one jurisdiction may not be accepted by regulatory authorities in other jurisdictions. In many jurisdictions outside the United States, a product candidate must be approved for reimbursement before it can be approved for sale in that jurisdiction. In some cases, the price that we intend to charge for our products is also subject to approval.
We may also submit marketing applications in other countries. Regulatory authorities in jurisdictions outside of the United States have requirements for approval of product candidates with which we must comply prior to marketing in those jurisdictions. Obtaining foreign marketing approvals and compliance with foreign regulatory requirements could result in significant delays, difficulties and costs for us and could delay or prevent the introduction of our products in certain countries. If we fail to comply with the regulatory requirements in international markets or fail to receive applicable marketing approvals,

our target market will be reduced and our ability to achieverealize the full market potential of our product candidates will be harmed.
The successful commercialization of our product candidates will depend in part on the extent to which third-party payors, including governmental authorities and private health insurers, provide coverage and adequate reimbursement levels, as well as implement pricing policies favorable for our product candidates. Failure to obtain or maintain profitability;
coverage and adequate reimbursement for our relationships, and the associated exclusivity terms, with collaborators and licensees in our target end markets;
product candidates, if approved, could limit our ability to developmarket those products and maintain technologies that our collaborators and licensees continue to use and that new collaborators are seeking;
decrease our ability to enter into strategic transactions, ECCs, license agreements or JVs;generate revenue.
the feasibilityThe availability of producingcoverage and commercializingadequacy of reimbursement by third-party payors, including managed care plans, governmental healthcare programs, such as Medicare and Medicaid and private health insurers is essential for most patients to be able to afford medical services and pharmaceutical products enabled bysuch as our technologies;
obligations to provide resources to our collaborators or to the collaborations themselves pursuant to the terms of the relevant ECC, license agreement or JV agreement;
ourproduct candidates that receive FDA approval. Our ability to manageachieve acceptable levels of coverage and reimbursement for our growth;

the outcomes of research programs, clinical trials,product candidates or otherprocedures using our product development and approval processes conductedcandidates by our collaborators and licensees;
the ability of our collaborators and licensees to develop and successfully commercialize products enabled by our technologies;
third-party payors will have an effect on our ability to successfully scale up productioncommercialize our product candidates. Obtaining coverage and adequate reimbursement for our product candidates may be particularly difficult because of the higher prices often associated with drugs administered under the supervision of a physician. Separate reimbursement for the product itself or the treatment or procedure in which our product candidate is used may not be available. A decision by a third-party payor not to cover or not to separately reimburse for our product candidates or procedures using our product candidates could reduce physician utilization of our commercialproducts once approved. Assuming there is coverage for our product candidates, or procedures using our product candidates by a third-party payor, the resulting reimbursement payment rates may not be adequate or may require co-payments that patients find unacceptably high. We cannot be sure that coverage and reimbursement in the United States, the European Union, or elsewhere will be available for our current or future product candidates, or for any procedures using such product candidates, and any reimbursement that may become available may not be adequate or may be decreased or eliminated in the future.
There is significant uncertainty related to the insurance coverage and reimbursement of newly-approved products. The Medicare and Medicaid programs are increasingly used as models in the United States for how private third-party payors and other governmental payors develop their coverage and reimbursement policies for drugs and biologics. Some third-party payors may require pre-approval of coverage for new or innovative devices or drug therapies before they will reimburse healthcare providers who use such therapies. We cannot predict at this time what third-party payors will decide with respect to the coverage and reimbursement for our product candidates.
No uniform policy for coverage and reimbursement for products exist among third-party payors in the United States. Therefore, coverage and reimbursement for products can differ significantly from payor to payor. As a result, the coverage determination process is often a time-consuming and costly process that may require us to provide scientific and clinical support for the use of our product candidates to each payor separately, with no assurance that coverage and adequate reimbursement will be applied consistently or obtained in the first instance. Furthermore, rules and regulations regarding reimbursement change frequently, in some cases on short notice, and we believe that changes in these rules and regulations are likely.
Moreover, increasing efforts by third-party payors in the United States and abroad to cap or reduce healthcare costs may cause such organizations to limit both coverage and the level of reimbursement for newly approved products and, customer acceptance thereof;
risks associatedas a result, they may not cover or provide adequate payment for our product candidates. We expect to experience pricing pressures in connection with the international aspectssale of our business;
our abilityproduct candidates due to integrate any businesses or technologies we may acquire with our business;
our ability to accurately report our financial resultsthe trend toward managed healthcare, the increasing influence of health maintenance organizations and additional legislative changes. The downward pressure on healthcare costs in a timely manner;
our dependence on,general, particularly prescription drugs and the need to attractbiologics and retain, key managementsurgical procedures and other personnel;treatments, has become intense. As a result, increasingly high barriers are being erected to the entry of new products.
our ability to obtain, protect and enforce our intellectual property rights;
our ability to prevent the theft or misappropriation of our intellectual property, know-how or technologies;
potential advantages that our competitors, the competitors of our collaborators,Our business may be adversely affected by current and potential competitors may have in securing funding or developing competing technologies or products;future healthcare reforms.
our ability to obtain additional capital that may be necessary to expand our business;
our collaborators' ability to obtain additional capital that may be necessary to developIn the U.S., federal and commercialize products under our ECCs, license agreementsstate legislatures, health agencies and JVs;
our exposure to the volatility associated with recording the fair value of securities of our collaborators held by us;
business interruptions such as power outages and other natural disasters;
public concerns about the ethical, legal and social ramifications of GE products and processes;
the impact of new accounting pronouncements on our current and future operating results;
our ability to use our net operating loss carryforwards to offset future taxable income;
the impact of the Tax Act on our current and future operating results; and
the results of our consolidated subsidiaries.
Due to the various factors mentioned above, and others, the results of any prior quarterly or annual periods should not be relied upon as indications of our future operating performance.
We have a limited operating history, which may make it difficult to evaluate our current business and predict our future performance.
We have been in existence since 1998. From 1998 until 2010, our operations focused primarily on organizing and staffing our company and developing our technologies. Our current business strategy, including our plansthird-party payors continue to focus on partnering later-stage assets,containing the cost of health care. Legislative and regulatory proposals and enactments to reform health care insurance programs could significantly influence the manner in which our product candidates, if approved, are prescribed and purchased. For example, the Affordable Care Act has changed the way health care is stillpaid for by both governmental and private insurers, including increased rebates owed by manufacturers under the Medicaid Drug Rebate Program, annual fees and taxes on manufacturers of certain branded prescription drugs, the requirement that manufacturers participate in a discount program for certain outpatient drugs under Medicare Part D and the expansion of the number of hospitals eligible for discounts under Section 340B of the Public Health Service Act. In addition, there have been efforts by the Trump Administration to repeal or replace certain aspects of the Affordable Care Act and to alter the implementation of the Affordable Care Act and related laws. For example, the Tax Cuts and Jobs Act enacted on December 22, 2017, eliminated the tax-based shared responsibility payment for individuals who fail to maintain minimum essential coverage under section 5000A of the Code, commonly referred to as the "individual mandate,"

effective January 1, 2019. Further, the Bipartisan Budget Act of 2018, among other things, amended the Medicare statute to reduce the coverage gap in most Medicare drug plans, commonly known as the "donut hole," by raising the required manufacturer point-of-sale discount from 50% to 70% off the negotiated price effective as of January 1, 2019. Further legislative changes, regulatory changes, and judicial challenges related to the Affordable Care Act remain possible.
There is also significant economic pressure on state budgets that may result in states increasingly seeking to achieve budget savings through mechanisms that limit coverage or payment for certain drugs. In recent years, some states have considered legislation and ballot initiatives that would control the prices of drugs, including laws to allow importation of pharmaceutical products from lower cost jurisdictions outside the U.S. and laws intended to impose price controls on state drug purchases. State Medicaid programs are increasingly requesting manufacturers to pay supplemental rebates and requiring prior authorization by the state program for use of any drug for which supplemental rebates are not being tested.paid. Government efforts to reduce Medicaid expenses may lead to increased use of managed care organizations by Medicaid programs. This may result in managed care organizations influencing prescription decisions for a larger segment of the population and a corresponding constraint on prices and reimbursement for our product candidates, if approved. In January 2011, we recognized our first revenuesaddition, under the Affordable Care Act, as states implement their health care marketplaces or operate under the federal exchange, the impact on drug manufacturers will depend in part on the formulary and benefit design decisions made by insurance sponsors or plans participating in these programs.
We cannot predict the likelihood, nature, or extent of government regulation that may arise from our first ECC and many of our products and services offerings are either awaiting regulatory approvalsfuture legislation or administrative action in the early stage of commercialization. Outside of collaboration and license fee payments, which vary over time,United States. It is possible that we have not generated significant revenues, including revenuesmay need to provide discounts or royalties from product sales by us or our collaborators. Our limited operating history may make it difficultrebates to evaluate our current business and predictsuch plans in order to maintain favorable formulary access for our future performance. Any assessments of our current business and predictions made about our future success or viability may not be as accurate as they could beproduct candidates, if we had a longer operating history. We have encountered and will continue to encounter risks and difficulties frequently experienced by growing companies in rapidly changing industries. If we do not address these risks successfully, our business will be harmed.

We may pursue strategic acquisitions and investmentsapproved, which could have an adverse impact on our sales and results of operations. In addition, if we or any third parties we may engage are slow or unable to adapt to changes in existing requirements or the adoption of new requirements or policies, or if we or such third parties are not able to maintain regulatory compliance, our product candidates may lose any regulatory approval that may have been obtained.
Our relationships with customers, third-party payors, and others may be subject to applicable anti-kickback, fraud and abuse and other healthcare laws and regulations, which could expose us to criminal sanctions, civil penalties, contractual damages, reputational harm, administrative burdens and diminished profits and future earnings.
Healthcare providers, physicians, and third-party payors will play a primary role in the recommendation and prescription of any product candidates for which we obtain marketing approval. Our arrangements with third-party payors and customers may expose us to broadly applicable fraud and abuse and other healthcare laws and regulations that may constrain the business or financial arrangements and relationships through which we market, sell and distribute any products for which we obtain marketing approval. Restrictions under applicable federal and state healthcare laws and regulations, include, but are not limited to, the following:
the federal Anti-Kickback Statute, which prohibits persons from, among other things, knowingly and willfully soliciting, offering, receiving or providing remuneration, directly or indirectly, in cash or in kind, to induce or reward, or in return for, the referral of an individual for the furnishing or arranging for the furnishing, or the purchase, lease or order, or arranging for or recommending purchase, lease or order, or any good or service for which payment may be made under a federal healthcare program such as Medicare and Medicaid;
the federal civil False Claims Act, which imposes liability, including through civil whistleblower or qui tam actions, against individuals or entities for knowingly presenting, or causing to be presented, to the federal government, claims for payment that are false or fraudulent or making a false statement to avoid, decrease or conceal an obligation to pay money to the federal government;
HIPAA's fraud provisions, which impose criminal liability for knowingly and willfully executing a scheme to defraud any healthcare benefit program, knowingly and willfully embezzling or stealing from a healthcare benefit program, willfully obstructing a criminal investigation of a health care offense, or knowingly and willfully making false statements relating to healthcare matters;
HIPAA generally, which also imposes obligations on certain covered entity health care providers, health plans and health care clearinghouses as well as their business associates that perform certain services involving the use or disclosure of individually identifiable health information, including mandatory contractual terms, with respect to safeguarding the privacy, security and transmission of individually identifiable health information;
the federal Physician Payment Sunshine Act, being implemented as the Open Payments Program, which requires manufacturers of drugs, devices, biologics, and medical supplies for which payment is available under Medicare,

Medicaid or the Children's Health Insurance Program (with certain exceptions) to report annually to CMS information related to direct or indirect payments and other transfers of value to physicians and teaching hospitals, as well as ownership and investment interests held in the company by physicians and their immediate family members. Beginning in 2022, applicable manufacturers also will be required to report information regarding payments and transfers of value provided to physician assistants, nurse practitioners, clinical nurse specialists, certified nurse anesthetists, and certified nurse-midwives; and
analogous state and foreign laws and regulations, such as state anti-kickback and false claims laws, which may apply to items or services reimbursed by non-governmental third-party payors, including private insurers; state and foreign laws that require pharmaceutical companies to comply with the pharmaceutical industry's voluntary compliance guidelines and the relevant compliance guidance promulgated by the federal government or otherwise restrict payments that may be made to healthcare providers in those jurisdictions; state and foreign laws that require drug manufacturers to report information related to payments and other transfers of value to physicians and other healthcare providers or marketing expenditures; some states also prohibit certain marketing-related activities including the provision of gifts, meals, or other items to certain health care providers, and others restrict the ability of manufacturers to offer co-pay support to patients for certain prescription drugs; other states and cities require identification or licensing of sales representatives; and state and foreign laws that govern the privacy and security of health information in certain circumstances, many of which differ from each other in significant ways and often are not preempted by HIPAA, thus complicating compliance efforts.
Efforts to ensure that our business arrangements with third parties will comply with applicable healthcare laws and regulations will involve substantial costs. Although compliance programs can help mitigate the risk of investigations and prosecution for violations of these laws, the risks cannot be eliminated entirely. It is possible that governmental authorities will conclude that our business practices may not comply with current or future statutes, regulations, or case law interpreting applicable fraud and abuse or other healthcare laws and regulations. If our operations are found to be in violation of any of these laws or any other governmental regulations that may apply to us, we may be subject to significant civil, criminal and administrative penalties, damages, fines, imprisonment, exclusion from government funded healthcare programs, such as Medicare and Medicaid, and the curtailment or restructuring of our operations.
Defending against actions or investigations for violations of these laws and regulations, even if they are unsuccessful.ultimately successful, will incur significant legal expenses and divert management's attention from the operation of our business.
We have made acquisitionsmay incur significant costs complying with environmental, health, and safety laws and regulations, and failure to comply with these laws and regulations could expose us to significant liabilities.
We use hazardous chemicals and radioactive and biological materials in our business, including in MBP Titan and Trans Ova, and are subject to a variety of federal, state, local and international laws and regulations governing, among other matters, the use, generation, manufacture, transportation, storage, handling, disposal of, and human exposure to these materials both in the pastUnited States and if appropriate opportunities become available, we may acquire additional businesses, assets, technologies or productsoverseas, including regulation by governmental regulatory agencies, such as the Occupational Safety and Health Administration and the EPA. We have incurred, and will continue to enhanceincur, capital and operating expenditures and other costs in the ordinary course of our business in complying with these laws and regulations. Although we maintain workers' compensation insurance to cover us for costs and expenses we may incur due to injuries to our employees resulting from the future. Inuse of hazardous materials, this insurance may not provide adequate coverage against potential liabilities. We do not maintain insurance for environmental liability or toxic tort claims that may be asserted against us in connection with any future acquisitions,our storage or disposal of biological or hazardous materials.
We are subject to certain U.S. and foreign anti-corruption, anti-money laundering, export control, sanctions and other trade laws and regulations. We can face serious consequences for violations.
Among other matters, U.S. and foreign anti-corruption, anti-money laundering, export control, sanctions and other trade laws and regulations, which are collectively referred to as Trade Laws, prohibit companies and their employees, agents, clinical research organizations, legal counsel, accountants, consultants, contractors and other partners from authorizing, promising, offering, providing, soliciting, or receiving directly or indirectly, corrupt or improper payments or anything else of value to or from recipients in the public or private sector.
Our business is heavily regulated and therefore involves significant interaction with public officials. We have direct or indirect interactions with officials and employees of government agencies or government-affiliated hospitals, universities and other organizations. We also expect our non-U.S. activities to increase in time. Additionally, in many other countries, the healthcare providers who prescribe pharmaceuticals are employed by their government, and the purchasers of pharmaceuticals are

government entities; therefore, our dealings with these prescribers and purchasers are subject to regulation under the U.S. Foreign Corrupt Practices Act of 1977, as amended, or FCPA. We plan to engage third parties for clinical trials and/or to obtain necessary permits, licenses, patent registrations, and other regulatory approvals and we could:
issue additional equity securities, which would dilute our current shareholders;
incur substantial debt to fundcan be held liable for the acquisitions;corrupt or
assume significant liabilities.
Although we conduct due diligence reviews other illegal activities of our acquisition targets,personnel, agents, or partners, even if we do not explicitly authorize or have prior knowledge of such processes may fail to reveal significant liabilities. Acquisitions involve numerous risks, including:
problems integrating the purchasedactivities. In particular, our operations facilities, technologies or products;
unanticipated costs and other liabilities;
diversion of management's attention from our core businesses;
adverse effects on existing business relationships with current and/or prospective collaborators, customers and/or suppliers;
risks associated with entering markets in which we have no or limited prior experience; and
potential loss of key employees.
Acquisitions also may require us to record goodwill and non-amortizable intangible assets that will be subject to impairment testingFCPA, which prohibits, among other things, U.S. companies and their employees and agents from authorizing, promising, offering, or providing, directly or indirectly, corrupt or improper payments or anything else of value to foreign government officials, employees of public international organizations and foreign government-owned or affiliated entities, candidates for foreign political office, and foreign political parties or officials thereof. Recently, the SEC and Department of Justice have increased their FCPA enforcement activities with respect to biotechnology and pharmaceutical companies. There is no certainty that all of our employees, agents, suppliers, manufacturers, contractors, or collaborators, or those of our affiliates, will comply with all applicable laws and regulations, particularly given the high level of complexity of these laws.
Violations of these laws and regulations could result in fines, criminal sanctions, including imprisonment, against us, our officers, or our employees, the closing down of facilities, including those of our suppliers and manufacturers, requirements to obtain export licenses, cessation of business activities in sanctioned countries, implementation of compliance programs, debarment, reputational harm, prohibitions on the conduct of our business, and other consequences. Any such violations could also result in prohibitions on our ability to offer our product candidates in one or more countries as well as difficulties in manufacturing or continuing to develop our product candidates, and could materially damage our reputation, our brand, our ability to attract and retain employees and our business, prospects, operating results, and financial condition.
Risks Related to our Business Operations and Strategy
Our efforts to realign our business and divest assets may not be successful and could increase our capital requirements, increase our costs, or otherwise harm our operating results and financial condition.
Our business strategy has evolved, and continues to evolve, toward relationships and structures that provide us with more control and ownership over the development process and commercialization path. This approach entails risks in implementation and operations and there is no guarantee that it will be successful. Furthermore, our focus on a regular basishealthcare-oriented business strategy will require additional capital beyond what we have available, and potential periodicwe may incur costs associated with the implementation and execution of our changing business strategy. In addition, as we perform our annual impairment tests, we will evaluate the impact of changes in our business strategy and, as a result, may incur impairment charges incur amortization expenses related to certain intangible assets, and incur large and immediate write-offs and restructuring and other related expenses, allany of which, if material, could harm our operating results and financial condition. In addition,Market changes and changes in judgments, assumptions, and estimates that we may acquire companies that have insufficient internal financial controls,made in assessing the fair value of goodwill could cause us to consider some portion or all of certain assets to become impaired, which could impair our ability to integrate the acquired company and adversely impact our financial reporting. If we fail in our integration efforts with respect to any of our acquisitions and are unable to efficiently operate as a combined organization, our business and financial condition may be adversely affected.
As a result of the Company's annual goodwill impairment test, the Company recorded a $13.8 million goodwill impairment charge incondition. For the year ended December 31, 2017. See Note 112019, we also recorded a noncash charge of $29.8 million which arose from the impairment of goodwill, primarily related to a write down of the enterprise value of Trans Ova.
In January 2020, we announced and completed a sale of the majority of our consolidated financial statements appearing elsewherebioengineering assets to TS Biotechnology. We simultaneously announced that Intrexon EF Holdings, Inc., our wholly owned subsidiary, sold its 50 percent membership interest in this Annual Report for additional discussion.
We may encounter difficulties in connection with our acquisitions.
EnviroFlight. For the year ended December 31, 2019, we recorded a loss on discontinued operations of $116.2 million related to the sale of these assets. We cannot be certainprovide any assurances that these recent, or any acquisitionfuture, divestitures will be successful or thatachieve the business goals we will realize the anticipated benefits of the acquisition.expect. In particular, weaddition, any future divestiture activities may not be able to realize the strategicpresent financial and operational benefits and objectives we had anticipated. In addition, we may face increased competition inrisks, including the markets for any acquired products. Any of the following factors may have a material adverse effect on our business, operating results and financial condition. These factors may include:
the potential disruption of our ongoing business and(1) diversion of management resources;
unanticipated expenses related toattention from existing core businesses, (2) the acquired operations;
the impairment of relationships with the acquired customers;
the impairment of relationships with key suppliers and their ability to meet our demand;
potential unknown liabilitieschallenges associated with the acquired business and technology;
potential liabilities related to litigation involving the acquired companies;

potential periodic impairment of goodwill and intangible assets acquired; and
potential inability to retain, integrate and motivate key personnel.
We own equity interests in several of our collaborators and have exposure to the volatility and liquidity risks inherent in holding their equity.
Our collaborators may have limited capital in which case we may allow them to pay technology access fees, milestone payments or other contractual payments in shares of their common stock or other equity. As a result, we own equity interests in several of our collaborators. Owning equity in our collaborators further increases our exposure to the risks of our collaborators' businesses beyond our dependence on these collaborators to provide market and product development expertise, as well as sales, marketing and regulatory capabilities. Our equity ownership in our collaborators exposes us to volatility and the potential for negative returns. We may have restrictions on resale and/or limited markets to sell our equity ownership. In many cases, our equity position is a minority position which exposes us to further risk as we are not able to exert control over the companies in which we hold securities.
We evaluate prospective collaborators based on a variety of factors such as their capabilities, capacity and expertise in a defined field. The process by which we obtain equity interests in our collaborators and the factors we consider in deciding whether to acquire, hold or dispose of these equity positions may differ significantly from those that an independent investor would consider when purchasing equity interests in the collaborator. One significant factor would include our own expectation as to the success of our efforts to assist the collaborator in developing products enabled by our technologies.
We own common stock of several publicly traded companies and the values of those equity interests are subject to market price volatility. We own preferred stock in publicly traded companies, most of which may be converted into shares of common stock in the future, and the value of these equity interests is subject to fluctuation due to uncertainties of the timing and occurrence of the defined conversion events, the volatility of the underlying common stock, and changes in general economicseparating personnel and financial conditionsand other systems, including impaired employee relations, and (3) inefficiencies or increased costs, any of the collaborator. For each collaborator where we own equity securities, we make an accounting policy election to present them at either the fair value at the end of each reporting period or using the cost or equity method depending on our level of influence. We have adopted the fair value method of accounting for certain of these securities, and therefore, have recorded them at fair value at the end of each reporting period with the unrealized gain or loss recorded as a separate component of other income or expense, net, for the period. As of December 31, 2017 and 2016, the aggregate original cost basis of our common stock investments was $102.6 million and $104.0 million, respectively, and the market value was $15.1 million and $23.5 million, respectively. As of December 31, 2017 and 2016, the aggregate original cost basis of our preferred stock investments was $148.3 million and $127.4 million, respectively, and the market value was $161.2 million and $129.5 million, respectively. The fair value of these securities is subject to fluctuation in the future due to the volatility of the stock market, changes in general economic conditions and changes in the financial conditions of the investee.
The equity of our collaborators may not be publicly traded, and if it is traded publicly, the trading market could be limited or have low trading volume. In some cases, we could hold unregistered shares and we may not have demand registration rights with respect to those shares. We own preferred stock in publicly traded companies that may be converted into shares of common stock, but the timing of that conversion is uncertain and may never occur. If the conversion does not occur, there is a risk that we may not be able to sell the preferred stock. We evaluate whether any discounts for trading restrictions or other basis for lack of marketability should be applied to the fair value of the securities at inception of the ECC or JV. In the event we conclude that a discount should be applied, the fair value of the securities is adjusted at inception of the ECC or JV and re-evaluated at each reporting period thereafter. We have substantial liquidity risk related to these holdings, and we may not be able to sell, or sell quickly, all or part of these equity interests.
In connection with future ECCs or JVs, we may, from time to time, receive from collaborators, both public and private, warrants, rights and/or options, all of which involve special risks. To the extent we receive warrants or options in connection with future ECCs or JVs, we would be exposed to risks involving pricing differences between the market value of underlying securities and our exercise price for the warrants or options, a possible lack of liquidity and the related inability to close a warrant or options position, all of which could ultimately have an adverse effect on our financial position.
We use estimates in determining the fair value of certain assets and liabilities. If our estimates prove to be incorrect, we may be required to write down the value of these assets or write up the value of these liabilities, which could adversely affect our business, financial position.
Our ability to measure and report our financial position and operating results is influenced by the need to estimate the impact or outcome of future events on the basis of information available at the time of the financial statements. An accounting estimate is

considered critical if it requires that management make assumptions about matters that were highly uncertain at the time the accounting estimate was made. If actual results differ from management's judgments and assumptions, then they may have an adverse impact on ourcondition, results of operations and cash flows.
Fair value is estimated based on a hierarchy that maximizes the use of observable inputs and minimizes the use of unobservable inputs. Observable inputs are inputs that reflect the assumptions that market participants would use in pricing the asset or liability developed based on market data obtained from sources independent of the reporting entity. Unobservable inputs are inputs that reflect the reporting entity's own assumptions about the assumptions market participants would use in pricing the asset or liability developed based on the best information available in the circumstances. The fair value hierarchy prioritizes the inputs to valuation techniques into three broad levels whereby the highest priority is given to Level 1 inputs and the lowest to Level 3 inputs.
Over time, Finally, as we have expanded the naturecontinue our efforts to focus our business and generate additional capital, we may be willing to enter into transactions involving one or more of our operations,remaining operating segments and reporting units for which we record impairment charges related to the numberwrite off of goodwill and complexity of estimates we use in determining fair value has increased. As of December 31, 2017intangible assets.
We rely on third parties, including through collaborations, to develop and 2016, 22 percent and 35 percentcommercialize some of our consolidated total assets, respectively, were measured at fair valueproduct candidates. Markets in which our collaborators are developing product candidates using our technologies are subject to extensive regulation, and we rely on a recurring basis, including 19 percentour collaborators to comply with all applicable laws and 14 percent as of December 31, 2017regulations.
We have entered, and 2016, respectively, which were considered Level 3 valuations. Our largest Level 3 asset carried at fair value is our investment in preferred stock of ZIOPHARM. As of December 31, 2017 and 2016, liabilities measured at fair value on a recurring basis were not a significant portion of our total liabilities. We estimate the fair value of our assets and liabilities using assumptions that we believe are appropriate and are used by market participants. The methodology used to estimate these values is complex and uses asset- and liability-specific data and market inputs for assumptions including interest and discount rates and expected future performance and liquidity dates.
Valuations are highly dependent upon the reasonableness of management's assumptions and the predictability of the relationships that drive the results of our valuation methodologies. Because of the inherent unpredictabilitymay in the future performanceenter into collaboration arrangements to develop product candidates enabled by our technologies. There can be no guarantee that we can successfully manage these relationships. If our collaborators are not able to successfully develop the product candidates enabled by our technologies, none of these enabled product candidates will become commercially available, and we will receive no back-end payments under these arrangements. Some of our existing collaborators do not themselves have the investments requiring Level 3 valuations,resources necessary to commercialize product candidates, and they in turn will need to

rely on additional sources of financing or third-party collaborations. We may be asked to, or choose to, invest additional funds in these collaborators so that they can execute on their business plans. If we fail to invest such additional funds, the collaborator may not have sufficient capital to continue operations. In addition, we typically have limited or no control over the amount or timing of resources that any collaborator is able or willing to devote to developing product candidates or collaborative efforts. Any of our collaborators may fail to perform its obligations. Our collaborators may breach or terminate their agreements with us or otherwise fail to conduct their collaborative activities successfully and in a timely manner.
Our technologies are used in product candidates that are subject to extensive regulation by governmental authorities. We depend on our collaborators to comply with these laws and regulations with respect to product candidates they produce using our technologies, and we do not independently monitor whether our collaborators comply with applicable laws and regulations. If our collaborators fail to comply with applicable laws and regulations, we are subject to substantial financial and operating risks because, in addition to our own compliance, we also depend on our collaborators to produce the end products enabled by our technologies for sale.
We have previously entered into strategic collaborations, which we may fail to successfully manage, or from which disputes may arise.
We have previously entered into strategic collaborations, including ECCs and JVs, to develop products enabled by our technologies. There can be requiredno guarantee that we can successfully manage these relationships, as they involve complex interests and our interests and our collaborators' interests may diverge, including as we transition away from, or terminate, strategic collaborations. In some cases, our strategic collaborations have resulted in disagreements and disputes with our current and former collaborators regarding the relative rights, obligations, and revenues of us and our collaboration partners. In addition, we remain susceptible to adjust the valuefuture additional disagreements and disputes with any of certain assets, whichour current or future collaborators. Disagreements and disputes may result in litigation, unfavorable settlements or concessions by us, or management distraction, that could adversely affectharm our financial position.business operations.
We rely on our subsidiaries, our collaborators, subsidiaries and other third parties to deliver timely and accurate information in order to accurately report our financial results in the time frame and manner required by law.
We need to receive timely, accurate, and complete information from a number of third parties in order to accurately report our financial results on a timely basis. We rely on our collaboratorssubsidiaries and subsidiariescertain collaborators to provide us with complete and accurate information regarding revenues, expenses, and payments owed to or by us on a timely basis. In addition, we intend to rely on current and future collaborators under our collaboration agreements and JVs to provide us with product sales and cost saving information in connection with royalties, if any, owed to us. If the information that we receive is not accurate, our consolidated financial statements may be materially incorrect and may require restatement, and we may not receive the full amount of consideration to which we are entitled under our collaboration agreements or JVs. Although we have audit rights with these parties, performing such an audit could be expensive and time consuming and may not be adequate to reveal any discrepancies in a timeframe consistent with our reporting requirements. We own a significant equity position in several of our collaborators, including a majority position in two of our collaborators. In the future, we may need to consolidate the financial statements of one or more other collaborators into our consolidated financial statements. Although we have contractual rights to receive information and certifications allowing us to do this, such provisions may not ensure that we receive information that is accurate or timely. As a result, we may have difficulty completing accurate and timely financial disclosures, which could have an adverse effect on our business.
Our ability to use our net operating loss carryforwards and certain other tax attributes may be limited.
As of December 31, 2017, we had net operating loss carryforwards of approximately $244.3 million for U.S. federal income tax purposes available to offset future taxable income and U.S. federal and state research and development tax credits of $7.7 million prior to consideration of annual limitations that may be imposed under Section 382 of the Internal Revenue Code of 1986, as amended, or Section 382. These carryforwards begin to expire in 2022. As a result of our past issuances of stock, as well as due to prior mergers and acquisitions, certain of Intrexon's net operating losses have been subject to limitations pursuant to Section 382. As of December 31, 2017, Intrexon has utilized all net operating losses subject to Section 382 limitations, other than those losses inherited via acquisitions. As of December 31, 2017, approximately $33.6 million of domestic net operating losses were acquired via acquisition and are limited based on the value of the target at the time of the transaction. Future changes in stock ownership may also trigger an ownership change and, consequently, a Section 382 limitation. As of December 31, 2017, our direct foreign subsidiaries had foreign loss carryforwards of approximately $151.4 million, most of which do not expire.

The Tax Act introduces certain limitations on utilization of losses that are generated after 2017, generally limiting utilization of those losses to 80 percent of future annual taxable income. However, losses generated after 2017 will generally have an indefinite carryforward period.
The effects of the Tax Act on our business have not yet been fully analyzed and could have an adverse effect on our business.
On December 22, 2017, the Tax Act was signed into law. We are in the process of analyzing the Tax Act and its possible effects on us, including on our subsidiaries. The Tax Act, among other things, reduces the corporate tax rate to 21 percent effective January 1, 2018, eliminates the corporate alternative minimum tax, imposes a new minimum tax on global intangible low-taxed income ("GILTI") and implements a modified territorial tax system that includes a one-time transition tax on deemed repatriated earnings of foreign subsidiaries. Where a reasonable estimate could be determined, we have recorded provisional amounts in our consolidated financial statements for the year ended December 31, 2017, which primarily resulted in the write down of our domestic deferred tax assets by $87.5 million as a result of the new corporate tax rate. This reduction in deferred tax assets was fully offset by a reduction in our valuation allowance. We have provisionally estimated our one-time transition tax exposure to be zero.
The provisional amounts we recorded are subject to further refinement within the measurement period prescribed by Staff Accounting Bulletin No. 118, or SAB 118. As a result, the recorded amounts are subject to change, possibly materially, due to, among other things, changes in interpretations of the Tax Act, any legislative action to address questions that arise because of the Tax Act, any changes in accounting standards for income taxes or related interpretations in response to the Tax Act, or any updates or changes to estimates we have utilized to provisionally determine the transition impact.
We are exposed to exchange rate fluctuation.
We have international subsidiaries in a number of foreign countries, including Belgium, Brazil, Canada, England and Hungary. As a consequence, we are exposed to risks associated with changes in foreign currency exchange rates. We present our consolidated financial statements in U.S. dollars. Our international subsidiaries have assets and liabilities denominated in currencies other than the U.S. dollar. Future expenses and revenues of our international subsidiaries are expected to be denominated in currencies other than in U.S. dollars. Therefore, movements in exchange rates to translate from foreign currencies may have an impact on our reported results of operations, financial position and cash flows.
Risks related to our technologies and business operations
Ethical, legal and social concerns about synthetic biologically engineered products and processes could limit or prevent the use of products or processes using our technologies, limit consumer acceptance and limit our revenues.
Our technologies and the technologies of our JVs and collaborators involve the use of synthetic biologically engineered products or synthetic biological technologies. Public perception about the safety and environmental hazards of, and ethical concerns over, GE products and processes could influence public acceptance of our and our collaborators' technologies, products and processes.
The subject of genetically modified organisms has received negative publicity, which has aroused public debate. In addition, certain of the products of our operating subsidiaries have been the subject of negative publicity, including AAS, Arctic apples and GE mosquitoes. This adverse publicity has led to, and could continue to lead to, greater regulation and trade restrictions on imports of genetically altered products. Further, there is a risk that products produced using our technologies could cause adverse health effects or other adverse events, which could also lead to negative publicity.
There is also an active and vocal group of opponents to genetically modified organisms who wish to ban or restrict the technology and who, at a minimum, hope to sway consumer perceptions and acceptance of this technology. Their efforts include regulatory legal challenges and labeling campaigns for genetically modified products, as well as application of pressure to consumer retail outlets seeking a commitment not to carry genetically modified products. Further, these groups have a history of bringing legal action against companies attempting to bring new biotechnology products to market. For example, on March 30, 2016, a coalition of non-governmental organizations filed a complaint against the FDA, the United States Fish and Wildlife Service, and related individuals for their roles in the approval of AAS. We may be subject to future additional litigation brought by one or more of these organizations in their attempt to block the development or sale of our products. In addition, animal rights groups and various other organizations and individuals have attempted to stop genetic engineering activities by pressing for legislation and additional regulation in these areas. We may not be able to overcome the negative consumer

perceptions and potential legal hurdles that these organizations seek to instill or assert against our products and our business could be harmed.
If we and our collaborators are not able to overcome the ethical, legal and social concerns relating to synthetic biological engineering, products and processes using our technologies may not be accepted. These concerns could result in increased expenses, regulatory scrutiny, delays or other impediments to our programs or the public acceptance and commercialization of products and processes dependent on our technologies or inventions. The ability of us and our collaborators to develop and commercialize products, or processes using our technologies could be limited by public attitudes and governmental regulation.
Inadvertent releases or unintended consequences of releases of synthetic biology technologies by us or others could lead to adverse effects on our business and results of operations.
The synthetic biological technologies that we develop may have significantly enhanced characteristics compared to those found in naturally occurring organisms, enzymes or microbes. While we produce many of these synthetic biological technologies only for use in a controlled laboratory and industrial environment, the release of such synthetic biological technologies into uncontrolled environments could have unintended consequences. Any adverse effect resulting from such a release, by us or others, could have a material adverse effect on the public acceptance of our products and our business and financial condition. Such a release could result in enhanced regulatory activity and we could have exposure to liability for any resulting harm.
We may become subject to increasing regulation in the future.
Our ongoing research and development relies on evaluations in animals, which may become subject to bans or additional regulations. As described above, our research operations are also subject to various environmental regulations. However, while most of the current laws and regulations concerning synthetic biology relate to the end products produced using synthetic biology, this may change. For example, the Presidential Commission for the Study of Bioethical Issues in December 2010 recommended that the federal government oversee, but not regulate, synthetic biology research. The Presidential Commission also recommended that the government lead an ongoing review of developments in the synthetic biology field and that the government conduct a reasonable risk assessment before the field release of synthetic organisms. Synthetic biology may become subject to additional government regulations as a result of the recommendations, which could require us to incur significant additional capital and operating expenditures and other costs in complying with these laws and regulations.
We have limited experience bringing new products through development and successful commercialization. Even if our technologies enable new products, we or our collaborators may not be successful in commercializing the products that result from our technologies.
Even if our technologies enable new products, there is no guarantee that we or our collaborators will be successful in creating additional products enabled by our technologies. Furthermore, neither we nor our collaborators may be able to commercialize the resulting products or our collaborators may decide to use other methods competitive with our technologies that do not utilize synthetic biology. Several of our wholly and majority-owned subsidiaries have received regulatory approvals, including AquaBounty and Okanagan. These approvals do not, however, guarantee our success in commercializing the products of these subsidiaries. If we are not successful in commercializing our products, our business could be harmed.
Changing labeling requirements may negatively impact consumer acceptance of the products of our operating subsidiaries.
Under current labeling laws, we are not required to label AAS or our Arctic apples at the retail level as containing genetically modified ingredients. However, because several states either passed or considered new laws specifying varying requirements for labeling products sold at the retail level that contain genetically modified ingredients, the United States Congress passed the Labeling Act to establish a national standard for package labeling for foods containing genetically modified ingredients. The USDA has until July 2018 to implement this new law. Labeling requirements could cause consumers to view the label as either a warning or as an indication that AAS is inferior to traditional Atlantic salmon or Arctic apples are inferior to traditional apples, which could negatively impact consumer acceptance of the products of our operating subsidiaries.
The FDA has only approved a few gene therapies.
The FDA first approved a gene therapy for use in humans in 2017, and to date has only approved a limited number. The field of gene therapies is still very early in development and remains predominantly experimental. Clinical trials with gene therapies have encountered a multitude of significant technical problems in the past, including unintended integration with host DNA leading to serious adverse events, poor levels of protein expression, transient protein expression, viral overload, immune reactions to either viral capsids utilized to deliver DNA, DNA itself, proteins expressed or cells transfected with DNA. There

can be no assurance that our development efforts or those of our collaborators will be successful, that we or they will receive the regulatory approvals necessary to initiate clinical trials, where applicable, or that we will ever be able to successfully commercialize a product enabled by our technologies. To the extent that we or our collaborators utilize viral constructs or other systems to deliver gene therapies and the same or similar delivery systems demonstrate unanticipated and/or unacceptable side effects in preclinical or clinical trials conducted by ourselves or others, we may be forced to, or elect to, discontinue development of such products.
If we lose key personnel, including key management personnel, or are unable to attract and retain additional personnel, it could delay our product development programs, harm our research and development efforts, and we may be unable to pursue collaborations or develop our own products.
Our business involves complex operations across a variety of markets and requires a management team and employee workforce that is knowledgeable in the many areas in which we operate. The loss of any key members of our management, including our Chief Executive Officer, Randal J. Kirk, or the failure to attract or retain other key employees who possess the requisite expertise for the conduct of our business, could prevent us from developing and commercializing our products for our target markets and entering into collaborations or licensing arrangements to execute on our business strategy. In addition, the loss of any key scientific staff, or the failure to attract or retain other key scientific employees, could prevent us from developing our technologies for our target markets and entering into ECCs, JVs or licensing arrangements or from further developing and commercializing our products and services offerings to execute on our business strategy. We may not be able to attract or retain qualified employees in the future due to the intense competition for qualified personnel among biotechnology, synthetic biology and other technology-based businesses, or due to the unavailability of personnel with the qualifications or experience necessary for our business. If we are not able to attract and retain the necessary personnel to accomplish our business objectives, we may experience staffing constraints that will adversely affect our ability to meet the demands of our collaborators and customers in a timely fashion or to support our internal research and development programs. In particular, our product and process development programs are dependent on our ability to attract and retain highly skilled scientists. Competition for experienced scientists and other technical personnel from numerous companies and academic and other research institutions may limit our ability to attract and retain such personnel on acceptable terms.
Our planned activities, including the further development and scale-up of operating subsidiaries, will require additional expertise in specific industries and areas applicable to the products and processes developed through our technologies or acquired through strategic or other transactions, especially in the end markets that we seek to penetrate. These activities will require the addition of new personnel, and the development of additional expertise by existing personnel. The inability to attract personnel with appropriate skills or to develop the necessary expertise could impair our ability to grow our business.
We may encounter difficulties managing our growth, which could adversely affect our business.
Currently, we are working simultaneously on multiple projects targeting several industries. These diversified operations place increased demands on our limited resources and require us to substantially expand the capabilities of our administrative and operational resources and to attract, train, manage and retain qualified management, technicians, scientists and other personnel. As our operations expand domestically and internationally, we will need to continue to manage multiple locations and additional relationships with various customers, collaborators, suppliers and other third parties. Our ability to manage our operations, growth and various projects effectively will require us to make additional investments in our infrastructure to continue to improve our operational, financial and management controls and our reporting systems and procedures and to attract and retain sufficient numbers of talented employees, which we may be unable to do effectively. As a result, we may be unable to manage our expenses in the future, which may negatively impact our gross margins or operating margins in any particular quarter. In addition, we may not be able to successfully improve our management information and control systems, including our internal control over financial reporting, to a level necessary to manage our growth.
Competitors and potential competitors may develop products and technologies that make ours obsolete or garner greater market share than ours.
We do not believe that we have any direct competitors who provide comparable technologies of similar depth and breadth which enable to the same extent the commercialization of products developed using synthetic biology across a broad spectrum of biologically-based industries. However, there are companies that have competing technologies for individual pieces of our proprietary suite of complementary technologies. One portion of our proprietary technology related to DNA synthesis and assembly includes the ability to synthesize new DNA. We believe the following companies engage in the manufacture of DNA components: ATUM, Inc., Blue Heron Biotech, LLC (a subsidiary of OriGene), Integrated DNA Technologies, Inc. (IDT), GenScript USA, Inc., and Life Technologies Corporation, now part of Thermo Fisher Scientific Inc.

The synthetic biology industry and each of the commercial sectors we have targeted are characterized by rapid technological change and extensive competition. Our future success will depend on our ability to maintain a competitive position with respect to technological advances. Academic institutions also are working in this field. Technological development by others may result in our technologies, as well as products developed by our collaborators using our technologies, becoming obsolete.
The rapidly evolving market for developing GE T-cells in particular, is characterized by intense competition and rapid innovation. Genetically engineering T-cells faces significant competition in the CAR technology space from multiple companies and their collaborators, such as Novartis/University of Pennsylvania, Bluebird Bio/Celgene/Baylor College of Medicine/Five Prime/Gilead Sciences/ViroMed Laboratories, Kite Pharma/National Cancer Institute, Juno Therapeutics/Fred Hutchinson Cancer Research Center/Memorial Sloan-Kettering Cancer Center/Seattle Children's Research Institute, Cellectis/Pfizer/Servier, Adaptimmune/GSK and Bellicum Pharmaceuticals. We face competition from non-cell based treatments offered by other companies such as Amgen, AstraZeneca, Bristol-Myers, Incyte, Merck, and Roche.
Our ability to compete successfully will depend on our ability to develop proprietary technologies that can be used by our collaborators to produce products that reach the market in a timely manner and are technologically superior to and/or are less expensive than other products on the market. Certain of our competitors may benefit from local government subsidies and other incentives that are not available to us or our collaborators. As a result, our competitors may be able to develop competing and/or superior technologies and processes, and compete more aggressively and sustain that competition over a longer period of time than we or our collaborators can. As more companies develop new intellectual property in our markets, a competitor could acquire patent or other rights that may limit products using our technologies, which could lead to litigation.
We may be sued for product liability.
Each of our collaborations requires the collaborator to indemnify us for liability related to products produced pursuant to the ECC or JV and to obtain insurance coverage related to product liability in amounts considered standard for the industry. We believe that these industry-standard coverage amounts range from $10 million to $40 million in the aggregate. Even so, we may be named in product liability suits relating to products that are produced by our collaborators using our technologies. Moreover, as we develop more products through our own operations and JVs, our potential exposure to such claims will increase. These claims could be brought by various parties, including other companies who purchase products from us or our collaborators or by the end users of the products. We cannot guarantee that our collaborators will not breach the indemnity and insurance coverage provisions of the ECCs or JVs. Further, insurance coverage is expensive and may be difficult to obtain, and may not be available to us or to our collaborators in the future on acceptable terms, or at all. We cannot assure you that we or our collaborators will have adequate insurance coverage against potential claims. In addition, although we currently maintain product liability insurance for our technologies in amounts we believe to be commercially reasonable, if the coverage limits of these insurance policies are not adequate, a claim brought against us, whether covered by insurance or not, could have a material adverse effect on our business, results of operations, financial condition and cash flows. This insurance may not provide adequate coverage against potential losses, and if claims or losses exceed our liability insurance coverage, we may go out of business. If we cannot successfully defend ourselves against product liability claims, we may incur substantial liabilities or be required to limit commercialization of our product candidates. Regardless of the merits or eventual outcome, liability claims may result in:
reduced resources of our management to pursue our business strategy;
decreased demand for products enabled by our technologies;
injury to our or our collaborators' reputations and significant negative media attention;
withdrawal of clinical trial participants;
initiation of investigations by regulators;
product recalls, withdrawals or labeling, marketing or promotional restrictions;
significant costs to defend resulting litigation;
substantial monetary awards to trial participants or patients;
loss of revenue; and

the inability to commercialize any products using our technologies.
We depend on sophisticated information technology and infrastructure.
We rely on various information systems to manage our operations. These systems are complex and include software that is internally developed, software licensed from third parties and hardware purchased from third parties. These products may contain internal errors or defects, particularly when first introduced or when new versions or enhancements are released. Failure of these systems could have an adverse effect on our business, which in turn may materially adversely affect our operating results and financial condition.
We may incur significant costs complying with environmental, health and safety laws and regulations, and failure to comply with these laws and regulations could expose us to significant liabilities.
We use hazardous chemicals and radioactive and biological materials in our business and are subject to a variety of federal, state, local and international laws and regulations governing, among other matters, the use, generation, manufacture, transportation, storage, handling, disposal of, and human exposure to these materials both in the United States and overseas, including regulation by governmental regulatory agencies, such as the Occupational Safety and Health Administration and the EPA. We have incurred, and will continue to incur, capital and operating expenditures and other costs in the ordinary course of our business in complying with these laws and regulations.
We have international operations and assets and may have additional international operations and assets in the future. Our international operations and assets may be subject to various economic, social and governmental risks.
Our international operations and any future international operations may expose us to risks that could negatively impact our future results. Our operations may not develop in the same way or at the same rate as might be expected in a country with an economy similar to the United States. The additional risks that we may be exposed to in these cases include, but are not limited to:
tariffs and trade barriers;
currency fluctuations, which could decrease our revenues or increase our costs in U.S. dollars;
regulations related to customs and import/export matters;
tax issues, such as tax law changes and variations in tax laws;
limited access to qualified staff;
inadequate infrastructure;
cultural and language differences;
inadequate banking systems;
different and/or more stringent environmental laws and regulations;
restrictions on the repatriation of profits or payment of dividends;
crime, strikes, riots, civil disturbances, terrorist attacks or wars;
nationalization or expropriation of property;
law enforcement authorities and courts that are weak or inexperienced in commercial matters; and
deterioration of political relations among countries.

The agricultural products of several of our operating subsidiaries are subject to disease outbreaks which can increase the cost of production and/ or reduce production harvests, and the loss of existing organisms and germplasm would result in the loss of commercial technology.
Several of the products of our operating subsidiaries, including Trans Ova, Exemplar, AquaBounty and Okanagan, are subject to periodic outbreaks of a variety of diseases. Although these companies take measures to protect their stock, there can be no assurance that a disease will not damage or destroy existing organisms or germplasm. The economic impact of disease to our subsidiaries' production systems can be significant, as farmers must incur the cost of preventive measures, such as vaccines and antibiotics, and then if infected, the cost of lost or reduced harvests.
Our plans to pursue development and commercialization of adoptive cellular therapies based on CAR T-cell therapies, or CARs, are new approaches to cancer treatment that present significant challenges in a competitive landscape and the success of our efforts depends in large part on our owned and licensed intellectual property, and our efforts may be affected by litigation and developments in intellectual property law outside of our control.
Through our wholly owned subsidiary, Precigen, we intend to employ technologies licensed from the University of Texas MD Anderson Cancer Center, or MD Anderson, together with our existing suite of proprietary technologies, through both our existing exclusive collaboration agreement with ZIOPHARM and our existing collaboration with Ares Trading S.A., or Ares Trading, a subsidiary of the biopharmaceutical business of Merck KGaA, to pursue the development and commercialization of adoptive cellular therapies based on CARs under control of RheoSwitch technology targeting a variety of cancer malignancies. Because this is a new approach to cancer immunotherapy and cancer treatment generally, developing and commercializing product candidates subjects us and our collaborators to a number of challenges, including:
obtaining regulatory approval from the FDA and other regulatory authorities that have very limited experience with the commercial development of genetically modified T-cell therapies for cancer;
developing and deploying consistent and reliable processes for engineering a patient's T-cells ex vivo and infusing the engineered T-cells back into the patient;
possibly conditioning patients with chemotherapy in conjunction with delivering each of the potential products, which may increase the risk of adverse side effects of the potential products;
educating medical personnel regarding the potential side effect profile of each of the potential products, such as the potential adverse side effects related to cytokine release;
developing processes for the safe administration of these potential products, including long-term follow-up for all patients who receive the potential products;
sourcing additional clinical and, if approved, commercial supplies for the materials used to manufacture and process the potential products;
developing a manufacturing process and distribution network with a cost of goods that allows for an attractive return on investment;
establishing sales and marketing capabilities after obtaining any regulatory approval required to gain market access and acceptance;
developing therapies for types of cancers beyond those addressed by the current potential products;
not infringing the intellectual property rights, in particular, the patent rights, of third parties, including competitors developing alternative CAR T-cell therapies; and
avoiding any applicable regulatory barriers to market, such as data and marketing exclusivities held by third parties, including competitors with approved CAR T-cell therapies.
We cannot be sure that T-cell immunotherapy technologies developed in our collaborations will yield satisfactory products that are safe and effective, scalable, or profitable.

We and our collaborators are dependent on patents, know-how, and proprietary technology in our collaborations, both our own and licensed from others. Any termination of these licenses could result in the loss of significant rights and could harm our ability to commercialize our product candidates. Disputes may also arise between us and these licensors regarding intellectual property subject to a license agreement, including those relating to:
the scope of rights granted under the license agreement and other interpretation-related issues;
whether and the extent to which our technology and processes, and the technology and processes of our collaborators, infringe on intellectual property of the licensor that is not subject to the license agreement;
our right to sublicense patent and other rights to third parties under collaborative development relationships;
whether we and our collaborators are complying with our diligence obligations with respect to the use of the licensed technology in relation to our development and commercialization of our potential products under our collaborations; and
the allocation of ownership of inventions and know-how resulting from the joint creation or use of intellectual property by our licensors and by us and our collaborators.
If disputes over intellectual property that we or our collaborators have licensed in connection with our collaboration prevent or impair our or our collaborators ability to maintain our current licensing arrangements, particularly with MD Anderson, on acceptable terms, we may be unable to successfully develop and commercialize the affected potential products. We are generally also subject to all of the same risks with respect to protection of intellectual property that we license as we are for intellectual property that we own. If we or our licensors fail to adequately protect this intellectual property, our ability to commercialize potential products under our collaborations could suffer.
Because our gene therapy technology is novel, it is difficult to predict the time and cost of development and of subsequently obtaining regulatory approval.
There can be no assurance that we, including our subsidiaries and our collaborators, will not experience problems or delays in developing new product candidates and that such problems or delays will not cause unanticipated costs, or that any such development problems can be solved. We also may experience unanticipated problems or delays in expanding our manufacturing capacity, which may prevent the completion of clinical trials and the commercializing of products on a timely or profitable basis, if at all. For example, we, a collaborator or another group may uncover a previously unknown risk with any of our product candidates, and this may prolong the period of observation required for obtaining regulatory approval or may necessitate additional clinical testing.
In addition, the clinical trial requirements of the FDA, European Medicines Agency, or EMA, and other regulatory authorities and the criteria these regulators when evaluating product candidates vary substantially according to the type, complexity, novelty and intended use and market of such product candidates. The regulatory approval process for novel product candidates such as ours can be more expensive and take longer than for other, better known or more extensively studied product candidates. Even if we and our collaborators are successful in developing product candidates, it is difficult to determine how long it will take or how much it will cost to obtain regulatory approvals in either the United States or the European Union or how long it will take to commercialize these product candidates.
Regulatory requirements governing gene and cell therapy products have changed frequently and may continue to change in the future. For example, the FDA has established the Office of Cellular, Tissue and Gene Therapies within the Center for Biologics Evaluation and Research, or CBER, to consolidate the review of gene therapy and related products, and has established the Cellular, Tissue and Gene Therapies Advisory Committee to advise CBER in its review. Gene therapy clinical trials conducted at institutions that receive funding for recombinant DNA research from U.S. National Institutes of Health, or NIH, also potentially are subject to review by the NIH office of Biotechnology Activities' Recombinant DNA Advisory Committee, or RAC; however, NIH has announced that the RAC will only publicly review clinical trials if the trials cannot be evaluated by standard oversight bodies and pose unusual risks. Although the FDA decides whether individual gene therapy protocols may proceed, the RAC public review process, if undertaken, can delay the initiation of a clinical trial, even if the FDA has reviewed the trial design and details and approved its initiation. Conversely, the FDA can put an IND on a clinical hold even if the RAC has provided a favorable review or an exemption from in-depth, public review. In addition, adverse developments in clinical trials of gene therapy products conducted by others may cause the FDA or other oversight bodies to change the requirements for approval of any of our product candidates and those of our collaborators.

There is a high failure rate for drugs and biologics proceeding through clinical trials, at all stages of development.
Results from preclinical studies or previous clinical trials are not necessarily predictive of future clinical trial results, and interim results of a clinical trial are not necessarily indicative of final results. Our product candidates and those of our collaborators may fail to show the desired results in clinical development despite demonstrating positive results in preclinical studies or having successfully advanced through initial clinical trials.
There is a high failure rate for drugs and biologics proceeding through clinical trials. Many companies in the pharmaceutical and biotechnology industries have suffered significant setbacks in late-stage clinical trials even after achieving promising results in preclinical testing and earlier-stage clinical trials. Data obtained from preclinical and clinical activities are subject to varying interpretations, which may delay, limit or prevent regulatory approval. In addition, we and our collaborators may experience regulatory delays or rejections as a result of many factors, including changes in regulatory policy during the period of product candidate development. Any such delays could materially and adversely affect our business, financial condition, results of operations and prospects.
Our and our collaborators' product candidates may cause undesirable side effects or have other properties that could delay or prevent their regulatory approval, limit the commercial potential or result in significant negative consequences following any potential marketing approval.
There have been several significant adverse side effects in gene therapy treatments in the past, including reported cases of leukemia and death seen in other trials using other vectors. While new recombinant vectors and other approaches have been developed to reduce these side effects, gene therapy and synthetic biology therapy in general is still a relatively new approach to disease treatment and additional adverse side effects could develop. There also is the potential risk of delayed adverse events following exposure to these products due to persistent biologic activity of the genetic material or other components of products used to carry the genetic material.
Other possible adverse side effects that could occur with treatment with synthetic biology products include an immunologic reaction early after administration which, while not necessarily adverse to the patient's health, could substantially limit the effectiveness of the treatment. In previous clinical trials involving adeno-associated virus, or AAV, vectors for gene therapy, some subjects experienced the development of a T-cell response, whereby after the vector is within the target cell, the cellular immune response system triggers the removal of transduced cells by activated T-cells. If similar effect occurs with our or our collaborators' products, we or our collaborators may decide or be required to halt or delay further clinical development of our product candidates.
Additionally, if any of our or our collaborators' product candidates receives marketing approval, FDA could require us to adopt a REMS to ensure that the benefits outweigh its risks, which may include, among other things, a medication guide outlining the risks of the product for distribution to patients and a communication plan to health care practitioners. Such requirements could prevent us from achieving or maintaining market acceptance of our product candidates and could significantly harm our business, prospects, financial condition and results of operations.
We and our collaborators may find it difficult to enroll patients in clinical trials, which could delay or prevent us and our collaborators from proceeding with clinical trials.
Identifying and qualifying patients to participate in clinical trials of our and our collaborators' product candidates is critical to success. The timing of clinical trials depends on the ability to recruit patients to participate as well as completion of required follow-up periods. If patients are unwilling to participate in our or our collaborators' clinical studies for any number of reasons, such as because of negative publicity from adverse events related to the biotechnology or gene therapy fields, the timeline for recruiting patients, conducting studies and obtaining regulatory approval may be delayed. These delays could result in increased costs, delays in advancing product candidates, or termination of the clinical trials altogether.
Even if we and our collaborators complete the necessary clinical trials, we cannot predict when, or if, we and our collaborators will obtain regulatory approval to commercialize a product candidate and the approval may be for a more narrow indication than we seek.
We and our collaborators cannot commercialize a product candidate until the appropriate regulatory authorities have reviewed and approved the product candidate. Even where product candidates meet their endpoints in clinical trials, the regulatory authorities may not complete their review processes in a timely manner, or may not grant regulatory approval. Additional delays may result if an FDA Advisory Committee or other regulatory authority recommends non-approval or restrictions on approval. In addition, we and our collaborators may experience delays or rejections based upon additional government

regulation from future legislation or administrative action, or changes in regulatory authority policy during the period of product development, clinical trials and the review process.
Regulatory authorities also may approve a product candidate for more limited indications than requested or they may impose significant limitations in the form of narrow indications, warnings or a REMS. These regulatory authorities may require precautions or contra-indications with respect to conditions of use or they may grant approval subject to the performance of costly post-marketing clinical trials. In addition, regulatory authorities may not approve the labeling claims that are necessary or desirable for the successful commercialization of our product candidates. Any of the foregoing scenarios could materially harm the commercial prospects for our product candidates and materially and adversely affect our business, financial condition, results of operations and prospects.
Even if we or our collaborators obtain regulatory approval for a product candidate, the product will remain subject to regulatory oversight.
Even if we and our collaborators obtain regulatory approval for our product candidates, these candidates will be subject to ongoing regulatory requirements for manufacturing, labeling, packaging, storage, advertising, promotion, sampling, record-keeping and submission of safety and other post-market information. Regulatory approvals also may be subject to a REMS, limitations on the approved indicated uses for which the product may be marketed or to the conditions of approval, or contain requirements for potentially costly post-marketing testing, including Phase 4 clinical trials, and surveillance to monitor the quality, safety and efficacy of the product. For example, the holder of an approved Biologics License Application, or BLA, is obligated to monitor and report adverse events and any failure of a product to meet the specifications in the BLA. The FDA guidance advises that patients treated with some types of gene therapy undergo follow-up observations for potential adverse events for as long as 15 years. The holder of an approved BLA also must submit new or supplemental applications and obtain FDA approval for certain changes to the approved product, product labeling or manufacturing process. Advertising and promotional materials must comply with FDA rules and are subject to FDA review, in addition to other potentially applicable federal and state laws.
In addition, product manufacturers and their facilities are subject to continual review and periodic inspections by the FDA and other regulatory authorities for compliance with cGMPs requirements and adherence to commitments made in the U.S. or foreign marketing application. If we, our collaborators, or a regulatory authority, discover previously unknown problems with a product, such as adverse events of unanticipated severity or frequency, or problems with the facility where the product is manufactured or disagrees with the promotion, marketing or labeling of that product, a regulatory authority may impose restrictions relative to that product, the manufacturing facility or us, including requiring recall or withdrawal of the product from the market or suspension of manufacturing.
If we fail to comply with applicable regulatory requirements following approval of any of our product candidates, a regulatory authority may take adverse actions, which include, among other things, a range of sanctions from issuing a warning letter to causing us to withdraw the product from the market.
In addition, the FDA's policies, and those of equivalent foreign regulatory agencies, may change and additional government regulations may be enacted that could prevent, limit or delay regulatory approval of our product candidates. We cannot predict the likelihood, nature or extent of government regulation that may arise from future legislation or administrative action, either in the United States or abroad. If we are slow or unable to adapt to changes in existing requirements or the adoption of new requirements or policies, or if we are not able to maintain regulatory compliance, we may lose any marketing approval that we may have obtained and we may not achieve or sustain profitability, which would materially and adversely affect our business, financial condition, results of operations and prospects.
Risks related to manufacturing human therapeutics
Synthetic biology therapies are novel, complex and difficult to manufacture. We or our collaborators could experience production problems that result in delays in product development or commercialization programs or otherwise adversely affect our business.
The manufacturing processes that we and our collaborators use to produce synthetic biology product candidates for human therapeutics are complex, novel and have not been validated for commercial use. Several factors could cause production interruptions, including equipment malfunctions, facility contamination, raw material shortages or contamination, natural disasters, disruption in utility services, human error or disruptions in the operations of our suppliers.

Our and our collaborators' synthetic biology product candidates require processing steps that are more complex than those required for most chemical pharmaceuticals. Moreover, unlike chemical pharmaceuticals, the physical and chemical properties of a biologic often cannot be fully characterized. As a result, assays of the finished product may not be sufficient to ensure that the product will perform in the intended manner. Accordingly, it is necessary to employ multiple steps to control our manufacturing process to assure that the product candidate is made strictly and consistently in compliance with the process. Problems with the manufacturing process, even minor deviations from the normal process, could result in product defects or manufacturing failures that result in lot failures, product recalls, product liability claims or insufficient inventory. We or our collaborators may encounter problems achieving adequate quantities and quality of clinical-grade materials that meet FDA, EMA or other applicable standards or specifications with consistent and acceptable production yields and costs.
Any problems in our manufacturing process or facilities could make us a less attractive collaborator for potential partners, which could limit our access to additional attractive development programs.
Delays in obtaining regulatory approval of manufacturing processes and facilities or disruptions in manufacturing processes may delay or disrupt our commercialization efforts.
Before we or our collaborators can begin to commercially manufacture our product candidates for human therapeutics, we must obtain regulatory approval from the FDA for the applicable manufacturing process and facility. A manufacturing authorization must also be obtained from the appropriate European Union regulatory authorities. In addition, the manufacturing facility must pass a pre-approval inspection by the FDA before any of our product candidates can obtain marketing approval. In order to obtain approval, we will need to ensure that all of the processes, methods and equipment are compliant with cGMP, and perform extensive audits of vendors, contract laboratories and suppliers. If any of our vendors, contract laboratories or suppliers is found to be out of compliance with cGMP, we may experience delays or disruptions in manufacturing while we work with these third parties to remedy the violation or while we work to identify suitable replacement vendors. The cGMP requirements govern quality control of the manufacturing process and documentation policies and procedures. In complying with cGMP, we will be obligated to expend time, money and effort in production, record keeping and quality control to assure that the product meets applicable specifications and other requirements. If we fail to comply with these requirements, we would be subject to possible regulatory action and may not be permitted to sell any products that we may develop.
Ethical, legal and social issues related to genetic testing may reduce demand for our product candidates, if approved.
We anticipate that prior to receiving certain cellular, gene, or other synthetic biology therapies, patients may be required to undergo genetic testing. Genetic testing has raised concerns regarding the appropriate utilization and the confidentiality of information provided by genetic testing. Genetic tests for assessing a person's likelihood of developing a chronic disease have focused public attention on the need to protect the privacy of genetic information. For example, concerns have been expressed that insurance carriers and employers may use these tests to discriminate on the basis of genetic information, resulting in barriers to the acceptance of genetic tests by consumers. This could lead to governmental authorities prohibiting genetic testing or calling for limits on or regulating the use of genetic testing, particularly for diseases for which there is no known cure. Any of these scenarios could decrease demand for our product candidates, if approved.
The commercial success of any of our and our collaborators' product candidates will depend upon the degree of market acceptance by physicians, patients, third-party payors and others in the medical community.
Ethical, social and legal concerns about cellular, gene or other synthetic biology therapies could result in additional regulations restricting or prohibiting our products. Even with the requisite approvals from the FDA in the United States, EMA in the European Union and other regulatory authorities internationally, the commercial success of product candidates will depend, in part, on the acceptance of physicians, patients and health care payors of synthetic biology therapy products in general, and our and our collaborators' product candidates in particular, as medically necessary, cost-effective and safe. Any product that we or our collaborators commercialize may not gain acceptance by physicians, patients, health care payors and others in the medical community. If these products do not achieve an adequate level of acceptance, we may or our collaborators may not generate significant product revenue to make the products profitable.

Risks associated with our business strategy
The continued evolution of our business strategy and the restructuring of our business and assets may not be a successful strategy and may increase our capital requirements, increase our costs or otherwise harm our operating results and financial condition.
Our business strategy has evolved, and continues to evolve, toward relationships and structures that provide us with more control and ownership over the development process and commercialization path. This new strategy or approach entails risks in implementation and operations and there is no guarantee that it will be successful. Furthermore, the changing focus of our business strategy may require additional capital beyond what we have historically used and what is available and we may incur costs associated with the implementation and execution of our changing business strategy. In addition, as we perform our annual impairment tests, we will evaluate the impact of changes in our business strategy and, as a result, may incur impairment charges and write-offs and other related expenses, any of which, if material, could harm our operating results and financial condition.
If we fail to maintain and successfully manage our existing ECCs or JVs, we may not be able to develop and commercialize our technologies and achieve or sustain profitability.
We have entered into ECCs or JVs with strategic collaborators to develop products enabled by our technologies. There can be no guarantee that we can successfully manage these ECCs or JVs. We must use diligent efforts to carry out development activities under the ECCs. The exclusivity provisions of each ECC restrict our ability to commercialize our technologies in the designated field covered by the ECC. In most cases, the collaborator may terminate the ECC with us for any reason upon 90 days' notice. In all cases, the ECC may be terminated if we fail to exercise diligent efforts or breach, and fail to cure, other provisions of the ECC. In addition, since our efforts to date have focused on a small number of collaborators in certain targeted sectors, our business could be adversely affected if one or more of these collaborators terminate their ECCs or JVs, fail to use our technologies or fail to develop commercially viable products enabled by our technologies.
Ongoing dependence on ECCs or JVs also will subject us to other risks, including:
we have relinquished important rights regarding the commercialization, marketing and distribution of products and we may disagree with our collaborators' plans in these areas;
although we retain broad rights with respect to intellectual property developed under the ECCs, our collaborators have the right, under certain circumstances, to take control of the enforcement of such intellectual property;
we may have lower revenues than if we were to develop, manufacture, market and distribute products enabled by our technologies ourselves;
a collaborator could, without the use of our synthetic biology technologies, develop and market a competing product either independently or in collaboration with others, including our competitors;
our collaborators could be undercapitalized or fail to secure sufficient resources to fund the development and/or commercialization of the products enabled by our technologies in accordance with the ECC;
our collaborators could become unable or less willing to expend their resources on research and development or commercialization efforts with respect to our technologies due to general market conditions, their financial condition or other circumstances beyond our control;
we may be unable to manage multiple simultaneous ECCs or JVs or fulfill our obligations with respect thereto;
disagreements with a collaborator could develop and any conflict with a collaborator could reduce our ability to enter into future ECCs or JVs and negatively impact our relationships with one or more existing collaborators;
our collaborators could terminate our ECC or JV with them, in which case, our collaborators may retain rights related to certain products, we may not be able to find another collaborator to develop different products in the field and we may not be able to develop different products in the field ourselves;
our business could be negatively impacted if any of our collaborators undergo a change of control to a third party who is not willing to work with us on the same terms or commit the same resources as our current collaborator; and

our collaborators may operate in countries where their operations could be adversely affected by changes in the local regulatory environment or by political unrest.
If any of these events occur, or if we fail to maintain our ECCs or JVs with our collaborators, we may not be able to commercialize our existing and potential technologies, grow our business or generate sufficient revenues to support our operations.
Certain of our collaborators, including some businesses over which we have significant influence, will need additional capital.
In order for certain of our collaborators to execute on their business plans, they will have future capital requirements. We may be asked to, or need to, invest additional funds in these collaborators so that they can execute on their business plans. If we fail to invest such additional funds, the collaborator may not have sufficient capital to continue operations.
We rely on our collaborators to develop, commercialize and market certain products, and they may not be successful.
We depend on our collaborators to commercialize certain products enabled by our technologies. If our collaborators are not able to successfully develop the products enabled by our technologies, none of these enabled products will become commercially available and we will receive no back-end payments under our ECCs or JVs. Because we do not currently and may never possess the resources necessary to independently develop and commercialize all of the potential products that may result from our technologies, our ability to succeed in certain markets depends on our ability to develop and commercialize potential products through an ECC or JV. Some of our existing collaborators do not themselves have the resources necessary to commercialize products and they in turn will need to rely on additional sources of financing or third party collaborations. In addition, pursuant to our current ECCs or JVs and similar ECCs or JVs that we may enter into in the future, we have limited or no control over the amount or timing of resources that any collaborator is able or willing to devote to developing products or collaborative efforts. Any of our collaborators may fail to perform its obligations under the ECC. Our collaborators may breach or terminate their ECCs or JVs with us or otherwise fail to conduct their collaborative activities successfully and in a timely manner. If any of these events were to occur, our revenues, financial condition and results of operations could be adversely affected.
The sales process for strategic transactions or JVs may be lengthy and unpredictable, and we may expend substantial funds and management effort with no assurance of successfully entering into such transactions to commercialize our technologies.
Historically, the sales process for our ECCs and JVs has at times been lengthy and unpredictable. Our evolving focus on consummating strategic transactions and JVs may be equally or more challenging to consummate. Our sales and licensing efforts may require the effective demonstration of the benefits, value, differentiation, validation of our products, technologies and services and significant education and training of multiple personnel and departments within the potential collaborator's organization. We may expend substantial funds and management effort with no assurance that we will execute a transaction or otherwise sell our products, technologies or services. In addition, this lengthy sales cycle makes it more difficult for us to accurately forecast revenue in future periods and may cause revenues and operating results to vary significantly in such periods.
We have entered into a number of ECCs and JVs to date, and we require collaborators to successfully commercialize the products enabled by our technologies.
Our current ECCs and JVs may not be successful. Moreover, because we have limited financial and managerial resources, we will be required to prioritize our application of resources to particular development efforts. Any resources we expend on one or more of these efforts could be at the expense of other potentially profitable opportunities. If we focus our efforts and resources on one or more of these markets and they do not lead to commercially viable products, our revenues, financial condition and results of operations could be adversely affected.
Many of our current collaborators have no experience producing products at the commercial scale needed for the development of their business, and they will not succeed if they cannot effectively commercialize their products.
To the extent we continue to depend on collaborations to develop products with our technologies, our collaborators must demonstrate the ability to utilize our technologies to produce desired products at the commercial scale and on an economically viable basis or they must collaborate with others to do so. The products and processes developed using our technologies may not perform as expected when applied at commercial scale, or our collaborators may encounter operational challenges for which we and they are unable to devise a workable solution. For example, contamination in the production process could

decrease process efficiency, create delays and increase our collaborators' costs. Moreover, under the terms of our ECCs or JVs, we limit the ability of our collaborators to partner their programs with third parties. We and our collaborators may not be able to scale up our production in a timely manner, if at all, even if our collaborators successfully complete product development in their laboratories and pilot and demonstration facilities. If this occurs, the ability of our collaborators to commercialize products and processes using our technologies will be adversely affected, and, with respect to any products that are brought to market, our collaborators may not be able to lower the cost of production, which would adversely affect our ability to increase the future profitability of our business.
Markets in which we, our JVs, and collaborators are developing products using our technologies are subject to extensive regulation, and we rely on our JVs and collaborators to comply with all applicable laws and regulations.
Our technologies are used in products that are subject to extensive regulation by governmental authorities. We depend on our JVs and collaborators to comply with these laws and regulations with respect to products they produce using our technologies and we do not independently monitor whether our collaborators comply with applicable laws and regulations. If either we, our JVs or our collaborators fail to comply with applicable laws and regulations, we are subject to substantial financial and operating risks because, in addition to our own compliance, we also depend on our JVs and collaborators to produce the end products enabled by our technologies for sale, and because, in many cases, we have, or in the future may have, a substantial equity interest in our JVs and collaborators. These regulatory risks are extensive and include the following:
complying with these regulations, including seeking approvals, the uncertainty of the scope of future regulations, and the costs of continuing compliance with regulations could affect our sales and profitability and that of our JVs and collaborators and materially impact our operating results;
our business could be adversely affected if our processes and those used by our JVs and collaborators to manufacture their final products fail to be approved by the applicable regulatory authorities;
where products are subject to regulatory approval, the regulatory approval process can be lengthy, costly, time consuming and inherently unpredictable, and if we and our JVs and collaborators are ultimately unable to obtain regulatory approval for products using our technologies, our business will be substantially harmed;
even if we and our JVs and collaborators are able to commercialize products using our technologies, the product may become subject to post-approval regulatory requirements, unfavorable pricing regulations, third-party payor reimbursement practices or regulatory reform initiatives that could harm our business;
we and our JVs and collaborators conduct on-going research and development that relies on evaluations in animals, which may become subject to bans or additional regulations;
compliance with existing or future environmental laws and regulations could have a material adverse impact on the development and commercialization of products using our technologies; and
to the extent products produced using our technologies are commercialized outside the United States, they will be subject to additional laws and regulations under the jurisdictions in which such products are commercialized.
The markets in which we and our collaborators are developing products using our technologies are highly competitive.
The markets in which we and our collaborators are developing products are, and will continue to be, highly competitive, and there can be no assurance that we or our collaborators will be able to compete effectively. There are numerous companies presently in these markets that are developing products that may compete with, and could adversely affect the prices for, any products developed by our collaborators using our technologies. Many of these competitors and potential competitors are well-established companies with significant resources and experience, along with well-developed distribution systems and networks for their products, valuable historical relationships with potential customers and extensive sales and marketing programs for their products. Some of these competitors may use these resources and their market influence to impede the development and/or acceptance of the products developed by our collaborators using our technologies.
To the extent that any of our collaborators' competitors are more successful with respect to any key competitive factor or our collaborators are forced to reduce, or are unable to raise, the price of any products enabled by our technologies in order to remain competitive, our operating results and financial condition could be materially adversely affected. Competitive pressure could arise from, among other things, safety and efficacy concerns, limited demand or a significant number of additional competitive products being introduced into a particular market, price reductions by competitors, the ability of competitors to

capitalize on their economies of scale, the ability of competitors to produce or otherwise procure products similar or equivalent to those of our collaborators at lower costs and the ability of competitors to access more or newer technology than our collaborators can access (including our own).
Our right to terminate our ECCs is limited.
Generally, we do not have the right to terminate an ECC except in limited circumstances such as the collaborator's failure to exercise diligent efforts in performing its obligations under the ECC, including its development of products enabled by our technologies, or its breach of a term of the ECC that remains uncured for a specified period of time. Moreover, each of our collaborators receives an exclusive license to use all of our technologies in a designated field, potentially in perpetuity. The collaborators we choose in particular fields may not be in the best position to maximize the value of our technologies in that field, if they are capable of commercializing any products at all. In addition, the scope of the field for a particular ECC may prove to be too broad and result in the failure to maximize the value of our technologies in that field.
A significant portion of our business is conducted by JVs that we cannot operate solely for our benefit.
In JVs, we share ownership and management of a company with one or more parties who may not have the same goals, strategies, priorities, or resources as we do and may compete with us outside the JV. JVs are intended to be operated for the benefit of all JV partners, rather than for our exclusive benefit. Operating a business as a JV often requires additional organizational formalities as well as time-consuming procedures for sharing information and making decisions. In JVs we are required to foster our relationships with our JV partners as well as promote the overall success of the JV, and if a JV partner changes or relationships deteriorate, our success in the JV may be materially adversely affected. The benefits from a successful JV are shared among the JV partners, so we do not receive all the benefits from our successful JVs. Moreover, as a partial owner of a JV, we are exposed to potential risks and liabilities that we do not face when we enter into collaboration with an ECC.independent third party.
We may be sued for product liability.
We face an inherent risk of product liability exposure related to the testing of our product candidates in human trials and may face greater risk if we commercialize any products that we develop. Product liability claims may be brought against us by

subjects enrolled in our trials, patients, healthcare providers or others using, administering, or selling our products.
Additionally, each of our collaborations requires the collaborator to indemnify us for liability related to products produced pursuant to the collaboration and to obtain insurance coverage related to product liability in amounts considered standard for the industry. We believe that these industry-standard coverage amounts range from $10 million to $40 million in the aggregate. Even so, we may be named in product liability suits relating to products that are produced by our collaborators using our technologies. These claims could be brought by various parties, including other companies who purchase products from us or our collaborators or by the end users of the products.
We cannot guarantee that our collaborators will not breach the indemnity and insurance coverage provisions of the collaboration. Further, insurance coverage is expensive and may be difficult to obtain, and may not be available to us or to our collaborators in the future on acceptable terms, or at all. We cannot assure you that we or our collaborators will have adequate insurance coverage against potential claims. In addition, although we currently maintain product liability insurance for our technologies in amounts we believe to be commercially reasonable. If the coverage limits of these insurance policies are not adequate, a claim brought against us, whether covered by insurance or not, could have a material adverse effect on our business, results of operations, financial condition, and cash flows or even cause us to go out of business.
Regardless of the merits or eventual outcome, liability claims may result in:
reduced resources of our management to pursue our business strategy;
decreased demand for products enabled by our technologies;
injury to our or our collaborators' reputations and significant negative media attention;
withdrawal of clinical trial participants;
initiation of investigations by regulators;
product recalls, withdrawals or labeling, marketing or promotional restrictions;
significant costs to defend resulting litigation;
substantial monetary awards to trial participants or patients;
loss of revenue; and
the inability to commercialize any products using our technologies.
The livestock products of our operating subsidiaries are subject to disease outbreaks that can increase the cost of production and/or reduce production harvests, and the loss of existing livestock would result in the loss of commercial technology.
Several of the products of our operating subsidiaries, including Trans Ova and Exemplar, are subject to periodic outbreaks of a variety of diseases. Although these companies take measures to protect their stock, there can be no assurance that a disease will not damage or destroy existing livestock. The economic impact of disease to our subsidiaries' production systems can be significant, as farmers must incur the cost of preventive measures, such as vaccines and antibiotics, and then if infected, the cost of lost or reduced production.
The markets in which we are developing candidate products using our technologies are highly competitive. Competitors and potential competitors may develop products and technologies that make ours obsolete or garner greater market share than ours.
While we believe that our novel approach to developing the next generation of gene and cell therapies to target the most urgent and intractable challenges in immuno-oncology, autoimmune disorders, and infectious diseases provides us with competitive advantages, our industry is highly competitive and subject to rapid and significant technological change. Many of our competitors have significantly greater financial, technical, and human resource capabilities than we do, and certain of our competitors may also benefit from local government subsidies and other incentives that are not available to us. In addition, mergers and acquisitions in the pharmaceutical and biotechnology industries may result in even more resources being concentrated among a smaller number of our competitors. As a result of the resources available to our competitors, our

competitors may be able to develop competing and/or superior technologies and processes, and compete more aggressively and sustain that competition over a longer period of time than we can. The availability of reimbursement from government and other third-party payors will also significantly affect the pricing and competitiveness of our products. Our competitors may also obtain FDA or other regulatory approval for their products more rapidly than we may obtain approval for ours, which could result in our competitors establishing a strong market position before we are able to enter the market.
Our lead product candidates include PRGN-3005 for the treatment of ovarian cancer and PRGN-3006 for the treatment of AML, which are built on our UltraCAR-T platform. While we are employing a novel approach, there are a number of competitors pursuing CAR-T cell therapies for the treatment of cancer. We believe that Bristol-Myers Squibb and MaxCyte are developing CAR-T based treatments for ovarian cancer and Celyad, Mustang Bio, MolMed, Amgen (Gilead/Kite partnership), Cellectis S.A., and Allogene Therapeutics are also using CAR-T technology to develop product candidates for the treatment of AML. The CAR-T technology space also has significant other competition including from multiple companies and their collaborators, such as Novartis and University of Pennsylvania, Gilead, Adaptimmune and GSK, Autolus Therapeutics, and Bellicum Pharmaceuticals. We also face competition from non-cell based cancer treatments offered by other companies such as Amgen, AstraZeneca, Incyte, Merck, and Roche.
We are also using our suite of proprietary and complementary technologies for the preclinical and clinical development of product candidates for the treatment of autoimmune disorders, including T1D. We believe that our primary competitors with respect to the development of immunotherapies for T1D are Caladrius BioSciences, Midatech Pharma, and MerciaPharma.
While we believe the proprietary platform of our MBP Titan, our subsidiary developing environmentally-friendly products in the chemical and animal feed industries, holds the potential to modernize the existing gas-to-liquids industry, any products MBP Titan develops will still compete with incumbent technologies and approaches to fuel production, many of whom have the benefit of developed products that are accepted by the market. Many of MBP Titan's competitors in the energy market are significantly larger than MBP Titan and have significantly greater financial, technical, and human resource capabilities. MBP Titan's ability to compete successfully will depend on its ability to develop and produce products that can be scaled to reach the market in a timely manner and are environmentally superior to and/or are less expensive than other products on the market.
There are a number of companies that compete with our subsidiary Trans Ova, including traditional breeding companies and other companies that use advanced reproductive technologies. These competitors may be larger and have better funding than Trans Ova. Trans Ova's competitors may also be companies that have a predominant focus on developing the newest technologies in animal breeding whereas Trans Ova is one part to our overall strategy. Trans Ova's competitors that operate using more traditional breeding techniques may enjoy greater market acceptance over Trans Ova, and other companies, that utilize genetic manipulation, semen sorting and cloning techniques.
Our ability to compete successfully will depend on our ability to develop proprietary technologies that can be used to produce products that reach the market in a timely manner and are technologically superior to and/or are less expensive than other products on the market. As more companies develop new intellectual property in our markets, a competitor could acquire patent or other rights that may limit products using our technologies, which could lead to litigation. To the extent that any of our competitors are more successful with respect to any key competitive factor or we are forced to reduce, or are unable to raise, the price of any products enabled by our technologies in order to remain competitive, our operating results and financial condition could be materially adversely affected.
If we lose key personnel, including key management personnel, or are unable to attract and retain additional personnel, it could delay our product development programs, harm our research and development efforts, and we may be unable to continue to commercialize our product candidates.
Our business involves complex operations and requires a management team and employee workforce that is knowledgeable in the many areas in which we operate. The loss of any key members of our management, including our Chief Executive Officer, Helen Sabzevari Ph.D., or our Executive Chairman, Randal J. Kirk, or the failure to attract or retain other key employees who possess the requisite expertise for the conduct of our business, could prevent us from developing and commercializing our product candidates for our target markets and entering into collaborations or licensing arrangements to execute on our business strategy.
In addition, the loss of any key scientific staff, or the failure to attract or retain other key scientific employees, could prevent us from developing our technologies for our target markets or from further developing and commercializing our products and services offerings to execute on our business strategy. We may not be able to attract or retain qualified employees in the future due to the intense competition for qualified personnel among biotechnology, synthetic biology and other technology-based businesses, or due to the unavailability of personnel with the qualifications or experience necessary for our business. If we are

not able to attract and retain the necessary personnel to accomplish our business objectives, we may experience staffing constraints that will adversely affect our ability to support our internal research and development programs or meet other demands.
We have had a number of executive officers depart from our Company over the last several years and we continually evaluate our leadership structure. For instance, effective January 1, 2020, our Board appointed Dr. Sabzevari, to the position of President and Chief Executive Officer. Mr. Kirk, our previous Chief Executive Officer, remains an employee under the new position of Executive Chairman and continues to serve as Chairman of the Board. As with any leadership changes, our past or future changes could lead to strategic and operational challenges and uncertainties, distractions of management from other key initiatives, inefficiencies or increased costs, any of which could adversely affect our business, financial condition, results of operations, and cash flows.
We depend on sophisticated information technology and infrastructure.
We rely on various information systems to manage our operations. These systems are complex and include software that is internally developed, software licensed from third parties, and hardware purchased from third parties. These products may contain internal errors or defects, particularly when first introduced or when new versions or enhancements are released. Failure of these systems could have an adverse effect on our business, which in turn may materially adversely affect our operating results and financial condition.
If we experience a significant breach of data security or disruption in our information systems, our business could be adversely affected.
We rely on various information systems to manage our operations and to store information, including sensitive data such as confidential business information and personally identifiable information. These systems have been and could continue to be vulnerable to interruption or malfunction, including due to events beyond our control, and to unauthorized access, computer hackers, ransomware, viruses, and other security problems. Failure of these systems or any significant breach of our data security could have an adverse effect on our business and may materially adversely affect our operating results and financial condition.
Data security breaches could result in loss or misuse of information, which could, in turn, result in potential regulatory actions or litigation, including material claims for damages, compelled compliance with breach notification laws, interruption to our operations, damage to our reputation or could otherwise have a material adverse effect on our business, financial condition and operating results. Companies throughout our industry have been increasingly subject to a wide variety of security incidents, cyber-attacks and other attempts to gain unauthorized access to networks or sensitive information. While we have implemented and continue to implement cybersecurity safeguards and procedures, these safeguards have been vulnerable to attack. As cyber threats continue to evolve, we may be required to expend additional resources to enhance our cybersecurity measures or to investigate or remediate any vulnerabilities or breaches.
Although we maintain insurance to protect ourselves in the event of a breach or disruption of our information systems, we cannot ensure that the coverage is adequate to compensate for any damages that may be incurred.
We have international operations and assets and may have additional international operations and assets in the future. Our international operations and assets may be subject to various economic, social, and governmental risks.
Our international operations and any future international operations may expose us to risks that could negatively impact our future results. Our operations may not develop in the same way or at the same rate as might be expected in a country with an economy similar to the United States. The additional risks that we may be exposed to in these cases include, but are not limited to:
tariffs and trade barriers;
currency fluctuations, which could decrease our revenues or increase our costs in United States dollars;
regulations related to customs and import/export matters;
tax issues, such as tax law changes and variations in tax laws;
limited access to qualified staff;

inadequate infrastructure;
cultural and language differences;
inadequate banking systems;
different and/or more stringent environmental laws and regulations;
restrictions on the repatriation of profits or payment of dividends;
disease outbreaks, environmental catastrophes, crime, strikes, riots, civil disturbances, terrorist attacks or wars;
nationalization or expropriation of property;
law enforcement authorities and courts that are weak or inexperienced in commercial matters; and
deterioration of political relations among countries.
Additionally,we are exposed to risks associated with changes in foreign currency exchange rates. We present our consolidated financial statements in United States dollars. Our international subsidiaries have assets and liabilities denominated in currencies other than the United States dollar. Future expenses and revenues of our international subsidiaries are expected to be denominated in currencies other than in United States dollars. Therefore, movements in exchange rates to translate from foreign currencies may have an impact on our reported results of operations, financial position, and cash flows.
We may pursue strategic acquisitions and investments that could have an adverse impact on our business if they are unsuccessful.
We have made acquisitions in the past and, if appropriate opportunities become available, we may acquire additional businesses, assets, technologies, or products to enhance our business in the future. In connection with any future acquisitions, we could:
issue additional equity securities, which would dilute our current shareholders;
incur substantial debt to fund the acquisitions; or
assume significant liabilities.
Although we conduct due diligence reviews of our acquisition targets, such processes may fail to reveal significant liabilities. Acquisitions involve numerous risks, including:
problems integrating the purchased operations, facilities, technologies, or products;
unanticipated costs and other liabilities;
the potential disruption of our ongoing business and diversion of management resources;
adverse effects on existing business relationships with current and/or prospective collaborators, customers and/or suppliers;
unanticipated expenses related to the acquired operations;
risks associated with entering markets in which we have no or limited prior experience;
potential unknown liabilities associated with the acquired business and technology;
potential liabilities related to litigation involving the acquired companies;
potential periodic impairment of goodwill and intangible assets acquired; and

potential loss of key employees or potential inability to retain, integrate, and motivate key personnel.
We cannot be certain that any acquisition will be successful or that we will realize the anticipated benefits of the acquisition. In particular, we may not be able to realize the strategic and operational benefits and objectives we had anticipated.
Acquisitions also may require us to record goodwill and non-amortizable intangible assets that will be subject to impairment testing on a regular basis and potential periodic impairment charges, incur amortization expenses related to certain intangible assets, and incur large and immediate write-offs and restructuring and other related expenses, all of which could harm our operating results and financial condition. In addition, we may acquire companies that have insufficient internal financial controls, which could impair our ability to integrate the acquired company and adversely impact our financial reporting. If we fail in our integration efforts with respect to any of our acquisitions and are unable to efficiently operate as a combined organization, our business, and financial condition may be adversely affected.
We may encounter difficulties managing our growth, which could adversely affect our business.
Currently, we are working simultaneously on multiple projects targeting a handful of industries. We currently operate subsidiaries in the energy and animal genetics markets, and continue to increase our focus on our healthcare business. These diversified operations place increased demands on our limited resources and require us to substantially expand the capabilities of our administrative and operational resources and to attract, train, manage, and retain qualified management, technicians, scientists, and other personnel. If our operations expand domestically and internationally, we will need to continue to manage multiple locations and additional relationships with various customers, collaborators, suppliers, and other third parties. Our ability to manage our operations, growth, and various projects effectively will require us to make additional investments in our infrastructure to continue to improve our operational, financial and management controls, and our reporting systems and procedures and to attract and retain sufficient numbers of talented employees, which we may be unable to do effectively. As a result, we may be unable to manage our expenses in the future, which may negatively impact our gross margins or operating margins in any particular quarter. In addition, we may not be able to successfully improve our management information and control systems, including our internal control over financial reporting, to a level necessary to manage our growth.
Certain of our subsidiaries, including MBP Titan and Trans Ova, operate in industries that are not a part of our core business, and require additional resources and capital.
We anticipate incurring significant costs associated with advancing our production opportunities through MBP Titan and Trans Ova. We may never succeed in advancing our non-healthcare assets and, even if we do, we may never generate revenue that is significant or large enough to achieve profitability. If we do achieve profitability, we may not be able to sustain or increase profitability on a quarterly or annual basis. Alternatively, we may choose to divert the necessary capital and resources from further developing our non-healthcare assets in order to focus on our core healthcare business. The failure of our subsidiaries, including MBP Titan and Trans Ova, to become and remain profitable may decrease the value of our company and could impair our ability to raise capital, maintain our research and development efforts, expand our business, or continue our operations.
We may not have the ability to raise the funds necessary to settle conversions of the Convertible Notes in cash or to repurchase the Convertible Notes upon a fundamental change, and our future debt may contain limitations on our ability to pay cash upon conversion or repurchase of the Convertible Notes.
Holders of Convertible Notes have the right to require us to repurchase their Convertible Notes upon the occurrence of a fundamental change at a fundamental change repurchase price equal to 100 percent of the principal amount of the Convertible Notes to be repurchased, plus accrued and unpaid interest, if any. In addition, upon conversion of the Convertible Notes, unless we elect to deliver solely shares of our common stock to settle such conversion (other than paying cash in lieu of delivering any fractional share), we will be required to make cash payments in respect of the Convertible Notes being converted. However, we may not have enough available cash or be able to obtain financing at the time we are required to make repurchases of Convertible Notes surrendered therefor or Convertible Notes being converted. In addition, our ability to repurchase the Convertible Notes or to pay cash upon conversions of the Convertible Notes may be limited by law, by regulatory authority or by agreements governing our future indebtedness. Our failure to repurchase Convertible Notes at a time when the repurchase is required by the indenture or to pay any cash payable on future conversions of the Convertible Notes as required by the indenture would constitute a default under the indenture. A default under the indenture or the fundamental change itself could also lead to a default under agreements governing our future indebtedness. If the repayment of the related indebtedness were to be accelerated after any applicable notice or grace periods, we may not have sufficient funds to repay the indebtedness and repurchase the Convertible Notes or make cash payments upon conversions thereof.

The conditional conversion feature of the Convertible Notes, if triggered, may adversely affect our financial condition and operating results.
In the event the conditional conversion feature of the Convertible Notes is triggered, holders of Convertible Notes will be entitled to convert the Convertible Notes at any time during specified periods at their option. If one or more holders elect to convert their Convertible Notes, unless we elect to satisfy our conversion obligation by delivering solely shares of our common stock (other than paying cash in lieu of delivering any fractional share), we would be required to settle a portion or all of our conversion obligation through the payment of cash, which could adversely affect our liquidity. In addition, even if holders do not elect to convert their Convertible Notes, we could be required under applicable accounting rules to reclassify all or a portion of the outstanding principal of the Convertible Notes as a current rather than long-term liability, which would result in a material reduction of our net working capital.
The accounting for convertible debt securities that may be settled in cash, such as the Convertible Notes, could have a material effect on our reported financial results.
In May 2008, the Financial Accounting Standards Board, or FASB, issued FASB Staff Position No. APB 14-1, Accounting for Convertible Debt Instruments That May Be Settled in Cash Upon Conversion (Including Partial Cash Settlement), which has subsequently been codified as Accounting Standards Codification, or ASC, Subtopic 470-20, Debt with Conversion and Other Options, or ASC 470-20. Under ASC 470-20, an entity must separately account for the liability and equity components of the convertible debt instruments (such as the Convertible Notes) that may be settled entirely or partially in cash upon conversion in a manner that reflects the issuer's economic interest cost. The effect of ASC 470-20 on the accounting for the Convertible Notes is that the equity component is required to be included in the additional paid-in capital section of shareholders' equity on our consolidated balance sheet, and the value of the equity component would be treated as original issue discount for purposes of accounting for the debt component of the Convertible Notes. As a result, we record a greater amount of noncash interest expense in current periods presented as a result of the amortization of the discounted carrying value of the Convertible Notes to their face amount over the term of the Convertible Notes. We report lower net income in our financial results because ASC 470-20 requires interest to include both the current period's amortization of the debt discount and the instrument's coupon interest, which could adversely affect our reported or future financial results, the trading price of our common stock and the trading price of the Convertible Notes.
In addition, under certain circumstances, convertible debt instruments (such as the Convertible Notes) that may be settled entirely or partly in cash are currently accounted for utilizing the treasury stock method, the effect of which is that the shares issuable upon conversion of the Convertible Notes are not included in the calculation of diluted earnings per share except to the extent that the conversion value of the Convertible Notes exceeds their principal amount. Under the treasury stock method, for diluted earnings per share purposes, the transaction is accounted for as if the number of shares of common stock that would be necessary to settle such excess, if we elected to settle such excess in shares, are issued. We cannot be sure that the accounting standards in the future will continue to permit the use of the treasury stock method. If we are unable to use the treasury stock method in accounting for the shares issuable upon conversion of the Convertible Notes, then our diluted earnings per share would be adversely affected.
We use estimates in determining the fair value of certain assets and liabilities. If new information or changes in circumstances negatively impact our estimates, we may be required to write down the value of these assets or write up the value of these liabilities, which could adversely affect our financial position.
Our ability to measure and report our financial position and operating results is influenced by the need to estimate the impact or outcome of future events on the basis of information available at the time of the financial statements. An accounting estimate is considered critical if it requires that management make assumptions about matters that were highly uncertain at the time the accounting estimate was made. If actual results differ from management's judgments and assumptions, then they may have an adverse impact on our results of operations and cash flows.
Fair value is estimated based on a hierarchy that maximizes the use of observable inputs and minimizes the use of unobservable inputs. Observable inputs are inputs that reflect the assumptions that market participants would use in pricing the asset or liability developed based on market data obtained from sources independent of the reporting entity. Unobservable inputs are inputs that reflect the reporting entity's own assumptions about the assumptions market participants would use in pricing the asset or liability developed based on the best information available in the circumstances. The fair value hierarchy prioritizes the inputs to valuation techniques into three broad levels whereby the highest priority is given to Level 1 inputs and the lowest to Level 3 inputs.
Valuations are highly dependent upon the reasonableness of management's assumptions and the predictability of the relationships that drive the results of our valuation methodologies. Because of the inherent unpredictability in the future

performance of the investments requiring Level 3 valuations, we may be required to adjust the value of certain assets, which could adversely affect our financial position.
Our ability to use our net operating loss carryforwards and certain other tax attributes may be limited.
As of December 31, 2019, we had net operating loss carryforwards of approximately $568.8 million for United States federal income tax purposes available to offset future taxable income, including $316.1 million generated after 2017, United States capital loss carryforwards of $111.6 million, and United States federal and state research and development tax credits of $9.6 million, prior to consideration of annual limitations that may be imposed under Section 382 of the Internal Revenue Code of 1986, as amended, or Section 382. Net operating loss carryforwards generated prior to 2018 begin to expire in 2022, and capital loss carryforwards will expire if unutilized by 2024. As a result of our past issuances of stock, as well as due to prior mergers and acquisitions, certain of our net operating losses have been subject to limitations pursuant to Section 382. As of December 31, 2019, we had utilized all net operating losses subject to Section 382 limitations, other than those losses inherited via acquisitions. As of December 31, 2019, approximately $42.1 million of domestic net operating losses were acquired via acquisition and are limited based on the value of the target at the time of the transaction. Future changes in stock ownership may also trigger an ownership change and, consequently, a Section 382 limitation. As of December 31, 2019, our direct foreign subsidiaries included in continuing operations had foreign loss carryforwards of approximately $72.8 million, most of which do not expire.
The Tax Cuts and Jobs Act of 2017, or Tax Act, introduced certain limitations on utilization of losses that are generated after 2017, generally limiting utilization of those losses to 80 percent of future annual taxable income. However, net operating losses generated after 2017 will generally have an indefinite carryforward period.
Risks relatedRelated to our intellectual propertyIntellectual Property
Our ability to compete may decline if we do not adequately protect our proprietary technologies or if we lose some of our intellectual property rights through costly litigation or administrative proceedings.
Our success depends in part on our ability to obtain patents and maintain adequate protection of our intellectual property in the United States and abroad for our suite of technologies and resultant products and potential products.product candidates. We have adopted a strategy of seeking patent protection in the United States and abroad with respect to certain of the technologies used in or relating to our productstechnologies and processes.product candidates. We have also in-licensed rights to additional patents and pending patent applications in the United States and abroad. We intend to continue to apply for patents relating to our technologies, methods, and products as we deem appropriate.
We have strategic positioningseek patent protection for our platform technologies with respecta focus on our product pipeline, including but not limited to our key technologies including patent portfolios directed to:(i) various switch technologies; (ii) gene delivery technologies; and (iii) our switch technology covering aspects of our gene switches,portfolio around various genetic componentry such as our RheoSwitch Therapeutic System, and gene modulation systems,specialized vectors cells and organisms containing these switches, and their use; our activator ligand technologygenetic componentry. In addition, we seek patents covering aspects of our activator ligands and their use; and our cell identification and selection technology covering aspects of our cell identification and selection platform, including our cell purification, isolation, characterization and manipulation technologies.specific collaborator's products. We have also filed counterpart patents and patent applications in other jurisdictions, including Australia, Argentina, Brazil, Canada, China, Europe, Hong Kong, India, Indonesia, Israel, Japan, Korea, Mexico, New Zealand, Philippines, Russia, Singapore, South Africa and Taiwan. In the future we may file in these or additional jurisdictions as deemed appropriate for the protection of our technologies.
The enforceability of patents, as well as the actual patent term and expiration thereof, involves complex legal and factual questions and, therefore, the extent of enforceability cannot be guaranteed. Issued patents and patents issuing from pending applications may be challenged, invalidated, or circumvented. Moreover, the United States Leahy-Smith America Invents Act, enacted in September 2011, brought significant changes to the U.S.United States patent system, which include a change to a "first to file" system from a "first to invent" system and changes to the procedures for challenging issued patents and disputing patent applications during the examination process, among other things. These changes could increase the costs and uncertainties surrounding the prosecution of our patent applications and the enforcement or defense of our patent rights. Additional uncertainty may result from legal precedent handed down by the United States Court of Appeals for the Federal Circuit and United States Supreme Court as they determine legal issues concerning the scope and construction of patent claims and inconsistent interpretation of patent laws by the lower courts. Accordingly, we cannot ensure that any of our pending patent applications will result in issued patents, or even if issued, predict the breadth of the claims upheld in our and other companies' patents. Given that the degree of future protection for our proprietary rights is uncertain, we cannot ensure that we were the first

to invent the inventions covered by our pending patent applications,applications; we were the first to file patent applications for these inventions,inventions; the patents we have obtained, particularly certain patents claiming nucleic acids, proteins, or methods, are valid and enforceable,enforceable; and the proprietary technologies we develop will be patentable.

In addition, unauthorized parties may attempt to copy or otherwise obtain and use our products or technology. Monitoring unauthorized use of our intellectual property is difficult, and we cannot be certain that the steps we have taken will prevent unauthorized use of our technologies, particularly in certain foreign countries where the local laws may not protect our proprietary rights as fully as in the United States. Moreover, third parties could practice our inventions in territories where we do not have patent protection. Such third parties may then try to import into the United States or other territories products, or information leading to potentially competing products, made using our inventions in countries where we do not have patent protection for those inventions. If competitors are able to use our technologies, our ability to compete effectively could be harmed. Moreover, others may independently develop and obtain patents for technologies that are similar to or superior to our technologies. If that happens, we may need to license these technologies, and we may not be able to obtain licenses on reasonable terms, if at all, which could harm our business.
We also rely on trade secrets to protect our technologies, especially in cases when we believe patent protection is not appropriate or obtainable. However, trade secrets are difficult to protect. While we require our employees, academic collaborators, collaborators, consultants and other contractors to enter into confidentiality agreements, we may not be able to adequately protect our trade secrets or other proprietary or licensed information. If we cannot maintain the confidentiality of our proprietary and licensed technologies and other confidential information, our ability and that of our licensor to receive patent protection and our ability to protect valuable information owned or licensed by us may be imperiled. Enforcing a claim that a third-party entity illegally obtained and is using any of our trade secrets is expensive and time consuming, and the outcome is unpredictable. Moreover, our competitors may independently develop equivalent knowledge, methods, and know-how.
Litigation or other proceedings or third-party claims of intellectual property infringement could require us to spend significant time and money and could prevent us from commercializing our technologies or impact our stock price.
Our commercial success also depends in part on not infringing patents and proprietary rights of third parties and not breaching any licenses or other agreements that we have entered into with regard to our technologies, products, and business. We cannot ensure that patents have not been issued to third parties that could block our or our collaborators' ability to obtain patents or to operate as we would like. There may be patents in some countries that, if valid, may block our ability to make, use or sell our products in those countries, or import our products into those countries, if we are unsuccessful in circumventing or acquiring the rights to these patents. There also may be claims in patent applications filed in some countries that, if granted and valid, also may block our ability to commercialize products or processes in these countries if we are unable to circumvent or license them.
The biotechnology industry is characterized by frequent and extensive litigation regarding patents and other intellectual property rights. Many companies have employed intellectual property litigation as a way to gain a competitive advantage. Our involvement in litigation, interferences, opposition proceedings or other intellectual property proceedings inside and outside of the United States, to defend our intellectual property rights or as a result of alleged infringement of the rights of others, may divert managementmanagement's time from focusing on business operations and could cause us to spend significant amounts of money. Some of our competitors may have significantly greater resources and, therefore, they are likely to be better able to sustain the cost of complex patent or intellectual property litigation than we could. The uncertainties associated with litigation could have a material adverse effect on our ability to raise the funds necessary to continue our business or to enter into additional collaborations with others. Furthermore, any potential intellectual property litigation also could force us or our collaborators to do one or more of the following:
stop selling, incorporating or using products that use the intellectual property at issue;
obtain from the third party asserting its intellectual property rights a license to sell or use the relevant technology, which license may not be available on reasonable terms, if at all; or
redesign those products or processes that use any allegedly infringing technology, or relocate the operations relating to the allegedly infringing technology to another jurisdiction, which may result in significant cost or delay to us, or whichthat could be technically infeasible.
The patent landscape in the field of synthetic biologybiotechnology is particularly complex. We are aware of U.S.United States and foreign patents and pending patent applications of third parties that cover various aspects of syntheticcell and gene biology including patents that some may

view as covering aspects of our technologies. In addition, there may be patents and patent applications in the field of which we are not aware. In many cases, the technologies we develop are early-stage technologies, and we and our collaborators are just beginning the process of designing and developing products using these technologies. Although we will seek to avoid pursuing the development of products that may infringe any patent claims that we believe to be valid and enforceable, we and our

collaborators may fail to do so. Moreover, given the breadth and number of claims in patents and pending patent applications in the field of synthetic biology and the complexities and uncertainties associated with them, third parties may allege that we or our collaborators are infringing upon patent claims even if we do not believe such claims to be valid and enforceable.
Except for claims we believe will not be material to our financial results, no third party has asserted a claim of infringement against us. Others may hold proprietary rights that could prevent products using our technologies from being marketed. Any patent-related legal action against persons who license our technologies our collaborators or us claiming damages and seeking to enjoin commercial activities relating to products using our technologies or our processes could subject us to potential liability for damages and require our licensorlicensee or us to obtain a license to continue to manufacture or market such products or any future product candidates that use our technologies. We cannot predict whether we or our licensor would prevail in any such actions or that any license required under any of these patents would be made available on commercially acceptable terms, if at all. In addition, we cannot be sure that any such products or any future product candidates or processes could be redesigned to avoid infringement, if necessary. Accordingly, an adverse determination in a judicial or administrative proceeding, or the failure to obtain necessary licenses, could prevent us or our collaboratorslicensees from developing and commercializing products using our technologies, which could harm our business, financial condition, and operating results.
If any of our competitors have filed patent applications or obtained patents that claim inventions also claimed by us, we may have to participate in interference proceedings declared by the United States Patent and Trademark Office, or the USPTO to determine priority of invention and, thus, the right to the patents for these inventions in the United States. These proceedings could result in substantial cost to us even if the outcome is favorable. Even if successful, an interference may result in loss of certain of our important claims.
Any litigation or proceedings could divert our management's time and efforts. Even unsuccessful claims could result in significant legal fees and other expenses, diversion of managementmanagement's time, and disruption in our business. Uncertainties resulting from initiation and continuation of any patent or related litigation could harm our ability to compete.
Obtaining and maintaining our patent protection depends on compliance with various procedural, document submission, fee payment, and other requirements imposed by governmental patent agencies, and our patent protection could be reduced or eliminated for non-compliance with these requirements.
The USPTO and various foreign governmental patent agencies require compliance with a number of procedural, documentary, fee payment, and other provisions during the patent process. Given the size of our intellectual property portfolio, compliance with these provisions involves significant time and expense. There are situations in which noncompliance can result in abandonment or lapse of a patent or patent application, resulting in partial or complete loss of patent rights in the relevant jurisdiction. In such an event, competitors might be able to enter the market earlier than would otherwise have been the case.
If we do not obtain additional protection under the Hatch-Waxman Amendments, other United States legislation, and similar foreign legislation by extending the patent terms and obtaining dataregulatory exclusivity for our technologies, our business may be materially harmed.
Depending upon the timing, duration, and specifics of FDA marketing approval of products using our technologies, one or more of the U.S.United States patents we own or license may be eligible for limited patent term restoration under the Drug Price Competition and Patent Term Restoration Act of 1984, referred to as the Hatch-Waxman Amendments. The Hatch-Waxman Amendments permit a patent restoration term of up to five years as compensation for patent term lost during product development and the FDA regulatory review process. However, we may not be granted an extension because of, for example, failing to apply within applicable deadlines, failing to apply prior to expiration of relevant patents or otherwise failing to satisfy applicable requirements. Moreover, the applicable time period or the scope of patent protection afforded could be less than we request. If we are unable to obtain patent term extension or restoration or the term of any such extension is less than we request, our competitors may obtain approval of competing products following our patent expiration, and our ability to generate revenues could be materially adversely affected.
Some of our products may not have patent protection and, as a result, potential competitors face fewer barriers in introducing competing products. We may rely on trade secrets and other unpatented proprietary information to protect our commercial position with respect to such products, which we may be unable to do. In some instances, we may also rely on regulatory exclusivity, including orphan drug exclusivity, to protect our products from competition. Some of our or our collaborators' products may be subject to the BPCIA, which may provide those products exclusivity that prevents approval of a biosimilar product that references the data in one of our BLAs in the United States for 12 years after approval. However, the BPCIA and other regulatory exclusivity frameworks may evolve over time based on statutory changes, FDA issuance of new regulations, and judicial decisions. In addition, the BPCIA exclusivity period does not prevent another company from independently developing a product that is highly similar to an approved product, generating all the data necessary for a full BLA and seeking approval.

Enforcing our intellectual property rights may be difficult and unpredictable.
If we were to initiate legal proceedings against a third party to enforce a patent claiming one of our technologies, the defendant could counterclaim that our patent is invalid and/or unenforceable or assert that the patent does not cover its manufacturing processes, manufacturing components or products. Proving patent infringement may be difficult, especially where it is possible

to manufacture a product by multiple processes. Furthermore, in patent litigation in the United States, defendant counterclaims alleging both invalidity and unenforceability are commonplace. Although we believe that we have conducted our patent prosecution in accordance with the duty of candor and in good faith, the outcome following legal assertions of invalidity and unenforceability during patent litigation is unpredictable. With respect to the validity of our patent rights, we cannot be certain, for example, that there is no invalidating prior art, of which we and the patent examiner were unaware during prosecution. If a defendant were to prevail on a legal assertion of invalidity and/or unenforceability, we would not be able to exclude others from practicing the inventions claimed therein. Such a loss of patent protection could have a material adverse impact on our business. Even if our patent rights are found to be valid and enforceable, patent claims that survive litigation may not cover commercially valuable products or prevent competitors from importing or marketing products similar to our own, or using manufacturing processes or manufacturing components similar to those used to produce the products using our technologies.
Although we believe we have obtained assignments of patent rights from all inventors, if an inventor did not adequately assign their patent rights to us, a third party could obtain a license to the patent from such inventor. This could preclude us from enforcing the patent against such third party.
We may not be able to enforce our intellectual property rights throughout the world.
The laws of some foreign countries do not protect intellectual property rights to the same extent as the laws of the United States. Many companies have encountered significant problems in protecting and defending intellectual property rights in certain foreign jurisdictions. The legal systems of certain countries, particularly certain developing countries, do not favor the enforcement of patents and other intellectual property protection, particularly those relating to synthetic biology. This could make it difficult for us to stop the infringement of our patents or misappropriation of our other intellectual property rights. Proceedings to enforce our patent rights in foreign jurisdictions could result in substantial costs and divert our efforts and attention from other aspects of our business. Accordingly, our efforts to protect our intellectual property rights in such countries may be inadequate.
If our technologies or products using our technologies are stolen, misappropriated, or reverse engineered, others could use the technologies to produce competing technologies or products.
Third parties, including our collaborators, contract manufacturers, contractors and others involved in our business, often have access to our technologies. If our technologies, or products using our technologies, were stolen, misappropriated, or reverse engineered, they could be used by other parties that may be able to reproduce our technologies or products using our technologies, for their own commercial gain. If this were to occur, it would be difficult for us to challenge this type of use, especially in countries with limited intellectual property protection.
Confidentiality agreements with employees and others may not adequately prevent disclosures of trade secrets and other proprietary information.
We have taken measures to protect our trade secrets and proprietary information, but these measures may not be effective. We require our new employees and consultants to execute confidentiality agreements upon the commencement of an employment or consulting arrangement with us. These agreements generally require that all confidential information developed by the individual or made known to the individual by us during the course of the individual's relationship with us be kept confidential and not disclosed to third parties. These agreements also generally provide that inventions conceived by the individual in the course of rendering services to us shall be our exclusive property. Nevertheless, our proprietary information may be disclosed, third parties could reverse engineer our technologies or products using our technologies, and others may independently develop substantially equivalent proprietary information and techniques or otherwise gain access to our trade secrets. Costly and time-consuming litigation could be necessary to enforce and determine the scope of our proprietary rights, and failure to obtain or maintain trade secret protection could adversely affect our competitive business position.
Risks relatedRelated to our Common Stock
Our quarterly and annual operating results may fluctuate in the future. As a result, we may fail to meet or exceed the expectations of research analysts or investors, which could cause our stock price to decline.
Our financial condition and operating results have varied significantly in the past and may continue to fluctuate from quarter to

quarter and year to year in the future due to a variety of factors, many of which are beyond our control. Factors relating to our business that may contribute to these fluctuations include the following factors, as well as other factors described elsewhere in this Annual Report:
our ability to achieve or maintain profitability;
the outcomes of our research programs, clinical trials, or other product development and approval processes;
our ability to develop and successfully commercialize our products;
the timing, receipt, and amount of any payments received in connection with upfront, milestone, and sale and royalty payments, if any;
our ability to successfully scale up production of our commercial products and customer acceptance thereof;
our ability to enter into strategic transactions;
our ability to develop and maintain our technologies;
our ability to manage our growth;
risks associated with the international aspects of our business;
our ability to accurately report our financial results in a timely manner;
our dependence on, and the need to attract and retain, key management, and other personnel;
our ability to obtain, protect and enforce our intellectual property rights;
our ability to prevent the theft or misappropriation of our intellectual property, know-how or technologies;
the costs associated with legal activities, including litigation, arising in the course of our business activities and our ability to prevail in any such legal disputes;
potential advantages that our competitors and potential competitors may have in securing funding or developing competing technologies or products;
our ability to obtain additional capital that may be necessary to expand our business;
business interruptions such as power outages and other natural disasters;
our ability to integrate any businesses or technologies we may acquire with our business;
negative public opinion and increased regulatory scrutiny of gene and cell therapies;
the impact of new accounting pronouncements on our current and future operating results;
our ability to use our net operating loss carryforwards to offset future taxable income; and
the results of our consolidated subsidiaries.
Due to the various factors mentioned above, and others, the results of any prior quarterly or annual periods should not be relied upon as indications of our future operating performance.
Our stock price is volatile and purchasers of our common stock could incur substantial losses.
Our stock price has been, and is likely to continue to be, volatile. The market price of our common stock could fluctuate significantly for many reasons, including in response to the risks described in this "Risk Factors" section, or for reasons unrelated to our operations, such as reports by media or industry analysts, investor perceptions or negative announcements by our collaborators

regarding their own performance, as well as industry conditions and general financial, economic and political instability. From January 1, 2018 through February 15, 2020, our common stock has traded as high as $20.16 per share and as low as $3.85 per share. The stock market in general, as well as the market for biopharmaceutical companies in particular, has experienced extreme volatility that has often been unrelated to the operating performance of particular companies. The market price of our common stock may be influenced by many factors, including, among others:
announcements of acquisitions, collaborations, financings, divestitures, or other transactions by us;
public concern as to the safety of our products;
termination or delay of a development program;
the recruitment or departure of key personnel; and
the other factors described in this "Risk Factors" section.
Additionally, we have historically, and may from time to time in the future, own equity interests in our collaborators. Owning equity in our collaborators increases our exposure to the risks of our collaborators' businesses beyond the products of those collaborations. Any equity ownership in our collaborators exposes us to volatility and the potential for negative returns. We may have restrictions on resale and/or limited markets to sell our equity ownership. If our equity position is a minority position, we are exposed to further risk as we will not be able to exert control over the companies in which we hold securities.
We do not anticipate paying cash dividends, and accordingly, shareholders should rely on stock appreciation for return on their investment.
We have never declared or paid cash dividends on our capital stock. We do not anticipate paying cash dividends in the future and intend to retain all of our future earnings, if any, to finance the operations, development, and growth of our business. As a result, appreciation of the price of our common stock, which may never occur, will provide a return to shareholders. Investors seeking cash dividends should not invest in our common stock. We have on two occasions distributed equity securities to our shareholders as a special stock dividend: 17,830,305 shares of ZIOPHARM Oncology, Inc., or ZIOPHARM, common stock were distributed in June 2015 and

1,776,557 shares of AquaBountyour former subsidiary, AquaBounty's, common stock were distributed in January 2017. However, it is possible that we may never declare a special dividend again, and shareholders should not rely upon potential future special dividends as a source of return on their investment.
Our stock price is volatile and purchasers of our common stock could incur substantial losses.
Our stock price has been, and is likely to continue to be, volatile. The market price of our common stock could fluctuate significantly for many reasons, including in response to the risks described in this "Risk Factors" section, or for reasons unrelated to our operations, such as reports by industry analysts, investor perceptions or negative announcements by our collaborators regarding their own performance, as well as industry conditions and general financial, economic and political instability. From January 1, 2016 through February 15, 2018, our common stock has traded as high as $40.24 per share and as low as $10.26 per share. The stock market in general as well as the market for biopharmaceutical companies in particular has experienced extreme volatility that has often been unrelated to the operating performance of particular companies. The market price of our common stock may be influenced by many factors, including, among others:
announcements of acquisitions, collaborations, financings or other transactions by us;
public concern as to the safety of our products;
termination or delay of a development program;
the recruitment or departure of key personnel; and
the other factors described in this "Risk Factors" section.
If securities or industry analysts do not publish research or reports, or publish inaccurate or unfavorable research or reports about our business, our share price and trading volume could decline.
The trading market for our shares of common stock depends, in part, on the research and reports that securities or industry analysts publish about us or our business. We do not have any control over these analysts. If securities or industry analysts do not continue to cover us, the trading price for our shares of common stock may be negatively impacted. If one or more of the analysts who covers us downgrades our shares of common stock, changes their opinion of our shares or publishes inaccurate or unfavorable research about our business, our share price would likely decline. If one or more of these analysts ceases coverage of us or fails to publish reports on us regularly, demand for our shares of common stock could decrease and we could lose visibility in the financial markets, which could cause our share price and trading volume to decline.
The issuance of our common stock pursuant to a share lending agreement, including sales of the shares that we lend, and other market activity related to the share lending agreement may lower the market price of our common stock.
In connection with our offering of the Convertible Notes in July 2018, we entered into a share lending agreement with J.P. Morgan Securities LLC (that we refer to when acting in this capacity as the "share borrower"), the underwriter for our offering, pursuant to which we agreed to lend up to 7,479,431 shares of our common stock to the share borrower.
We were informed by the share borrower that it or one of its affiliates intended to use the short position created by the share loan and the concurrent short sales of the borrowed shares to facilitate transactions by which investors in the Convertible Notes, or the Convertible Notes Investors, hedge their investments through short sales or privately negotiated derivatives transactions.
The existence of the share lending agreement in connection with the offering of the borrowed shares, the short sales of our common stock effected in connection with the sale of the Convertible Notes and the related derivatives transactions, or any unwind of such short sales or derivatives transactions, could cause the market price of our common stock to be lower over the

term of the share lending agreement than it would have been had we not entered into that agreement, due to the effect of the increase in the number of outstanding shares of our common stock or otherwise. For example, in connection with any cash settlement of any such derivative transaction, the share borrower or its affiliates may purchase shares of our common stock and the Convertible Notes Investors may sell shares of our common stock, which could temporarily increase, temporarily delay a decline in, or temporarily decrease, the market price of our common stock. The market price of our common stock could be further negatively affected by these or other short sales of our common stock, including other sales by the Convertible Notes Investors hedging their investment therein.
Adjustments by the Convertible Notes Investors of their hedging positions in our common stock and the expectation thereof may have a negative effect on the market price of our common stock.
The borrowed shares are used by the Convertible Notes Investors to establish hedged positions with respect to our common stock through short sale transactions or privately negotiated derivative transactions. The number of borrowed shares may be more or less than the number of shares that will be needed in such hedging transactions. Any buying or selling of shares of our common stock by those Convertible Notes Investors to adjust their hedging positions may affect the market price of our common stock.
In addition, the existence of the Convertible Notes may also encourage short selling by market participants because the conversion of the Convertible Notes could depress our common stock price. The price of our common stock could be affected by possible sales of our common stock by the Convertible Notes Investors who view the Convertible Notes as a more attractive means of equity participation in us and by hedging or arbitrage trading activity that we expect to occur involving our common stock. This hedging or arbitrage trading activity could, in turn, affect the market price of the Convertible Notes.
Changes in the accounting guidelines relating to the borrowed shares or our inability to classify the borrowed shares as equity could decrease our reported earnings per share and potentially our common stock price.
Because the borrowed shares (or identical shares) must be returned to us when the share lending agreement terminates pursuant to its terms (or earlier in certain circumstances), we believe that under generally accepted accounting principles in the United States, or U.S. GAAP, as presently in effect, assuming the borrowed shares issued pursuant to the share lending agreement are classified as equity under U.S. GAAP, the borrowed shares will not be considered outstanding for the purpose of computing and reporting our earnings per share. If accounting guidelines were to change in the future or we are unable to classify the borrowed shares issued pursuant to the share lending agreement as equity, we may be required to treat the borrowed shares as outstanding for purposes of computing earnings per share, our reported earnings per share would be reduced and our common stock price could decrease, possibly significantly.
If our executive officers and directors choose to act together, they may be able to controlsignificantly influence our management and operations, acting in their own best interests and not necessarily those of other shareholders.
As of December 31, 2017,2019, our executive officers and directors owned approximately 5148 percent of our voting common stock, including shares subject to outstanding optionsoptions; restricted stock units, or RSUs; and warrants. As a result, these shareholders, acting together, would be able to significantly influence all matters requiring approval by our shareholders, including the election of directors and the approval of mergers or other business combination transactions, as well as our management and affairs. The interests of this group of shareholders may not always coincide with the interests of other shareholders, and they may act in a manner that advances their best interests and not necessarily those of other shareholders. This concentration of ownership control may:
delay, defer, or prevent a change in control;
entrench our management and/or the board of directors; or
impede a merger, consolidation, takeover, or other business combination involving us that other shareholders may desire.
We have engaged in transactions with companies in which Randal J. Kirk, our Chief Executive Officer,Chairman, and his affiliates have an interest.
We have engaged in a variety of transactions, including ECCs,collaborations and our sale of our bioengineering assets to TS Biotechnology, with companies in which Mr. Kirk and affiliates of Mr. Kirk have a direct or indirect interest. See "Notes to the Consolidated Financial Statements - Notes 1, 3, 4, 5, 6, 14, 15, 18, and 22 to our consolidated financial statements23" appearing elsewhere in this Annual Report for a

discussion of such transactions. For example, we are party to a services agreement with Third Security,

or Services Agreement with Third Security, for which Third Security provides certain services to us in return for a monthly fee of shares of our common stock. Mr. Kirk serves as the Senior Managing Director and Chief Executive Officer of Third Security and owns 100 percent of the equity interests of Third Security. We believe that each of these transactions was on terms no less favorable to us than terms we could have obtained from unaffiliated third parties, and each of these transactions was approved by at least a majority of the disinterested members of the audit committee of our board of directors. In addition, subsequent to our consummation of the ECCs with certain related parties, Mr. Kirk and his affiliates invested in these companies. Furthermore, as we execute on these ECCs or JVstransactions going forward, a conflict may arise between our interests and those of Mr. Kirk and his affiliates.
As of December 31, 2017,2019, Randal J. Kirk controlled approximately 4746 percent of our common stock and ismay be able to control or significantly influence shareholder votes and other corporate actions, which may result in Mr. Kirk taking actions contrary to the desires of our other shareholders.
We have historically been controlled, managed, and principally funded by Randal J. Kirk, our Chairman andformer Chief Executive Officer and current Executive Chairman, and affiliates of Mr. Kirk, including Third Security. As of December 31, 2017,2019, while Mr. Kirk is no longer our Chief Executive Officer, he is our current Executive Chairman, and Mr. Kirk and shareholders affiliated with him beneficially owned approximately 4746 percent of our voting stock, including 1,207,980 shares of our common stock purchased by an affiliate ofstock. Mr. Kirk in a private placement which closed in December 2017. Affiliates of Mr. Kirk purchased 1,000,000 shares of our common stock as part of our public offering which closed in January 2018. In addition, pursuant to a Preferred Stock Equity Facility, or Preferred Stock Facility, we may from time to time at our sole and exclusive option, issue and sell to an affiliate of Mr. Kirk up to 1,000,000 shares of our Series A Preferred Stock, which will be convertible into shares of our common stock upon the approval of our shareholders, subject to regulatory approval, at a conversion rate based on future market prices. Mr. Kirk is able to control or significantly influence all matters requiring approval by our shareholders, including the election of directors and the approval of mergers or other business combination transactions.transactions, and he may be able to exert significant influence on other corporate actions as a result of his role as our Executive Chairman and status as a significant shareholder. The interests of Mr. Kirk may not always coincide with the interests of other shareholders, and he may take actions that advance his personal interests and are contrary to the desires of our other shareholders.
In connection with the Preferred Stock Facility, we have filed an amendment to our articlesSales of incorporation to set the designationsa substantial number of our new Series A Preferred Stock with terms that are preferential to thoseshares of our common stock.
Our articles of incorporation authorize us to issue, without the approval of our shareholders, one or more classes or series of preferred stock having such designations, preferences, limitations and relative rights, including preferences over our common stock respecting dividends and distributions, as our board of directors may determine. In connection with our Preferred Stock Facility, we filed an amendment to our articles of incorporation to set the designations of our Series A Preferred Stock, which, if and when issued, will have certain preferences over our common stock, including accrued dividends of 8 percent per annum and, subject to limited exceptions, seniority to our common stock with respect to the rights to the payment of dividends and on parity with our common stock with respect to the distribution of assets in the event of a liquidation, dissolution, or winding up or change of control of the Company.
After December 31, 2020, the holder of the Series A Preferred Stock, if and when issued, may require us to redeempublic market could occur at any or all of the outstanding Series A Preferred Stock.
If we are unable to obtain the approval of our shareholders to convert any outstanding shares of Series A Preferred Stock prior to December 31, 2020, the holder of the Series A Preferred Stock may require us to redeem any or all of the outstanding shares of Series A Preferred Stock at the issue price of $100 per share plus any accumulated but unpaid dividends thereon to, but not including, the redemption date, subject to adjustments. Any such redemption of our Series A Preferred Stock in cash would reduce the cash that we have available to invest in our business. In the event that we have issued Series A Preferred Stock and redemption is required, there can be no assurance that we will have enough cash at such time to redeem the outstanding shares.
A significant portion of our total outstanding shares of common stock is restricted from immediate resale but may be sold into the market in the near future.time. This could cause the market price of our common stock to drop significantly, even if our business is doing well.
Sales of a substantial number of shares of our common stock in the public market could occur at any time. These sales, or the perception in the market that the holders of a large number of shares of common stock intend to sell shares, could reduce the market price of our common stock. If Mr. Kirk or any of his affiliates were to sell a substantial portion of the shares they hold, it could cause our stock price to decline.
In addition, as of December 31, 2017,2019, there were 11,382,7479,022,282 shares subject to outstanding options that will become eligible for sale in the public market to the extent permitted by any applicable vesting requirements, lock-up agreements and Rules 144 and

701 under the Securities Act of 1933, as amended. As of December 31, 2019, there were 1,781,982 RSUs outstanding. Shares issuable upon the exercise of such options and upon vesting of the RSUs can be freely sold in the public market upon issuance and once vested. Additionally, as of December 31, 2019, we have 4,747,496had 8,991,369 of shares available for grant under the 2013 Omnibus Incentive Plan.Plan and 4,087,444 shares available for grant under the 2019 Incentive Plan for Non-Employee Service Providers.
Our articles of incorporation authorize us to issue preferred stock with terms that are preferential to those of our common stock.
Our articles of incorporation authorize us to issue, without the approval of our shareholders, one or more classes or series of preferred stock having such designations, preferences, limitations and relative rights, including preferences over our common stock respecting dividends and distributions, as our board of directors may determine. For example, in connection with the formation of a Preferred Stock Equity Facility, which was subsequently terminated in June 2018, we filed an amendment to our articles of incorporation to set the designations of our Series A Preferred Stock. Effective February 1, 2020, the Series A Preferred Stock designations was terminated. In the future, we may enter into similar facilities or issue preferred stock that has greater rights, preferences, and privileges than our common stock.
We are subject to anti-takeover provisions in our articles of incorporation and bylaws and under Virginia law that could delay or prevent an acquisition of our Company, even if the acquisition would be beneficial to our shareholders.
Certain provisions of Virginia law, the commonwealth in which we are incorporated, and our articles of incorporation and bylaws could hamper a third party's acquisition of us, or discourage a third party from attempting to acquire control of us. These provisions include:provisions:
include a provision allowing our board of directors to issue preferred stock with rights senior to those of the common stock without any vote or action by the holders of our common stock. The issuance of preferred stock could adversely affect the rights and powers, including voting rights, of the holders of common stock;
establish advance notice requirements for nominations for election to the board of directors or for proposing matters

that can be acted on at shareholder meetings;
provide for the inability of shareholders to convene a shareholders' meeting without the support of shareholders owning together 25 percent of our common stock;
provide for the application of Virginia law prohibiting us from entering into a business combination with the beneficial owner of 10 percent or more of our outstanding voting stock for a period of three years after the 10 percent or greater owner first reached that level of stock ownership, unless we meet certain criteria;
allow the authorized number of our directors to be changed only by resolution of our board of directors;
limit the manner in which shareholders can remove directors from the board;
require that shareholder actions must be effected at a duly called shareholder meeting and prohibit actions by our shareholders by written consent; and
limit who may call a special meeting of shareholders.
These provisions also could limit the price that certain investors might be willing to pay in the future for shares of our common stock. In addition, these provisions make it more difficult for our shareholders, should they choose to do so, to remove our board of directors or management.
If we fail to maintain an effective system of internal control over financial reporting, we may not be able to accurately report our financial results or prevent fraud. As a result, shareholders could lose confidence in our financial and other public reporting, which would harm our business and the trading price of our common stock.
Effective internal controls over financial reporting are necessary for us to provide reliable financial reports and, together with adequate disclosure controls and procedures, are designed to prevent fraud. Any failure to implement required new or improved controls, or difficulties encountered in their implementation, could cause us to fail to meet our reporting obligations. In addition, any testing by us conducted in connection with Section 404 of the Sarbanes-Oxley Act, or any subsequent testing by our independent registered public accounting firm, may reveal deficiencies in our internal controls over financial reporting that are deemed to be material weaknesses or that may require prospective or retroactive changes to our financial statements or identify other areas for further attention or improvement. Inferior internal controls could also cause investors to lose confidence in our reported financial information, which could have a negative effect on the trading price of our common stock.
Item 1B.Unresolved Staff Comments
Not applicable.

Item 2.Properties
We establish the geographic locations of our research and development operations based on proximity to the relevant market expertise and access to available talent pools. The following table shows information about our primary lab operations used in continuing operations as of December 31, 2017:2019:
Location Square Footage
Germantown, Maryland (PGEN Therapeutics segment) 56,25861,048

South San Francisco, California (MBP Titan segment) 55,609
Davis, California32,867
San Diego, California23,409
Budapest, Hungary18,367

Ghent, Belgium (ActoBio segment) 14,198
Campinas, Brazil12,530
Oxford, England10,000

Our primary domestic production facilities, for our Trans Ova segment, are located in Sioux Center, Iowa, and include approximately 274,000281,000 square feet of production and office facilities and approximately 380360 acres of land. The land and production facilities are primarily used for embryo transfer and in vitro fertilization processes, as well as housing livestock used in such processes. We also lease or own regional production facilities and land in California, Maryland, Missouri, New York, Oklahoma, South Dakota, Texas, and Washington for these purposes. Additionally, we have commenced initial scale up of commercial production of our non-browning apples in Washington, our AAS salmon in Canada, and our GE mosquitoes in Piracicaba, Brazil, in anticipation of generating future revenues from each of these product lines.

We lease an additional 40,00031,000 square feet of administrative offices in South San Francisco, California; West Palm Beach, Florida; Germantown, Maryland; and Blacksburg, Virginia. The terms of our leases range from one to ten years. See also "Management's Discussion and Analysis of Financial Condition and Results of Operations — Contractual Obligations and Commitments."Commitments" appearing elsewhere in this Annual Report.
Item 3.Legal Proceedings
We may become subject to other claims, assessments, and governmental investigations from time to time in the ordinary course of business. Such matters are involved in litigation or legalsubject to many uncertainties and outcomes are not predictable with assurance. We accrue liabilities for such matters incidental to our business activities. While the outcome of these matters cannotwhen it is probable that future expenditures will be predicted with certainty, wemade and such expenditures can be reasonably estimated. We do not currently expectbelieve that any of thesesuch matters, individually or in the aggregate, will have a material adverse effect on our business, or financial position. However, should one or more of these matters be resolved in a manner adverse to our current expectation, the effect on ourcondition, results of operations, for a particular fiscal reporting period could be material.
In May 2016, two putative shareholder class action lawsuits, captioned Hoffman v. Intrexon Corporation et al. and Gibrall v. Intrexon Corporation et al., were filed in the U.S. District Court for the Northern District of California on behalf of purchasers of our common stock between May 12, 2015 and April 20, 2016, or the Class Period. In July 2016, the court consolidated the lawsuits and appointed a lead plaintiff. The consolidated amended complaint names as defendants us and certain of our current and former officers, or the Defendants. It alleges, among other things, that the Defendants made materially false and/or misleading statements during the Class Period with respect to our business, operations, and prospects in violation of Sections 10(b) and 20(a) of the Securities Exchange Act of 1934, as amended, or Exchange Act. The plaintiffs' claims are based in part upon allegations in a report published in April 2016 on the Seeking Alpha financial blog. The plaintiffs seek compensatory damages, interest and an award of reasonable attorneys' fees and costs. The Defendants moved to dismiss the case. On February 24, 2017, the court granted the Defendants' motion to dismiss the lawsuit on the grounds that the plaintiff failed to state a claim, while granting the plaintiff leave to amend. The plaintiff subsequently notified the court that it would seek to appeal the court's ruling rather than amend its complaint. On April 26, 2017, the court entered final judgment in the case. Notice of appeal was filed by the plaintiff on May 26, 2017. On October 26, 2017, the plaintiff filed a voluntary motion to dismiss the case, which the court of appeals granted on November 1, 2017.
In July 2016, a putative shareholder derivative action captioned Basile v. Kirk et al. was filed in the Circuit Court of Fairfax County, Virginia, against certain of our directors, our CEO, and Third Security, and naming us as a nominal defendant. The complaint alleges causes of action for breaches of fiduciary duty and unjust enrichment relatingcash flows. See "Notes to the entry by us into the Services Agreement with Third Security. The plaintiff seeks, among other things, damages in an unspecified amount, disgorgement of improper benefits, appropriate equitable relief, and an award of attorney fees and other costs and expenses.

The complaint is substantially similar to two separate demands made by shareholders concerning the Services Agreement and Mr. Kirk's compensation. Our board of directors appointed a Special Litigation Committee, or the SLC, consisting of independent directors to investigate the claims and allegations made in the derivative action and in the two shareholder demands and to decide on our behalf whether the claims and allegations should be pursued. The Basile case was stayed pending the report of the SLC. In November 2016, the SLC completed its review and evaluation and unanimously determined that the claims were without merit because the compensation arrangements were the result of an informed and disinterested decision-making process and were fair to the Company, and that prosecution of the asserted claims was not in our or our shareholders' best interest. Based upon the determination of the SLC, on February 24, 2017 we moved to dismiss the court action pursuant to Virginia statute. On June 8, 2017, the court granted our motion to dismiss while granting the plaintiff leave to amend. On August 30, 2017, the plaintiff filed a consent motion for leave to amend along with the amended shareholder derivative complaint. We moved to dismiss the amended complaint on October 6, 2017. On January 25, 2018, the court granted our motion and dismissed the plaintiff's amended complaint with prejudice.
In addition to the shareholder demands described above, in June and July 2016, two shareholders made separate demands under Virginia law demanding that we file suit against certain of our current officers and directors for alleged breaches of fiduciary duty and other claims. The demands were based upon and asserted the allegations previously published in April 2016 in the Seeking Alpha financial blog. In July 2016, our board of directors authorized the SLC to expand its review to include all such allegations. In February 2017, the SLC completed its review and evaluation and unanimously determined that there was no basis for any of the allegations, that our officers and directors did not breach their fiduciary duties or any other applicable law, and that prosecution of the asserted claims was not in our or our shareholders' best interest. Following the SLC's determination, in March 2017, one of the putative shareholders filed a derivative complaint captioned Luger v. Kirk et al. in the Circuit Court of Fairfax County, Virginia. We are a nominal defendantConsolidated Financial Statements - Note 17" appearing elsewhere in this action, and other defendants include certainAnnual Report for further discussion of our directors, our CEO, and Third Security. The complaint alleges causes of action for breaches of fiduciary duty and unjust enrichment relating to our entry into the Services Agreement with Third Security, our CEO's compensation, and certain allegations contained in the April 2016 Seeking Alpha financial blog piece. Based on the determination of the SLC and a review of applicable law, we intend to defend the lawsuit vigorously; however, there can be no assurance regarding the ultimate outcome of this case.
The Division of Enforcement of the SEC is conducting an investigation which we believe concerns certain issues raised by the foregoingongoing legal matters. We have met with the SEC staff and are voluntarily cooperating with their investigation. Our board of directors has authorized the SLC to monitor our interaction with the SEC staff.
Item 4.Mine Safety Disclosures
Not applicable.

PART II
Item 5.Market for Registrant's Common Equity, Related Stockholder Matters and Issuer Purchases of Equity Securities
Market Information and Holders of Record
Our common stock trades on the New York Stock Exchange (NYSE)Nasdaq Global Select Market, or Nasdaq, under the symbol "XON""PGEN". The following table sets forth for the periods indicated the high and low sales prices per share of our common stock as reported on the NYSE:
 High Low
Year Ended December 31, 2017   
Fourth Quarter$20.49
 $10.26
Third Quarter25.30
 17.04
Second Quarter26.99
 18.41
First Quarter26.95
 18.55
Year Ended December 31, 2016   
Fourth Quarter$32.90
 $24.01
Third Quarter30.56
 22.88
Second Quarter38.60
 22.81
First Quarter40.24
 18.52
As of February 15, 2018,2020, we had 283292 holders of record of our common stock. The actual number of shareholders is greater than this number of record holders and includes shareholders who are beneficial owners but whose shares are held in street name by brokers and other nominees. This number of holders of record also does not include shareholders whose shares may be held in trust by other entities.
Dividends
We have never declared or paid any cash dividends on our capital stock. We currently intend to retain earnings, if any, to finance the growth and development of our business. Webusiness and do not expect to pay any cash dividends on our common stock in the foreseeable future. We have on two occasions distributed equity securities of other companies we owned to our shareholders as a special stock dividend: 17,830,305 shares of ZIOPHARM common stock were distributed in June 2015 and 1,776,557 shares of AquaBounty common stock were distributed in January 2017. Payment of future dividends, if any, will be at the discretion of our board of directors and will depend on our financial condition, results of operations, capital requirements, restrictions contained in current or future financing instruments, provisions of applicable law and other factors that our board of directors deems relevant.
Securities Authorized for Issuance Under Equity Compensation Plans
Information about our equity compensation plans is incorporated herein by reference to Item 12 of Part III of this Annual Report.
Stock Performance Graph
This performance graph shall not be deemed "soliciting material" or to be "filed" with the SEC for purposes of Section 18 of the Securities Exchange Act of 1934, or otherwise subject to the liabilities under that Section, and shall not be deemed to be incorporated by reference into any filing of Intrexon CorporationPrecigen, Inc. under the Securities Act of 1933, as amended, or the Exchange Act.
The following graph shows a comparison from August 8, 2013 (the date our common stock commenced trading on the NYSE)December 31, 2014 through December 31, 20172019 of the cumulative total return for our common stock,stock; the Standard & Poor's 500 Stock Index, (Sor the S&P 500 Index)Index; and the NYSE MKT ARCANasdaq Biotechnology Index. The graph assumes that $100 was invested at the market close on August 8, 2013December 31, 2014 in the common stock of Intrexon Corporation,Precigen, Inc., the S&P 500 Index, and the NYSE MKT ARCANasdaq Biotechnology Index, and data for the S&P 500 Index and the NYSE MKT ARCANasdaq Biotechnology Index assumes reinvestments of dividends. The stock price performance of the following graph is not necessarily indicative of future stock price performance.

pgen-2014123_chartx58805a05.jpg
Company / Index 
Base
Period
8/8/2013
 9/30/2013 12/31/2013 3/31/2014 6/30/2014 9/30/2014 12/31/2014 Base Period 12/31/2014 3/31/2015 6/30/2015 9/30/2015 12/31/2015
Intrexon Corporation $100.00
 $95.79
 $96.24
 $106.31
 $101.62
 $75.13
 $111.32
Precigen, Inc. $100.00
 $164.80
 $177.87
 $115.91
 $109.89
S&P 500 Index 100.00
 99.38
 109.82
 111.81
 117.66
 118.99
 124.86
 100.00
 100.95
 101.23
 94.71
 101.38
NYSE MKT ARCA Biotechnology Index 100.00
 103.12
 110.29
 122.45
 131.51
 146.60
 163.14
Nasdaq Biotechnology Index
 100.00
 113.27
 121.79
 99.96
 111.77
Company / Index3/31/2015 6/30/2015 9/30/2015 12/31/2015 3/31/2016 6/30/2016 9/30/2016 12/31/20163/31/2016 6/30/2016 9/30/2016 12/31/2016 3/31/2017 6/30/2017 9/30/2017 12/31/2017
Intrexon Corporation$183.46
 $198.01
 $129.03
 $122.34
 $137.51
 $99.86
 $113.69
 $98.60
Precigen, Inc.$123.53
 $89.70
 $102.13
 $88.57
 $72.98
 $88.70
 $70.00
 $42.42
S&P 500 Index126.04
 126.39
 118.26
 126.59
 128.29
 131.44
 136.50
 141.72
102.75
 105.27
 109.33
 113.51
 120.40
 124.12
 129.69
 138.30
NYSE MKT ARCA Biotechnology Index189.33
 198.84
 162.87
 181.72
 141.07
 144.32
 160.93
 147.87
Nasdaq Biotechnology Index86.19
 85.22
 95.87
 87.91
 97.43
 103.18
 111.16
 106.95
Company / Index3/31/2017 6/30/2017 9/30/2017 12/31/2017 3/31/2018 6/30/2018 9/30/2018 12/31/2018 3/31/2019 6/30/2019 9/30/2019 12/31/2019
Intrexon Corporation$81.24
 $98.74
 $77.92
 $47.22
 
Precigen, Inc.$56.45
 $51.33
 $63.41
 $24.08
 $19.37
 $28.20
 $21.06
 $20.18
S&P 500 Index150.33
 154.98
 161.93
 172.68
 137.25
 141.97
 152.91
 132.24
 150.29
 156.76
 159.42
 173.88
NYSE MKT ARCA Biotechnology Index171.56
 185.84
 202.52
 203.59
 
Nasdaq Biotechnology Index107.01
 110.31
 122.66
 97.47
 112.62
 110.09
 100.59
 121.94

Recent Sales of Unregistered Securities and Use of Proceeds from Registered Securities
(a) Sales of Unregistered Securities
From January 1, 20172019 through December 31, 2017,2019, we consummated the following transactions involving the issuance of unregistered securities:
the issuance of 500,650issued 1,606,062 unregistered shares of our common stock during 2017, as payment under the Services Agreementservices agreement entered into and effective as of November 1, 2015, as amended, by and between us and Third Security as previously discussed in our Current Reports on Form 8-K filed on October 30, 2015; November 3, 2016; and December 30, 2016;
the issuance of 221,743 unregistered shares of our common stock in March 2017 in connection with our purchase of the remaining 49% of outstanding equity of Biological & Popular Culture, Inc. as previously disclosed in our Quarterly Reports on Form 10-Q filed on May 10, 2017, August 9, 2017, and November 9, 2017;
the issuance of 480,422 unregistered shares of our common stock in March 2017, as payment of deferred consideration in connection with our acquisition of Oxitec as previously discussed in our Current Reports on Form 8-K filed on August 12, 2015 and September 8, 2015;
the issuance of 2,049 unregistered shares of our common stock at a weighted average issuance price of $21.94 per share in May and June 2017 as payment under a consulting agreement between us and Hyphen Fund Management LLC; and
the issuance of 1,207,980 unregistered shares of our common stock on December 29, 2017 to the R.J. Kirk Declaration of Trust, an entity affiliated with Mr. Kirk, at a price per share of $11.33 for an aggregate purchase price of $13.7 million, as previously discussed in our Current Report on Form 8-K filed on January 2, 2018.April 22, 2019.
Other than with respect to the shares issued in connection with our acquisition of Oxitec, which were issued in reliance on exemptions from registration under Rule 506(b) of Regulation D and/ or Regulation S under the Securities Act, weWe issued the above referenced shares of common stock in reliance on exemptions from registration under Section 4(a)(2) of the Securities Act.
(b) Use of Proceeds
None.
(c) Issuer Purchases of Equity Securities
None.
Item 6.Selected Financial Data
The following tables set forth our selected consolidated financial data for the periods and as of the dates indicated. You should read the following selected consolidated financial data in conjunction with our audited consolidated financial statements and the related notes thereto included elsewhere in this Annual Report and the "Management's Discussion and Analysis of Financial Condition and Results of Operations" section of this Annual Report.
The selected consolidated financial data set forth below as of December 31, 20172019 and 2016,2018, and for the years ended December 31, 2017, 20162019, 2018 and 2015,2017, are derived from our audited consolidated financial statements included elsewhere in this Annual Report. The selected consolidated financial data set forth below as of December 31, 2015, 2014,2017, 2016, and 2013,2015, and for the years ended December 31, 20142016 and 2013,2015, are derived from our audited consolidated financial statements contained in reports previously filed with the SEC, not included herein. Our audited and unaudited consolidated financial statements have been prepared in U.S.United States dollars in accordance with generally accepted accounting principlesU.S. GAAP. The selected consolidated financial data in the United States, or U.S. GAAP.below tables have been adjusted to reflect the effects of discontinued operations. See "Notes to the Consolidated Financial Statements - Note 3" appearing elsewhere in this Annual Report.
Our historical results for any prior period are not necessarily indicative of results to be expected in any future period, and our results for any interim period are not necessarily indicative of results to be expected for a full fiscal year.period.

Year Ended December 31,Year Ended December 31,
2017(2)(5) 2016 2015(3) 2014(4) 2013(5)2019 2018 2017 2016 2015
(In thousands, except share and per share amounts)(In thousands, except share and per share amounts)
Statement of Operations Data:         
Statements of Operations Data:         
Collaboration and licensing revenues$145,579
 $109,871
 $87,821
 $45,212
 $23,525
$14,059
 $69,540
 $134,624
 $97,160
 $77,242
Product revenues33,589
 36,958
 41,879
 11,481
 164
23,780
 28,486
 33,585
 36,958
 41,879
Service revenues50,611
 43,049
 42,923
 14,761
 
51,803
 52,419
 50,611
 43,049
 42,923
Total revenues(1)230,981
 190,926
 173,605
 71,930
 23,760
90,722
 151,178
 219,463
 177,607
 162,635
Total operating expenses368,871
 316,092
 320,469
 141,892
 81,783
294,934
 554,675
 315,373
 274,734
 303,329
Operating loss(137,890) (125,166) (146,864) (69,962) (58,023)(204,212) (403,497) (95,910) (97,127) (140,694)
Net loss(126,820) (190,274) (87,994) (85,616) (40,908)
Loss from continuing operations(207,757) (414,317) (80,439) (154,158) (88,848)
Net loss attributable to noncontrolling interests9,802
 3,662
 3,501
 3,794
 1,928
1,592
 5,370
 9,802
 3,662
 3,501
Net loss attributable to Intrexon(117,018) (186,612) (84,493) (81,822) (38,980)
Accretion of dividends on redeemable convertible preferred stock
 
 
 
 (18,391)
Net loss attributable to common shareholders(117,018) (186,612) (84,493) (81,822) (57,371)
Net loss attributable to common shareholders per share, basic and diluted$(0.98) $(1.58) $(0.76) $(0.83) $(1.40)
Net loss from continuing operations attributable to Precigen(206,165) (408,947) (70,637) (150,496) (85,347)
Net loss from continuing operations attributable to Precigen per share, basic and diluted$(1.34) $(3.16) $(0.59) $(1.28) $(0.77)
Weighted average shares outstanding, basic and diluted119,998,826
 117,983,836
 111,066,352
 99,170,653
 40,951,952
154,138,774
 129,521,731
 119,998,826
 117,983,836
 111,066,352
 December 31,
 2017(2)(5) 2016 2015(3) 2014(4) 2013(5)
 (In thousands)
Balance Sheet Data:         
Cash and cash equivalents$68,111
 $62,607
 $135,782
 $27,466
 $49,509
Short-term and long-term investments6,273
 180,595
 207,975
 115,608
 188,561
Equity securities, current and non-current15,100
 23,522
 83,653
 164,889
 141,525
Investments in preferred stock161,225
 129,545
 
 
 
Total assets846,851
 949,068
 982,046
 576,272
 469,472
Deferred revenue, current and non-current236,397
 310,142
 197,729
 113,209
 73,571
Other liabilities(1)63,909
 69,678
 79,431
 53,774
 14,558
Total Intrexon shareholders' equity533,631
 560,237
 694,078
 384,761
 366,722
Noncontrolling interests12,914
 9,011
 10,808
 24,528
 14,621
Total equity546,545
 569,248
 704,886
 409,289
 381,343
 December 31,
 2019 2018 2017 2016 2015
 (In thousands)
Balance Sheet Data:         
Cash and cash equivalents$65,793
 $96,876
 $59,251
 $60,217
 $126,658
Short-term and long-term investments9,260
 119,614
 6,273
 180,595
 207,975
Total assets (2)455,763
 716,177
 846,851
 949,068
 982,046
Deferred revenue, current and non-current (1)53,833
 57,816
 226,343
 298,842
 184,825
Long-term debt (3)217,991
 211,695
 8,037
 7,948
 8,528
Other liabilities (4)112,228
 67,944
 65,926
 73,030
 83,807
Total Precigen shareholders' equity71,711
 362,855
 533,631
 560,237
 694,078
Noncontrolling interests
 15,867
 12,914
 9,011
 10,808
Total equity71,711
 378,722
 546,545
 569,248
 704,886
(1)Other liabilities include $8,037, $7,948, $8,528, $10,369,
Revenues and $1,653deferred revenue in 2019 and 2018 are accounted for under Accounting Standards Codification, or ASC, Topic 606, Revenue from Contracts with Customers, or ASC 606, and revenues and deferred revenue prior to 2018 are accounted for under ASC 605, Revenue Recognition, or ASC 605. We adopted ASC 606 on January 1, 2018 using the modified retrospective method, which applies the changes in accounting prospectively and does not restate prior periods. See "Notes to the Consolidated Financial Statements - Notes 4, 6, and 18" for discussions of long term debt as of December 31, 2017, 2016, 2015, 2014, and 2013, respectively; and $8,801, $15,629, and $20,485transactions in 2018 resulting in a decrease in the balances of deferred consideration as of December 31, 2016, 2015, and 2014, respectively.revenue.
(2)Total assets include $191, $161,225, and $129,545 of investments in preferred stock as of December 31, 2018, 2017, and 2016, respectively. In 2017, we acquired GenVec, Inc., or GenVec,conjunction with the ZIOPHARM License Agreement in 2018, all of our ZIOPHARM preferred shares were returned to ZIOPHARM. See "Notes to the Consolidated Financial Statements - Notes 10 and began including the results11" for discussions of its operations effectiveimpairment losses on the acquisition date.long-lived assets recognized in 2019.
(3)In 2015,2018, we acquired ActoGeniX NV, or ActoGeniX, Okanagan, and Oxitec and began including the resultscompleted a registered underwritten public offering of their operations effective on the respective acquisition dates.$200,000 aggregate principal amount of Convertible Notes.

(4)In 2014, we acquired Medistem, Inc.Other liabilities include $8,801 and Trans Ova$15,629 of deferred consideration as of December 31, 2016 and began including the results of their operations effective on the respective acquisition dates.
(5)In 2013, we acquired ownership interests in AquaBounty and Biological & Popular Culture, Inc., or BioPop, which resulted in our gaining control over these entities, resulting in consolidation effective on the respective acquisition dates. We acquired the remaining 49 percent of outstanding equity of BioPop in March 2017.2015, respectively.
Item 7.Management's Discussion and Analysis of Financial Condition and Results of Operations
The following discussion and analysis of financial condition and results of operations is provided to enhance the understanding of, and should be read in conjunction with, Part I, Item 1, "Business" and Item 8, "Financial Statements and Supplementary Data." For information on risks and uncertainties related to our business that may make past performance not indicative of future results, or cause actual results to differ materially from any forward-looking statements, see "Special Note Regarding Forward-Looking Statements," and Part I, Item 1A, "Risk Factors."
Financial overview
We have incurred significant losses since our inception. We anticipate that we may continue to incur significant losses for the foreseeable future, and we may never achieve or maintain profitability. Outside of collaboration and license fee payments and sales of products and services, which vary over time, we have not generated significant revenues, including revenues or royalties from product sales by us or our collaborators. Certain of our consolidated subsidiaries require regulatory approval and/or commercial scale-up before they may commence significant product sales and operating profits.
We expectIn April 2019, we initiated efforts to better deploy resources, realize inherent synergies, and position us for growth with a core focus on healthcare and initiated plans to achieve this through various corporate activities, including partnering, potential asset sales, and operating cost reductions. In conjunction with these efforts, our future capital requirements will be substantial, particularlyCODM began assessing the operating performance of, and allocated resources for, our operating segments using Segment Adjusted EBITDA as defined below.
In January 2020, we furthered our plans to enhance our focus on the healthcare industry when we sold a number of our bioengineering assets in the TS Biotechnology Sale to TS Biotechnology. The assets divested in the TS Biotechnology Sale included our domain name dna.com and all of our equity interests in (1) Blue Marble AgBio, a Delaware limited liability company, that we formed to hold our agricultural biotechnology assets, (2) ILH Holdings, a Delaware corporation, which housed our yeast fermentation technology platform for the biologic production of active pharmaceutical ingredients and other fine chemicals, (3) IPHI, a Delaware corporation, which owns Okanagan Specialty Fruits, the agricultural company developing non-browning apples without the use of any artificial additives, (4) Intrexon UK Holdings, a Delaware corporation, which owns Oxitec, the developer of an insect-based biological control system, (5) Oragenics, a Florida corporation, which is developing antibiotics against infectious disease and, in collaboration with ActoBio, treatments for oral mucositis, and (6) SH Parent, a Delaware corporation, which held our ownership interests in Surterra, a cannabinoid-based wellness company. In addition, in January 2020, in a separate transaction, we sold our interest in EnviroFlight to Darling, referred to collectively with the TS Biotechnology Sale as the Transactions.
Beginning in the fourth quarter of 2019, we determined that assets, liabilities and operations sold in the Transactions collectively met the criteria for discontinued operations. As such, the assets, liabilities, and operations related to the Transactions are reclassified and presented as discontinued operations for all periods.
See "Notes to the Consolidated Financial Statements - Note 3" appearing elsewhere in this Annual Report for a discussion of the Transactions and the discontinued operations.
Additionally, as we continue our efforts to developfocus our business and expand our synthetic biology technology platform. In January 2018,generate additional capital, we closed a public offering of 6,900,000 sharesmay be willing to enter into transactions involving one or more of our common stock, including 1,000,000 shares of common stock purchased by affiliates of Third Security, the net proceeds of which were $82.2 million, after deducting underwriting discountsoperating segments and commissions and estimated offering expenses payable by us. In October 2017, we entered into a Preferred Stock Facility with an affiliate of Third Security, underreporting units for which we may, at our solehave goodwill and exclusive option, issue and sell up to $100 million of newly issued Series A Preferred Stock and which expires April 30, 2019. We believe that our existing cash and cash equivalents, short-term investments, cash expected to be received through our current collaborators and for sales of products and services provided by our consolidated subsidiaries, cash receivedintangible assets. These efforts could result in our January 2018 offering,identifying impairment indicators or recording impairment charges in future periods. In addition, market changes and any issuanceschanges in judgments, assumptions and estimates that we have made in assessing the fair value of Series A Preferred Stock under the Preferred Stock Facility will enablegoodwill could cause us to fund our operating expenses and capital expenditure requirements for at least the next 12 months.consider some portion or all of certain assets to become impaired.
Sources of revenue
Historically, we have derived our collaboration and licensing revenues through agreements with counterparties for the development and commercialization of products enabled by our technologies. Generally, the terms of these collaborations provide that we receive some or all of the following: (i) technology access fees upon signing; (ii) reimbursements of costs incurred by us for our research and development and/or manufacturing efforts related to specific applications provided for in the collaboration; (iii) milestone payments upon the achievement of specified development, regulatory and commercial activities; and (iv) royalties on sales of products arising from the collaboration.

Our technology access fees and milestone payments may be in the form of cash or securities of the collaborator. Our collaborations contain multiple arrangements, and we typically defer revenues from the technology access fees and milestone payments received and recognize such revenues in the future over the anticipated performance period. We are also entitled to sublicensing revenues in those situations where our collaborators choose to license our technologies to other parties. See Note 2
As we continue to shift our consolidated financial statements appearing elsewhere in this Annual Report for additional discussion offocus on our revenue recognition for these collaborations.
From timehealthcare business, we expect to time,cancel collaboration agreements or we and certainmay repurchase rights to the exclusive fields from collaborators, may cancel the agreements, relieving us of any further performance obligations under the agreement. WhenUpon such circumstances or when we determine no further performance obligations are required of us under an agreement, we may recognize any remaining deferred revenue.revenue as either collaboration revenue or as a reduction of in-process research and development expense, depending on the circumstances.
We generate product and service revenues primarily through sales of products or services that are created from technologies developed or owned by us. Our primary current offerings arise from Trans Ova and include sales of advanced reproductive technologies, including our bovine embryo transfer and in vitro fertilizationIVF processes and from genetic preservation and sexed semen processes and applications of such processes to other livestock, as well as sales of livestock and embryos produced using these processes and used in production.  RevenueWe recognize revenue when control of the promised product is recognized when (i) persuasive evidence of an arrangement exists, (ii) services have been

rendered or delivery has occurred such that risk of loss has passedtransferred to the customer (iii)or when the pricepromised service is fixed or determinable, and (iv) collection from the customer is reasonably assured.completed.
In future periods, in connection with our focus on healthcare, our revenues will primarily depend in part on our ability to partneradvance and create our more matureown programs and capabilities,the extent to which we bring products enabled by our technologies to market. We expect our collaboration revenues will continue to decrease in the near term as the number of collaborations to which we are party the advancementdeclines and creation of programs withinas we fulfill our collaborations and the extent to which our collaborators bring products enabled by our technologies to market.obligations under any remaining ECCs. Our revenues will also depend upon our ability to maintain or improve the volume and pricing of ourTrans Ova's current product and service offerings and to develop and scale up production of new offerings from the various technologies of our subsidiaries. Our future revenues may also include additional revenue streamsAs we may acquire through mergersfocus on our healthcare business, we anticipate that our expenses will increase substantially if, and acquisitions. In lightas, we continue to advance the preclinical and clinical development of our limited operating historyexisting product candidates and experience,our research programs. We expect a significant period of time could pass before commercialization of our various product candidates or before the achievement of contractual milestones and the realization of royalties on product candidates commercialized under our collaborations and revenues sufficient to achieve profitability. Accordingly, there can be no assurance as to the timing, magnitude, and predictability of revenues to which we might be entitled.
Cost of products and services
Cost of products and services includes primarily labor and related costs, drugs and supplies used primarily in theTrans Ova's embryo transfer and in vitro fertilizationIVF processes, livestock and feed used in production, and facility charges, including rent and depreciation. Fluctuations in the price of livestock and feed have not had a significant impact on our operating margins and no derivative financial instruments are used to mitigate the price risk.
Research and development expenses
We recognize research and development expenses as they are incurred. Our research and development expenses consist primarily of:
salaries and benefits, including stock-based compensation expense, for personnel in research and development functions;
fees paid to consultants and contract research organizations who perform research on our behalf and under our direction;
costs related to laboratory supplies used in our research and development efforts;efforts and acquiring, developing, and manufacturing preclinical study and clinical trial materials;
costs related to certain in-licensed technology rights;
depreciation of leasehold improvementsrights or reacquired in-process research and laboratory equipment;development;
amortization of patents and related technologies acquired in mergers and acquisitions; and
facility-related expenses, which include direct depreciation costs and allocated expenses for rent and utility costs for our researchmaintenance of facilities and development facilities.other operating costs.

We currently have no individually significant research and development projects, and our research and development expenses primarily relate to either the costs incurred to expand or otherwise improve our multiple platform technologies, the costs incurred to develop our own products and services, or the costs incurred to develop a specific application of our technologies in support of current or prospective collaborators, or costs incurred to expand or otherwise improve our products and services.partners. Research and development expenses, including costs for preclinical and clinical development, incurred for programs we support pursuant to an ECC agreement are typically reimbursed by the collaboratorpartner at cost, and all other research and development programs may be terminated or otherwise deferred at our discretion. The amount of our research and development expenses may be impacted by, among other things, the number and nature of ECCsour own proprietary programs, and the number and size of programs we may support on behalf of an ECC.
The table below summarizes our research and development expenses incurred to expand or otherwise improve our multiple platform technologies, the costs incurred to develop a specific application of our technologies in support of current or prospective collaborators and licensees, or costs incurred to expand or otherwise improve our products and services for the years ended December 31, 2017, 2016, and 2015. Other research and development expenses for these periods include indirect salaries and overhead expenses that are not allocated to either expanding or improving our multiple platform technologies, specific applications of our technologies in support of current or prospective collaborators and licensees, or expanding or improving our product and services offerings. Research and development expenses for the year ended December 31, 2015 include a $59.6 million payment in our common stock for an exclusive license to certain technologies owned by MD Anderson to be used in the expansion and improvement of our platform technologies.

 Year Ended December 31,
 2017 2016 2015
 (In thousands)
Expansion or improvement of our platform technologies$14,515
 $12,195
 $75,779
Specific applications of our technologies in support of current and prospective collaborators and licensees77,001
 62,960
 41,306
Expansion or improvement of our product and service offerings27,134
 17,585
 10,537
Other24,557
 19,395
 19,861
Total research and development expenses$143,207
 $112,135
 $147,483
We expect that our research and development expenses will increase as we enter into new collaborations,continue to develop our own proprietary programs, and expand our offerings.including the progression of these programs into pre-clinical or clinical stages. We believe these increases will likely include increased costs related to the hiring of additional personnel in research and development functions, increased costs paid to consultants and contract research organizations, and increased costs related to laboratory supplies. Research and development expenses may also increase as a result of ongoing research and development operations whichthat we might assume through mergers and acquisitions.acquisitions or in-licensing of technologies.
Selling, general and administrative expenses
Selling, general and administrative, or SG&A, expenses consist primarily of salaries and related costs, including stock-based compensation expense, for employees in executive, operational, finance, sales and marketing, information technology, legal, and corporate communications functions. Other significant SG&A expenses include rent and utilities, insurance, accounting, and legal services, and expenses associated with obtaining and maintaining our intellectual property.
We expect that our SG&A expenses will continue to increase to supportmay fluctuate in the future depending on the number and nature of transactions we may undertake with certain of our expanding operations as we explore new partnering opportunities and continue to develop our proprietary programs. We believe that these increases will likely include costssubsidiaries. These fluctuations could be related to the hiring of additional personnel, and increasedlegal fees, for business development functions, costs associated with defending the Company in litigation matters, the costs of outside consultants, and other professional services. SG&A expenses may also increase as a result of ongoing operations which we might assume through mergers and acquisitions.
Other income (expense), net
We holdhave historically held equity securities and preferred stock of private and publicly traded companies, including investments received and/or purchased from certain collaborators. Other than investments accounted for usingWe evaluate whether to elect the equity method discussed below, wefair value option on an individual investment basis. We elected the fair value option to account for our equity securities and preferred stock held in these collaborators.publicly traded companies. These equity securities and preferred stock are recorded at fair value at each reporting date. Unrealized appreciation (depreciation) resulting from fair value adjustments are reported as other income (expense) in the consolidated statementstatements of operations. As such,We account for our investments in private companies using either the equity method or the measurement alternative method for equity securities without readily determinable fair values, which represents cost and any adjustments for impairment or observable price changes in certain transactions. See "Notes to the Consolidated Financial Statements - Note 2" appearing elsewhere in this Annual Report. We expect minimal gains (losses) on our securities portfolio in future periods as we bearexpect to finish liquidating our portfolio in early 2020.
Interest expense is expected to increase in future periods due to the risk that fluctuations innoncash amortization of the securities' share prices may significantly impact our results of operations. In June 2015, we recorded a realized gainlong-term debt discount and debt issuance costs related to the distribution of all our shares of ZIOPHARM to our shareholders as a special stock dividend.Convertible Notes issued in July 2018.
Interest income consists of interest earned on our cash and cash equivalents and short-term and long-term investments. Dividend income consistshistorically consisted of the monthly preferred stock dividends received from our investments in preferred stock.
In June 2015, we entered into an agreement with Harvest Intrexon Enterprise Fund I, LP, or Harvest, an investment fund sponsored by Harvest Capital Strategies, LLC, and a related party based on ownership in the fund by affiliatesstock, virtually all of Third Security. Harvest was established to invest in life science research and development start-up opportunities that we offered to Harvest with exclusive rightswhich has been liquidated as of first-look and first negotiation. In September 2017, the commitment period for Harvest was terminated and, as a result, the agreement with Harvest terminated. The termination of the agreement had no effect on the existing collaborations with Harvest-controlled entities. Through September 2017, as consideration for providing exclusive rights of first-look and first negotiation, we received a portion of the management fee collected by the fund sponsor of Harvest for our obligation to provide Harvest with investment proposals that were suitable for pursuit by a start-up. These fees will decrease as a result of the termination of the Harvest agreement. These fees are included in other income.December 31, 2019.
Equity in net income (loss) of affiliates
Equity in net income or loss of affiliates is our pro-rata share of our equity method investments' operating results, adjusted for accretion of basis difference. We account for investments in our JVs and start-up entities backed by Harvest Intrexon Enterprise Fund I, LP, or Harvest, using the equity

method of accounting since we have the ability to exercise significant influence, but not control, over the operating activities of these entities.
Segment performance
We use Segment Adjusted EBITDA as our primary measure of segment performance. We define Segment Adjusted EBITDA as net loss before (i) interest expense, (ii) income tax expense or benefit, (iii) depreciation and amortization, (iv) stock-based compensation expense, (v) loss on impairment of goodwill and other long-lived assets, (vi) equity in net loss of affiliates, and

(vii) recognition of previously deferred revenue associated with upfront and milestone payments as well as cash outflows from capital expenditures and investments in affiliates. Corporate expenses are not allocated to the segments and are managed at a consolidated level.
Results of operations
Comparison of the year ended December 31, 20172019 to the year ended December 31, 20162018
The following table summarizes our results of operations for the years ended December 31, 20172019 and 2016,2018, together with the changes in those items in dollars and as a percentage:
Year Ended 
 December 31,
 
Dollar
Change
 
Percent
Change
Year Ended 
 December 31,
 
Dollar
Change
 
Percent
Change
2017 2016 2019 2018 
(In thousands)  (In thousands)  
Revenues              
Collaboration and licensing revenues (1)$145,579
 $109,871
 $35,708
 32.5 %$14,059
 $69,540
 $(55,481) (79.8)%
Product revenues33,589
 36,958
 (3,369) (9.1)%23,780
 28,486
 (4,706) (16.5)%
Service revenues50,611
 43,049
 7,562
��17.6 %51,803
 52,419
 (616) (1.2)%
Other revenues1,202
 1,048
 154
 14.7 %1,080
 733
 347
 47.3 %
Total revenues230,981
 190,926
 40,055
 21.0 %90,722
 151,178
 (60,456) (40.0)%
Operating expenses              
Cost of products33,263
 37,709
 (4,446) (11.8)%31,930
 35,087
 (3,157) (9.0)%
Cost of services29,525
 23,930
 5,595
 23.4 %29,471
 27,589
 1,882
 6.8 %
Research and development143,207
 112,135
 31,072
 27.7 %101,879
 366,248
 (264,369) (72.2)%
Selling, general and administrative146,103
 142,318
 3,785
 2.7 %100,844
 125,751
 (24,907) (19.8)%
Impairment loss16,773
 
 16,773
 N/A
30,810
 
 30,810
 N/A
Total operating expenses368,871
 316,092
 52,779
 16.7 %294,934
 554,675
 (259,741) (46.8)%
Operating loss(137,890) (125,166) (12,724) 10.2 %(204,212) (403,497) 199,285
 (49.4)%
Total other income (expense), net22,473
 (47,865) 70,338
 147.0 %
Total other expense, net(2,059) (17,259) 15,200
 (88.1)%
Equity in loss of affiliates(14,283) (21,120) 6,837
 (32.4)%(2,416) (8,986) 6,570
 (73.1)%
Loss before income taxes(129,700) (194,151) 64,451
 (33.2)%
Loss from continuing operations before income taxes(208,687) (429,742) 221,055
 (51.4)%
Income tax benefit2,880
 3,877
 (997) (25.7)%930
 15,425
 (14,495) (94.0)%
Loss from continuing operations(207,757) (414,317) 206,560
 (49.9)%
Loss from discontinued operations, net of income tax benefit (2)(116,159) (100,389) (15,770) 15.7 %
Net loss(126,820) (190,274) 63,454
 (33.3)%(323,916) (514,706) 190,790
 (37.1)%
Net loss attributable to noncontrolling interests9,802
 3,662
 6,140
 167.7 %1,592
 5,370
 (3,778) (70.4)%
Net loss attributable to Intrexon$(117,018) $(186,612) $69,594
 (37.3)%
Net loss attributable to Precigen$(322,324) $(509,336) $187,012
 (36.7)%
(1)Including $130,670$11,832 and $93,792$55,573 from related parties for the years ended December 31, 20172019 and 2016,2018, respectively.
(2)The results of operations in the table above include the operations related to the Transactions, as well as adjustments to those businesses as a result of the Transactions, in loss from discontinued operations, net of income tax benefit. The increase in the loss from discontinued operations in 2019 is due to additional impairment losses recorded related to the Transactions. See "Notes to the Consolidated Financial Statements - Note 3" appearing elsewhere in this Annual Report.

Collaboration and licensing revenues
The following table shows the collaboration and licensing revenue recognized for the years ended December 31, 20172019 and 2016,2018, together with the changes in those items. See Note 5 to our consolidated financial statements appearing elsewhere in this Annual Report for further discussion of our collaboration and licensing revenues.
Year Ended 
 December 31,
 
Dollar
Change
Year Ended 
 December 31,
 
Dollar
Change
2017 2016 2019 2018 
(In thousands)(In thousands)
ZIOPHARM Oncology, Inc.$69,812
 $33,836
 $35,976
$2,171
 $16,298
 $(14,127)
Ares Trading S.A.
 11,175
 (11,175)
Oragenics, Inc.2,020
 2,752
 (732)(564) 1,353
 (1,917)
Intrexon T1D Partners, LLC
 2,502
 (2,502)
Intrexon Energy Partners, LLC2,596
 6,929
 (4,333)
Intrexon Energy Partners II, LLC1,217
 2,998
 (1,781)
Fibrocell Science, Inc.7,344
 5,942
 1,402
3,713
 1,394
 2,319
Genopaver, LLC6,690
 6,117
 573
S & I Ophthalmic, LLC755
 6,141
 (5,386)
OvaXon, LLC1,966
 2,934
 (968)
Intrexon Energy Partners, LLC10,665
 17,552
 (6,887)
Persea Bio, LLC946
 1,278
 (332)
Ares Trading S.A.10,738
 10,192
 546
Intrexon Energy Partners II, LLC3,672
 3,169
 503
Intrexon T1D Partners, LLC5,968
 1,908
 4,060
Harvest start-up entities (1)15,232
 4,974
 10,258
4,862
 14,447
 (9,585)
Other9,771
 13,076
 (3,305)64
 12,444
 (12,380)
Total$145,579
 $109,871
 $35,708
$14,059
 $69,540
 $(55,481)
(1)For the years ended December 31, 20172019 and 2016,2018, revenue recognized from collaborations with Harvest start-up entities include Thrive Agrobiotics, Inc.; Exotech Bio, Inc.; Relieve Genetics, Inc.; AD Skincare, Inc.; and Thrive Agrobiotics, Inc. For the year ended December 31, 2018, revenues recognized from collaborations with Harvest start-up entities also include Genten Therapeutics, Inc.; and CRS Bio, Inc.
Collaboration and licensing revenues increased $35.7decreased $55.5 million, or 3380 percent, overfrom the year ended December 31, 20162018 primarily due primarily to (i) the recognitionreacquisition of rights previously licensed to certain collaborators, including ZIOPHARM, Ares Trading, and certain of the Harvest start-up entities, the result of which eliminated or substantially reduced revenues generated from those collaborations. Additionally, in 2018, we recognized additional revenues which arose from the acceleration of previously deferred revenue totaling $28.9 million related to our second ECC with ZIOPHARM for the treatmentupon mutual termination of graft-versus-host disease, which was mutually terminated in December 2017 and (ii) a full year of recognition of deferred revenue associated with the payment received in June 2016 from ZIOPHARM to amend ourcertain collaborations.
Product revenues and gross margin
Product revenuerevenues decreased $3.4$4.7 million, or 917 percent, from the year ended December 31, 2016.2018. The decrease in product revenues was primarily due to lower customer demand forin the beef and dairy industries resulting in fewer sales of pregnant cows and live calves.calf products. Gross margin on products improved slightlydeclined in the current period as a result of fewer products sold.
Service revenues and gross margin
Service revenues decreased $0.6 million, or 1 percent, from the year ended December 31, 2018. Trans Ova's service revenues and gross margin thereon declined slightly due to fewer services performed and underutilized capacity as a result of lower customer demand.
Research and development expenses
Research and development expenses decreased $264.4 million, or 72 percent, from the year ended December 31, 2018. The 2018 research and development expenses include $236.7 million of expenses related to in-process research and development reacquired from former collaborators.
Selling, general and administrative expenses
SG&A expenses decreased $24.9 million, or 20 percent, from the year ended December 31, 2018. Salaries, benefits and other personnel costs decreased $14.9 million primarily due to decreased share-based compensation expense as a result of the reversal of previously recognized expense for unvested options granted to former employees as well as the conclusion of the

vesting period for other previously granted stock options. Legal and professional fees decreased $6.1 million primarily due to fewer legal fees associated with Trans Ova.
Impairment loss
Impairment loss for the year ended December 31, 2019 of $30.8 million arose primarily from a goodwill impairment charge related to Trans Ova. As a result of our annual goodwill impairment test in the fourth quarter, we determined that it was more-likely-than-not that the fair value of Trans Ova was less than its carrying value. As a result, we performed a quantitative analysis and recorded a $29.6 million impairment charge.
Total other expense, net
Total other expense, net, decreased $15.2 million, or 88 percent, over the year ended December 31, 2018. This decrease was primarily attributable to an improvement in unrealized and realized appreciation (depreciation) on our securities portfolio of $36.6 million primarily due to unrealized losses on our ZIOPHARM preferred stock in 2018 and a realized gain on the sale of our common shares held in AquaBounty in October 2019, net of a decrease in dividend income of $15.1 million following the return of our investment in ZIOPHARM preferred stock to ZIOPHARM in October 2018. Additionally, these decreases were partially offset by an increase in interest expense of $8.6 million associated with our Convertible Notes issued in July 2018.
Segment performance
The following table summarizes Segment Adjusted EBITDA, which is our primary measure of segment performance, for the years ended December 31, 2019 and 2018, for each of our reportable segments and for All Other segments combined, as well as unallocated corporate costs.
 Year Ended 
 December 31,
 
Dollar
Change
 
Percent
Change
 2019 2018 
 (In thousands)  
Segment Adjusted EBITDA:       
PGEN Therapeutics$(30,166) $(32,841) $2,675
 8.1 %
ActoBio(13,662) (12,797) (865) (6.8)%
MBP Titan(36,718) (29,403) (7,315) (24.9)%
Trans Ova(6,337) (5,730) (607) (10.6)%
All Other(5,952) (10,708) 4,756
 44.4 %
Unallocated corporate costs47,577
 84,536
 (36,959) (43.7)%
For a reconciliation of Segment Adjusted EBITDA to net loss before income taxes, see "Notes to the Consolidated Financial Statements - Note 20" appearing elsewhere in this Annual Report.

The following table summarizes revenues from external customers for the years ended December 31, 2019 and 2018, for each of our reportable segments and for All Other segments combined.
 Year Ended 
 December 31,
 
Dollar
Change
 
Percent
Change
 2019 2018 
 (In thousands)  
PGEN Therapeutics$2,227
 $29,021
 $(26,794) (92.3)%
ActoBio(364) 6,684
 (7,048) (105.4)%
MBP Titan3,813
 9,927
 (6,114) (61.6)%
Trans Ova68,672
 75,178
 (6,506) (8.7)%
All Other16,227
 30,213
 (13,986) (46.3)%
PGEN Therapeutics
Revenues for PGEN Therapeutics declined from 2018 to 2019 primarily due to the reacquisition of rights previously licensed to certain collaborators, which eliminated or significantly reduced collaboration revenues from research and development services provided and recognition of previously deferred revenue.
ActoBio
In 2018, ActoBio reacquired rights previously licensed to certain collaborators, including Intrexon T1D Partners, Inc., resulting in the elimination of collaboration revenues from research and development services performed in 2019.
MBP Titan
Research and development services performed on our partnered programs have declined in the current period as we focus more resources on our unpartnered platform, resulting in a decline in both Segment Adjusted EBITDA and revenues for this segment.
Trans Ova
The decrease in Trans Ova's Segment revenues was primarily attributable to lower product revenues due to lower customer demand.
All Other
The Segment Adjusted EBITDA of All Other improved period over period due our closure of two reporting units in 2019 and write-downs of certain long-lived assets in 2018. Revenues in All Other declined in 2019 as result of fewer research and development services performed for collaborations with Harvest start-up entities.
Unallocated Corporate Costs
Unallocated corporate costs decreased primarily due to an improvement in unrealized and realized appreciation (depreciation) on our securities portfolio of $36.6 million primarily due to unrealized losses on our ZIOPHARM preferred stock in 2018 and a realized gain on the average costsale of cows.our common shares held in AquaBounty in October 2019, net of a decrease in dividend income of $15.1 million following the return of our investment in ZIOPHARM preferred stock to ZIOPHARM in October 2018. Additionally, consolidated costs from AquaBounty decreased in 2019 due to our deconsolidation in April 2019.

Comparison of the year ended December 31, 2018 to the year ended December 31, 2017
The following table summarizes our results of operations for the years ended December 31, 2018 and 2017, together with the changes in those items in dollars and as a percentage:
 Year Ended 
 December 31,
 
Dollar
Change
 
Percent
Change
 2018 2017  
 (In thousands)  
Revenues (1)       
Collaboration and licensing revenues (2)$69,540
 $134,624
 $(65,084) (48.3)%
Product revenues28,486
 33,585
 (5,099) (15.2)%
Service revenues52,419
 50,611
 1,808
 3.6 %
Other revenues733
 643
 90
 14.0 %
Total revenues151,178
 219,463
 (68,285) (31.1)%
Operating expenses       
Cost of products35,087
 33,236
 1,851
 5.6 %
Cost of services27,589
 28,456
 (867) (3.0)%
Research and development366,248
 109,176
 257,072
 >200%
Selling, general and administrative125,751
 130,682
 (4,931) (3.8)%
Impairment loss
 13,823
 (13,823) (100.0)%
Total operating expenses554,675
 315,373
 239,302
 75.9 %
Operating loss(403,497) (95,910) (307,587) >200%
Total other income (expense), net(17,259) 29,979
 (47,238) (157.6)%
Equity in loss of affiliates(8,986) (12,436) 3,450
 (27.7)%
Loss from continuing operations before income taxes(429,742) (78,367) (351,375) >200%
Income tax benefit (expense)15,425
 (2,072) 17,497
 >200%
Loss from continuing operations(414,317) (80,439) (333,878) >200%
Loss from discontinued operations, net of income tax benefit (3)(100,389) (46,381) (54,008) 116.4 %
Net loss(514,706) (126,820) (387,886) >200%
Net loss attributable to noncontrolling interests5,370
 9,802
 (4,432) (45.2)%
Net loss attributable to Precigen$(509,336) $(117,018) $(392,318) >200%
(1)Revenues in 2018 are accounted for under ASC 606 and revenues in 2017 are accounted for under ASC 605. We adopted ASC 606 on January 1, 2018 using the modified retrospective method, which applies the changes in accounting prospectively and does not restate prior periods.
(2)Including $55,573 and $122,485 from related parties for the years ended December 31, 2018 and 2017, respectively.
(3)The results of operations in the table above include the operations related to the Transactions in loss from discontinued operations, net of income tax benefit. The increase in the loss from discontinued operations in 2018 is due to additional impairment losses recorded at Oxitec. See "Notes to the Consolidated Financial Statements - Note 3" appearing elsewhere in this Annual Report.

Collaboration and licensing revenues
The following table shows the collaboration and licensing revenue recognized for the years ended December 31, 2018 and 2017, together with the changes in those items.
 Year Ended 
 December 31,
 
Dollar
Change
 2018 2017 
 (In thousands)
ZIOPHARM Oncology, Inc.$16,298
 $69,812
 $(53,514)
Ares Trading S.A.11,175
 10,738
 437
Oragenics, Inc.1,353
 1,469
 (116)
Intrexon T1D Partners, LLC2,502
 5,968
 (3,466)
Intrexon Energy Partners, LLC6,929
 10,665
 (3,736)
Intrexon Energy Partners II, LLC2,998
 3,672
 (674)
Fibrocell Science, Inc.1,394
 7,344
 (5,950)
OvaXon, LLC
 1,966
 (1,966)
S & I Ophthalmic, LLC
 755
 (755)
Harvest start-up entities (1)14,447
 15,232
 (785)
Other12,444
 7,003
 5,441
Total$69,540
 $134,624
 $(65,084)
(1)For the years ended December 31, 2018 and 2017, revenue recognized from collaborations with Harvest start-up entities include Genten Therapeutics, Inc.; CRS Bio, Inc.; Exotech Bio, Inc.; AD Skincare, Inc.; and Thrive Agrobiotics, Inc. For the year ended December 31, 2017, revenues recognized from collaborations with Harvest start-up entities also include Relieve Genetics, Inc.
Collaboration and licensing revenues decreased $65.1 million, or 48 percent, from the year ended December 31, 2017 due to (i) the mutual termination in 2017 of our second ECC with ZIOPHARM for the treatment of graft-versus-host disease, (ii) a decrease in research and development services for certain of our ECCs as we redeployed certain resources towards supporting prospective new platforms and partnering opportunities and began to focus more on the further development of relationships and structures that provide us with more control and ownership over the development process and commercialization path, including programs where we reacquired the previously licensed technology rights in 2018, and (iii) a decrease in research and development services we perform for collaborators upon the transition of program execution to our collaborators.
Product revenues and gross margin
Product revenue decreased $5.1 million, or 15 percent, from the year ended December 31, 2017. The decrease in product revenues was primarily due to lower milk prices which in turn resulted in lower customer demand for live calves, cows previously used in production, and cloned products. Gross margin on products declined in the current period as a result of the lower product sales and increased operating costs associated with new product offerings and cloned products.
Service revenues and gross margin
Service revenue increased $7.6$1.8 million, or 184 percent, over the year ended December 31, 2016.2017. The increase in service revenues and gross margin thereon relates to pricing changes and an increase in the number of embryos produced per bovine in vitro fertilization cyclescycle performed due to higher customer demand. Gross margin on services decreased slightly in the current period primarily due to an increase in royalties and commissions due to vendors.improved production results.
Research and development expenses
Research and development expenses increased $31.1$257.1 million, or 28236 percent, over the year ended December 31, 2016. The increase is due primarily to increases in (i) lab supplies and consulting expenses, (ii) salaries, benefits and other personnel costs for2017. Current period research and development employees, (iii) depreciation and amortization, and (iv) rent and utilities expenses. Lab supplies and consulting expenses increased $11.3include $236.7 million dueof expenses related to (i) the progression of certain programs into the preclinical and clinical

phases with certain of our collaborators and (ii) the expansion or improvement of certain of our platform technologies. Salaries, benefits and other personnel costs increased $8.0 million due to an increase inin-process research and development headcount necessary to invest in current or expanding platforms and to develop new prospective collaborations and other partnering opportunities. Depreciation and amortization increased $5.8 million primarily as a result of (i) the amortization of developed technology acquiredreacquired from Oxitec, which began in November 2016 upon the completion of certain operational and regulatory events, and (ii) the amortization of developed technology acquired from GenVec in June 2017. Rent and utilities expenses increased $3.3 million due to the expansion of certain facilities to support our increased headcount.former collaborators.

Selling, general and administrative expenses
SG&A expenses increased $3.8decreased $4.9 million, or 34 percent, overfrom the year ended December 31, 2016. Salaries, benefits and other personnel costs increased $4.2 million primarily due to increased headcount to support our expanding operations.2017. Legal and professional fees increased $4.2decreased $6.2 million primarily due to (i) increaseddecreased legal fees to defendassociated with ongoing litigation and to support our evolving corporate strategy(ii) decreased fees incurred for regulatory and (ii) consulting fees related to potential business opportunities and public relations. These increases were partially offset by $4.3 million in litigation expenses recorded in 2016 arising from the entrance of a court order in our trial with XY, LLC, or XY.other consultants.
Impairment loss
Impairment loss for the year ended December 31, 2017 of $16.8$13.8 million resulted from our annual test for goodwill and indefinite-lived intangible asset impairment in the fourth quarter. Based on the price per share received by AquaBounty in its recentthen-recent underwritten public offering, we determined that it was more likely than not that the fair value of our AquaBounty reporting unit was less than the carrying value and recorded a $13.0 million impairment charge representing the estimated excess of carrying value over fair value of this reporting unit. Additionally, in the fourth quarter, we decided to forgo further development of certain of our in-process research and development assets and as a result recorded a $3.0 million impairment charge.
Total other income (expense), net
Total other income (expense), net, increased $70.3 million, or 147 percent, over the year ended December 31, 2016. This increase was primarily attributable to (i) the change in fair market value of our equity securities portfolio, investments in preferred stock, and other convertible instruments and (ii) a full year of dividend income from our investment in preferred stock of ZIOPHARM.
Equity in net loss of affiliates
Equity in net loss of affiliates for the year ended December 31, 2017 and 2016 includes our pro-rata share of the net losses of our investments we account for using the equity method of accounting. The $6.8 million, or 32 percent, decrease was primarily due to the temporary redeployment of certain resources away from JV programs towards supporting prospective new platforms and additional collaborations.

Comparison of the year ended December 31, 2016 to the year ended December 31, 2015
The following table summarizes our results of operations for the years ended December 31, 2016 and 2015, together with the changes in those items in dollars and as a percentage:
 Year Ended 
 December 31,
 
Dollar
Change
 
Percent
Change
 2016 2015  
 (In thousands)  
Revenues       
Collaboration and licensing revenues (1)$109,871
 $87,821
 $22,050
 25.1 %
Product revenues36,958
 41,879
 (4,921) (11.8)%
Service revenues43,049
 42,923
 126
 0.3 %
Other revenues1,048
 982
 66
 6.7 %
Total revenues190,926
 173,605
 17,321
 10.0 %
Operating expenses       
Cost of products37,709
 40,746
 (3,037) (7.5)%
Cost of services23,930
 23,183
 747
 3.2 %
Research and development112,135
 147,483
 (35,348) (24.0)%
Selling, general and administrative142,318
 109,057
 33,261
 30.5 %
Total operating expenses316,092
 320,469
 (4,377) (1.4)%
Operating loss(125,166) (146,864) 21,698
 (14.8)%
Total other income (expense), net(47,865) 68,830
 (116,695) (169.5)%
Equity in loss of affiliates(21,120) (8,944) (12,176) 136.1 %
Loss before income taxes(194,151) (86,978) (107,173) 123.2 %
Income tax benefit (expense)3,877
 (1,016) 4,893
 >200%
Net loss(190,274) (87,994) (102,280) 116.2 %
Net loss attributable to noncontrolling interests3,662
 3,501
 161
 4.6 %
Net loss attributable to Intrexon$(186,612) $(84,493) $(102,119) 120.9 %
(1)Including $93,792 and $77,354 from related parties for the years ended December 31, 2016 and 2015, respectively.

Collaboration and licensing revenues
The following table shows the collaboration and licensing revenue recognized for the years ended December 31, 2016 and 2015, together with the changes in those items. See Note 5 to our consolidated financial statements appearing elsewhere in this Annual Report for further discussion of our collaboration and licensing revenues.
 Year Ended 
 December 31,
 
Dollar
Change
 2016 2015 
 (In thousands)
ZIOPHARM Oncology, Inc.$33,836
 $19,306
 $14,530
Oragenics, Inc.2,752
 6,535
 (3,783)
Fibrocell Science, Inc.5,942
 12,179
 (6,237)
Genopaver, LLC6,117
 3,829
 2,288
S & I Ophthalmic, LLC6,141
 4,115
 2,026
OvaXon, LLC2,934
 2,540
 394
Intrexon Energy Partners, LLC17,552
 13,447
 4,105
Persea Bio, LLC1,278
 1,241
 37
Ares Trading S.A.10,192
 4,728
 5,464
Intrexon Energy Partners II, LLC3,169
 167
 3,002
Intrexon T1D Partners, LLC1,908
 
 1,908
Harvest start-up entities (1)4,974
 266
 4,708
Other13,076
 19,468
 (6,392)
Total$109,871
 $87,821
 $22,050
(1)For the year ended December 31, 2016, revenue recognized from collaborations with Harvest start-up entities include Thrive Agrobiotics, Inc.; Exotech Bio, Inc.; Relieve Genetics, Inc.; AD Skincare, Inc.; Genten Therapeutics, Inc.; and CRS Bio, Inc. For the year ended December 31, 2015, revenue recognized from collaborations with Harvest start-up entities include Thrive Agrobiotics, Inc.
Collaboration and licensing revenues increased $22.1 million over the year ended December 31, 2015 due to (i) the recognition of deferred revenue for upfront payments received from collaborations signed by us in 2016, including the consideration received in June 2016 from ZIOPHARM to amend the collaborations between us; and (ii) increased research and development services for these collaborations and for the expansion of programs or the addition of new programs with previously existing collaborators, including ZIOPHARM, Genopaver, LLC, Ares Trading, and our JVs with S & I Ophthalmic and Intrexon Energy Partners. This increase is partially offset by the recognition in 2015 of previously deferred revenue related to collaboration agreements for which we satisfied all of our obligations or which were terminated during 2015.
Product revenues and gross margin
Product revenues decreased $4.9 million, or 12 percent, from the year ended December 31, 2015. The decrease in product revenues and gross margin primarily relates to a decrease in the quantities of cows and live calves sold due to lower customer demand for these products and also due to a decline in average sales price of cows previously used in production.
Service revenues and gross margin
Revenues and gross margin on services were consistent year over year.
Research and development expenses
Research and development expenses decreased $35.3 million, or 24 percent, from the year ended December 31, 2015. The decrease is due primarily to the inclusion in 2015 of a $59.6 million payment in common stock for an exclusive license to certain technologies owned by MD Anderson. This decrease was partially offset by increases in (i) salaries, benefits and other personnel costs for research and development employees, (ii) lab supplies and consulting expenses, and (iii) depreciation and

amortization. Salaries, benefits and other personnel costs increased $7.3 million due to (i) an increase in research and development headcount to support new and expanded collaborations and (ii) a full year of costs for research and development employees assumed in our 2015 acquisitions. Lab supplies and consulting expenses increased $10.6 million as a result of (i) the progression into the preclinical phase with certain of our collaborators, (ii) the increased level of research and development services provided to our collaborators, and (iii) a full year of compensation costs incurred for employees assumed in our 2015 acquisitions. Depreciation and amortization increased $5.7 million primarily as a result of (i) inclusion of a full year of depreciation and amortization on property, equipment and intangible assets from our 2015 acquisitions and (ii) a full year of amortization of AquaBounty's intangible assets which commenced upon regulatory approval in November 2015.
Selling, general and administrative expenses
SG&A expenses increased $33.3 million, or 31 percent, over the year ended December 31, 2015. Salaries, benefits and other personnel costs for SG&A employees increased $3.2 million due to (i) increased headcount, including the hiring of two new executive officers and additional business development professionals; (ii) a full year of non-cash compensation paid to our CEO pursuant to the compensation agreement into which we entered in November 2015; and (iii) a full year of salaries, benefits and other personnel costs for employees assumed in our 2015 acquisitions. These increases were partially offset by a decrease in performance-based cash incentives for our executive officers in 2016. Legal and professional expenses increased $18.6 million primarily due to (i) a full year of non-cash consulting expenses pursuant to the Services Agreement with Third Security into which we entered in November 2015; (ii) expenses incurred to support domestic and international government affairs for regulatory and other approvals necessary to commercialize our products and services; (iii) increased legal fees to defend ongoing litigation; and (iv) incremental costs incurred to support our 2015 acquisitions and other business development activities. In 2016, we also recorded $4.3 million in litigation expenses arising from the entrance of a court order in our trial with XY.
Total other income (expense), net
Total other income (expense), net, decreased $116.7$47.2 million, or 170158 percent, from the year ended December 31, 2015.2017. This decrease was primarily attributable to the $81.4 million realized gain recognized upon the special stock dividend of all oflosses on our shares ofinvestment in ZIOPHARM to our shareholders in June 2015 and the decrease in fair value of our equity securities portfolio. These decreases were partially offset by preferred stock dividend income received from ZIOPHARM.prior to returning this investment to ZIOPHARM in October 2018, as well as an increase in interest expense related to the Convertible Notes issued in July 2018.
Equity in net lossSegment performance
The following table summarizes Segment Adjusted EBITDA, which is our primary measure of affiliates
Equity in net loss of affiliates increased $12.2 million, or 136 percent, oversegment performance, for the yearyears ended December 31, 2015. 2018 and 2017, for each of our reportable segments and for All Other segments combined, as well as unallocated corporate costs.
 Year Ended 
 December 31,
 
Dollar
Change
 
Percent
Change
 2018 2017 
 (In thousands)  
Segment Adjusted EBITDA:       
PGEN Therapeutics$(32,841) $(5,655) $(27,186) <(200)%
ActoBio(12,797) (2,656) (10,141) <(200)%
MBP Titan(29,403) (32,251) 2,848
 8.8%
Trans Ova(5,730) 1,020
 (6,750) <(200)%
All Other(10,708) (1,102) (9,606) <(200)%
Unallocated corporate costs84,536
 53,197
 31,339
 58.9%
For a reconciliation of Segment Adjusted EBITDA to net loss before income taxes, see "Notes to the Consolidated Financial Statements - Note 20" appearing elsewhere in this Annual Report.

The increasefollowing table summarizes revenues from external customers for the years ended December 31, 2018 and 2017, for each of our reportable segments and for All Other segments combined.
 Year Ended 
 December 31,
 
Dollar
Change
 
Percent
Change
 2018 2017 
 (In thousands)  
PGEN Therapeutics$29,021
 $53,184
 $(24,163) (45.4)%
ActoBio6,684
 12,929
 (6,245) (48.3)%
MBP Titan9,927
 14,336
 (4,409) (30.8)%
Trans Ova75,178
 79,783
 (4,605) (5.8)%
All Other30,213
 59,174
 (28,961) (48.9)%
PGEN Therapeutics
Revenues for PGEN Therapeutics declined from 2017 to 2018 due to a reduction in the level of services requested by our collaborators during the first half of the year and declined further in late 2018 upon the reacquisition of rights previously licensed to certain collaborators. The decline in Segment Adjusted EBITDA resulted from both the decline in revenues and also the increased costs of funding our own internal programs beginning in 2018.
ActoBio
The decrease in ActoBio's Segment Adjusted EBITDA and revenues is due to the additionCompany reacquisition of rights previously licensed during 2018 to certain collaborators, including T1D and certain of the Harvest start-up entities. The result of which eliminated or substantially reduced revenues generated from those collaborations.
MBP Titan
Research and development services performed on our new JVs entered intopartnered programs have declined in 2016, including2018 as we focused more resources on our unpartnered platform, resulting in a decline in both Segment Adjusted EBITDA and revenues for this segment. The decline in Segment Adjusted EBITDA in 2018 was partially offset by a reduction in capital expenditure investments at MBP Titan's facility.
Trans Ova
The decrease in start-up entities backed by Harvest,Trans Ova's Segment Adjusted EBITDA was primarily attributable to lower product revenues and margins thereon due to lower customer demand, as well as additional expensesthe cost of capital expenditure investments in Progentus' breeding herd and facility improvements in the 2018.
All Other
The Segment Adjusted EBITDA and revenues of All Other decreased due to the terminations of ECCs with certain collaborators.
Unallocated Corporate Costs
Unallocated corporate costs increased primarily due to a decline in the unrealized and realized appreciation (depreciation) in our securities portfolio of $38.4 million primarily from unrealized losses on our ZIOPHARM preferred stock, which was partially offset with decreases in professional fees due to decreased fees incurred by ourfor regulatory and other JVs as their programs continue to progress.consultants.
Liquidity and capital resources
Sources of liquidity
We have incurred losses from operations since our inception, and as of December 31, 2017,2019, we had an accumulated deficit of $847.8 million.$1.7 billion. From our inception through December 31, 2017,2019, we have funded our operations principally with proceeds received from private and public equity and debt offerings, cash received from our collaborators, and through product and service sales made directly to customers. As of December 31, 2017,2019, we had cash and cash equivalents of $68.1$65.8 million and short-term

investments of $6.3$9.3 million. In January 2018, we closed a public offering of 6,900,000 shares of our common stock, including 1,000,000 shares of common stock purchased by affiliates of Third Security, the net proceeds of which were $82.2 million, after deducting underwriting discounts and commissions and estimated offering expenses payable by us. In October 2017, we entered into a Preferred Stock Facility with an affiliate of Third Security, under which we may, at our sole and exclusive option, issue and sell up to $100 million of newly issued Series A Preferred Stock. Cash in excess of immediate requirements is typically invested primarily in money market funds and U.S.United States government debt securities in order to maintain liquidity and preserve capital.
We currently generate cash receipts primarily from technology access fees,sales of products and services, reimbursement of research and development services performed by us, and salesfrom strategic transactions involving our subsidiaries. In January 2020, we also received proceeds of products$65.2 million from the Transactions and services.

an additional $35.0 million from the sale of our common stock in a private placement.
Cash flows
The following table sets forth the significant sources and uses of cash for the periods set forth below:
Year Ended December 31,Year Ended December 31,
2017 2016 20152019 2018 2017
(In thousands)(In thousands)
Net cash provided by (used in):          
Operating activities$(104,139) $(55,975) $35,669
$(135,927) $(124,240) $(103,720)
Investing activities104,332
 (28,392) (259,245)86,851
 (151,213) 104,332
Financing activities4,284
 12,065
 331,683
8,138
 309,795
 4,284
Effect of exchange rate changes on cash and cash equivalents1,027
 (873) 209
Net increase (decrease) in cash and cash equivalents$5,504
 $(73,175) $108,316
Effect of exchange rate changes on cash, cash equivalents, and restricted cash(810) 295
 1,055
Net increase (decrease) in cash, cash equivalents, and restricted cash$(41,748) $34,637
 $5,951
Cash flows from operating activities:
In 2019, our net loss was $323.9 million, which includes the following significant noncash expenses totaling $191.0 million from both continuing and discontinued operations: (i) $120.5 million of impairment loss, (ii) $24.9 million of depreciation and amortization expense, (iii) $19.0 million of stock-based compensation expense, (iv) $10.4 million of shares issued for payment of services, (v) $9.5 million accretion of debt discount and amortization of deferred financing costs, and (vi) $6.7 million of equity in net loss of affiliates. These expenses were partially offset by $7.8 million of unrealized and realized appreciation on equity securities and preferred stock, net.
In 2018, our net loss was $514.7 million, which includes the following significant noncash expenses totaling $440.0 million from both continuing and discontinued operations: (i) $236.7 million of expense related to reacquired in-process research and development previously licensed to certain of our collaborators, (ii) $60.5 million of impairment loss, (iii) $36.3 million of stock-based compensation expense, (iv) $33.1 million of depreciation and amortization expense, (v) $30.2 million of net unrealized and realized losses on our equity securities and preferred stock, (vi) $20.9 million of loss on disposal of assets, (vii) $11.6 million of equity in net loss of affiliates, and (viii) $10.7 million of shares issued as payment for services. These expenses were partially offset by (i) $21.3 million of net changes in deferred income taxes and (ii) $14.8 million of noncash dividend income. Additionally, we had a $20.0 million net increase in our operating assets and liabilities primarily as a result of the recognition of previously deferred revenue.
In 2017, our net loss was $126.8 million, which includes the following significant noncash expenses that totaltotaling $114.9 million:million from both continuing and discontinued operations: (i) $41.6 million of stock-based compensation expense, (ii) $31.1 million of depreciation and amortization expense, (iii) $16.8 million of impairment losses, (iv) $14.3 million of equity in net loss of affiliates, and (v) $11.1 million of shares issued as payment for services,services. These expenses were partially offset by $16.8 million of noncash dividend income. Additionally, we had a $74.6 million net increase in our operating assets and liabilities. In 2016, our net loss was $190.3 million, which includes the following significant noncash expenses that total $157.6 million: (i) $58.9 million of unrealized and realized losses on our equity securities and preferred stock, (ii) $42.2 million of stock-based compensation expense, (iii) $24.6 million of depreciation and amortization expense, (iv) $21.1 million of equity in net loss of affiliates, and (v) $10.8 million of shares issued as payment for services, partially offset by $7.4 million of noncash dividend income. Additionally, we had a $17.7 million net increase in our operating assets and liabilities primarily as a result of the recognition of previously deferred revenue, partially offset by a $10.0revenue.
Our 2019 cash outflows from operations increased $11.7 million technology access fee receivedover the year ended December 31, 2018 due to increased expenses primarily for our clinical programs combined with the lack of reimbursement for research and development services we used to receive under certain key collaborations which we reacquired in 2018.
Our 2018 cash pursuantoutflows from operations increased $20.5 million over the year ended December 31, 2017 primarily due to a decrease in revenues from research and development services for certain of our collaborations as we redeployed certain resources towards supporting prospective new collaboration. During 2015, we received net cash receipts for technology access feesplatforms and partnering opportunities and began to focus more on the further

development of $85.5 million pursuant to new collaborationsrelationships and structures that provide us with Ares Trading, ZIOPHARM,more control and Intrexon Energy Partners II. Our net loss was $88.0 million, which includeownership over the following significant noncash expenses that total $116.0 million: (i) $59.6 million of common stock issued to MD Anderson for the in-license of certain technologies, (ii) $38.7 million of stock-based compensation expensedevelopment process and (iii) $17.7 million of depreciation and amortization expense, partially offset by $66.9 million of noncash unrealized and realized gains on our equity securities.commercialization path.
Cash flows from investing activities:
During 2019, we received proceeds of $111.4 million from the maturities and sales of investments, net of purchases; $21.6 million proceeds from the sale of our AquaBounty securities, and we used $37.9 million for purchases of property, plant and equipment.
During 2018, we used $112.7 million for purchases of short-term investments, net of maturities; $41.6 million for purchases of property, plant and equipment; and $16.6 million for investments in our JVs, and we received $15.5 million in an asset acquisition.
During 2017, we received proceeds of $174.5 million from the maturity of short-term investments, and we used $46.7 million for purchases of property, plant and equipment,equipment; $14.2 million for the purchase of a land-based aquaculture facility by AquaBounty,AquaBounty; and $11.2 million for investments in our JVs. During 2016, we used $31.6 million for purchases of property, plant and equipment, $11.5 million for investments in our JVs, $7.2 million to acquire the assets of Old EnviroFlight, $3.0 million for the issuances of notes receivable, $2.3 million for purchases of equity securities and warrants of certain of our collaborators, and we received $26.7 million of net proceeds from the maturity of short-term investments. During 2015, we used $123.9 million, net of cash received, for the acquisitions of ActoGeniX, Okanagan and Oxitec, $93.6 million for net purchases of short-term and long-term investments, $17.1 million for the purchase of equity securities and warrants pursuant to public financings by three of our collaborators, $13.4 million for investments in our JVs, and $12.7 million for purchases of property, plant and equipment.
Cash flows from financing activities:
During 2019, we received $6.6 million net proceeds from public offerings through our consolidated subsidiary, AquaBounty, which we deconsolidated in April 2019.
During 2018, we received $219.9 million net proceeds from the issuance of long-term debt and $88.0 million net proceeds from public financings.
During 2017, we received $13.7 million proceeds from a private placement of our common stock with an affiliate of Third Security and paid $8.7 million of deferred consideration to former shareholders of acquired businesses. During 2016, we received $19.2 million from stock option exercises and paid $6.7 million of deferred consideration to former shareholders of an acquired business. During 2015, we received $328.2 million of net proceeds from our public offerings in January and August.
Future capital requirements
We establishedbelieve our strategyexisting liquid assets, including the cash received from the Transactions and business model of commercializing our technologies through collaborations with development expertise in 2010, and we consummated our first collaborationthe private placement in January 2011. We believe that our efforts to partner our more

mature programs and capabilities and to continue to consummate collaborations across our various industries will result in additional upfront, milestone and cost recovery payments in the future.
We believe that our existing cash and cash equivalents, short-term investments, cash expected to be received from our current collaborators and for sales of products and services provided by our consolidated subsidiaries, proceeds received from any issuance of Series A Preferred Stock under the Preferred Stock Facility, and proceeds from our January 2018 underwritten public offering2020, will enable us to fund our operating expenses and capital expenditure requirements for at least the next 12 months.
We have based our estimates on assumptions that may prove to be wrong, and we may use our available capital resources sooner than we currently expect. Our future capital requirements will depend on many factors, including:
progress in our research and development programs, as well as the magnitude of these programs;
the timing of regulatory approval of products of our collaborations and operations;
the timing, receipt and amount of any payments received in connection with strategic transactions;
the timing, receipt, and amount of upfront, milestone, and other payments, if any, from present and future collaborators, if any;
the timing, receipt, and amount of sales and royalties, if any, from our potential products;
our ability to maintain or improve the volume and pricing of our current product and service offerings and to develop new offerings, including those which may incorporate new technologies;candidates;
the timing and capital requirements to scale up our various product candidates and service offerings and customer acceptance thereof;
our ability to maintain and establish additional collaborative arrangements and/or new strategic initiatives;
the timing of regulatory approval of products of our collaborations and operations;
the resources, time, and cost required for the preparation, filing, prosecution, maintenance, and enforcement of patent claims;
investments we may make in current and future collaborators, including JVs;our intellectual property portfolio;
strategic mergers and acquisitions, if any, including both the upfront acquisition cost as well as the cost to integrate, maintain, and expand the strategic target; and
the costs associated with legal activities, including litigation, arising in the course of our business activities and our ability to prevail in any such legal disputes.

Until such time, if ever, as we can regularly generate positive operating cash flows, we mayplan to finance our cash needs through a combination of equity offerings, including issuances from the Preferred Stock Facility; debt financings;financings, government, or other third-party funding;funding, strategic alliances, sales of assets, and licensing arrangements. To the extent that we raise additional capital through the sale of equity or convertible debt securities, the ownership interests of our common shareholders will be diluted, and the terms of these securities may include liquidation or other preferences that adversely affect the rights of our common shareholders. Our current stock price may make it more difficult to pursue equity financings and lead to substantial dilution if the price of our common stock does not increase. Debt financing, if available, may involve agreements that include covenants limiting or restricting our ability to take specific actions, such as incurring additional debt, making capital expenditures, or declaring dividends. If we raise additional funds through government or other third-party funding, marketing and distribution arrangements or other strategic transactions, collaborations, or licensing arrangements with third parties, we may have to relinquish valuable rights to our technologies, future revenue streams, research programs, or product candidates, or to grant licenses on terms that may not be favorable to us.

We are subject to a number of risks similar to those of other companies conducting high-risk, early-stage research and development of product candidates. Principal among these risks are dependence on key individuals and intellectual property, competition from other products and companies, and the technical risks associated with the successful research, development, and clinical manufacturing of its product candidates. Our success is dependent upon our ability to continue to raise additional capital in order to fund ongoing research and development, obtain regulatory approval of our products, successfully commercialize our products, generate revenue, meet our obligations and, ultimately, attain profitable operations.
See the section entitled "Risk Factors" for additional risks associated with our substantial capital requirements.
Contractual obligations and commitments
The following table summarizes our significant contractual obligations and commitments from continuing operations as of December 31, 20172019 and the effects such obligations are expected to have on our liquidity and cash flows in future periods:
Total Less Than 1 Year 1-3 Years 3-5 Years More Than 5 YearsTotal Less Than 1 Year 1-3 Years 3-5 Years More Than 5 Years
(In thousands)(In thousands)
Operating leases$67,887
 $7,964
 $18,301
 $15,578
 $26,044
$37,361
 $7,071
 $14,445
 $11,565
 $4,280
Purchase commitments15,802
 5,067
 10,735
 
 
Long term debt5,905
 502
 773
 1,192
 3,438
Convertible debt (1)256,211
 31,211
 25,000
 200,000
 
Cash interest payable on convertible debt28,000
 10,500
 14,000
 3,500
 
Long-term debt, excluding convertible debt4,221
 460
 669
 724
 2,368
Contingent consideration585
 
 585
 
 
585
 585
 
 
 
Total$90,179
 $13,533
 $30,394
 $16,770
 $29,482
$326,378
 $49,827
 $54,114
 $215,789
 $6,648
(1)Of the $256.2 million convertible debt, $200.0 million may be converted into Precigen common stock, and $56.2 million may be converted into either Precigen common stock or the stock of certain of our subsidiaries. See "Notes to the Consolidated Financial Statements - Note 12" appearing elsewhere in this Annual Report for further discussion of these instruments.
In addition to the obligations in the table above, as of December 31, 20172019 we also have the following significant contractual obligations from continuing operations described below.
In conjunction with the formation of our JVs, we committed to making future capital contributions of at least $45.0 million to the JVs, subject to certain conditions and limitations. As of December 31, 2017,2019, our remaining capital contribution commitments to our JVs were $19.2$14.2 million. These future capital contributions are not included in the table above due to the uncertainty of the timing and amounts of such contributions.
We are party to in-licensed research and development agreements with various academic and commercial institutions where we could be required to make future payments for annual maintenance fees as well as for milestones and royalties we might receive upon commercial sales of products whichthat incorporate their technologies. These agreements are generally subject to termination by us and therefore no amounts are included in the tables above. As of December 31, 2017,2019, we also had research and development commitments with third parties totaling $10.7$15.4 million that had not yet been incurred.
In January 2015, we and ZIOPHARM jointly entered into a license agreement with MD Anderson whereby we received an exclusive license to certain technologies owned by MD Anderson. ZIOPHARM will receive access to these technologies pursuant to the terms of our ECC. We and ZIOPHARM are obligated to reimburse MD Anderson for out of pocket expenses for maintaining patents covering the licensed technologies. These reimbursements are not included in the table above due to the uncertainty of the timing and amounts of such reimbursements.
As part of our August 2014 acquisition of Trans Ova, we agreed to pay a portion of certain cash proceeds received from the litigation with XY. These amounts are not included in the table above due to the uncertainty of whether and when any amounts may be due.
In conjunction with a prior transaction associated with Trans Ova's subsidiary, ViaGen, in September 2012, we may be obligated to make certain future contingent payments to the former equity holders of ViaGen, up to a total of $3.0 million if certain revenue targets, as defined in the share purchase agreement, are met. This amount is not included in the table above due to the uncertainty of when we will make any of these future payments, if ever.
In January 2009, AquaBounty was awarded a grant to provide funding of a research and development project from the Atlantic Canada Opportunities Agency, a Canadian government agency. Amounts claimed by AquaBounty must be repaid in the form of a 10 percent royalty on any products commercialized out of this research and development project until fully paid. Because the timing of commercialization is subject to additional regulatory considerations, the timing of repayment is uncertain. AquaBounty claimed all amounts available under the grant, resulting in total long term debt of $2.1 million on our consolidated financial statements as of December 31, 2017. This amount is not included in the table above due to the uncertainty of the timing of repayment.
Net operating losses
As of December 31, 2017,2019, we had net operating loss carryforwards of approximately $244.3$568.8 million for U.S.United States federal income tax purposes available to offset future taxable income, including $316.1 million generated after 2017, United States capital loss carryforwards of $111.6 million, and U.S.United States federal and state research and development tax credits of $7.7approximately $9.6 million, prior to consideration of annual limitations that may be imposed under Section 382. TheseNet operating loss carryforwards generated prior to 2018 begin to expire in 2022.2022 and capital loss carryforwards will expire if unutilized by 2024. Our direct foreign subsidiaries included in continuing operations have foreign loss carryforwards of approximately $151.4$72.8 million, most of which

do not expire. Excluding certain deferred tax liabilities totaling $15.6$2.8 million, our remaining net deferred tax assets, which primarily relate to these loss carryforwards, are offset by a valuation allowance due to our history of net losses.
As a result of our past issuances of stock, as well as due to prior mergers and acquisitions, certain of Intrexon'sour net operating losses have been subject to limitations pursuant to Section 382. As of December 31, 2017, Intrexon2019, Precigen has utilized all net operating losses subject to Section 382 limitations, other than those losses inherited via acquisitions. As of December 31, 2017,2019, approximately $33.6$42.1 million of domestic net operating losses were inherited via acquisition, including approximately $13.4 million related to our acquisition of GenVec,acquisitions and are limited based on the value of the target at the time of the transaction. Future changes in stock ownership may also trigger an ownership change and, consequently, a Section 382 limitation.
We do not file a consolidated income tax return with AquaBounty. As of December 31, 2017, AquaBounty had loss carryforwards for federal and foreign income tax purposes of approximately $28.2 million and $15.7 million, respectively, and foreign research tax credits of $2.8 million available to offset future taxable income, prior to consideration of annual limitations that may be imposed under Section 382 or analogous foreign provisions. These carryforwards will begin to expire in 2018. As a result of our ownership in AquaBounty passing 50 percent in 2013, an annual Section 382 limitation of approximately $0.9 million per year will apply to losses and credits carried forward by AquaBounty from prior years, which are also subject to prior Section 382 limitations.
The Tax Act introducesintroduced certain limitations on utilization of net operating losses that are generated after 2017, generally limiting utilization of those losses to 80 percent of future annual taxable income. However, net operating losses generated after 2017 will generally have an indefinite carryforward period.
Off-balance sheet arrangements
We did not have during the periods presented, and we do not currently have, any off-balance sheet arrangements, other than operating leases and purchase commitments as mentioned above, as defined under SEC rules.
Critical accounting policies and estimates
Our management's discussion and analysis of our financial condition and results of operations is based on our consolidated financial statements, which we have prepared in accordance with U.S. GAAP. The preparation of these consolidated financial statements requires us to make estimates and assumptions that affect the reported amounts of assets and liabilities and the disclosure of contingent assets and liabilities at the date of the financial statements, as well as the reported revenues and expenses during the reporting periods. We evaluate these estimates and judgments on an ongoing basis. We base our estimates on historical experience and on various other factors that we believe are reasonable under the circumstances, the results of which form the basis for making judgments about the carrying value of assets and liabilities that are not readily apparent from other sources. Our actual results may differ from these estimates under different assumptions or conditions.
While our significant accounting policies are more fully described in "Notes to the Consolidated Financial Statements - Note 2 to our consolidated financial statements2" appearing elsewhere in this Annual Report, we believe that the following accounting policies are the most critical for fully understanding and evaluating our financial condition and results of operations.
Revenue recognition (for the years ended December 31, 2019 and 2018)
Effective January 1, 2018, we apply ASC 606. Under ASC 606, we recognize revenue when our customer obtains control of the promised goods or services, in an amount that reflects the consideration that we expect to receive in exchange for those goods or services. To determine revenue recognition for arrangements that are within the scope of ASC 606, we perform the following five steps: (i) identify the contract(s) with a customer, (ii) identify the promises and distinct performance obligations in the contract, (iii) determine the transaction price, (iv) allocate the transaction price to the performance obligations in the contract, and (v) recognize revenue when (or as) we satisfy the performance obligations.
Collaboration and licensing revenues
We generatehave historically generated collaboration and licensing revenues through agreements with collaborators, known as ECCs, and licensing agreements whereby the collaborators or the licensee obtain exclusive access to our proprietary technologies for use in the research, development and commercialization of products and/or treatments in a contractually specified field of use. Generally, the terms of these agreements provide that we receive some or all of the following: (i) upfront payments upon consummation of the agreement; (ii) reimbursements for costs incurred by us for research and development and/or

manufacturing efforts related to specific applications provided for in the agreement; (iii) milestone payments upon the achievement of specified development, regulatory and commercial activities; and (iv) royalties on sales of products arising from the collaboration or licensing agreement. The agreement typically continues in perpetuity unless terminated and each of our collaborators retains a right to terminate the agreement upon providing us written notice a certain period of time prior to such termination, generally 90 days.
Our collaboration and licensing agreements typically contain multiple promises, including technology licenses, research and development services and, in certain cases, manufacturing services. We determine whether each of the promises is a distinct performance obligation. As the nature of the promises in our collaboration and licensing agreements are highly integrated and interrelated, we typically combine most of our promises into a single performance obligation. Because we are performing research and development services during early-stage development, the services are integral to the utilization of the technology license. Therefore, we have determined that the technology license and research and development services are typically inseparable from each other during the performance period of our collaboration and licensing agreements. Options to acquire additional services are considered to determine if they constitute material rights. Contingent manufacturing services that may be provided under certain of our agreements are considered to be a separate future contract and not part of the current collaboration or licensing agreement.
At contract inception, we determine the transaction price, including fixed consideration and any estimated amounts of variable consideration. The upfront payment received upon consummation of the agreement is fixed and nonrefundable. Variable consideration is subject to a constraint and amounts are included in the transaction price to the extent that it is probable that a significant reversal in the amount of cumulative revenue recognized will not occur when the uncertainty associated with the variable consideration is subsequently resolved. Variable consideration may include reimbursements for costs incurred by us for research and development efforts; milestone payments upon the achievement of certain development, regulatory and commercial activities; and royalties on sales of products arising from the collaboration or licensing agreement. We determine the initial transaction price and exclude variable consideration that is otherwise constrained pursuant to the guidance in ASC 606.
The transaction price is allocated to the performance obligations in the agreement based on the standalone selling price of each performance obligation. We typically group the promises in our collaboration and licensing agreements into one performance obligation so the entire transaction price relates to this single performance obligation. The technology license included in the single performance obligation is considered a functional license. However, it is typically combined into a single performance obligation as we provide interrelated research and development services along with other obligations over an estimated period of performance. We utilize judgment to determine the most appropriate method to measure our progress of performance under the agreement, primarily based on inputs necessary to fulfill the performance obligation. We evaluate our measure of progress to recognize revenue each reporting period and, if necessary, adjust the measure of performance and related revenue recognition. Our measure of performance and revenue recognition involves significant judgment and assumptions, including, but not limited to, estimated costs and timelines to complete our performance obligations. We evaluate modifications and amendments to our contracts to determine whether any changes should be accounted for prospectively or on a cumulative catch-up basis.
Payments received for cost reimbursements for research and development efforts are recognized as revenue as the services are performed, in connection with the single performance obligation discussed above. The reimbursements relate specifically to our efforts to provide services and the reimbursements are consistent with what we would typically charge other collaborators for similar services.
We assess the uncertainty of when and if the milestone will be achieved to determine whether the milestone is included in the transaction price. We then assess whether the revenue is constrained based on whether it is probable that a significant reversal of revenue would not occur when the uncertainty is resolved.
Royalties, including sales-based milestones, received under the agreements will be recognized as revenue when sales have occurred because we apply the sales- or usage-based royalties recognition exception provided for under ASC 606. We determined the application of this exception is appropriate because at the time the royalties are generated, the technology license granted in the agreement is the predominant item to which the royalties relate.
As we receive upfront payments in our collaboration and licensing agreements, we evaluate whether any significant financing components exist in our collaboration and licensing agreements. Based on the nature of our collaboration and licensing agreements, there are no significant financing components as the purpose of the upfront payment is not to provide financing. The purpose is to provide the collaborator with assurance that we will complete our obligations under the contract or to secure the right to a specific product or service at the collaborator's discretion. In addition, the variable payments generally align with

the timing of performance or the timing of the consideration varies on the basis of the occurrence or nonoccurrence of a future event that is not substantially within the control of the collaborator or us.
From time to time, we and certain collaborators may cancel our agreements, relieving us of any further performance obligations under the agreement. Upon such cancellation or when we have determined no further performance obligations are required of us under an agreement, we recognize any remaining deferred revenue as revenue.
We recognized $14.1 million and $69.5 million of collaboration and licensing revenues in the years ended December 31, 2019 and 2018, respectively. As of December 31, 2019 and 2018, we have $50.6 million and $54.3 million, respectively, of deferred revenue related to our receipt of upfront and milestone payments.
Product and service revenues
Our product and service revenues are generated primarily through Trans Ova and include sales of advanced reproductive technologies, including our bovine embryo transfer and in vitro fertilization processes and from genetic preservation and sexed semen processes and applications of such processes to other livestock, as well as sales of livestock and embryos produced using these processes and used in production. As each promised product or service is distinct, we recognize the transaction price as revenue at a point in time when control of the promised product is transferred to the customer or when the promised service is rendered. Payment terms are typically due within 30 days of invoicing, which occurs prior to or when revenue is recognized. We recognized $68.7 million and $75.2 million of these product and service revenues from Trans Ova for the years ended December 31, 2019 and 2018, respectively.
Revenue recognition (for the year ended December 31, 2017)
Collaboration and licensing revenues
We have historically generated collaboration and licensing revenue through the execution of agreements with collaborators and licensing agreements whereby the collaborators or the licensees obtain exclusive access to our proprietary technologies for use in the research, development, and commercialization of products and/or treatments in a contractually specified field of use. Generally, the terms of these agreements provide that we receive some or all of the following: (i) upfront payments upon consummation of the agreement; (ii) reimbursements for costs incurred by us for research and development and/or manufacturing efforts related to specific applications provided for in the agreement; (iii) milestone payments upon the achievement of specified development, regulatory and commercial activities; and (iv) royalties on sales of products arising from the collaboration or licensing agreement.
Our collaborations and licensing agreements typically contain multiple elements, or deliverables, including technology licenses, research and development services, and in certain cases manufacturing services. We identify the deliverables within the agreements and evaluate which deliverables represent separate units of accounting. Analyzing the agreements to identify deliverables requires the use of judgment. A deliverable is considered a separate unit of accounting when the deliverable has value to the collaborator or licensee on a standalone basis based on the consideration of the relevant facts and circumstances for each agreement.

Consideration received is allocated at the inception of the agreement to all identified units of accounting based on their relative selling price. When available, the relative selling price for each deliverable is determined using vendor specific objective evidence, or VSOE, of the selling price or third-party evidence of the selling price, if VSOE does not exist. If neither VSOE nor third-party evidence of the selling price exists, we use our best estimate of the selling price for the deliverable. The amount of allocable consideration is limited to amounts that are fixed or determinable. The consideration received is allocated among the separate units of accounting, and the applicable revenue recognition criteria are applied to each of the separate units. We recognize the revenue allocated to each unit of accounting as we deliver the related goods or services. If we determine that certain deliverables should be treated as a single unit of accounting, then the revenue is recognized using either a proportional performance or straight-line method, depending on whether we can reasonably estimate the level of effort required to complete our performance obligations under an arrangement and whether such performance obligations are provided on a best-efforts basis. As we cannot reasonably estimate our performance obligations related to our collaborators or licensees, we recognize revenue on a straight-line basis over the period we expect to complete our performance obligations, which is reevaluated each reporting period.
The terms of our agreements may provide for milestone payments upon achievement of certain defined events. We apply the Milestone Method for recognizing milestone payments. Under the Milestone Method, we recognize consideration that is

contingent upon the achievement of a milestone in its entirety as revenue in the period in which the milestone is achieved only if the milestone is substantive in its entirety. A milestone is considered substantive when it meets all of the following criteria:
The consideration is commensurate with either the entity's performance to achieve the milestone or the enhancement of the value of the delivered item or items as a result of a specific outcome resulting from the entity's performance to achieve the milestone;
The consideration relates solely to past performance; and
The consideration is reasonable relative to all of the deliverables and payment terms within the arrangement.
In the event that a milestone is not considered substantive, we recognize the milestone consideration as revenue using the same method applied to the upfront payments.
Research and development services are a deliverable satisfied by us in accordance with the terms of the collaboration and licensing agreements and we consider these services to be inseparable from the license to the core technology; therefore, reimbursements of services performed are recognized as revenue. Because reimbursement (i) is contingent upon performance of the services by us, (ii) does not include a profit component, and (iii) does not relate to any future deliverable, the revenue is recognized during the period in which the related services are performed and collection of such amounts is reasonably assured. Payments received for manufacturing services will be recognized when the earnings process related to the manufactured materials has been completed. Royalties to be received under the agreements will be recognized as earned.
From time to time, we and certain collaborators may cancel the agreements, relieving us of any further performance obligations under the agreement. When no further performance obligations are required of us under an agreement, we recognize anythe remaining balance of deferred revenue.
We recognized $145.6 million, $109.9 million and $87.8$134.6 million of collaboration and licensing revenues in the yearsyear ended December 31, 2017, 20162017.
Product and 2015, respectively. As of December 31, 2017 and 2016, we have $230.5 million and $297.9 million, respectively, of deferred revenue related to our receipt of upfront and milestone payments.service revenues
We generateOur product and service revenues are generated primarily through sales of products or services which are created from technologies developed or owned by us. Our current offeringsTrans Ova and include sales of advanced reproductive technologies, including our bovine embryo transfer and in vitro fertilization processes and from genetic preservation and sexed semen processes and applications of such processes to other livestock, as well as sales of livestock and embryos produced using these processes and used in production. Revenue is recognized when (i) persuasive evidence of an arrangement exists, (ii) services have been rendered or delivery has occurred such that risk of loss has passed to the customer, (iii) the price is fixed or determinable, and (iv) collection from the customer is reasonably assured. We recognized $82.3 million, $77.9 million, and $83.4$78.8 million of these product and service revenues from Trans Ova for the yearsyear ended December 31, 2017, 2016 and 2015, respectively.
Effective January 1, 2018, we adopted Accounting Standards Update (ASU) 2014-09, as amended by ASU 2015-14, Revenue from Contracts with Customers (Topic 606), which clarifies the principles for recognizing revenue and develops a common revenue standard for U.S. GAAP. Topic 606 outlines a single comprehensive model for us to use in accounting for our revenues arising from contracts with customers and supersedes the revenue recognition discussed above. See Note 2 to our consolidated

financial statements appearing elsewhere in this Annual Report for a description of this recent accounting pronouncement and anticipated impact to our financial statements.
Valuation of investments in equity securities
Fair value is the price that would be received to sell an asset or paid to transfer a liability in an orderly transaction between market participants at the measurement date. As such, fair value is a market-based measurement that should be determined based on assumptions that market participants would use in pricing an asset and liability. We use a three-tier fair value hierarchy to prioritize the inputs used in our fair value measurements. These tiers include: Level 1, defined as observable inputs such as quoted prices in active markets for identical assets and liabilities, which includes our cash equivalents and certain investments in equity securities of our publicly held collaborators; Level 2, defined as inputs other than quoted prices included in Level 1 that are observable for the asset or liability either directly or indirectly, which includes our short-term and long-term investments and certain investments in equity securities of our publicly held collaborators; and Level 3, defined as unobservable inputs for the asset or liability used to measure fair value to the extent that observable inputs are not available.
We hold equity securities received and/or purchased from certain collaborators. For each collaborator where we own equity securities, we make an accounting policy election to present them either (i) at the fair value at the end of each reporting period or (ii) using the cost or equity method depending on our level of influence. Other than investments accounted for using the equity method, we have elected the fair value option to account for equity securities held in these collaborators. These equity securities are recorded at fair value at each reporting date and are subject to market price volatility. Unrealized gains and losses resulting from fair value adjustments are reported in the consolidated statement of operations. The fair value of these equity securities is subject to fluctuation in the future due to the volatility of the stock market, changes in general economic conditions and changes in the financial conditions of these collaborators. Equity securities that we do not intend to sell within one year are classified as noncurrent in the consolidated balance sheet. As of December 31, 2017 and 2016, our equity securities in our collaborators are valued at $15.1 million and $23.5 million, respectively.
We record the fair value of securities received on the date the collaboration is consummated or the milestone is achieved using the closing, quoted price of the collaborator's security on that date, assuming the transfer of the consideration is considered perfunctory. If the transfer of the consideration is not considered perfunctory, we consider the specific facts and circumstances to determine the appropriate date on which to evaluate fair value. We also evaluate whether any discounts for trading restrictions or other basis for lack of marketability should be applied to the fair value of the securities at inception of the collaboration. In the event we conclude that a discount should be applied, the fair value of the securities is adjusted at inception of the collaboration and re-evaluated at each reporting period thereafter.
We account for investments in which we have the ability to exercise significant influence over, but not control, the operating activities of the investee using the equity method or election of the fair value option. If the fair value option is elected, the investment is accounted for as described for equity securities above. Under the equity method, we include our pro-rata share of the investee's operating results, adjusted for accretion of basis difference, in our consolidated statement of operations with the corresponding increase or decrease applied to the carrying value of the investment. We account for investments in our JVs and start-up entities backed by Harvest using the equity method of accounting since we have the ability to exercise significant influence, but not control, over the operating activities of these entities.
Investments in preferred stock
We hold preferred stock in certain of our collaborators, most of which may be converted to common stock as described in Note 7 to our consolidated financial statements included appearing elsewhere in this Annual Report. We elected the fair value option to account for our investments in preferred stock whereby the value of preferred stock is adjusted to fair value as of each reporting date and unrealized gains and losses are reported in the consolidated statement of operations.  These investments are subject to fluctuation in the future due to, among other things, the likelihood and timing of conversion of certain of the preferred stock into common stock, the volatility of each collaborator's common stock, and changes in general economic and financial conditions of the collaborators. These Level 3 investments are classified as noncurrent in the consolidated balance sheet since we do not intend to sell the investment nor expect the investments that are convertible into common stock to be converted within one year. As of December 31, 2017 and 2016, our investments in preferred stock are valued at $161.2 million and $129.5 million, respectively.
We are entitled to monthly dividends and record dividend income. We recorded $16.8 million and $7.4 million of dividend income in 2017 and 2016, respectively.

Valuation allowance for net deferred tax assets
We record a valuation allowance to offset any net deferred tax assets if, based upon the available evidence, it is more likely than not that we will not recognize some or all of the deferred tax assets. We have had a history of net losses since inception, and as a result, we have established a 100 percent valuation allowance for our net domestic and certain foreign deferred tax assets. If circumstances change and we determine that we will able to realize some or all of these net deferred tax assets in the future, we will record an adjustment to the valuation allowance.
Additionally, enacted changes in domestic or foreign tax rates, such as those as part of the Tax Act, that require remeasurement of our deferred tax assets and liabilities, also require remeasurement of our valuation allowance.
Consolidation of variable interest entities
We identify entities that (i) that do not have sufficient equity investment at risk to permit the entity to finance its activities without additional subordinated financial support, or (ii) in which the equity investors lack an essential characteristic of a controlling financial interest as variable interest entities, or "VIEs". We perform an initial and on-going evaluation of the entities with which we have variable interests to determine if any of these entities are VIEs. If an entity is identified as a VIE, we perform an assessment to determine whether we have both: (i) the power to direct activities that most significantly impact the VIE's economic performance, and (ii) have the obligation to absorb losses from or the right to receive benefits of the VIE that could potentially be significant to the VIE. If both of these criteria are satisfied, we are identified as the primary beneficiary of the VIE. As of December 31, 2017 and 2016, we determined that certain of our collaborators and JVs as well as Harvest were VIEs. We were not the primary beneficiary for these entities since we did not have the power to direct the activities that most significantly impact the economic performance of the VIEs. Our aggregate investment balance of these VIEs as of December 31, 2017 and 2016 was $185.3 million and $159.1 million, respectively, which represents our maximum risk of loss related to the identified VIEs.2017.
Valuation of goodwill and long-lived assets
We evaluate long-lived assets to be held and used, which include property, plant and equipment and intangible assets subject to amortization, for impairment whenever events or changes in circumstances indicate that the carrying amount of the assets may not be recoverable. Conditions that would necessitate an impairment assessment include a significant decline in the observable market value of an asset, a significant change in the extent or manner an asset is used, or a significant adverse change that would indicate that the carrying amount of an asset or group of assets is not recoverable.
Goodwill and indefinite-lived intangible assets, which include in-process research and development, areis tested for impairment annually, or more frequently if events or circumstances between annual tests indicate that the assets may be impaired. We perform a qualitative assessment to determine whether it is more-likely-than-not that the fair value of a reporting unit is less than its carrying amount prior to performing the goodwill impairment test. If this is the case, the goodwill impairment test is required. If it is more-likely-than-not that the fair value of a reporting unit is greater than the carrying amount, the quantitative goodwill impairment test is not required. If the quantitative goodwill impairment test is required or elected to be performed, first, the fair value of the reporting unit is compared with its carrying amount (including goodwill). Impairment losses on goodwill and indefinite-lived intangible assets are recognized based solely on a comparison of their fair value to carrying value, without consideration of any recoverability test. We monitor
The fair value of the progressionreporting units are primarily determined based on the income approach. The income approach is a valuation technique in which fair value is based from forecasted future cash flows, discounted at the appropriate rate of return commensurate with the risk as well as current rates of return for equity and debt capital as of the valuation date. The forecast used in our estimation of fair value was developed by management based on historical operating results, incorporating

adjustments to reflect management's planned changes in operations and market considerations. The discount rate utilizes a risk adjusted weighted average cost of capital. To assess the reasonableness of the calculated reporting unit fair values, we compare the sum of the reporting units' fair values to our market capitalization (per share stock price times the number of shares outstanding) and calculate an implied control premium (the excess of the sum of the reporting units' fair values over the market capitalization) and then assess the reasonableness of our in-process research and development, as the likelihood of success is contingent upon regulatory approval. implied control premium.
During the year ended December 31, 2017,2019, we recorded $16.8$30.8 million of impairment charges from continuing operations to write down the values of goodwill and in-process research and development recorded in certain of our acquisitions.other long-lived assets. See additional discussion regarding this impairment in Note 11"Notes to our consolidated financial statementsthe Consolidated Financial Statements - Notes 10 and 11" appearing elsewhere in this Annual Report. We did not record any impairment charges during the years ended December 31, 2016 or 2015.
Stock-based compensation
We record the fair value of stock options issued to employees and non-employees as of the grant date as stock-based compensation expense. Stock-based compensation expense for employees and non-employees is recognized over the requisite service period, which is typically the vesting period. We recorded stock-based compensation expense of $41.6 million, $42.2 million and $38.7 million for the years ended December 31, 2017, 2016 and 2015, respectively. We utilize the Black-Scholes option-pricing model to estimate the grant-date fair value of all stock options. The Black-Scholes option-pricing model requires the use of assumptions for estimated expected volatility, estimated expected term of stock options, risk-free rate, estimated expected dividend yield, and the fair value of the underlying common stock at the date of grant. Because we do not have sufficient history to estimate the expected volatility of our common stock price, expected volatility is based on a blended approach which utilizes the volatility of our common stock and the volatility of peer public entities that are similar in size and industry. We estimate the expected term of all stock options based on previous history of exercises. The risk-free rate is based on the U.S. Treasury yield curve in effect at the time of grant for the expected term of the option. The expected dividend yield is 0 percent as we do not expect to declare cash dividends in the near future. The fair value of the underlying common stock is determined based on the quoted market price of our common stock on the NYSE. Forfeitures are recorded when incurred. The

assumptions used in the Black-Scholes option-pricing model for the years ended December 31, 2017, 2016 and 2015 are set forth below:
 Year Ended December 31,
 2017 2016 2015
Valuation Assumptions     
Expected dividend yield0% 0% 0%
Expected volatility57%—60% 59%—60% 59%—62%
Expected term (years)6.25 6.25 6.25
Risk-free interest rate1.89%—2.27% 1.23%—2.17% 1.56%—1.95%
We had 11,382,747 options outstanding as of December 31, 2017 of which 5,306,697 were exercisable. We had 11,640,383 options outstanding as of December 31, 2016 of which 3,418,035 were exercisable. Total unrecognized stock-based compensation expense related to non-vested awards as of December 31, 2017 and 2016, was $69.0 million and $94.0 million, respectively, and is expected to be recognized over a weighted-average period of approximately two and three years, respectively. The weighted average grant date fair value for options granted in 2017, 2016 and 2015 was $12.19, $16.28 and $25.96, respectively.
Inventory
The Company's inventory primarily includes adult female cows which are used in certain production processes and are recorded at acquisition cost using the first-in, first-out method or at market, whichever is lower.  Work-in-process inventory includes allocations of production costs and facility costs on gestating livestock and are recorded at the lower of cost or market.  Significant declines in the price of cows could result in unfavorable adjustments to inventory balances. As of December 31, 2017 and 2016, total inventory was $20.5 million and $21.1 million, respectively.
Recent accounting pronouncements
See "Notes to the Consolidated Financial Statements - Note 2 to our consolidated financial statements2" appearing elsewhere in this Annual Report for a description of recent accounting pronouncements applicable to our business, which is incorporated herein by reference.
Item 7A.Quantitative and Qualitative Disclosures About Market Risk
The following sections provide quantitative information on our exposure to interest rate risk, stock price risk, and foreign currency exchange risk. We make use of sensitivity analyses whichthat are inherently limited in estimating actual losses in fair value that can occur from changes in market conditions.
Interest rate risk
We had cash, cash equivalents and short-term and long-term investments of $74.4$75.1 million and $243.2$216.5 million as of December 31, 20172019 and 2016,2018, respectively. Our cash and cash equivalents and short-term and long-term investments consist of cash, money market funds, U.S.United States government debt securities, and certificates of deposit. The primary objectives of our investment activities are to preserve principal, maintain liquidity, and maximize income without significantly increasing risk. Our investments consist of U.S.United States government debt securities and certificates of deposit, which may be subject to market risk due to changes in prevailing interest rates that may cause the fair values of our investments to fluctuate. We believe that a hypothetical 100 basis point increase in interest rates would not materially affect the fair value of our interest-sensitive financial instruments and any such losses would only be realized if we sold the investments prior to maturity.
Investments in publicly traded companies' common stock
We have common stock investments in several publicly traded companies that are subject to market price volatility. We have adopted the fair value method of accounting for these investments, except for our investment in AquaBounty as further described below, and therefore, have recorded them at fair value at the end of each reporting period with the unrealized gain or loss recorded as a separate component of other income (expense), net, for the period. As of December 31, 2017 and 2016, the original aggregate cost basis of these investments was $102.6 million and $104.0 million, respectively, and the market value was $15.1 million and $23.5 million, respectively. The fair value of these investments is subject to fluctuation in the future due to the volatility of the stock market, changes in general economic conditions and changes in the financial conditions of these

companies. The fair value of these investments as of December 31, 2017 would be approximately $16.6 million and $12.1 million, respectively, based on a hypothetical 10 percent increase or 20 percent decrease in the value of the investments. The fair value of these investments as of December 31, 2016 would be approximately $25.9 million and $18.8 million, respectively, based on a hypothetical 10 percent increase or 20 percent decrease in the value of the investments.
The common stock of AquaBounty commenced trading on the NASDAQ Stock Market in January 2017 and ceased trading on the London Stock Exchange in May 2017. As of December 31, 2017, we owned 5,162,277 shares or approximately 58 percent; as a result of the AquaBounty underwritten public offering in January 2018, our ownership interest dropped to 53 percent. The fair value of our investment in AquaBounty as of December 31, 2017 and 2016, based on AquaBounty's quoted closing price on the NASDAQ Stock Market and London Stock Exchange, respectively, was $18.2 million and $40.1 million, respectively. The fair value of our investment in AquaBounty as of December 31, 2017 would be approximately $20.0 million and $14.6 million, respectively, based on a hypothetical 10 percent increase or 20 percent decrease in the share price of AquaBounty. The fair value of our investment in AquaBounty as of December 31, 2016 would be approximately $44.1 million and $32.1 million, respectively, based on a hypothetical 10 percent increase or 20 percent decrease in the share price of AquaBounty.
Investments in publicly traded companies' preferred stock
We have preferred stock investments in several publicly traded companies, most of which may be converted to common stock in the future. We have adopted the fair value method of accounting for these investments whereby the value of preferred stock is adjusted to fair value as of each reporting date. As of December 31, 2017 and 2016, the original cost basis of these investments, including dividends, was $148.3 million and $127.4 million, respectively, and the fair value of these investments was $161.2 million and $129.5 million, respectively. The fair value of these investments is subject to fluctuation in the future due to, among other things, the likelihood and timing of conversion of certain of the preferred stock into common stock, the volatility of each company's common stock, and changes in general economic and financial conditions of these companies. The fair value of these investments as of December 31, 2017 would be approximately $177.3 million and $129.0 million, respectively, based on a hypothetical 10 percent increase or 20 percent decrease in the value of the investments. The fair value of these investments as of December 31, 2016 would be approximately $142.5 million and $103.6 million, respectively, based on a hypothetical 10 percent increase or 20 percent decrease in the value of the investments.
Foreign currency exchange risk
We have international subsidiaries in a number of countries, including Belgium Brazil, Canada, England, and Hungary.Germany. These subsidiaries' assets, liabilities, and current revenues and expenses are denominated in their respective foreign currency. We do not hedge our foreign currency exchange rate risk. The effect of a hypothetical 10 percent change in foreign currency exchange rates applicable to our business would not have a material impact on our consolidated financial statements.
Item 8.Financial Statements and Supplementary Data
The information required by this Item 8 is contained on pages F-1 through F-60F-68 of this Annual Report and is incorporated herein by reference.
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
Management, with the participation of our chief executive officer, our executive chairman, and our chief financial officer, evaluated the effectiveness of our disclosure controls and procedures as of December 31, 2017.2019. The term "disclosure controls and procedures," as defined in Rules 13a-15(e) and 15d-15(e) under the Exchange Act means controls and other procedures of a company 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. Based on their evaluation of our disclosure controls and procedures as of December 31, 2017,2019, our chief executive officer, executive chairman, and chief financial officer have concluded that, as of such date, our disclosure controls and procedures were effective at the reasonable assurance level.
Management's Annual Report on Internal Control Over Financial Reporting
Our management is responsible for establishing and maintaining adequate internal control over financial reporting as such term is defined in RuleRules 13a-15(f) and Rule 15d-15(f) of the Exchange Act. Our internal control over financial reporting is a process designed 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. 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 consolidated financial statements in accordance with generally accepted accounting principles, 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 the consolidated financial statements.
Because of its inherent limitations, internal control over financial reporting may not prevent or detect misstatements. Also, projections of any evaluation of effectiveness to future periods are subject to the risk that controls may become inadequate because of changes in conditions or that the degree of compliance with the policies or procedures may deteriorate.
Our management assessed the effectiveness of our internal control over financial reporting as of December 31, 2017.2019. In making this assessment, our management used the criteria set forth by the Committee of Sponsoring Organizations of the Treadway Commission (COSO) in Internal Control - Integrated Framework (2013). Based on this evaluation, management concluded that our internal control over financial reporting was effective as of December 31, 2017.2019.
PricewaterhouseCoopersDeloitte & Touche LLP, an independent registered public accounting firm, has audited the effectiveness of our internal control over financial reporting as of December 31, 2017,2019, as stated in their report, which is included in Part II Item 8 of this Annual Report.
Changes in Internal Control Over Financial Reporting
There have been no changes in our internal control over financial reporting during the quarter ended December 31, 20172019 that have materially affected, or are reasonably likely to materially affect, our internal control over financial reporting.
Item 9B.Other Information
None.

PART III
Item 10.Directors, Executive Officers and Corporate Governance
The information required by this item is hereby incorporated by reference to our Definitive Proxy Statement relating to our 20182020 Annual Meeting of Shareholders to be filed with the SEC within 120 days of the fiscal year ended December 31, 2017.2019.
Our board of directors has adopted a Code of Business Conduct and Ethics applicable to all officers, directors, and employees, which is available on our website (investors.dna.cominvestors.precigen.com) under "Corporate Governance." We will provide a copy of this document, without charge, upon request, by writing to us at Intrexon Corporation,Precigen, Inc., 20374 Seneca Meadows Parkway, Germantown, Maryland 20876, Attention: Investor Relations. We intend to satisfy the disclosure requirement under Item 5.05 of Form 8-K regarding amendment to, or waiver from, a provision of our Code of Business Conduct and Ethics by posting such information on our website at the address and location specified above.
Item 11.Executive Compensation
The information required by this item is hereby incorporated by reference to our Definitive Proxy Statement relating to our 20182020 Annual Meeting of Shareholders to be filed with the SEC within 120 days of the fiscal year ended December 31, 2017.2019.
Item 12.Security Ownership of Certain Beneficial Owners and Management and Related Stockholder Matters
The information required by this item is hereby incorporated by reference to our Definitive Proxy Statement relating to our 20182020 Annual Meeting of Shareholders to be filed with the SEC within 120 days of the fiscal year ended December 31, 2017.2019.
Item 13.Certain Relationships and Related Transactions, and Director Independence
The information required by this item is hereby incorporated by reference to our Definitive Proxy Statement relating to our 20182020 Annual Meeting of Shareholders to be filed with the SEC within 120 days of the fiscal year ended December 31, 2017.2019.
Item 14.Principal Accounting Fees and Services
The information required by this item is hereby incorporated by reference to our Definitive Proxy Statement relating to our 20182020 Annual Meeting of Shareholders to be filed with the SEC within 120 days of the fiscal year ended December 31, 2017.2019.

PART IV
Item 15.Exhibits, Financial Statement Schedules
(a)The following consolidated financial statements of Intrexon CorporationPrecigen, Inc. and its subsidiaries, and the independent registered public accounting firm reports thereon, are included in Part II, Item 8 of this Annual Report:
1.
Financial Statements.
Consolidated Financial Statements of Intrexon CorporationPrecigen, Inc. and Subsidiaries
Reports of Independent Registered Public Accounting Firm as of and for the Year Ended December 31, 2019
Report of Independent Registered Public Accounting Firm as of and for the Two Years Ended December 31, 2018
Consolidated Balance Sheets as of December 31, 20172019 and 20162018
Consolidated Statements of Operations for the Years Ended December 31, 2017, 2016,2019, 2018, and 20152017
Consolidated Statements of Comprehensive Loss for the Years Ended December 31, 2017, 2016,2019, 2018, and 20152017
Consolidated Statements of Shareholders' and Total Equity for the Years Ended December 31, 2017, 20162019, 2018 and 20152017
Consolidated Statements of Cash Flows for the Years Ended December 31, 2017, 2016,2019, 2018, and 20152017
Notes to the Consolidated Financial Statements for the Years Ended December 31, 2017, 2016, and 2015
2.
Financial Statement Schedules.
Financial Statements of ZIOPHARM Oncology, Inc.
Report of Independent Registered Public Accounting Firm
Balance Sheets as of December 31, 2015 and 2014
Statements of Operations for the Years Ended December 31, 2015, 2014, and 2013
Statements of Changes in Stockholders' Equity for the Years Ended December 31, 2015, 2014, and 2013
Statements of Cash Flows for the Years Ended December 31, 2015, 2014, and 2013
Notes to Financial Statements for the Years Ended December 31, 2015, 2014, and 2013
All other financial statement schedules have been omitted because either the required information is not applicable or the information required is included in the consolidated financial statements and notes thereto included in this Annual Report.
3.
Exhibits.
The exhibits are listed in Item 15(b) below.
(b)Exhibits
The following exhibits are filed with this Annual Report or incorporated by reference:
Exhibit No. Description
  
1.1*

  
2.1*
3.1*
3.2*
4.1*
4.2*
4.3*
  

2.1*4.4*

 
2.2*
2.3*
  
3.1*4.5

 
3.1A*
3.2*
4.1*
4.2*
4.3*
  
10.1†*

  
  
10.2†*

  
  
10.2A†*

  
  
10.2B†*

 
  
10.2C†*

 
  
10.2D†*

  
  
10.2E†*

 
  
10.2F†*

 
  
10.2G†*

 
10.2H†*
10.2I†*
10.2H†*
10.2I†*
10.2J†*
  
10.2K†*10.2J†*

 
  
10.2L†*10.2K†*

 
  
10.3*

  
   
10.3A*10.4†*

  

10.3B*
  
10.3C*10.5†*

  
10.4#*
10.4A**
10.4B**
10.5#*
10.6#*
10.7*
10.8#*
10.9*
10.10#*
10.11†*
  
10.12#*10.6†*

 
  
10.13#*10.7#*

 
10.14#*
  
10.15#*10.8#*

 
  
10.16*10.9*

 
10.17*
  
10.18*10.10*

 
  
10.19*10.11*

 
  
10.20#*10.12#*

 
  
10.21#*10.13†*

 
  
10.22†*10.14*

 
10.23*
  

10.23A*10.15#*

 
  
10.23B*10.16#*

 
  
10.23C*10.17*

 
  
10.24*10.18*

 
  
10.25†*10.19*

 
10.26†*
10.27†*
  
21.1

 
  
23.1

 
  
23.2

 
  
31.1

 
  
31.2

 
31.3
  
32.1**

 
  
32.2**

 
32.3**
  
101**

 Interactive Data File (Intrexon Corporation(Precigen, Inc. and Subsidiaries Consolidated Financial Statements for the years ended December 31, 2016, 20152019, 2018 and 2014,2017, formatted in Inline XBRL (eXtensible Business Reporting Language)).
  
  Attached as Exhibit 101 are the following documents formatted in XBRL: (i) the Consolidated Balance Sheets as of December 31, 20172019 and 2016,2018, (ii) the Consolidated Statements of Operations for the years ended December 31, 2017, 20162019, 2018 and 2015,2017, (iii) the Consolidated Statements of Shareholders' and Total Equity for the years ended December 31, 2017, 20162019, 2018 and 2015,2017, (iv) the Consolidated Statements of Cash Flows for the years ended December 31, 2017, 20162019, 2018 and 20152017 and (v) the Notes to the Consolidated Financial Statements forStatements.
104**
Cover Page Interactive Data File (embedded within the years ended December 31, 2017, 2016 and 2015.Inline XBRL document)
*Previously filed and incorporated by reference to the exhibit indicated in the following filings by Intrexon:the Company:
(1)Registration Statement on Form S-1, filed with the Securities and Exchange Commission on July 9, 2013.
(2)Amendment No. 1 to Registration Statement on Form S-1, filed with the Securities and Exchange Commission on July 29, 2013.
(3)Current Report on Form 8-K, filed with the Securities and Exchange Commission on August 15, 2013.
(4)Current Report on Form 8-K/A, filed with the Securities and Exchange Commission on October 30, 2013.
(5)(2)Current Report on Form 8-K/A, filed with the Securities and Exchange Commission on April 4, 2014.
(6)Current Report on Form 8-K, filed with the Securities and Exchange Commission on August 11, 2014.
(7)(3)Current Report on Form 8-K, filed with the Securities and Exchange Commission on January 14, 2015.

(8)Current Report on Form 8-K/A, filed with the Securities and Exchange Commission on January 28, 2015.
(9)(4)Current Report on Form 8-K, filed with the Securities and Exchange Commission on June 13, 2014.
(10)Current Report on Form 8-K, filed with the Securities and Exchange Commission on April 2, 2015.
(11)(5)Current Report on Form 8-K, filed with the Securities and Exchange Commission on June 17, 2015.
(12)Current Report on Form 8-K, filed with the Securities and Exchange Commission on August 12, 2015.
(13)Current Report on Form 8-K/A, filed with the Securities and Exchange Commission on November 3, 2015.
(14)(6)Current Report on Form 8-K, filed with the Securities and Exchange Commission on November 12, 2015.
(15)Current Report on Form 8-K, filed with the Securities and Exchange Commission on March 14, 2016.
(16)(7)Current Report on Form 8-K, filed with the Securities and Exchange Commission on June 13, 2016.

(17)Current Report on Form 8-K, filed with the Securities and Exchange Commission on June 30, 2016.
(18)Current Report on Form 8-K, filed with the Securities and Exchange Commission on August 8, 2016.
(19)Quarterly Report on Form 10-Q, filed with the Securities and Exchange Commission on August 9, 2016.
(20)Current Report on Form 8-K, filed with the Securities and Exchange Commission on November 3, 2016.
(21)Current Report on Form 8-K, filed with the Securities and Exchange Commission on December 30, 2016.
(22)Current Report on Form 8-K, filed with the Securities and Exchange Commission on March 31, 2017.
(23)(8)Amendment No. 2 to the Registration Statement on Form S-4, filed with the Securities and Exchange Commission on May 11, 2017.
(24)(9)Current Report on Form 8-K, filed with the Securities and Exchange Commission on June 30, 2017.
(25)(10)Annual Report on Form 10-K, filed with the Securities and Exchange Commission on March 1, 2018.
(11)Current Report on Form 8-K, filed with the Securities and Exchange Commission on June 8, 2018.
(12)Current Report on Form 8-K, filed with the Securities and Exchange Commission on July 3, 2018.
(13)Quarterly Report on Form 10-Q, filed with the Securities and Exchange Commission on November 8, 2018.
(14)Annual Report on Form 10-K, filed with the Securities and Exchange Commission on March 1, 2019.
(15)Quarterly Report on Form 10-Q, filed with the Securities and Exchange Commission on May 9, 2019.
(16)Quarterly Report on Form 10-Q, filed with the Securities and Exchange Commission on August 9, 2019.
(17)Current Report on Form 8-K, filed with the Securities and Exchange Commission on October 16, 2017.31, 2019.
(26)Quarterly Report on Form 10-Q, filed with the Securities and Exchange Commission on November 9, 2017.
(27)(18)Current Report on Form 8-K, filed with the Securities and Exchange Commission on January 2, 2018.2020.
(19)Current Report on Form 8-K, filed with the Securities and Exchange Commission on January 7, 2020.
(20)Current Report on Form 8-K, filed with the Securities and Exchange Commission on February 4, 2020.
**Furnished herewith
Indicates management contract or compensatory plan.
#Portions of the exhibit (indicated by asterisks) have been omitted pursuant to a confidential treatment order grantedas permitted by the Securities and Exchange Commission.
(c)Financial Statement Schedules
The response to Item 15(a)2 is incorporated herein by reference.
Item 16.Form 10-K Summary
None.

SIGNATURES
Pursuant to the requirements of Section 13 or 15(d) of the Securities Exchange Act of 1934, as amended, the Registrant has duly caused this report to be signed on its behalf by the undersigned, thereunto duly authorized.
Dated: March 1, 20182, 2020
INTREXON CORPORATIONPRECIGEN, INC.
  
 By:/S/    RANDAL J. KIRK
  
Randal J. Kirk
Chief Executive Officer and Chairman of the Board of Directors
Pursuant to the requirements of the Securities Exchange Act of 1934, as amended, this report has been signed below by the following persons on behalf of the Registrant and in the capacities and on the dates indicated.
     
Signature  Title Date
   
/S/    RANDAL J. KIRK  
Chief Executive OfficerChairman and
Chairman of the Board of Directors
(Principal Executive Officer)
 3/1/20182/2020
Randal J. Kirk
/S/    HELEN SABZEVARI
Chief Executive Officer
(Principal Executive Officer)
3/2/2020
Helen Sabzevari   
   
/S/    RICK L. STERLING  
Chief Financial Officer
(Principal Accounting and Financial Officer)
 3/1/20182/2020
Rick L. Sterling   
   
/S/ CESAR L. ALVAREZ Director 3/1/20182/2020
Cesar L. Alvarez     
   
/S/    STEVEN FRANK  Director 3/1/20182/2020
Steven Frank    
   
/S/    VINITA D. GUPTA Director 3/1/20182/2020
Vinita D. Gupta    
   
/S/    FRED HASSAN Director 3/1/20182/2020
Fred Hassan    
   
/S/    JEFFREY B. KINDLER  Director 3/1/20182/2020
Jeffrey B. Kindler    
   
/S/    DEAN J. MITCHELL  Director 3/1/20182/2020
Dean J. Mitchell    
   
/S/    ROBERT B. SHAPIRO  Director 3/1/20182/2020
Robert B. Shapiro    
   
/S/    JAMES S. TURLEY  Director 3/1/20182/2020
James S. Turley    

Index to the Financial Statements and Schedules
 Page(s)

Intrexon CorporationPrecigen, Inc. and Subsidiaries
Consolidated Financial Statements
December 31, 2017, 20162019, 2018 and 20152017

Report of Independent Registered Public Accounting Firm

To the shareholders and the Board of Directors and Shareholders of Intrexon CorporationPrecigen, Inc.

OpinionsOpinion on the Financial Statements and Internal Control over Financial Reporting

We have audited the accompanying consolidated balance sheetssheet of Precigen, Inc. (formerly Intrexon CorporationCorporation) and its subsidiaries (the "Company") as of December 31, 2017 and 2016,and2019, the related consolidated statements of operations, of comprehensive loss, of shareholders' and total equity, and of cash flows, for each of the three years in the periodyear ended December 31, 2017, including2019, and the related notes (collectively referred to as the "consolidated financial"financial statements").We also have audited the Company's internal control over financial reporting as of December 31, 2017, based on criteria established in Internal Control - Integrated Framework (2013) issued by the Committee of Sponsoring Organizations of the Treadway Commission (COSO).

In our opinion, the consolidated financial statements referred to above present fairly, in all material respects, the financial position of the Company as of December 31, 2017 and 2016, 2019, and the results of theirits operations and theirits cash flows for each of the three years in the periodyear ended December 31, 20172019, in conformity with accounting principles generally accepted in the United States of America. Also
We have also audited, in our opinion,accordance with the standards of the Public Company maintained, in all material respects, effectiveAccounting Oversight Board (United States) (PCAOB), the Company's internal control over financial reporting as of December 31, 2017,2019, based on criteria established in Internal Control - Integrated Framework(2013)issued by the COSO.

Basis for Opinions

The Company's management is responsible for these consolidated financial statements, for maintaining effective internal control over financial reporting, and for its assessmentCommittee of Sponsoring Organizations of the effectiveness of internal control over financial reporting, included in Management's Annual Report on Internal Control Over Financial Reporting appearing under Item 9A. Our responsibility is to express opinions on the Company's consolidatedfinancial statementsTreadway Commission and our report dated March 2, 2020, expressed an unqualified opinion on the Company's internal control over financial reportingreporting.
Basis for Opinion
These financial statements are the responsibility of the Company's management. Our responsibility is to express an opinion on the Company's financial statements based on our audits.audit. We are a public accounting firm registered with the Public Company Accounting Oversight Board (United States) ("PCAOB")PCAOB and are required to be independent with respect to the Company in accordance with the U.S. federal securities laws and the applicable rules and regulations of the Securities and Exchange Commission and the PCAOB.

We conducted our auditsaudit in accordance with the standards of the PCAOB. Those standards require that we plan and perform the auditsaudit to obtain reasonable assurance about whether the consolidatedfinancial statements are free of material misstatement, whether due to error or fraud, and whether effective internal control over financial reporting was maintained in all material respects.

fraud. Our audits of the consolidatedfinancial statementsaudit included performing procedures to assess the risks of material misstatement of the consolidatedfinancial statements, whether due to error or fraud, and performing procedures that respond to those risks. Such procedures included examining, on a test basis, evidence regarding the amounts and disclosures in the consolidatedfinancial statements. Our auditsaudit also included evaluating the accounting principles used and significant estimates made by management, as well as evaluating the overall presentation of the consolidatedfinancial statements. We believe that our audit provides a reasonable basis for our opinion.
Critical Audit Matters
The critical audit matters communicated below are matters arising from the current-period audit of the financial statements that were communicated or required to be communicated to the audit committee and that (1) relate to accounts or disclosures that are material to the financial statements and (2) involved our especially challenging, subjective, or complex judgments. The communication of critical audit matters does not alter in any way our opinion on the financial statements, taken as a whole, and we are not, by communicating the critical audit matters below, providing separate opinions on the critical audit matters or on the accounts or disclosures to which they relate.
Revenue Recognition - Collaboration and Licensing Revenues - Refer to Notes 2 and 6 to the financial statements
Critical Audit Matter Description
The Company recognizes revenue when its customer obtains control of the promised goods or services, in an amount that reflects the consideration that the Company expects to receive in exchange for those goods or services. As the nature of the promises in the Company's collaboration and licensing agreements are highly integrated and interrelated, the Company typically combines most of its promises into a single performance obligation. Options to acquire additional services are considered to determine if they constitute material rights. The Company utilizes judgment to determine the most appropriate method to measure its progress of performance under the agreement, primarily based on inputs necessary to fulfill the performance obligation. The Company evaluates its measure of progress to recognize revenue each reporting period and, if necessary, adjusts the measure of performance and related revenue recognition. The Company's measure of performance and revenue recognition involves significant judgment and assumptions, including, but not limited to, estimated costs and timelines to complete its performance obligations. The Company evaluates modifications and amendments to its contracts to determine whether any changes should be accounted for prospectively or on a cumulative catch-up basis. For the year ended December 31, 2019, the Company's total revenue from continuing operations was $90.7 million, of which $14.1 million relates to collaboration and licensing revenues.


Given the judgments necessary to estimate total contract costs and revenue for the performance obligation used to recognize revenue for certain collaboration and licensing contracts, auditing such estimates required extensive audit effort due to the complexity of collaboration and licensing contracts and the high degree of auditor judgment applied when performing audit procedures and evaluating the results of those procedures.

How the Critical Audit Matter Was Addressed in the Audit

Our audit procedures related to management's estimates of total contract costs and revenue for the performance obligation used to recognize revenue for certain collaboration and licensing contracts included the following, among others:
We tested the operating effectiveness of controls over contract revenue, including those over the estimates of total contract costs and revenue for performance obligations.
We selected a sample of collaboration and licensing contracts and performed the following:
Evaluated whether the contracts were properly included in management's calculation of contract revenue based on the terms and conditions of each contract, including whether transfer of control to the customer occurred as progress was made toward fulfilling the performance obligation.
Compared the transaction price to the consideration expected to be received based on current rights and obligations under the contracts and any modifications that were agreed upon with the customers.
Tested management's identification of the distinct performance obligation(s) by evaluating whether the underlying technology license, services, or both were highly interdependent and interrelated.
Evaluated management's determination of the contractual term and the appropriateness of management's method to measure its progress over that term.
Tested the accuracy and completeness of the total contract costs incurred to date for the performance obligation.
Evaluated the estimates of total contract costs and revenue for the performance obligation by:
Comparing costs incurred to date to the costs management estimated to be incurred to date.
Evaluating management's ability to achieve the estimates of total contract costs by performing corroborating inquiries with the Company's project managers and financial analysts, and comparing the estimates to management's work plans and cost estimates.
We evaluated management's ability to estimate total contract costs accurately by comparing actual costs to management's historical estimates for performance obligations that have been fulfilled.
Tested the mathematical accuracy of management's calculation of revenue for the performance obligation.

Goodwill - Trans Ova Reporting Unit - Refer to Notes 2 and 11 to the financial statements
Critical Audit Matter Description
The Company's goodwill balance was $63.8 million as of December 31, 2019. The Company's evaluation of goodwill for impairment involves the comparison of the fair value of the reporting unit to its carrying amount. The forecast used in the Company's estimation of fair value was developed by management based on historical operating results, incorporating adjustments to reflect management's planned changes in operations and market considerations. The discount rate utilizes a risk adjusted weighted average cost of capital. During the Company's annual goodwill impairment test, the Company determined it was more-likely-than-not that the fair value of the Trans Ova reporting unit was less than the carrying amount. As a result, the Company compared the carrying amount of the Trans Ova reporting unit to the fair value as of the measurement date and determined the carrying amount exceeded the fair value, resulting in a $29.6 million goodwill impairment charge.

Given the significant estimates and assumptions management makes to estimate the fair value of the Trans Ova reporting unit and the sensitivity of Trans Ova's operations to changes in these estimates, performing audit procedures to evaluate the

reasonableness of management's estimates and assumptions required a high degree of auditor judgment and an increased extent of effort, including the need to involve our fair value specialists.
How the Critical Audit Matter Was Addressed in the Audit
Our audit procedures related to the forecasts of future revenues, operating margins, and cash flow ("forecasts"), and the selection of the discount rate for the Trans Ova reporting unit included the following, among others:
We tested the operating effectiveness of controls over management's goodwill impairment evaluation, including those over the determination of the Trans Ova reporting unit fair value, such as controls related to management's forecasts and selection of the discount rate.
We evaluated management's ability to accurately forecast revenues and operating margins by comparing actual results to management's historical forecasts and external information.
With the assistance of our fair value specialists, we evaluated the discount rate, including testing the underlying source information and the mathematical accuracy of the calculations, and developing a range of independent estimates and comparing those to the discount rate selected by management.

/s/ Deloitte & Touche LLP
Baltimore, Maryland
March 2, 2020

We have served as the Company's auditor since 2019.


Report of Independent Registered Public Accounting Firm

To the shareholders and the Board of Directors of Precigen, Inc.
Opinion on Internal Control over Financial Reporting
We have audited the internal control over financial reporting of Precigen, Inc. (formerly Intrexon Corporation) and subsidiaries (the "Company") as of December 31, 2019, based on criteria established in Internal Control - Integrated Framework (2013) issued by the Committee of Sponsoring Organizations of the Treadway Commission (COSO). In our opinion, the Company maintained, in all material respects, effective internal control over financial reporting as of December 31, 2019, based on criteria established in Internal Control - Integrated Framework (2013) issued by COSO.
We have also audited, in accordance with the standards of the Public Company Accounting Oversight Board (United States) (PCAOB), the consolidated financial statements as of and for the year ended December 31, 2019, of the Company and our report dated March 2, 2020, expressed an unqualified opinion on those financial statements.
Basis for Opinion
The Company's management is responsible for maintaining effective internal control over financial reporting and for its assessment of the effectiveness of internal control over financial reporting, included in the accompanying Management's Annual Report on Internal Control Over Financial Reporting. Our responsibility is to express an opinion on the Company's internal control over financial reporting based on our audit. We are a public accounting firm registered with the PCAOB and are required to be independent with respect to the Company in accordance with the U.S. federal securities laws and the applicable rules and regulations of the Securities and Exchange Commission and the PCAOB.
We conducted our audit in accordance with the standards of the PCAOB. Those standards require that we plan and perform the audit to obtain reasonable assurance about whether effective internal control over financial reporting was maintained in all material respects. Our audit included obtaining an understanding of internal control over financial reporting, assessing the risk that a material weakness exists, and testing and evaluating the design and operating effectiveness of internal control based on the assessed risk. Our audits also includedrisk, and performing such other procedures as we considered necessary in the circumstances. We believe that our audits provideaudit provides a reasonable basis for our opinions.

opinion.
Definition and Limitations of Internal Control over Financial Reporting

A company's internal control over financial reporting is a process designed 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. A company's internal control over financial reporting includes those policies and procedures that (i)(1) pertain to the maintenance of records that, in reasonable detail, accurately and fairly reflect the transactions and dispositions of the assets of the company; (ii)(2) provide reasonable assurance that transactions are recorded as necessary to permit preparation of financial statements in accordance with generally accepted accounting principles, and that receipts and expenditures of the company are being made only in accordance with authorizations of management and directors of the company; and (iii)(3) provide reasonable assurance regarding prevention or timely detection of unauthorized acquisition, use, or disposition of the company's assets that could have a material effect on the financial statements.


Because of its inherent limitations, internal control over financial reporting may not prevent or detect misstatements. Also, projections of any evaluation of effectiveness to future periods are subject to the risk that controls may become inadequate because of changes in conditions, or that the degree of compliance with the policies or procedures may deteriorate.

/s/ Deloitte & Touche LLP
Baltimore, Maryland
March 2, 2020


Report of Independent Registered Public Accounting Firm

To the Board of Directors and Shareholders of Precigen, Inc.

Opinion on the Financial Statements

We have audited the consolidated balance sheet of Precigen, Inc. (formerly known as Intrexon Corporation) and its subsidiaries (the "Company") as of December 31, 2018, and the related consolidated statements of operations, comprehensive loss, changes in shareholders' and total equity and cash flows for each of the two years in the period ended December 31, 2018, including the related notes (collectively referred to as the "consolidated financial statements"). In our opinion, the consolidated financial statements present fairly, in all material respects, the financial position of the Company as of December 31, 2018, and the results of its operations and its cash flows for each of the two years in the period ended December 31, 2018, in conformity with accounting principles generally accepted in the United States of America.

Substantial Doubt About the Company's Ability to Continue as a Going Concern

The accompanying consolidated financial statements have been prepared assuming that the Company will continue as a going concern. As discussed in Note 1 to the consolidated financial statements, the Company has suffered recurring losses, cash outflows from operations and has an accumulated deficit that raise substantial doubt about its ability to continue as a going concern. Management's plans in regard to these matters are also described in Note 1. The consolidated financial statements do not include any adjustments that might result from the outcome of this uncertainty.

Change in Accounting Principle
As discussed in Note 2 to the consolidated financial statements, the Company changed the manner in which it accounts for revenues from contracts with customers in 2018.

Basis for Opinion

These consolidated financial statements are the responsibility of the Company's management. Our responsibility is to express an opinion on the Company's consolidated financial statements based on our audits. We are a public accounting firm registered with the Public Company Accounting Oversight Board (United States) (PCAOB) and are required to be independent with respect to the Company in accordance with the U.S. federal securities laws and the applicable rules and regulations of the Securities and Exchange Commission and the PCAOB.

We conducted our audits of these consolidated financial statements in accordance with the standards of the PCAOB. 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, whether due to error or fraud.

Our audits included performing procedures to assess the risks of material misstatement of the consolidated financial statements, whether due to error or fraud, and performing procedures that respond to those risks. Such procedures included examining, on a test basis, evidence regarding the amounts and disclosures in the consolidated financial statements. Our audits also included evaluating the accounting principles used and significant estimates made by management, as well as evaluating the overall presentation of the consolidated financial statements. We believe that our audits provide a reasonable basis for our opinion.



/s/ PricewaterhouseCoopers LLP


Raleigh, North Carolina
March 1, 20182019, except for the effects of discontinued operations discussed in Note 3 and the change in composition of reportable segments discussed in Note 20, as to which the date is March 2, 2020.



We have served as the Company's auditor since 2006.from 2006 to 2019.


Intrexon CorporationPrecigen, Inc. and Subsidiaries
Consolidated Balance Sheets
December 31, 20172019 and 20162018
(Amounts in thousands, except share data)2017 20162019 2018
Assets      
Current assets      
Cash and cash equivalents$68,111
 $62,607
$65,793
 $96,876
Restricted cash6,987
 6,987

 6,987
Short-term investments6,273
 174,602
9,260
 119,614
Equity securities5,285
 

 384
Receivables      
Trade, net19,775
 21,637
20,650
 21,179
Related parties, net17,913
 16,793
600
 4,129
Notes, net
 1,500
Other2,153
 2,555
4,978
 1,257
Inventory20,493
 21,139
16,097
 20,575
Prepaid expenses and other7,057
 7,361
6,444
 5,327
Current assets held for sale110,821
 9,155
Total current assets154,047
 315,181
234,643
 285,483
Long-term investments
 5,993
Equity securities, noncurrent9,815
 23,522

 640
Investments in preferred stock161,225
 129,545
Property, plant and equipment, net112,674
 64,672
60,969
 86,896
Intangible assets, net232,877
 225,615
68,346
 88,962
Goodwill153,289
 157,175
63,754
 93,627
Investments in affiliates18,870
 23,655
1,461
 2,139
Right-of-use assets25,228
 
Other assets4,054
 3,710
1,362
 2,069
Noncurrent assets held for sale
 156,361
Total assets$846,851
 $949,068
$455,763
 $716,177
The accompanying notes are an integral part of these consolidated financial statements.

Intrexon CorporationPrecigen, Inc. and Subsidiaries
Consolidated Balance Sheets
December 31, 20172019 and 20162018
(Amounts in thousands, except share data)2017 20162019 2018
Liabilities and Total Equity      
Current liabilities      
Accounts payable$8,701
 $8,478
$5,917
 $11,973
Accrued compensation and benefits6,474
 6,540
14,091
 9,955
Other accrued liabilities21,080
 15,776
12,049
 19,005
Deferred revenue42,870
 53,364
Deferred revenue, including $877 and $6,502 from related parties as of December 31, 2019 and 2018, respectively5,697
 11,088
Lines of credit233
 820
1,922
 466
Current portion of long term debt502
 386
Deferred consideration
 8,801
Current portion of long-term debt, including $31,211 and $0 to related parties as of December 31, 2019 and 2018, respectively31,670
 479
Current portion of lease liabilities4,182
 
Related party payables313
 440
51
 256
Current liabilities held for sale47,333
 8,340
Total current liabilities80,173
 94,605
122,912
 61,562
Long term debt, net of current portion7,535
 7,562
Deferred revenue, net of current portion193,527
 256,778
Deferred tax liabilities, net15,620
 17,007
Other long term liabilities3,451
 3,868
Long-term debt, net of current portion, including $25,000 and $55,290 to related parties as of December 31, 2019 and 2018, respectively186,321
 211,216
Deferred revenue, net of current portion, including $30,182 and $44,772 from related parties as of December 31, 2019 and 2018, respectively48,136
 46,728
Lease liabilities, net of current portion23,849
 
Deferred tax liabilities2,834
 3,856
Other long-term liabilities
 3,135
Long-term liabilities held for sale
 10,958
Total liabilities300,306
 379,820
384,052
 337,455
Commitments and contingencies (Note 17)
 

 

Total equity      
Common stock, no par value, 200,000,000 shares authorized as of December 31, 2017 and 2016; and 122,087,040 shares and 118,688,770 shares issued and outstanding as of December 31, 2017 and 2016, respectively
 
Common stock, no par value, 400,000,000 shares and 200,000,000 shares authorized as of December 31, 2019 and 2018, respectively; and 163,274,880 shares and 160,020,466 shares issued and outstanding as of December 31, 2019 and 2018, respectively
 
Additional paid-in capital1,397,005
 1,325,780
1,752,048
 1,722,012
Accumulated deficit(847,820) (729,341)(1,652,869) (1,330,545)
Accumulated other comprehensive loss(15,554) (36,202)(27,468) (28,612)
Total Intrexon shareholders' equity533,631
 560,237
Total Precigen shareholders' equity71,711
 362,855
Noncontrolling interests12,914
 9,011

 15,867
Total equity546,545
 569,248
71,711
 378,722
Total liabilities and total equity$846,851
 $949,068
$455,763
 $716,177
The accompanying notes are an integral part of these consolidated financial statements.


Precigen, Inc. and Subsidiaries
Consolidated Statements of Operations
Years Ended December 31, 2019, 2018 and 2017
(Amounts in thousands, except share and per share data)2019 2018 2017
Revenues     
Collaboration and licensing revenues, including $11,832, $55,573, and $122,485 from related parties in 2019, 2018, and 2017, respectively$14,059
 $69,540
 $134,624
Product revenues23,780
 28,486
 33,585
Service revenues51,803
 52,419
 50,611
Other revenues1,080
 733
 643
Total revenues90,722
 151,178
 219,463
Operating Expenses     
Cost of products31,930
 35,087
 33,236
Cost of services29,471
 27,589
 28,456
Research and development101,879
 366,248
 109,176
Selling, general and administrative100,844
 125,751
 130,682
Impairment loss30,810
 
 13,823
Total operating expenses294,934
 554,675
 315,373
Operating loss(204,212) (403,497) (95,910)
Other Income (Expense), Net     
Unrealized and realized appreciation (depreciation) in fair value of equity securities and preferred stock, net8,291
 (28,273) 10,130
Interest expense(17,666) (8,473) (584)
Interest and dividend income3,871
 19,017
 19,431
Other income, net3,445
 470
 1,002
Total other income (expense), net(2,059) (17,259) 29,979
Equity in net loss of affiliates(2,416) (8,986) (12,436)
Loss from continuing operations before income taxes(208,687) (429,742) (78,367)
Income tax benefit (expense)930
 15,425
 (2,072)
Loss from continuing operations(207,757) (414,317) (80,439)
Loss from discontinued operations, net of income tax benefit(116,159) (100,389) (46,381)
Net loss$(323,916) $(514,706) $(126,820)
Net loss attributable to the noncontrolling interests1,592
 5,370
 9,802
Net loss attributable to Precigen$(322,324) $(509,336) $(117,018)
Amounts Attributable to Precigen     
Net loss from continuing operations attributable to Precigen$(206,165) $(408,947) $(70,637)
Net loss from discontinued operations attributable to Precigen(116,159) (100,389) (46,381)
Net loss attributable to Precigen$(322,324) $(509,336) $(117,018)
Net Loss per Share     
Net loss from continuing operations attributable to Precigen per share, basic and diluted$(1.34) $(3.16) $(0.59)
Net loss from discontinued operations attributable to Precigen per share, basic and diluted(0.75) (0.77) (0.39)
Net loss attributable to Precigen per share, basic and diluted$(2.09) $(3.93) $(0.98)
Weighted average shares outstanding, basic and diluted154,138,774
 129,521,731
 119,998,826
The accompanying notes are an integral part of these consolidated financial statements.


Intrexon CorporationPrecigen, Inc. and Subsidiaries
Consolidated Statements of OperationsComprehensive Loss
Years Ended December 31, 2017, 20162019, 2018 and 20152017
(Amounts in thousands, except share and per share data)2017 2016 2015
Revenues     
Collaboration and licensing revenues, including $130,670, $93,792, and $77,354 from related parties in 2017, 2016, and 2015, respectively$145,579
 $109,871
 $87,821
Product revenues33,589
 36,958
 41,879
Service revenues50,611
 43,049
 42,923
Other revenues1,202
 1,048
 982
Total revenues230,981
 190,926
 173,605
Operating Expenses     
Cost of products33,263
 37,709
 40,746
Cost of services29,525
 23,930
 23,183
Research and development143,207
 112,135
 147,483
Selling, general and administrative146,103
 142,318
 109,057
Impairment loss16,773
 
 
Total operating expenses368,871
 316,092
 320,469
Operating loss(137,890) (125,166) (146,864)
Other Income (Expense), Net     
Unrealized and realized appreciation (depreciation) in fair value of equity securities and preferred stock2,586
 (58,894) 66,876
Interest expense(611) (861) (1,244)
Interest and dividend income19,485
 10,190
 1,884
Other income, net1,013
 1,700
 1,314
Total other income (expense), net22,473
 (47,865) 68,830
Equity in net loss of affiliates(14,283) (21,120) (8,944)
Loss before income taxes(129,700) (194,151) (86,978)
Income tax benefit (expense)2,880
 3,877
 (1,016)
Net loss$(126,820) $(190,274) $(87,994)
Net loss attributable to the noncontrolling interests9,802
 3,662
 3,501
Net loss attributable to Intrexon$(117,018) $(186,612) $(84,493)
Net loss attributable to Intrexon per share, basic and diluted$(0.98) $(1.58) $(0.76)
Weighted average shares outstanding, basic and diluted119,998,826
 117,983,836
 111,066,352
(Amounts in thousands)2019 2018 2017
Net loss$(323,916) $(514,706) $(126,820)
Other comprehensive income (loss):     
Unrealized gain (loss) on investments68
 (59) 87
Gain (loss) on foreign currency translation adjustments1,087
 (13,073) 20,599
Comprehensive loss(322,761) (527,838) (106,134)
Comprehensive loss attributable to the noncontrolling interests1,581
 5,548
 9,764
Comprehensive loss attributable to Precigen$(321,180) $(522,290) $(96,370)
The accompanying notes are an integral part of these consolidated financial statements.

Intrexon CorporationPrecigen, Inc. and Subsidiaries
Consolidated Statements of Comprehensive LossShareholders' and Total Equity
Years Ended December 31, 2017, 20162019, 2018 and 20152017
(Amounts in thousands)2017 2016 2015
Net loss$(126,820) $(190,274) $(87,994)
Other comprehensive income (loss):     
Unrealized gain (loss) on investments87
 430
 (561)
Gain (loss) on foreign currency translation adjustments20,599
 (23,901) (12,108)
Comprehensive loss(106,134) (213,745) (100,663)
Comprehensive loss attributable to the noncontrolling interests9,764
 3,683
 3,422
Comprehensive loss attributable to Intrexon$(96,370) $(210,062) $(97,241)
(Amounts in thousands, except share data)
 
Common Stock
 
Additional
Paid-in
Capital
 
Accumulated
Other
Comprehensive
Loss
 
Accumulated
Deficit
 Total
Precigen
Shareholders'
Equity
 
Noncontrolling
Interests
 
Total
Equity
Shares Amount 
Balances at December 31, 2016118,688,770
 $
 $1,325,780
 $(36,202) $(729,341) $560,237
 $9,011
 $569,248
Cumulative effect of adoption of ASU 2016-09
 
 1,461
 
 (1,461) 
 
 
Stock-based compensation expense
 
 41,525
 
 
 41,525
 51
 41,576
Exercises of stock options and warrants149,429
 
 952
 
 
 952
 28
 980
Shares issued as payment for services654,456
 
 11,118
 
 
 11,118
 
 11,118
Shares issued in private placement1,207,980
 
 13,686
 
 
 13,686
 
 13,686
Shares and warrants issued in business combination684,240
 
 16,997
 
 
 16,997
 
 16,997
Acquisitions of noncontrolling interests221,743
 
 5,082
 
 
 5,082
 (5,995) (913)
Shares issued as payment of deferred consideration480,422
 
 
 
 
 
 
 
Adjustments for noncontrolling interests
 
 2,789
 
 
 2,789
 (2,802) (13)
Noncash dividend
 
 (22,385) 
 
 (22,385) 22,385
 
Net loss
 
 
 
 (117,018) (117,018) (9,802) (126,820)
Other comprehensive income
 
 
 20,648
 
 20,648
 38
 20,686
Balances at December 31, 2017122,087,040
 $
 $1,397,005
 $(15,554) $(847,820) $533,631
 $12,914
 $546,545
The accompanying notes are an integral part of these consolidated financial statements.

Intrexon CorporationPrecigen, Inc. and Subsidiaries
Consolidated Statements of Shareholders' and Total Equity
Years Ended December 31, 2017, 20162019, 2018 and 20152017
(Amounts in thousands, except share data)
 
Common Stock
 
Additional
Paid-in
Capital
 
Accumulated
Other
Comprehensive
Loss
 
Accumulated
Deficit
 Total
Intrexon
Shareholders'
Equity
 
Noncontrolling
Interests
 
Total
Equity
Shares Amount 
Balances at December 31, 2014100,557,932
 $
 $843,001
 $(4) $(458,236) $384,761
 $24,528
 $409,289
Stock-based compensation expense
 
 38,507
 
 
 38,507
 181
 38,688
Exercises of stock options and warrants1,148,463
 
 14,462
 
 
 14,462
 
 14,462
Shares issued as payment for services70,925
 
 2,169
 
 
 2,169
 
 2,169
Shares issued in public offerings, net of issuance costs9,922,256
 
 328,234
 
 
 328,234
 
 328,234
Shares issued as consideration for license agreement2,100,085
 
 59,579
 
 
 59,579
 
 59,579
Shares issued in business combinations2,552,151
 
 126,863
 
 
 126,863
 
 126,863
Acquisition of noncontrolling interest307,074
 
 9,412
 
 
 9,412
 (10,978) (1,566)
Adjustments for noncontrolling interests
 
 (249) 
 
 (249) 499
 250
Noncash dividend
 
 (172,419) 
 
 (172,419) 
 (172,419)
Net loss
 
 
 
 (84,493) (84,493) (3,501) (87,994)
Other comprehensive income (loss)
 
 
 (12,748) 
 (12,748) 79
 (12,669)
Balances at December 31, 2015116,658,886
 
 1,249,559
 (12,752) (542,729) 694,078
 10,808
 704,886
Stock-based compensation expense
 
 42,108
 
 
 42,108
 73
 42,181
Exercises of stock options and warrants1,400,146
 
 19,165
 
 
 19,165
 
 19,165
Shares issued as payment for services434,061
 
 10,777
 
 
 10,777
 
 10,777
Shares issued in asset acquisition136,340
 
 4,401
 
 
 4,401
 
 4,401
Shares issued as payment for contingent consideration59,337
 
 1,583
 
 
 1,583
 
 1,583
Acquisition of noncontrolling interest
 
 (1,813) 
 
 (1,813) 1,813
 
Net loss
 
 
 
 (186,612) (186,612) (3,662) (190,274)
Other comprehensive loss
 
 
 (23,450) 
 (23,450) (21) (23,471)
Balances at December 31, 2016118,688,770
 $
 $1,325,780
 $(36,202) $(729,341) $560,237
 $9,011
 $569,248
(Amounts in thousands, except share data)
 
Common Stock
 
Additional
Paid-in
Capital
 
Accumulated
Other
Comprehensive
Loss
 
Accumulated
Deficit
 Total
Precigen
Shareholders'
Equity
 
Noncontrolling
Interests
 
Total
Equity
Shares Amount 
Balances at December 31, 2017122,087,040
 $
 $1,397,005
 $(15,554) $(847,820) $533,631
 $12,914
 $546,545
Cumulative effect of adoption of ASC 606
 
 
 (104) 26,611
 26,507
 
 26,507
Stock-based compensation expense
 
 36,174
 
 
 36,174
 122
 36,296
Shares issued upon vesting of restricted stock units and for exercises of stock options and warrants70,159
 
 297
 
 
 297
 2,039
 2,336
Shares issued as payment for services909,980
 
 10,695
 
 
 10,695
 
 10,695
Shares and warrants issued in public offerings, net of issuance costs6,900,000
 
 82,374
 
 
 82,374
 5,616
 87,990
Equity component of convertible debt, net of issuance costs and deferred taxes
 
 36,868
 
 
 36,868
 
 36,868
Shares issued pursuant to share lending agreement7,479,431
 
 
 
 
 
 
 
Shares issued for reacquired in-process research and development22,573,856
 
 159,323
 
 
 159,323
 
 159,323
Adjustments for noncontrolling interests
 
 (724) 
 
 (724) 724
 
Net loss
 
 
 
 (509,336) (509,336) (5,370) (514,706)
Other comprehensive loss
 
 
 (12,954) 
 (12,954) (178) (13,132)
Balances at December 31, 2018160,020,466
 $
 $1,722,012
 $(28,612) $(1,330,545) $362,855
 $15,867
 $378,722
The accompanying notes are an integral part of these consolidated financial statements.

Intrexon CorporationPrecigen, Inc. and Subsidiaries
Consolidated Statements of Shareholders' and Total Equity
Years Ended December 31, 2017, 20162019, 2018 and 20152017
(Amounts in thousands, except share data)
 
Common Stock
 
Additional
Paid-in
Capital
 
Accumulated
Other
Comprehensive
Loss
 
Accumulated
Deficit
 Total
Intrexon
Shareholders'
Equity
 
Noncontrolling
Interests
 
Total
Equity
Shares Amount 
Balances at December 31, 2016118,688,770
 $
 $1,325,780
 $(36,202) $(729,341) $560,237
 $9,011
 $569,248
Cumulative effect of adoption of ASU 2016-09
 
 1,461
 
 (1,461) 
 
 
Stock-based compensation expense
 
 41,525
 
 
 41,525
 51
 41,576
Exercises of stock options and warrants149,429
 
 952
 
 
 952
 28
 980
Shares issued as payment for services654,456
 
 11,118
 
 
 11,118
 
 11,118
Shares issued in private placement1,207,980
 
 13,686
 
 
 13,686
 
 13,686
Shares and warrants issued in business combination684,240
 
 16,997
 
 
 16,997
 
 16,997
Acquisitions of noncontrolling interests221,743
 
 5,082
 
 
 5,082
 (5,995) (913)
Shares issued as payment of deferred consideration480,422
 
 
 
 
 
 
 
Adjustments for noncontrolling interests
 
 2,789
 
 
 2,789
 (2,802) (13)
Noncash dividend
 
 (22,385) 
 
 (22,385) 22,385
 
Net loss
 
 
 
 (117,018) (117,018) (9,802) (126,820)
Other comprehensive income
 
 
 20,648
 
 20,648
 38
 20,686
Balances at December 31, 2017122,087,040
 $
 $1,397,005
 $(15,554) $(847,820) $533,631
 $12,914
 $546,545
(Amounts in thousands, except share data)
 
Common Stock
 
Additional
Paid-in
Capital
 
Accumulated
Other
Comprehensive
Loss
 
Accumulated
Deficit
 Total
Precigen
Shareholders'
Equity
 
Noncontrolling
Interests
 
Total
Equity
Shares Amount 
Balances at December 31, 2018160,020,466
 $
 $1,722,012
 $(28,612) $(1,330,545) $362,855
 $15,867
 $378,722
Stock-based compensation expense
 
 18,881
 
 
 18,881
 69
 18,950
Shares issued upon vesting of restricted stock units and for exercises of stock options and warrants1,028,144
 
 63
 
 
 63
 250
 313
Shares issued for accrued compensation150,908
 
 1,102
 
 
 1,102
 
 1,102
Shares issued as payment for services2,075,362
 
 10,446
 
 
 10,446
 
 10,446
Shares and warrants issued in public offerings, net of issuance costs
 
 
 
 
 
 6,611
 6,611
Adjustments for noncontrolling interests
 
 (456) 
 
 (456) 456
 
Deconsolidation of subsidiary
 
 
 
 
 
 (21,672) (21,672)
Net loss
 
 
 
 (322,324) (322,324) (1,592) (323,916)
Other comprehensive income
 
 
 1,144
 
 1,144
 11
 1,155
Balances at December 31, 2019163,274,880
 $
 $1,752,048
 $(27,468) $(1,652,869) $71,711
 $
 $71,711
The accompanying notes are an integral part of these consolidated financial statements.

Intrexon CorporationPrecigen, Inc. and Subsidiaries
Consolidated Statements of Cash Flows
Years Ended December 31, 2017, 20162019, 2018 and 20152017
(Amounts in thousands)2017 2016 20152019 2018 2017
Cash flows from operating activities          
Net loss$(126,820) $(190,274) $(87,994)$(323,916) $(514,706) $(126,820)
Adjustments to reconcile net loss to net cash provided by (used in) operating activities:     
Adjustments to reconcile net loss to net cash used in operating activities:     
Depreciation and amortization31,145
 24,572
 17,743
24,896
 33,112
 31,145
Loss on disposal of long-lived assets3,124
 666
 633
Loss on abandonment and disposals of assets, net3,071
 20,928
 3,124
Impairment loss16,773
 
 
120,489
 60,504
 16,773
Unrealized and realized (appreciation) depreciation on equity securities and preferred stock(2,586) 58,894
 (66,876)
Reacquisition of in-process research and development
 236,748
 
Unrealized and realized (appreciation) depreciation on equity securities and preferred stock, net(7,833) 30,200
 (2,586)
Noncash dividend income(16,756) (7,421) 
(48) (14,841) (16,756)
Amortization of premiums on investments411
 1,070
 642
Amortization of premiums (discounts) on investments, net(1,005) (771) 411
Equity in net loss of affiliates14,283
 21,120
 8,944
6,730
 11,608
 14,283
Stock-based compensation expense41,576
 42,202
 38,667
18,950
 36,296
 41,576
Shares issued as payment for services11,118
 10,777
 2,169
10,446
 10,695
 11,118
Shares issued as consideration for license agreement
 
 59,579
Provision for bad debts1,217
 1,963
 1,757
3,242
 1,779
 1,217
Accretion of debt discount and amortization of deferred financing costs9,459
 4,378
 
Deferred income taxes(2,528) (3,467) 1,117
(3,674) (21,278) (2,528)
Other noncash items(517) 1,662
 460
837
 1,093
 (517)
Changes in operating assets and liabilities:          
Restricted cash
 (6,987) 
Receivables:          
Trade740
 2,588
 (12,138)(262) (2,698) 740
Related parties631
 6,804
 (11,042)967
 11,003
 631
Notes
 (42) 
Other661
 271
 5,286
(656) (542) 661
Inventory663
 3,807
 (774)4,100
 (478) 663
Prepaid expenses and other492
 (932) (2,729)(2,262) 1,006
 492
Other assets(1,436) 2,189
 (2,119)333
 652
 (1,017)
Accounts payable(3,402) 3,618
 (3,263)(5,349) 4,680
 (3,402)
Accrued compensation and benefits(1,466) (12,402) 10,491
5,186
 4,385
 (1,466)
Other accrued liabilities3,007
 9,002
 1,593
(5,516) 356
 3,007
Deferred revenue(75,337) (25,481) 74,434
7,423
 (38,578) (75,337)
Deferred consideration(313) (630) (943)
 
 (313)
Lease liabilities(995) 
 
Related party payables(147) 310
 (64)45
 (52) (147)
Other long term liabilities1,328
 146
 96
Net cash provided by (used in) operating activities(104,139) (55,975) 35,669
Other long-term liabilities(585) 281
 1,328
Net cash used in operating activities(135,927) (124,240) (103,720)
The accompanying notes are an integral part of these consolidated financial statements.


Precigen, Inc. and Subsidiaries
Consolidated Statements of Cash Flows
Years Ended December 31, 2019, 2018 and 2017
(Amounts in thousands)2019 2018 2017
Cash flows from investing activities     
Purchases of investments(55,073) (178,681) 
Sales and maturities of investments166,495
 65,975
 174,542
Purchases of preferred stock and warrants
 
 (1,161)
Proceeds from sales of equity securities23,456
 217
 235
Acquisitions of businesses, net of cash received
 (920) 2,054
Investments in affiliates(3,713) (16,582) (11,189)
Decrease in cash from deconsolidation of subsidiary(7,244) 
 
Return of investment in affiliate125
 2,598
 
Cash received (paid) in asset acquisitions
 15,500
 (14,219)
Purchases of property, plant and equipment(37,883) (41,587) (46,666)
Proceeds from sale of assets688
 2,267
 1,636
Issuances of notes receivable
 
 (2,400)
Proceeds from repayment of notes receivable
 
 1,500
Net cash provided by (used in) investing activities86,851
 (151,213) 104,332
Cash flows from financing activities     
Proceeds from issuance of shares in a private placement
 
 13,686
Proceeds from issuance of shares and warrants in public offerings, net of issuance costs6,611
 87,990
 
Acquisitions of noncontrolling interests
 
 (913)
Advances from lines of credit11,757
 4,561
 5,906
Repayments of advances from lines of credit(10,301) (4,328) (6,493)
Proceeds from long-term debt, net of issuance costs376
 219,859
 325
Payments of long-term debt(618) (623) (519)
Payments of deferred consideration for acquisitions
 
 (8,678)
Proceeds from stock option and warrant exercises313
 2,336
 980
Payment of stock issuance costs
 
 (10)
Net cash provided by financing activities8,138
 309,795
 4,284
Effect of exchange rate changes on cash, cash equivalents, and restricted cash(810) 295
 1,055
Net increase (decrease) in cash, cash equivalents, and restricted cash(41,748) 34,637
 5,951
Cash, cash equivalents, and restricted cash     
Beginning of year110,182
 75,545
 69,594
End of year$68,434
 $110,182
 $75,545
The accompanying notes are an integral part of these consolidated financial statements.


Intrexon CorporationPrecigen, Inc. and Subsidiaries
Consolidated Statements of Cash Flows
Years Ended December 31, 2017, 20162019, 2018 and 20152017
(Amounts in thousands)2017 2016 2015
Cash flows from investing activities     
Purchases of investments
 (75,246) (181,572)
Maturities of investments174,542
 101,987
 88,000
Purchases of equity securities, preferred stock, and warrants(1,161) (2,308) (17,080)
Proceeds from sales of equity securities235
 280
 
Acquisitions of businesses, net of cash received2,054
 
 (123,928)
Investments in affiliates(11,189) (11,542) (13,442)
Cash paid in asset acquisition(14,219) (7,244) 
Purchases of property, plant and equipment(46,666) (31,629) (12,749)
Proceeds from sale of property, plant and equipment1,636
 274
 626
Issuances of notes receivable(2,400) (2,964) (600)
Proceeds from repayment of notes receivable1,500
 
 1,500
Net cash provided by (used in) investing activities104,332
 (28,392) (259,245)
Cash flows from financing activities     
Proceeds from issuance of shares in a private placement13,686
 
 
Proceeds from issuance of shares in public offerings, net of issuance costs
 
 328,234
Acquisitions of noncontrolling interests(913) 
 (1,566)
Advances from lines of credit5,906
 5,075
 15,232
Repayments of advances from lines of credit(6,493) (4,816) (16,944)
Proceeds from long term debt325
 547
 81
Payments of long term debt(519) (1,201) (1,564)
Payments of deferred consideration for acquisitions(8,678) (6,705) (6,252)
Proceeds from stock option exercises980
 19,165
 14,462
Payment of stock issuance costs(10) 
 
Net cash provided by financing activities4,284
 12,065
 331,683
Effect of exchange rate changes on cash and cash equivalents1,027
 (873) 209
Net increase (decrease) in cash and cash equivalents5,504
 (73,175) 108,316
Cash and cash equivalents     
Beginning of period62,607
 135,782
 27,466
End of period$68,111
 $62,607
 $135,782
(Amounts in thousands)2019 2018 2017
Supplemental disclosure of cash flow information     
Cash paid during the period for interest$3,751
 $3,868
 $617
Cash paid during the period for income taxes50
 216
 566
Significant noncash activities     
Stock received as consideration for collaboration agreements$4,530
 $
 $
Receivables converted to preferred stock
 
 3,385
Stock and warrants issued in business combinations
 
 16,997
Stock issued to acquire noncontrolling interests
 
 5,082
Stock issued for reacquired in-process research and development
 159,323
 
Long-term debt issued to a related party in an asset acquisition
 30,000
 
Noncash dividend to shareholders
 
 22,385
Purchases of property and equipment included in accounts payable and other accrued liabilities694
 2,267
 2,257
Purchases of equipment financed through debt
 234
 
Receivable recorded in anticipation of dissolution of affiliate
 
 2,598
The following table provides a reconciliation of the cash, cash equivalents, and restricted cash balances as of December 31, 2019 and 2018 as shown above:
 2019 2018
Cash and cash equivalents$65,793
 $96,876
Restricted cash
 6,987
Cash and cash equivalents included in current assets held for sale2,223
 5,892
Restricted cash included in other assets418
 427
Cash, cash equivalents, and restricted cash$68,434
 $110,182
The accompanying notes are an integral part of these consolidated financial statements.

Intrexon Corporation and Subsidiaries
Consolidated Statements of Cash Flows
Years Ended December 31, 2017, 2016 and 2015
(Amounts in thousands)2017 2016 2015
Supplemental disclosure of cash flow information     
Cash paid during the period for interest$617
 $964
 $1,195
Cash paid during the period for income taxes566
 10
 1,165
Significant noncash financing and investing activities     
Stock received as consideration for collaboration agreements$
 $18,766
 $9,149
Preferred stock received as consideration for collaboration amendments
 120,000
 
Receivables converted to preferred stock3,385
 
 
Stock and warrants issued in business combinations16,997
 
 126,863
Stock issued to acquire noncontrolling interests5,082
 
 9,412
Stock issued in asset acquisition
 4,401
 
Contingent consideration assumed in asset acquisition
 3,660
 
Stock issued as payment for contingent consideration
 1,583
 
Noncash dividend to shareholders22,385
 
 172,419
Deferred consideration payable related to acquisition
 
 1,992
Purchases of equipment included in accounts payable and other accrued liabilities2,257
 652
 782
Receivable recorded in anticipation of dissolution of affiliate2,598
 
 
Transfer of inventory to breeding stock
 1,191
 
The accompanying notes are an integral part of these consolidated financial statements.

Intrexon CorporationPrecigen, Inc. and Subsidiaries
Notes to the Consolidated Financial Statements
(Amounts in thousands, except share and per share data)
1. Organization and Basis of Presentation
Precigen, Inc. ("Precigen"), formerly known as Intrexon Corporation, ("Intrexon"), a Virginia corporation, usesis a synthetic biology tocompany with an increasing focus on programming biological systemsits discovery and clinical stage activities to alleviate disease, remediate environmentaladvance the next generation of gene and cellular therapies to target the most urgent and intractable challenges in immuno-oncology, autoimmune disorders, and provide sustainable food and industrial chemicals, which may be accomplished through collaborations and joint ventures. Intrexon's primary domestic operations are in California, Florida, Maryland, and Virginia,infectious diseases. Precigen also continues to advance its methane bioconversion business and its primary international operations are in Belgium and Hungary.established bovine genetics company. There have been no commercialized products derived from Intrexon'seither directly by Precigen or through its collaborations or joint ventures ("JVs") to date.
PGEN Therapeutics, Inc. ("PGEN Therapeutics"), formerly known as Precigen, Inc., a dedicated discovery and clinical stage biopharmaceutical company advancing the next generation of gene and cellular therapies using precision technology to target urgent and intractable diseases in immuno-oncology, autoimmune disorders, and infectious diseases, is a wholly owned subsidiary of Precigen with primary operations in Maryland.
Precigen ActoBio, Inc. ("ActoBio"), formerly known as ActoBio Therapeutics, Inc., is pioneering a proprietary class of microbe-based biopharmaceuticals that enable expression and local delivery of disease-modifying therapeutics and is a wholly owned subsidiary of Precigen with primary operations in Belgium.
Exemplar Genetics, LLC ("Exemplar") is committed to enabling the study of life-threatening human diseases through the development of miniswine research models and services, as well as enabling the production of cells and organs in its genetically engineered swine for regenerative medicine applications and is a wholly owned subsidiary of Precigen with primary operations in Iowa.
Effective October 1, 2019, Precigen transferred substantially all of its proprietary methane bioconversion platform assets to a new wholly owned subsidiary, MBP Titan LLC ("MBP Titan"), with primary operations in California. MBP Titan's proprietary methane bioconversion platform is designed to turn natural gas into more valuable and usable energy and chemical products through novel, highly engineered bacteria that utilize specific energy feedstocks. Prior to October 1, 2019, MBP Titan was an operating division within Precigen. There was no impact to the accompanying consolidated financial statements resulting from the transfer of these assets.
Trans Ova Genetics, L.C. ("Trans Ova"), a providerProgentus, L.C. ("Progentus"), and ViaGen, L.C. ("ViaGen"), providers of advanced reproductive technologies, including services and other genetic processesproducts sold to cattle breeders and other producers, is a wholly owned subsidiary of Intrexon with primary operations in Iowa, Maryland, Missouri, Oklahoma and Texas.
Oxitec Limited ("Oxitec"), a pioneering company in biological insect control solutions, is a wholly owned subsidiary of Intrexon with primary operations in England and Brazil.
Intrexon Produce Holdings, Inc. ("IPHI") is a wholly owned subsidiary of Intrexon. Okanagan Specialty Fruits, Inc. ("Okanagan"), a company which developed and received regulatory approval for the world's first non-browning apple without the use of any flavor-altering chemical or antioxidant additives, is a wholly owned subsidiary of IPHI with primary operations in Canada. Fruit Orchard Holdings, Inc. ("FOHI") is a wholly owned subsidiary of IPHI with primary operations in Washington.
ViaGen, L.C. ("ViaGen"), a provider of genetic preservation and cloning technologies, and Exemplar Genetics, LLC ("Exemplar"), a provider of genetically engineered swine for medical and genetic research, are wholly owned subsidiaries with primary operations in California, Iowa, Maryland, Missouri, New York, Oklahoma, Texas, and Iowa, respectively.Washington.
In March 2017, Intrexon acquired the remaining 49% of the equity of Biological & Popular Culture, Inc. ("BioPop"), a California company developing artwork, children's toys and novelty goods that are derived from living organisms or enabled by synthetic biology for $900 in cash and 221,743 shares of Intrexon common stock valued at $5,082. Upon closing this transaction, BioPop became a wholly owned subsidiary of Intrexon.
As of December 31, 2017, Intrexon owned approximately 58% ofThrough April 8, 2019, Precigen consolidated AquaBounty Technologies, Inc. ("AquaBounty"), a company focused on improving productivity in commercial aquaculture.aquaculture and whose common stock is listed on the Nasdaq Stock Market. On April 9, 2019, AquaBounty completed an underwritten public offering that resulted in Precigen no longer having the contractual right to control AquaBounty's board of directors, and accordingly, Precigen deconsolidated AquaBounty. After remeasuring its retained interest in AquaBounty, Precigen recorded a loss on deconsolidation of $2,648, which is included in other income, net, on the accompanying consolidated statement of operations for the year ended December 31, 2019. The deconsolidation resulted in the derecognition of the carrying amount of $38,682 in net assets that are no longer reported in the accompanying consolidated balance sheet during the year ended December 31, 2019. See Notes 10, 11, and 12 for additional discussion of material impacts to the accompanying consolidated balance sheet as of December 31, 2019. After deconsolidating the entity in April 2019, Precigen accounted for these equity securities using the fair value option. In January 2017, in conjunctionOctober 2019, the independent members of the Company's board of directors, with the listing byrecommendation of the audit committee and an independent special committee of the Board, unanimously approved the sale of the Company's common shares held in AquaBounty to an affiliate of their commonThird Security, LLC ("Third Security"), a related party, for $21,587, resulting in the recognition of a realized gain of $7,348 which is included in unrealized and realized appreciation (depreciation) in fair value of equity securities and preferred stock, net, on the NASDAQ Stock Market, Intrexon purchased $25,000accompanying consolidated statement of additional AquaBounty common stockoperations for the year ended December 31, 2019.
On January 31, 2020, Precigen completed the sale of the majority of its bioengineering assets and subsequently distributed shares of AquaBounty common stockoperations, which are presented as a dividend to Intrexon shareholders.discontinued operations for all periods presented. See Notes 143 and 2223 for additionalfurther discussion.
Intrexon CorporationPrecigen and its consolidated subsidiaries are hereinafter referred to as the "Company."

Liquidity and Going Concern
Management believes that existing liquid assets as of December 31, 2019, as well as amounts secured subsequent to December 31, 2019 and before the issuance of these consolidated financial statements, will allow the Company to continue its operations for at least a year from the issuance date of these consolidated financial statements. These consolidated financial statements are presented in United States dollars and are prepared under accounting principles generally accepted in the United States of America ("U.S. GAAP"). The Company is subject to a number of risks similar to those of other companies conducting high-risk, early-stage research and development of product candidates. Principal among these risks are dependence on key individuals and intellectual property, competition from other products and companies, and the technical risks associated with the successful research, development and clinical manufacturing of its and its collaborators' product candidates. Additionally, the accompanying consolidated financial statements have been prepared on a going concern basis, which contemplates the realization of assets and the satisfaction of liabilities in the normal course of business. During the year ended December 31, 2019, the Company incurred a net loss attributable to Precigen of $322,324 and, as of December 31, 2019, has an accumulated deficit of $1,652,869. Management expects operating losses and negative cash flows to continue for the foreseeable future and, as a result, the Company will require additional capital to fund its operations and execute its business plan. In the absence of a significant source of recurring revenue, the Company's long-term success is dependent upon its ability to continue to raise additional capital in order to fund ongoing research and development, reduce uses of cash for operating and investing activities for nonhealthcare businesses, obtain regulatory approval of its products, successfully commercialize its products, generate revenue, meet its obligations and, ultimately, attain profitable operations.
Upon the original issuance of the Company's financial statements as of and for the year ended December 31, 2018, the Company's resources of cash, cash equivalents, and short-term investments were not sufficient to fund the Company's planned operations through one year after the date the 2018 consolidated financial statements were originally issued and accordingly, there was substantial doubt about the Company's ability to continue as a going concern. The analysis used to determine the Company's ability to continue as a going concern did not include cash sources outside of the Company's direct control that management expected to be available within the twelve months following the original issuance of the 2018 consolidated financial statements.
At the time of the original issuance of the 2018 consolidated financial statements, the Company could not ensure that it would be able to obtain sufficient additional funding through monetizing certain of its existing assets, entering into new license and collaboration agreements, issuing additional equity or debt instruments or any other means, and if it was able to do so, they may not be on satisfactory terms. The Company's ability to raise additional capital in the equity and debt markets, should the Company choose to do so, was dependent on a number of factors, including, but not limited to, the market demand for the Company's common stock, which itself is subject to a number of business risks and uncertainties, as well as the uncertainty that the Company would be able to raise such additional capital at a price or on terms that were favorable to the Company. Should the Company not be able to secure additional funding though these means, the Company could have had to engage in any or all of the following activities: (i) shift internal investments from subsidiaries and platforms whose potential for value creation was longer-term to near-term opportunities; (ii) sell certain of its operating subsidiaries to third parties; (iii) reduce operating expenditures for third-party contractors, including consultants, professional advisors and other vendors; and (iv) reduce or delay capital expenditures, including non-essential facility expansions, lab equipment, and information technology projects. The 2018 consolidated financial statements were prepared on a going concern basis and did not include any adjustments to the amounts and classification of assets and liabilities that may have been necessary in the event the Company could no longer continue as a going concern.
2. Summary of Significant Accounting Policies
Principles of Consolidation
The accompanying consolidated financial statements reflect the operations of the Company and its subsidiaries. All intercompany accounts and transactions have been eliminated.
Revenue Recognition (For the Years Ended December 31, 2019 and 2018)
Effective January 1, 2018, the Company applies Financial Accounting Standards Board ("FASB") Accounting Standards Codification ("ASC") Topic 606, Revenue from Contracts with Customers ("ASC 606"). Under ASC 606, the Company recognizes revenue when its customer obtains control of the promised goods or services, in an amount that reflects the consideration that the Company expects to receive in exchange for those goods or services. To determine revenue recognition for arrangements that are within the scope of ASC 606, the Company performs the following five steps: (i) identify the contract(s) with a customer, (ii) identify the promises and distinct performance obligations in the contract, (iii) determine the

transaction price, (iv) allocate the transaction price to the performance obligations in the contract, and (v) recognize revenue when (or as) the Company satisfies the performance obligations.
Collaboration and licensing revenues
The Company generateshas historically generated collaboration and licensing revenuerevenues through the execution of agreements with collaborators (known as exclusive channel collaborations "ECC" or "ECCs") and licensing agreements whereby the collaborators or the licensee obtain exclusive access to the Company's proprietary technologies for use in the research, development and commercialization of products and/or treatments in a contractually specified field of use. Generally, the terms of these agreements provide that the Company receives some or all of the following: (i) upfront payments upon consummation of the agreement,

agreement; (ii) reimbursements for costs incurred by the Company for research and development and/or manufacturing efforts related to specific applications provided for in the agreement,agreement; (iii) milestone payments upon the achievement of specified development, regulatory, and commercial activities,activities; and (iv) royalties on sales of products arising from the collaboration or licensing agreement. The agreement typically continues in perpetuity unless terminated and each of the Company's collaborators retain a right to terminate the agreement upon providing the Company written notice a certain period of time prior to such termination, generally 90 days.
The Company's collaboration and licensing agreements typically contain multiple promises, including technology licenses, research and development services and, in certain cases, manufacturing services. The Company determines whether each of the promises is a distinct performance obligation. As the nature of the promises in the Company's collaboration and licensing agreements are highly integrated and interrelated, the Company typically combines most of its promises into a single performance obligation. Because the Company is performing research and development services during early-stage development, the services are integral to the utilization of the technology license. Therefore, the Company has determined that the technology license and research and development services are typically inseparable from each other during the performance period of its collaboration and licensing agreements. Options to acquire additional services are considered to determine if they constitute material rights. Contingent manufacturing services that may be provided under certain of the Company's agreements are considered to be a separate future contract and not part of the current collaboration or licensing agreement.
At contract inception, the Company determines the transaction price, including fixed consideration and any estimated amounts of variable consideration. The upfront payment received upon consummation of the agreement is fixed and nonrefundable. Variable consideration is subject to a constraint and amounts are included in the transaction price to the extent that it is probable that a significant reversal in the amount of cumulative revenue recognized will not occur when the uncertainty associated with the variable consideration is subsequently resolved. Variable consideration may include reimbursements for costs incurred by the Company for research and development efforts; milestone payments upon the achievement of certain development, regulatory, and commercial activities; and royalties on sales of products arising from the collaboration or licensing agreement. The Company determines the initial transaction price and excludes variable consideration that is otherwise constrained pursuant to the guidance in ASC 606.
The transaction price is allocated to the performance obligations in the agreement based on the standalone selling price of each performance obligation. The Company typically groups the promises in its collaboration and licensing agreements into one performance obligation so the entire transaction price relates to this single performance obligation. The technology license included in the single performance obligation is considered a functional license. However, it is typically combined into a single performance obligation as the Company provides interrelated research and development services along with other obligations over an estimated period of performance. The Company utilizes judgment to determine the most appropriate method to measure its progress of performance under the agreement, primarily based on inputs necessary to fulfill the performance obligation. The Company evaluates its measure of progress to recognize revenue each reporting period and, if necessary, adjusts the measure of performance and related revenue recognition. The Company's measure of performance and revenue recognition involves significant judgment and assumptions, including, but not limited to, estimated costs and timelines to complete its performance obligations. The Company evaluates modifications and amendments to its contracts to determine whether any changes should be accounted for prospectively or on a cumulative catch-up basis.
Payments received for cost reimbursements for research and development efforts are recognized as revenue as the services are performed, in connection with the single performance obligation discussed above. The reimbursements relate specifically to the Company's efforts to provide services and the reimbursements are consistent with what the Company would typically charge other collaborators for similar services.
The Company assesses the uncertainty of when and if the milestone will be achieved to determine whether the milestone is included in the transaction price. The Company then assesses whether the revenue is constrained based on whether it is probable that a significant reversal of revenue would not occur when the uncertainty is resolved.

Royalties, including sales-based milestones, received under the agreements will be recognized as revenue when sales have occurred because the Company applies the sales- or usage-based royalties recognition exception provided for under ASC 606. The Company determined the application of this exception is appropriate because at the time the royalties are generated, the technology license granted in the agreement is the predominant item to which the royalties relate.
As the Company receives upfront payments in its collaboration and licensing agreements, it evaluates whether any significant financing components exist in its collaboration and licensing agreements. Based on the nature of its collaboration and licensing agreements, there are no significant financing components as the purpose of the upfront payment is not to provide financing. The purpose is to provide the collaborator with assurance that the Company will complete its obligations under the contract or to secure the right to a specific product or service at the collaborator's discretion. In addition, the variable payments generally align with the timing of performance or the timing of the consideration varies on the basis of the occurrence or nonoccurrence of a future event that is not substantially within the control of the collaborator or the Company.
From time to time, the Company and certain collaborators may cancel their agreements, relieving the Company of any further performance obligations under the agreement. Upon such cancellation or when the Company has determined no further performance obligations are required of the Company under an agreement, the Company recognizes any remaining deferred revenue as revenue.
Product and service revenues
The Company's product and service revenues are generated primarily through Trans Ova and include sales of advanced reproductive technologies, including the Company's bovine embryo transfer and in vitro fertilization processes and from genetic preservation and sexed semen processes and applications of such processes to other livestock, as well as sales of livestock and embryos produced using these processes and used in production. As each promised product or service is distinct, the Company recognizes the transaction price as revenue at a point in time when control of the promised product is transferred to the customer or when the promised service is rendered. Payment terms are typically due within 30 days of invoicing, which occurs prior to or when revenue is recognized.
Revenue Recognition (For the Year Ended December 31, 2017)
Collaboration and licensing revenues
The Company historically generated collaboration and licensing revenue through agreements with collaborators and licensing agreements whereby the collaborators or the licensee obtain exclusive access to the Company's proprietary technologies for use in the research, development, and commercialization of products and/or treatments in a contractually specified field of use. Generally, the terms of these agreements provide that the Company receives some or all of the following: (i) upfront payments upon consummation of the agreement; (ii) reimbursements for costs incurred by the Company for research and development and/or manufacturing efforts related to specific applications provided for in the agreement; (iii) milestone payments upon the achievement of specified development, regulatory, and commercial activities; and (iv) royalties on sales of products arising from the collaboration or licensing agreement.
The Company's collaboration and licensing agreements typically contain multiple elements, or deliverables, including technology licenses, research and development services, and in certain cases manufacturing services. The Company identifies the deliverables within the agreements and evaluates which deliverables represent separate units of accounting. Analyzing the agreements to identify deliverables requires the use of judgment. A deliverable is considered a separate unit of accounting when the deliverable has value to the collaborator or licensee on a standalone basis based on the consideration of the relevant facts and circumstances for each agreement.
Consideration received is allocated at the inception of the agreement to all identified units of accounting based on their relative selling price. When available, the relative selling price for each deliverable is determined using vendor specific objective evidence ("VSOE") of the selling price or third-party evidence of the selling price, if VSOE does not exist. If neither VSOE nor third-party evidence of the selling price exists, the Company uses its best estimate of the selling price for the deliverable. The amount of allocable consideration is limited to amounts that are fixed or determinable. The consideration received is allocated among the separate units of accounting, and the applicable revenue recognition criteria are applied to each of the separate units. The Company recognizes the revenue allocated to each unit of accounting as the Company delivers the related goods or services. If the Company determines that certain deliverables should be treated as a single unit of accounting, then the revenue is recognized using either a proportional performance or straight-line method, depending on whether the Company can reasonably estimate the level of effort required to complete its performance obligations under an arrangement and whether such performance obligations are provided on a best-efforts basis. As the Company cannot reasonably estimate its performance

obligations related to its collaborators or licensees, the Company recognizes revenue on a straight-line basis over the period it expects to complete its performance obligations, which is reevaluated each reporting period.
The terms of the Company's agreements may provide for milestone payments upon achievement of certain defined events. The Company applies the Milestone Method for recognizing milestone payments. Under the Milestone Method, the Company recognizes consideration that is contingent upon the achievement of a milestone in its entirety as revenue in the period in which the milestone is achieved only if the milestone is substantive in its entirety. A milestone is considered substantive when it meets all of the following criteria:
(1)The consideration is commensurate with either the entity's performance to achieve the milestone or the enhancement of the value of the delivered item or items as a result of a specific outcome resulting from the entity's performance to achieve the milestone;
(2)The consideration relates solely to past performance; and
(3)The consideration is reasonable relative to all of the deliverables and payment terms within the arrangement.
In the event that a milestone is not considered substantive, the Company recognizes the milestone consideration as revenue using the same method applied to upfront payments.
Research and development services are a deliverable satisfied by the Company in accordance with the terms of the collaboration and licensing agreements and the Company considers these services to be inseparable from the license to the core technology; therefore, reimbursements of services performed are recognized as revenue. Because reimbursement (i) is contingent upon performance of the services by the Company, (ii) does not include a profit component, and (iii) does not relate to any future deliverable, the revenue is recognized during the period in which the related services are performed and collection of such amounts is reasonably assured. Payments received for manufacturing services will be recognized when the earnings process related to the manufactured materials has been completed. Royalties to be received under the agreements will be recognized as earned.
From time to time, the Company and certain collaborators may cancel their agreements, relieving the Company of any further performance obligations under the agreement. When no further performance obligations are required of the Company under an agreement, the Company recognizes anythe remaining balance of deferred revenue.
Product and service revenues
The Company generatesCompany's product and service revenues are generated primarily through sales of productsTrans Ova and services which are created from technologies developed or owned by the Company. The Company's current offerings include sales of advanced reproductive technologies, including the Company's bovine embryo transfer and in vitro fertilization processes and from genetic preservation

and sexed semen processes and applications of such processes to other livestock, as well as sales of livestock and embryos produced using these processes and used in production. Revenue is recognized when (i) persuasive evidence of an arrangement exists, (ii) services have been rendered or delivery has occurred such that risk of loss has passed to the customer, (iii) the price is fixed or determinable, and (iv) collection from the customer is reasonably assured.
Research and Development
The Company considers that regulatory requirements inherent in the research and development of new products preclude it from capitalizing such costs. Research and development expenses include salaries and related costs of research and development personnel, including stock-based compensation expense, and the costs of consultants, certain in-licensedto acquire or reacquire technology rights, consultants, facilities, materials and supplies associated with research and development projects as well as various laboratory studies. Costs incurred in conjunction with collaboration and licensing arrangements are included in research and development. Indirect research and development costs include depreciation, amortization, and other indirect overhead expenses.
The Company has research and development arrangements with third parties that include upfront and milestone payments. As of December 31, 20172019 and 2016,2018, the Company had research and development commitments from continuing operations with third parties that had not yet been incurred totaling $10,682$15,369 and $10,631,$11,801, respectively. The commitments are generally cancellable by the Company at any time upon written notice.

Cash and Cash Equivalents
All highly liquid investments with an original maturity of three months or less at the date of purchase are considered to be cash equivalents. Cash balances at a limited number of banks may periodically exceed insurable amounts. The Company believes that it mitigates its risk by investing in or through major financial institutions with high quality credit ratings.institutions. Recoverability of investments is dependent upon the performance of the issuer. As of December 31, 20172019 and 2016,2018, the Company had cash equivalent investments in highly liquid money market accounts at major financial institutions of $43,012$47,238 and $43,808,$40,155, respectively.
Restricted Cash
Restricted cash representsrepresented funds deposited with the U.S.United States Treasury, as required by a court decision resulting from litigation against Trans Ova (Note 17).
Short-term and Long-term Investments
As of December 31, 2017,2019, short-term investments include U.S.United States government debt securities and certificates of deposit. The Company determines the appropriate classification as short-term or long-term at the time of purchase based on original maturities and management's reasonable expectation of sales and redemption. The Company reevaluates such classification at each balance sheet date. The Company's written investment policy requires investments to be explicitly rated by two of the three following rating services: Standard & Poor's, Moody's and/or Fitch and to have a minimum rating of A1, P1 and/or F-1, respectively, from those agencies. In addition, the investment policy limits the amount of credit exposure to any one issuer.
Equity Securities
The Company holdshas historically held equity securities of private and publicly traded companies, including investments received and/or purchased from certain collaborators. Other than investments accounted for usingThe Company evaluated whether to elect the equity method, thefair value option on an individual investment basis. The Company elected the fair value option to account for its equity securities held in these collaborators.publicly traded companies. These equity securities arewere recorded at fair value at each reporting date and arewere subject to market price volatility. Unrealized gains and losses resulting from fair value adjustments arewere reported in the consolidated statementstatements of operations. The fair value of theseCompany accounts for its investments in private companies using either the equity method, as discussed below, or the measurement alternative method for equity securities is subject to fluctuation in the future due to the volatility of the stock market,without readily determinable fair values, which represented cost and any adjustments for impairment or observable price changes in general economic conditionscertain transactions. In June 2019, in connection with its collaboration agreement with Surterra Holdings, Inc. ("Surterra"), the Company received common shares of Surterra's parent company, SH Parent, Inc. ("SH Parent") and accounted for these common shares using the measurement alternative method. As of December 31, 2019, there have been no adjustments for impairment or observable price changes for the SH Parent common shares and these shares have been reclassified to current assets held for sale as of December 31, 2019, and were subsequently sold in the financial conditions of these collaborators.January 2020 (Note 3). Equity securities that the Company doesdid not intend to sell within one year arewere classified as noncurrent in the consolidated balance sheet.sheets. See Notes 3 and 18 for additional discussion of certain equity securities.
TheFor equity securities received pursuant to a collaboration agreement, the Company recordsrecorded the fair value of securities received on the date the collaboration iswas consummated or the milestone iswas achieved using the closing, quoted pricefair value of the collaborator's security on that date, assuming the transfer of consideration iswas considered perfunctory. If the transfer of the consideration iswas not considered perfunctory, the Company considersconsidered the specific facts and circumstances to determine the appropriate date on which to evaluate fair value. The Company also evaluatesevaluated whether any discounts for trading restrictions or other basis for lack of marketability should be applied to the fair value of the securities at inception of the collaboration. In the event the Company concludesconcluded that a discount should be applied to securities accounted for under the fair value option, the fair value of the securities iswas adjusted at inception of the collaboration and re-evaluated at each reporting period thereafter.

Investments in Preferred Stock
The Company holds preferred stock in certain of its collaborators, most of which may be converted to common stock as described in Note 7. The Company elected the fair value option to account for its investments in preferred stock whereby the value of preferred stock is adjusted to fair value as of each reporting date and unrealized gains and losses are reported in the consolidated statement of operations. These investments are subject to fluctuation in the future due to, among other things, the likelihood and timing of conversion of certain of the preferred stock into common stock, the volatility of each collaborator's common stock, and changes in general economic and financial conditions of the collaborators. The investments are classified as noncurrent in the consolidated balance sheet since the Company does not intend to sell the investments nor expect the investments that are convertible into common stock to be converted within one year.
The Company is entitled to monthly dividends and records dividend income as described in Note 7.
Fair Value of Financial Instruments
Fair value is the price that would be received to sell an asset or paid to transfer a liability in an orderly transaction between market participants at the measurement date. As such, fair value is a market-based measurement that should be determined based on assumptions that market participants would use in pricing an asset and liability. As a basis for considering such assumptions, the Company uses a three-tier fair value hierarchy that prioritizes the inputs used in its fair value measurements. The hierarchy gives the highest priority to unadjusted quoted prices in active markets for identical assets or liabilities (Level 1 measurements) and the lowest priority to unobservable inputs (Level 3 measurements). The three levels of the fair value hierarchy are as follows:
Level 1:Quoted prices in active markets for identical assets and liabilities;
  
Level 2:Other than quoted prices included in Level 1 inputs that are observable for the asset or liability, either directly or indirectly; and
  
Level 3:Unobservable inputs for the asset or liability used to measure fair value to the extent that observable inputs are not available.

Concentrations of Risk
Due to the Company's mix of fixed and variable rate securities holdings, the Company's investment portfolio is susceptible to changes in interest rates. As of December 31, 2017,2019, there were no gross unrealized losses on the Company's short-term investments were not material.investments. From time to time, the Company may liquidate some or all of its investments to fund operational needs or other activities, such as capital expenditures or business acquisitions, or distribute its equity securities to shareholders as a stock dividend. Depending on which investments the Company liquidates to fund these activities, the Company could recognize a portion, or all, of the gross unrealized losses.
Financial instruments whichthat potentially subject the Company to concentrations of credit risk consist primarily of trade and related party receivables. The Company controls credit risk through credit approvals, credit limits, and monitoring procedures. The Company performs ongoing credit evaluations of its customers but generally does not require collateral to support accounts receivable.
Equity Method Investments
The Company accounts for its investments in each of its joint venturesJVs and for its investments in start-up entities backed by the Harvest Intrexon Enterprise Fund I, LP ("Harvest"), aall of which are related party, (Note 18)parties, using the equity method of accounting based upon relative ownership interest. The Company's investments in these entities are included in investments in affiliates in the accompanying consolidated balance sheets. See additional discussion related to certain of the Harvest start-up entities in Note 4 and to certain of the Company's JVs in Note 5.
TheEffective in April 2019, the Company accountsaccounted for its investment in Oragenics, Inc. ("Oragenics"), one of its collaborators,AquaBounty, using the fair value option. The fair value ofoption until the Company'sCompany sold the investment in Oragenics was $3,085 and $7,244 as of December 31, 2017 and 2016, respectively, and is included as equity securities in the accompanying consolidated balance sheets. The Company's ownership of Oragenics was 29.4% and 29.5% as of December 31, 2017 and 2016, respectively. Unrealized appreciation (depreciation) in the fair value of these securities was $(4,159), $(10,523), and $4,863 for the years ended December 31, 2017, 2016, and 2015, respectively.October 2019. See Note 71 for additional discussion regarding Oragenics.

In 2015, the Company determined that ZIOPHARM Oncology, Inc. ("ZIOPHARM") met the criteria of SEC Regulation S-X Article 3-09 for inclusion of separate financial statements of an equity method investment as the Company determined it had significant influence over ZIOPHARM until the Company distributed its share of ZIOPHARM common stock to shareholders in the form of a special stock dividend (Note 14). Upon disposition, the Company realized a gain of $81,401 during the year ended December 31, 2015.
Summarized financial data as of December 31, 2017 and 2016, and for the years ended December 31, 2017, 2016, and 2015, for the Company's equity method investments for which separate financial statements are not included, pursuant to SEC Regulation S-X Article 3-09, are shown in the following tables.
 December 31,
 2017 2016
Current assets$61,086
 $77,761
Non-current assets13,598
 11,040
Total assets74,684
 88,801
Current liabilities6,213
 11,588
Net assets$68,471
 $77,213
 Year Ended December 31,
 2017 2016 2015
Revenues, net$254
 $417
 $1,176
Operating expenses41,904
 62,373
 32,513
Operating loss(41,650) (61,956) (31,337)
Other, net(8) 1,535
 (64)
Net loss$(41,658) $(60,421) $(31,401)
AquaBounty.
Variable Interest Entities
The Company identifies entities that (i) do not have sufficient equity investment at risk to permit the entity to finance its activities without additional subordinated financial support or (ii) in which the equity investors lack an essential characteristic of a controlling financial interest as variable interest entities ("VIE" or "VIEs"VIEs"). The Company performs an initial and on-going evaluation of the entities with which the Company has variable interests to determine if any of these entities are VIEs. If an entity is identified as a VIE, the Company performs an assessment to determine whether the Company has both (i) the power to direct activities that most significantly impact the VIE's economic performance and (ii) have the obligation to absorb losses from or the right to receive benefits of the VIE that could potentially be significant to the VIE. If both of these criteria are satisfied, the Company is identified as the primary beneficiary of the VIE.
As of December 31, 20172019 and 2016,2018, the Company determined that certain of its collaborators and joint venturesJVs as well as Harvest were VIEs. The Company was not the primary beneficiary for these entities since it did not have the power to direct the activities that most significantly impact the economic performance of the VIEs. The Company's aggregate investment balances of these VIEs as of December 31, 20172019 and 2016,2018, were $185,261$1,461 and $159,115,$3,341, respectively, which represents the Company's maximum risk

of loss related to the identified VIEs. See Note 5 for discussion of the Company's future funding commitments for the significant JVs.
TradeAccounts Receivables
TradeAccounts receivables consist of credit extended to the Company's customers in the normal course of business and are reported net of an allowance for doubtful accounts. The Company reviews its customer accounts on a periodic basis and records bad debt expense for specific amounts the Company evaluates as uncollectible. Past due status is determined based upon contractual terms. Amounts are written off at the point when collection attempts have been exhausted. Management estimates uncollectible amounts considering such factors as current economic conditions and historic and anticipated customer performance. This estimate can fluctuate due to changes in economic, industry, or specific customer conditions whichthat may require adjustment to the allowance recorded by the Company. Management has included amounts believed to be uncollectible in the allowance for doubtful accounts.

The following table shows the activity in the allowance for doubtful receivable accounts from continuing operations for the years ended December 31, 2017, 2016,2019, 2018, and 2015:2017:
 2019 2018 2017
Beginning balance$4,991
 $4,631
 $3,703
Charged to operating expenses3,384
 1,627
 1,217
Write offs of accounts receivable, net of recoveries(862) (1,267) (289)
Ending balance$7,513
 $4,991
 $4,631
 2017 2016 2015
Beginning balance$3,703
 $2,081
 $565
Charged to operating expenses1,217
 1,963
 1,757
Write offs of accounts receivable, net of recoveries(289) (341) (241)
Ending balance$4,631
 $3,703
 $2,081

Inventory
The Company's inventory primarily includes adult female cows whichthat are used in certainTrans Ova's production processes and are recorded at acquisition cost using the first-in, first-out method or at market,net realizable value, whichever is lower. Work-in-process inventory includes allocations of production costs and facility costs for products currently in production and is recorded at the lower of cost or market.net realizable value. Significant declines in the price of cows could result in unfavorable adjustments to inventory balances.
Property, Plant and Equipment
Property, plant and equipment are stated at cost, less accumulated depreciation and amortization. Major additions or betterments are capitalized and repairs and maintenance are generally expensed as incurred. Depreciation and amortization is calculated using the straight-line method over the estimated useful lives of the assets. The estimated useful lives of these assets from continuing operations are as follows:
 Years
Land improvements4–204-15
Buildings and building improvements3–253-23
Furniture and fixtures1–10
Equipment1–109
Breeding stock1–4
Computer hardware and software1–7

Leasehold improvements are amortized over the shorter of the useful life of the asset or the applicable lease term, generally one to twentyfourteen years.
Operating Leases
The Company adopted ASC Topic 842, Leases ("ASC 842"), effective January 1, 2019. Under ASC 842, the Company determines if an arrangement is a lease at inception. Operating leases are included as right-of-use assets ("ROU Assets") and lease liabilities on the consolidated balance sheets. The Company has elected not to recognize ROU Assets or lease liabilities for leases with lease terms of one year or less.

Lease liabilities are recognized based on the present value of the future minimum lease payments over the lease term at commencement date. The initial measurement of the ROU Asset also includes any lease payments made, adjusted for lease incentives. For leases that contain non-lease payments, the Company accounts for the lease and non-lease components as a single lease component. Variable lease payments, which primarily include payments for non-lease components such as maintenance costs, are excluded from the ROU Assets and lease liabilities and are recognized in the period in which the obligation for those payments is incurred. As the Company's operating leases do not provide an implicit interest rate, the Company uses its incremental borrowing rate at the lease commencement date, which is the estimated rate the Company would be required to pay for a collateralized borrowing equal to the total lease payments over the term of the lease, in determining the present value of future payments. The lease term for all of the Company's leases includes the noncancelable period of the lease plus any additional periods covered by options that the Company is reasonably certain to exercise, either to extend or to not terminate the lease. Lease expense is recognized on a straight-line basis over the lease term.
Goodwill
Goodwill represents the future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized. Goodwill is reviewed for impairment at least annually. The Company performs a qualitative assessment to determine whether it is more-likely-than-not that the fair value of a reporting unit is less than its carrying amount prior to performing the goodwill impairment test. If this is the case, the goodwill impairment test is required. If it is more-likely-than-not that the fair value of a reporting unit is greater than the carrying amount, the quantitative goodwill impairment test is not required.
If the quantitative goodwill impairment test is required or elected to be performed, first, the fair value of the reporting unit is compared with its carrying amount (including goodwill). If the fair value of the reporting unit is less than its carrying amount, an indication of goodwill impairment exists for the reporting unit and the entity must record the impairment charge for the excess carrying amount, which is limited to the amount of goodwill allocated to the reporting unit. If the fair value of the reporting unit exceeds its carrying amount, no goodwill impairment charge is necessary.
The Company performs its annual impairment review of goodwill in the fourth quarter, or sooner if a triggering event occurs prior to the annual impairment review. In April 2019, as a result of the Company's change in segments (Notes 2 and 20), one of the Company's prior reporting units was separated into various reporting units. Accordingly, the Company performed a relative fair value allocation of certain of its goodwill to the applicable reporting units and reviewed the reallocated goodwill for impairment.
The fair value of the reporting units are primarily determined based on the income approach. The income approach is a valuation technique in which fair value is based from forecasted future cash flows, discounted at the appropriate rate of return commensurate with the risk as well as current rates of return for equity and debt capital as of the valuation date. The forecast used in the Company's estimation of fair value was developed by management based on historical operating results, incorporating adjustments to reflect management's planned changes in operations and market considerations. The discount rate utilizes a risk adjusted weighted average cost of capital. To assess the reasonableness of the calculated reporting unit fair values, the Company compares the sum of the reporting units' fair values to its market capitalization (per share stock price times the number of shares outstanding) and calculates an implied control premium (the excess of the sum of the reporting units' fair values over the market capitalization) and then assesses the reasonableness of its implied control premium.
See NoteNotes 3 and 11 for additional discussion regarding the results of this review forgoodwill impairment charges recorded in the year ended December 31, 2017.2019.

Intangible Assets
Intangible assets subject to amortization consist of patents, developed technologies and know-how; customer relationships; and trademarks acquired as a result of mergers and acquisitions. These intangible assets are subject to amortization, were recorded at fair value at the date of acquisition, and are stated net of accumulated amortization. Indefinite-lived intangible assets consist of in-process research and development technologies acquired in mergers or acquisitions and were recorded at fair value at the dates of the respective acquisitions.
The Company amortizes long-lived intangible assets to reflect the pattern in which the economic benefits of the intangible asset are expected to be realized. The intangible assets are amortized over their estimated useful lives, ranging from three to twenty-oneeighteen years for the patents, developed technologies, and know-how; customer relationships; and trademarks.

Impairment of Long-Lived Assets
Long-lived assets to be held and used, including property, plant and equipment and intangible assets subject to amortization, are reviewed for impairment whenever events or changes in circumstances indicate that the carrying amount of the assets may not be recoverable. Conditions that would necessitate an impairment assessment include a significant decline in the observable market value of an asset, a significant change in the extent or manner in which an asset is used, or a significant adverse change that would indicate that the carrying amount of an asset or group of assets is not recoverable.
Indefinite-lived intangible assets, including in-process research and development, are tested for impairment annually, or more frequently if events or circumstances between annual tests indicate that the asset may be impaired. Impairment losses on indefinite-lived intangible assets are recognized based solely on a comparison of their fair value to carrying value, without consideration of any recoverability test. The Company monitors the progression of its in-process research and development, as the likelihood of success is contingent upon commercial development or regulatory approval.
Self-insurance ReservesSee Notes 3 and 10 for additional discussion of impairment of long-lived assets for the three years ended December 31, 2019.
Effective January 1, 2017, the Company commenced a self-insurance program for a significant portion of its employee health benefit programs. Convertible Notes
The Company maintains stop-loss coverage with third party insurersallocated the proceeds received in July 2018 from the issuance of Precigen's 3.50% convertible senior notes due 2023 (the "Convertible Notes") between long-term debt (liability component) and additional paid-in capital (equity component) within the consolidated balance sheet. The original value assigned to limit its individual claims and total exposure under those programs. The Company estimates its accrued liability forlong-term debt is the ultimate costs to close known claims, including claims incurred but not yet reported to the Company,estimated fair value as of the balance sheet date.issuance date of a similar debt instrument without a conversion option. The Company's recorded estimated liabilityoriginal value assigned to additional paid-in capital represents the value of the conversion option and is calculated by deducting the fair value of the long-term debt from the principal amount of the Convertible Notes and is not remeasured as long as it continues to meet the requirements for self-insurance isequity classification. The original value of the conversion option will accrete to the carrying value of the long-term debt and result in additional noncash interest expense over the expected life of the Convertible Notes using the effective interest method.
Debt issuance costs related to the Convertible Notes are also allocated between long-term debt and additional paid-in capital based on the insurance company's incurred loss estimatesoriginal value assigned to each. Debt issuance costs allocated to long-term debt reduced the original carrying value and management's judgment, including assumptions and factors relatedwill accrete to the frequency and severity of claims and the Company's claims development history.
The assessment of self-insurance reserves is a highly subjective process that requires judgments about future events. Self-insurance reserves are reviewed at least quarterly to determine the adequacycarrying value of the accrualslong-term debt and related financial statement disclosure. The ultimate settlementresult in additional noncash interest expense over the expected life of self-insurance reserves may differ significantly from amounts the Company has accrued in its consolidated financial statements.Convertible Notes using the effective interest method. Debt issuance costs allocated to additional paid-in capital are recorded as reduction of the original value assigned to the conversion option.
See Note 12 for the further discussion of the Convertible Notes.
Foreign Currency Translation
The assets and liabilities of foreign subsidiaries, where the local currency is the functional currency, are translated from their respective functional currencies into United States dollars at the exchange rates in effect at the balance sheet date, with resulting foreign currency translation adjustments recorded in the consolidated statement of comprehensive loss. Revenue and expense amounts are translated at average rates during the period.
Income Taxes
Income taxes are accounted for under the asset and liability method. Deferred tax assets and liabilities are recognized for the future tax consequences attributable to both differences between the financial statement carrying amounts of existing assets and liabilities and their respective tax bases as well as operating loss and tax credit carryforwards. Deferred tax assets and liabilities are measured using enacted tax rates expected to apply to taxable income in the years in which those temporary differences are expected to be recovered or settled. The effect on deferred tax assets and liabilities of a change in tax rates is recognized in income in the period that includes the enactment date of the change. Valuation allowances are established when necessary to reduce deferred tax assets to the amount expected to be realized.
The Company identifies any uncertain income tax positions and recognizes the effect of income tax positions only if those positions are more likely than not of being sustained. Recognized income tax positions are measured at the largest amount that

is greater than 50% likely of being realized. Changes in recognition or measurement are reflected in the period in which the change in judgment occurs. The Company records interest, if any, related to unrecognized tax benefits as a component of interest expense. Penalties, if any, are recorded in selling, general and administrative expenses.

On December 22, 2017, the Tax Cuts and Jobs Act of 2017 (the "Tax Act") was signed into law and significantly revised U.S.United States corporate income tax law by, among other things, reducing the corporate income tax rate to 21% effective January 1, 2018, eliminating the corporate alternative minimum tax and implementing a modified territorial tax system that includes a one-time transition tax on deemed repatriated earnings from foreign subsidiaries. The SECUnited States Securities and Exchange Commission ("SEC") Staff issued Staff Accounting Bulletin No. 118 ("SAB 118") to address the application of U.S. GAAP in situations when a registrant does not have the necessary information available, prepared, or analyzed, including computations, in reasonable detail to complete the accounting for certain income tax effects of the Tax Act. The Company has recognized provisional tax impacts related to revaluation of most of the Company's domestic deferred tax assets, the impact of revaluation of those deferred tax assets on the Company's valuation allowance and elimination of the corporate alternative minimum tax, and included those amounts in the consolidated financial statements for the year ended December 31, 2017. The actual impact ofCompany completed its accounting for the Tax Act may differ fromin the Company's estimates duefourth quarter of 2018, and there were no significant adjustments to among other things, changes in interpretations and assumptions made, and guidance that may be issued as a result of the Tax Act.previously recorded provisional amounts.
In addition, the Tax Act implemented a new minimum tax on global intangible low-taxed income ("GILTI"). A company can elect an accounting policy to account for GILTI in either of the following ways:
As a period charge in the future period in which the tax arises; or
As part of deferred taxes related to the investment or subsidiary.
The Company is currentlyelected to account for GILTI as a period charge in the process of analyzing this provision and, as a result, is not yet ableperiod in which the tax arises. There was no impact to reasonably estimate its effect. Therefore, the Company has not made any provisional adjustments related to potential GILTI tax in itsaccompanying consolidated financial statements as of and has not made a policy decision regarding whether to record deferred taxes underfor the GILTI regime.years ended December 31, 2019 and 2018.
The accounting is expected to be completed within the one-year measurement period as allowed by SAB 118See Note 13 for items impacted or introduced byadditional discussion of the Tax Act.
Share-Based Payments
IntrexonPrecigen uses the Black-Scholes option pricing model to estimate the grant-date fair value of all stock options. The Black-Scholes option pricing model requires the use of assumptions for estimated expected volatility, estimated expected term of stock options, risk-free rate, estimated expected dividend yield, and the fair value of the underlying common stock at the date of grant. Since IntrexonPrecigen does not have sufficient history to estimate the expected volatility of its common stock price, expected volatility is based on a blended approach whichthat utilizes the volatility of Intrexon'sPrecigen's common stock and the volatility of peer public entities that are similar in size and industry. IntrexonPrecigen estimates the expected term of all options based on previous history of exercises. The risk-free rate is based on the U.S.United States Treasury yield curve in effect at the time of grant for the expected term of the option. The expected dividend yield is 0% as IntrexonPrecigen does not expect to declare cash dividends in the near future. The fair value of the underlying common stock is determined based on the quoted market price on the New York Stock Exchange.Nasdaq Global Select Market ("Nasdaq"). Forfeitures are recorded when incurred. The assumptions used in the Black-Scholes option pricing model for the years ended December 31, 2017, 20162019, 2018 and 20152017 are set forth in the table below:
 2019 2018 2017
Valuation assumptions     
Expected dividend yield0% 0% 0%
Expected volatility58%—64% 55%—59% 57%—60%
Expected term (years)6.25 6.25 6.25
Risk-free interest rate1.53%—2.58% 2.33%—3.06% 1.89%—2.27%

 2017 2016 2015
Valuation assumptions     
Expected dividend yield0% 0% 0%
Expected volatility57%—60% 59%—60% 59%—62%
Expected term (years)6.25 6.25 6.25
Risk-free interest rate1.89%—2.27% 1.23%—2.17% 1.56%—1.95%
Grant date fair value for the Company's restricted stock units ("RSUs") is based on the fair value of the underlying common stock as determined based on the quoted market price on the Nasdaq on the date of grant.
Net Loss per Share
Basic net loss per share is calculated by dividing net loss attributable to common shareholders by the weighted average shares outstanding during the period, without consideration of common stock equivalents. Diluted net loss per share is calculated by adjusting weighted average shares outstanding for the dilutive effect of common stock equivalents outstanding for the period, using the treasury-stock method. For purposes of the diluted net loss per share calculation, shares to be issued pursuant to convertible debt, stock options, RSUs, and warrants are

considered to be common stock equivalents but are excluded from the calculation of diluted net loss per share because their effect would be anti-dilutive and, therefore, basic and diluted net loss per share were the same for all periods presented.

Segment Information
While theThe Company generates revenues from multiple sources, including collaboration agreements, licensing,realigned its business in April 2019, and products and services primarily associated with bovine reproduction, management is organized aroundas a singular research and development focus to further the development of the Company's underlying synthetic biology technologies. Accordingly, the Company has determined that it operates in one segment.result, its chief operating decision maker ("CODM") now regularly reviews disaggregated financial information for various operating segments. As of December 31, 20172019, the Company's reportable segments were (i) PGEN Therapeutics; (ii) ActoBio; (iii) MBP Titan; and 2016,(iv) Trans Ova. All of Precigen's consolidated subsidiaries and operating divisions that did not meet the Company had $21,837quantitative thresholds to report separately are combined and $13,265, respectively,reported in a single category, All Other. See Note 1 for a description of long-lived assetseach of these reportable segments. Corporate expenses, which are not allocated to the segments and are managed at a consolidated level, include costs associated with general and administrative functions, including the Company's finance, accounting, legal, human resources, information technology, corporate communication, and investor relations functions. Corporate expenses exclude interest expense, depreciation and amortization, stock-based compensation expense, and equity in foreign countries.net loss of affiliates and include unrealized and realized gains and losses on the Company's securities portfolio as well as dividend income. The Company recognized revenues derived in foreign countries totaling $17,605, $11,969, and $5,918Company's segment presentation has been recast to retrospectively reflect the change from 1 reportable segment to multiple reportable segments. See Note 20 for further discussion of the years ended December 31, 2017, 2016 and 2015, respectively.Company's segments.
Use of Estimates
The preparation of financial statements in conformity with U.S. GAAP requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities, the disclosure of contingent assets and liabilities at the date of the financial statements, and the reported amounts of revenues and expenses during the reporting periods. Actual results could differ from those estimates.
Recently Adopted Accounting Pronouncements
The Company adopted ASC 842 on January 1, 2019 using the modified retrospective method as of the adoption date without restating prior periods. In addition, the Company elected to use the package of practical expedients which allowed the Company to not have to reassess whether expired or existing contracts contain leases under the new definition of a lease or the lease classification for expired or existing leases under ASC Topic 840. As a result of the adoption of ASC 842, the Company recorded ROU Assets and lease liabilities of $30,000 and $32,300, respectively, as of January 2017,1, 2019 for continuing operations. The difference between the Financial Accounting Standards Board ("FASB")ROU Assets and lease liabilities primarily represents the balance of deferred rent as of December 31, 2018 that resulted from historical straight-lining of operating leases expense, which was reclassified upon adoption to reduce the measurement of the ROU Assets. There was no impact to accumulated deficit.
In June 2018, the FASB issued Accounting Standards Update ("ASU") 2017-04, Intangibles-Goodwill and Other2018-07, Compensation-Stock Compensation (Topic 350)718): Simplifying the Test for Goodwill Impairment Improvements to Nonemployee Share-Based Payment Accounting ("ASU 2017-04"2018-07"). The provisions of ASU 2017-04 simplify how an entity is required2018-07 expand the scope of ASC Topic 718 to test goodwillinclude share-based payment transactions for impairment by eliminating Step 2acquiring goods and services from the goodwill impairment test. The Company elected to early adopt this standard in the fourth quarter of 2017 and utilized the guidance for the annual goodwill impairment test (Note 11).
In January 2017, the FASB issued ASU 2017-01, Business Combinations (Topic 805) - Clarifying the Definition of a Business ("ASU 2017-01"). The provisions of ASU 2017-01 clarify the definition of a business to assist entities with evaluating whether transactions should be accounted for as acquisitions (or disposals) of assets or businesses. The Company adopted this standard in the second quarter of 2017, and the implementation of this standard did not have a material impact on the Company's consolidated financial statements.
In October 2016, the FASB issued ASU 2016-17, Consolidation (Topic 810) - Interests Held through Related Parties That Are under Common Control ("ASU 2016-17"). The provisions of ASU 2016-17 amend the consolidation guidance on how a reporting entity that is the single decision maker of a VIE should treat indirect interests in the entity held through related parties that are under common control with the reporting entity when determining whether it is the primary beneficiary of that VIE.nonemployees. The Company adopted this standard effective January 1, 2017,2019, and the implementation of this standard did not have athere was no material impact onto the Company'saccompanying consolidated financial statements.
Recently Issued Accounting Pronouncements
In March 2016,October 2018, the FASB issued ASU 2016-09, Stock Compensation2018-18, Collaborative Arrangements (Topic 718) - Improvements to Employee Share-Based Payment Accounting ("808): Clarifying the Interaction between Topic 808 and Topic 606 ("ASU 2016-09"2018-18"). The provisions of ASU 2016-09 simplify various aspects of the accounting2018-18 clarify when certain transactions between collaborative arrangement participants should be accounted for employee share-based payment transactions, including the income tax consequences, classification of awards as either equity or liabilities, and classification on the statement of cash flows. The Company adopted this standard effective January 1, 2017. Upon adoption in the first quarter of 2017, the Company elected to recognize forfeitures as they occur and recorded an opening adjustment to additional paid-in capital and accumulated deficit for previously unrecognized stock-based compensation costs due to estimating forfeitures on unvested shares totaling $1,461. The Company also recognized deferred tax assets of $17,843 related to the excess tax benefits that previously arose directly from tax deductions related to equity compensation greater than stock-based compensation costs recognized in the consolidated financial statements and the cumulative adjustment for forfeitures. These deferred tax assets were fully offset by a valuation allowance (Note 13). The adoption was on a modified retrospective basis and had no impact on prior periods.
In March 2016, the FASB issued ASU 2016-07, Investments-Equity Method and Joint Ventures (Topic 323) - Simplifying the Transition to the Equity Method of Accounting ("ASU 2016-07"). The provisions of ASU 2016-07 eliminate the requirement that when an investment qualifies for use of the equity method as a result of an increase in the level of ownership interest or degree of influence, an adjustment must be made to the investment, results of operations, and retained earnings retroactively on a step-by-step basis as if the equity method had been in effect during all previous periods that the investment had been held. The Company adopted this standard effective January 1, 2017, and the implementation of this standard did not have a material impact on the Company's consolidated financial statements.

In July 2015, the FASB issued ASU 2015-11, Inventory (Topic 330) - Simplifying the Measurement of Inventory ("ASU 2015-11"). The provisions of ASU 2015-11 provide guidance for simplifying the calculation for subsequent measurement of inventory measured using the first-in-first-out or average cost methods. The Company adopted this standard effective January 1, 2017, and the implementation of this standard did not have a material impact on the Company's consolidated financial statements.
Recently Issued Accounting Pronouncements
In May 2014, the FASB issued ASU 2014-09, Revenue from Contracts with Customers ("ASU 2014-09"). The FASB issued ASU 2014-09 to clarify the principles for recognizing revenue and to develop a common revenue standard for U.S. GAAP. The standard outlines a single comprehensive model for entities to use in accounting for revenue arising from contracts with customers and supersedes the most current revenue recognition guidance. This guidance was originally effective for annual periods and interim periods within those annual periods beginning after December 15, 2016 and early adoption was not permitted. In August 2015, the FASB issued ASU 2015-14, under ASC Topic 606, Revenue from Contracts with Customers (Topic 606) - Deferral of the Effective Date, which deferred the effective date of the guidance in ASU 2014-09 by one year to December 15, 2017 for interim and annual reporting periods beginning after that date, and is effective for the Company for the year ending December 31, 2018. In 2016 and 2017, the FASB clarified the implementation guidance on principal versus agent, identifying performance obligations, licensing, narrow-scope improvements, practical expedients, and to expedite improvements to ASU 2014-09 by issuing ASU 2016-08, Revenue from Contracts with Customers (Topic 606) - Principal versus Agent Considerations, ASU 2016-10, Revenue from Contracts with Customers (Topic 606) - Identifying Performance Obligations and Licensing("ASC 606"), and ASU 2016-12, Revenue from Contractsincorporates unit-of-account guidance consistent with Customers (Topic 606) - Narrow-Scope Improvements and Practical Expedients, ASU 2016-20, Technical Corrections and ImprovementsASC 606 to Topic 606, Revenue from Contracts with Customers, and ASU 2017-13, Revenue Recognition (Topic 605), Revenue from Contracts with Customers (Topic 606), Leases (Topic 840), and Leases (Topic 842). The Company continues to progressaid in the evaluation of its collaborations and licensing agreements and product and service revenue arrangements to determine the impact, if any, that the implementation of this standard will have on the Company's consolidated financial statements. The Company completed its review of collaboration and licensing agreements and product and service revenue arrangements and determined that other than the cumulative catch-up adjustment and related increased deferred revenue discussed below the standard will not have a significant impact on its financial position, results of operations and disclosures for these revenue arrangements. Upon adoption using the modified retrospective approach in the first quarter of 2018, the Company expects to recognize a cumulative catch-up adjustment to increase deferred revenue and accumulated deficit in the net amount of $40,413. Under the current guidance, the Company recorded the upfront payment received from Ares Trading S.A. ("Ares Trading") net of the required payment made to ZIOPHARM as deferred revenue and is recognizing the deferred revenue over the estimated recognition period (Note 5). The new guidance requires gross presentation for these payments and would have resulted in the Company recording the full amount of the upfront payment received from Ares Trading as deferred revenue, recognizing the deferred revenue over the estimated recognition period, and immediately expensing the payment made to ZIOPHARM. As a result of this change under the new guidance, the Company expects to record $40,789 of additional deferred revenue relating to the additional unrecognized portion of the upfront payment, which will be recognized over the remainder of the expected recognition period. Additionally, the Company expects to reduce deferred revenue by $376 as a portion of the Company's previously deferred revenue related to a milestone payment received from ZIOPHARM pursuant to an ECC (Note 5) would have been recognized immediately under the new guidance. The milestone payment was received by the Company in form of the ZIOPHARM's common stock and under current guidance was valued on the date the milestone was achieved. Under the new guidance, the milestone would have been valued at contract inception with any difference in the value between contract inception and milestone achievement recorded as a gain or loss on the equity securities. Any revenue arrangements entered into subsequent to December 31, 2017 with financial or other significant terms which differ from the financial or other significant terms of the Company's existing revenue arrangements will be evaluated under this new standard.
In February 2018, the FASB issued ASU 2018-02, Income Statement-Reporting Comprehensive Income (Topic 220): Reclassification of Certain Tax Effects from Accumulated Other Comprehensive Income ("ASU 2018-02"). The provisions of ASU 2018-02 allow a reclassification from accumulated other comprehensive income to retained earnings for stranded tax effects resulting from the Tax Act.determination. The guidance is effective for annual periods and interim periods within those annual periods beginning after December 15, 2018, with early adoption permitted,2019, and is effective for the Company for the year ending December 31, 2019. The amendments in ASU 2018-02 may be applied either in the period of adoption or retrospectively to each period (or periods) in which the effect of the change in the U.S. federal corporate income tax rate in the Tax Act is recognized.2020. The Company is currently evaluating the impact that the implementation of this standard will have on the Company's consolidated financial statements.
In July 2017,October 2018, the FASB issued ASU 2017-11, Earnings Per Share (Topic 260), Distinguishing Liabilities from Equity (Topic 480) and Derivatives and Hedging (Topic 815)2018-17, Consolidation(Topic 810): I. AccountingTargeted Improvements to Related Party Guidance for Certain Financial Instruments with Down Round Features;

II. Replacement of the Indefinite Deferral for Mandatorily Redeemable Financial Instruments of Certain NonpublicVariable Interest Entities and Certain Mandatorily Redeemable Noncontrolling Interests with a Scope Exception ("ASU 2017-11"2018-17"). The amendments in Part Iprovisions of ASU 2017-11 change2018-17 modify the classification analysisguidance under ASC Topic 810 related to the evaluation of certain equity-linked financial instruments (or embedded features) with down round features. Whenindirect interests held through related parties under common control when determining whether certain financial instrumentsfees paid to decision makers and service providers are variable interests. Indirect interests held through related parties that are under common control are no longer considered to be the equivalent of direct interests in their entirety and instead should be classified as liabilities or equity instruments,considered on a down round feature no longer precludes equity classification when assessingproportional basis. This guidance more closely aligns with accounting of how indirect interests held through related parties under common control are considered for determining whether the instrument is indexed to an entity's own stock. The amendments also clarify existing disclosure requirements for equity-classified instruments. As a result,reporting entity must consolidate a freestanding equity-linked financial instrument (or embedded conversion option) no longer would be accounted for as a derivative liability at fair value as a result of the existence of a down round feature. For freestanding equity-classified financial instruments, the amendments require entities that present earnings per share ("EPS") in accordance with Topic 260 to recognize the effect of the down round feature when it is triggered. That effect is treated as a dividend and as a reduction of income available to common shareholders in basic EPS. Convertible instruments with embedded conversion options that have down round features are now subject to the specialized guidance for contingent beneficial conversion features (in Subtopic 470-20, Debt-Debt with Conversion and Other Options), including related EPS guidance (in Topic 260). The amendments in Part II of ASU 2017-11 re-characterize the indefinite deferral of certain provisions of Topic 480 that now are presented as pending content in the FASB codification, to a scope exception. Those amendments do not have an accounting effect.VIE. The guidance is effective for annual periods and interim periods within those annual periods beginning after December 15, 2018, with early adoption permitted,2019, and is effective for the Company for the year endedending December 31, 2019.2020. The Company is currently evaluating the impact that the implementation of this standard will have on the Company's consolidated financial statements.

In May 2017,August 2018, the FASB issued ASU 2017-09, Compensation-Stock Compensation (Topic 718) – Scope of Modification2018-15, Intangibles - Goodwill and Other-Internal-Use Software (Subtopic 350-40): Customer's Accounting ("for Implementation Costs Incurred in a Cloud Computing Arrangement That Is a Service Contract ("ASU 2017-09"2018-15"). The provisions of ASU 2017-09 provide2018-15 clarify the accounting for implementation costs of a hosting arrangement that is a service contract. The new standard requires an entity (customer) in a hosting arrangement that is a service contract to follow existing internal-use software guidance aboutto determine which changesimplementation costs to capitalize as an asset related to the terms or conditionsservice contract and which costs to expense. Capitalized implementation costs of a share-based payment award require an entity to apply modification accounting in Topic 718. An entityhosting arrangement that is a service contract should account forbe amortized over the effects of a modification unless (a) the fair valueterm of the modified award ishosting arrangement, which might extend beyond the same asnoncancelable period if there are options to extend or terminate. ASU 2018-15 also specifies the fair valuefinancial statement presentation of the original award, (b) the vesting conditions of the modified awardcapitalized implementation costs and related amortization, in addition to required disclosures for material capitalized implementation costs related to hosting arrangements that are the same as the vesting conditions of the original award and (c) the classification of the modified award as an equity instrument or a liability instrument is the same as the classification of the original award immediately before the original award is modified.service contracts. The guidance is effective for annual periods and interim periods within those annual periods beginning after December 15, 2017,2019, and is effective for the Company for the year ending December 31, 2018.2020. The amendments in ASU 2017-09 should be applied prospectively to an award modified on or afterCompany is currently evaluating the adoption date. Asimpact that the implementation of this standard is prospective in nature, the impact towill have on the Company's consolidated financial statements will depend on the nature of any future award modifications.statements.
In November 2016,August 2018, the FASB issued ASU 2016-18, Statement of Cash Flows2018-13, Fair Value Measurements (Topic 230) - Restricted Cash (A Consensus of820): Disclosure Framework-Changes to the FASB Emerging Issues Task Force) ("Disclosure Requirements for Fair Value Measurements ("ASU 2016-18"2018-13"). The provisions of ASU 2016-18 require amounts generally described as restricted cash2018-13 modify the disclosures related to recurring and restricted cash equivalentsnonrecurring fair value measurements. Disclosures related to be included with cashthe transfer of assets between Level 1 and cash equivalents when reconciling the total beginningLevel 2 hierarchies have been eliminated and ending balances for the periods presented on the statement of cash flows.various additional disclosures related to Level 3 fair value measurements have been added, modified, or removed. The guidance is effective for annual periods and interim periods within those annual periods beginning after December 15, 2017,2019, and is effective for the Company for the year ending December 31, 2018.2020. The Company is currently evaluating the impact ofthat the implementation of this standard will modifyhave on the Company's current disclosures and reclassifications within the consolidated statement of cash flows.financial statements.
In OctoberJune 2016, the FASB issued ASU 2016-16, Income Taxes2016-13, Financial Instruments-Credit Losses (Topic 740) - Intra-Entity Transfers326): Measurement of Assets Other Than Inventory Credit Losses on Financial Instruments ("ASU 2016-16"2016-13"). The provisions of ASU 2016-16 remove2016-13 modify the prohibitionimpairment model to utilize an expected loss methodology in ASC 740 against the immediate recognitionplace of the currentcurrently used incurred loss methodology, and deferred income tax effectsrequires a consideration of intra-entity transfersa broader range of assets other than inventory.reasonable and supportable information to inform credit loss estimates. The guidance is effective for annual periods and interim periods within those annual periods beginning after December 15, 2017,2019, and is effective for the Company for the year ending December 31, 2018. The implementation of this standard is not expected to have a material impact on the Company's consolidated financial statements.
In August 2016, the FASB issued ASU 2016-15, Statement of Cash Flows(Topic 230) - Classification of Certain Cash Receipts and Cash Payments ("ASU 2016-15"). The provisions of ASU 2016-15 address eight specific cash flow issues and how those certain cash receipts and cash payments are presented and classified in the statement of cash flows under Topic 230, Statement of Cash Flows, and other Topics. The guidance is effective for annual periods and interim periods within those annual periods beginning after December 15, 2017, and is effective for the Company for the year ending December 31, 2018. The implementation of this standard is not expected to have a material impact on the Company's consolidated financial statements.
In February 2016, the FASB issued ASU 2016-02, Leases (Topic 842) ("ASU 2016-02"). The provisions of ASU 2016-02 set out the principles for the recognition, measurement, presentation and disclosure of leases for both parties to a contract (i.e. lessees and lessors). The new standard requires lessees to apply a dual approach, classifying leases as either finance or operating leases based on the principle of whether or not the lease is effectively a financed purchase by the lessee. This classification will determine whether lease expense is recognized based on an effective interest method or on a straight-line

basis over the term of the lease, respectively. A lessee is also required to record a right-of-use asset and a lease liability for all leases with a term of greater than 12 months regardless of their classification. Leases with a term of 12 months or less will be accounted for in a similar manner as under existing guidance for operating leases today. ASU 2016-02 supersedes the previous lease standard, Topic 840, Leases. The guidance is effective for annual periods and interim periods within those annual periods beginning after December 15, 2018, and is effective for the Company for the year ending December 31, 2019.2020. The Company is currently evaluating its lease agreements to determine the impact that the implementation of this standard will have on the Company's consolidated financial statements as it relates to the classification of leases under the dual approach and the recognition of a right-of-use asset and a lease liability.
In January 2016, the FASB issued ASU 2016-01, Financial Instruments - Overall (Subtopic 825-10) - Recognition and Measurement of Financial Assets and Financial Liabilities ("ASU 2016-01"). The provisions of ASU 2016-01 make targeted improvements to enhance the reporting model for financial instruments to provide users of financial statements with more decision-useful information, including certain aspects of recognition, measurement, presentation, and disclosure of financial instruments. The guidance is effective for annual periods and interim periods within those annual periods beginning after December 15, 2017, and is effective for the Company for the year ending December 31, 2018. The implementation of this standard is not expected to have a material impact on the Company's consolidated financial statements.
Reclassifications
Certain insignificant reclassifications have been made to the prior year consolidated financial statements to conform to the current year presentation.
3. Discontinued Operations
On January 1, 2020, the Company and TS Biotechnology Holdings, LLC ("TS Biotechnology"), a related party and an entity managed by Third Security, entered into a Stock and Asset Purchase Agreement pursuant to which the Company agreed to sell a majority of the Company's bioengineering assets and operations to TS Biotechnology for $53,000 and certain contingent payment rights (the "TS Biotechnology Sale"). The TS Biotechnology Sale closed on January 31, 2020. The assets and operations sold in the TS Biotechnology Sale included the following wholly owned subsidiaries, as well as certain equity securities held in Oragenics, Inc. ("Oragenics") and SH Parent that were directly related to the subsidiaries sold:
Intrexon Produce Holdings, Inc. is the parent company of the Company's non-browning apple subsidiaries, Okanagan Specialty Fruits, Inc. and Fruit Orchard Holdings, Inc. (collectively referred herein as "Okanagan");
Intrexon UK Holdings, Inc. is the parent company of Oxitec Limited and subsidiaries, which is a pioneering company in biological insect solutions (referred to herein as "Oxitec");
ILH Holdings, Inc. includes the Company's fine chemicals operations that were focused primarily on microbial production of therapeutic compounds ("Fine Chemicals"); and
Blue Marble AgBio LLC which was formed in January 2020 and includes the Company's agriculture biotechnology assets and operations which were previously a division within Precigen ("AgBio").
Additionally, on January 2, 2020, the Company sold its equity interest in EnviroFlight, LLC ("EnviroFlight"), a JV with Darling Ingredients, Inc. ("Darling"), and related intellectual property rights to Darling for $12,200 (the "EnviroFlight Sale"). Unless referenced separately, the TS Biotechnology Sale and the EnviroFlight Sale are collectively referred to as the "Transactions".
The Transactions were approved by the Company's independent members of the board of directors in December 2019. The Transactions represent a strategic shift of the Company towards the Company becoming a primarily healthcare company

advancing technologies and products that address complex healthcare challenges. The assets, liabilities, and operations related to the Transactions are reclassified and presented as discontinued operations in the accompanying consolidated financial statements for all periods. Immediately prior to the reclassification, the Company evaluated goodwill, long-lived assets, and the equity method investment included in the Transactions for impairment. The Company recorded an impairment charge of $79,396, including $58,042 and $21,354 related to goodwill and other long-lived assets, respectively, at the Okanagan, Oxitec, Fine Chemicals, and AgBio reporting units. Additionally, the Company recorded a $10,283 impairment charge for the write down of the equity method investment and related intangible assets included in the EnviroFlight Sale. These impairment charges are included in loss from discontinued operations in the accompanying consolidated statement of operations for the year ended December, 31, 2019. As of December 31, 2019, the Company has estimated $942 of selling costs related to the Transactions.
The carrying values of the major classes of assets and liabilities included in assets and liabilities held for sale for the Transactions are as follows:
 December 31, 2019
 TS Biotechnology Sale EnviroFlight Sale Total
Assets     
Cash and cash equivalents$2,223
 $
 $2,223
Other current assets9,698
 
 9,698
Property, plant and equipment, net51,975
 
 51,975
Intangible assets, net20,891
 4,383
 25,274
Investments in affiliates
 7,817
 7,817
Right-of-use assets13,622
 
 13,622
Other noncurrent assets212
 
 212
Total assets held for sale$98,621
 $12,200
 $110,821
Liabilities     
Deferred revenue, current (1)$8,723
 $
 $8,723
Operating lease liabilities, current2,459
 
 2,459
Other current liabilities3,058
 41
 3,099
Deferred revenue, net of current portion (2)19,410
 
 19,410
Operating lease liabilities, net of current portion12,623
 
 12,623
Other long-term liabilities1,019
 
 1,019
Total liabilities held for sale$47,292
 $41
 $47,333
(1)Includes deferred revenue, current, from related parties of $1,243.
(2)Includes deferred revenue, net of current portion, from related parties of $6,836.

 December 31, 2018
 TS Biotechnology Sale EnviroFlight Sale Total
Assets     
Cash and cash equivalents$5,892
 $
 $5,892
Other current assets3,263
 
 3,263
Property, plant and equipment, net41,978
 
 41,978
Intangible assets, net31,782
 8,547
 40,329
Investments in affiliates
 16,720
 16,720
Goodwill55,958
 
 55,958
Other noncurrent assets1,376
 
 1,376
Total assets held for sale$140,249
 $25,267
 $165,516
Liabilities     
Deferred revenue, current (1)$4,466
 $
 $4,466
Other current liabilities3,874
 
 3,874
Deferred revenue, net of current portion (2)7,482
 
 7,482
Other long-term liabilities3,476
 
 3,476
Total liabilities held for sale$19,298
 $
 $19,298
(1)Includes deferred revenue, current, from related parties of $443.
(2)Includes deferred revenue, net of current portion, from related parties of $7,455.
The following tables present the financial results of discontinued operations:
 Year Ended December 31, 2019
 TS Biotechnology Sale EnviroFlight Sale Total
Revenue (1)$12,307
 $
 $12,307
Operating expenses (2)116,091
 10,794
 126,885
Operating loss(103,784) (10,794) (114,578)
Other expense, net(272) 
 (272)
Equity in net loss of affiliates
 (4,314) (4,314)
Loss before income taxes(104,056) (15,108) (119,164)
Income tax benefit3,005
 
 3,005
Loss from discontinued operations$(101,051) $(15,108) $(116,159)
(1)Includes revenue recognized from related parties of $3,042.
(2)Includes the impairment charge of $89,679 related to the Transactions discussed above.

 Year Ended December 31, 2018
 TS Biotechnology Sale EnviroFlight Sale Total
Revenue (1)$9,396
 $
 $9,396
Operating expenses (2)111,039
 470
 111,509
Operating loss(101,643) (470) (102,113)
Other expense, net(1,757) 
 (1,757)
Equity in net loss of affiliates
 (2,622) (2,622)
Loss before income taxes(103,400) (3,092) (106,492)
Income tax benefit6,103
 
 6,103
Loss from discontinued operations$(97,297) $(3,092) $(100,389)
(1)Includes revenue recognized from related parties of $4,665.
(2)
Includes an impairment charge of $60,504 recorded in 2018 related to Oxitec's developed technology targeting the Aedes Aegypti mosquito and a $5,057 loss on disposal of certain leasehold improvements, equipment and other fixed assets in conjunction with the closing of one of Oxitec's research and development facilities in Brazil.
 Year Ended December 31, 2017
 TS Biotechnology Sale EnviroFlight Sale Total
Revenue (1)$11,518
 $
 $11,518
Operating expenses (2)53,028
 470
 53,498
Operating loss(41,510) (470) (41,980)
Other expense, net(7,506) 
 (7,506)
Equity in net loss of affiliates
 (1,847) (1,847)
Loss before income taxes(49,016) (2,317) (51,333)
Income tax benefit4,952
 
 4,952
Loss from discontinued operations$(44,064) $(2,317) $(46,381)
(1)Includes revenue recognized from related parties of $8,185.
(2)Includes an impairment charge of $2,950 recorded as part of its annual impairment assessment of indefinite-lived intangible assets.

The following table presents the significant non-cash items, investments in EnviroFlight and purchases of property, plant and equipment for the discontinued operations that are included in the accompanying consolidated statements of cash flows.
 Year Ended December 31,
 2019 2018 2017
Adjustments to reconcile net loss to net cash used in operating activities     
Depreciation and amortization$5,107
 $9,007
 $9,536
Impairment loss89,679
 60,504
 2,950
Unrealized and realized depreciation on equity securities and preferred stock, net458
 1,927
 7,544
Equity in net loss of EnviroFlight4,314
 2,622
 1,847
Stock-based compensation expense2,507
 3,872
 4,683
Deferred income taxes(2,710) (5,703) (4,575)
Cash flows from investing activities     
Investments in EnviroFlight(2,000) (12,250) (4,750)
Purchases of property, plant and equipment(23,326) (21,191) (13,455)
Also see Note 23 below.
Equity Method Investments
The Company accounted for its investment in EnviroFlight using the equity method of accounting.
The Company accounted for its equity securities held in Oragenics, one of its collaborators and a related party, using the fair value option. Oragenics was considered an equity method investment through September 30, 2018.
Summarized financial data for equity method investments included in discontinued operations during the periods below are shown in the following tables.
 December 31,
 2019 2018
Current assets$703
 $5,119
Noncurrent assets30,549
 29,326
Total assets31,252
 34,445
Current liabilities2,352
 1,005
Non-current liabilities88
 
Total liabilities2,440
 1,005
Net assets$28,812
 $33,440
 Year Ended December 31,
 2019 2018 2017
Revenues$510
 $268
 $254
Operating expenses9,159
 12,709
 10,671
Operating loss(8,649) (12,441) (10,417)
Other, net21
 39
 (8)
Net loss$(8,628) $(12,402) $(10,425)
Where applicable, the notes to the consolidated financial statements have been updated to reflect information pertaining to the Company's continuing operations.

4. Mergers and Acquisitions
Asset Acquisition of Certain Harvest Entities
In September 2018, the Company, through its wholly owned subsidiary ActoBio, issued $30,000 of convertible promissory notes to Harvest, a related party, to acquire Harvest's ownership in CRS Bio, Inc. ("CRS Bio"); Genten Therapeutics, Inc. ("Genten Therapeutics"); and Relieve Genetics, Inc. ("Relieve Genetics") (collectively the "Harvest entities"). The Company also received $15,500 cash in the transaction from the acquisition of the Harvest entities. Prior to the transaction, the Company held a noncontrolling interest in the Harvest entities, with a combined carrying value for all entities of $4,303, and accounted for its ownership using the equity method of accounting. Following the transaction, the Company owns 100% of the equity interests of the Harvest entities including the rights that had been previously licensed to the Harvest entities by the Company. The Harvest entities did not meet the definition of a business and accordingly, the transaction was accounted for as an asset acquisition.
By reacquiring the rights previously licensed to the Harvest entities, the Company was relieved from its obligations under the original ECCs and therefore wrote off deferred revenue of $10,078 in September 2018 as part of the transaction. The remaining value acquired of $8,721 was considered in-process research and development related to the reacquired rights under the ECCs and expensed immediately.
See Note 12 for additional discussion of the convertible promissory notes.
GenVec Acquisition
In June 2017, pursuant to an Agreement and Plan of Merger (the "GenVec Merger Agreement"), the Company acquired 100% of the outstanding shares of GenVec, Inc. ("GenVec"), a clinical-stage company and pioneer in the development of AdenoVerse gene delivery technology. Pursuant to the GenVec Merger Agreement, the former shareholders of GenVec received an aggregate of 684,240 shares of the Company's common stock and have the right to receive contingent consideration equal to 50% of any milestone or royalty payments received under one of GenVec's collaboration agreements, provided such payments are received within three years after the closing of the transaction. The Company also assumed warrants held by certain former shareholders of GenVec. The results of GenVec's operations subsequent to the acquisition date have been included in the consolidated financial statements.
The fair value of the total consideration transferred was $17,582. The acquisition date fair value of each class of consideration transferred is presented below:
Common shares$15,616
Warrants1,381
Contingent consideration585
 $17,582
Common shares$15,616
Warrants1,381
Contingent consideration585
 $17,582


The fair value of the shares of the Company's common stock issued was based on the quoted closing price of the Company's common stock immediately prior to the closing of the acquisition. The fair value of the warrants assumed was estimated using the Black-Scholes option-pricing model. The fair value of the contingent consideration was determined using a probability weighted discounted cash flows model and is considered a freestanding financial instrument and recorded at fair value each reporting period. The estimated fair value of assets acquired and liabilities assumed at the acquisition date is shown below:
Cash and cash equivalents$2,054
Short-term investments542
Trade receivables75
Other receivables97
Prepaid expenses and other227
Property and equipment250
Intangible assets14,000
Other noncurrent assets58
Total assets acquired17,303
Accounts payable2,158
Accrued compensation and benefits1,226
Other accrued expenses856
Other long-term liabilities92
Deferred tax liabilities239
Total liabilities assumed4,571
Net assets acquired12,732
Goodwill4,850
Total consideration$17,582
Cash and cash equivalents$2,054
Short term investments542
Trade receivables75
Other receivables97
Prepaid expenses and other227
Property and equipment250
Intangible assets14,000
Other noncurrent assets58
Total assets acquired17,303
Accounts payable2,158
Accrued compensation and benefits1,226
Other accrued expenses856
Other long term liabilities92
Deferred tax liabilities239
Total liabilities assumed4,571
Net assets acquired12,732
Goodwill4,850
Total consideration$17,582

The acquired intangible assets include developed technology, the fair value of which was determined using the multi-period excess earning method, which is a variation of the income approach that converts future cash flows to single discounted present value amounts. The intangible assets are being amortized over a useful life of eleven years. Goodwill, which is not deductible for tax purposes, represents the assembled workforce and the anticipated buyer-specific synergies arising from the combination of the Company's and GenVec's technology.
Acquisition-related costs totaling $507 and $12 are included in selling, general and administrative expenses in the accompanying consolidated statements of operations for the years ended December 31, 2017 and 2016, respectively.
Oxitec Acquisition
In September 2015, pursuant to a Stock Purchase Agreement (the "Oxitec Purchase Agreement"), the Company acquired 100% of the issued outstanding share capital of Oxitec. The aggregated consideration paid consisted of (i) 1,359,343 shares of the Company's common stock (the "Stock Consideration") and (ii) $90,199 in cash (the "Cash Consideration"), inclusive of net cash and working capital adjustments as defined in the Oxitec Purchase Agreement totaling $9,449. Stock Consideration totaling 480,422 shares and Cash Consideration totaling $1,991 were withheld as escrow at closing and were issued and paid, respectively, in March 2017. The results of Oxitec's operations subsequent to the acquisition date have been included in the consolidated financial statements.
The fair value of the total consideration transferred was $146,394. The acquisition date fair value of the Stock Consideration and Cash Consideration is presented below:
Cash$90,199
Common shares56,195
 $146,394

The fair value of the shares of the Company common stock issued was based on the quoted closing price of the Company's common stock as of the closing date of the acquisition. The estimated fair value of assets acquired and liabilities assumed at the acquisition date is shown below:
Cash$3,780
Trade receivables125
Other receivables7,395
Prepaid expenses and other121
Property, plant, and equipment1,198
Intangible assets96,854
Total assets acquired109,473
Accounts payable1,187
Accrued compensation and benefits246
Other accrued liabilities210
Deferred revenue120
Deferred tax liabilities12,584
Total liabilities assumed14,347
Net assets acquired95,126
Goodwill51,268
Total consideration$146,394
The acquired intangible assets primarily include in-process research and development, the fair value of which was determined using the multi-period excess earning method, which is a variation of the income approach that converts future cash flows to single discounted present value amounts. In November 2016, the Company re-evaluated certain of the acquired in-process research and development technology and determined it was placed in service as developed technology and began amortizing the original amount capitalized using a useful life of eighteen years. Goodwill, which is not deductible for tax purposes, represents the assembled workforce and the potential for future Oxitec products and technologies.
Acquisition-related costs totaling $1,675 are included in selling, general and administrative expenses in the accompanying consolidated statement of operations for the year ended December 31, 2015.2017.
Okanagan Acquisition
In April 2015, pursuant to a Stock Purchase Agreement (the "Okanagan Purchase Agreement"), the Company acquired 100% of the outstanding shares of Okanagan. Pursuant to the Okanagan Purchase Agreement, the former shareholders of Okanagan received an aggregate of 707,853 shares of the Company's common stock and $10,000 cash in exchange for all shares in Okanagan. The results of Okanagan's operations subsequent to the acquisition date have been included in the consolidated financial statements.
The fair value of the total consideration transferred was $40,933. The acquisition date fair value of each class of consideration transferred is presented below:
Cash$10,000
Common shares30,933
 $40,933

The fair value of the shares of the Company's common stock issued was based on the quoted closing price of the Company's common stock as of the closing date of the acquisition. The estimated fair value of assets acquired and liabilities assumed at the acquisition date is shown below:
Cash$58
Trade receivables16
Other receivables49
Property, plant, and equipment32
Intangible assets36,500
Total assets acquired36,655
Accounts payable181
Deferred revenue181
Deferred tax liabilities8,847
Total liabilities assumed9,209
Net assets acquired27,446
Goodwill13,487
Total consideration$40,933
The acquired intangible assets primarily include developed technology, patents and know-how and the fair values of the acquired assets were determined using the with-and-without method, which is a variation of the income approach that utilizes estimated cash flows with all assets in place at the valuation date and estimated cash flows with all assets in place except the intangible assets at the valuation date. The intangible assets are being amortized over a useful life of fourteen years. Goodwill, which is not deductible for tax purposes, represents potential future applications of Okanagan's technology to other fruits, including additional apple varietals, and anticipated buyer-specific synergies arising from the combination of the Company's and Okanagan's technologies.
Acquisition-related costs totaling $267 are included in selling, general and administrative expenses in the accompanying consolidated statement of operations for the year ended December 31, 2015.
ActoGeniX Acquisition
In February 2015, the Company acquired 100% of the membership interests of ActoGeniX NV ("ActoGeniX"), a European biopharmaceutical company, pursuant to a Stock Purchase Agreement (the "ActoGeniX Purchase Agreement"). ActoGeniX's platform technology complements the Company's suite of proprietary technologies available for current and future collaborators. Pursuant to the ActoGeniX Purchase Agreement, the former members of ActoGeniX received an aggregate of 965,377 shares of the Company's common stock and $32,739 in cash in exchange for all membership interests of ActoGeniX. The results of ActoGeniX's operations subsequent to the acquisition date have been included in the consolidated financial statements.
The fair value of the total consideration transferred was $72,474. The acquisition date fair value of each class of consideration transferred is presented below:
Cash$32,739
Common shares39,735
 $72,474

The fair value of the shares of the Company's common stock issued was based on the quoted closing price of the Company's common stock as of the closing date of the acquisition. The estimated fair value of assets acquired and liabilities assumed at the acquisition date is shown below:
Cash$3,180
Other receivables305
Prepaid expenses and other31
Property, plant and equipment209
Intangible assets68,100
Other noncurrent assets23
Total assets acquired71,848
Accounts payable230
Accrued compensation and benefits196
Other accrued liabilities253
Deferred revenue732
Deferred tax liabilities612
Total liabilities assumed2,023
Net assets acquired69,825
Goodwill2,649
Total consideration$72,474
The acquired intangible assets primarily include in-process research and development, the fair value of which was determined using the multi-period excess earnings and with-and-without methods, which are both variations of the income approach that convert future cash flows to single discounted present value amounts. In August 2015, the Company re-evaluated the acquired in-process research and development technology and determined that it was placed in service as developed technology and began amortizing the original amount capitalized using a useful life of eighteen years. Goodwill, which is not deductible for tax purposes, represents the assembled workforce and anticipated buyer-specific synergies arising from the combination of the Company's and ActoGeniX's technologies.
Acquisition-related costs totaling $381 are included in selling, general and administrative expenses in the accompanying consolidated statement of operations for the year ended December 31, 2015.
Unaudited Condensed Pro Forma Financial Information
GenVec's results of operations subsequent to the acquisition are included in the consolidated statement of operations. The following unaudited condensed pro forma financial information for the years ended December 31, 2017 and 2016, is presented as if the acquisition had been consummated on January 1, 2016:
 Year Ended December 31,
 2017 2016
 Pro Forma
Revenues$231,213
 $191,437
Loss before income taxes(136,966) (201,210)
Net loss(134,275) (197,144)
Net loss attributable to the noncontrolling interests9,802
 3,662
Net loss attributable to Intrexon(124,473) (193,482)

The results of operations of the 2015 acquisitions discussed above subsequent to the acquisitions are included in the consolidated statementstatements of operations. The following unaudited condensed pro forma financial information for the year ended December 31, 20152017, is presented as if the 2015 acquisitionsacquisition had been consummated on January 1, 2014:2016:
 Year Ended December 31,
 2017
 Pro Forma
Revenues$219,695
Loss from continuing operations before income taxes(85,633)
Net loss(134,275)
Net loss attributable to the noncontrolling interests9,802
Net loss attributable to Precigen(124,473)

 Year Ended December 31, 2015
 Pro Forma
Revenues$174,558
Loss before income taxes(99,751)
Net loss(99,594)
Net loss attributable to the noncontrolling interests3,501
Net loss attributable to Intrexon(96,093)

4.5. Investments in Joint Ventures
S & I Ophthalmic
In September 2013, the Company entered into a Limited Liability Company Agreement ("Sun LLC Agreement") with Sun Pharmaceutical Industries, Inc. ("Sun Pharmaceutical Subsidiary"), an indirect subsidiary of Sun Pharmaceutical Industries Ltd. ("Sun Pharmaceutical"), an international specialty pharmaceutical company focused on chronic diseases, to form S & I Ophthalmic, LLC ("S & I Ophthalmic"). The Sun LLC Agreement governs the affairs and the conduct of business of S & I Ophthalmic. S & I Ophthalmic leverages experience and technology from both the Company and Sun Pharmaceutical. Both the Company and Sun Pharmaceutical Subsidiary made an initial capital contribution of $5,000 in October 2013 for a 50% membership interest in S & I Ophthalmic. S & I Ophthalmic is governed by a board of managers which has four members, two each from the Company and Sun Pharmaceutical Subsidiary. In 2015, both the Company and Sun Pharmaceutical Subsidiary made subsequent capital contributions of $5,000.
In December 2017, both the Company and Sun Pharmaceutical Subsidiary agreed to dissolve S & I Ophthalmic and terminate the related ECC agreement. The Company is entitled to receive $2,598 upon the dissolution of S & I Ophthalmic which represents the Company's portion of S & I Ophthalmic's remaining cash after all liabilities are settled and is included in related party receivables in the accompanying consolidated balance sheet as of December 31, 2017. The Company's investment in S & I Ophthalmic was $3,236 as of December 31, 2016 and is included in investments in affiliates in the accompanying consolidated balance sheet.
OvaXon
In December 2013, the Company and OvaScience, Inc. ("OvaScience"), a life sciences company focused on the discovery, development and commercialization of new treatments for infertility, entered into a Limited Liability Company Agreement ("OvaXon LLC Agreement") to form OvaXon, LLC ("OvaXon"), a joint venture to create new applications for improving human and animal health. Both the Company and OvaScience made an initial capital contribution of $1,500 in January 2014 for a 50% membership interest in OvaXon. OvaXon is governed by the OvaXon board of managers ("OvaXon Board") which has four members, two each from the Company and OvaScience. In cases in which the OvaXon Board determines that additional capital contributions are necessary in order for OvaXon to conduct business and comply with its obligations, each of the Company and OvaScience has the right, but not the obligation, to make additional capital contributions to OvaXon subject to the OvaXon LLC Agreement. Through December 31, 2017, both the Company and OvaScience have made subsequent capital contributions of $4,350.
The Company's investment in OvaXon was $146 and $65 as of December 31, 2017 and 2016, respectively, and is included in investments in affiliates in the accompanying consolidated balance sheets. See additional discussion in Note 22.
Intrexon Energy Partners
In March 2014, the Company and certain investors (the "IEP Investors"), including an affiliate of Third Security, LLC ("Third Security"),a related party, entered into a Limited Liability Company Agreement whichthat governs the affairs and conduct of business of Intrexon Energy Partners, LLC ("Intrexon Energy Partners"), a joint ventureJV formed to optimize and scale-up the Company's methane bioconversion platform ("MBP") technology for the production of certain fuels and lubricants. The Company also entered into

an ECC with Intrexon Energy Partners providing exclusive rights to the Company's technology for the use in bioconversion for the production of certain fuels and lubricants, as a result of which the Company received a technology access fee of $25,000 while retaining a 50% membership interest in Intrexon Energy Partners. The IEP Investors made initial capital contributions, totaling $25,000 in the aggregate, in exchange for pro rata membership interests in Intrexon Energy Partners totaling 50%. In addition, IntrexonPrecigen has committed to make capital contributions of up to $25,000, and the IEP Investors, as a group and pro rata in accordance with their respective membership interests in Intrexon Energy Partners, have committed to make additional capital contributions of up to $25,000, at the request of Intrexon Energy Partners' board of managers (the "Intrexon Energy Partners Board") and subject to certain limitations. As of December 31, 2017,2019, the Company's remaining commitment was $6,011.$4,225. Intrexon Energy Partners is governed by the Intrexon Energy Partners Board, which has five5 members. TwoNaN members of the Intrexon Energy Partners Board are designated by the Company and three3 members are designated by a majority of the IEP Investors. The Company and the IEP Investors have the right, but not the obligation, to make additional capital contributions above the initial limits when and if solicited by the Intrexon Energy Partners Board.
The Company's investment in Intrexon Energy Partners was $(444)$(423) and $(477)$(656) as of December 31, 20172019 and 2016,2018, respectively, and is included in other accrued liabilities in the accompanying consolidated balance sheets.sheets, which represents the Company's equity in losses for contractually committed contributions to Intrexon Energy Partners.
Intrexon Energy Partners II
In December 2015, the Company and certain investors (the "IEPII Investors"), including Harvest, entered into a Limited Liability Company Agreement whichthat governs the affairs and conduct of business of Intrexon Energy Partners II, LLC ("Intrexon Energy Partners II"), a joint ventureJV formed to utilize the Company's MBPmethane bioconversion platform technology for the production of 1,4-butanediol, an industrial chemical used to manufacture spandex, polyurethane, plastics, and polyester. The Company also entered into an ECC with Intrexon Energy Partners II whichthat provides exclusive rights to the Company's technology for use in the field, as a result of which the Company received a technology access fee of $18,000 while retaining a 50% membership interest in Intrexon Energy Partners II. The IEPII Investors made initial capital contributions, totaling $18,000 in the aggregate, in exchange for pro rata membership interests in Intrexon Energy Partners II totaling 50%. In December 2015, the owners of Intrexon Energy Partners II made a capital contribution of $4,000, half of which was paid by the Company. IntrexonPrecigen has committed to make additional capital contributions of up to $10,000, and the IEPII Investors, as a group and pro rata in accordance with their respective membership interests in Intrexon Energy Partners II, have committed to make additional capital contributions of up to $10,000, at the request of Intrexon Energy Partners II's board of managers (the "Intrexon Energy Partners II Board") and subject to certain limitations. As of December 31, 2019, the Company's remaining commitment was $10,000. Intrexon Energy Partners II is governed by the Intrexon Energy Partners II Board, which has five5 members. OneNaN member of the Intrexon Energy Partners II Board is designated by the Company and four4 members are designated by a majority of the IEPII Investors. The Company and the IEPII Investors have the right, but not the obligation, to make additional capital contributions above the initial limits when and if solicited by the Intrexon Energy Partners II Board.
The Company's investment in Intrexon Energy Partners II was $572$(435) and $1,414$(50) as of December 31, 20172019 and 2016,2018, respectively, and is included in investments in affiliatesother accrued liabilities in the accompanying consolidated balance sheets.
EnviroFlight
In February 2016, the Company entered into a series of transactions involving EnviroFlight, LLC ("Old EnviroFlight"), Darling Ingredients Inc. ("Darling") and a newly formed venture between the Company and Darling ("New EnviroFlight"). The Company determined that the series of integrated transactions to acquire substantially all of the assets of Old EnviroFlight for cash, common stock, and contingent consideration should be accounted for as a single transaction,sheets, which constituted a business, and considered New EnviroFlight to be the accounting acquirer. Consideration paid to Old EnviroFlight was $4,244 in cash, 136,340 shares ofrepresents the Company's common stock valued at $4,401 and contingent consideration estimated at $3,660. Contemporaneously, all the assets acquired from Old EnviroFlight, with the exception of certain developed technology, and $3,000 of cash were contributed to New EnviroFlightequity in exchangelosses for a non-controlling, 50% membership interest in New EnviroFlight. The Company'scontractually committed contributions to New EnviroFlight included an exclusive license to the developed technology that was retained by the Company. Darling received the remaining 50% membership interest in New EnviroFlight as consideration for terminating rights previously held in the developed technology with Old EnviroFlight. New EnviroFlight was formed to generate high-nutrition, low environmental impact animal and fish feed, as well as fertilizer products, from black soldier fly larvae. The Company and Darling as members have each agreed to make additional capital contributions of up to $5,000 to fund ongoing operations of New EnviroFlight. As of December 31, 2017, the Company's remaining commitment was $250, which was satisfied in January 2018. All of the employees of Old EnviroFlight became employees of New EnviroFlight.
The Company determined that its investment in New EnviroFlight should be accounted for using the equity method of accounting. The Company recorded an estimated fair value of $5,425 for its investment in New EnviroFlight and $9,880 for the

retained developed technology intangible asset. The developed technology is being amortized over a period of twenty-one years. The contingent consideration liability payable to the members of Old EnviroFlight is considered a freestanding financial instrument and is recorded at fair value each reporting period. New EnviroFlight met a regulatory milestone, as defined in the asset purchase agreement, and the members of Old EnviroFlight received a portion of the contingent consideration consisting of 59,337 shares of the Company's common stock valued at $1,583 in October 2016. The members of Old EnviroFlight may receive up to $4,000 of additional shares of the Company's common stock if certain commercial milestones are met prior to February 2019. Based upon management's assessment of the likelihood of New EnviroFlight achieving the commercial milestones, the Company wrote-off the remaining balance of its estimated liability during the year ended December 31, 2017 (Note 8).
The Company's investment in New EnviroFlight was $7,092 and $4,189 as of December 31, 2017 and 2016, respectively, and is included in investments in affiliates in the accompanying consolidated balance sheets.Intrexon Energy Partners II.
Intrexon T1D Partners
In March 2016, the Company and certain investors (the "T1D Investors"), including affiliates of Third Security, entered into a Limited Liability Company Agreement whichthat governs the affairs and conduct of business of Intrexon T1D Partners, LLC ("Intrexon T1D Partners"), a joint ventureJV formed to utilize the Company's proprietary ActoBiotics platform to develop and commercialize products to treat type 1 diabetes. The Company also entered into an ECC with Intrexon T1D Partners which providesthat provided the exclusive rights to the Company's technology for use in the field, as a result of which the Company received a technology access fee of $10,000 while retaining a 50% membership interest in Intrexon T1D Partners. The T1D Investors made initial capital contributions, totaling $10,000 in the aggregate, in exchange for pro rata membership interests in Intrexon T1D Partners totaling 50%. Intrexon hasPrecigen committed to make capital contributions of up to $5,000, and the T1D Investors, as a group and pro rata in accordance with their respective membership interests in Intrexon T1D Partners, have committed to make

additional capital contributions of up to $5,000, at the request of Intrexon T1D Partners' board of managers, (the "Intrexon T1D Partners Board") and subject to certain limitations. Aswhich consisted of December 31, 2017, the Company's remaining commitment was $2,900. Intrexon T1D Partners is governed by the Intrexon T1D Partners Board, which has five members. Two2 members of the Intrexon T1D Partners Board are designatedappointed by the Company and three3 members are designatedappointed by a majority of the T1D Investors. The Company andsatisfied its commitment in 2018.
In November 2018, the Company, together with its wholly owned subsidiary ActoBio, issued 1,933,737 shares of Precigen common stock valued at $18,970 to the T1D Investors have the right, but not the obligation, to make additional capital contributions above these limits when and if solicited by theacquire their ownership interest in Intrexon T1D Partners Board.
The Company's investmentPartners. Following the transaction, the Company owns 100% of the membership interests in Intrexon T1D Partners, was $(943) and $806 as of December 31, 2017 and 2016, respectively, and is included in other accrued liabilities and investments in affiliates, respectively,including the rights that had been previously licensed to Intrexon T1D Partners by the Company in the accompanying consolidated balance sheets.ECC. Intrexon T1D Partners did not meet the definition of a business, and accordingly, the transaction was accounted for as an asset acquisition. By reacquiring the rights previously licensed to Intrexon T1D Partners, the Company was relieved from its obligations under the original ECC and therefore wrote off $8,517 of deferred revenue in November 2018 as part of the transaction. The remaining value of $10,453 was considered in-process research and development related to the reacquired rights under the ECC and expensed immediately.
5.6. Collaboration and Licensing Revenue
The Company's collaborations and licensing agreements provide for multiple deliverablespromises to be deliveredsatisfied by the Company and typically include a license to the Company's technology platforms, participation in collaboration committees, and performance of certain research and development services and may include obligations for certain manufacturing services. The Company typically groups these deliverables into two units of accounting basedBased on the nature of the deliverables and the separation criteria. The first deliverable ("Unit of Accounting 1") includes the license topromises in the Company's technology platform, the Company's participation on the collaboration committees and any research and development services associated with its technology platforms. The deliverables for Unit of Accounting 1 are combined because they cannot be individually separated. If applicable, the second deliverable ("Unit of Accounting 2") includes manufacturing services to be provided for any Company materials in an approved product. These services have standalone value and are contingent due to uncertainties on whether an approved product will ever be developed thereby requiring manufacture bylicensing agreements, the Company at that time. Alltypically combines most of its promises into a single performance obligation because the promises are highly interrelated and not individually distinct. Options to acquire additional services are considered to determine if they constitute material rights. At contract inception, the transaction price is typically the upfront considerationpayment received and is allocated to Unitthe performance obligations. The Company has determined the transaction price should be recognized as revenue based on its measure of Accounting 1. Unit of Accountingprogress under the agreement primarily based on inputs necessary to fulfill the performance obligation.
See Note 2 is determined to be a contingent deliverable at the inception of the collaboration due to the uncertainties surrounding whether an approved product will ever be developed and require manufacturing by the Company. The upfront consideration allocated to Unit of Accounting 1 is recognized over the expected lifefor additional discussion of the Company's technology platform using a straight-line approach which approximates the period the Company expects to complete its performance obligations.
The Company recognizes the reimbursement payments received for research and development services in the period when the services are performed and collection is reasonably assured. At the inception of each collaboration, the Company determines whether any milestone payments are substantive and can be recognized when earned. The milestone payments are typically not considered substantive. Royaltiesrevenue recognition policy related to product sales will be recognized when earned since payments relate directly to products that have been fully developedcollaboration and for which the Company has satisfied all of its obligations.

licensing payments.
The Company determines whether collaborations and licensing agreements are individually significant for disclosure based on a number of factors, including total revenue recorded by the Company pursuant to collaboration and licensing agreements, collaborators or licensees with either majority-owned subsidiaries or equity method investments, or other qualitative factors. Collaboration and licensing revenues generated from consolidated subsidiaries are eliminated in consolidation. Amounts for periods subsequent to January 1, 2018 reflect revenue recognition under ASC 606.
The following tables summarizetable summarizes the amounts recorded as revenue from continuing operations in the consolidated statements of operations for each significant counterparty to a collaboration or licensing agreement for the years ended December 31, 2017, 20162019, 2018 and 2015.2017.
 Year Ended December 31,
 2019 2018 2017
ZIOPHARM Oncology, Inc.$2,171
 $16,298
 $69,812
Ares Trading S.A.
 11,175
 10,738
Oragenics, Inc.(564) 1,353
 1,469
Intrexon T1D Partners, LLC
 2,502
 5,968
Intrexon Energy Partners, LLC2,596
 6,929
 10,665
Intrexon Energy Partners II, LLC1,217
 2,998
 3,672
Fibrocell Science, Inc.3,713
 1,394
 7,344
OvaXon, LLC
 
 1,966
S & I Ophthalmic, LLC
 
 755
Harvest start-up entities (1)4,862
 14,447
 15,232
Other64
 12,444
 7,003
Total$14,059
 $69,540
 $134,624
 Year Ended December 31, 2017
 Revenue Recognized From Total
 Upfront and Milestone Payments Research and Development Services 
ZIOPHARM Oncology, Inc.$48,313
 $21,499
 $69,812
Oragenics, Inc.1,047
 973
 2,020
Fibrocell Science, Inc.2,419
 4,925
 7,344
Genopaver, LLC273
 6,417
 6,690
S & I Ophthalmic, LLC
 755
 755
OvaXon, LLC
 1,966
 1,966
Intrexon Energy Partners, LLC2,500
 8,165
 10,665
Persea Bio, LLC500
 446
 946
Ares Trading S.A.6,389
 4,349
 10,738
Intrexon Energy Partners II, LLC2,000
 1,672
 3,672
Intrexon T1D Partners, LLC1,109
 4,859
 5,968
Harvest start-up entities (1)2,442
 12,790
 15,232
Other4,645
 5,126
 9,771
Total$71,637
 $73,942
 $145,579

(1)For the yearyears ended December 31, 2019, 2018, and 2017, revenue recognized from collaborations with Harvest start-up entities include Thrive Agrobiotics, Inc.; Exotech Bio, Inc.; Relieve Genetics, Inc.; AD Skincare, Inc.; Genten Therapeutics,and Thrive Agrobiotics, Inc.; and CRS Bio, Inc.

 Year Ended December 31, 2016
 Revenue Recognized From Total
 Upfront and Milestone Payments Research and Development Services 
ZIOPHARM Oncology, Inc.$11,529
 $22,307
 $33,836
Oragenics, Inc.1,047
 1,705
 2,752
Fibrocell Science, Inc.2,419
 3,523
 5,942
Genopaver, LLC273
 5,844
 6,117
S & I Ophthalmic, LLC
 6,141
 6,141
OvaXon, LLC
 2,934
 2,934
Intrexon Energy Partners, LLC2,500
 15,052
 17,552
Persea Bio, LLC500
 778
 1,278
Ares Trading S.A.6,389
 3,803
 10,192
Intrexon Energy Partners II, LLC2,000
 1,169
 3,169
Intrexon T1D Partners, LLC821
 1,087
 1,908
Harvest start-up entities (1)1,383
 3,591
 4,974
Other5,572
 7,504
 13,076
Total$34,433
 $75,438
 $109,871
(1)For the yearyears ended December 31, 2016,2018 and 2017, revenue recognized from collaborations with Harvest start-up entities also include Thrive Agrobiotics, Inc.; Exotech Bio, Inc.; Relieve Genetics, Inc.; AD Skincare, Inc.; Genten Therapeutics Inc.; and CRS Bio, Inc.

 Year Ended December 31, 2015
 Revenue Recognized From Total
 Upfront and Milestone Payments Research and Development Services 
ZIOPHARM Oncology, Inc.$2,855
 $16,451
 $19,306
Oragenics, Inc.5,679
 856
 6,535
Fibrocell Science, Inc.6,046
 6,133
 12,179
Genopaver, LLC273
 3,556
 3,829
S & I Ophthalmic, LLC
 4,115
 4,115
OvaXon, LLC
 2,540
 2,540
Intrexon Energy Partners, LLC2,500
 10,947
 13,447
Persea Bio, LLC500
 741
 1,241
Ares Trading S.A.3,933
 795
 4,728
Intrexon Energy Partners II, LLC167
 
 167
Harvest start-up entities (1)46
 220
 266
Other10,514
 8,954
 19,468
Total$32,513
 $55,308
 $87,821
and CRS Bio. For the year ended December 31, 2017, revenue recognized from collaborations with Harvest start-up entities also include Relieve Genetics.
(1)For the year ended December 31, 2015, revenue recognized from collaborations with Harvest start-up entities include Thrive Agrobiotics, Inc.
The following is a summary of the terms of the Company's significant collaborations and licensing agreements.agreements from continuing operations.
ZIOPHARM Collaborations
In January 2011, the Company entered into an ECC with ZIOPHARM Oncology, Inc. ("ZIOPHARM"), a related party.party at the time. Pursuant to the ECC, ZIOPHARM received a license to the Company's technology platform within the field of oncology as defined more specifically in the

agreement. Upon execution of the ECC, the Company received 3,636,926 shares of ZIOPHARM's common stock valued at $17,457 as upfront consideration. In addition to the deliverablespromises discussed above, the Company transferred two clinical product candidates to ZIOPHARM that resulted in a separate unit of accounting for which $1,115 of the upfront consideration was allocated and recognized as collaboration revenue in 2011. The remaining $16,342 of upfront consideration was allocated to Unit of Accounting 1a single performance obligation as discussed above. The Company was entitled to additional shares of common stock representing the lesser of (i) the original shares received or (ii) the number of shares representing 7.495% of ZIOPHARM's outstanding shares at the date of the dosing of the first patient in a Phase II clinical trial of a product candidate created, produced or developed by ZIOPHARM using the Company's technology ("ZIOPHARM Milestone"). In October 2012, the ZIOPHARM Milestone was achieved and the Company received 3,636,926 shares of ZIOPHARM's common stock valued at $18,330 as milestone consideration. SinceUpon adoption of ASC 606, the ZIOPHARM Milestone was not substantive, theCompany recorded a cumulative catch-up adjustment of $873 related to milestone consideration. The Company allocated the ZIOPHARM Milestone to the applicable units of accountingtwo performance obligations and is recognizing itrecognized those in a manner similar to these units of accounting.the discussion above. The Company receivesreceived reimbursement payments for research and development services provided and manufacturing services for Company materials provided to ZIOPHARM during the ECC. Subject to certain expense allocations, ZIOPHARM will pay the Company a percentage of the quarterly net profits derived from the sale of products developed from the ECC, as defined and amended in the agreement.
ZIOPHARM is responsible for conducting preclinical and clinical development of product candidates, as well as for other aspects of commercialization or manufacturing of product candidates. The term of the ECC commenced in January 2011 and continues until terminated pursuant to the ECC agreement. The ECC may be terminated by either party in the event of certain material breaches defined in the agreement and may be terminated voluntarily by ZIOPHARM upon 90 days written notice to the Company. In March 2015, in conjunction with the worldwide License and Collaboration Agreement ("Merck Agreement") with Ares Trading S.A. ("Ares Trading"), a wholly owned subsidiary of the biopharmaceutical business of Merck KGaA, and ZIOPHARM discussed below, the Company and ZIOPHARM amended their existing ECC. The amendment modifiesmodified the scope of the ECC in connection with the Merck Agreement and providesprovided that the Company willwould pay to ZIOPHARM 50% of all payments received for upfront fees, milestones and royalties under the Merck Agreement. See discussion of the Merck Agreement below.
In September 2015, the Company entered into its second ECC with ZIOPHARM ("ZIOPHARM ECC 2"). Pursuant to the ECC, ZIOPHARM received a license to the Company's technology platform to develop and commercialize novel biotherapeutics for the treatment of patients with graft-versus-host disease, or GvHD.disease. Upon execution of ZIOPHARM ECC 2, the Company received a technology access fee of $10,000. The Company received reimbursement payments for research and development services provided pursuant to the agreement during the ECC and manufacturing services for Company materials provided to ZIOPHARM during the ECC. In December 2017, the Company and ZIOPHARM mutually agreed to terminate ZIOPHARM ECC2 and accordingly, the Company recognized the remaining balance of the deferred revenue associated with ZIOPHARM ECC2 totaling $28,943.
In June 2016, the Company amended each of its two existing collaboration agreements with ZIOPHARM and as a result the rate of the royalty whichthat the Company is entitled to receive on certain products commercialized pursuant to the agreements was reduced from 50% to 20%. As consideration for execution of the amendments, ZIOPHARM issued the Company 100,000 shares of ZIOPHARM's Series 1 Preferred Stock valued at $120,000. The Company allocated the consideration received to each ECC based on the cumulative value of upfront and milestone payments previously received pursuant to that ECC. BecauseUpon adoption of ASC 606, the Company has remaining performance obligations under eachrecognized a cumulative catch-up adjustment of the ZIOPHARM ECCs, the Company recorded the initial fair value received as deferred revenue and recognizes this amount straight-line over the remaining performance period for each ZIOPHARM ECC. No other financially significant terms of the ZIOPHARM ECCs were changed$32,422 as a result of the amendments.contract modification requiring a cumulative catch-up under ASC 606 versus prospective recognition under previous revenue recognition accounting standards. See Note 718 for additional discussion of the terms of the preferred stock and the accounting treatment.
In October 2018, the Company, through its wholly owned subsidiary PGEN Therapeutics, entered into alicense agreement (the "ZIOPHARM License Agreement") with ZIOPHARM, which terminated and replaced the terms of the original ZIOPHARM ECC, including the amendments thereto.  Pursuant to the terms of the ZIOPHARM License Agreement, the Company granted ZIOPHARM an exclusive, worldwide, royalty-bearing, sub-licensable license to research, develop and commercialize (i) products utilizing the Company's RheoSwitch gene switch ("RTS") to express IL-12 (the "IL-12 Products") for the treatment of cancer, (ii) chimeric antigen receptor ("CAR") products directed to (a) CD19 for the treatment of cancer (the "CD19 Products"), and (b) a second target, subject to the rights of the Company to pursue such target under the Merck Agreement, and (iii) T-cell receptor ("TCR") products (the "TCR Products") designed for neoantigens for the treatment of cancer or the treatment and prevention of human papilloma virus ("HPV") to the extent that the primary reason for such treatment or prevention is to prevent cancer, which is referred to as the HPV Field. The Company has also granted ZIOPHARM an exclusive, worldwide, royalty-bearing, sub-licensable license for certain patents relating to the Company's Sleeping Beauty technology to research, develop and commercialize TCR Products for both neoantigens and shared antigens for the treatment of

cancer and in the HPV Field. ZIOPHARM will be solely responsible for all aspects of the research, development and commercialization of the exclusively licensed products for the treatment of cancer. ZIOPHARM is required to use commercially reasonable efforts to develop and commercialize IL-12 Products and CD19 Products, and after a two-year period, the TCR Products. The Company also granted ZIOPHARM an exclusive, worldwide, royalty-bearing, sub-licensable license to research, develop and commercialize products utilizing an additional construct that expresses RTS IL-12 (the "Gorilla IL-12 Products") for the treatment of cancer and in the HPV Field. ZIOPHARM is responsible for all development costs associated with each of the licensed products, other than Gorilla IL-12 Products. ZIOPHARM and the Company will share the development costs and operating profits for Gorilla IL-12 Products, with ZIOPHARM responsible for 80% of the development costs and receiving 80% of the operating profits, as defined in the ZIOPHARM License Agreement, and the Company responsible for the remaining 20% of the development costs and receiving 20% of the operating profits, except that ZIOPHARM will bear all development costs and the Company will share equally in operating profits for Gorilla IL-12 Products in the HPV Field (the "Gorilla Program").
In consideration of the licenses and other rights granted by the Company, ZIOPHARM will pay the Company an annual license fee of $100 and agreed to reimburse the Company $1,000, paid in 4 quarterly installments, with respect to historical Gorilla IL-12 Products (the "historical Gorilla reimbursements"). ZIOPHARM will make milestone payments, payable upon the initiation of later stage clinical trials and upon the approval of exclusively licensed products in various jurisdictions, totaling up to an additional $52,500 for each of 4 exclusively licensed products, up to an aggregate of $210,000. In addition, ZIOPHARM will pay the Company tiered royalties ranging from low-single digits to high-single digits on the net sales derived from the sales of any approved IL-12 Products and CAR products. ZIOPHARM will also pay the Company royalties ranging from low-single digits to mid-single digits on the net sales derived from the sales of any approved TCR Products, up to maximum royalty amount of $100,000 in the aggregate. ZIOPHARM will also pay the Company 20% of any sublicensing income received by ZIOPHARM relating to the licensed products.
The Company reacquired rights to research, develop and commercialize CAR products for all other targets. In addition, the Company may research, develop and commercialize products for the treatment of cancer, outside of the products exclusively licensed to ZIOPHARM.  The Company will pay ZIOPHARM royalties ranging from low-single digits to mid-single digits on the net sales derived from the sale of the Company's CAR products, up to $50,000. The Company also received from ZIOPHARM reimbursement of costs incurred to transition the necessary knowledge and materials for ZIOPHARM programs for a period of one year from the effective date (the "Transition Services").
As between the parties, the Company agreed to perform all of the obligations of ZIOPHARM under the Merck Agreement, other than an obligation of exclusivity thereunder and ZIOPHARM will remain responsible for all payments owed under the Merck Agreementwith respect to CD19 and the other target under the Merck Agreement as a result of ZIOPHARM's, its affiliates' or its sublicensees' exploitation of CAR products. Further, the Company is entitled to receive all rights and financial considerations with respect to all other CAR products, subject to the CAR royalties due to ZIOPHARM for such products. The ZIOPHARM License Agreement will terminate on a product-by-product and/or country-by-country basis upon the expiration of the later to occur of (i) the expiration of the last to expire patent claim for a licensed product, or (ii) 12 years after the first commercial sale of a licensed product in such country. In addition, ZIOPHARM may terminate the ZIOPHARM License Agreement on a country-by-country or program-by-program basis following written notice to the Company, and either party may terminate the ZIOPHARM License Agreement following notice of a material breach.
Pursuant to the ZIOPHARM License Agreement, the 2016 Securities Issuance Agreement between the Company and ZIOPHARM was terminated as of the effective date of the ZIOPHARM License Agreement, all of the benefits, rights, obligations and liabilities thereunder immediately ceased and terminated and the Company returned to ZIOPHARM all of the preferred stock owned by the Company as of the Effective Date, which was valued at $158,376. See Note 18 for additional discussion of the preferred stock.
Prior to the execution of the ZIOPHARM License Agreement, the Company had $51,084 of deferred revenue remaining from the original ECC, which was related to the Company's obligations to perform under that agreement. Replacement of the original ECC with the ZIOPHARM License Agreement is a contract modification under ASC 606 that represents the termination of the original agreement and the creation of a new agreement as the remaining rights, obligations, and services to be exchanged, which are limited to the Transition Services, are distinct from those under the ECC. Therefore, the Company reviewed the various forms of consideration in the ZIOPHARM License Agreement to determine the transaction price. As the Company's obligations under the ZIOPHARM License Agreement are only related to the Transition Services and no other obligations under the ECC remain, a portion of the previously deferred revenue from the ECC should be relieved, which the Company determined to be $49,329, and the remaining $1,755 was included in the transaction price. The initial annual license payment of $100 was also included in the transaction price. The remaining annual license payments and potential milestone payments were constrained at the modification date and will only be recognized when the payments become probable of being

received. Royalty payments from sales of ZIOPHARM products developed pursuant to the ZIOPHARM License Agreement will be recognized when the sales occur. The Company recognized payments from Transition Services as those services were performed and recognized the transaction price of $1,855 as it performed the Transition Services required under the ZIOPHARM License Agreement.
The Company also reviewed the consideration paid and potential consideration to be paid to ZIOPHARM as part of the ZIOPHARM License Agreement, which includes the $158,376 of ZIOPHARM preferred stock returned by the Company and potential royalty payments to ZIOPHARM from sales of the Company's CAR products. The Company determined the exchange of its investment in ZIOPHARM preferred stock for certain CAR rights previously licensed under the ECC (i.e., in-process research and development) and the relief of performance obligations to ZIOPHARM under the ECC constituted an exchange for distinct goods and services. Therefore, the Company wrote off the $49,329 of relieved deferred revenue and recorded an expense of $109,047 for the reacquired in-process research and development. Potential royalty payments to ZIOPHARM will be expensed as incurred as they relate to distinct goods or services.
The Company determined that the Gorilla Program represents a separate collaboration agreement under the scope of ASC 808, Collaborative Arrangements, ("ASC 808") and will not be included in the accounting for the ZIOPHARM License Agreement under ASC 606. The Company recognized $500 of the historical Gorilla reimbursements on the contract modification date and recognized the remaining amounts when receipt became probable. The development costs and operating profits from the Gorilla Program will be recognized in accordance with ASC 808.
Merck Licensing Agreement
In March 2015, the Company signed the Merck Agreement with Ares Trading and ZIOPHARM through which the parties established a collaboration for the research and development and commercialization of certain products for the prophylactic, therapeutic, palliative or diagnostic use for cancer in humans. Pursuant to the Merck Agreement, the Company received a technology access fee of $115,000 as upfront consideration, of which $57,500 was paid to ZIOPHARM in accordance with the terms of the agreement. Upon the selection of the first 2 targets by Ares Trading, the Company received $10,000 in equal quarterly installments over two years.
In December 2018, the Company entered into a Securities Purchase, Assignment and Assumption Agreement (the "Merck Purchase Agreement") with Ares Trading pursuant to which the Company reacquired Ares Trading's development and commercialization rights under the Merck Agreement. As consideration for the reacquisition of the Merck Agreement, the Company issued Ares Trading 20,640,119 shares of Precigen common stock valued at $140,353 and agreed to pay Ares Trading a royalty of 10% of the net sales derived from two CAR products specified in the Merck Purchase Agreement. By reacquiring the rights previously licensed to Ares Trading, the Company is relieved of its obligations under the Merck Agreement and therefore wrote off deferred revenue of $31,826. The remaining value acquired of $108,527 was considered in-process research and development related to the reacquired rights under the Merck Agreement and expensed immediately. The potential future royalty payments to Ares Trading do not represent consideration paid to a customer and will be recorded when the payments are probable. See Note 12 for additional discussion of this transaction.
Oragenics Collaborations
In June 2012, the Company entered into an ECC with Oragenics, a publicly traded company focused on becoming the world leader in novel antibiotics against infectious diseases and a related party. Pursuant to the ECC, at the transaction effective date, Oragenics received a license to the Company's technology platform within the field of lantibiotics for the treatment of infectious diseases in humans and companion animals as defined more specifically in the agreement. Upon execution of the ECC, the Company received a technology access fee of 439,243 shares of Oragenics' common stock valued at $6,588 as upfront consideration. In November 2017, the Company amended the ECC agreement with Oragenics, and as a result, the Company is entitled to up to $35,000 of potential one-time payments for certain regulatory milestones. The Company receives reimbursement payments for research and development services provided pursuant to the agreement during the ECC and manufacturing services for Company materials provided to Oragenics during the ECC. Oragenics will pay the Company 25% of the quarterly profits derived from the sale of products developed from the ECC, as defined in the agreement.

Oragenics is responsible for funding the further development of lantibiotics toward the goal of commercialization, conducting preclinical and clinical development of product candidates, as well as for other aspects of commercialization or manufacturing of the product candidates. The term of the ECC commenced in June 2012 and continues until terminated pursuant to the ECC agreement. The ECC may be terminated by either party in the event of certain material breaches defined in the agreement and may be terminated voluntarily by Oragenics upon 90 days written notice to the Company.
In September 2013, the Company entered into its second ECC with Oragenics ("Oragenics ECC 2"). Pursuant to Oragenics ECC 2, at the transaction effective date, Oragenics received a license to the Company's technology platform to develop and commercialize probiotics, specifically the direct administration to humans of genetically modified probiotics for the treatment of diseases of the oral cavity, throat, sinus and esophagus as defined more specifically in the agreement. Upon execution of Oragenics ECC 2, the Company received a technology access fee of 134,800 shares of Oragenics' common stock valued at $3,503 and a $1,956 convertible promissory note maturing on or before December 31, 2013 as upfront consideration. Prior to the maturity date, Oragenics had the right to convert the promissory note into shares of Oragenics' common stock subject to its shareholders' approval. The conversion price was equal to the closing price of Oragenics' common stock on the last trading day immediately prior to the date of conversion. In December 2013, Oragenics converted the promissory note into 69,824 shares of Oragenics' common stock. In September 2015, Oragenics and the Company mutually agreed to terminate Oragenics ECC 2 and accordingly, the Company recognized the remaining balance of the deferred revenue associated with the upfront payment.
In June 2015, the Company entered into its thirdan ECC with Oragenics ("Oragenics ECC 3").Oragenics. Pursuant to Oragenicsthe ECC, 3, at the transaction effective date, Oragenics received a license to the Company's technology platform within the field of biotherapeutics for use in certain treatments of oral mucositis and other diseases and conditions of the oral cavity, throat, and esophagus. Upon execution of Oragenicsthe ECC, 3, the Company received a technology access fee of a $5,000 convertible promissory note maturing on or before December 31, 2015 as upfront consideration. Prior to the maturity date, Oragenics had the right to convert the promissory note into shares of Oragenics' common stock, subject to its shareholders' approval. In December 2015, Oragenics converted the promissory note into 338,100 shares of Oragenics' common stock. TheThese shares were sold in the TS Biotechnology Sale (Note 3). Following an amendment in November 2017, the Company is also entitled to up to $22,000$37,500 of potential one-time payments for development and commercial milestones for each Oragenics product developed from Oragenics ECC 3 and up to $10,000 of potential one-time payments for certain regulatory milestones under Oragenics ECC 3.the ECC. The Company receives reimbursement payments for research and development services provided pursuant to the agreement during the ECC and manufacturing services for Company materials provided to Oragenics during Oragenics ECC 3.the ECC. Oragenics will pay the Company royalties as a percentage in the low-teens of net sales derived from the sale of products developed from Oragenicsthe ECC, 3, as defined in the agreement. In November 2017, the Company amended the Oragenics ECC 3 agreement, and as a result, the Company is entitled to an additional $5,500 of potential payments for development and commercial milestones for each Oragenics product developed from Oragenics ECC 3.
Oragenics is responsible for funding the further development of Oragenicsproducts under the ECC 3 products towards the goal of commercialization, conducting preclinical and clinical development of product candidates, as well as for other aspects of commercialization or manufacturing of the product candidates. The term of Oragenicsthe ECC 3 commenced in June 2015 and may be

terminated by either party in the event of certain material breaches defined in the agreement and may be terminated voluntarily by Oragenics upon 90 days written notice to the Company.
All Oragenics share data noted above reflect a 1-for-10 reverse stock split of Oragenics' common stock effective January 19, 2018.
Fibrocell Science CollaborationsIntrexon T1D Partners Collaboration
In October 2012,March 2016, the Company entered into an ECC ("Fibrocell ECC 1") with Fibrocell Science, Inc. ("Fibrocell"),Intrexon T1D Partners, a publicly traded cellJV between the Company and gene therapy company focused on diseases affecting the skin and connective tissuecertain investors and a related party. Pursuant to the ECC, at the transaction effective date, FibrocellIntrexon T1D Partners received aan exclusive license to the Company's technology platform to develop and commercialize genetically modified and non-genetically modified autologous fibroblasts and autologous dermal cells in the United States of America. Upon execution of the ECC, the Company received a technology access fee of 439,173 shares of Fibrocell's common stock valued at $7,576 as upfront consideration. The Company receives reimbursement payments for research and development services provided pursuant to the agreement during the ECC and manufacturing services for Company materials provided to Fibrocell during the ECC. On a quarterly basis, Fibrocell will pay the Company royalties of 7% of net sales up to $25,000 and 14% of net sales above $25,000 on each product developed from the ECC, as defined in the agreement. If Fibrocell uses the Company's technology platform to improve the production of a current or new Fibrocell product not developed from the ECC, Fibrocell will pay the Company quarterly royalties equal to 33% of the cost of goods sold savings generated by the improvement, as defined in the agreement.

Fibrocell is responsible for conducting preclinical and clinical development of product candidates associated with Fibrocell ECC 1, as well as for other aspects of commercialization and manufacturing of the product candidates. The term of the ECC commenced in October 2012 and continues until terminated pursuant to the ECC agreement. The ECC may be terminated by either party in the event of certain material breaches defined in the agreement and may be terminated voluntarily by Fibrocell upon 90 days written notice to the Company.
In June 2013, the Company and Fibrocell entered into an amendment to the Fibrocell ECC 1. The amendment expanded the field of use defined in the ECC agreement. Under the terms of the amendment to the Fibrocell ECC 1, the Company received 414,594 shares of Fibrocell's common stock valued at $7,612 as a supplemental technology access fee. The Company allocated this additional consideration to the appropriate unit of accounting and is recognizing it consistent with the unit of accounting.
In January 2014, the Company and Fibrocell entered into a second amendment to the Fibrocell ECC 1. The second amendment further expanded the field of use defined in the ECC agreement. Under the terms of the second amendment to the Fibrocell ECC 1, the Company received 341,530 shares of Fibrocell's common stock valued at $5,225 as a supplemental technology access fee. The Company allocated this additional consideration to the appropriate unit of accounting. In September 2015, Fibrocell and the Company mutually agreed to terminate the second amendment to the ECC and accordingly, the Company recognized the remaining balance of deferred revenue associated with the related upfront payment.
In December 2015, the Company entered into a second ECC with Fibrocell ("Fibrocell ECC 2"). Pursuant to the ECC, at the transaction effective date, Fibrocell received a license to the Company's technology platform to develop and commercialize genetically-modified fibroblastsproducts to treat chronic inflammatory and degenerative diseases of the joint, including arthritis and related conditions.type 1 diabetes. Upon execution of the ECC, the Company received a technology access fee of $10,000. The Company is also entitled to (i) up to $30,000received reimbursement of potential one-time payments for certain development and regulatory milestones for the first product developed under Fibrocell ECC 2, (ii) up to $30,000 of potential payments for certain regulatory milestones for each additional product developed under Fibrocell ECC 2, and (iii) up to $22,500 of potential payments for certain sales milestones for each product developed under Fibrocell ECC 2. The Company receives reimbursement payments for research and development services provided pursuant to the agreement duringECC agreement. In November 2018, the Company completed an asset acquisition with the T1D Investors, resulting in the Company owning 100% of the membership interest of Intrexon T1D Partners including all rights under the ECC and manufacturing services for Company materials provided to Fibrocell during the ECC. Fibrocell will pay the Company royalties as a percentage in the low double-digits of net sales derived from the sale of products developed from Fibrocell ECC 2, as defined in the agreement.(Note 5).
Fibrocell is responsible for conducting preclinical and clinical development of product candidates associated with Fibrocell ECC 2, as well as for other aspects of commercialization and manufacturing of the product candidates. The term of the ECC commenced in December 2015 and continues until terminated pursuant to the ECC agreement. The ECC may be terminated by either party in the event of certain material breaches defined in the agreement and may be terminated voluntarily by Fibrocell upon 90 days written notice to the Company.
All Fibrocell share data noted above reflect a 1-for-3 reverse stock split of Fibrocell's common stock effective March 10, 2017.
GenopaverGenten Therapeutics Collaboration
In March 2013,September 2016, the Company entered into an ECC with Genopaver, LLC ("Genopaver"),Genten Therapeutics, an affiliate of Third SecurityHarvest and a related party. GenopaverGenten Therapeutics was formed for the purpose of entering into the ECC and developing and commercializing products using the Company's technology for expression of gluten peptides, alone or in the field of the fermentative production of alkaloids through genetically modified cell-lines and substrate feedscombination with immunomodulatory cytokines, to reestablish immune tolerance for use as active pharmaceutical ingredients or as commercially sold intermediates in the manufacture of active pharmaceutical ingredients.patients with celiac disease. Upon execution of the ECC, the Company received a technology access fee in the form of a $1,500 cash payment and equity in Genten Therapeutics valued at $3,000 as upfront consideration. The Company receivesreceived reimbursement payments for research and development services provided pursuant to the agreement during the ECC. Genopaver will payIn September 2018, the Company royalties as a percentagecompleted an asset acquisition with Harvest, resulting in the lower-double digits onCompany owning 100% of the quarterly gross profitsequity interests of product sales from products developedGenten Therapeutics including all rights under the ECC as defined in the agreement. Genopaver is responsible for the development and commercialization of the product candidates. The term of the ECC commenced in March 2013 and continues until terminated pursuant to the ECC agreement. The ECC may be terminated by either party in the event of certain material breaches defined in the agreement and may be terminated voluntarily by Genopaver upon 90 days written notice to the Company.(Note 4).
AquaBountyCRS Bio Collaboration
In February 2013,September 2016, the Company entered into an ECC with AquaBounty,CRS Bio, an affiliate of Harvest and a majority-owned consolidated subsidiary.related party. CRS Bio was formed for the purpose of entering into the ECC and developing and commercializing products through targeted delivery of antibodies for treatment of chronic rhinosinusitis with and without nasal polyps, by utilizing the Company's technology to block inflammatory mediators in the nasal passage, leading to improved breathing and, importantly, patients' quality of life. Upon execution of the ECC, the Company received a technology access fee in the form of equity in CRS Bio valued at $2,100. The Company will be reimbursedreceived reimbursement payments for research and development services as provided forpursuant to the ECC. In September 2018, the Company completed an asset acquisition with Harvest, resulting in the ECC agreement. InCompany owning 100% of the eventequity interests of product sales from a product developed fromCRS Bio including all rights under the ECC the Company will receive 16.66% of quarterly gross profits for each product, as defined in the agreement. All revenues and expenses related to this ECC are eliminated in consolidation.(Note 4).

S & I OphthalmicRelieve Genetics Collaboration
In September 2013,March 2016, the Company entered into an ECC with S & I Ophthalmic, a joint venture between the Company and Sun Pharmaceutical Subsidiary,Relieve Genetics, an indirect subsidiaryaffiliate of Sun Pharmaceutical, an international specialty pharmaceutical company focused on chronic diseases,Harvest and a related party. TheRelieve Genetics was formed for the purpose of entering into the ECC granted S & I Ophthalmic an exclusive license to the Company's technology platform to develop and commercialize therapies in humansdeveloping and commercializing products using a viral vector expressing interleukin-10 for the treatment of ocular diseases defined more specificallychronic neuropathic pain resultant from cancer in humans. Upon execution of the ECC, the Company received a technology access fee in the agreement.form of equity in Relieve Genetics valued at $4,333 as upfront consideration. The Company was reimbursedreceived reimbursement payments for research and development services provided pursuant to the agreement and manufacturing services forECC. In September 2018, the Company materials provided to S & I Ophthalmic duringcompleted an asset acquisition with Harvest, resulting in the ECC. The termCompany owning 100% of the ECC commenced in September 2013. In December 2017, the Company and Sun Pharmaceutical Subsidiary mutually agreed to terminateequity interests of Relieve Genetics including all rights under the ECC and dissolve the joint venture.(Note 4).
OvaXon Collaboration
In December 2013, the Company entered into an ECC with OvaXon, a joint venture between the Company and OvaScience, a life sciences company focused on infertility treatments, and a related party. The ECC grants OvaXon an exclusive license to the Company's technology platform to create new applications for improving human and animal health. OvaScience also licensed certain technology to OvaXon pursuant to a separate license agreement. The Company will be reimbursed for research and development services and manufacturing services as provided for in the ECC agreement. The term of the ECC commenced in December 2013 and continues until terminated by either party in the event of certain material breaches defined in the agreement and may be terminated voluntarily by OvaXon upon 90 days written notice to the Company. See additional discussion in Note 22.
Intrexon Energy Partners Collaboration
In March 2014, the Company entered into an ECC with Intrexon Energy Partners, a joint ventureJV between the Company and certain investors and a related party. The ECC grants Intrexon Energy Partners an exclusive license to the Company's technology platform to optimize and scale-up the Company's methane bioconversion platform for the production of certain fuels and lubricants. Upon execution of the ECC, the Company received a technology access fee of $25,000 as upfront consideration. The Company will be reimbursedreceives reimbursement payments for research and development services as provided for in the ECC agreement. The term of the ECC commenced in March 2014 and continues until March 2034 unless terminated prior to that date by either party in the event of certain material breaches defined in the agreement and may be terminated voluntarily by Intrexon Energy Partners upon 90 days written notice to the Company.
Persea Bio Collaboration
In December 2014, the Company entered into an ECC with Persea Bio, LLC ("Persea Bio"), an affiliate of Third Security and a related party. Persea Bio was formed for the purpose of entering into the ECC and developing and commercializing a food program, as defined in the agreement. Upon effectiveness of the ECC, the Company received a technology access fee of $5,000 as upfront consideration. The Company receives reimbursement payments for research and development services provided pursuant to the agreement during the ECC. Persea Bio will pay the Company royalties as a percentage in the lower-double digits on the quarterly gross profits of product sales from products derived from the ECC, as defined in the agreement. Persea Bio is responsible for the development and commercialization of the product candidates. The term of the ECC commenced in December 2014 and continues until terminated by either party in the event of certain material breaches defined in the agreement and may be terminated voluntarily by Persea Bio upon 90 days written notice to the Company.
Merck Licensing Agreement
In March 2015, the Company signed the Merck Agreement with Ares Trading and ZIOPHARM through which the parties established a collaboration for the research and development and commercialization of certain products for the prophylactic, therapeutic, palliative or diagnostic use for cancer in humans. Pursuant to the Merck Agreement, the Company received a technology access fee of $115,000 as upfront consideration, of which $57,500 was paid to ZIOPHARM in accordance with the terms of the agreement. Upon the selection of the first two targets by Ares Trading, the Company received $10,000 in equal quarterly installments over two years. The Company is entitled to receive a further $5,000 for each additional target selected by Ares Trading. The Company is also entitled to up to $413,000 of potential payments for substantive and non-substantive development and commercial milestones for each product, and royalties ranging from the lower-single digits to the low-teens of the net sales derived from the sale of products developed under the Merck Agreement. The Company may also receive up to $50,000 of further cash fees upon certain technical milestones as provided for in the agreement. The term of the Merck Agreement commenced in May 2015 and may be terminated by either party in the event of a material breach as defined in the

agreement and may be terminated voluntarily by Ares Trading upon 90 days written notice to the Company. The Company will pay to ZIOPHARM 50% of all payments received for upfront fees, milestones, and royalties under the Merck Agreement.
Thrive Agrobiotics Collaboration
In September 2015, the Company entered into an ECC with Thrive Agrobiotics, Inc. ("Thrive Agrobiotics"), an affiliate of Harvest and a related party. Thrive Agrobiotics was formed for the purpose of entering into the ECC and developing and commercializing products to improve the overall growth and feed efficiency in piglets. Upon execution of the ECC, the Company received a technology access fee in the form of equity in Thrive Agrobiotics valued at $1,667 as upfront consideration. The Company is also entitled to up to $5,500 of potential payments for development and commercial milestones for each product developed under the ECC. The Company receives reimbursement payments for research and development services provided pursuant to the agreement during the ECC. Thrive Agrobiotics will pay the Company royalties as a percentage in the lower-double digits on the quarterly gross profits of product sales from products developed under the ECC, as defined in the agreement. Thrive Agrobiotics is responsible for the development and commercialization of the product candidates. The term of the ECC commenced in September 2015 and continues until terminated pursuant to the ECC agreement. The ECC may be terminated by either party in the event of certain material breaches defined in the agreement and may be terminated voluntarily by Thrive Agrobiotics upon 90 days written notice to the Company.
Intrexon Energy Partners II Collaboration
In December 2015, the Company entered into an ECC with Intrexon Energy Partners II, a joint ventureJV between the Company and certain investors and a related party. Pursuant to the ECC, Intrexon Energy Partners II received an exclusive license to the Company's technology platform to optimize and scale-up the Company's methane bioconversion platform for the production of 1,4-butanediol (BDO), a key chemical intermediate that is used to manufacture spandex, polyurethane, plastics, and polyester. Upon execution of the ECC, the Company received a technology access fee of $18,000 and is entitled to reimbursement of research and development services as provided for in the ECC agreement. The term of the ECC commenced in December 2015 and continues until December 2035; termination prior to that date may be initiated (i) by either party in the event of certain material breaches defined in the agreement or (ii) may be terminated voluntarily by Intrexon Energy Partners II upon 90 days written notice to the Company.
Exotech Bio Collaboration
In March 2016, the Company entered into an ECC with Exotech Bio, Inc. ("Exotech Bio"), an affiliate of Harvest and a related party. Exotech Bio was formed for the purpose of entering into the ECC and developing and commercializing products using exosomes carrying a RNA payload designed to kill, suppress, or render immune-visible a cancer cell. Upon execution of the ECC, the Company received a technology access fee in the form of equity in Exotech Bio valued at $5,000 as upfront consideration. In June 2018, the Company and Exotech Bio amended the ECC, which resulted in the expansion of the defined field of use and the Company's ownership in Exotech Bio increasing to 49%. The amendment also eliminated potential future milestone payments and royalties for which the Company is also entitled to up to $52,500 of potential payments for substantive and non-substantive development and commercial milestones for each product developed under the ECC.was previously entitled. The Company receives reimbursement payments for research and development services provided pursuant to the ECC. Exotech Bio will pay the Company royalties as a percentage in the lower double-digits on the quarterly net sales of products developed under the ECC, as defined in the agreement. Exotech Bio is responsible for the development and commercialization of the product candidates. The term of the ECC commenced in March 2016 and continues until terminated pursuant to the ECC agreement. The ECC may be terminated by either party in the event of certain material breaches defined in the agreement and may be terminated voluntarily by Exotech Bio upon 90 days written notice to the Company.
Relieve Genetics Collaboration
In March 2016, the Company entered into an ECC with Relieve Genetics, Inc. ("Relieve Genetics"), an affiliate of Harvest and a related party. Relieve Genetics was formed for the purpose of entering into the ECC and developing and commercializing products using a viral vector expressing interleukin-10 for the treatment of chronic neuropathic pain resultant from cancer in humans. Upon execution of the ECC, the Company received a technology access fee in the form of equity in Relieve Genetics valued at $4,333 as upfront consideration. The Company is also entitled to up to $52,500 of potential payments for substantive and non-substantive development and commercial milestones for each product developed under the ECC. The Company receives reimbursement payments for research and development services provided pursuant to the ECC. Relieve Genetics will pay the Company royalties as a percentage in the lower double-digits on the quarterly net sales of products developed under the ECC, as defined in the agreement. Relieve Genetics is responsible for the development and commercialization of the product candidates. The term of the ECC commenced in March 2016 and continues until terminated pursuant to the ECC agreement. The ECC may be terminated by either party in the event of certain material breaches defined in the agreement and may be terminated voluntarily by Relieve Genetics upon 90 days written notice to the Company.

Intrexon T1D Partners Collaboration
In March 2016, the Company entered into an ECC with Intrexon T1D Partners, a joint venture between the Company and certain investors and a related party. Pursuant to the ECC, Intrexon T1D Partners received an exclusive license to the Company's technology platform to develop and commercialize products to treat type 1 diabetes. Upon execution of the ECC, the Company received a technology access fee of $10,000 and is entitled to reimbursement of research and development services as provided for in the ECC agreement. The term of the ECC commenced in March 2016 and continues until March 2036; termination prior to that date may be initiated (i) by either party in the event of certain material breaches defined in the agreement or (ii) may be terminated Intrexon T1D Partners upon 90 days written notice to the Company.
AD Skincare Collaboration
In June 2016, the Company entered into an ECC with AD Skincare, Inc. ("AD Skincare"), an affiliate of Harvest and a related party. AD Skincare was formed for the purpose of entering into the ECC and developing an advanced topical delivery system to improve the efficacy of biologically active ingredients aimed at improving signs of aging human skin. Upon execution of the ECC, the Company received a technology access fee in the form of equity in AD Skincare valued at $4,333 as upfront consideration. The Company is also entitled to up to $2,000 of potential payments for substantive and non-substantive development milestones for each product developed under the ECC, as well as up to $17,000 in one-time commercial milestones. The Company receives reimbursement payments for research and development services provided pursuant to the ECC. AD Skincare will pay the Company royalties as a percentage in the low double-digits on the quarterly net sales of products developed under the ECC, as defined in the agreement. AD Skincare is responsible for the development and commercialization of the product candidates. The term of the ECC commenced in June 2016 and continues until terminated pursuant to the ECC agreement. The ECC may be terminated by either party in the event of certain material breaches defined in the agreement and may be terminated voluntarily by AD Skincare upon 90 days written notice to the Company.
Genten Therapeutics CollaborationFibrocell Science Collaborations
In September 2016,October 2012, the Company entered into an ECC ("Fibrocell ECC 1") with Genten Therapeutics,Fibrocell Science, Inc. ("Genten Therapeutics"Fibrocell"), an affiliate of Harvesta then publicly traded cell and gene therapy company focused on diseases affecting the skin and connective tissue and a related party. Genten Therapeutics was formed forparty until the purposeacquisition of entering intoFibrocell by a third party as discussed below. Pursuant to Fibrocell ECC 1, at the ECC and developing and commercializing products usingtransaction effective date, Fibrocell received a license to the Company's technology for expressionplatform to develop and commercialize genetically modified and non-genetically modified autologous fibroblasts and autologous dermal cells in the United States of gluten peptides, alone or in combination with immunomodulatory cytokines, to reestablish immune tolerance for patients with celiac disease.America. Upon execution of theFibrocell ECC 1, the Company received a technology access fee in the form of a $1,500 cash payment and equity in Genten Therapeutics87,835 shares of Fibrocell's common stock valued at $3,000$7,576 as upfront consideration. The Company is entitled to receive additional equity interests in Genten Therapeutics upon the first instance of the achievement of a certain non-substantive development milestone. The Company is also entitled to up to $82,000 of potential payments for substantive and non-substantive development and commercial milestones for each product developed under the ECC. The Company receives reimbursement payments for research and development services provided pursuant to the ECC. Genten Therapeuticsagreement during Fibrocell ECC 1 and manufacturing services for Company materials provided to Fibrocell during Fibrocell ECC 1. On a quarterly basis, Fibrocell will pay the Company royalties as a percentage in the lower double-digits on the quarterlyof 7% of net sales up to $25,000 and 14% of productsnet sales above $25,000 on each product developed under thefrom Fibrocell ECC 1, as defined in the agreement. Genten TherapeuticsIf Fibrocell uses the Company's technology platform to improve the production of a current or new Fibrocell product not developed from Fibrocell ECC 1, Fibrocell will pay the Company quarterly royalties equal to 33% of the cost of goods sold savings generated by the improvement, as defined in the agreement.
Fibrocell is responsible for theconducting preclinical and clinical development of product candidates associated with Fibrocell ECC 1, as well as for other aspects of commercialization and commercializationmanufacturing of the product candidates. The term of the ECC commenced in September 2016October 2012 and continues until terminated pursuant to the ECC agreement. The ECC may be terminated by

either party in the event of certain material breaches defined in the agreement and may be terminated voluntarily by Fibrocell upon 90 days written notice to the Company.
In June 2013, the Company and Fibrocell entered into an amendment to the Fibrocell ECC 1. The amendment expanded the field of use defined in the ECC agreement. Under the terms of the amendment to the Fibrocell ECC 1, the Company received 82,919 shares of Fibrocell's common stock valued at $7,612 as a supplemental technology access fee.
In April 2019, Fibrocell entered into a collaboration agreement with a Castle Creek Pharmaceuticals, LLC to develop and commercialize a product in the field of the Fibrocell ECC 1. Pursuant to the terms of the Fibrocell ECC 1, the Company is entitled to 50% of sublicensing fees and accordingly, received $3,750 during the year ended December 31, 2019.
In December 2015, the Company entered into a second ECC with Fibrocell ("Fibrocell ECC 2"). Pursuant to the ECC, at the transaction effective date, Fibrocell received a license to the Company's technology platform to develop and commercialize genetically-modified fibroblasts to treat chronic inflammatory and degenerative diseases of the joint, including arthritis and related conditions. Upon execution of the ECC, the Company received a technology access fee of $10,000. The Company is also entitled to (i) up to $30,000 of potential one-time payments for certain development and regulatory milestones for the first product developed under Fibrocell ECC 2, (ii) up to $30,000 of potential payments for certain regulatory milestones for each additional product developed under Fibrocell ECC 2, and (iii) up to $22,500 of potential payments for certain sales milestones for each product developed under Fibrocell ECC 2. The Company receives reimbursement payments for research and development services provided pursuant to the agreement during the ECC and manufacturing services for Company materials provided to Fibrocell during the ECC. Fibrocell will pay the Company royalties as a percentage in the low double-digits of net sales derived from the sale of products developed from Fibrocell ECC 2, as defined in the agreement.
Fibrocell is responsible for conducting preclinical and clinical development of product candidates associated with Fibrocell ECC 2, as well as for other aspects of commercialization and manufacturing of the product candidates. The term of the ECC commenced in December 2015 and continues until terminated pursuant to the ECC agreement. The ECC may be terminated by either party in the event of certain material breaches defined in the agreement and may be terminated voluntarily by Genten TherapeuticsFibrocell upon 90 days written notice to the Company.
CRS BioIn December 2019, Fibrocell was acquired by Castle Creek Pharmaceutical Holdings, Inc. ("Castle Creek"), a privately held company focused on developing medicine for rare genetic disorders. See Note 18 for further discussion of the impact of the Castle Creek acquisition on the Company's investments in Fibrocell.
Thrive Agrobiotics Collaboration
In September 2016,2015, the Company entered into an ECC with CRS Bio,Thrive Agrobiotics, Inc. ("CRS Bio"Thrive Agrobiotics"), an affiliate of Harvest and a related party. CRS BioThrive Agrobiotics was formed for the purpose of entering into the ECC and developing and commercializing products through targeted delivery of antibodies for treatment of chronic rhinosinusitis withto improve the overall growth and without nasal polyps, by utilizing the Company's technology to block inflammatory mediatorsfeed efficiency in the nasal passage, leading to improved breathing and, importantly, patients' quality of life.piglets. Upon execution of the ECC, the Company received a technology access fee in the form of equity in CRS BioThrive Agrobiotics valued at $2,100. The Company is entitled to receive additional equity interests in CRS Bio upon the first instance of the achievement of a certain non-substantive development milestone.$1,667 as upfront consideration. The Company is also entitled to up to $75,000$5,500 of potential payments for substantive and non-substantive development and commercial milestones for each product developed under the ECC. The Company receives reimbursement payments for research and development services provided pursuant to the agreement during the ECC. CRS BioThrive Agrobiotics will pay the Company royalties as a percentage in the lower double-digitslower-double digits on the quarterly netgross profits of product sales offrom products developed under the ECC, as defined in the agreement. CRS BioThrive Agrobiotics is responsible for the development and commercialization of the product candidates. The term of the ECC commenced in September 20162015 and continues until terminated pursuant to the ECC agreement. The ECC may be terminated by either party in the event of certain material breaches defined in the agreement and may be terminated voluntarily by CRS BioThrive Agrobiotics upon 90 days written notice to the Company.

Deferred Revenue
Deferred revenue primarily consists of consideration received for upfront and milestone payments in connection with the Company's collaborationscollaboration and licensing agreements, prepayments for research and development services performed for collaborators and licensees, and prepayments for product and service revenues.agreements. Deferred revenue from continuing operations consists of the following:
 December 31,
 2019 2018
Collaboration and licensing agreements$50,593
 $54,323
Prepaid product and service revenues2,805
 2,933
Other435
 560
Total$53,833
 $57,816
Current portion of deferred revenue$5,697
 $11,088
Long-term portion of deferred revenue48,136
 46,728
Total$53,833
 $57,816
 December 31,
 2017 2016
Upfront and milestone payments$230,531
 $297,867
Prepaid research and development services1,052
 6,015
Prepaid product and service revenues4,681
 5,554
Other133
 706
Total$236,397
 $310,142
Current portion of deferred revenue$42,870
 $53,364
Long-term portion of deferred revenue193,527
 256,778
Total$236,397
 $310,142

The following table summarizes the remaining balance of deferred revenue from continuing operations associated with upfront and milestone payments for each significant counterparty to a collaboration or licensing agreement as of December 31, 2019 and licensing agreement.2018, including the estimated remaining performance period as of December 31, 2019.
 Average Remaining Performance Period (Years) December 31,
  2019 2018
ZIOPHARM Oncology, Inc.0.0 $
 $1,214
Oragenics, Inc.4.4 2,864
 1,785
Intrexon Energy Partners, LLC4.2 8,362
 10,267
Intrexon Energy Partners II, LLC4.9 12,843
 14,060
Fibrocell Science, Inc.4.9 17,697
 17,519
Harvest start-up entities (1)5.2 6,993
 7,644
Other2.8 1,834
 1,834
Total  $50,593
 $54,323
 December 31,
 2017 2016
ZIOPHARM Oncology, Inc.$90,496
 $138,809
Oragenics, Inc.6,719
 7,766
Fibrocell Science, Inc.16,607
 19,026
Genopaver, LLC1,704
 1,977
Intrexon Energy Partners, LLC15,625
 18,125
Persea Bio, LLC3,500
 4,000
Ares Trading S.A.40,789
 47,178
Intrexon Energy Partners II, LLC13,833
 15,833
Intrexon T1D Partners, LLC8,435
 8,653
Harvest start-up entities (1)18,400
 20,208
Other14,423
 16,292
Total$230,531
 $297,867

(1)As of December 31, 20172019 and December 31, 2016,2018, the balance of deferred revenue for collaborations with Harvest start-up entities includes Thrive Agrobiotics, Inc.; Exotech Bio, Inc.; Relieve Genetics, Inc.; AD Skincare, Inc.; Genten Therapeutics, Inc.; and CRS Bio, Inc.Thrive Agrobiotics.
6.7. Short-term and Long-term Investments
The Company's investments are classified as available-for-sale. The following table summarizes the amortized cost, gross unrealized gains and losses, and fair value of available-for-sale investments as of December 31, 2017:2019:
 
Amortized
Cost
 
Gross
Unrealized
Gains
 
Gross
Unrealized
Losses
 
Aggregate
Fair Value
United States government debt securities$8,989
 $7
 $
 $8,996
Certificates of deposit264
 
 
 264
Total$9,253
 $7
 $
 $9,260
 
Amortized
Cost
 
Gross
Unrealized
Gains
 
Gross
Unrealized
Losses
 
Aggregate
Fair Value
U.S. government debt securities$6,000
 $
 $(2) $5,998
Certificates of deposit275
 
 
 275
Total$6,275
 $
 $(2) $6,273


The following table summarizes the amortized cost, gross unrealized gains and losses, and fair value of available-for-sale investments as of December 31, 2016:2018:
 
Amortized
Cost
 
Gross
Unrealized
Gains
 
Gross
Unrealized
Losses
 
Aggregate
Fair Value
United States government debt securities$119,401
 $
 $(61) $119,340
Certificates of deposit274
 
 
 274
Total$119,675
 $
 $(61) $119,614

 
Amortized
Cost
 
Gross
Unrealized
Gains
 
Gross
Unrealized
Losses
 
Aggregate
Fair Value
U.S. government debt securities$180,412
 $5
 $(94) $180,323
Certificates of deposit272
 
 
 272
Total$180,684
 $5
 $(94) $180,595
For more informationSee Notes 2 and 8 for further discussion on the Company's method for determining the fair value of its assets, see Note 2 – "Fair Value of Financial Instruments".assets.
As of December 31, 2017,2019, all of the available-for-sale investments were due within one year based on their contractual maturities.
Changes in market interest rates and bond yields cause certain investments to fall below their cost basis, resulting in unrealized losses on investments. The unrealized losses of the Company's investments as of December 31, 2018 were primarily a result of unfavorable changes in interest rates subsequent to the initial purchase of these investments, and are not significantthere were none as of December 31, 2017.2019.
As of December 31, 2017 and 2016,2018, the Company did not consider any of its debt security investments to be other-than-temporarily impaired. When evaluating its debt security investments for other-than-temporary impairment, the Company reviews factors such as the length of time and extent to which fair value has been below its cost basis, the financial condition of the issuer, the Company's ability and intent to hold the security and whether it is more likely than not that it will be required to sell the investment before recovery of its cost basis.
7. Investments in Preferred Stock
Investment in ZIOPHARM Preferred Stock
In June 2016, the Company received 100,000 shares of Series 1 Preferred Stock (the "Preferred Shares") of ZIOPHARM with a per share stated value of $1,200, as consideration for amending their two previously existing ECC agreements (Note 5). A summary of the terms of the Preferred Shares follows.
Conversion. The Preferred Shares shall automatically convert into shares of ZIOPHARM common stock upon the date the first approval in the United States of (i) a ZIOPHARM product, as defined in and developed under one of the ECC agreements, or (ii) a product, as defined and developed under the License and Collaboration Agreement with Ares Trading and ZIOPHARM, is publicly announced (the "Conversion Event Date"). The Preferred Shares shall convert into a number of shares of ZIOPHARM common stock equal to the stated value of such Preferred Share, divided by the greater of: (i) the volume weighted average closing price of ZIOPHARM's common stock over the twenty trading days ending on the Conversion Event Date or (ii) $1.00. The number of converted shares is subject to certain limitations defined in the amended and restated Certificate of Designation, Preferences, and Rights of Series 1 Preferred Stock (the "A&R Certificate of Designation").
Dividend Rights. The Company shall receive a monthly dividend, payable in additional Preferred Shares, equal to $12.00 per Preferred Share held per month divided by the stated value of the Preferred Shares, which is referred to as the PIK Dividend. For any Preferred Shares that are not converted on the Conversion Event Date, the rate of PIK Dividend on these unconverted Preferred Shares will automatically increase from $12.00 to $24.00 per Preferred Share per month.
Voting Rights. The Preferred Shares do not have any voting rights except for certain protective voting rights defined in the A&R Certificate of Designation.
Liquidation Rights. In the event of any voluntary or involuntary liquidation, dissolution or winding up of ZIOPHARM or a deemed liquidation event, as defined in the A&R Certificate of Designation, including a change of control or the sale, lease transfer, or exclusive license of all or substantially all of ZIOPHARM's assets, the holders of the Preferred Shares shall be entitled to receive a portion of all funds to be distributed in proportion to the holders' proportionate share of ZIOPHARM's common stock on an as-converted to common stock basis (the "Series 1 Liquidation Amount"). For purposes of calculating the Series 1 Liquidation Amount, if such liquidation event occurs prior to the Conversion Event Date, each Preferred Share shall be deemed to be convertible into the number of shares of ZIOPHARM's common stock equal to (i) the stated value of each

Preferred Share, divided by (ii) the volume weighted average price of ZIOPHARM's common stock for the twenty day period ending on the date of the public announcement of the liquidation event. In addition, ZIOPHARM may elect to redeem the Preferred Shares in connection with or following a deemed liquidation event at a price per share equal to the Series 1 Liquidation Amount.
The investment in ZIOPHARM preferred stock is categorized as Level 3 as there are significant unobservable inputs and the Preferred Shares are not traded on a public exchange. The fair value of the investment in ZIOPHARM preferred stock is estimated using a probability-weighted expected return ("PWERM") model. The key inputs used in the PWERM model are (i) estimating the future returns for conversion of the Preferred Shares for both product approval and a change in control of ZIOPHARM (the "conversion events") using market data of the change in value for guideline companies as a result of these conversion events; (ii) estimating the expected date and likelihood of each conversion event; and (iii) discounting these estimated future returns using a discount rate for the Preferred Shares considering industry debt issuances originated by public funds and venture capital rates of return. A significant change in unobservable inputs discussed above could result in a significant impact on the fair value of the Company's investment in ZIOPHARM preferred stock. The fair value of the Company's investment in ZIOPHARM preferred stock, including additional Preferred Shares received as dividends, was $160,832 and $129,545 as of December 31, 2017 and 2016, respectively. During the years ended December 31, 2017 and 2016, the Company received 13,460 shares and 6,184 shares, respectively, of additional Preferred Shares and recognized $16,717 and $7,421, respectively, of dividend income in the accompanying consolidated statements of operations.
Investment in Fibrocell Preferred Stock
In March 2017, Fibrocell sold Series A Convertible Preferred Stock (the "Convertible Preferred Shares") convertible into shares of Fibrocell common stock and warrants to purchase shares of Fibrocell common stock to certain institutional and accredited investors, including the Company and affiliates of Third Security. The Company paid $1,161 in exchange for 1,161 Convertible Preferred Shares and warrants to acquire 498,843 shares of Fibrocell common stock, reflective of the 1-for-3 reverse stock split of Fibrocell's common stock effective March 10, 2017. The Convertible Preferred Shares are convertible at any time at the election of the Company and accrue dividends at 4% per annum, compounded quarterly, increasing the stated value of the shares. The investment in Fibrocell preferred stock is categorized as Level 3 as there are significant unobservable inputs and the Convertible Preferred Shares are not traded on a public exchange. The fair value of the investment in Fibrocell preferred stock is estimated using a conversion plus dividend approach utilizing the trading value of the underlying common stock and an estimated premium for the preferred stock dividend and other preferences. Market price volatility of Fibrocell's common stock and a significant change in the estimated preferred stock premium could result in a significant impact to the fair value of the investment in Fibrocell preferred stock. As of December 31, 2017, the fair value of the Company's investment in Fibrocell preferred stock was $393. See Note 18 for additional discussion of the warrants.
Investment in Oragenics Preferred Stock
In November 2017, concurrent with Oragenics closing a preferred stock private placement, the Company exchanged a promissory note, including accrued interest, purchased from Oragenics in May 2017 and receivables due from Oragenics totaling $3,385 for Oragenics Series C preferred stock ("Series C Preferred Stock"). The Series C Preferred Stock is non-voting and non-convertible and is redeemable in whole or part at any time by Oragenics in cash. The Series C Preferred Stock accrues an annual 12% dividend payable in additional Series C Preferred Stock through May 10, 2019, and after such date, the annual dividend increases to 20%. Additionally, the Company and Oragenics amended certain future payment terms under its ECCs (Note 5). As of December 31, 2017, based on the most recent financial information available on Oragenics, the Company concluded that there was no value to its investment in Oragenics preferred stock.

Changes in the Fair Value of Investments in Preferred Stock
The following table summarizes the changes in the Level 3 investments in preferred stock during the years ended December 31, 2017 and 2016.
 2017 2016
Beginning balance$129,545
 $
Receipt of preferred stock as consideration for amendments to collaboration agreements
 120,000
Purchase of preferred stock766
 
Conversion of receivables to preferred stock3,385
 
Dividend income from investments in preferred stock16,756
 7,421
Net unrealized appreciation in the fair value of the investments in preferred stock10,773
 2,124
Ending balance$161,225
 $129,545
8. Fair Value Measurements
The carrying amount of cash and cash equivalents, restricted cash, receivables, prepaid expenses and other current assets, accounts payable, accrued compensation and benefits, other accrued liabilities, and related party payables approximate fair value due to the short maturity of these instruments.
Assets
The following table presents the placement in the fair value hierarchy of financial assets that are measured at fair value on a recurring basis, including the items for which the fair value option has been elected, as of December 31, 2017:2019:
Quoted Prices in Active Markets
(Level 1)
 
Significant Other Observable Inputs
(Level 2)
 
Significant Unobservable Inputs
(Level 3)
 December 31,
2017
Quoted Prices in Active Markets
(Level 1)
 
Significant Other Observable Inputs
(Level 2)
 
Significant Unobservable Inputs
(Level 3)
 December 31,
2019
Assets              
U.S. government debt securities$
 $5,998
 $
 $5,998
Equity securities10,537
 4,563
 
 15,100
Preferred stock
 
 161,225
 161,225
United States government debt securities$
 $8,996
 $
 $8,996
Other
 850
 
 850

 264
 
 264
Total$10,537
 $11,411
 $161,225
 $183,173
$
 $9,260
 $
 $9,260

The following table presents the placement in the fair value hierarchy of financial assets that are measured at fair value on a recurring basis, including the items for which the fair value option has been elected, as of December 31, 2016:2018:
 
Quoted Prices in Active Markets
(Level 1)
 
Significant Other Observable Inputs
(Level 2)
 
Significant Unobservable Inputs
(Level 3)
 December 31,
2018
Assets       
United States government debt securities$
 $119,340
 $
 $119,340
Equity securities950
 74
 
 1,024
Other
 394
 191
 585
Total$950
 $119,808
 $191
 $120,949
 
Quoted Prices in Active Markets
(Level 1)
 
Significant Other Observable Inputs
(Level 2)
 
Significant Unobservable Inputs
(Level 3)
 December 31,
2016
Assets       
U.S. government debt securities$
 $180,323
 $
 $180,323
Equity securities15,544
 7,978
 
 23,522
Preferred stock
 
 129,545
 129,545
Other
 1,917
 
 1,917
Total$15,544
 $190,218
 $129,545
 $335,307

The method used to estimate the fair value of the Level 1 assets in the tables above is based on observable market data as these equity securities are publicly-traded. The method used to estimate the fair value of the Level 2 short-term and long-termdebt investments in the tables above is based on professional pricing sources for identical or comparable instruments, rather than

direct observations of quoted prices in active markets. The methodmethods used to estimate the fair value of the Level 2 equity securities in the tables above isare based on the quoted market price of the publicly-traded security, adjusted for adjusted for a discount for lack of marketability. The methods used to estimateCompany owned preferred stock in certain of its collaborators, and these investments were classified as Level 3 within the fair value hierarchy. See Note 18 for additional discussion of these investments in preferred stock.
The following table summarizes the changes in the Level 3 assets are discussed in Note 7.investments during the years ended December 31, 2019 and 2018.
 2019 2018
Beginning balance$191
 $161,225
Retained interest in deconsolidated subsidiary14,239
 
Dividend income from investments in preferred stock48
 14,841
Net unrealized appreciation (depreciation) in the fair value of the investments in equity securities and preferred stock7,446
 (17,499)
Return of preferred stock
 (158,376)
Proceeds from sale of equity securities(21,587) 
Proceeds to be received from preferred stock(337) 
Ending balance$
 $191

There were no transfers of assets between levels of the fair value hierarchy during the year ended December 31, 2017.2019.
Liabilities
The carrying values of the Company's long termlong-term debt, excluding the Convertible Notes, approximates fair value due to the length of time to maturity and/or the existence of interest rates that approximate prevailing market rates.
The calculated fair value of the Convertible Notes (Note 12) was approximately $126,000 and $141,000 as of December 31, 2019 and 2018, respectively, and is based on the recent third-party trades of the instrument as of the balance sheet dates. The fair value of the Convertible Notes is classified as Level 2 within the fair value hierarchy as there is not an active market for the Convertible Notes, however, third-party trades of the instrument are considered observable inputs. The Convertible Notes are reflected on the accompanying consolidated balance sheets at amortized cost, which was $157,560 and $148,101 as of December 31, 2019 and 2018, respectively.
The Company's contingent consideration liabilities (Notes 3 and(Note 4) are measured on a recurring basis and were $585 and $2,081 as of December 31, 20172019 and 2016, respectively.2018. These fair value measurements were based on significant inputs not observable in the market and thus represented a Level 3 measurement. A significant change in unobservable inputs could result in a significant impact on the fair value of the Company's contingent consideration liabilities. The contingent consideration liabilities are remeasured to fair

value at each reporting date until the contingency iscontingencies are resolved, and those changes in fair value are recognized in earnings. TheThere were no changes in the fair value of the Level 3 liabilities during the years ended December 31, 20172019 and 2016 were as follows:
 2017 2016
Beginning balance$2,081
 $
Acquisition date fair value of contingent consideration liability585
 3,660
Payment of contingent consideration (Note 4)
 (1,583)
Change in fair value of contingent consideration recognized in selling, general and administrative expenses(2,081) 4
Ending balance$585
 $2,081
2018.
9. Inventory
Inventory from continuing operations consists of the following:
 December 31,
 2019 2018
Supplies, embryos and other production materials$2,282
 $3,857
Work in process3,702
 4,391
Livestock7,553
 10,167
Feed2,560
 2,160
Total inventory$16,097
 $20,575

 December 31,
 2017 2016
Supplies, embryos and other production materials$2,673
 $1,835
Work in process4,767
 5,466
Livestock11,040
 11,752
Feed2,013
 2,086
Total inventory$20,493
 $21,139

10. Property, Plant and Equipment, Net
Property, plant and equipment consist of the following:
 December 31,
 2019 2018
Land and land improvements$9,814
 $10,001
Buildings and building improvements11,765
 20,099
Furniture and fixtures1,315
 1,812
Equipment54,448
 63,947
Leasehold improvements12,821
 14,219
Breeding stock5,191
 4,582
Computer hardware and software9,434
 10,789
Construction and other assets in progress5,313
 10,497
 110,101
 135,946
Less: Accumulated depreciation and amortization(49,132) (49,050)
Property, plant and equipment, net$60,969
 $86,896

 December 31,
 2017 2016
Land and land improvements$11,767
 $10,904
Buildings and building improvements18,183
 8,123
Furniture and fixtures2,515
 2,176
Equipment65,863
 44,392
Leasehold improvements25,277
 15,105
Breeding stock3,832
 3,893
Computer hardware and software10,128
 6,844
Trees6,642
 2,772
Construction and other assets in progress14,113
 4,513
 158,320
 98,722
Less: Accumulated depreciation and amortization(45,646) (34,050)
Property, plant and equipment, net$112,674
 $64,672
The deconsolidation of AquaBounty (Note 1) in April 2019 resulted in the reduction of $24,186 of property, plant and equipment, net on the accompanying consolidated balance sheet during the year ended December 31, 2019.
During the year ended December 31, 2019, the Company recorded $448 of property, plant and equipment impairment losses in conjunction with the closing of 2 of its operating units during the third quarter of 2019.
Depreciation expense was $11,951, $9,387$11,869, $12,439 and $7,872$10,137 for the years ended December 31, 2019, 2018 and 2017, 2016 and 2015, respectively.
Included in the table above is $14,219 of land, buildings, and equipment related to a 2017 asset acquisition of a land-based aquaculture facility to be used in the production of AquAdvantage salmon in Indiana.
11. Goodwill and Intangible Assets, Net
The changes in the carrying amount of goodwill for the years ended December 31, 20172019 and 2016,2018, are as follows:
 2019 2018
Beginning of year$93,627
 $93,751
Impairment(29,820) 
Foreign currency translation adjustments(53) (124)
End of year$63,754
 $93,627

 2017 2016
Beginning balance$157,175
 $165,169
Acquisitions4,850
 
Impairment(13,823) 
Foreign currency translation adjustments5,087
 (7,994)
Ending balance$153,289
 $157,175
The Company had $43,643 and $13,823 of cumulative impairment losses as of December 31, 2019 and 2018, respectively.

For the year ended December 31, 2017,2019, the Company recorded a $13,823$29,820 of goodwill impairment charge, which primarily relates to AquaBounty.charges. During the Company's annual goodwill impairment test, the Company determined based on the price per share received by AquaBounty in its recent underwritten public offering (Note 22), it was more-likely-than-not that the fair value of the AquaBountyTrans Ova reporting unit was less than its carrying amount. As a result, the Company compared the carrying amount of the AquaBountyTrans Ova reporting unit to the fair value and determined the carrying amount exceeded the fair value resulting in a $13,001$29,642 goodwill impairment charge for the excess carrying value. TheAdditionally, the Company did not recognize anyrecorded $178 of goodwill impairment charges duringin conjunction with the years ended December 31, 2016 or 2015, and there were no accumulated impairment charges asclosing of December 31, 2016.2 of its reporting units in the third quarter of 2019.

See Note 20 for information regarding goodwill by reportable segment.
Intangible assets consist of the following as of December 31, 2017:2019:
 Weighted Average Useful Life (Years) Gross Carrying Amount Accumulated Amortization Net
Patents, developed technologies and know-how15.8 $90,659
 $(26,619) $64,040
Customer relationships6.5 10,700
 (8,440) 2,260
Trademarks8.4 5,900
 (3,854) 2,046
Total  $107,259
 $(38,913) $68,346

 Weighted Average Useful Life (Years) Gross Carrying Amount Accumulated Amortization Net
Patents, developed technologies and know-how15.9 $263,615
 $(44,954) $218,661
Customer relationships6.5 10,700
 (6,383) 4,317
Trademarks9.3 6,800
 (2,567) 4,233
In-process research and development  5,666
 
 5,666
Total  $286,781
 $(53,904) $232,877
Intangible assets consist of the following as of December 31, 2016:2018:
 Gross Carrying Amount Accumulated Amortization Net
Patents, developed technologies and know-how$106,042
 $(23,674) $82,368
Customer relationships10,700
 (7,565) 3,135
Trademarks6,800
 (3,341) 3,459
Total$123,542
 $(34,580) $88,962

 Gross Carrying Amount Accumulated Amortization Net
Patents, developed technologies and know-how$236,401
 $(29,748) $206,653
Customer relationships10,700
 (4,672) 6,028
Trademarks6,800
 (1,792) 5,008
Covenant not to compete370
 (339) 31
In-process research and development7,895
 
 7,895
Total$262,166
 $(36,551) $225,615
In the fourth quarter of 2018, the Company recorded a $16,027 loss related to the abandonment of certain developed technologies that the Company ceased using in the fourth quarter of 2018. The balance of in-processCompany does not expect to use these technologies as a defensive asset or market them for sale in the future. Because these technologies were used in combination with other technologies, the identifiable cash flows did not result in an impairment; however, because the Company made a decision to abandon the assets, it recorded the charge to research and development includes certain in-process research and development technology acquiredexpense.
The deconsolidation of AquaBounty (Note 1) in April 2019 resulted in the Company's acquisitionreduction of Oxitec in September 2015,$11,567 of net intangible assets, primarily related to patents, developed technologies, and amortization will begin once certain regulatory approvals have been obtained forknow-how, on the in-process programs. In 2017,accompanying consolidated balance sheet during the Company decided to forgo further development for certain of its in-process research and development assets and, as a result, recorded an impairment charge of $2,950.year ended December 31, 2019.
Amortization expense was $19,194, $15,185$7,920, $11,666 and $9,871$11,472 for the years ended December 31, 2017, 20162019, 2018 and 2015,2017, respectively. Estimated aggregate amortization expense for definite lived intangible assets is expected to be as follows:
2020$7,501
20217,313
20226,518
20235,350
20245,066
Thereafter36,598
Total$68,346

2018$19,258
201918,935
202018,833
202118,645
202217,646
Thereafter133,894
Total$227,211

12. Lines of Credit and Long TermLong-Term Debt
Lines of Credit
Trans Ova has a $5,000 revolving line of credit with First National Bank of Omaha whichthat matures on MayApril 1, 2018.2020. The line of credit bears interest at the greater of 2.95% above the London Interbank Offered Rate or 3.00%, and the actual rate was 4.32%4.76% as of December 31, 2017.2019. As of December 31, 2017,2019, there was noan outstanding balance.balance of $1,695. The amount available under the line of credit is based on eligible accounts receivable and inventory up to the maximum principal amount.amount, and was $3,235 as of December 31, 2019. The line of credit is collateralized by certain of Trans Ova's assets and contains certain restricted covenants that include maintaining minimum tangible net worth and working capital and maximum allowable annual capital expenditures. Trans Ova was in compliance with these covenants as of December 31, 2017.

2019.
Exemplar has a $700 revolving line of credit with American State Bank whichthat matures on October 30, 2018.31, 2020. The line of credit bears interest at 5.25%5.50% per annum. As of December 31, 2017,2019, there was an outstanding balance of $233.$227.
Long TermLong-Term Debt
Long termLong-term debt consists of the following:
 December 31,
 2019 2018
Convertible debt$213,771
 $203,391
Notes payable4,089
 4,551
Other131
 3,753
Long-term debt217,991
 211,695
Less current portion31,670
 479
Long-term debt, less current portion$186,321
 $211,216

 December 31,
 2017 2016
Notes payable$5,010
 $5,453
Royalty-based financing2,132
 1,896
Other895
 599
Long term debt8,037
 7,948
Less current portion502
 386
Long term debt, less current portion$7,535
 $7,562
The deconsolidation of AquaBounty (Note 1) in April 2019 resulted in the reduction of $4,030 of long-term debt on the accompanying consolidated balance sheet during the year ended December 31, 2019.
Convertible Debt
Precigen Convertible Notes
In July 2018, Precigen completed a registered underwritten public offering of $200,000 aggregate principal amount of Convertible Notes and issued the Convertible Notes under an indenture (the "Base Indenture") between Precigen and The Bank of New York Mellon Trust Company, N.A., as trustee, as supplemented by the First Supplemental Indenture (together with the Base Indenture, the "Indenture"). Precigen received net proceeds of $193,958 after deducting underwriting discounts and offering expenses of $6,042.
The Convertible Notes are senior unsecured obligations of Precigen and bear interest at a rate of 3.50% per year, payable semiannually in arrears on January 1 and July 1 of each year beginning on January 1, 2019. The Convertible Notes mature on July 1, 2023, unless earlier repurchased or converted. The Convertible Notes are convertible into cash, shares of Precigen's common stock or a combination of cash and shares, at Precigen's election. The initial conversion rate of the Convertible Notes is 58.6622 shares of Precigen common stock per $1,000 principal amount of Convertible Notes (equivalent to an initial conversion price of approximately $17.05 per share of common stock). The conversion rate is subject to adjustment upon the occurrence of certain events, but will not be adjusted for any accrued and unpaid interest. In addition, following certain corporate events that occur prior to the maturity date as defined in the Indenture, Precigen will increase the conversion rate for a holder who elects to convert its Convertible Notes in connection with such a corporate event in certain circumstances. Prior to April 1, 2023, the holders may convert the Convertible Notes at their option only upon the satisfaction of the following circumstances:
During any calendar quarter commencing after the calendar quarter ended on September 30, 2018, if the last reported sales price of Precigen's common stock for at least 20 trading days (whether or not consecutive) during the last 30 consecutive trading days of the immediately preceding calendar quarter is greater than or equal to 130% of the conversion price on each applicable trading day;

During the 5 business day period after any 5 consecutive trading day period in which the trading price, as defined in the Indenture, for the Convertible Notes is less than 98% of the product of the last reported sales price of Precigen's common stock and the conversion rate for the Convertible Notes on each such trading day; or
Upon the occurrence of specified corporate events as defined in the Indenture.
None of the above events allowing for conversion prior to April 1, 2023 occurred during the year ended December 31, 2019. On or after April 1, 2023 until June 30, 2023, holders may convert their Convertible Notes at any time. Precigen may not redeem the Convertible Notes prior to the maturity date.
If Precigen undergoes a fundamental change, as defined in the Indenture, holders of the Convertible Notes may require Precigen to repurchase for cash all or any portion of their Convertible Notes at a fundamental change repurchase price equal to 100% of the principal amount of the Convertible Notes to be repurchased, plus accrued and unpaid interest to, but excluding, the fundamental change repurchase date. The Indenture contains customary events of default, as defined in the agreement, and, if any of the events occur, could require repayment of a portion or all of the Convertible Notes, including accrued and unpaid interest. Additionally, the Indenture provides that Precigen shall not consolidate with or merge with or into, or sell, convey, transfer or lease all or substantially all of its properties and assets to, another entity, unless (i) the surviving entity is organized under the laws of the United States and such entity expressly assumes all of Precigen's obligations under the Convertible Notes and the Indenture; and (ii) immediately after such transaction, no default or event of default has occurred and is continuing under the Indenture.
The net proceeds received from the issuance of the Convertible Notes were initially allocated between long-term debt, the liability component, in the amount of $143,723, and additional paid-in capital, the equity component, in the amount of $50,235. Additional paid-in capital was further reduced by $13,367 of deferred taxes resulting from the difference between the carrying amount and the tax basis of the Convertible Notes that is created by the equity component, which also resulted in deferred tax benefit recognized from the reversal of valuation allowances on the then current year domestic operating losses in the same amount (Note 13). As of December 31, 2019, the outstanding principal balance on the Convertible Notes was $200,000 and the carrying value of long-term debt was $157,560. The effective interest rate on the Convertible Notes, including amortization of the long-term debt discount and debt issuance costs, is 11.02%. As of December 31, 2019, the unamortized long-term debt discount and debt issuance costs totaled $42,440.
The components of interest expense related to the Convertible Notes were as follows:
 Year Ended December 31,
 2019 2018
Cash interest expense$7,000
 $3,462
Non-cash interest expense9,459
 4,378
Total interest expense$16,459
 $7,840

Accrued interest of $3,500 is included in other accrued liabilities on the accompanying consolidated balance sheet as of December 31, 2019.
ActoBio Convertible Notes
In September 2018, ActoBio issued $30,000 of convertible promissory notes (the "ActoBio Notes") to a related party in conjunction with an asset acquisition with Harvest (Note 4). The ActoBio Notes have a maturity date of September 6, 2020, accrue interest at 3.0% compounded annually ("accrued PIK interest"), are convertible into shares of ActoBio common stock at any time by the holder, and are automatically convertible in shares of ActoBio common stock upon the closing of certain financing events as defined in the ActoBio Notes. If the ActoBio Notes have not been converted to ActoBio common stock by the maturity date, ActoBio can pay the principal and accrued PIK interest in cash or with shares of Precigen common stock at its election. There are no embedded features that are required to be separated from the debt host and accounted for separately, so the ActoBio Notes were recorded at $30,000. Interest expense was $921 and $290 for the years ended December 31, 2019 and 2018, respectively. As of December 31, 2019, the carrying value of the ActoBio Notes, including accrued interest, was $31,211.

Precigen and PGEN Therapeutics Convertible Note
In December 2018, in conjunction with the Merck Purchase Agreement (Note 6), Precigen and PGEN Therapeutics jointly and severally issued a $25,000 convertible note (the "Merck Note") to Ares Trading in exchange for cash. The Merck Note has a maturity date of June 28, 2021 and will be converted to Precigen common stock on the first trading day following maturity if not otherwise converted prior to that date. Prior to maturity, Ares Trading may convert the Merck Note, at their election, into (i) Precigen common stock at any time, (ii) Precigen common stock upon the Company's closing of qualified financing as defined in the agreement, (iii) PGEN Therapeutics equity upon PGEN Therapeutics closing a qualified financing as defined in the agreement, and (iv) PGEN Therapeutics common stock upon the closing of a qualified initial public offering ("IPO") of PGEN Therapeutics common stock. In the event of a conversion upon a qualified IPO, the conversion price will be 90% of the IPO price. There is no stated interest rate on the Merck Note. However, in the event Ares Trading elects to convert the Merck Note into PGEN Therapeutics equity, the Merck Note accrues interest at a rate of 5% per year ("PIK interest") and will be converted with the outstanding principal. The Company determined that the potential PIK interest and IPO conversion discount represented embedded derivatives requiring bifurcation from the debt host but had no significant value as of December 31, 2019.
Notes Payable
Trans Ova has a note payable to American State Bank whichthat matures in April 2033 and hashad an outstanding principal balance of $4,872$4,077 as of December 31, 2017.2019. Trans Ova pays monthly installments of $39, which includes interest at 3.95%. The note payable is collateralized by certain of Trans Ova's real estate and non-real estate assets.
AquaBounty has a royalty-based financing grant from the Atlantic Canada Opportunities Agency, a Canadian government agency, to provide funding of a research and development project. The total amount available under the award was $2,288, which AquaBounty claimed over a five year period. All amounts claimed by AquaBounty must be repaid in the form of a 10% royalty on any products commercialized out of this research and development project until fully paid. Because the timing of commercialization is subject to additional regulatory considerations, the timing of repayment is uncertain. As of the date of the acquisition by Intrexon in March 2013, AquaBounty had claimed $1,952 of the available funds and this amount was recorded at its acquisition date fair value of $1,107. The Company accretes the difference of $845 between the face value of amounts drawn and the acquisition date fair value over the expected period of repayment. Subsequent to the acquisition date, AquaBounty claimed the remaining balance available under the grant, resulting in total long term debt of $2,132 as of December 31, 2017.Future Maturities
Future maturities of long termlong-term debt are as follows:
2020$31,670
202125,328
2022341
2023200,355
2024369
Thereafter2,368
Total$260,431

2018$502
2019401
2020372
2021832
2022360
Thereafter3,438
Total$5,905
The AquaBounty royalty-based financing grant is not included in the table above due to the uncertainty of the timing of repayment.

13. Income Taxes
The components of loss from continuing operations before income taxes are presented below:
 Year Ended December 31,
 2019 2018 2017
Domestic$(205,413) $(428,410) $(24,965)
Foreign(3,274) (1,332) (53,402)
Loss from continuing operations before income taxes$(208,687) $(429,742) $(78,367)

 Year Ended December 31,
 2017 2016 2015
Domestic$(71,343) $(157,067) $(69,287)
Foreign(58,357) (37,084) (17,691)
Loss before income taxes$(129,700) $(194,151) $(86,978)

The components of income tax expense (benefit) from continuing operations are presented below:
 Year Ended December 31,
 2019 2018 2017
United States federal income taxes:     
Current$
 $(31) $27
Deferred(561) (11,855) (523)
Foreign income taxes:     
Current34
 68
 (4)
Deferred(230) 635
 2,308
State income taxes:     
Current
 113
 
Deferred(173) (4,355) 264
Income tax expense (benefit) from continuing operations$(930) $(15,425) $2,072
 Year Ended December 31,
 2017 2016 2015
U.S. federal income taxes:     
Current$27
 $(17) $22
Deferred(523) 1,396
 1,732
Foreign income taxes:     
Current(379) (393) (123)
Deferred(2,269) (5,177) (1,003)
State income taxes:     
Deferred264
 314
 388
Income tax expense (benefit)$(2,880) $(3,877) $1,016

Income tax expense (benefit) from continuing operations for the years ended December 31, 2017, 20162019, 2018 and 20152017 differed from amounts computed by applying the applicable U.S.United States federal corporate income tax rate of 21% for 2019 and 2018, and 34% for 2017, to loss before income taxes as a result of the following:
 2019 2018 2017
Computed statutory income tax benefit from continuing operations$(43,824) $(90,246) $(26,645)
State and provincial income tax benefit, net of federal income taxes(7,298) (23,347) (1,888)
Nondeductible stock based compensation10,303
 4,696
 3,391
Nondeductible officer compensation595
 294
 476
Gain on dividend distribution of AquaBounty common stock
 
 3,965
Impairment of goodwill273
 
 4,700
Research and development tax incentives(1,772) (185) (359)
Acquisition and internal restructuring transaction costs260
 52
 354
Provisional impact of the Tax Act
 
 85,288
Enacted changes in foreign tax rates and foreign tax reforms
 
 2,021
Reacquired in-process research and development
 2,696
 
Change in deferred state tax rate
 8,666
 
United States-foreign rate differential(76) 215
 410
Other, net(72) (3,517) (189)
 (41,611) (100,676) 71,524
Change in valuation allowance for deferred tax assets40,681
 85,251
 (69,452)
Total income tax expense (benefit) from continuing operations$(930) $(15,425) $2,072
 2017 2016 2015
Computed statutory income tax benefit$(44,098) $(66,011) $(29,573)
State and provincial income tax benefit, net of federal income taxes(3,294) (7,905) (3,157)
Nondeductible stock based compensation4,147
 3,321
 3,182
Nondeductible officer compensation476
 
 2,433
Gain on dividend distribution of AquaBounty common stock3,965
 
 
Impairment of goodwill4,700
 
 
Research and development tax incentives(1,166) (6,350) (348)
Acquisition and internal restructuring transaction costs354
 571
 883
Provisional impact of the Tax Act85,288
 
 
Enacted changes in foreign tax rates and foreign tax reforms2,138
 
 (961)
U.S.-foreign rate differential5,410
 3,463
 620
Other, net(64) 1,485
 (98)
 57,856
 (71,426) (27,019)
Change in valuation allowance for deferred tax assets(60,736) 67,549
 28,035
Total income tax expense (benefit)$(2,880) $(3,877) $1,016


The tax effects of temporary differences that comprise the deferred tax assets and liabilities included in continuing operations as of December 31, 20172019 and 2016,2018, are as follows:
 2019 2018
Deferred tax assets   
Allowance for doubtful accounts$2,140
 $1,490
Inventory415
 614
Equity securities and investments in affiliates11,933
 30,241
Property, plant and equipment1,830
 
Intangible assets85,308
 78,858
Accrued liabilities3,385
 4,412
Lease liabilities10,035
 
Stock-based compensation19,389
 28,885
Deferred revenue14,876
 16,297
Research and development tax credits9,686
 10,558
Investments in subsidiaries included in discontinued operations8,592
 
Net operating and capital loss carryforwards196,663
 129,291
Total deferred tax assets364,252
 300,646
Less: Valuation allowance349,008
 292,217
Net deferred tax assets15,244
 8,429
Deferred tax liabilities   
Property, plant and equipment
 149
Right-of-use assets8,091
 
Intangible assets
 
Long-term debt9,987
 12,136
Total deferred tax liabilities18,078
 12,285
Net deferred tax liabilities included in continuing operations$(2,834) $(3,856)
 2017 2016
Deferred tax assets   
Allowance for doubtful accounts$1,300
 $1,676
Inventory489
 447
Equity securities and investments in affiliates17,510
 31,729
Accrued liabilities and long-term debt3,131
 4,168
Stock-based compensation26,936
 8,460
Deferred revenue61,785
 68,056
Research and development tax credits11,385
 10,396
Net operating and capital loss carryforwards111,453
 144,502
Total deferred tax assets233,989
 269,434
Less: Valuation allowance215,582
 256,165
Net deferred tax assets18,407
 13,269
Deferred tax liabilities   
Property, plant and equipment237
 406
Intangible assets33,790
 29,870
Total deferred tax liabilities34,027
 30,276
Net deferred tax liabilities$(15,620) $(17,007)

Activity within the valuation allowance for deferred tax assets included in continuing operations during the years ended December 31, 2017, 20162019, 2018 and 20152017 was as follows:
 2019 2018 2017
Valuation allowance at beginning of year$292,217
 $211,078
 $253,549
Increase (decrease) in valuation allowance as a result of     
Mergers and acquisitions, net
 418
 
Deconsolidation of AquaBounty(3,504) 
 
Establishment of deferred taxes for subsidiaries included in discontinued operations8,592
 
 
Current year continuing operations40,681
 107,284
 17,735
Discontinued operations treated as asset sales10,585
 3,832
 6,940
Adoption of ASC 842512
 
 
Adoption of ASC 606
 (7,477) 
Adoption of ASU 2016-09
 
 17,843
Provisional impact of the Tax Act
 
 (87,473)
Equity component of long-term debt
 (13,367) 
Change in deferred state tax rate
 (8,666) 
Changes in foreign tax rates and foreign tax reforms
 
 1,494
Foreign currency translation adjustment(75) (885) 990
Valuation allowance at end of year$349,008
 $292,217
 $211,078

 2017 2016 2015
Valuation allowance at beginning of year$256,165
 $190,174
 $161,660
Increase (decrease) in valuation allowance as a result of     
Mergers and acquisitions, net
 (1,416) 1,228
Current year operations26,619
 67,549
 28,035
Adoption of ASU 2016-0917,843
 
 
Provisional impact of the Tax Act(87,473) 
 
Changes in foreign tax rates and foreign tax reforms1,327
 
 
Foreign currency translation adjustment1,101
 (142) (749)
Valuation allowance at end of year$215,582
 $256,165
 $190,174

In assessing the realizability of deferred tax assets, management considers whether it is more likely than not that some portion or all of the deferred tax assets will not be realized. The ultimate realization of deferred tax assets is dependent upon the generation of future taxable income during the periods in which those temporary differences become deductible. Management considers the scheduled reversal of deferred tax liabilities, projected future taxable income and tax planning strategies in making this assessment. Due to the Company and its subsidiaries' histories of net losses incurred from inception, any corresponding net domestic and certain foreign deferred tax assets have been fully reserved as the Company and its subsidiaries cannot sufficiently be assured that these deferred tax assets will be realized. The components of the deferred tax assets and liabilities as of the date of the mergers and acquisitions by the Company prior to consideration of the valuation allowance are substantially similar to the components of deferred tax assets presented herein.
The Company's past issuances of stock and mergers and acquisitions have resulted in ownership changes as defined in Section 382 of the Internal Revenue Code of 1986, as amended ("Section 382"). As a result, utilization of portions of the net operating losses may be subject to annual limitations, however as of December 31, 2017,2019, all such limited losses applicable to Intrexon,Precigen, other than losses inherited via acquisition, have been fully utilized. As of December 31, 2017,2019, approximately $33,590$42,100 of the Company's domestic net operating losses were inherited via acquisition, including $13,376 acquired via the acquisition of GenVec, and are limited based on the value of the target at the time of the transaction.

As of December 31, 2017,2019, the Company has net operating loss carryforwards for U.S.United States federal income tax purposes of approximately $244,274$568,800 available to offset future taxable income, including approximately $316,100 generated after 2017, United States capital loss carryforwards of approximately $111,600, and federal and state research and development tax credits of $7,737,approximately $9,600, prior to consideration of annual limitations that may be imposed under Section 382. TheseNet operating loss carryforwards generated prior to 2018 will begin to expire in 2022.2022, and capital loss carryforwards will expire if unutilized by 2024. The Company's direct foreign subsidiaries included in continuing operations have foreign loss carryforwards of approximately $151,423,$72,800, most of which do not expire.
The Company does not record deferred taxes on the undistributed earnings of its direct foreign subsidiaries because it does not expect the temporary differences related to those unremitted earnings to reverse in the foreseeable future. As of December 31, 2017,2019, the Company's direct foreign subsidiaries included in continuing operations had accumulated deficits of approximately $65,05214,900. Future distributions of accumulated earnings of the Company's direct foreign subsidiaries may be subject to U.S.United States income and foreign withholding taxes. The Company is evaluating this accounting assertion in light of
In the Tax Act.
The Company does not file a consolidated income tax return with AquaBounty. As ofyear ended December 31, 2017, AquaBounty has loss carryforwards for federal and foreign income tax purposes of approximately $28,209 and $15,653, respectively, and foreign tax credits of approximately $2,832 available to offset future taxable income, prior to consideration of annual limitations that may be imposed under Section 382 or analogous foreign provisions. These carryforwards will begin to expire in 2018. As a result of the Company's ownership in AquaBounty passing 50% in 2013, an annual Section 382 of approximately $900 per year will apply to domestic losses and credits carried forward by AquaBounty from prior years, which are also subject to prior Section 382 limitations.
The Company recorded a net provisional income tax benefit of $2,185 upon enactment of the Tax Act, which is comprised of several items. Amounts related to the remeasurement of most of the Company's domestic deferred tax assets as a result of the U.S.United States corporate rate change to 21% as part of the Tax Act are $87,473, which was fully offset by a reduction in the Company's valuation allowance. The Company's net U.S.United States deferred tax liability that is not offset by a valuation allowance was similarly written down, and the Company recorded a provisional deferred tax benefit of $1,730. The Company also recorded a provisional current tax benefit of $455 related to the expected refundability of accumulated corporate alternative minimum tax credits. The Company has provisionally estimated its transition tax exposure to be zero,0, as any accumulated earnings in foreign subsidiaries are offset by accumulated deficits in other foreign subsidiaries.
The provisional amounts recorded are subject to further refinement within the measurement period prescribed by SAB 118. As a result, the recorded amounts are subject to change, possibly materially, due to, among other things, changes in interpretations ofCompany completed its accounting for the Tax Act any legislative action to address questions that arise becausein the fourth quarter of the Tax Act, any changes in accounting standards for income taxes or related interpretations in response2018, and there were no significant adjustments to the Tax Act, or any updates or changes to estimates the Company utilized to provisionally compute the transition impact.previously recorded provisional amounts.
Additionally, in December 2017, Belgium enacted significant tax reform measures, the most significant of which to the Company is the limitation on the utilization of accumulated losses in years after 2017. After that date, loss carryforwards can only be used to offset 70% of taxable income that exceeds a certain threshold. As a result, the Company recorded adjustments to its net deferred tax assets and valuation allowances. These adjustments resulted in a net deferred tax liability of $2,307, which was recorded as a component of deferred tax expense for the year ended December 31, 2017.
The Company and its subsidiaries do not have material unrecognized tax benefits as of December 31, 2017.2019. The Company does not anticipate significant changes in the amount of unrecognized tax benefits in the next 12 months. The Company's tax returns for years 2004 and forward are subject to examination by federal or state tax authorities due to the carryforward of unutilized net operating and capital losses and research and development tax credits.
14. Shareholders' Equity
Issuances of Precigen Common Stock
In January 2018, Precigen closed a public offering of 6,900,000 shares of its common stock, including 1,000,000 shares of common stock purchased by affiliates of Third Security. The net proceeds of the offering were $82,374, after deducting underwriting discounts of $3,688 and offering expenses of $188, all of which were capitalized.

In December 2017, the Company entered into a securities purchase agreement with an affiliate of Third Security for the private placement of 1,207,980 shares of the Company's common stock for gross proceeds of $13,686.
In August 2015,Share Lending Agreement
Concurrently with the Company closed a public offering of 5,609,756the Convertible Notes (Note 12), Precigen entered into a share lending agreement (the "Share Lending Agreement") with J.P. Morgan Securities LLC (the "Share Borrower") pursuant to which Precigen loaned and delivered 7,479,431 shares of its common stock (the "Borrowed Shares") to the net proceedsShare Borrower. The Share Lending Agreement will terminate, and the Borrowed Shares will be returned to Precigen within five business days of which were $218,193, after deducting underwriting discounts of $11,500 and offering expenses paidsuch termination, upon (i) termination by the CompanyShare Borrower or (ii) the earliest to occur of approximately $306,(a) October 1, 2023 and (b) the date, if any, on which the Share Lending Agreement is either mutually terminated or terminated by one party upon a default by the other party. The Share Borrower maintains collateral in the form of cash or certain permitted non-cash collateral with a market value at least equal to the market value of the Borrowed Shares as security for the obligation of the Share Borrower to return the Borrowed Shares when required by the terms above. The Borrowed Shares were offered and sold to the public at a price of $13.37 per share under a registered offering (the "Borrowed Shares Offering"). Precigen did not receive any proceeds from the sale of the Borrowed Shares to the public or any lending fees from the Share Lending Agreement. The Share Borrower or its affiliates received all the proceeds from the sale of the Borrowed Shares to the public. Affiliates of Third Security purchased all of which were capitalized.
In January 2015, the Company closed a public offering of 4,312,500 shares of its common stock, including 555,556 shares of common stock purchased by affiliatesin the Borrowed Shares Offering.
The Share Lending Agreement was entered into at fair value and met the requirements for equity classification. Therefore, the value is netted against the issuance of Third Security. Thethe Borrowed Shares in additional paid-in capital. Additionally, the Borrowed Shares are not included in the denominator for loss per share attributable to Precigen shareholders unless the Share Borrower defaults on the Share Lending Agreement.
Issuances of AquaBounty Common Stock
In March 2019, AquaBounty completed an underwritten public offering that resulted in net proceeds of the offering were $110,041,$6,611 after deducting discounts, fees, and expenses. See Note 1 for additional discussion of issuances of AquaBounty common stock in April 2019, which resulted in the deconsolidation of AquaBounty.

In January 2018, AquaBounty completed an underwritten public offering that resulted in net proceeds of $10,616 after deducting discounts, fees and expenses. As part of this offering, Precigen purchased $5,000 of additional AquaBounty common stock. In October 2018, certain investors exercised warrants acquired from the January 2018 offering, resulting in additional net proceeds of $4,316, including $3,077 from Precigen.
underwriting discountsIn January 2017, in conjunction with the listing by AquaBounty of their common stock on the Nasdaq Stock Market, Precigen purchased $25,000 of additional AquaBounty common stock and commissionssubsequently distributed shares of $6,086 and offering expenses paid by the Company of approximately $311, all of which were capitalized.AquaBounty common stock as a dividend to Precigen shareholders.
DividendsOperating Leases
The Company adopted ASC Topic 842, Leases ("ASC 842"), effective January 1, 2019. Under ASC 842, the Company determines if an arrangement is a lease at inception. Operating leases are included as right-of-use assets ("ROU Assets") and lease liabilities on the consolidated balance sheets. The Company has elected not to Shareholdersrecognize ROU Assets or lease liabilities for leases with lease terms of one year or less.

Lease liabilities are recognized based on the present value of the future minimum lease payments over the lease term at commencement date. The initial measurement of the ROU Asset also includes any lease payments made, adjusted for lease incentives. For leases that contain non-lease payments, the Company accounts for the lease and non-lease components as a single lease component. Variable lease payments, which primarily include payments for non-lease components such as maintenance costs, are excluded from the ROU Assets and lease liabilities and are recognized in the period in which the obligation for those payments is incurred. As the Company's operating leases do not provide an implicit interest rate, the Company uses its incremental borrowing rate at the lease commencement date, which is the estimated rate the Company would be required to pay for a collateralized borrowing equal to the total lease payments over the term of the lease, in determining the present value of future payments. The lease term for all of the Company's leases includes the noncancelable period of the lease plus any additional periods covered by options that the Company is reasonably certain to exercise, either to extend or to not terminate the lease. Lease expense is recognized on a straight-line basis over the lease term.
Goodwill
Goodwill represents the future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized. Goodwill is reviewed for impairment at least annually. The Company performs a qualitative assessment to determine whether it is more-likely-than-not that the fair value of a reporting unit is less than its carrying amount prior to performing the goodwill impairment test. If this is the case, the goodwill impairment test is required. If it is more-likely-than-not that the fair value of a reporting unit is greater than the carrying amount, the quantitative goodwill impairment test is not required.
If the quantitative goodwill impairment test is required or elected to be performed, first, the fair value of the reporting unit is compared with its carrying amount (including goodwill). If the fair value of the reporting unit is less than its carrying amount, an indication of goodwill impairment exists for the reporting unit and the entity must record the impairment charge for the excess carrying amount, which is limited to the amount of goodwill allocated to the reporting unit. If the fair value of the reporting unit exceeds its carrying amount, no goodwill impairment charge is necessary.
The Company performs its annual impairment review of goodwill in the fourth quarter, or sooner if a triggering event occurs prior to the annual impairment review. In April 2019, as a result of the Company's change in segments (Notes 2 and 20), one of the Company's prior reporting units was separated into various reporting units. Accordingly, the Company performed a relative fair value allocation of certain of its goodwill to the applicable reporting units and reviewed the reallocated goodwill for impairment.
The fair value of the reporting units are primarily determined based on the income approach. The income approach is a valuation technique in which fair value is based from forecasted future cash flows, discounted at the appropriate rate of return commensurate with the risk as well as current rates of return for equity and debt capital as of the valuation date. The forecast used in the Company's estimation of fair value was developed by management based on historical operating results, incorporating adjustments to reflect management's planned changes in operations and market considerations. The discount rate utilizes a risk adjusted weighted average cost of capital. To assess the reasonableness of the calculated reporting unit fair values, the Company compares the sum of the reporting units' fair values to its market capitalization (per share stock price times the number of shares outstanding) and calculates an implied control premium (the excess of the sum of the reporting units' fair values over the market capitalization) and then assesses the reasonableness of its implied control premium.
See Notes 3 and 11 for additional discussion regarding goodwill impairment charges recorded in the year ended December 31, 2019.
Intangible Assets
Intangible assets subject to amortization consist of patents, developed technologies and know-how; customer relationships; and trademarks acquired as a result of mergers and acquisitions. These intangible assets are subject to amortization, were recorded at fair value at the date of acquisition, and are stated net of accumulated amortization. Indefinite-lived intangible assets consist of in-process research and development technologies acquired in mergers or acquisitions and were recorded at fair value at the dates of the respective acquisitions.
The Company amortizes long-lived intangible assets to reflect the pattern in which the economic benefits of the intangible asset are expected to be realized. The intangible assets are amortized over their estimated useful lives, ranging from three to eighteen years for the patents, developed technologies, and know-how; customer relationships; and trademarks.

Impairment of Long-Lived Assets
Long-lived assets to be held and used, including property, plant and equipment and intangible assets subject to amortization, are reviewed for impairment whenever events or changes in circumstances indicate that the carrying amount of the assets may not be recoverable. Conditions that would necessitate an impairment assessment include a significant decline in the observable market value of an asset, a significant change in the extent or manner in which an asset is used, or a significant adverse change that would indicate that the carrying amount of an asset or group of assets is not recoverable.
Indefinite-lived intangible assets, including in-process research and development, are tested for impairment annually, or more frequently if events or circumstances between annual tests indicate that the asset may be impaired. Impairment losses on indefinite-lived intangible assets are recognized based solely on a comparison of their fair value to carrying value, without consideration of any recoverability test. The Company monitors the progression of its in-process research and development, as the likelihood of success is contingent upon commercial development or regulatory approval.
See Notes 3 and 10 for additional discussion of impairment of long-lived assets for the three years ended December 31, 2019.
Convertible Notes
The Company allocated the proceeds received in July 2018 from the issuance of Precigen's 3.50% convertible senior notes due 2023 (the "Convertible Notes") between long-term debt (liability component) and additional paid-in capital (equity component) within the consolidated balance sheet. The original value assigned to long-term debt is the estimated fair value as of the issuance date of a similar debt instrument without a conversion option. The original value assigned to additional paid-in capital represents the value of the conversion option and is calculated by deducting the fair value of the long-term debt from the principal amount of the Convertible Notes and is not remeasured as long as it continues to meet the requirements for equity classification. The original value of the conversion option will accrete to the carrying value of the long-term debt and result in additional noncash interest expense over the expected life of the Convertible Notes using the effective interest method.
Debt issuance costs related to the Convertible Notes are also allocated between long-term debt and additional paid-in capital based on the original value assigned to each. Debt issuance costs allocated to long-term debt reduced the original carrying value and will accrete to the carrying value of the long-term debt and result in additional noncash interest expense over the expected life of the Convertible Notes using the effective interest method. Debt issuance costs allocated to additional paid-in capital are recorded as reduction of the original value assigned to the conversion option.
See Note 12 for the further discussion of the Convertible Notes.
Foreign Currency Translation
The assets and liabilities of foreign subsidiaries, where the local currency is the functional currency, are translated from their respective functional currencies into United States dollars at the exchange rates in effect at the balance sheet date, with resulting foreign currency translation adjustments recorded in the consolidated statement of comprehensive loss. Revenue and expense amounts are translated at average rates during the period.
Income Taxes
Income taxes are accounted for under the asset and liability method. Deferred tax assets and liabilities are recognized for the future tax consequences attributable to both differences between the financial statement carrying amounts of existing assets and liabilities and their respective tax bases as well as operating loss and tax credit carryforwards. Deferred tax assets and liabilities are measured using enacted tax rates expected to apply to taxable income in the years in which those temporary differences are expected to be recovered or settled. The effect on deferred tax assets and liabilities of a change in tax rates is recognized in income in the period that includes the enactment date of the change. Valuation allowances are established when necessary to reduce deferred tax assets to the amount expected to be realized.
The Company identifies any uncertain income tax positions and recognizes the effect of income tax positions only if those positions are more likely than not of being sustained. Recognized income tax positions are measured at the largest amount that is greater than 50% likely of being realized. Changes in recognition or measurement are reflected in the period in which the change in judgment occurs. The Company records interest, if any, related to unrecognized tax benefits as a component of interest expense. Penalties, if any, are recorded in selling, general and administrative expenses.

On December 22, 2017, the Tax Cuts and Jobs Act of 2017 (the "Tax Act") was signed into law and significantly revised United States corporate income tax law by, among other things, reducing the corporate income tax rate to 21% effective January 1, 2018, eliminating the corporate alternative minimum tax and implementing a modified territorial tax system that includes a one-time transition tax on deemed repatriated earnings from foreign subsidiaries. The United States Securities and Exchange Commission ("SEC") Staff issued Staff Accounting Bulletin No. 118 to address the application of U.S. GAAP in situations when a registrant does not have the necessary information available, prepared, or analyzed, including computations, in reasonable detail to complete the accounting for certain income tax effects of the Tax Act. The Company recognized provisional tax impacts related to revaluation of most of the Company's domestic deferred tax assets, the impact of revaluation of those deferred tax assets on the Company's valuation allowance and elimination of the corporate alternative minimum tax, and included those amounts in the consolidated financial statements for the year ended December 31, 2017. The Company completed its accounting for the Tax Act in the fourth quarter of 2018, and there were no significant adjustments to the previously recorded provisional amounts.
In addition, the Tax Act implemented a new minimum tax on global intangible low-taxed income ("GILTI"). A company can elect an accounting policy to account for GILTI in either of the following ways:
As a period charge in the future period in which the tax arises; or
As part of deferred taxes related to the investment or subsidiary.
The Company elected to account for GILTI as a period charge in the period in which the tax arises. There was no impact to the accompanying consolidated financial statements as of and for the years ended December 31, 2019 and 2018.
See Note 13 for additional discussion of the Tax Act.
Share-Based Payments
Precigen uses the Black-Scholes option pricing model to estimate the grant-date fair value of all stock options. The Black-Scholes option pricing model requires the use of assumptions for estimated expected volatility, estimated expected term of stock options, risk-free rate, estimated expected dividend yield, and the fair value of the underlying common stock at the date of grant. Since Precigen does not have sufficient history to estimate the expected volatility of its common stock price, expected volatility is based on a blended approach that utilizes the volatility of Precigen's common stock and the volatility of peer public entities that are similar in size and industry. Precigen estimates the expected term of all options based on previous history of exercises. The risk-free rate is based on the United States Treasury yield curve in effect at the time of grant for the expected term of the option. The expected dividend yield is 0% as Precigen does not expect to declare cash dividends in the near future. The fair value of the underlying common stock is determined based on the quoted market price on the Nasdaq Global Select Market ("Nasdaq"). Forfeitures are recorded when incurred. The assumptions used in the Black-Scholes option pricing model for the years ended December 31, 2019, 2018 and 2017 are set forth in the table below:
 2019 2018 2017
Valuation assumptions     
Expected dividend yield0% 0% 0%
Expected volatility58%—64% 55%—59% 57%—60%
Expected term (years)6.25 6.25 6.25
Risk-free interest rate1.53%—2.58% 2.33%—3.06% 1.89%—2.27%

Grant date fair value for the Company's restricted stock units ("RSUs") is based on the fair value of the underlying common stock as determined based on the quoted market price on the Nasdaq on the date of grant.
Net Loss per Share
Basic net loss per share is calculated by dividing net loss attributable to common shareholders by the weighted average shares outstanding during the period, without consideration of common stock equivalents. Diluted net loss per share is calculated by adjusting weighted average shares outstanding for the dilutive effect of common stock equivalents outstanding for the period, using the treasury-stock method. For purposes of the diluted net loss per share calculation, shares to be issued pursuant to convertible debt, stock options, RSUs, and warrants are considered to be common stock equivalents but are excluded from the calculation of diluted net loss per share because their effect would be anti-dilutive and, therefore, basic and diluted net loss per share were the same for all periods presented.

Segment Information
The Company realigned its business in April 2019, and as a result, its chief operating decision maker ("CODM") now regularly reviews disaggregated financial information for various operating segments. As of December 31, 2019, the Company's reportable segments were (i) PGEN Therapeutics; (ii) ActoBio; (iii) MBP Titan; and (iv) Trans Ova. All of Precigen's consolidated subsidiaries and operating divisions that did not meet the quantitative thresholds to report separately are combined and reported in a single category, All Other. See Note 1 for a description of each of these reportable segments. Corporate expenses, which are not allocated to the segments and are managed at a consolidated level, include costs associated with general and administrative functions, including the Company's finance, accounting, legal, human resources, information technology, corporate communication, and investor relations functions. Corporate expenses exclude interest expense, depreciation and amortization, stock-based compensation expense, and equity in net loss of affiliates and include unrealized and realized gains and losses on the Company's securities portfolio as well as dividend income. The Company's segment presentation has been recast to retrospectively reflect the change from 1 reportable segment to multiple reportable segments. See Note 20 for further discussion of the Company's segments.
Use of Estimates
The preparation of financial statements in conformity with U.S. GAAP requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities, the disclosure of contingent assets and liabilities at the date of the financial statements, and the reported amounts of revenues and expenses during the reporting periods. Actual results could differ from those estimates.
Recently Adopted Accounting Pronouncements
The Company adopted ASC 842 on January 2017,1, 2019 using the modified retrospective method as of the adoption date without restating prior periods. In addition, the Company distributedelected to its shareholders 1,776,557 sharesuse the package of AquaBounty common stock valued at $22,385. The distribution constitutedpractical expedients which allowed the Company to not have to reassess whether expired or existing contracts contain leases under the new definition of a dividend to shareholderslease or the lease classification for expired or existing leases under ASC Topic 840. As a result of recordthe adoption of ASC 842, the Company recorded ROU Assets and lease liabilities of $30,000 and $32,300, respectively, as of January 9, 2017. 1, 2019 for continuing operations. The difference between the ROU Assets and lease liabilities primarily represents the balance of deferred rent as of December 31, 2018 that resulted from historical straight-lining of operating leases expense, which was reclassified upon adoption to reduce the measurement of the ROU Assets. There was no impact to accumulated deficit.
In connectionJune 2018, the FASB issued Accounting Standards Update ("ASU") 2018-07, Compensation-Stock Compensation (Topic 718): Improvements to Nonemployee Share-Based Payment Accounting ("ASU 2018-07"). The provisions of ASU 2018-07 expand the scope of ASC Topic 718 to include share-based payment transactions for acquiring goods and services from nonemployees. The Company adopted this standard effective January 1, 2019, and there was no material impact to the accompanying consolidated financial statements.
Recently Issued Accounting Pronouncements
In October 2018, the FASB issued ASU 2018-18, Collaborative Arrangements (Topic 808): Clarifying the Interaction between Topic 808 and Topic 606 ("ASU 2018-18"). The provisions of ASU 2018-18 clarify when certain transactions between collaborative arrangement participants should be accounted for under ASC Topic 606, Revenue from Contracts with Customers ("ASC 606"), and incorporates unit-of-account guidance consistent with ASC 606 to aid in this determination. The guidance is effective for annual periods and interim periods within those annual periods beginning after December 15, 2019, and is effective for the distributionCompany for the year ending December 31, 2020. The Company is currently evaluating the impact that the implementation of this standard will have on the Company's consolidated financial statements.
In October 2018, the FASB issued ASU 2018-17, Consolidation(Topic 810): Targeted Improvements to Related Party Guidance for Variable Interest Entities ("ASU 2018-17"). The provisions of ASU 2018-17 modify the guidance under ASC Topic 810 related to the evaluation of indirect interests held through related parties under common control when determining whether fees paid to decision makers and service providers are variable interests. Indirect interests held through related parties that are under common control are no longer considered to be the equivalent of direct interests in their entirety and instead should be considered on a proportional basis. This guidance more closely aligns with accounting of how indirect interests held through related parties under common control are considered for determining whether a reporting entity must consolidate a VIE. The guidance is effective for annual periods and interim periods within those annual periods beginning after December 15, 2019, and is effective for the Company for the year ending December 31, 2020. The Company is currently evaluating the impact that the implementation of this standard will have on the Company's consolidated financial statements.

In August 2018, the FASB issued ASU 2018-15, Intangibles - Goodwill and Other-Internal-Use Software (Subtopic 350-40): Customer's Accounting for Implementation Costs Incurred in a Cloud Computing Arrangement That Is a Service Contract ("ASU 2018-15"). The provisions of ASU 2018-15 clarify the accounting for implementation costs of a hosting arrangement that is a service contract. The new standard requires an entity (customer) in a hosting arrangement that is a service contract to follow existing internal-use software guidance to determine which implementation costs to capitalize as an asset related to the service contract and which costs to expense. Capitalized implementation costs of a hosting arrangement that is a service contract should be amortized over the term of the hosting arrangement, which might extend beyond the noncancelable period if there are options to extend or terminate. ASU 2018-15 also specifies the financial statement presentation of capitalized implementation costs and related amortization, in addition to required disclosures for material capitalized implementation costs related to hosting arrangements that are service contracts. The guidance is effective for annual periods and interim periods within those annual periods beginning after December 15, 2019, and is effective for the Company for the year ending December 31, 2020. The Company is currently evaluating the impact that the implementation of this standard will have on the Company's consolidated financial statements.
In August 2018, the FASB issued ASU 2018-13, Fair Value Measurements (Topic 820): Disclosure Framework-Changes to the Disclosure Requirements for Fair Value Measurements ("ASU 2018-13"). The provisions of ASU 2018-13 modify the disclosures related to recurring and nonrecurring fair value measurements. Disclosures related to the transfer of assets between Level 1 and Level 2 hierarchies have been eliminated and various additional disclosures related to Level 3 fair value measurements have been added, modified, or removed. The guidance is effective for annual periods and interim periods within those annual periods beginning after December 15, 2019, and is effective for the Company for the year ending December 31, 2020. The Company is currently evaluating the impact that the implementation of this standard will have on the Company's consolidated financial statements.
In June 2016, the FASB issued ASU 2016-13, Financial Instruments-Credit Losses (Topic 326): Measurement of Credit Losses on Financial Instruments ("ASU 2016-13"). The provisions of ASU 2016-13 modify the impairment model to utilize an expected loss methodology in place of the currently used incurred loss methodology, and requires a consideration of a broader range of reasonable and supportable information to inform credit loss estimates. The guidance is effective for annual periods and interim periods within those annual periods beginning after December 15, 2019, and is effective for the Company for the year ending December 31, 2020. The Company is currently evaluating the impact that the implementation of this standard will have on the Company's consolidated financial statements.
3. Discontinued Operations
On January 1, 2020, the Company and TS Biotechnology Holdings, LLC ("TS Biotechnology"), a related party and an entity managed by Third Security, entered into a Stock and Asset Purchase Agreement pursuant to which the termsCompany agreed to sell a majority of the Company's bioengineering assets and operations to TS Biotechnology for $53,000 and certain contingent payment rights (the "TS Biotechnology Sale"). The TS Biotechnology Sale closed on January 31, 2020. The assets and operations sold in the TS Biotechnology Sale included the following wholly owned subsidiaries, as well as certain equity incentive plans,securities held in Oragenics, Inc. ("Oragenics") and SH Parent that were directly related to the conversion termssubsidiaries sold:
Intrexon Produce Holdings, Inc. is the parent company of the Company's non-browning apple subsidiaries, Okanagan Specialty Fruits, Inc. and Fruit Orchard Holdings, Inc. (collectively referred herein as "Okanagan");
Intrexon UK Holdings, Inc. is the parent company of Oxitec Limited and subsidiaries, which is a pioneering company in biological insect solutions (referred to herein as "Oxitec");
ILH Holdings, Inc. includes the Company's fine chemicals operations that were focused primarily on microbial production of therapeutic compounds ("Fine Chemicals"); and
Blue Marble AgBio LLC which was formed in January 2020 and includes the Company's agriculture biotechnology assets and operations which were previously a division within Precigen ("AgBio").
Additionally, on January 2, 2020, the Company sold its equity interest in EnviroFlight, LLC ("EnviroFlight"), a JV with Darling Ingredients, Inc. ("Darling"), and related intellectual property rights to Darling for $12,200 (the "EnviroFlight Sale"). Unless referenced separately, the TS Biotechnology Sale and the EnviroFlight Sale are collectively referred to as the "Transactions".
The Transactions were approved by the Company's independent members of the board of directors in December 2019. The Transactions represent a strategic shift of the Company towards the Company becoming a primarily healthcare company

advancing technologies and products that address complex healthcare challenges. The assets, liabilities, and operations related to the Transactions are reclassified and presented as discontinued operations in the accompanying consolidated financial statements for all periods. Immediately prior to the reclassification, the Company evaluated goodwill, long-lived assets, and the equity method investment included in the Transactions for impairment. The Company recorded an impairment charge of $79,396, including $58,042 and $21,354 related to goodwill and other long-lived assets, respectively, at the Okanagan, Oxitec, Fine Chemicals, and AgBio reporting units. Additionally, the Company recorded a $10,283 impairment charge for the write down of the equity method investment and related intangible assets included in the EnviroFlight Sale. These impairment charges are included in loss from discontinued operations in the accompanying consolidated statement of operations for the year ended December, 31, 2019. As of December 31, 2019, the Company has estimated $942 of selling costs related to the Transactions.
The carrying values of the major classes of assets and liabilities included in assets and liabilities held for sale for the Transactions are as follows:
 December 31, 2019
 TS Biotechnology Sale EnviroFlight Sale Total
Assets     
Cash and cash equivalents$2,223
 $
 $2,223
Other current assets9,698
 
 9,698
Property, plant and equipment, net51,975
 
 51,975
Intangible assets, net20,891
 4,383
 25,274
Investments in affiliates
 7,817
 7,817
Right-of-use assets13,622
 
 13,622
Other noncurrent assets212
 
 212
Total assets held for sale$98,621
 $12,200
 $110,821
Liabilities     
Deferred revenue, current (1)$8,723
 $
 $8,723
Operating lease liabilities, current2,459
 
 2,459
Other current liabilities3,058
 41
 3,099
Deferred revenue, net of current portion (2)19,410
 
 19,410
Operating lease liabilities, net of current portion12,623
 
 12,623
Other long-term liabilities1,019
 
 1,019
Total liabilities held for sale$47,292
 $41
 $47,333
(1)Includes deferred revenue, current, from related parties of $1,243.
(2)Includes deferred revenue, net of current portion, from related parties of $6,836.

 December 31, 2018
 TS Biotechnology Sale EnviroFlight Sale Total
Assets     
Cash and cash equivalents$5,892
 $
 $5,892
Other current assets3,263
 
 3,263
Property, plant and equipment, net41,978
 
 41,978
Intangible assets, net31,782
 8,547
 40,329
Investments in affiliates
 16,720
 16,720
Goodwill55,958
 
 55,958
Other noncurrent assets1,376
 
 1,376
Total assets held for sale$140,249
 $25,267
 $165,516
Liabilities     
Deferred revenue, current (1)$4,466
 $
 $4,466
Other current liabilities3,874
 
 3,874
Deferred revenue, net of current portion (2)7,482
 
 7,482
Other long-term liabilities3,476
 
 3,476
Total liabilities held for sale$19,298
 $
 $19,298
(1)Includes deferred revenue, current, from related parties of $443.
(2)Includes deferred revenue, net of current portion, from related parties of $7,455.
The following tables present the financial results of discontinued operations:
 Year Ended December 31, 2019
 TS Biotechnology Sale EnviroFlight Sale Total
Revenue (1)$12,307
 $
 $12,307
Operating expenses (2)116,091
 10,794
 126,885
Operating loss(103,784) (10,794) (114,578)
Other expense, net(272) 
 (272)
Equity in net loss of affiliates
 (4,314) (4,314)
Loss before income taxes(104,056) (15,108) (119,164)
Income tax benefit3,005
 
 3,005
Loss from discontinued operations$(101,051) $(15,108) $(116,159)
(1)Includes revenue recognized from related parties of $3,042.
(2)Includes the impairment charge of $89,679 related to the Transactions discussed above.

 Year Ended December 31, 2018
 TS Biotechnology Sale EnviroFlight Sale Total
Revenue (1)$9,396
 $
 $9,396
Operating expenses (2)111,039
 470
 111,509
Operating loss(101,643) (470) (102,113)
Other expense, net(1,757) 
 (1,757)
Equity in net loss of affiliates
 (2,622) (2,622)
Loss before income taxes(103,400) (3,092) (106,492)
Income tax benefit6,103
 
 6,103
Loss from discontinued operations$(97,297) $(3,092) $(100,389)
(1)Includes revenue recognized from related parties of $4,665.
(2)
Includes an impairment charge of $60,504 recorded in 2018 related to Oxitec's developed technology targeting the Aedes Aegypti mosquito and a $5,057 loss on disposal of certain leasehold improvements, equipment and other fixed assets in conjunction with the closing of one of Oxitec's research and development facilities in Brazil.
 Year Ended December 31, 2017
 TS Biotechnology Sale EnviroFlight Sale Total
Revenue (1)$11,518
 $
 $11,518
Operating expenses (2)53,028
 470
 53,498
Operating loss(41,510) (470) (41,980)
Other expense, net(7,506) 
 (7,506)
Equity in net loss of affiliates
 (1,847) (1,847)
Loss before income taxes(49,016) (2,317) (51,333)
Income tax benefit4,952
 
 4,952
Loss from discontinued operations$(44,064) $(2,317) $(46,381)
(1)Includes revenue recognized from related parties of $8,185.
(2)Includes an impairment charge of $2,950 recorded as part of its annual impairment assessment of indefinite-lived intangible assets.

The following table presents the significant non-cash items, investments in EnviroFlight and purchases of property, plant and equipment for the discontinued operations that are included in the accompanying consolidated statements of cash flows.
 Year Ended December 31,
 2019 2018 2017
Adjustments to reconcile net loss to net cash used in operating activities     
Depreciation and amortization$5,107
 $9,007
 $9,536
Impairment loss89,679
 60,504
 2,950
Unrealized and realized depreciation on equity securities and preferred stock, net458
 1,927
 7,544
Equity in net loss of EnviroFlight4,314
 2,622
 1,847
Stock-based compensation expense2,507
 3,872
 4,683
Deferred income taxes(2,710) (5,703) (4,575)
Cash flows from investing activities     
Investments in EnviroFlight(2,000) (12,250) (4,750)
Purchases of property, plant and equipment(23,326) (21,191) (13,455)
Also see Note 23 below.
Equity Method Investments
The Company accounted for its investment in EnviroFlight using the equity method of accounting.
The Company accounted for its equity securities held in Oragenics, one of its collaborators and a related party, using the fair value option. Oragenics was considered an equity method investment through September 30, 2018.
Summarized financial data for equity method investments included in discontinued operations during the periods below are shown in the following tables.
 December 31,
 2019 2018
Current assets$703
 $5,119
Noncurrent assets30,549
 29,326
Total assets31,252
 34,445
Current liabilities2,352
 1,005
Non-current liabilities88
 
Total liabilities2,440
 1,005
Net assets$28,812
 $33,440
 Year Ended December 31,
 2019 2018 2017
Revenues$510
 $268
 $254
Operating expenses9,159
 12,709
 10,671
Operating loss(8,649) (12,441) (10,417)
Other, net21
 39
 (8)
Net loss$(8,628) $(12,402) $(10,425)
Where applicable, the notes to the consolidated financial statements have been updated to reflect information pertaining to the Company's continuing operations.

4. Mergers and Acquisitions
Asset Acquisition of Certain Harvest Entities
In September 2018, the Company, through its wholly owned subsidiary ActoBio, issued $30,000 of convertible promissory notes to Harvest, a related party, to acquire Harvest's ownership in CRS Bio, Inc. ("CRS Bio"); Genten Therapeutics, Inc. ("Genten Therapeutics"); and Relieve Genetics, Inc. ("Relieve Genetics") (collectively the "Harvest entities"). The Company also received $15,500 cash in the transaction from the acquisition of the Harvest entities. Prior to the transaction, the Company held a noncontrolling interest in the Harvest entities, with a combined carrying value for all entities of $4,303, and accounted for its ownership using the equity method of accounting. Following the transaction, the Company owns 100% of the equity interests of the Harvest entities including the rights that had been previously licensed to the Harvest entities by the Company. The Harvest entities did not meet the definition of a business and accordingly, the transaction was accounted for as an asset acquisition.
By reacquiring the rights previously licensed to the Harvest entities, the Company was relieved from its obligations under the original ECCs and therefore wrote off deferred revenue of $10,078 in September 2018 as part of the transaction. The remaining value acquired of $8,721 was considered in-process research and development related to the reacquired rights under the ECCs and expensed immediately.
See Note 12 for additional discussion of the convertible promissory notes.
GenVec Acquisition
In June 2017, pursuant to an Agreement and Plan of Merger (the "GenVec Merger Agreement"), the Company acquired 100% of the outstanding options forshares of GenVec, Inc. ("GenVec"), a clinical-stage company and pioneer in the development of AdenoVerse gene delivery technology. Pursuant to the GenVec Merger Agreement, the former shareholders of GenVec received an aggregate of 684,240 shares of the Company's common stock asand have the right to receive contingent consideration equal to 50% of January 9, 2017 were adjustedany milestone or royalty payments received under one of GenVec's collaboration agreements, provided such payments are received within three years after the closing of the transaction. The Company also assumed warrants held by certain former shareholders of GenVec. The results of GenVec's operations subsequent to reflect the acquisition date have been included in the consolidated financial statements.
The fair value of the distribution with respect tototal consideration transferred was $17,582. The acquisition date fair value of each class of consideration transferred is presented below:
Common shares$15,616
Warrants1,381
Contingent consideration585
 $17,582


The fair value of the shares of the Company's common stock by decreasingissued was based on the exercise prices and increasing the number outstanding options. This adjustment resulted in 46,766 additional outstanding options at a weighted average exercisequoted closing price of $31.11.
In June 2015, the Company distributed to its shareholders 17,830,305 shares of ZIOPHARM common stock, representing all of the equity interests of ZIOPHARM held by the Company at the time of the distribution and resulting in a realized gain of $81,401. The distribution constituted a dividend to shareholders of record as of June 4, 2015. In connection with the distribution, pursuant to the terms of the Company's equity incentive plans, the conversion terms of all outstanding options for shares of the Company's common stock as of June 4, 2015 were adjustedimmediately prior to reflect the value of the distribution with respect to shares of the Company's common stock by decreasing the exercise prices and increasing the number of shares. This adjustment resulted in 312,795 additional outstanding options at a weighted average exercise price of $25.40.
Components of Accumulated Other Comprehensive Loss
The components of accumulated other comprehensive loss are as follows:
 December 31,
 2017 2016
Unrealized loss on investments$(2) $(89)
Loss on foreign currency translation adjustments(15,552) (36,113)
Total accumulated other comprehensive loss$(15,554) $(36,202)
15. Share-Based Payments
The Company records the fair value of stock options issued to employees and non-employees as of the grant date as stock-based compensation expense. Stock-based compensation expense for employees and non-employees is recognized over the requisite service period, which is typically the vesting period. Stock-based compensation costs included in the consolidated statements of operations are presented below:
 Year Ended December 31,
 2017 2016 2015
Cost of products$116
 $81
 $95
Cost of services322
 274
 354
Research and development9,336
 9,251
 8,614
Selling, general and administrative31,802
 32,596
 29,604
Total$41,576
 $42,202
 $38,667
Intrexon Stock Option Plans
In April 2008, Intrexon adopted the 2008 Equity Incentive Plan (the "2008 Plan") for employees and nonemployees pursuant to which Intrexon's board of directors granted share based awards, including stock options, to officers, key employees and nonemployees. Upon the effectiveness of the 2013 Omnibus Incentive Plan (the "2013 Plan"), no new awards may be granted under the 2008 Plan. As of December 31, 2017, there were 453,371 stock options outstanding under the 2008 Plan.
Intrexon adopted the 2013 Plan for employees and nonemployees pursuant to which Intrexon's board of directors may grant share-based awards, including stock options, shares of common stock, and other share-based awards, to employees, officers,

consultants, advisors, and nonemployee directors. The 2013 Plan became effective upon the closing of the Company's initial public offering in August 2013, and as of December 31, 2017, there were 18,000,000 shares authorized for issuance under the 2013 Plan, of which 10,929,376 stock options were outstanding and 4,747,496 shares were available for grant.
Stock options may be granted with an exercise price equal to or greater than the stock's fair market value at the date of grant. Stock options may be granted with an exercise price less than the stock's fair market value at the date of grant if the stock options are replacement options in accordance with certain U.S. Treasury regulations. Virtually all stock options have ten-year terms and vest four years from the date of grant.
Stock option activity was as follows:
 Number of Shares Weighted Average Exercise Price Weighted Average Remaining Contractual Term (Years)
Balances at December 31, 20148,323,544
 $22.59
 8.64
Granted5,051,500
 45.82
  
Adjustment due to dividend (Note 14)312,795
 25.40
  
Exercised(1,029,291) (15.16)  
Forfeited(1,610,335) (26.75)  
Expired(4,685) (28.29)  
Balances at December 31, 201511,043,528
 32.66
 8.49
Granted4,644,860
 29.39
  
Exercised(1,210,840) (15.83)  
Forfeited(2,760,809) (40.34)  
Expired(76,356) (37.81)  
Balances at December 31, 201611,640,383
 31.25
 8.21
Granted3,920,950
 21.47
  
Adjustment due to dividend (Note 14)46,766
 31.11
  
Exercised(149,429) (6.37)  
Forfeited(3,797,105) (28.37)  
Expired(278,818) (33.18)  
Balances at December 31, 201711,382,747
 28.99
 7.32
Exercisable at December 31, 20175,306,697
 29.96
 6.14
Total unrecognized compensation costs related to unvested awards as of December 31, 2017 were $68,999, and are expected to be recognized over a weighted-average period of approximately two years.
The weighted average grant date fair value of options granted during 2017, 2016 and 2015 was $12.19, $16.28 and $25.96, respectively. The aggregate intrinsic value of options exercised during 2017, 2016 and 2015 was $2,429, $22,704 and $24,675, respectively. The aggregate intrinsic value of options is calculated as the difference between the exercise price of the underlying options and the fair value of Intrexon's common stock for those shares where the exercise price was lower than the fair value of Intrexon's common stock on the date of exercise.

The following table summarizes additional information about stock options outstanding as of December 31, 2017:
    Options Outstanding Options Exercisable
Range of Exercise Prices Number of Options Weighted Average Exercise Price Weighted Average Remaining Life (Years) Aggregate Intrinsic Value Number of Options Weighted Average Exercise Price Weighted Average Remaining Life (Years) Aggregate Intrinsic Value
$2.64
$9.30
 453,371
 $7.06
 3.94 $2,020
 453,371
 $7.06
 3.94 $2,020
$12.50
$21.38
 3,158,121
 20.58
 8.74 
 456,942
 19.52
 7.13 
$21.43
$28.81
 3,399,721
 25.55
 6.91 
 1,804,401
 25.86
 5.69 
$28.88
$40.99
 2,751,716
 32.07
 6.70 
 1,732,250
 31.51
 6.32 
$41.41
$65.08
 1,619,818
 53.52
 7.42 
 859,733
 53.07
 7.38 
    11,382,747
 $28.99
 7.32 $2,020
 5,306,697
 $29.96
 6.14 $2,020
The following table summarizes additional information about stock options outstanding as of December 31, 2016:
    Options Outstanding Options Exercisable
Range of Exercise Prices Number of Options Weighted Average Exercise Price Weighted Average Remaining Life (Years) Aggregate Intrinsic Value Number of Options Weighted Average Exercise Price Weighted Average Remaining Life (Years) Aggregate Intrinsic Value
$2.65
$9.34
 562,951
 $6.23
 4.13 $10,172
 525,755
 $6.01
 3.97 $9,615
$15.21
$27.19
 2,785,705
 23.47
 8.54 4,797
 684,704
 21.07
 7.29 2,237
$27.21
$29.68
 3,147,242
 29.30
 7.53 
 1,400,707
 29.35
 7.31 
$29.70
$42.22
 3,590,423
 32.89
 9.09 
 345,274
 37.06
 6.85 
$43.99
$65.34
 1,554,062
 54.40
 8.43 
 461,595
 53.06
 8.33 
    11,640,383
 $31.25
 8.21 $14,969
 3,418,035
 $28.09
 6.88 $11,852
Intrexon currently uses authorized and unissued shares to satisfy share award exercises.
In October 2015, the compensation committee and the independent members of Intrexon's board of directors approved a compensation arrangement whereby the Company's Chief Executive Officer ("CEO") would receive a monthly salary. Previously, the CEO did not receive compensation for his services as an employee of the Company other than through his participation in the Company's Annual Executive Incentive Plan which became effective January 1, 2015. Pursuant to the compensation agreement, the CEO receives a base salary of $200 per month payable in fully vested shares of Intrexon common stock with such shares subject to a three-year lock-up on resale. The monthly number of shares of common stock is calculated based on the closing price on the last trading day of each month and the shares are issued pursuant to the terms of a Restricted Stock Unit Agreement ("RSU Agreement") which was executed between Intrexon and the CEO pursuant to the terms of the 2013 Plan. The RSU Agreement became effective in November 2015 and had an initial term of twelve months. The independent members of Intrexon's board of directors, with the recommendation of the compensation committee of the board of directors, subsequently approved extensions of the RSU Agreement through March 31, 2018, all of which are on the same terms as the original RSU Agreement.acquisition. The fair value of the shares issued as compensationwarrants assumed was estimated using the Black-Scholes option-pricing model. The fair value of the contingent consideration was determined using a probability weighted discounted cash flows model and is considered a freestanding financial instrument and recorded at fair value each reporting period. The estimated fair value of assets acquired and liabilities assumed at the acquisition date is shown below:
Cash and cash equivalents$2,054
Short-term investments542
Trade receivables75
Other receivables97
Prepaid expenses and other227
Property and equipment250
Intangible assets14,000
Other noncurrent assets58
Total assets acquired17,303
Accounts payable2,158
Accrued compensation and benefits1,226
Other accrued expenses856
Other long-term liabilities92
Deferred tax liabilities239
Total liabilities assumed4,571
Net assets acquired12,732
Goodwill4,850
Total consideration$17,582

The acquired intangible assets include developed technology, the fair value of which was determined using the multi-period excess earning method, which is a variation of the income approach that converts future cash flows to single discounted present value amounts. The intangible assets are being amortized over a useful life of eleven years. Goodwill, which is not deductible for services istax purposes, represents the assembled workforce and the anticipated buyer-specific synergies arising from the combination of the Company's and GenVec's technology.
Acquisition-related costs totaling $507 are included in selling, general and administrative expenses in the Company's consolidated statements of operations for the years ended December 31, 2017, 2016 and 2015, and totaled $1,908, $1,861, and $314, respectively.
AquaBounty Stock Option Plans
In March 2016, AquaBounty's board of directors adopted the AquaBounty 2016 Equity Incentive Plan ("AquaBounty 2016 Plan") to replace the AquaBounty 2006 Equity Incentive Plan ("AquaBounty 2006 Plan"). The AquaBounty 2016 Plan provides for the issuance of incentive stock options, non-qualified stock options and awards of restricted and direct stock purchases to directors, officers, employees, and consultants of AquaBounty.  The AquaBounty 2016 Plan was approved by AquaBounty's shareholders at its annual meeting in April 2016. Upon the effectiveness of the AquaBounty 2016 Plan, no new awards may be granted under the AquaBounty 2006 Plan.

As of December 31, 2017, there were 227,203 options outstanding under both AquaBounty plans, of which 192,748 were exercisable, at a weighted average exercise price of $9.39 per share. As of December 31, 2016, there were 185,591 options outstanding under these plans, of which 181,766 were exercisable, at a weighted average exercise price of $7.89 per share.
16. License Agreement
In January 2015, the Company and ZIOPHARM jointly entered into a license agreement with the University of Texas System Board of Regents on behalf of the University of Texas MD Anderson Cancer Center ("MD Anderson") whereby the Company received an exclusive license to certain research and development technologies owned and licensed by MD Anderson, including technologies relating to novel chimeric antigen receptor (CAR) T-cell therapies, as well as co-licenses and non-exclusive licenses to certain other related technologies. ZIOPHARM received access to these technologies pursuant to the terms of the Company's ECC with ZIOPHARM. The Company issued 2,100,085 shares of its common stock valued at $59,579 to MD Anderson as consideration, which is included in research and development expenses in the accompanying consolidated statement of operations for the year ended December 31, 2015. Subject2017.
Unaudited Condensed Pro Forma Financial Information
GenVec's results of operations subsequent to the acquisition are included in the consolidated statements of operations. The following unaudited condensed pro forma financial information for the year ended December 31, 2017, is presented as if the acquisition had been consummated on January 1, 2016:
 Year Ended December 31,
 2017
 Pro Forma
Revenues$219,695
Loss from continuing operations before income taxes(85,633)
Net loss(134,275)
Net loss attributable to the noncontrolling interests9,802
Net loss attributable to Precigen(124,473)


5. Investments in Joint Ventures
Intrexon Energy Partners
In March 2014, the Company and certain investors (the "IEP Investors"), including an affiliate of Third Security, a related party, entered into a Limited Liability Company Agreement that governs the affairs and conduct of business of Intrexon Energy Partners, LLC ("Intrexon Energy Partners"), a JV formed to optimize and scale-up the Company's methane bioconversion platform technology for the production of certain fuels and lubricants. The Company also entered into an ECC with Intrexon Energy Partners providing exclusive rights to the Company's technology for the use in bioconversion for the production of certain fuels and lubricants, as a result of which the Company received a technology access fee of $25,000 while retaining a 50% membership interest in Intrexon Energy Partners. The IEP Investors made initial capital contributions, totaling $25,000 in the aggregate, in exchange for pro rata membership interests in Intrexon Energy Partners totaling 50%. In addition, Precigen has committed to make capital contributions of up to $25,000, and the IEP Investors, as a group and pro rata in accordance with their respective membership interests in Intrexon Energy Partners, have committed to make additional capital contributions of up to $25,000, at the request of Intrexon Energy Partners' board of managers (the "Intrexon Energy Partners Board") and subject to certain exceptions,limitations. As of December 31, 2019, the Company's remaining commitment was $4,225. Intrexon Energy Partners is governed by the Intrexon Energy Partners Board, which has 5 members. NaN members of the Intrexon Energy Partners Board are designated by the Company and 3 members are designated by a majority of the IEP Investors. The Company and the IEP Investors have the right, but not the obligation, to make additional capital contributions above the initial limits when and if solicited by the Intrexon Energy Partners Board.
The Company's investment in Intrexon Energy Partners was $(423) and $(656) as of December 31, 2019 and 2018, respectively, and is included in other accrued liabilities in the accompanying consolidated balance sheets, which represents the Company's equity in losses for contractually committed contributions to Intrexon Energy Partners.
Intrexon Energy Partners II
In December 2015, the Company and certain investors (the "IEPII Investors"), including Harvest, entered into a Limited Liability Company Agreement that governs the affairs and conduct of business of Intrexon Energy Partners II, LLC ("Intrexon Energy Partners II"), a JV formed to utilize the Company's methane bioconversion platform technology for the production of 1,4-butanediol, an industrial chemical used to manufacture spandex, polyurethane, plastics, and polyester. The Company also entered into an ECC with Intrexon Energy Partners II that provides exclusive rights to the Company's technology for use in the field, as a result of which the Company received a technology access fee of $18,000 while retaining a 50% membership interest in Intrexon Energy Partners II. The IEPII Investors made initial capital contributions, totaling $18,000 in the aggregate, in exchange for pro rata membership interests in Intrexon Energy Partners II totaling 50%. In December 2015, the owners of Intrexon Energy Partners II made a capital contribution of $4,000, half of which was paid by the Company. Precigen has committed to make additional capital contributions of up to $10,000, and the IEPII Investors, as a group and pro rata in accordance with their respective membership interests in Intrexon Energy Partners II, have committed to make additional capital contributions of up to $10,000, at the request of Intrexon Energy Partners II's board of managers (the "Intrexon Energy Partners II Board") and subject to certain limitations. As of December 31, 2019, the Company's remaining commitment was $10,000. Intrexon Energy Partners II is governed by the Intrexon Energy Partners II Board, which has 5 members. NaN member of the Intrexon Energy Partners II Board is designated by the Company and 4 members are designated by a majority of the IEPII Investors. The Company and the IEPII Investors have the right, but not the obligation, to make additional capital contributions above the initial limits when and if solicited by the Intrexon Energy Partners II Board.
The Company's investment in Intrexon Energy Partners II was $(435) and $(50) as of December 31, 2019 and 2018, respectively, and is included in other accrued liabilities in the accompanying consolidated balance sheets, which represents the Company's equity in losses for contractually committed contributions to Intrexon Energy Partners II.
Intrexon T1D Partners
In March 2016, the Company and certain investors (the "T1D Investors"), including affiliates of Third Security, entered into a Limited Liability Company Agreement that governs the affairs and conduct of business of Intrexon T1D Partners, LLC ("Intrexon T1D Partners"), a JV formed to utilize the Company's proprietary ActoBiotics platform to develop and commercialize products to treat type 1 diabetes. The Company also entered into an ECC with Intrexon T1D Partners that provided the exclusive rights to the Company's technology for use in the field, as a result of which the Company received a technology access fee of $10,000 while retaining a 50% membership interest in Intrexon T1D Partners. The T1D Investors made initial capital contributions, totaling $10,000 in the aggregate, in exchange for pro rata membership interests in Intrexon T1D Partners totaling 50%. Precigen committed to make capital contributions of up to $5,000, and the T1D Investors, as a group and pro rata in accordance with their respective membership interests in Intrexon T1D Partners, committed to make

additional capital contributions of up to $5,000, at the request of Intrexon T1D Partners' board of managers, which consisted of 2 members appointed by the Company and 3 members appointed by a majority of the T1D Investors. The Company satisfied its commitment in 2018.
In November 2018, the Company, together with its wholly owned subsidiary ActoBio, issued 1,933,737 shares of Precigen common stock valued at $18,970 to the T1D Investors to acquire their ownership interest in Intrexon T1D Partners. Following the transaction, the Company owns 100% of the membership interests in Intrexon T1D Partners, including the rights that had been previously licensed to Intrexon T1D Partners by the Company in the ECC. Intrexon T1D Partners did not meet the definition of a business, and accordingly, the transaction was accounted for as an asset acquisition. By reacquiring the rights previously licensed to Intrexon T1D Partners, the Company was relieved from its obligations under the original ECC and therefore wrote off $8,517 of deferred revenue in November 2018 as part of the transaction. The remaining value of $10,453 was considered in-process research and development related to the reacquired rights under the ECC and expensed immediately.
6. Collaboration and Licensing Revenue
The Company's collaborations and licensing agreements provide for multiple promises to be satisfied by the Company and typically include a license to the Company's technology platforms, participation in collaboration committees, and performance of certain research and development services. Based on the nature of the promises in the Company's collaboration and licensing agreements, the Company typically combines most of its promises into a single performance obligation because the promises are highly interrelated and not individually distinct. Options to acquire additional services are considered to determine if they constitute material rights. At contract inception, the transaction price is typically the upfront payment received and is allocated to the performance obligations. The Company has determined the transaction price should be recognized as revenue based on its measure of progress under the agreement primarily based on inputs necessary to fulfill the performance obligation.
See Note 2 for additional discussion of the Company's revenue recognition policy related to collaboration and licensing payments.
The Company determines whether collaborations and licensing agreements are individually significant for disclosure based on a number of factors, including total revenue recorded by the Company pursuant to collaboration and licensing agreements, collaborators or licensees with either majority-owned subsidiaries or equity method investments, or other qualitative factors. Collaboration and licensing revenues generated from consolidated subsidiaries are eliminated in consolidation. Amounts for periods subsequent to January 1, 2018 reflect revenue recognition under ASC 606.
The following table summarizes the amounts recorded as revenue from continuing operations in the consolidated statements of operations for each significant counterparty to a collaboration or licensing agreement for the years ended December 31, 2019, 2018 and 2017.
 Year Ended December 31,
 2019 2018 2017
ZIOPHARM Oncology, Inc.$2,171
 $16,298
 $69,812
Ares Trading S.A.
 11,175
 10,738
Oragenics, Inc.(564) 1,353
 1,469
Intrexon T1D Partners, LLC
 2,502
 5,968
Intrexon Energy Partners, LLC2,596
 6,929
 10,665
Intrexon Energy Partners II, LLC1,217
 2,998
 3,672
Fibrocell Science, Inc.3,713
 1,394
 7,344
OvaXon, LLC
 
 1,966
S & I Ophthalmic, LLC
 
 755
Harvest start-up entities (1)4,862
 14,447
 15,232
Other64
 12,444
 7,003
Total$14,059
 $69,540
 $134,624

(1)For the years ended December 31, 2019, 2018, and 2017, revenue recognized from collaborations with Harvest start-up entities include Exotech Bio, Inc.; AD Skincare, Inc.; and Thrive Agrobiotics, Inc. For the years ended December 31, 2018 and 2017, revenue recognized from collaborations with Harvest start-up entities also include Genten Therapeutics

and CRS Bio. For the year ended December 31, 2017, revenue recognized from collaborations with Harvest start-up entities also include Relieve Genetics.
The following is a summary of the terms of the Company's significant collaborations and licensing agreements from continuing operations.
ZIOPHARM Collaborations
In January 2011, the Company entered into an ECC with ZIOPHARM Oncology, Inc. ("ZIOPHARM"), a related party at the time. Pursuant to the ECC, ZIOPHARM received a license to the Company's technology platform within the field of oncology as defined more specifically in the agreement. Upon execution of the ECC, the Company received 3,636,926 shares of ZIOPHARM's common stock valued at $17,457 as upfront consideration. In addition to the promises discussed above, the Company transferred two clinical product candidates to ZIOPHARM for which $1,115 of the upfront consideration was allocated and recognized as collaboration revenue in 2011. The remaining $16,342 of upfront consideration was allocated to a single performance obligation as discussed above. The Company was entitled to additional shares of common stock at the date of the dosing of the first patient in a Phase II clinical trial of a product candidate created, produced or developed by ZIOPHARM using the Company's technology ("ZIOPHARM Milestone"). In October 2012, the ZIOPHARM Milestone was achieved and the Company received 3,636,926 shares of ZIOPHARM's common stock valued at $18,330 as milestone consideration. Upon adoption of ASC 606, the Company recorded a cumulative catch-up adjustment of $873 related to milestone consideration. The Company allocated the ZIOPHARM Milestone to the two performance obligations and recognized those in a manner similar to the discussion above. The Company received reimbursement payments for research and development services provided and manufacturing services for Company materials provided to ZIOPHARM during the ECC. In March 2015, in conjunction with the worldwide License and Collaboration Agreement ("Merck Agreement") with Ares Trading S.A. ("Ares Trading"), a wholly owned subsidiary of Merck KGaA, and ZIOPHARM discussed below, the Company and ZIOPHARM amended their existing ECC. The amendment modified the scope of the ECC in connection with the Merck Agreement and provided that the Company would pay to ZIOPHARM 50% of all payments received for upfront fees, milestones and royalties under the Merck Agreement. See discussion of the Merck Agreement below.
In September 2015, the Company entered into its second ECC with ZIOPHARM ("ZIOPHARM ECC 2"). Pursuant to the ECC, ZIOPHARM received a license to the Company's technology platform to develop and commercialize novel biotherapeutics for the treatment of patients with graft-versus-host disease. Upon execution of ZIOPHARM ECC 2, the Company received a technology access fee of $10,000. The Company received reimbursement payments for research and development services provided pursuant to the agreement during the ECC and manufacturing services for Company materials provided to ZIOPHARM during the ECC. In December 2017, the Company and ZIOPHARM mutually agreed to terminate ZIOPHARM ECC2 and accordingly, the Company recognized the remaining balance of the deferred revenue associated with ZIOPHARM ECC2 totaling $28,943.
In June 2016, the Company amended each of its two existing collaboration agreements with ZIOPHARM and as a result the rate of the royalty that the Company is entitled to receive on certain products commercialized pursuant to the agreements was reduced from 50% to 20%. As consideration for execution of the amendments, ZIOPHARM issued the Company 100,000 shares of ZIOPHARM's Series 1 Preferred Stock valued at $120,000. The Company allocated the consideration received to each ECC based on the cumulative value of upfront and milestone payments previously received pursuant to that ECC. Upon adoption of ASC 606, the Company recognized a cumulative catch-up adjustment of $32,422 as a result of the contract modification requiring a cumulative catch-up under ASC 606 versus prospective recognition under previous revenue recognition accounting standards. See Note 18 for additional discussion of the terms of the preferred stock and the accounting treatment.
In October 2018, the Company, through its wholly owned subsidiary PGEN Therapeutics, entered into alicense agreement expires(the "ZIOPHARM License Agreement") with ZIOPHARM, which terminated and replaced the terms of the original ZIOPHARM ECC, including the amendments thereto.  Pursuant to the terms of the ZIOPHARM License Agreement, the Company granted ZIOPHARM an exclusive, worldwide, royalty-bearing, sub-licensable license to research, develop and commercialize (i) products utilizing the Company's RheoSwitch gene switch ("RTS") to express IL-12 (the "IL-12 Products") for the treatment of cancer, (ii) chimeric antigen receptor ("CAR") products directed to (a) CD19 for the treatment of cancer (the "CD19 Products"), and (b) a second target, subject to the rights of the Company to pursue such target under the Merck Agreement, and (iii) T-cell receptor ("TCR") products (the "TCR Products") designed for neoantigens for the treatment of cancer or the treatment and prevention of human papilloma virus ("HPV") to the extent that the primary reason for such treatment or prevention is to prevent cancer, which is referred to as the HPV Field. The Company has also granted ZIOPHARM an exclusive, worldwide, royalty-bearing, sub-licensable license for certain patents relating to the Company's Sleeping Beauty technology to research, develop and commercialize TCR Products for both neoantigens and shared antigens for the treatment of

cancer and in the HPV Field. ZIOPHARM will be solely responsible for all aspects of the research, development and commercialization of the exclusively licensed products for the treatment of cancer. ZIOPHARM is required to use commercially reasonable efforts to develop and commercialize IL-12 Products and CD19 Products, and after a two-year period, the TCR Products. The Company also granted ZIOPHARM an exclusive, worldwide, royalty-bearing, sub-licensable license to research, develop and commercialize products utilizing an additional construct that expresses RTS IL-12 (the "Gorilla IL-12 Products") for the treatment of cancer and in the HPV Field. ZIOPHARM is responsible for all development costs associated with each of the licensed products, other than Gorilla IL-12 Products. ZIOPHARM and the Company will share the development costs and operating profits for Gorilla IL-12 Products, with ZIOPHARM responsible for 80% of the development costs and receiving 80% of the operating profits, as defined in the ZIOPHARM License Agreement, and the Company responsible for the remaining 20% of the development costs and receiving 20% of the operating profits, except that ZIOPHARM will bear all development costs and the Company will share equally in operating profits for Gorilla IL-12 Products in the HPV Field (the "Gorilla Program").
In consideration of the licenses and other rights granted by the Company, ZIOPHARM will pay the Company an annual license fee of $100 and agreed to reimburse the Company $1,000, paid in 4 quarterly installments, with respect to historical Gorilla IL-12 Products (the "historical Gorilla reimbursements"). ZIOPHARM will make milestone payments, payable upon the initiation of later stage clinical trials and upon the approval of exclusively licensed products in various jurisdictions, totaling up to an additional $52,500 for each of 4 exclusively licensed products, up to an aggregate of $210,000. In addition, ZIOPHARM will pay the Company tiered royalties ranging from low-single digits to high-single digits on the lastnet sales derived from the sales of any approved IL-12 Products and CAR products. ZIOPHARM will also pay the Company royalties ranging from low-single digits to mid-single digits on the net sales derived from the sales of any approved TCR Products, up to maximum royalty amount of $100,000 in the aggregate. ZIOPHARM will also pay the Company 20% of any sublicensing income received by ZIOPHARM relating to the licensed products.
The Company reacquired rights to research, develop and commercialize CAR products for all other targets. In addition, the Company may research, develop and commercialize products for the treatment of cancer, outside of the products exclusively licensed to ZIOPHARM.  The Company will pay ZIOPHARM royalties ranging from low-single digits to mid-single digits on the net sales derived from the sale of the Company's CAR products, up to $50,000. The Company also received from ZIOPHARM reimbursement of costs incurred to transition the necessary knowledge and materials for ZIOPHARM programs for a period of one year from the effective date (the "Transition Services").
As between the parties, the Company agreed to perform all of the obligations of ZIOPHARM under the Merck Agreement, other than an obligation of exclusivity thereunder and ZIOPHARM will remain responsible for all payments owed under the Merck Agreementwith respect to CD19 and the other target under the Merck Agreement as a result of ZIOPHARM's, its affiliates' or its sublicensees' exploitation of CAR products. Further, the Company is entitled to receive all rights and financial considerations with respect to all other CAR products, subject to the CAR royalties due to ZIOPHARM for such products. The ZIOPHARM License Agreement will terminate on a product-by-product and/or country-by-country basis upon the expiration of the later to occur of (i) the expiration of all patentsthe last to expire patent claim for a licensed thereunder,product, or (ii) 12 years after the twentieth anniversaryfirst commercial sale of a licensed product in such country. In addition, ZIOPHARM may terminate the ZIOPHARM License Agreement on a country-by-country or program-by-program basis following written notice to the Company, and either party may terminate the ZIOPHARM License Agreement following notice of a material breach.
Pursuant to the ZIOPHARM License Agreement, the 2016 Securities Issuance Agreement between the Company and ZIOPHARM was terminated as of the effective date of the ZIOPHARM License Agreement, all of the benefits, rights, obligations and liabilities thereunder immediately ceased and terminated and the Company returned to ZIOPHARM all of the preferred stock owned by the Company as of the Effective Date, which was valued at $158,376. See Note 18 for additional discussion of the preferred stock.
Prior to the execution of the ZIOPHARM License Agreement, the Company had $51,084 of deferred revenue remaining from the original ECC, which was related to the Company's obligations to perform under that agreement. Replacement of the original ECC with the ZIOPHARM License Agreement is a contract modification under ASC 606 that represents the termination of the original agreement and the creation of a new agreement as the remaining rights, obligations, and services to be exchanged, which are limited to the Transition Services, are distinct from those under the ECC. Therefore, the Company reviewed the various forms of consideration in the ZIOPHARM License Agreement to determine the transaction price. As the Company's obligations under the ZIOPHARM License Agreement are only related to the Transition Services and no other obligations under the ECC remain, a portion of the previously deferred revenue from the ECC should be relieved, which the Company determined to be $49,329, and the remaining $1,755 was included in the transaction price. The initial annual license payment of $100 was also included in the transaction price. The remaining annual license payments and potential milestone payments were constrained at the modification date and will only be recognized when the payments become probable of being

received. Royalty payments from sales of ZIOPHARM products developed pursuant to the ZIOPHARM License Agreement will be recognized when the sales occur. The Company recognized payments from Transition Services as those services were performed and recognized the transaction price of $1,855 as it performed the Transition Services required under the ZIOPHARM License Agreement.
The Company also reviewed the consideration paid and potential consideration to be paid to ZIOPHARM as part of the ZIOPHARM License Agreement, which includes the $158,376 of ZIOPHARM preferred stock returned by the Company and potential royalty payments to ZIOPHARM from sales of the Company's CAR products. The Company determined the exchange of its investment in ZIOPHARM preferred stock for certain CAR rights previously licensed under the ECC (i.e., in-process research and development) and the relief of performance obligations to ZIOPHARM under the ECC constituted an exchange for distinct goods and services. Therefore, the Company wrote off the $49,329 of relieved deferred revenue and recorded an expense of $109,047 for the reacquired in-process research and development. Potential royalty payments to ZIOPHARM will be expensed as incurred as they relate to distinct goods or services.
The Company determined that the Gorilla Program represents a separate collaboration agreement under the scope of ASC 808, Collaborative Arrangements, ("ASC 808") and will not be included in the accounting for the ZIOPHARM License Agreement under ASC 606. The Company recognized $500 of the historical Gorilla reimbursements on the contract modification date and recognized the remaining amounts when receipt became probable. The development costs and operating profits from the Gorilla Program will be recognized in accordance with ASC 808.
Merck Licensing Agreement
In March 2015, the Company signed the Merck Agreement with Ares Trading and ZIOPHARM through which the parties established a collaboration for the research and development and commercialization of certain products for the prophylactic, therapeutic, palliative or diagnostic use for cancer in humans. Pursuant to the Merck Agreement, the Company received a technology access fee of $115,000 as upfront consideration, of which $57,500 was paid to ZIOPHARM in accordance with the terms of the agreement. Upon the selection of the first 2 targets by Ares Trading, the Company received $10,000 in equal quarterly installments over two years.
In December 2018, the Company entered into a Securities Purchase, Assignment and Assumption Agreement (the "Merck Purchase Agreement") with Ares Trading pursuant to which the Company reacquired Ares Trading's development and commercialization rights under the Merck Agreement. As consideration for the reacquisition of the Merck Agreement, the Company issued Ares Trading 20,640,119 shares of Precigen common stock valued at $140,353 and agreed to pay Ares Trading a royalty of 10% of the net sales derived from two CAR products specified in the Merck Purchase Agreement. By reacquiring the rights previously licensed to Ares Trading, the Company is relieved of its obligations under the Merck Agreement and therefore wrote off deferred revenue of $31,826. The remaining value acquired of $108,527 was considered in-process research and development related to the reacquired rights under the Merck Agreement and expensed immediately. The potential future royalty payments to Ares Trading do not represent consideration paid to a customer and will be recorded when the payments are probable. See Note 12 for additional discussion of this transaction.
Oragenics Collaborations
In June 2015, the Company entered into an ECC with Oragenics. Pursuant to the ECC, at the transaction effective date, Oragenics received a license to the Company's technology platform within the field of biotherapeutics for use in certain treatments of oral mucositis and other diseases and conditions of the oral cavity, throat, and esophagus. Upon execution of the ECC, the Company received a technology access fee of a $5,000 convertible promissory note maturing on or before December 31, 2015 as upfront consideration. Prior to the maturity date, Oragenics had the right to convert the promissory note into shares of Oragenics' common stock, subject to its shareholders' approval. In December 2015, Oragenics converted the promissory note into 338,100 shares of Oragenics' common stock. These shares were sold in the TS Biotechnology Sale (Note 3). Following an amendment in November 2017, the Company is entitled to up to $37,500 of potential one-time payments for development and commercial milestones under the ECC. The Company receives reimbursement payments for research and development services provided pursuant to the agreement during the ECC and manufacturing services for Company materials provided to Oragenics during the ECC. Oragenics will pay the Company royalties as a percentage in the low-teens of net sales derived from the sale of products developed from the ECC, as defined in the agreement.
Oragenics is responsible for funding the further development of products under the ECC towards the goal of commercialization, conducting preclinical and clinical development of product candidates, as well as for other aspects of commercialization or manufacturing of the product candidates. The term of the ECC commenced in June 2015 and may be

terminated by either party in the event of certain material breaches defined in the agreement and may be terminated voluntarily by Oragenics upon 90 days written notice to the Company.
Intrexon T1D Partners Collaboration
In March 2016, the Company entered into an ECC with Intrexon T1D Partners, a JV between the Company and certain investors and a related party. Pursuant to the ECC, Intrexon T1D Partners received an exclusive license to the Company's technology platform to develop and commercialize products to treat type 1 diabetes. Upon execution of the ECC, the Company received a technology access fee of $10,000. The Company received reimbursement of research and development services provided pursuant to the ECC agreement. In November 2018, the Company completed an asset acquisition with the T1D Investors, resulting in the Company owning 100% of the membership interest of Intrexon T1D Partners including all rights under the ECC (Note 5).
Genten Therapeutics Collaboration
In September 2016, the Company entered into an ECC with Genten Therapeutics, an affiliate of Harvest and a related party. Genten Therapeutics was formed for the purpose of entering into the ECC and developing and commercializing products using the Company's technology for expression of gluten peptides, alone or in combination with immunomodulatory cytokines, to reestablish immune tolerance for patients with celiac disease. Upon execution of the ECC, the Company received a technology access fee in the form of a $1,500 cash payment and equity in Genten Therapeutics valued at $3,000 as upfront consideration. The Company received reimbursement payments for research and development services provided pursuant to the ECC. In September 2018, the Company completed an asset acquisition with Harvest, resulting in the Company owning 100% of the equity interests of Genten Therapeutics including all rights under the ECC (Note 4).
CRS Bio Collaboration
In September 2016, the Company entered into an ECC with CRS Bio, an affiliate of Harvest and a related party. CRS Bio was formed for the purpose of entering into the ECC and developing and commercializing products through targeted delivery of antibodies for treatment of chronic rhinosinusitis with and without nasal polyps, by utilizing the Company's technology to block inflammatory mediators in the nasal passage, leading to improved breathing and, importantly, patients' quality of life. Upon execution of the ECC, the Company received a technology access fee in the form of equity in CRS Bio valued at $2,100. The Company received reimbursement payments for research and development services provided pursuant to the ECC. In September 2018, the Company completed an asset acquisition with Harvest, resulting in the Company owning 100% of the equity interests of CRS Bio including all rights under the ECC (Note 4).
Relieve Genetics Collaboration
In March 2016, the Company entered into an ECC with Relieve Genetics, an affiliate of Harvest and a related party. Relieve Genetics was formed for the purpose of entering into the ECC and developing and commercializing products using a viral vector expressing interleukin-10 for the treatment of chronic neuropathic pain resultant from cancer in humans. Upon execution of the ECC, the Company received a technology access fee in the form of equity in Relieve Genetics valued at $4,333 as upfront consideration. The Company received reimbursement payments for research and development services provided pursuant to the ECC. In September 2018, the Company completed an asset acquisition with Harvest, resulting in the Company owning 100% of the equity interests of Relieve Genetics including all rights under the ECC (Note 4).
Intrexon Energy Partners Collaboration
In March 2014, the Company entered into an ECC with Intrexon Energy Partners, a JV between the Company and certain investors and a related party. The ECC grants Intrexon Energy Partners an exclusive license to the Company's technology platform to optimize and scale-up the Company's methane bioconversion platform for the production of certain fuels and lubricants. Upon execution of the ECC, the Company received a technology access fee of $25,000 as upfront consideration. The Company receives reimbursement payments for research and development services as provided for in the ECC agreement. The term of the ECC commenced in March 2014 and continues until March 2034 unless terminated prior to that date by either party in the event of certain material breaches defined in the agreement and may be terminated voluntarily by Intrexon Energy Partners upon 90 days written notice to the Company.

Intrexon Energy Partners II Collaboration
In December 2015, the Company entered into an ECC with Intrexon Energy Partners II, a JV between the Company and certain investors and a related party. Pursuant to the ECC, Intrexon Energy Partners II received an exclusive license to the Company's technology platform to optimize and scale-up the Company's methane bioconversion platform for the production of 1,4-butanediol (BDO), a key chemical intermediate that is used to manufacture spandex, polyurethane, plastics, and polyester. Upon execution of the ECC, the Company received a technology access fee of $18,000 and is entitled to reimbursement of research and development services as provided for in the ECC agreement. The term of the ECC commenced in December 2015 and continues until December 2035; termination prior to that date may be initiated (i) by either party in the event of certain material breaches defined in the agreement or (ii) may be terminated voluntarily by Intrexon Energy Partners II upon 90 days written notice to the Company.
Exotech Bio Collaboration
In March 2016, the Company entered into an ECC with Exotech Bio, Inc. ("Exotech Bio"), an affiliate of Harvest and a related party. Exotech Bio was formed for the purpose of entering into the ECC and developing and commercializing products using exosomes carrying a RNA payload designed to kill, suppress, or render immune-visible a cancer cell. Upon execution of the ECC, the Company received a technology access fee in the form of equity in Exotech Bio valued at $5,000 as upfront consideration. In June 2018, the Company and Exotech Bio amended the ECC, which resulted in the expansion of the defined field of use and the Company's ownership in Exotech Bio increasing to 49%. The amendment also eliminated potential future milestone payments and royalties for which the Company was previously entitled. The Company receives reimbursement payments for research and development services provided pursuant to the ECC. The ECC may be terminated by either party in the event of certain material breaches defined in the agreement and may be terminated voluntarily by Exotech Bio upon 90 days written notice to the Company.
AD Skincare Collaboration
In June 2016, the Company entered into an ECC with AD Skincare, Inc. ("AD Skincare"), an affiliate of Harvest and a related party. AD Skincare was formed for the purpose of entering into the ECC and developing an advanced topical delivery system to improve the efficacy of biologically active ingredients aimed at improving signs of aging human skin. Upon execution of the ECC, the Company received a technology access fee in the form of equity in AD Skincare valued at $4,333 as upfront consideration. The Company is also entitled to up to $2,000 of potential payments for substantive and non-substantive development milestones for each product developed under the ECC, as well as up to $17,000 in one-time commercial milestones. The Company receives reimbursement payments for research and development services provided pursuant to the ECC. AD Skincare will pay the Company royalties as a percentage in the low double-digits on the quarterly net sales of products developed under the ECC, as defined in the agreement. AD Skincare is responsible for the development and commercialization of the product candidates. The term of the ECC commenced in June 2016 and continues until terminated pursuant to the ECC agreement. The ECC may be terminated by either party in the event of certain material breaches defined in the agreement and may be terminated voluntarily by AD Skincare upon 90 days written notice to the Company.
Fibrocell Science Collaborations
In October 2012, the Company entered into an ECC ("Fibrocell ECC 1") with Fibrocell Science, Inc. ("Fibrocell"), a then publicly traded cell and gene therapy company focused on diseases affecting the skin and connective tissue and a related party until the acquisition of Fibrocell by a third party as discussed below. Pursuant to Fibrocell ECC 1, at the transaction effective date, Fibrocell received a license to the Company's technology platform to develop and commercialize genetically modified and non-genetically modified autologous fibroblasts and autologous dermal cells in the United States of America. Upon execution of Fibrocell ECC 1, the Company received a technology access fee of 87,835 shares of Fibrocell's common stock valued at $7,576 as upfront consideration. The Company receives reimbursement payments for research and development services provided pursuant to the agreement during Fibrocell ECC 1 and manufacturing services for Company materials provided to Fibrocell during Fibrocell ECC 1. On a quarterly basis, Fibrocell will pay the Company royalties of 7% of net sales up to $25,000 and 14% of net sales above $25,000 on each product developed from Fibrocell ECC 1, as defined in the agreement. If Fibrocell uses the Company's technology platform to improve the production of a current or new Fibrocell product not developed from Fibrocell ECC 1, Fibrocell will pay the Company quarterly royalties equal to 33% of the cost of goods sold savings generated by the improvement, as defined in the agreement.
Fibrocell is responsible for conducting preclinical and clinical development of product candidates associated with Fibrocell ECC 1, as well as for other aspects of commercialization and manufacturing of the product candidates. The term of the ECC commenced in October 2012 and continues until terminated pursuant to the ECC agreement. The ECC may be terminated by

either party in the event of certain material breaches defined in the agreement and may be terminated voluntarily by Fibrocell upon 90 days written notice to the Company.
In June 2013, the Company and Fibrocell entered into an amendment to the Fibrocell ECC 1. The amendment expanded the field of use defined in the ECC agreement. Under the terms of the amendment to the Fibrocell ECC 1, the Company received 82,919 shares of Fibrocell's common stock valued at $7,612 as a supplemental technology access fee.
In April 2019, Fibrocell entered into a collaboration agreement with a Castle Creek Pharmaceuticals, LLC to develop and commercialize a product in the field of the Fibrocell ECC 1. Pursuant to the terms of the Fibrocell ECC 1, the Company is entitled to 50% of sublicensing fees and accordingly, received $3,750 during the year ended December 31, 2019.
In December 2015, the Company entered into a second ECC with Fibrocell ("Fibrocell ECC 2"). Pursuant to the ECC, at the transaction effective date, Fibrocell received a license to the Company's technology platform to develop and commercialize genetically-modified fibroblasts to treat chronic inflammatory and degenerative diseases of the joint, including arthritis and related conditions. Upon execution of the ECC, the Company received a technology access fee of $10,000. The Company is also entitled to (i) up to $30,000 of potential one-time payments for certain development and regulatory milestones for the first product developed under Fibrocell ECC 2, (ii) up to $30,000 of potential payments for certain regulatory milestones for each additional product developed under Fibrocell ECC 2, and (iii) up to $22,500 of potential payments for certain sales milestones for each product developed under Fibrocell ECC 2. The Company receives reimbursement payments for research and development services provided pursuant to the agreement during the ECC and manufacturing services for Company materials provided to Fibrocell during the ECC. Fibrocell will pay the Company royalties as a percentage in the low double-digits of net sales derived from the sale of products developed from Fibrocell ECC 2, as defined in the agreement.
Fibrocell is responsible for conducting preclinical and clinical development of product candidates associated with Fibrocell ECC 2, as well as for other aspects of commercialization and manufacturing of the product candidates. The term of the ECC commenced in December 2015 and continues until terminated pursuant to the ECC agreement. The ECC may be terminated by either party in the event of certain material breaches defined in the agreement and may be terminated voluntarily by Fibrocell upon 90 days written notice to the Company.
In December 2019, Fibrocell was acquired by Castle Creek Pharmaceutical Holdings, Inc. ("Castle Creek"), a privately held company focused on developing medicine for rare genetic disorders. See Note 18 for further discussion of the impact of the Castle Creek acquisition on the Company's investments in Fibrocell.
Thrive Agrobiotics Collaboration
In September 2015, the Company entered into an ECC with Thrive Agrobiotics, Inc. ("Thrive Agrobiotics"), an affiliate of Harvest and a related party. Thrive Agrobiotics was formed for the purpose of entering into the ECC and developing and commercializing products to improve the overall growth and feed efficiency in piglets. Upon execution of the ECC, the Company received a technology access fee in the form of equity in Thrive Agrobiotics valued at $1,667 as upfront consideration. The Company is also entitled to up to $5,500 of potential payments for development and commercial milestones for each product developed under the ECC. The Company receives reimbursement payments for research and development services provided pursuant to the agreement during the ECC. Thrive Agrobiotics will pay the Company royalties as a percentage in the lower-double digits on the quarterly gross profits of product sales from products developed under the ECC, as defined in the agreement. Thrive Agrobiotics is responsible for the development and commercialization of the product candidates. The term of the ECC commenced in September 2015 and continues until terminated pursuant to the ECC agreement. The ECC may be terminated by either party in the event of certain material breaches defined in the agreement and may be terminated voluntarily by Thrive Agrobiotics upon 90 days written notice to the Company.

Deferred Revenue
Deferred revenue primarily consists of consideration received for the Company's collaboration and licensing agreements. Deferred revenue from continuing operations consists of the following:
 December 31,
 2019 2018
Collaboration and licensing agreements$50,593
 $54,323
Prepaid product and service revenues2,805
 2,933
Other435
 560
Total$53,833
 $57,816
Current portion of deferred revenue$5,697
 $11,088
Long-term portion of deferred revenue48,136
 46,728
Total$53,833
 $57,816

The following table summarizes the remaining balance of deferred revenue from continuing operations associated with upfront and milestone payments for each significant counterparty to a collaboration or licensing agreement as of December 31, 2019 and 2018, including the estimated remaining performance period as of December 31, 2019.
 Average Remaining Performance Period (Years) December 31,
  2019 2018
ZIOPHARM Oncology, Inc.0.0 $
 $1,214
Oragenics, Inc.4.4 2,864
 1,785
Intrexon Energy Partners, LLC4.2 8,362
 10,267
Intrexon Energy Partners II, LLC4.9 12,843
 14,060
Fibrocell Science, Inc.4.9 17,697
 17,519
Harvest start-up entities (1)5.2 6,993
 7,644
Other2.8 1,834
 1,834
Total  $50,593
 $54,323

(1)As of December 31, 2019 and 2018, the balance of deferred revenue for collaborations with Harvest start-up entities includes Exotech Bio, AD Skincare, and Thrive Agrobiotics.
7. Short-term Investments
The Company's investments are classified as available-for-sale. The following table summarizes the amortized cost, gross unrealized gains and losses, and fair value of available-for-sale investments as of December 31, 2019:
 
Amortized
Cost
 
Gross
Unrealized
Gains
 
Gross
Unrealized
Losses
 
Aggregate
Fair Value
United States government debt securities$8,989
 $7
 $
 $8,996
Certificates of deposit264
 
 
 264
Total$9,253
 $7
 $
 $9,260


The following table summarizes the amortized cost, gross unrealized gains and losses, and fair value of available-for-sale investments as of December 31, 2018:
 
Amortized
Cost
 
Gross
Unrealized
Gains
 
Gross
Unrealized
Losses
 
Aggregate
Fair Value
United States government debt securities$119,401
 $
 $(61) $119,340
Certificates of deposit274
 
 
 274
Total$119,675
 $
 $(61) $119,614

See Notes 2 and 8 for further discussion on the Company's method for determining the fair value of its assets.
As of December 31, 2019, all of the available-for-sale investments were due within one year based on their contractual maturities.
Changes in market interest rates and bond yields cause certain investments to fall below their cost basis, resulting in unrealized losses on investments. The unrealized losses of the Company's investments as of December 31, 2018 were primarily a result of unfavorable changes in interest rates subsequent to the initial purchase of these investments, and there were none as of December 31, 2019.
As of December 31, 2018, the Company did not consider any of its debt security investments to be other-than-temporarily impaired. When evaluating its debt security investments for other-than-temporary impairment, the Company reviews factors such as the length of time and extent to which fair value has been below its cost basis, the financial condition of the issuer, the Company's ability and intent to hold the security and whether it is more likely than not that it will be required to sell the investment before recovery of its cost basis.
8. Fair Value Measurements
The carrying amount of cash and cash equivalents, restricted cash, receivables, accounts payable, accrued compensation and benefits, other accrued liabilities, and related party payables approximate fair value due to the short maturity of these instruments.
Assets
The following table presents the placement in the fair value hierarchy of financial assets that are measured at fair value on a recurring basis, including the items for which the fair value option has been elected, as of December 31, 2019:
 
Quoted Prices in Active Markets
(Level 1)
 
Significant Other Observable Inputs
(Level 2)
 
Significant Unobservable Inputs
(Level 3)
 December 31,
2019
Assets       
United States government debt securities$
 $8,996
 $
 $8,996
Other
 264
 
 264
Total$
 $9,260
 $
 $9,260

The following table presents the placement in the fair value hierarchy of financial assets that are measured at fair value on a recurring basis, including the items for which the fair value option has been elected, as of December 31, 2018:
 
Quoted Prices in Active Markets
(Level 1)
 
Significant Other Observable Inputs
(Level 2)
 
Significant Unobservable Inputs
(Level 3)
 December 31,
2018
Assets       
United States government debt securities$
 $119,340
 $
 $119,340
Equity securities950
 74
 
 1,024
Other
 394
 191
 585
Total$950
 $119,808
 $191
 $120,949

The method used to estimate the fair value of the Level 1 assets in the tables above is based on observable market data as these equity securities are publicly-traded. The method used to estimate the fair value of the Level 2 short-term debt investments in the tables above is based on professional pricing sources for identical or comparable instruments, rather than direct observations of quoted prices in active markets. The methods used to estimate the fair value of the Level 2 equity securities in the tables above are based on the quoted market price of the publicly-traded security, adjusted for adjusted for a discount for lack of marketability. The Company owned preferred stock in certain of its collaborators, and these investments were classified as Level 3 within the fair value hierarchy. See Note 18 for additional discussion of these investments in preferred stock.
The following table summarizes the changes in the Level 3 investments during the years ended December 31, 2019 and 2018.
 2019 2018
Beginning balance$191
 $161,225
Retained interest in deconsolidated subsidiary14,239
 
Dividend income from investments in preferred stock48
 14,841
Net unrealized appreciation (depreciation) in the fair value of the investments in equity securities and preferred stock7,446
 (17,499)
Return of preferred stock
 (158,376)
Proceeds from sale of equity securities(21,587) 
Proceeds to be received from preferred stock(337) 
Ending balance$
 $191

There were no transfers of assets between levels of the fair value hierarchy during the year ended December 31, 2019.
Liabilities
The carrying values of the Company's long-term debt, excluding the Convertible Notes, approximates fair value due to the length of time to maturity and/or the existence of interest rates that approximate prevailing market rates.
The calculated fair value of the Convertible Notes (Note 12) was approximately $126,000 and $141,000 as of December 31, 2019 and 2018, respectively, and is based on the recent third-party trades of the instrument as of the balance sheet dates. The fair value of the Convertible Notes is classified as Level 2 within the fair value hierarchy as there is not an active market for the Convertible Notes, however, third-party trades of the instrument are considered observable inputs. The Convertible Notes are reflected on the accompanying consolidated balance sheets at amortized cost, which was $157,560 and $148,101 as of December 31, 2019 and 2018, respectively.
The Company's contingent consideration liabilities (Note 4) are measured on a recurring basis and were $585 as of December 31, 2019 and 2018. These fair value measurements were based on significant inputs not observable in the market and thus represented a Level 3 measurement. A significant change in unobservable inputs could result in a significant impact on the fair value of the Company's contingent consideration liabilities. The contingent consideration liabilities are remeasured to fair

value at each reporting date until the contingencies are resolved, and those changes in fair value are recognized in earnings. There were no changes in the fair value of the Level 3 liabilities during the years ended December 31, 2019 and 2018.
9. Inventory
Inventory from continuing operations consists of the following:
 December 31,
 2019 2018
Supplies, embryos and other production materials$2,282
 $3,857
Work in process3,702
 4,391
Livestock7,553
 10,167
Feed2,560
 2,160
Total inventory$16,097
 $20,575

10. Property, Plant and Equipment, Net
Property, plant and equipment consist of the following:
 December 31,
 2019 2018
Land and land improvements$9,814
 $10,001
Buildings and building improvements11,765
 20,099
Furniture and fixtures1,315
 1,812
Equipment54,448
 63,947
Leasehold improvements12,821
 14,219
Breeding stock5,191
 4,582
Computer hardware and software9,434
 10,789
Construction and other assets in progress5,313
 10,497
 110,101
 135,946
Less: Accumulated depreciation and amortization(49,132) (49,050)
Property, plant and equipment, net$60,969
 $86,896

The deconsolidation of AquaBounty (Note 1) in April 2019 resulted in the reduction of $24,186 of property, plant and equipment, net on the accompanying consolidated balance sheet during the year ended December 31, 2019.
During the year ended December 31, 2019, the Company recorded $448 of property, plant and equipment impairment losses in conjunction with the closing of 2 of its operating units during the third quarter of 2019.
Depreciation expense was $11,869, $12,439 and $10,137 for the years ended December 31, 2019, 2018 and 2017, respectively.
11. Goodwill and Intangible Assets, Net
The changes in the carrying amount of goodwill for the years ended December 31, 2019 and 2018, are as follows:
 2019 2018
Beginning of year$93,627
 $93,751
Impairment(29,820) 
Foreign currency translation adjustments(53) (124)
End of year$63,754
 $93,627

The Company had $43,643 and $13,823 of cumulative impairment losses as of December 31, 2019 and 2018, respectively.

For the year ended December 31, 2019, the Company recorded $29,820 of goodwill impairment charges. During the Company's annual goodwill impairment test, the Company determined it was more-likely-than-not that the fair value of the Trans Ova reporting unit was less than its carrying amount. As a result, the Company compared the carrying amount of the Trans Ova reporting unit to the fair value and determined the carrying amount exceeded the fair value resulting in a $29,642 goodwill impairment charge for the excess carrying value. Additionally, the Company recorded $178 of goodwill impairment charges in conjunction with the closing of 2 of its reporting units in the third quarter of 2019.
See Note 20 for information regarding goodwill by reportable segment.
Intangible assets consist of the following as of December 31, 2019:
 Weighted Average Useful Life (Years) Gross Carrying Amount Accumulated Amortization Net
Patents, developed technologies and know-how15.8 $90,659
 $(26,619) $64,040
Customer relationships6.5 10,700
 (8,440) 2,260
Trademarks8.4 5,900
 (3,854) 2,046
Total  $107,259
 $(38,913) $68,346

Intangible assets consist of the following as of December 31, 2018:
 Gross Carrying Amount Accumulated Amortization Net
Patents, developed technologies and know-how$106,042
 $(23,674) $82,368
Customer relationships10,700
 (7,565) 3,135
Trademarks6,800
 (3,341) 3,459
Total$123,542
 $(34,580) $88,962

In the fourth quarter of 2018, the Company recorded a $16,027 loss related to the abandonment of certain developed technologies that the Company ceased using in the fourth quarter of 2018. The Company does not expect to use these technologies as a defensive asset or market them for sale in the future. Because these technologies were used in combination with other technologies, the identifiable cash flows did not result in an impairment; however, because the Company made a decision to abandon the assets, it recorded the charge to research and development expense.
The deconsolidation of AquaBounty (Note 1) in April 2019 resulted in the reduction of $11,567 of net intangible assets, primarily related to patents, developed technologies, and know-how, on the accompanying consolidated balance sheet during the year ended December 31, 2019.
Amortization expense was $7,920, $11,666 and $11,472 for the years ended December 31, 2019, 2018 and 2017, respectively. Estimated aggregate amortization expense for definite lived intangible assets is expected to be as follows:
2020$7,501
20217,313
20226,518
20235,350
20245,066
Thereafter36,598
Total$68,346


12. Lines of Credit and Long-Term Debt
Lines of Credit
Trans Ova has a $5,000 revolving line of credit with First National Bank of Omaha that matures on April 1, 2020. The line of credit bears interest at the greater of 2.95% above the London Interbank Offered Rate or 3.00%, and the actual rate was 4.76% as of December 31, 2019. As of December 31, 2019, there was an outstanding balance of $1,695. The amount available under the line of credit is based on eligible accounts receivable and inventory up to the maximum principal amount, and was $3,235 as of December 31, 2019. The line of credit is collateralized by certain of Trans Ova's assets and contains certain restricted covenants that include maintaining minimum tangible net worth and working capital and maximum allowable annual capital expenditures. Trans Ova was in compliance with these covenants as of December 31, 2019.
Exemplar has a $700 revolving line of credit with American State Bank that matures on October 31, 2020. The line of credit bears interest at 5.50% per annum. As of December 31, 2019, there was an outstanding balance of $227.
Long-Term Debt
Long-term debt consists of the following:
 December 31,
 2019 2018
Convertible debt$213,771
 $203,391
Notes payable4,089
 4,551
Other131
 3,753
Long-term debt217,991
 211,695
Less current portion31,670
 479
Long-term debt, less current portion$186,321
 $211,216

The deconsolidation of AquaBounty (Note 1) in April 2019 resulted in the reduction of $4,030 of long-term debt on the accompanying consolidated balance sheet during the year ended December 31, 2019.
Convertible Debt
Precigen Convertible Notes
In July 2018, Precigen completed a registered underwritten public offering of $200,000 aggregate principal amount of Convertible Notes and issued the Convertible Notes under an indenture (the "Base Indenture") between Precigen and The Bank of New York Mellon Trust Company, N.A., as trustee, as supplemented by the First Supplemental Indenture (together with the Base Indenture, the "Indenture"). Precigen received net proceeds of $193,958 after deducting underwriting discounts and offering expenses of $6,042.
The Convertible Notes are senior unsecured obligations of Precigen and bear interest at a rate of 3.50% per year, payable semiannually in arrears on January 1 and July 1 of each year beginning on January 1, 2019. The Convertible Notes mature on July 1, 2023, unless earlier repurchased or converted. The Convertible Notes are convertible into cash, shares of Precigen's common stock or a combination of cash and shares, at Precigen's election. The initial conversion rate of the Convertible Notes is 58.6622 shares of Precigen common stock per $1,000 principal amount of Convertible Notes (equivalent to an initial conversion price of approximately $17.05 per share of common stock). The conversion rate is subject to adjustment upon the occurrence of certain events, but will not be adjusted for any accrued and unpaid interest. In addition, following certain corporate events that occur prior to the maturity date as defined in the Indenture, Precigen will increase the conversion rate for a holder who elects to convert its Convertible Notes in connection with such a corporate event in certain circumstances. Prior to April 1, 2023, the holders may convert the Convertible Notes at their option only upon the satisfaction of the following circumstances:
During any calendar quarter commencing after the calendar quarter ended on September 30, 2018, if the last reported sales price of Precigen's common stock for at least 20 trading days (whether or not consecutive) during the last 30 consecutive trading days of the immediately preceding calendar quarter is greater than or equal to 130% of the conversion price on each applicable trading day;

During the 5 business day period after any 5 consecutive trading day period in which the trading price, as defined in the Indenture, for the Convertible Notes is less than 98% of the product of the last reported sales price of Precigen's common stock and the conversion rate for the Convertible Notes on each such trading day; or
Upon the occurrence of specified corporate events as defined in the Indenture.
None of the above events allowing for conversion prior to April 1, 2023 occurred during the year ended December 31, 2019. On or after April 1, 2023 until June 30, 2023, holders may convert their Convertible Notes at any time. Precigen may not redeem the Convertible Notes prior to the maturity date.
If Precigen undergoes a fundamental change, as defined in the Indenture, holders of the Convertible Notes may require Precigen to repurchase for cash all or any portion of their Convertible Notes at a fundamental change repurchase price equal to 100% of the principal amount of the Convertible Notes to be repurchased, plus accrued and unpaid interest to, but excluding, the fundamental change repurchase date. The Indenture contains customary events of default, as defined in the agreement, and, if any of the events occur, could require repayment of a portion or all of the Convertible Notes, including accrued and unpaid interest. Additionally, the Indenture provides that Precigen shall not consolidate with or merge with or into, or sell, convey, transfer or lease all or substantially all of its properties and assets to, another entity, unless (i) the surviving entity is organized under the laws of the United States and such entity expressly assumes all of Precigen's obligations under the Convertible Notes and the Indenture; and (ii) immediately after such transaction, no default or event of default has occurred and is continuing under the Indenture.
The net proceeds received from the issuance of the Convertible Notes were initially allocated between long-term debt, the liability component, in the amount of $143,723, and additional paid-in capital, the equity component, in the amount of $50,235. Additional paid-in capital was further reduced by $13,367 of deferred taxes resulting from the difference between the carrying amount and the tax basis of the Convertible Notes that is created by the equity component, which also resulted in deferred tax benefit recognized from the reversal of valuation allowances on the then current year domestic operating losses in the same amount (Note 13). As of December 31, 2019, the outstanding principal balance on the Convertible Notes was $200,000 and the carrying value of long-term debt was $157,560. The effective interest rate on the Convertible Notes, including amortization of the long-term debt discount and debt issuance costs, is 11.02%. As of December 31, 2019, the unamortized long-term debt discount and debt issuance costs totaled $42,440.
The components of interest expense related to the Convertible Notes were as follows:
 Year Ended December 31,
 2019 2018
Cash interest expense$7,000
 $3,462
Non-cash interest expense9,459
 4,378
Total interest expense$16,459
 $7,840

Accrued interest of $3,500 is included in other accrued liabilities on the accompanying consolidated balance sheet as of December 31, 2019.
ActoBio Convertible Notes
In September 2018, ActoBio issued $30,000 of convertible promissory notes (the "ActoBio Notes") to a related party in conjunction with an asset acquisition with Harvest (Note 4). The ActoBio Notes have a maturity date of September 6, 2020, accrue interest at 3.0% compounded annually ("accrued PIK interest"), are convertible into shares of ActoBio common stock at any time by the holder, and are automatically convertible in shares of ActoBio common stock upon the closing of certain financing events as defined in the ActoBio Notes. If the ActoBio Notes have not been converted to ActoBio common stock by the maturity date, ActoBio can pay the principal and accrued PIK interest in cash or with shares of Precigen common stock at its election. There are no embedded features that are required to be separated from the debt host and accounted for separately, so the ActoBio Notes were recorded at $30,000. Interest expense was $921 and $290 for the years ended December 31, 2019 and 2018, respectively. As of December 31, 2019, the carrying value of the ActoBio Notes, including accrued interest, was $31,211.

Precigen and PGEN Therapeutics Convertible Note
In December 2018, in conjunction with the Merck Purchase Agreement (Note 6), Precigen and PGEN Therapeutics jointly and severally issued a $25,000 convertible note (the "Merck Note") to Ares Trading in exchange for cash. The Merck Note has a maturity date of June 28, 2021 and will be converted to Precigen common stock on the first trading day following maturity if not otherwise converted prior to that date. Prior to maturity, Ares Trading may convert the Merck Note, at their election, into (i) Precigen common stock at any time, (ii) Precigen common stock upon the Company's closing of qualified financing as defined in the agreement, (iii) PGEN Therapeutics equity upon PGEN Therapeutics closing a qualified financing as defined in the agreement, and (iv) PGEN Therapeutics common stock upon the closing of a qualified initial public offering ("IPO") of PGEN Therapeutics common stock. In the event of a conversion upon a qualified IPO, the conversion price will be 90% of the IPO price. There is no stated interest rate on the Merck Note. However, in the event Ares Trading elects to convert the Merck Note into PGEN Therapeutics equity, the Merck Note accrues interest at a rate of 5% per year ("PIK interest") and will be converted with the outstanding principal. The Company determined that the potential PIK interest and IPO conversion discount represented embedded derivatives requiring bifurcation from the debt host but had no significant value as of December 31, 2019.
Notes Payable
Trans Ova has a note payable to American State Bank that matures in April 2033 and had an outstanding principal balance of $4,077 as of December 31, 2019. Trans Ova pays monthly installments of $39, which includes interest at 3.95%. The note payable is collateralized by certain of Trans Ova's real estate and non-real estate assets.
Future Maturities
Future maturities of long-term debt are as follows:
2020$31,670
202125,328
2022341
2023200,355
2024369
Thereafter2,368
Total$260,431

13. Income Taxes
The components of loss from continuing operations before income taxes are presented below:
 Year Ended December 31,
 2019 2018 2017
Domestic$(205,413) $(428,410) $(24,965)
Foreign(3,274) (1,332) (53,402)
Loss from continuing operations before income taxes$(208,687) $(429,742) $(78,367)


The components of income tax expense (benefit) from continuing operations are presented below:
 Year Ended December 31,
 2019 2018 2017
United States federal income taxes:     
Current$
 $(31) $27
Deferred(561) (11,855) (523)
Foreign income taxes:     
Current34
 68
 (4)
Deferred(230) 635
 2,308
State income taxes:     
Current
 113
 
Deferred(173) (4,355) 264
Income tax expense (benefit) from continuing operations$(930) $(15,425) $2,072

Income tax expense (benefit) from continuing operations for the years ended December 31, 2019, 2018 and 2017 differed from amounts computed by applying the applicable United States federal corporate income tax rate of 21% for 2019 and 2018, and 34% for 2017, to loss before income taxes as a result of the following:
 2019 2018 2017
Computed statutory income tax benefit from continuing operations$(43,824) $(90,246) $(26,645)
State and provincial income tax benefit, net of federal income taxes(7,298) (23,347) (1,888)
Nondeductible stock based compensation10,303
 4,696
 3,391
Nondeductible officer compensation595
 294
 476
Gain on dividend distribution of AquaBounty common stock
 
 3,965
Impairment of goodwill273
 
 4,700
Research and development tax incentives(1,772) (185) (359)
Acquisition and internal restructuring transaction costs260
 52
 354
Provisional impact of the Tax Act
 
 85,288
Enacted changes in foreign tax rates and foreign tax reforms
 
 2,021
Reacquired in-process research and development
 2,696
 
Change in deferred state tax rate
 8,666
 
United States-foreign rate differential(76) 215
 410
Other, net(72) (3,517) (189)
 (41,611) (100,676) 71,524
Change in valuation allowance for deferred tax assets40,681
 85,251
 (69,452)
Total income tax expense (benefit) from continuing operations$(930) $(15,425) $2,072


The tax effects of temporary differences that comprise the deferred tax assets and liabilities included in continuing operations as of December 31, 2019 and 2018, are as follows:
 2019 2018
Deferred tax assets   
Allowance for doubtful accounts$2,140
 $1,490
Inventory415
 614
Equity securities and investments in affiliates11,933
 30,241
Property, plant and equipment1,830
 
Intangible assets85,308
 78,858
Accrued liabilities3,385
 4,412
Lease liabilities10,035
 
Stock-based compensation19,389
 28,885
Deferred revenue14,876
 16,297
Research and development tax credits9,686
 10,558
Investments in subsidiaries included in discontinued operations8,592
 
Net operating and capital loss carryforwards196,663
 129,291
Total deferred tax assets364,252
 300,646
Less: Valuation allowance349,008
 292,217
Net deferred tax assets15,244
 8,429
Deferred tax liabilities   
Property, plant and equipment
 149
Right-of-use assets8,091
 
Intangible assets
 
Long-term debt9,987
 12,136
Total deferred tax liabilities18,078
 12,285
Net deferred tax liabilities included in continuing operations$(2,834) $(3,856)

Activity within the valuation allowance for deferred tax assets included in continuing operations during the years ended December 31, 2019, 2018 and 2017 was as follows:
 2019 2018 2017
Valuation allowance at beginning of year$292,217
 $211,078
 $253,549
Increase (decrease) in valuation allowance as a result of     
Mergers and acquisitions, net
 418
 
Deconsolidation of AquaBounty(3,504) 
 
Establishment of deferred taxes for subsidiaries included in discontinued operations8,592
 
 
Current year continuing operations40,681
 107,284
 17,735
Discontinued operations treated as asset sales10,585
 3,832
 6,940
Adoption of ASC 842512
 
 
Adoption of ASC 606
 (7,477) 
Adoption of ASU 2016-09
 
 17,843
Provisional impact of the Tax Act
 
 (87,473)
Equity component of long-term debt
 (13,367) 
Change in deferred state tax rate
 (8,666) 
Changes in foreign tax rates and foreign tax reforms
 
 1,494
Foreign currency translation adjustment(75) (885) 990
Valuation allowance at end of year$349,008
 $292,217
 $211,078


In assessing the realizability of deferred tax assets, management considers whether it is more likely than not that some portion or all of the deferred tax assets will not be realized. The ultimate realization of deferred tax assets is dependent upon the generation of future taxable income during the periods in which those temporary differences become deductible. Management considers the scheduled reversal of deferred tax liabilities, projected future taxable income and tax planning strategies in making this assessment. Due to the Company and its subsidiaries' histories of net losses incurred from inception, any corresponding net domestic and certain foreign deferred tax assets have been fully reserved as the Company and its subsidiaries cannot sufficiently be assured that these deferred tax assets will be realized. The components of the deferred tax assets and liabilities as of the date of the license agreement.mergers and acquisitions by the Company prior to consideration of the valuation allowance are substantially similar to the components of deferred tax assets presented herein.
The Company's past issuances of stock and mergers and acquisitions have resulted in ownership changes as defined in Section 382 of the Internal Revenue Code of 1986, as amended ("Section 382"). As a result, utilization of portions of the net operating losses may be subject to annual limitations, however as of December 31, 2019, all such limited losses applicable to Precigen, other than losses inherited via acquisition, have been fully utilized. As of December 31, 2019, approximately $42,100 of the Company's domestic net operating losses were inherited via acquisition, including $13,376 acquired via the acquisition of GenVec, and are limited based on the value of the target at the time of the transaction.
As of December 31, 2019, the Company has net operating loss carryforwards for United States federal income tax purposes of approximately $568,800 available to offset future taxable income, including approximately $316,100 generated after 2017, United States capital loss carryforwards of approximately $111,600, and federal and state research and development tax credits of approximately $9,600, prior to consideration of annual limitations that may be imposed under Section 382. Net operating loss carryforwards generated prior to 2018 will begin to expire in 2022, and capital loss carryforwards will expire if unutilized by 2024. The Company's foreign subsidiaries included in continuing operations have foreign loss carryforwards of approximately $72,800, most of which do not expire.
As of December 31, 2019, the Company's direct foreign subsidiaries included in continuing operations had accumulated deficits of approximately $14,900. Future distributions of accumulated earnings of the Company's direct foreign subsidiaries may be subject to United States income and foreign withholding taxes.
In connection with the license agreement,year ended December 31, 2017, the Company ZIOPHARM,recorded a net provisional income tax benefit of $2,185 upon enactment of the Tax Act, which is comprised of several items. Amounts related to the remeasurement of most of the Company's domestic deferred tax assets as a result of the United States corporate rate change to 21% as part of the Tax Act are $87,473, which was fully offset by a reduction in the Company's valuation allowance. The Company's net United States deferred tax liability that is not offset by a valuation allowance was similarly written down, and MD Andersonthe Company recorded a provisional deferred tax benefit of $1,730. The Company also recorded a provisional current tax benefit of $455 related to the expected refundability of accumulated corporate alternative minimum tax credits. The Company provisionally estimated its transition tax exposure to be 0, as any accumulated earnings in foreign subsidiaries are offset by accumulated deficits in other foreign subsidiaries. The Company completed its accounting for the Tax Act in the fourth quarter of 2018, and there were no significant adjustments to the previously recorded provisional amounts.
Additionally, in December 2017, Belgium enacted significant tax reform measures, the most significant of which to the Company is the limitation on the utilization of accumulated losses in years after 2017. After that date, loss carryforwards can only be used to offset 70% of taxable income that exceeds a certain threshold. As a result, the Company recorded adjustments to its net deferred tax assets and valuation allowances. These adjustments resulted in a net deferred tax liability of $2,307, which was recorded as a component of deferred tax expense for the year ended December 31, 2017.
The Company and its subsidiaries do not have material unrecognized tax benefits as of December 31, 2019. The Company does not anticipate significant changes in the amount of unrecognized tax benefits in the next 12 months. The Company's tax returns for years 2004 and forward are subject to examination by federal or state tax authorities due to the carryforward of unutilized net operating and capital losses and research and development tax credits.
14. Shareholders' Equity
Issuances of Precigen Common Stock
In January 2018, Precigen closed a public offering of 6,900,000 shares of its common stock, including 1,000,000 shares of common stock purchased by affiliates of Third Security. The net proceeds of the offering were $82,374, after deducting underwriting discounts of $3,688 and offering expenses of $188, all of which were capitalized.

In December 2017, the Company entered into a research and developmentsecurities purchase agreement which governs certain operational activities betweenwith an affiliate of Third Security for the parties andprivate placement of 1,207,980 shares of the Company's common stock for gross proceeds of $13,686.
Share Lending Agreement
Concurrently with the offering of the Convertible Notes (Note 12), Precigen entered into a share lending agreement (the "Share Lending Agreement") with J.P. Morgan Securities LLC (the "Share Borrower") pursuant to which ZIOPHARM provided fundingPrecigen loaned and delivered 7,479,431 shares of its common stock (the "Borrowed Shares") to the Share Borrower. The Share Lending Agreement will terminate, and the Borrowed Shares will be returned to Precigen within five business days of such termination, upon (i) termination by the Share Borrower or (ii) the earliest to occur of (a) October 1, 2023 and (b) the date, if any, on which the Share Lending Agreement is either mutually terminated or terminated by one party upon a default by the other party. The Share Borrower maintains collateral in the form of cash or certain permitted non-cash collateral with a market value at least equal to the market value of the Borrowed Shares as security for the obligation of the Share Borrower to return the Borrowed Shares when required by the terms above. The Borrowed Shares were offered and sold to the public at a price of $13.37 per share under a registered offering (the "Borrowed Shares Offering"). Precigen did not receive any proceeds from the sale of the Borrowed Shares to the public or any lending fees from the Share Lending Agreement. The Share Borrower or its affiliates received all the proceeds from the sale of the Borrowed Shares to the public. Affiliates of Third Security purchased all of the shares of common stock in the Borrowed Shares Offering.
The Share Lending Agreement was entered into at fair value and met the requirements for equity classification. Therefore, the value is netted against the issuance of the Borrowed Shares in additional paid-in capital. Additionally, the Borrowed Shares are not included in the denominator for loss per share attributable to Precigen shareholders unless the Share Borrower defaults on the Share Lending Agreement.
Issuances of AquaBounty Common Stock
In March 2019, AquaBounty completed an underwritten public offering that resulted in net proceeds of $6,611 after deducting discounts, fees, and expenses. See Note 1 for additional discussion of issuances of AquaBounty common stock in April 2019, which resulted in the deconsolidation of AquaBounty.
In January 2018, AquaBounty completed an underwritten public offering that resulted in net proceeds of $10,616 after deducting discounts, fees and expenses. As part of this offering, Precigen purchased $5,000 of additional AquaBounty common stock. In October 2018, certain researchinvestors exercised warrants acquired from the January 2018 offering, resulting in additional net proceeds of $4,316, including $3,077 from Precigen.
In January 2017, in conjunction with the listing by AquaBounty of their common stock on the Nasdaq Stock Market, Precigen purchased $25,000 of additional AquaBounty common stock and development activitiessubsequently distributed shares of MD Anderson forAquaBounty common stock as a period of three years, in an amount between $15,000 and $20,000 per year. The Company and ZIOPHARM reimburse MD Anderson for out of pocket expenses for maintaining patents covering the licensed technologies.dividend to Precigen shareholders.
17. Commitments and Contingencies
Operating Leases
The Company adopted ASC Topic 842, Leases ("ASC 842"), effective January 1, 2019. Under ASC 842, the Company determines if an arrangement is a lease at inception. Operating leases are included as right-of-use assets ("ROU Assets") and lease liabilities on the consolidated balance sheets. The Company has elected not to recognize ROU Assets or lease liabilities for leases with lease terms of one year or less.

Lease liabilities are recognized based on the present value of the future minimum lease payments over the lease term at commencement date. The initial measurement of the ROU Asset also includes any lease payments made, adjusted for lease incentives. For leases that contain non-lease payments, the Company accounts for the lease and non-lease components as a single lease component. Variable lease payments, which primarily include payments for non-lease components such as maintenance costs, are excluded from the ROU Assets and lease liabilities and are recognized in the period in which the obligation for those payments is incurred. As the Company's operating leases do not provide an implicit interest rate, the Company uses its incremental borrowing rate at the lease commencement date, which is the estimated rate the Company would be required to pay for a collateralized borrowing equal to the total lease payments over the term of the lease, in determining the present value of future payments. The lease term for all of the Company's leases includes the noncancelable period of the lease plus any additional periods covered by options that the Company is reasonably certain to exercise, either to extend or to not terminate the lease. Lease expense is recognized on a straight-line basis over the lease term.
Goodwill
Goodwill represents the future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized. Goodwill is reviewed for impairment at least annually. The Company performs a qualitative assessment to determine whether it is more-likely-than-not that the fair value of a reporting unit is less than its carrying amount prior to performing the goodwill impairment test. If this is the case, the goodwill impairment test is required. If it is more-likely-than-not that the fair value of a reporting unit is greater than the carrying amount, the quantitative goodwill impairment test is not required.
If the quantitative goodwill impairment test is required or elected to be performed, first, the fair value of the reporting unit is compared with its carrying amount (including goodwill). If the fair value of the reporting unit is less than its carrying amount, an indication of goodwill impairment exists for the reporting unit and the entity must record the impairment charge for the excess carrying amount, which is limited to the amount of goodwill allocated to the reporting unit. If the fair value of the reporting unit exceeds its carrying amount, no goodwill impairment charge is necessary.
The Company performs its annual impairment review of goodwill in the fourth quarter, or sooner if a triggering event occurs prior to the annual impairment review. In April 2019, as a result of the Company's change in segments (Notes 2 and 20), one of the Company's prior reporting units was separated into various reporting units. Accordingly, the Company performed a relative fair value allocation of certain of its goodwill to the applicable reporting units and reviewed the reallocated goodwill for impairment.
The fair value of the reporting units are primarily determined based on the income approach. The income approach is a valuation technique in which fair value is based from forecasted future cash flows, discounted at the appropriate rate of return commensurate with the risk as well as current rates of return for equity and debt capital as of the valuation date. The forecast used in the Company's estimation of fair value was developed by management based on historical operating results, incorporating adjustments to reflect management's planned changes in operations and market considerations. The discount rate utilizes a risk adjusted weighted average cost of capital. To assess the reasonableness of the calculated reporting unit fair values, the Company compares the sum of the reporting units' fair values to its market capitalization (per share stock price times the number of shares outstanding) and calculates an implied control premium (the excess of the sum of the reporting units' fair values over the market capitalization) and then assesses the reasonableness of its implied control premium.
See Notes 3 and 11 for additional discussion regarding goodwill impairment charges recorded in the year ended December 31, 2019.
Intangible Assets
Intangible assets subject to amortization consist of patents, developed technologies and know-how; customer relationships; and trademarks acquired as a result of mergers and acquisitions. These intangible assets are subject to amortization, were recorded at fair value at the date of acquisition, and are stated net of accumulated amortization. Indefinite-lived intangible assets consist of in-process research and development technologies acquired in mergers or acquisitions and were recorded at fair value at the dates of the respective acquisitions.
The Company amortizes long-lived intangible assets to reflect the pattern in which the economic benefits of the intangible asset are expected to be realized. The intangible assets are amortized over their estimated useful lives, ranging from three to eighteen years for the patents, developed technologies, and know-how; customer relationships; and trademarks.

Impairment of Long-Lived Assets
Long-lived assets to be held and used, including property, plant and equipment and intangible assets subject to amortization, are reviewed for impairment whenever events or changes in circumstances indicate that the carrying amount of the assets may not be recoverable. Conditions that would necessitate an impairment assessment include a significant decline in the observable market value of an asset, a significant change in the extent or manner in which an asset is used, or a significant adverse change that would indicate that the carrying amount of an asset or group of assets is not recoverable.
Indefinite-lived intangible assets, including in-process research and development, are tested for impairment annually, or more frequently if events or circumstances between annual tests indicate that the asset may be impaired. Impairment losses on indefinite-lived intangible assets are recognized based solely on a comparison of their fair value to carrying value, without consideration of any recoverability test. The Company monitors the progression of its in-process research and development, as the likelihood of success is contingent upon commercial development or regulatory approval.
See Notes 3 and 10 for additional discussion of impairment of long-lived assets for the three years ended December 31, 2019.
Convertible Notes
The Company allocated the proceeds received in July 2018 from the issuance of Precigen's 3.50% convertible senior notes due 2023 (the "Convertible Notes") between long-term debt (liability component) and additional paid-in capital (equity component) within the consolidated balance sheet. The original value assigned to long-term debt is the estimated fair value as of the issuance date of a similar debt instrument without a conversion option. The original value assigned to additional paid-in capital represents the value of the conversion option and is calculated by deducting the fair value of the long-term debt from the principal amount of the Convertible Notes and is not remeasured as long as it continues to meet the requirements for equity classification. The original value of the conversion option will accrete to the carrying value of the long-term debt and result in additional noncash interest expense over the expected life of the Convertible Notes using the effective interest method.
Debt issuance costs related to the Convertible Notes are also allocated between long-term debt and additional paid-in capital based on the original value assigned to each. Debt issuance costs allocated to long-term debt reduced the original carrying value and will accrete to the carrying value of the long-term debt and result in additional noncash interest expense over the expected life of the Convertible Notes using the effective interest method. Debt issuance costs allocated to additional paid-in capital are recorded as reduction of the original value assigned to the conversion option.
See Note 12 for the further discussion of the Convertible Notes.
Foreign Currency Translation
The assets and liabilities of foreign subsidiaries, where the local currency is the functional currency, are translated from their respective functional currencies into United States dollars at the exchange rates in effect at the balance sheet date, with resulting foreign currency translation adjustments recorded in the consolidated statement of comprehensive loss. Revenue and expense amounts are translated at average rates during the period.
Income Taxes
Income taxes are accounted for under the asset and liability method. Deferred tax assets and liabilities are recognized for the future tax consequences attributable to both differences between the financial statement carrying amounts of existing assets and liabilities and their respective tax bases as well as operating loss and tax credit carryforwards. Deferred tax assets and liabilities are measured using enacted tax rates expected to apply to taxable income in the years in which those temporary differences are expected to be recovered or settled. The effect on deferred tax assets and liabilities of a change in tax rates is recognized in income in the period that includes the enactment date of the change. Valuation allowances are established when necessary to reduce deferred tax assets to the amount expected to be realized.
The Company identifies any uncertain income tax positions and recognizes the effect of income tax positions only if those positions are more likely than not of being sustained. Recognized income tax positions are measured at the largest amount that is greater than 50% likely of being realized. Changes in recognition or measurement are reflected in the period in which the change in judgment occurs. The Company records interest, if any, related to unrecognized tax benefits as a component of interest expense. Penalties, if any, are recorded in selling, general and administrative expenses.

On December 22, 2017, the Tax Cuts and Jobs Act of 2017 (the "Tax Act") was signed into law and significantly revised United States corporate income tax law by, among other things, reducing the corporate income tax rate to 21% effective January 1, 2018, eliminating the corporate alternative minimum tax and implementing a modified territorial tax system that includes a one-time transition tax on deemed repatriated earnings from foreign subsidiaries. The United States Securities and Exchange Commission ("SEC") Staff issued Staff Accounting Bulletin No. 118 to address the application of U.S. GAAP in situations when a registrant does not have the necessary information available, prepared, or analyzed, including computations, in reasonable detail to complete the accounting for certain income tax effects of the Tax Act. The Company recognized provisional tax impacts related to revaluation of most of the Company's domestic deferred tax assets, the impact of revaluation of those deferred tax assets on the Company's valuation allowance and elimination of the corporate alternative minimum tax, and included those amounts in the consolidated financial statements for the year ended December 31, 2017. The Company completed its accounting for the Tax Act in the fourth quarter of 2018, and there were no significant adjustments to the previously recorded provisional amounts.
In addition, the Tax Act implemented a new minimum tax on global intangible low-taxed income ("GILTI"). A company can elect an accounting policy to account for GILTI in either of the following ways:
As a period charge in the future period in which the tax arises; or
As part of deferred taxes related to the investment or subsidiary.
The Company elected to account for GILTI as a period charge in the period in which the tax arises. There was no impact to the accompanying consolidated financial statements as of and for the years ended December 31, 2019 and 2018.
See Note 13 for additional discussion of the Tax Act.
Share-Based Payments
Precigen uses the Black-Scholes option pricing model to estimate the grant-date fair value of all stock options. The Black-Scholes option pricing model requires the use of assumptions for estimated expected volatility, estimated expected term of stock options, risk-free rate, estimated expected dividend yield, and the fair value of the underlying common stock at the date of grant. Since Precigen does not have sufficient history to estimate the expected volatility of its common stock price, expected volatility is based on a blended approach that utilizes the volatility of Precigen's common stock and the volatility of peer public entities that are similar in size and industry. Precigen estimates the expected term of all options based on previous history of exercises. The risk-free rate is based on the United States Treasury yield curve in effect at the time of grant for the expected term of the option. The expected dividend yield is 0% as Precigen does not expect to declare cash dividends in the near future. The fair value of the underlying common stock is determined based on the quoted market price on the Nasdaq Global Select Market ("Nasdaq"). Forfeitures are recorded when incurred. The assumptions used in the Black-Scholes option pricing model for the years ended December 31, 2019, 2018 and 2017 are set forth in the table below:
 2019 2018 2017
Valuation assumptions     
Expected dividend yield0% 0% 0%
Expected volatility58%—64% 55%—59% 57%—60%
Expected term (years)6.25 6.25 6.25
Risk-free interest rate1.53%—2.58% 2.33%—3.06% 1.89%—2.27%

Grant date fair value for the Company's restricted stock units ("RSUs") is based on the fair value of the underlying common stock as determined based on the quoted market price on the Nasdaq on the date of grant.
Net Loss per Share
Basic net loss per share is calculated by dividing net loss attributable to common shareholders by the weighted average shares outstanding during the period, without consideration of common stock equivalents. Diluted net loss per share is calculated by adjusting weighted average shares outstanding for the dilutive effect of common stock equivalents outstanding for the period, using the treasury-stock method. For purposes of the diluted net loss per share calculation, shares to be issued pursuant to convertible debt, stock options, RSUs, and warrants are considered to be common stock equivalents but are excluded from the calculation of diluted net loss per share because their effect would be anti-dilutive and, therefore, basic and diluted net loss per share were the same for all periods presented.

Segment Information
The Company realigned its business in April 2019, and as a result, its chief operating decision maker ("CODM") now regularly reviews disaggregated financial information for various operating segments. As of December 31, 2019, the Company's reportable segments were (i) PGEN Therapeutics; (ii) ActoBio; (iii) MBP Titan; and (iv) Trans Ova. All of Precigen's consolidated subsidiaries and operating divisions that did not meet the quantitative thresholds to report separately are combined and reported in a single category, All Other. See Note 1 for a description of each of these reportable segments. Corporate expenses, which are not allocated to the segments and are managed at a consolidated level, include costs associated with general and administrative functions, including the Company's finance, accounting, legal, human resources, information technology, corporate communication, and investor relations functions. Corporate expenses exclude interest expense, depreciation and amortization, stock-based compensation expense, and equity in net loss of affiliates and include unrealized and realized gains and losses on the Company's securities portfolio as well as dividend income. The Company's segment presentation has been recast to retrospectively reflect the change from 1 reportable segment to multiple reportable segments. See Note 20 for further discussion of the Company's segments.
Use of Estimates
The preparation of financial statements in conformity with U.S. GAAP requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities, the disclosure of contingent assets and liabilities at the date of the financial statements, and the reported amounts of revenues and expenses during the reporting periods. Actual results could differ from those estimates.
Recently Adopted Accounting Pronouncements
The Company adopted ASC 842 on January 1, 2019 using the modified retrospective method as of the adoption date without restating prior periods. In addition, the Company elected to use the package of practical expedients which allowed the Company to not have to reassess whether expired or existing contracts contain leases under the new definition of a lease or the lease classification for expired or existing leases under ASC Topic 840. As a result of the adoption of ASC 842, the Company recorded ROU Assets and lease liabilities of $30,000 and $32,300, respectively, as of January 1, 2019 for continuing operations. The difference between the ROU Assets and lease liabilities primarily represents the balance of deferred rent as of December 31, 2018 that resulted from historical straight-lining of operating leases expense, which was reclassified upon adoption to reduce the measurement of the ROU Assets. There was no impact to accumulated deficit.
In June 2018, the FASB issued Accounting Standards Update ("ASU") 2018-07, Compensation-Stock Compensation (Topic 718): Improvements to Nonemployee Share-Based Payment Accounting ("ASU 2018-07"). The provisions of ASU 2018-07 expand the scope of ASC Topic 718 to include share-based payment transactions for acquiring goods and services from nonemployees. The Company adopted this standard effective January 1, 2019, and there was no material impact to the accompanying consolidated financial statements.
Recently Issued Accounting Pronouncements
In October 2018, the FASB issued ASU 2018-18, Collaborative Arrangements (Topic 808): Clarifying the Interaction between Topic 808 and Topic 606 ("ASU 2018-18"). The provisions of ASU 2018-18 clarify when certain transactions between collaborative arrangement participants should be accounted for under ASC Topic 606, Revenue from Contracts with Customers ("ASC 606"), and incorporates unit-of-account guidance consistent with ASC 606 to aid in this determination. The guidance is effective for annual periods and interim periods within those annual periods beginning after December 15, 2019, and is effective for the Company for the year ending December 31, 2020. The Company is currently evaluating the impact that the implementation of this standard will have on the Company's consolidated financial statements.
In October 2018, the FASB issued ASU 2018-17, Consolidation(Topic 810): Targeted Improvements to Related Party Guidance for Variable Interest Entities ("ASU 2018-17"). The provisions of ASU 2018-17 modify the guidance under ASC Topic 810 related to the evaluation of indirect interests held through related parties under common control when determining whether fees paid to decision makers and service providers are variable interests. Indirect interests held through related parties that are under common control are no longer considered to be the equivalent of direct interests in their entirety and instead should be considered on a proportional basis. This guidance more closely aligns with accounting of how indirect interests held through related parties under common control are considered for determining whether a reporting entity must consolidate a VIE. The guidance is effective for annual periods and interim periods within those annual periods beginning after December 15, 2019, and is effective for the Company for the year ending December 31, 2020. The Company is currently evaluating the impact that the implementation of this standard will have on the Company's consolidated financial statements.

In August 2018, the FASB issued ASU 2018-15, Intangibles - Goodwill and Other-Internal-Use Software (Subtopic 350-40): Customer's Accounting for Implementation Costs Incurred in a Cloud Computing Arrangement That Is a Service Contract ("ASU 2018-15"). The provisions of ASU 2018-15 clarify the accounting for implementation costs of a hosting arrangement that is a service contract. The new standard requires an entity (customer) in a hosting arrangement that is a service contract to follow existing internal-use software guidance to determine which implementation costs to capitalize as an asset related to the service contract and which costs to expense. Capitalized implementation costs of a hosting arrangement that is a service contract should be amortized over the term of the hosting arrangement, which might extend beyond the noncancelable period if there are options to extend or terminate. ASU 2018-15 also specifies the financial statement presentation of capitalized implementation costs and related amortization, in addition to required disclosures for material capitalized implementation costs related to hosting arrangements that are service contracts. The guidance is effective for annual periods and interim periods within those annual periods beginning after December 15, 2019, and is effective for the Company for the year ending December 31, 2020. The Company is currently evaluating the impact that the implementation of this standard will have on the Company's consolidated financial statements.
In August 2018, the FASB issued ASU 2018-13, Fair Value Measurements (Topic 820): Disclosure Framework-Changes to the Disclosure Requirements for Fair Value Measurements ("ASU 2018-13"). The provisions of ASU 2018-13 modify the disclosures related to recurring and nonrecurring fair value measurements. Disclosures related to the transfer of assets between Level 1 and Level 2 hierarchies have been eliminated and various additional disclosures related to Level 3 fair value measurements have been added, modified, or removed. The guidance is effective for annual periods and interim periods within those annual periods beginning after December 15, 2019, and is effective for the Company for the year ending December 31, 2020. The Company is currently evaluating the impact that the implementation of this standard will have on the Company's consolidated financial statements.
In June 2016, the FASB issued ASU 2016-13, Financial Instruments-Credit Losses (Topic 326): Measurement of Credit Losses on Financial Instruments ("ASU 2016-13"). The provisions of ASU 2016-13 modify the impairment model to utilize an expected loss methodology in place of the currently used incurred loss methodology, and requires a consideration of a broader range of reasonable and supportable information to inform credit loss estimates. The guidance is effective for annual periods and interim periods within those annual periods beginning after December 15, 2019, and is effective for the Company for the year ending December 31, 2020. The Company is currently evaluating the impact that the implementation of this standard will have on the Company's consolidated financial statements.
3. Discontinued Operations
On January 1, 2020, the Company and TS Biotechnology Holdings, LLC ("TS Biotechnology"), a related party and an entity managed by Third Security, entered into a Stock and Asset Purchase Agreement pursuant to which the Company agreed to sell a majority of the Company's bioengineering assets and operations to TS Biotechnology for $53,000 and certain contingent payment rights (the "TS Biotechnology Sale"). The TS Biotechnology Sale closed on January 31, 2020. The assets and operations sold in the TS Biotechnology Sale included the following wholly owned subsidiaries, as well as certain equity securities held in Oragenics, Inc. ("Oragenics") and SH Parent that were directly related to the subsidiaries sold:
Intrexon Produce Holdings, Inc. is the parent company of the Company's non-browning apple subsidiaries, Okanagan Specialty Fruits, Inc. and Fruit Orchard Holdings, Inc. (collectively referred herein as "Okanagan");
Intrexon UK Holdings, Inc. is the parent company of Oxitec Limited and subsidiaries, which is a pioneering company in biological insect solutions (referred to herein as "Oxitec");
ILH Holdings, Inc. includes the Company's fine chemicals operations that were focused primarily on microbial production of therapeutic compounds ("Fine Chemicals"); and
Blue Marble AgBio LLC which was formed in January 2020 and includes the Company's agriculture biotechnology assets and operations which were previously a division within Precigen ("AgBio").
Additionally, on January 2, 2020, the Company sold its equity interest in EnviroFlight, LLC ("EnviroFlight"), a JV with Darling Ingredients, Inc. ("Darling"), and related intellectual property rights to Darling for $12,200 (the "EnviroFlight Sale"). Unless referenced separately, the TS Biotechnology Sale and the EnviroFlight Sale are collectively referred to as the "Transactions".
The Transactions were approved by the Company's independent members of the board of directors in December 2019. The Transactions represent a strategic shift of the Company towards the Company becoming a primarily healthcare company

advancing technologies and products that address complex healthcare challenges. The assets, liabilities, and operations related to the Transactions are reclassified and presented as discontinued operations in the accompanying consolidated financial statements for all periods. Immediately prior to the reclassification, the Company evaluated goodwill, long-lived assets, and the equity method investment included in the Transactions for impairment. The Company recorded an impairment charge of $79,396, including $58,042 and $21,354 related to goodwill and other long-lived assets, respectively, at the Okanagan, Oxitec, Fine Chemicals, and AgBio reporting units. Additionally, the Company recorded a $10,283 impairment charge for the write down of the equity method investment and related intangible assets included in the EnviroFlight Sale. These impairment charges are included in loss from discontinued operations in the accompanying consolidated statement of operations for the year ended December, 31, 2019. As of December 31, 2019, the Company has estimated $942 of selling costs related to the Transactions.
The carrying values of the major classes of assets and liabilities included in assets and liabilities held for sale for the Transactions are as follows:
 December 31, 2019
 TS Biotechnology Sale EnviroFlight Sale Total
Assets     
Cash and cash equivalents$2,223
 $
 $2,223
Other current assets9,698
 
 9,698
Property, plant and equipment, net51,975
 
 51,975
Intangible assets, net20,891
 4,383
 25,274
Investments in affiliates
 7,817
 7,817
Right-of-use assets13,622
 
 13,622
Other noncurrent assets212
 
 212
Total assets held for sale$98,621
 $12,200
 $110,821
Liabilities     
Deferred revenue, current (1)$8,723
 $
 $8,723
Operating lease liabilities, current2,459
 
 2,459
Other current liabilities3,058
 41
 3,099
Deferred revenue, net of current portion (2)19,410
 
 19,410
Operating lease liabilities, net of current portion12,623
 
 12,623
Other long-term liabilities1,019
 
 1,019
Total liabilities held for sale$47,292
 $41
 $47,333
(1)Includes deferred revenue, current, from related parties of $1,243.
(2)Includes deferred revenue, net of current portion, from related parties of $6,836.

 December 31, 2018
 TS Biotechnology Sale EnviroFlight Sale Total
Assets     
Cash and cash equivalents$5,892
 $
 $5,892
Other current assets3,263
 
 3,263
Property, plant and equipment, net41,978
 
 41,978
Intangible assets, net31,782
 8,547
 40,329
Investments in affiliates
 16,720
 16,720
Goodwill55,958
 
 55,958
Other noncurrent assets1,376
 
 1,376
Total assets held for sale$140,249
 $25,267
 $165,516
Liabilities     
Deferred revenue, current (1)$4,466
 $
 $4,466
Other current liabilities3,874
 
 3,874
Deferred revenue, net of current portion (2)7,482
 
 7,482
Other long-term liabilities3,476
 
 3,476
Total liabilities held for sale$19,298
 $
 $19,298
(1)Includes deferred revenue, current, from related parties of $443.
(2)Includes deferred revenue, net of current portion, from related parties of $7,455.
The following tables present the financial results of discontinued operations:
 Year Ended December 31, 2019
 TS Biotechnology Sale EnviroFlight Sale Total
Revenue (1)$12,307
 $
 $12,307
Operating expenses (2)116,091
 10,794
 126,885
Operating loss(103,784) (10,794) (114,578)
Other expense, net(272) 
 (272)
Equity in net loss of affiliates
 (4,314) (4,314)
Loss before income taxes(104,056) (15,108) (119,164)
Income tax benefit3,005
 
 3,005
Loss from discontinued operations$(101,051) $(15,108) $(116,159)
(1)Includes revenue recognized from related parties of $3,042.
(2)Includes the impairment charge of $89,679 related to the Transactions discussed above.

 Year Ended December 31, 2018
 TS Biotechnology Sale EnviroFlight Sale Total
Revenue (1)$9,396
 $
 $9,396
Operating expenses (2)111,039
 470
 111,509
Operating loss(101,643) (470) (102,113)
Other expense, net(1,757) 
 (1,757)
Equity in net loss of affiliates
 (2,622) (2,622)
Loss before income taxes(103,400) (3,092) (106,492)
Income tax benefit6,103
 
 6,103
Loss from discontinued operations$(97,297) $(3,092) $(100,389)
(1)Includes revenue recognized from related parties of $4,665.
(2)
Includes an impairment charge of $60,504 recorded in 2018 related to Oxitec's developed technology targeting the Aedes Aegypti mosquito and a $5,057 loss on disposal of certain leasehold improvements, equipment and other fixed assets in conjunction with the closing of one of Oxitec's research and development facilities in Brazil.
 Year Ended December 31, 2017
 TS Biotechnology Sale EnviroFlight Sale Total
Revenue (1)$11,518
 $
 $11,518
Operating expenses (2)53,028
 470
 53,498
Operating loss(41,510) (470) (41,980)
Other expense, net(7,506) 
 (7,506)
Equity in net loss of affiliates
 (1,847) (1,847)
Loss before income taxes(49,016) (2,317) (51,333)
Income tax benefit4,952
 
 4,952
Loss from discontinued operations$(44,064) $(2,317) $(46,381)
(1)Includes revenue recognized from related parties of $8,185.
(2)Includes an impairment charge of $2,950 recorded as part of its annual impairment assessment of indefinite-lived intangible assets.

The following table presents the significant non-cash items, investments in EnviroFlight and purchases of property, plant and equipment for the discontinued operations that are included in the accompanying consolidated statements of cash flows.
 Year Ended December 31,
 2019 2018 2017
Adjustments to reconcile net loss to net cash used in operating activities     
Depreciation and amortization$5,107
 $9,007
 $9,536
Impairment loss89,679
 60,504
 2,950
Unrealized and realized depreciation on equity securities and preferred stock, net458
 1,927
 7,544
Equity in net loss of EnviroFlight4,314
 2,622
 1,847
Stock-based compensation expense2,507
 3,872
 4,683
Deferred income taxes(2,710) (5,703) (4,575)
Cash flows from investing activities     
Investments in EnviroFlight(2,000) (12,250) (4,750)
Purchases of property, plant and equipment(23,326) (21,191) (13,455)
Also see Note 23 below.
Equity Method Investments
The Company accounted for its investment in EnviroFlight using the equity method of accounting.
The Company accounted for its equity securities held in Oragenics, one of its collaborators and a related party, using the fair value option. Oragenics was considered an equity method investment through September 30, 2018.
Summarized financial data for equity method investments included in discontinued operations during the periods below are shown in the following tables.
 December 31,
 2019 2018
Current assets$703
 $5,119
Noncurrent assets30,549
 29,326
Total assets31,252
 34,445
Current liabilities2,352
 1,005
Non-current liabilities88
 
Total liabilities2,440
 1,005
Net assets$28,812
 $33,440
 Year Ended December 31,
 2019 2018 2017
Revenues$510
 $268
 $254
Operating expenses9,159
 12,709
 10,671
Operating loss(8,649) (12,441) (10,417)
Other, net21
 39
 (8)
Net loss$(8,628) $(12,402) $(10,425)
Where applicable, the notes to the consolidated financial statements have been updated to reflect information pertaining to the Company's continuing operations.

4. Mergers and Acquisitions
Asset Acquisition of Certain Harvest Entities
In September 2018, the Company, through its wholly owned subsidiary ActoBio, issued $30,000 of convertible promissory notes to Harvest, a related party, to acquire Harvest's ownership in CRS Bio, Inc. ("CRS Bio"); Genten Therapeutics, Inc. ("Genten Therapeutics"); and Relieve Genetics, Inc. ("Relieve Genetics") (collectively the "Harvest entities"). The Company also received $15,500 cash in the transaction from the acquisition of the Harvest entities. Prior to the transaction, the Company held a noncontrolling interest in the Harvest entities, with a combined carrying value for all entities of $4,303, and accounted for its ownership using the equity method of accounting. Following the transaction, the Company owns 100% of the equity interests of the Harvest entities including the rights that had been previously licensed to the Harvest entities by the Company. The Harvest entities did not meet the definition of a business and accordingly, the transaction was accounted for as an asset acquisition.
By reacquiring the rights previously licensed to the Harvest entities, the Company was relieved from its obligations under the original ECCs and therefore wrote off deferred revenue of $10,078 in September 2018 as part of the transaction. The remaining value acquired of $8,721 was considered in-process research and development related to the reacquired rights under the ECCs and expensed immediately.
See Note 12 for additional discussion of the convertible promissory notes.
GenVec Acquisition
In June 2017, pursuant to an Agreement and Plan of Merger (the "GenVec Merger Agreement"), the Company acquired 100% of the outstanding shares of GenVec, Inc. ("GenVec"), a clinical-stage company and pioneer in the development of AdenoVerse gene delivery technology. Pursuant to the GenVec Merger Agreement, the former shareholders of GenVec received an aggregate of 684,240 shares of the Company's common stock and have the right to receive contingent consideration equal to 50% of any milestone or royalty payments received under one of GenVec's collaboration agreements, provided such payments are received within three years after the closing of the transaction. The Company also assumed warrants held by certain former shareholders of GenVec. The results of GenVec's operations subsequent to the acquisition date have been included in the consolidated financial statements.
The fair value of the total consideration transferred was $17,582. The acquisition date fair value of each class of consideration transferred is presented below:
Common shares$15,616
Warrants1,381
Contingent consideration585
 $17,582


The fair value of the shares of the Company's common stock issued was based on the quoted closing price of the Company's common stock immediately prior to the closing of the acquisition. The fair value of the warrants assumed was estimated using the Black-Scholes option-pricing model. The fair value of the contingent consideration was determined using a probability weighted discounted cash flows model and is considered a freestanding financial instrument and recorded at fair value each reporting period. The estimated fair value of assets acquired and liabilities assumed at the acquisition date is shown below:
Cash and cash equivalents$2,054
Short-term investments542
Trade receivables75
Other receivables97
Prepaid expenses and other227
Property and equipment250
Intangible assets14,000
Other noncurrent assets58
Total assets acquired17,303
Accounts payable2,158
Accrued compensation and benefits1,226
Other accrued expenses856
Other long-term liabilities92
Deferred tax liabilities239
Total liabilities assumed4,571
Net assets acquired12,732
Goodwill4,850
Total consideration$17,582

The acquired intangible assets include developed technology, the fair value of which was determined using the multi-period excess earning method, which is a variation of the income approach that converts future cash flows to single discounted present value amounts. The intangible assets are being amortized over a useful life of eleven years. Goodwill, which is not deductible for tax purposes, represents the assembled workforce and the anticipated buyer-specific synergies arising from the combination of the Company's and GenVec's technology.
Acquisition-related costs totaling $507 are included in selling, general and administrative expenses in the accompanying consolidated statement of operations for the year ended December 31, 2017.
Unaudited Condensed Pro Forma Financial Information
GenVec's results of operations subsequent to the acquisition are included in the consolidated statements of operations. The following unaudited condensed pro forma financial information for the year ended December 31, 2017, is presented as if the acquisition had been consummated on January 1, 2016:
 Year Ended December 31,
 2017
 Pro Forma
Revenues$219,695
Loss from continuing operations before income taxes(85,633)
Net loss(134,275)
Net loss attributable to the noncontrolling interests9,802
Net loss attributable to Precigen(124,473)


5. Investments in Joint Ventures
Intrexon Energy Partners
In March 2014, the Company and certain investors (the "IEP Investors"), including an affiliate of Third Security, a related party, entered into a Limited Liability Company Agreement that governs the affairs and conduct of business of Intrexon Energy Partners, LLC ("Intrexon Energy Partners"), a JV formed to optimize and scale-up the Company's methane bioconversion platform technology for the production of certain fuels and lubricants. The Company also entered into an ECC with Intrexon Energy Partners providing exclusive rights to the Company's technology for the use in bioconversion for the production of certain fuels and lubricants, as a result of which the Company received a technology access fee of $25,000 while retaining a 50% membership interest in Intrexon Energy Partners. The IEP Investors made initial capital contributions, totaling $25,000 in the aggregate, in exchange for pro rata membership interests in Intrexon Energy Partners totaling 50%. In addition, Precigen has committed to make capital contributions of up to $25,000, and the IEP Investors, as a group and pro rata in accordance with their respective membership interests in Intrexon Energy Partners, have committed to make additional capital contributions of up to $25,000, at the request of Intrexon Energy Partners' board of managers (the "Intrexon Energy Partners Board") and subject to certain limitations. As of December 31, 2019, the Company's remaining commitment was $4,225. Intrexon Energy Partners is governed by the Intrexon Energy Partners Board, which has 5 members. NaN members of the Intrexon Energy Partners Board are designated by the Company and 3 members are designated by a majority of the IEP Investors. The Company and the IEP Investors have the right, but not the obligation, to make additional capital contributions above the initial limits when and if solicited by the Intrexon Energy Partners Board.
The Company's investment in Intrexon Energy Partners was $(423) and $(656) as of December 31, 2019 and 2018, respectively, and is included in other accrued liabilities in the accompanying consolidated balance sheets, which represents the Company's equity in losses for contractually committed contributions to Intrexon Energy Partners.
Intrexon Energy Partners II
In December 2015, the Company and certain investors (the "IEPII Investors"), including Harvest, entered into a Limited Liability Company Agreement that governs the affairs and conduct of business of Intrexon Energy Partners II, LLC ("Intrexon Energy Partners II"), a JV formed to utilize the Company's methane bioconversion platform technology for the production of 1,4-butanediol, an industrial chemical used to manufacture spandex, polyurethane, plastics, and polyester. The Company also entered into an ECC with Intrexon Energy Partners II that provides exclusive rights to the Company's technology for use in the field, as a result of which the Company received a technology access fee of $18,000 while retaining a 50% membership interest in Intrexon Energy Partners II. The IEPII Investors made initial capital contributions, totaling $18,000 in the aggregate, in exchange for pro rata membership interests in Intrexon Energy Partners II totaling 50%. In December 2015, the owners of Intrexon Energy Partners II made a capital contribution of $4,000, half of which was paid by the Company. Precigen has committed to make additional capital contributions of up to $10,000, and the IEPII Investors, as a group and pro rata in accordance with their respective membership interests in Intrexon Energy Partners II, have committed to make additional capital contributions of up to $10,000, at the request of Intrexon Energy Partners II's board of managers (the "Intrexon Energy Partners II Board") and subject to certain limitations. As of December 31, 2019, the Company's remaining commitment was $10,000. Intrexon Energy Partners II is governed by the Intrexon Energy Partners II Board, which has 5 members. NaN member of the Intrexon Energy Partners II Board is designated by the Company and 4 members are designated by a majority of the IEPII Investors. The Company and the IEPII Investors have the right, but not the obligation, to make additional capital contributions above the initial limits when and if solicited by the Intrexon Energy Partners II Board.
The Company's investment in Intrexon Energy Partners II was $(435) and $(50) as of December 31, 2019 and 2018, respectively, and is included in other accrued liabilities in the accompanying consolidated balance sheets, which represents the Company's equity in losses for contractually committed contributions to Intrexon Energy Partners II.
Intrexon T1D Partners
In March 2016, the Company and certain investors (the "T1D Investors"), including affiliates of Third Security, entered into a Limited Liability Company Agreement that governs the affairs and conduct of business of Intrexon T1D Partners, LLC ("Intrexon T1D Partners"), a JV formed to utilize the Company's proprietary ActoBiotics platform to develop and commercialize products to treat type 1 diabetes. The Company also entered into an ECC with Intrexon T1D Partners that provided the exclusive rights to the Company's technology for use in the field, as a result of which the Company received a technology access fee of $10,000 while retaining a 50% membership interest in Intrexon T1D Partners. The T1D Investors made initial capital contributions, totaling $10,000 in the aggregate, in exchange for pro rata membership interests in Intrexon T1D Partners totaling 50%. Precigen committed to make capital contributions of up to $5,000, and the T1D Investors, as a group and pro rata in accordance with their respective membership interests in Intrexon T1D Partners, committed to make

additional capital contributions of up to $5,000, at the request of Intrexon T1D Partners' board of managers, which consisted of 2 members appointed by the Company and 3 members appointed by a majority of the T1D Investors. The Company satisfied its commitment in 2018.
In November 2018, the Company, together with its wholly owned subsidiary ActoBio, issued 1,933,737 shares of Precigen common stock valued at $18,970 to the T1D Investors to acquire their ownership interest in Intrexon T1D Partners. Following the transaction, the Company owns 100% of the membership interests in Intrexon T1D Partners, including the rights that had been previously licensed to Intrexon T1D Partners by the Company in the ECC. Intrexon T1D Partners did not meet the definition of a business, and accordingly, the transaction was accounted for as an asset acquisition. By reacquiring the rights previously licensed to Intrexon T1D Partners, the Company was relieved from its obligations under the original ECC and therefore wrote off $8,517 of deferred revenue in November 2018 as part of the transaction. The remaining value of $10,453 was considered in-process research and development related to the reacquired rights under the ECC and expensed immediately.
6. Collaboration and Licensing Revenue
The Company's collaborations and licensing agreements provide for multiple promises to be satisfied by the Company and typically include a license to the Company's technology platforms, participation in collaboration committees, and performance of certain research and development services. Based on the nature of the promises in the Company's collaboration and licensing agreements, the Company typically combines most of its promises into a single performance obligation because the promises are highly interrelated and not individually distinct. Options to acquire additional services are considered to determine if they constitute material rights. At contract inception, the transaction price is typically the upfront payment received and is allocated to the performance obligations. The Company has determined the transaction price should be recognized as revenue based on its measure of progress under the agreement primarily based on inputs necessary to fulfill the performance obligation.
See Note 2 for additional discussion of the Company's revenue recognition policy related to collaboration and licensing payments.
The Company determines whether collaborations and licensing agreements are individually significant for disclosure based on a number of factors, including total revenue recorded by the Company pursuant to collaboration and licensing agreements, collaborators or licensees with either majority-owned subsidiaries or equity method investments, or other qualitative factors. Collaboration and licensing revenues generated from consolidated subsidiaries are eliminated in consolidation. Amounts for periods subsequent to January 1, 2018 reflect revenue recognition under ASC 606.
The following table summarizes the amounts recorded as revenue from continuing operations in the consolidated statements of operations for each significant counterparty to a collaboration or licensing agreement for the years ended December 31, 2019, 2018 and 2017.
 Year Ended December 31,
 2019 2018 2017
ZIOPHARM Oncology, Inc.$2,171
 $16,298
 $69,812
Ares Trading S.A.
 11,175
 10,738
Oragenics, Inc.(564) 1,353
 1,469
Intrexon T1D Partners, LLC
 2,502
 5,968
Intrexon Energy Partners, LLC2,596
 6,929
 10,665
Intrexon Energy Partners II, LLC1,217
 2,998
 3,672
Fibrocell Science, Inc.3,713
 1,394
 7,344
OvaXon, LLC
 
 1,966
S & I Ophthalmic, LLC
 
 755
Harvest start-up entities (1)4,862
 14,447
 15,232
Other64
 12,444
 7,003
Total$14,059
 $69,540
 $134,624

(1)For the years ended December 31, 2019, 2018, and 2017, revenue recognized from collaborations with Harvest start-up entities include Exotech Bio, Inc.; AD Skincare, Inc.; and Thrive Agrobiotics, Inc. For the years ended December 31, 2018 and 2017, revenue recognized from collaborations with Harvest start-up entities also include Genten Therapeutics

and CRS Bio. For the year ended December 31, 2017, revenue recognized from collaborations with Harvest start-up entities also include Relieve Genetics.
The following is a summary of the terms of the Company's significant collaborations and licensing agreements from continuing operations.
ZIOPHARM Collaborations
In January 2011, the Company entered into an ECC with ZIOPHARM Oncology, Inc. ("ZIOPHARM"), a related party at the time. Pursuant to the ECC, ZIOPHARM received a license to the Company's technology platform within the field of oncology as defined more specifically in the agreement. Upon execution of the ECC, the Company received 3,636,926 shares of ZIOPHARM's common stock valued at $17,457 as upfront consideration. In addition to the promises discussed above, the Company transferred two clinical product candidates to ZIOPHARM for which $1,115 of the upfront consideration was allocated and recognized as collaboration revenue in 2011. The remaining $16,342 of upfront consideration was allocated to a single performance obligation as discussed above. The Company was entitled to additional shares of common stock at the date of the dosing of the first patient in a Phase II clinical trial of a product candidate created, produced or developed by ZIOPHARM using the Company's technology ("ZIOPHARM Milestone"). In October 2012, the ZIOPHARM Milestone was achieved and the Company received 3,636,926 shares of ZIOPHARM's common stock valued at $18,330 as milestone consideration. Upon adoption of ASC 606, the Company recorded a cumulative catch-up adjustment of $873 related to milestone consideration. The Company allocated the ZIOPHARM Milestone to the two performance obligations and recognized those in a manner similar to the discussion above. The Company received reimbursement payments for research and development services provided and manufacturing services for Company materials provided to ZIOPHARM during the ECC. In March 2015, in conjunction with the worldwide License and Collaboration Agreement ("Merck Agreement") with Ares Trading S.A. ("Ares Trading"), a wholly owned subsidiary of Merck KGaA, and ZIOPHARM discussed below, the Company and ZIOPHARM amended their existing ECC. The amendment modified the scope of the ECC in connection with the Merck Agreement and provided that the Company would pay to ZIOPHARM 50% of all payments received for upfront fees, milestones and royalties under the Merck Agreement. See discussion of the Merck Agreement below.
In September 2015, the Company entered into its second ECC with ZIOPHARM ("ZIOPHARM ECC 2"). Pursuant to the ECC, ZIOPHARM received a license to the Company's technology platform to develop and commercialize novel biotherapeutics for the treatment of patients with graft-versus-host disease. Upon execution of ZIOPHARM ECC 2, the Company received a technology access fee of $10,000. The Company received reimbursement payments for research and development services provided pursuant to the agreement during the ECC and manufacturing services for Company materials provided to ZIOPHARM during the ECC. In December 2017, the Company and ZIOPHARM mutually agreed to terminate ZIOPHARM ECC2 and accordingly, the Company recognized the remaining balance of the deferred revenue associated with ZIOPHARM ECC2 totaling $28,943.
In June 2016, the Company amended each of its two existing collaboration agreements with ZIOPHARM and as a result the rate of the royalty that the Company is entitled to receive on certain products commercialized pursuant to the agreements was reduced from 50% to 20%. As consideration for execution of the amendments, ZIOPHARM issued the Company 100,000 shares of ZIOPHARM's Series 1 Preferred Stock valued at $120,000. The Company allocated the consideration received to each ECC based on the cumulative value of upfront and milestone payments previously received pursuant to that ECC. Upon adoption of ASC 606, the Company recognized a cumulative catch-up adjustment of $32,422 as a result of the contract modification requiring a cumulative catch-up under ASC 606 versus prospective recognition under previous revenue recognition accounting standards. See Note 18 for additional discussion of the terms of the preferred stock and the accounting treatment.
In October 2018, the Company, through its wholly owned subsidiary PGEN Therapeutics, entered into alicense agreement (the "ZIOPHARM License Agreement") with ZIOPHARM, which terminated and replaced the terms of the original ZIOPHARM ECC, including the amendments thereto.  Pursuant to the terms of the ZIOPHARM License Agreement, the Company granted ZIOPHARM an exclusive, worldwide, royalty-bearing, sub-licensable license to research, develop and commercialize (i) products utilizing the Company's RheoSwitch gene switch ("RTS") to express IL-12 (the "IL-12 Products") for the treatment of cancer, (ii) chimeric antigen receptor ("CAR") products directed to (a) CD19 for the treatment of cancer (the "CD19 Products"), and (b) a second target, subject to the rights of the Company to pursue such target under the Merck Agreement, and (iii) T-cell receptor ("TCR") products (the "TCR Products") designed for neoantigens for the treatment of cancer or the treatment and prevention of human papilloma virus ("HPV") to the extent that the primary reason for such treatment or prevention is to prevent cancer, which is referred to as the HPV Field. The Company has also granted ZIOPHARM an exclusive, worldwide, royalty-bearing, sub-licensable license for certain patents relating to the Company's Sleeping Beauty technology to research, develop and commercialize TCR Products for both neoantigens and shared antigens for the treatment of

cancer and in the HPV Field. ZIOPHARM will be solely responsible for all aspects of the research, development and commercialization of the exclusively licensed products for the treatment of cancer. ZIOPHARM is required to use commercially reasonable efforts to develop and commercialize IL-12 Products and CD19 Products, and after a two-year period, the TCR Products. The Company also granted ZIOPHARM an exclusive, worldwide, royalty-bearing, sub-licensable license to research, develop and commercialize products utilizing an additional construct that expresses RTS IL-12 (the "Gorilla IL-12 Products") for the treatment of cancer and in the HPV Field. ZIOPHARM is responsible for all development costs associated with each of the licensed products, other than Gorilla IL-12 Products. ZIOPHARM and the Company will share the development costs and operating profits for Gorilla IL-12 Products, with ZIOPHARM responsible for 80% of the development costs and receiving 80% of the operating profits, as defined in the ZIOPHARM License Agreement, and the Company responsible for the remaining 20% of the development costs and receiving 20% of the operating profits, except that ZIOPHARM will bear all development costs and the Company will share equally in operating profits for Gorilla IL-12 Products in the HPV Field (the "Gorilla Program").
In consideration of the licenses and other rights granted by the Company, ZIOPHARM will pay the Company an annual license fee of $100 and agreed to reimburse the Company $1,000, paid in 4 quarterly installments, with respect to historical Gorilla IL-12 Products (the "historical Gorilla reimbursements"). ZIOPHARM will make milestone payments, payable upon the initiation of later stage clinical trials and upon the approval of exclusively licensed products in various jurisdictions, totaling up to an additional $52,500 for each of 4 exclusively licensed products, up to an aggregate of $210,000. In addition, ZIOPHARM will pay the Company tiered royalties ranging from low-single digits to high-single digits on the net sales derived from the sales of any approved IL-12 Products and CAR products. ZIOPHARM will also pay the Company royalties ranging from low-single digits to mid-single digits on the net sales derived from the sales of any approved TCR Products, up to maximum royalty amount of $100,000 in the aggregate. ZIOPHARM will also pay the Company 20% of any sublicensing income received by ZIOPHARM relating to the licensed products.
The Company reacquired rights to research, develop and commercialize CAR products for all other targets. In addition, the Company may research, develop and commercialize products for the treatment of cancer, outside of the products exclusively licensed to ZIOPHARM.  The Company will pay ZIOPHARM royalties ranging from low-single digits to mid-single digits on the net sales derived from the sale of the Company's CAR products, up to $50,000. The Company also received from ZIOPHARM reimbursement of costs incurred to transition the necessary knowledge and materials for ZIOPHARM programs for a period of one year from the effective date (the "Transition Services").
As between the parties, the Company agreed to perform all of the obligations of ZIOPHARM under the Merck Agreement, other than an obligation of exclusivity thereunder and ZIOPHARM will remain responsible for all payments owed under the Merck Agreementwith respect to CD19 and the other target under the Merck Agreement as a result of ZIOPHARM's, its affiliates' or its sublicensees' exploitation of CAR products. Further, the Company is entitled to receive all rights and financial considerations with respect to all other CAR products, subject to the CAR royalties due to ZIOPHARM for such products. The ZIOPHARM License Agreement will terminate on a product-by-product and/or country-by-country basis upon the expiration of the later to occur of (i) the expiration of the last to expire patent claim for a licensed product, or (ii) 12 years after the first commercial sale of a licensed product in such country. In addition, ZIOPHARM may terminate the ZIOPHARM License Agreement on a country-by-country or program-by-program basis following written notice to the Company, and either party may terminate the ZIOPHARM License Agreement following notice of a material breach.
Pursuant to the ZIOPHARM License Agreement, the 2016 Securities Issuance Agreement between the Company and ZIOPHARM was terminated as of the effective date of the ZIOPHARM License Agreement, all of the benefits, rights, obligations and liabilities thereunder immediately ceased and terminated and the Company returned to ZIOPHARM all of the preferred stock owned by the Company as of the Effective Date, which was valued at $158,376. See Note 18 for additional discussion of the preferred stock.
Prior to the execution of the ZIOPHARM License Agreement, the Company had $51,084 of deferred revenue remaining from the original ECC, which was related to the Company's obligations to perform under that agreement. Replacement of the original ECC with the ZIOPHARM License Agreement is a contract modification under ASC 606 that represents the termination of the original agreement and the creation of a new agreement as the remaining rights, obligations, and services to be exchanged, which are limited to the Transition Services, are distinct from those under the ECC. Therefore, the Company reviewed the various forms of consideration in the ZIOPHARM License Agreement to determine the transaction price. As the Company's obligations under the ZIOPHARM License Agreement are only related to the Transition Services and no other obligations under the ECC remain, a portion of the previously deferred revenue from the ECC should be relieved, which the Company determined to be $49,329, and the remaining $1,755 was included in the transaction price. The initial annual license payment of $100 was also included in the transaction price. The remaining annual license payments and potential milestone payments were constrained at the modification date and will only be recognized when the payments become probable of being

received. Royalty payments from sales of ZIOPHARM products developed pursuant to the ZIOPHARM License Agreement will be recognized when the sales occur. The Company recognized payments from Transition Services as those services were performed and recognized the transaction price of $1,855 as it performed the Transition Services required under the ZIOPHARM License Agreement.
The Company also reviewed the consideration paid and potential consideration to be paid to ZIOPHARM as part of the ZIOPHARM License Agreement, which includes the $158,376 of ZIOPHARM preferred stock returned by the Company and potential royalty payments to ZIOPHARM from sales of the Company's CAR products. The Company determined the exchange of its investment in ZIOPHARM preferred stock for certain CAR rights previously licensed under the ECC (i.e., in-process research and development) and the relief of performance obligations to ZIOPHARM under the ECC constituted an exchange for distinct goods and services. Therefore, the Company wrote off the $49,329 of relieved deferred revenue and recorded an expense of $109,047 for the reacquired in-process research and development. Potential royalty payments to ZIOPHARM will be expensed as incurred as they relate to distinct goods or services.
The Company determined that the Gorilla Program represents a separate collaboration agreement under the scope of ASC 808, Collaborative Arrangements, ("ASC 808") and will not be included in the accounting for the ZIOPHARM License Agreement under ASC 606. The Company recognized $500 of the historical Gorilla reimbursements on the contract modification date and recognized the remaining amounts when receipt became probable. The development costs and operating profits from the Gorilla Program will be recognized in accordance with ASC 808.
Merck Licensing Agreement
In March 2015, the Company signed the Merck Agreement with Ares Trading and ZIOPHARM through which the parties established a collaboration for the research and development and commercialization of certain products for the prophylactic, therapeutic, palliative or diagnostic use for cancer in humans. Pursuant to the Merck Agreement, the Company received a technology access fee of $115,000 as upfront consideration, of which $57,500 was paid to ZIOPHARM in accordance with the terms of the agreement. Upon the selection of the first 2 targets by Ares Trading, the Company received $10,000 in equal quarterly installments over two years.
In December 2018, the Company entered into a Securities Purchase, Assignment and Assumption Agreement (the "Merck Purchase Agreement") with Ares Trading pursuant to which the Company reacquired Ares Trading's development and commercialization rights under the Merck Agreement. As consideration for the reacquisition of the Merck Agreement, the Company issued Ares Trading 20,640,119 shares of Precigen common stock valued at $140,353 and agreed to pay Ares Trading a royalty of 10% of the net sales derived from two CAR products specified in the Merck Purchase Agreement. By reacquiring the rights previously licensed to Ares Trading, the Company is relieved of its obligations under the Merck Agreement and therefore wrote off deferred revenue of $31,826. The remaining value acquired of $108,527 was considered in-process research and development related to the reacquired rights under the Merck Agreement and expensed immediately. The potential future royalty payments to Ares Trading do not represent consideration paid to a customer and will be recorded when the payments are probable. See Note 12 for additional discussion of this transaction.
Oragenics Collaborations
In June 2015, the Company entered into an ECC with Oragenics. Pursuant to the ECC, at the transaction effective date, Oragenics received a license to the Company's technology platform within the field of biotherapeutics for use in certain treatments of oral mucositis and other diseases and conditions of the oral cavity, throat, and esophagus. Upon execution of the ECC, the Company received a technology access fee of a $5,000 convertible promissory note maturing on or before December 31, 2015 as upfront consideration. Prior to the maturity date, Oragenics had the right to convert the promissory note into shares of Oragenics' common stock, subject to its shareholders' approval. In December 2015, Oragenics converted the promissory note into 338,100 shares of Oragenics' common stock. These shares were sold in the TS Biotechnology Sale (Note 3). Following an amendment in November 2017, the Company is entitled to up to $37,500 of potential one-time payments for development and commercial milestones under the ECC. The Company receives reimbursement payments for research and development services provided pursuant to the agreement during the ECC and manufacturing services for Company materials provided to Oragenics during the ECC. Oragenics will pay the Company royalties as a percentage in the low-teens of net sales derived from the sale of products developed from the ECC, as defined in the agreement.
Oragenics is responsible for funding the further development of products under the ECC towards the goal of commercialization, conducting preclinical and clinical development of product candidates, as well as for other aspects of commercialization or manufacturing of the product candidates. The term of the ECC commenced in June 2015 and may be

terminated by either party in the event of certain material breaches defined in the agreement and may be terminated voluntarily by Oragenics upon 90 days written notice to the Company.
Intrexon T1D Partners Collaboration
In March 2016, the Company entered into an ECC with Intrexon T1D Partners, a JV between the Company and certain investors and a related party. Pursuant to the ECC, Intrexon T1D Partners received an exclusive license to the Company's technology platform to develop and commercialize products to treat type 1 diabetes. Upon execution of the ECC, the Company received a technology access fee of $10,000. The Company received reimbursement of research and development services provided pursuant to the ECC agreement. In November 2018, the Company completed an asset acquisition with the T1D Investors, resulting in the Company owning 100% of the membership interest of Intrexon T1D Partners including all rights under the ECC (Note 5).
Genten Therapeutics Collaboration
In September 2016, the Company entered into an ECC with Genten Therapeutics, an affiliate of Harvest and a related party. Genten Therapeutics was formed for the purpose of entering into the ECC and developing and commercializing products using the Company's technology for expression of gluten peptides, alone or in combination with immunomodulatory cytokines, to reestablish immune tolerance for patients with celiac disease. Upon execution of the ECC, the Company received a technology access fee in the form of a $1,500 cash payment and equity in Genten Therapeutics valued at $3,000 as upfront consideration. The Company received reimbursement payments for research and development services provided pursuant to the ECC. In September 2018, the Company completed an asset acquisition with Harvest, resulting in the Company owning 100% of the equity interests of Genten Therapeutics including all rights under the ECC (Note 4).
CRS Bio Collaboration
In September 2016, the Company entered into an ECC with CRS Bio, an affiliate of Harvest and a related party. CRS Bio was formed for the purpose of entering into the ECC and developing and commercializing products through targeted delivery of antibodies for treatment of chronic rhinosinusitis with and without nasal polyps, by utilizing the Company's technology to block inflammatory mediators in the nasal passage, leading to improved breathing and, importantly, patients' quality of life. Upon execution of the ECC, the Company received a technology access fee in the form of equity in CRS Bio valued at $2,100. The Company received reimbursement payments for research and development services provided pursuant to the ECC. In September 2018, the Company completed an asset acquisition with Harvest, resulting in the Company owning 100% of the equity interests of CRS Bio including all rights under the ECC (Note 4).
Relieve Genetics Collaboration
In March 2016, the Company entered into an ECC with Relieve Genetics, an affiliate of Harvest and a related party. Relieve Genetics was formed for the purpose of entering into the ECC and developing and commercializing products using a viral vector expressing interleukin-10 for the treatment of chronic neuropathic pain resultant from cancer in humans. Upon execution of the ECC, the Company received a technology access fee in the form of equity in Relieve Genetics valued at $4,333 as upfront consideration. The Company received reimbursement payments for research and development services provided pursuant to the ECC. In September 2018, the Company completed an asset acquisition with Harvest, resulting in the Company owning 100% of the equity interests of Relieve Genetics including all rights under the ECC (Note 4).
Intrexon Energy Partners Collaboration
In March 2014, the Company entered into an ECC with Intrexon Energy Partners, a JV between the Company and certain investors and a related party. The ECC grants Intrexon Energy Partners an exclusive license to the Company's technology platform to optimize and scale-up the Company's methane bioconversion platform for the production of certain fuels and lubricants. Upon execution of the ECC, the Company received a technology access fee of $25,000 as upfront consideration. The Company receives reimbursement payments for research and development services as provided for in the ECC agreement. The term of the ECC commenced in March 2014 and continues until March 2034 unless terminated prior to that date by either party in the event of certain material breaches defined in the agreement and may be terminated voluntarily by Intrexon Energy Partners upon 90 days written notice to the Company.

Intrexon Energy Partners II Collaboration
In December 2015, the Company entered into an ECC with Intrexon Energy Partners II, a JV between the Company and certain investors and a related party. Pursuant to the ECC, Intrexon Energy Partners II received an exclusive license to the Company's technology platform to optimize and scale-up the Company's methane bioconversion platform for the production of 1,4-butanediol (BDO), a key chemical intermediate that is used to manufacture spandex, polyurethane, plastics, and polyester. Upon execution of the ECC, the Company received a technology access fee of $18,000 and is entitled to reimbursement of research and development services as provided for in the ECC agreement. The term of the ECC commenced in December 2015 and continues until December 2035; termination prior to that date may be initiated (i) by either party in the event of certain material breaches defined in the agreement or (ii) may be terminated voluntarily by Intrexon Energy Partners II upon 90 days written notice to the Company.
Exotech Bio Collaboration
In March 2016, the Company entered into an ECC with Exotech Bio, Inc. ("Exotech Bio"), an affiliate of Harvest and a related party. Exotech Bio was formed for the purpose of entering into the ECC and developing and commercializing products using exosomes carrying a RNA payload designed to kill, suppress, or render immune-visible a cancer cell. Upon execution of the ECC, the Company received a technology access fee in the form of equity in Exotech Bio valued at $5,000 as upfront consideration. In June 2018, the Company and Exotech Bio amended the ECC, which resulted in the expansion of the defined field of use and the Company's ownership in Exotech Bio increasing to 49%. The amendment also eliminated potential future milestone payments and royalties for which the Company was previously entitled. The Company receives reimbursement payments for research and development services provided pursuant to the ECC. The ECC may be terminated by either party in the event of certain material breaches defined in the agreement and may be terminated voluntarily by Exotech Bio upon 90 days written notice to the Company.
AD Skincare Collaboration
In June 2016, the Company entered into an ECC with AD Skincare, Inc. ("AD Skincare"), an affiliate of Harvest and a related party. AD Skincare was formed for the purpose of entering into the ECC and developing an advanced topical delivery system to improve the efficacy of biologically active ingredients aimed at improving signs of aging human skin. Upon execution of the ECC, the Company received a technology access fee in the form of equity in AD Skincare valued at $4,333 as upfront consideration. The Company is also entitled to up to $2,000 of potential payments for substantive and non-substantive development milestones for each product developed under the ECC, as well as up to $17,000 in one-time commercial milestones. The Company receives reimbursement payments for research and development services provided pursuant to the ECC. AD Skincare will pay the Company royalties as a percentage in the low double-digits on the quarterly net sales of products developed under the ECC, as defined in the agreement. AD Skincare is responsible for the development and commercialization of the product candidates. The term of the ECC commenced in June 2016 and continues until terminated pursuant to the ECC agreement. The ECC may be terminated by either party in the event of certain material breaches defined in the agreement and may be terminated voluntarily by AD Skincare upon 90 days written notice to the Company.
Fibrocell Science Collaborations
In October 2012, the Company entered into an ECC ("Fibrocell ECC 1") with Fibrocell Science, Inc. ("Fibrocell"), a then publicly traded cell and gene therapy company focused on diseases affecting the skin and connective tissue and a related party until the acquisition of Fibrocell by a third party as discussed below. Pursuant to Fibrocell ECC 1, at the transaction effective date, Fibrocell received a license to the Company's technology platform to develop and commercialize genetically modified and non-genetically modified autologous fibroblasts and autologous dermal cells in the United States of America. Upon execution of Fibrocell ECC 1, the Company received a technology access fee of 87,835 shares of Fibrocell's common stock valued at $7,576 as upfront consideration. The Company receives reimbursement payments for research and development services provided pursuant to the agreement during Fibrocell ECC 1 and manufacturing services for Company materials provided to Fibrocell during Fibrocell ECC 1. On a quarterly basis, Fibrocell will pay the Company royalties of 7% of net sales up to $25,000 and 14% of net sales above $25,000 on each product developed from Fibrocell ECC 1, as defined in the agreement. If Fibrocell uses the Company's technology platform to improve the production of a current or new Fibrocell product not developed from Fibrocell ECC 1, Fibrocell will pay the Company quarterly royalties equal to 33% of the cost of goods sold savings generated by the improvement, as defined in the agreement.
Fibrocell is responsible for conducting preclinical and clinical development of product candidates associated with Fibrocell ECC 1, as well as for other aspects of commercialization and manufacturing of the product candidates. The term of the ECC commenced in October 2012 and continues until terminated pursuant to the ECC agreement. The ECC may be terminated by

either party in the event of certain material breaches defined in the agreement and may be terminated voluntarily by Fibrocell upon 90 days written notice to the Company.
In June 2013, the Company and Fibrocell entered into an amendment to the Fibrocell ECC 1. The amendment expanded the field of use defined in the ECC agreement. Under the terms of the amendment to the Fibrocell ECC 1, the Company received 82,919 shares of Fibrocell's common stock valued at $7,612 as a supplemental technology access fee.
In April 2019, Fibrocell entered into a collaboration agreement with a Castle Creek Pharmaceuticals, LLC to develop and commercialize a product in the field of the Fibrocell ECC 1. Pursuant to the terms of the Fibrocell ECC 1, the Company is entitled to 50% of sublicensing fees and accordingly, received $3,750 during the year ended December 31, 2019.
In December 2015, the Company entered into a second ECC with Fibrocell ("Fibrocell ECC 2"). Pursuant to the ECC, at the transaction effective date, Fibrocell received a license to the Company's technology platform to develop and commercialize genetically-modified fibroblasts to treat chronic inflammatory and degenerative diseases of the joint, including arthritis and related conditions. Upon execution of the ECC, the Company received a technology access fee of $10,000. The Company is also entitled to (i) up to $30,000 of potential one-time payments for certain development and regulatory milestones for the first product developed under Fibrocell ECC 2, (ii) up to $30,000 of potential payments for certain regulatory milestones for each additional product developed under Fibrocell ECC 2, and (iii) up to $22,500 of potential payments for certain sales milestones for each product developed under Fibrocell ECC 2. The Company receives reimbursement payments for research and development services provided pursuant to the agreement during the ECC and manufacturing services for Company materials provided to Fibrocell during the ECC. Fibrocell will pay the Company royalties as a percentage in the low double-digits of net sales derived from the sale of products developed from Fibrocell ECC 2, as defined in the agreement.
Fibrocell is responsible for conducting preclinical and clinical development of product candidates associated with Fibrocell ECC 2, as well as for other aspects of commercialization and manufacturing of the product candidates. The term of the ECC commenced in December 2015 and continues until terminated pursuant to the ECC agreement. The ECC may be terminated by either party in the event of certain material breaches defined in the agreement and may be terminated voluntarily by Fibrocell upon 90 days written notice to the Company.
In December 2019, Fibrocell was acquired by Castle Creek Pharmaceutical Holdings, Inc. ("Castle Creek"), a privately held company focused on developing medicine for rare genetic disorders. See Note 18 for further discussion of the impact of the Castle Creek acquisition on the Company's investments in Fibrocell.
Thrive Agrobiotics Collaboration
In September 2015, the Company entered into an ECC with Thrive Agrobiotics, Inc. ("Thrive Agrobiotics"), an affiliate of Harvest and a related party. Thrive Agrobiotics was formed for the purpose of entering into the ECC and developing and commercializing products to improve the overall growth and feed efficiency in piglets. Upon execution of the ECC, the Company received a technology access fee in the form of equity in Thrive Agrobiotics valued at $1,667 as upfront consideration. The Company is also entitled to up to $5,500 of potential payments for development and commercial milestones for each product developed under the ECC. The Company receives reimbursement payments for research and development services provided pursuant to the agreement during the ECC. Thrive Agrobiotics will pay the Company royalties as a percentage in the lower-double digits on the quarterly gross profits of product sales from products developed under the ECC, as defined in the agreement. Thrive Agrobiotics is responsible for the development and commercialization of the product candidates. The term of the ECC commenced in September 2015 and continues until terminated pursuant to the ECC agreement. The ECC may be terminated by either party in the event of certain material breaches defined in the agreement and may be terminated voluntarily by Thrive Agrobiotics upon 90 days written notice to the Company.

Deferred Revenue
Deferred revenue primarily consists of consideration received for the Company's collaboration and licensing agreements. Deferred revenue from continuing operations consists of the following:
 December 31,
 2019 2018
Collaboration and licensing agreements$50,593
 $54,323
Prepaid product and service revenues2,805
 2,933
Other435
 560
Total$53,833
 $57,816
Current portion of deferred revenue$5,697
 $11,088
Long-term portion of deferred revenue48,136
 46,728
Total$53,833
 $57,816

The following table summarizes the remaining balance of deferred revenue from continuing operations associated with upfront and milestone payments for each significant counterparty to a collaboration or licensing agreement as of December 31, 2019 and 2018, including the estimated remaining performance period as of December 31, 2019.
 Average Remaining Performance Period (Years) December 31,
  2019 2018
ZIOPHARM Oncology, Inc.0.0 $
 $1,214
Oragenics, Inc.4.4 2,864
 1,785
Intrexon Energy Partners, LLC4.2 8,362
 10,267
Intrexon Energy Partners II, LLC4.9 12,843
 14,060
Fibrocell Science, Inc.4.9 17,697
 17,519
Harvest start-up entities (1)5.2 6,993
 7,644
Other2.8 1,834
 1,834
Total  $50,593
 $54,323

(1)As of December 31, 2019 and 2018, the balance of deferred revenue for collaborations with Harvest start-up entities includes Exotech Bio, AD Skincare, and Thrive Agrobiotics.
7. Short-term Investments
The Company's investments are classified as available-for-sale. The following table summarizes the amortized cost, gross unrealized gains and losses, and fair value of available-for-sale investments as of December 31, 2019:
 
Amortized
Cost
 
Gross
Unrealized
Gains
 
Gross
Unrealized
Losses
 
Aggregate
Fair Value
United States government debt securities$8,989
 $7
 $
 $8,996
Certificates of deposit264
 
 
 264
Total$9,253
 $7
 $
 $9,260


The following table summarizes the amortized cost, gross unrealized gains and losses, and fair value of available-for-sale investments as of December 31, 2018:
 
Amortized
Cost
 
Gross
Unrealized
Gains
 
Gross
Unrealized
Losses
 
Aggregate
Fair Value
United States government debt securities$119,401
 $
 $(61) $119,340
Certificates of deposit274
 
 
 274
Total$119,675
 $
 $(61) $119,614

See Notes 2 and 8 for further discussion on the Company's method for determining the fair value of its assets.
As of December 31, 2019, all of the available-for-sale investments were due within one year based on their contractual maturities.
Changes in market interest rates and bond yields cause certain investments to fall below their cost basis, resulting in unrealized losses on investments. The unrealized losses of the Company's investments as of December 31, 2018 were primarily a result of unfavorable changes in interest rates subsequent to the initial purchase of these investments, and there were none as of December 31, 2019.
As of December 31, 2018, the Company did not consider any of its debt security investments to be other-than-temporarily impaired. When evaluating its debt security investments for other-than-temporary impairment, the Company reviews factors such as the length of time and extent to which fair value has been below its cost basis, the financial condition of the issuer, the Company's ability and intent to hold the security and whether it is more likely than not that it will be required to sell the investment before recovery of its cost basis.
8. Fair Value Measurements
The carrying amount of cash and cash equivalents, restricted cash, receivables, accounts payable, accrued compensation and benefits, other accrued liabilities, and related party payables approximate fair value due to the short maturity of these instruments.
Assets
The following table presents the placement in the fair value hierarchy of financial assets that are measured at fair value on a recurring basis, including the items for which the fair value option has been elected, as of December 31, 2019:
 
Quoted Prices in Active Markets
(Level 1)
 
Significant Other Observable Inputs
(Level 2)
 
Significant Unobservable Inputs
(Level 3)
 December 31,
2019
Assets       
United States government debt securities$
 $8,996
 $
 $8,996
Other
 264
 
 264
Total$
 $9,260
 $
 $9,260

The following table presents the placement in the fair value hierarchy of financial assets that are measured at fair value on a recurring basis, including the items for which the fair value option has been elected, as of December 31, 2018:
 
Quoted Prices in Active Markets
(Level 1)
 
Significant Other Observable Inputs
(Level 2)
 
Significant Unobservable Inputs
(Level 3)
 December 31,
2018
Assets       
United States government debt securities$
 $119,340
 $
 $119,340
Equity securities950
 74
 
 1,024
Other
 394
 191
 585
Total$950
 $119,808
 $191
 $120,949

The method used to estimate the fair value of the Level 1 assets in the tables above is based on observable market data as these equity securities are publicly-traded. The method used to estimate the fair value of the Level 2 short-term debt investments in the tables above is based on professional pricing sources for identical or comparable instruments, rather than direct observations of quoted prices in active markets. The methods used to estimate the fair value of the Level 2 equity securities in the tables above are based on the quoted market price of the publicly-traded security, adjusted for adjusted for a discount for lack of marketability. The Company owned preferred stock in certain of its collaborators, and these investments were classified as Level 3 within the fair value hierarchy. See Note 18 for additional discussion of these investments in preferred stock.
The following table summarizes the changes in the Level 3 investments during the years ended December 31, 2019 and 2018.
 2019 2018
Beginning balance$191
 $161,225
Retained interest in deconsolidated subsidiary14,239
 
Dividend income from investments in preferred stock48
 14,841
Net unrealized appreciation (depreciation) in the fair value of the investments in equity securities and preferred stock7,446
 (17,499)
Return of preferred stock
 (158,376)
Proceeds from sale of equity securities(21,587) 
Proceeds to be received from preferred stock(337) 
Ending balance$
 $191

There were no transfers of assets between levels of the fair value hierarchy during the year ended December 31, 2019.
Liabilities
The carrying values of the Company's long-term debt, excluding the Convertible Notes, approximates fair value due to the length of time to maturity and/or the existence of interest rates that approximate prevailing market rates.
The calculated fair value of the Convertible Notes (Note 12) was approximately $126,000 and $141,000 as of December 31, 2019 and 2018, respectively, and is based on the recent third-party trades of the instrument as of the balance sheet dates. The fair value of the Convertible Notes is classified as Level 2 within the fair value hierarchy as there is not an active market for the Convertible Notes, however, third-party trades of the instrument are considered observable inputs. The Convertible Notes are reflected on the accompanying consolidated balance sheets at amortized cost, which was $157,560 and $148,101 as of December 31, 2019 and 2018, respectively.
The Company's contingent consideration liabilities (Note 4) are measured on a recurring basis and were $585 as of December 31, 2019 and 2018. These fair value measurements were based on significant inputs not observable in the market and thus represented a Level 3 measurement. A significant change in unobservable inputs could result in a significant impact on the fair value of the Company's contingent consideration liabilities. The contingent consideration liabilities are remeasured to fair

value at each reporting date until the contingencies are resolved, and those changes in fair value are recognized in earnings. There were no changes in the fair value of the Level 3 liabilities during the years ended December 31, 2019 and 2018.
9. Inventory
Inventory from continuing operations consists of the following:
 December 31,
 2019 2018
Supplies, embryos and other production materials$2,282
 $3,857
Work in process3,702
 4,391
Livestock7,553
 10,167
Feed2,560
 2,160
Total inventory$16,097
 $20,575

10. Property, Plant and Equipment, Net
Property, plant and equipment consist of the following:
 December 31,
 2019 2018
Land and land improvements$9,814
 $10,001
Buildings and building improvements11,765
 20,099
Furniture and fixtures1,315
 1,812
Equipment54,448
 63,947
Leasehold improvements12,821
 14,219
Breeding stock5,191
 4,582
Computer hardware and software9,434
 10,789
Construction and other assets in progress5,313
 10,497
 110,101
 135,946
Less: Accumulated depreciation and amortization(49,132) (49,050)
Property, plant and equipment, net$60,969
 $86,896

The deconsolidation of AquaBounty (Note 1) in April 2019 resulted in the reduction of $24,186 of property, plant and equipment, net on the accompanying consolidated balance sheet during the year ended December 31, 2019.
During the year ended December 31, 2019, the Company recorded $448 of property, plant and equipment impairment losses in conjunction with the closing of 2 of its operating units during the third quarter of 2019.
Depreciation expense was $11,869, $12,439 and $10,137 for the years ended December 31, 2019, 2018 and 2017, respectively.
11. Goodwill and Intangible Assets, Net
The changes in the carrying amount of goodwill for the years ended December 31, 2019 and 2018, are as follows:
 2019 2018
Beginning of year$93,627
 $93,751
Impairment(29,820) 
Foreign currency translation adjustments(53) (124)
End of year$63,754
 $93,627

The Company had $43,643 and $13,823 of cumulative impairment losses as of December 31, 2019 and 2018, respectively.

For the year ended December 31, 2019, the Company recorded $29,820 of goodwill impairment charges. During the Company's annual goodwill impairment test, the Company determined it was more-likely-than-not that the fair value of the Trans Ova reporting unit was less than its carrying amount. As a result, the Company compared the carrying amount of the Trans Ova reporting unit to the fair value and determined the carrying amount exceeded the fair value resulting in a $29,642 goodwill impairment charge for the excess carrying value. Additionally, the Company recorded $178 of goodwill impairment charges in conjunction with the closing of 2 of its reporting units in the third quarter of 2019.
See Note 20 for information regarding goodwill by reportable segment.
Intangible assets consist of the following as of December 31, 2019:
 Weighted Average Useful Life (Years) Gross Carrying Amount Accumulated Amortization Net
Patents, developed technologies and know-how15.8 $90,659
 $(26,619) $64,040
Customer relationships6.5 10,700
 (8,440) 2,260
Trademarks8.4 5,900
 (3,854) 2,046
Total  $107,259
 $(38,913) $68,346

Intangible assets consist of the following as of December 31, 2018:
 Gross Carrying Amount Accumulated Amortization Net
Patents, developed technologies and know-how$106,042
 $(23,674) $82,368
Customer relationships10,700
 (7,565) 3,135
Trademarks6,800
 (3,341) 3,459
Total$123,542
 $(34,580) $88,962

In the fourth quarter of 2018, the Company recorded a $16,027 loss related to the abandonment of certain developed technologies that the Company ceased using in the fourth quarter of 2018. The Company does not expect to use these technologies as a defensive asset or market them for sale in the future. Because these technologies were used in combination with other technologies, the identifiable cash flows did not result in an impairment; however, because the Company made a decision to abandon the assets, it recorded the charge to research and development expense.
The deconsolidation of AquaBounty (Note 1) in April 2019 resulted in the reduction of $11,567 of net intangible assets, primarily related to patents, developed technologies, and know-how, on the accompanying consolidated balance sheet during the year ended December 31, 2019.
Amortization expense was $7,920, $11,666 and $11,472 for the years ended December 31, 2019, 2018 and 2017, respectively. Estimated aggregate amortization expense for definite lived intangible assets is expected to be as follows:
2020$7,501
20217,313
20226,518
20235,350
20245,066
Thereafter36,598
Total$68,346


12. Lines of Credit and Long-Term Debt
Lines of Credit
Trans Ova has a $5,000 revolving line of credit with First National Bank of Omaha that matures on April 1, 2020. The line of credit bears interest at the greater of 2.95% above the London Interbank Offered Rate or 3.00%, and the actual rate was 4.76% as of December 31, 2019. As of December 31, 2019, there was an outstanding balance of $1,695. The amount available under the line of credit is based on eligible accounts receivable and inventory up to the maximum principal amount, and was $3,235 as of December 31, 2019. The line of credit is collateralized by certain of Trans Ova's assets and contains certain restricted covenants that include maintaining minimum tangible net worth and working capital and maximum allowable annual capital expenditures. Trans Ova was in compliance with these covenants as of December 31, 2019.
Exemplar has a $700 revolving line of credit with American State Bank that matures on October 31, 2020. The line of credit bears interest at 5.50% per annum. As of December 31, 2019, there was an outstanding balance of $227.
Long-Term Debt
Long-term debt consists of the following:
 December 31,
 2019 2018
Convertible debt$213,771
 $203,391
Notes payable4,089
 4,551
Other131
 3,753
Long-term debt217,991
 211,695
Less current portion31,670
 479
Long-term debt, less current portion$186,321
 $211,216

The deconsolidation of AquaBounty (Note 1) in April 2019 resulted in the reduction of $4,030 of long-term debt on the accompanying consolidated balance sheet during the year ended December 31, 2019.
Convertible Debt
Precigen Convertible Notes
In July 2018, Precigen completed a registered underwritten public offering of $200,000 aggregate principal amount of Convertible Notes and issued the Convertible Notes under an indenture (the "Base Indenture") between Precigen and The Bank of New York Mellon Trust Company, N.A., as trustee, as supplemented by the First Supplemental Indenture (together with the Base Indenture, the "Indenture"). Precigen received net proceeds of $193,958 after deducting underwriting discounts and offering expenses of $6,042.
The Convertible Notes are senior unsecured obligations of Precigen and bear interest at a rate of 3.50% per year, payable semiannually in arrears on January 1 and July 1 of each year beginning on January 1, 2019. The Convertible Notes mature on July 1, 2023, unless earlier repurchased or converted. The Convertible Notes are convertible into cash, shares of Precigen's common stock or a combination of cash and shares, at Precigen's election. The initial conversion rate of the Convertible Notes is 58.6622 shares of Precigen common stock per $1,000 principal amount of Convertible Notes (equivalent to an initial conversion price of approximately $17.05 per share of common stock). The conversion rate is subject to adjustment upon the occurrence of certain events, but will not be adjusted for any accrued and unpaid interest. In addition, following certain corporate events that occur prior to the maturity date as defined in the Indenture, Precigen will increase the conversion rate for a holder who elects to convert its Convertible Notes in connection with such a corporate event in certain circumstances. Prior to April 1, 2023, the holders may convert the Convertible Notes at their option only upon the satisfaction of the following circumstances:
During any calendar quarter commencing after the calendar quarter ended on September 30, 2018, if the last reported sales price of Precigen's common stock for at least 20 trading days (whether or not consecutive) during the last 30 consecutive trading days of the immediately preceding calendar quarter is greater than or equal to 130% of the conversion price on each applicable trading day;

During the 5 business day period after any 5 consecutive trading day period in which the trading price, as defined in the Indenture, for the Convertible Notes is less than 98% of the product of the last reported sales price of Precigen's common stock and the conversion rate for the Convertible Notes on each such trading day; or
Upon the occurrence of specified corporate events as defined in the Indenture.
None of the above events allowing for conversion prior to April 1, 2023 occurred during the year ended December 31, 2019. On or after April 1, 2023 until June 30, 2023, holders may convert their Convertible Notes at any time. Precigen may not redeem the Convertible Notes prior to the maturity date.
If Precigen undergoes a fundamental change, as defined in the Indenture, holders of the Convertible Notes may require Precigen to repurchase for cash all or any portion of their Convertible Notes at a fundamental change repurchase price equal to 100% of the principal amount of the Convertible Notes to be repurchased, plus accrued and unpaid interest to, but excluding, the fundamental change repurchase date. The Indenture contains customary events of default, as defined in the agreement, and, if any of the events occur, could require repayment of a portion or all of the Convertible Notes, including accrued and unpaid interest. Additionally, the Indenture provides that Precigen shall not consolidate with or merge with or into, or sell, convey, transfer or lease all or substantially all of its properties and assets to, another entity, unless (i) the surviving entity is organized under the laws of the United States and such entity expressly assumes all of Precigen's obligations under the Convertible Notes and the Indenture; and (ii) immediately after such transaction, no default or event of default has occurred and is continuing under the Indenture.
The net proceeds received from the issuance of the Convertible Notes were initially allocated between long-term debt, the liability component, in the amount of $143,723, and additional paid-in capital, the equity component, in the amount of $50,235. Additional paid-in capital was further reduced by $13,367 of deferred taxes resulting from the difference between the carrying amount and the tax basis of the Convertible Notes that is created by the equity component, which also resulted in deferred tax benefit recognized from the reversal of valuation allowances on the then current year domestic operating losses in the same amount (Note 13). As of December 31, 2019, the outstanding principal balance on the Convertible Notes was $200,000 and the carrying value of long-term debt was $157,560. The effective interest rate on the Convertible Notes, including amortization of the long-term debt discount and debt issuance costs, is 11.02%. As of December 31, 2019, the unamortized long-term debt discount and debt issuance costs totaled $42,440.
The components of interest expense related to the Convertible Notes were as follows:
 Year Ended December 31,
 2019 2018
Cash interest expense$7,000
 $3,462
Non-cash interest expense9,459
 4,378
Total interest expense$16,459
 $7,840

Accrued interest of $3,500 is included in other accrued liabilities on the accompanying consolidated balance sheet as of December 31, 2019.
ActoBio Convertible Notes
In September 2018, ActoBio issued $30,000 of convertible promissory notes (the "ActoBio Notes") to a related party in conjunction with an asset acquisition with Harvest (Note 4). The ActoBio Notes have a maturity date of September 6, 2020, accrue interest at 3.0% compounded annually ("accrued PIK interest"), are convertible into shares of ActoBio common stock at any time by the holder, and are automatically convertible in shares of ActoBio common stock upon the closing of certain financing events as defined in the ActoBio Notes. If the ActoBio Notes have not been converted to ActoBio common stock by the maturity date, ActoBio can pay the principal and accrued PIK interest in cash or with shares of Precigen common stock at its election. There are no embedded features that are required to be separated from the debt host and accounted for separately, so the ActoBio Notes were recorded at $30,000. Interest expense was $921 and $290 for the years ended December 31, 2019 and 2018, respectively. As of December 31, 2019, the carrying value of the ActoBio Notes, including accrued interest, was $31,211.

Precigen and PGEN Therapeutics Convertible Note
In December 2018, in conjunction with the Merck Purchase Agreement (Note 6), Precigen and PGEN Therapeutics jointly and severally issued a $25,000 convertible note (the "Merck Note") to Ares Trading in exchange for cash. The Merck Note has a maturity date of June 28, 2021 and will be converted to Precigen common stock on the first trading day following maturity if not otherwise converted prior to that date. Prior to maturity, Ares Trading may convert the Merck Note, at their election, into (i) Precigen common stock at any time, (ii) Precigen common stock upon the Company's closing of qualified financing as defined in the agreement, (iii) PGEN Therapeutics equity upon PGEN Therapeutics closing a qualified financing as defined in the agreement, and (iv) PGEN Therapeutics common stock upon the closing of a qualified initial public offering ("IPO") of PGEN Therapeutics common stock. In the event of a conversion upon a qualified IPO, the conversion price will be 90% of the IPO price. There is no stated interest rate on the Merck Note. However, in the event Ares Trading elects to convert the Merck Note into PGEN Therapeutics equity, the Merck Note accrues interest at a rate of 5% per year ("PIK interest") and will be converted with the outstanding principal. The Company determined that the potential PIK interest and IPO conversion discount represented embedded derivatives requiring bifurcation from the debt host but had no significant value as of December 31, 2019.
Notes Payable
Trans Ova has a note payable to American State Bank that matures in April 2033 and had an outstanding principal balance of $4,077 as of December 31, 2019. Trans Ova pays monthly installments of $39, which includes interest at 3.95%. The note payable is collateralized by certain of Trans Ova's real estate and non-real estate assets.
Future Maturities
Future maturities of long-term debt are as follows:
2020$31,670
202125,328
2022341
2023200,355
2024369
Thereafter2,368
Total$260,431

13. Income Taxes
The components of loss from continuing operations before income taxes are presented below:
 Year Ended December 31,
 2019 2018 2017
Domestic$(205,413) $(428,410) $(24,965)
Foreign(3,274) (1,332) (53,402)
Loss from continuing operations before income taxes$(208,687) $(429,742) $(78,367)


The components of income tax expense (benefit) from continuing operations are presented below:
 Year Ended December 31,
 2019 2018 2017
United States federal income taxes:     
Current$
 $(31) $27
Deferred(561) (11,855) (523)
Foreign income taxes:     
Current34
 68
 (4)
Deferred(230) 635
 2,308
State income taxes:     
Current
 113
 
Deferred(173) (4,355) 264
Income tax expense (benefit) from continuing operations$(930) $(15,425) $2,072

Income tax expense (benefit) from continuing operations for the years ended December 31, 2019, 2018 and 2017 differed from amounts computed by applying the applicable United States federal corporate income tax rate of 21% for 2019 and 2018, and 34% for 2017, to loss before income taxes as a result of the following:
 2019 2018 2017
Computed statutory income tax benefit from continuing operations$(43,824) $(90,246) $(26,645)
State and provincial income tax benefit, net of federal income taxes(7,298) (23,347) (1,888)
Nondeductible stock based compensation10,303
 4,696
 3,391
Nondeductible officer compensation595
 294
 476
Gain on dividend distribution of AquaBounty common stock
 
 3,965
Impairment of goodwill273
 
 4,700
Research and development tax incentives(1,772) (185) (359)
Acquisition and internal restructuring transaction costs260
 52
 354
Provisional impact of the Tax Act
 
 85,288
Enacted changes in foreign tax rates and foreign tax reforms
 
 2,021
Reacquired in-process research and development
 2,696
 
Change in deferred state tax rate
 8,666
 
United States-foreign rate differential(76) 215
 410
Other, net(72) (3,517) (189)
 (41,611) (100,676) 71,524
Change in valuation allowance for deferred tax assets40,681
 85,251
 (69,452)
Total income tax expense (benefit) from continuing operations$(930) $(15,425) $2,072


The tax effects of temporary differences that comprise the deferred tax assets and liabilities included in continuing operations as of December 31, 2019 and 2018, are as follows:
 2019 2018
Deferred tax assets   
Allowance for doubtful accounts$2,140
 $1,490
Inventory415
 614
Equity securities and investments in affiliates11,933
 30,241
Property, plant and equipment1,830
 
Intangible assets85,308
 78,858
Accrued liabilities3,385
 4,412
Lease liabilities10,035
 
Stock-based compensation19,389
 28,885
Deferred revenue14,876
 16,297
Research and development tax credits9,686
 10,558
Investments in subsidiaries included in discontinued operations8,592
 
Net operating and capital loss carryforwards196,663
 129,291
Total deferred tax assets364,252
 300,646
Less: Valuation allowance349,008
 292,217
Net deferred tax assets15,244
 8,429
Deferred tax liabilities   
Property, plant and equipment
 149
Right-of-use assets8,091
 
Intangible assets
 
Long-term debt9,987
 12,136
Total deferred tax liabilities18,078
 12,285
Net deferred tax liabilities included in continuing operations$(2,834) $(3,856)

Activity within the valuation allowance for deferred tax assets included in continuing operations during the years ended December 31, 2019, 2018 and 2017 was as follows:
 2019 2018 2017
Valuation allowance at beginning of year$292,217
 $211,078
 $253,549
Increase (decrease) in valuation allowance as a result of     
Mergers and acquisitions, net
 418
 
Deconsolidation of AquaBounty(3,504) 
 
Establishment of deferred taxes for subsidiaries included in discontinued operations8,592
 
 
Current year continuing operations40,681
 107,284
 17,735
Discontinued operations treated as asset sales10,585
 3,832
 6,940
Adoption of ASC 842512
 
 
Adoption of ASC 606
 (7,477) 
Adoption of ASU 2016-09
 
 17,843
Provisional impact of the Tax Act
 
 (87,473)
Equity component of long-term debt
 (13,367) 
Change in deferred state tax rate
 (8,666) 
Changes in foreign tax rates and foreign tax reforms
 
 1,494
Foreign currency translation adjustment(75) (885) 990
Valuation allowance at end of year$349,008
 $292,217
 $211,078


In assessing the realizability of deferred tax assets, management considers whether it is more likely than not that some portion or all of the deferred tax assets will not be realized. The ultimate realization of deferred tax assets is dependent upon the generation of future taxable income during the periods in which those temporary differences become deductible. Management considers the scheduled reversal of deferred tax liabilities, projected future taxable income and tax planning strategies in making this assessment. Due to the Company and its subsidiaries' histories of net losses incurred from inception, any corresponding net domestic and certain foreign deferred tax assets have been fully reserved as the Company and its subsidiaries cannot sufficiently be assured that these deferred tax assets will be realized. The components of the deferred tax assets and liabilities as of the date of the mergers and acquisitions by the Company prior to consideration of the valuation allowance are substantially similar to the components of deferred tax assets presented herein.
The Company's past issuances of stock and mergers and acquisitions have resulted in ownership changes as defined in Section 382 of the Internal Revenue Code of 1986, as amended ("Section 382"). As a result, utilization of portions of the net operating losses may be subject to annual limitations, however as of December 31, 2019, all such limited losses applicable to Precigen, other than losses inherited via acquisition, have been fully utilized. As of December 31, 2019, approximately $42,100 of the Company's domestic net operating losses were inherited via acquisition, including $13,376 acquired via the acquisition of GenVec, and are limited based on the value of the target at the time of the transaction.
As of December 31, 2019, the Company has net operating loss carryforwards for United States federal income tax purposes of approximately $568,800 available to offset future taxable income, including approximately $316,100 generated after 2017, United States capital loss carryforwards of approximately $111,600, and federal and state research and development tax credits of approximately $9,600, prior to consideration of annual limitations that may be imposed under Section 382. Net operating loss carryforwards generated prior to 2018 will begin to expire in 2022, and capital loss carryforwards will expire if unutilized by 2024. The Company's foreign subsidiaries included in continuing operations have foreign loss carryforwards of approximately $72,800, most of which do not expire.
As of December 31, 2019, the Company's direct foreign subsidiaries included in continuing operations had accumulated deficits of approximately $14,900. Future distributions of accumulated earnings of the Company's direct foreign subsidiaries may be subject to United States income and foreign withholding taxes.
In the year ended December 31, 2017, the Company recorded a net provisional income tax benefit of $2,185 upon enactment of the Tax Act, which is comprised of several items. Amounts related to the remeasurement of most of the Company's domestic deferred tax assets as a result of the United States corporate rate change to 21% as part of the Tax Act are $87,473, which was fully offset by a reduction in the Company's valuation allowance. The Company's net United States deferred tax liability that is not offset by a valuation allowance was similarly written down, and the Company recorded a provisional deferred tax benefit of $1,730. The Company also recorded a provisional current tax benefit of $455 related to the expected refundability of accumulated corporate alternative minimum tax credits. The Company provisionally estimated its transition tax exposure to be 0, as any accumulated earnings in foreign subsidiaries are offset by accumulated deficits in other foreign subsidiaries. The Company completed its accounting for the Tax Act in the fourth quarter of 2018, and there were no significant adjustments to the previously recorded provisional amounts.
Additionally, in December 2017, Belgium enacted significant tax reform measures, the most significant of which to the Company is the limitation on the utilization of accumulated losses in years after 2017. After that date, loss carryforwards can only be used to offset 70% of taxable income that exceeds a certain threshold. As a result, the Company recorded adjustments to its net deferred tax assets and valuation allowances. These adjustments resulted in a net deferred tax liability of $2,307, which was recorded as a component of deferred tax expense for the year ended December 31, 2017.
The Company and its subsidiaries do not have material unrecognized tax benefits as of December 31, 2019. The Company does not anticipate significant changes in the amount of unrecognized tax benefits in the next 12 months. The Company's tax returns for years 2004 and forward are subject to examination by federal or state tax authorities due to the carryforward of unutilized net operating and capital losses and research and development tax credits.
14. Shareholders' Equity
Issuances of Precigen Common Stock
In January 2018, Precigen closed a public offering of 6,900,000 shares of its common stock, including 1,000,000 shares of common stock purchased by affiliates of Third Security. The net proceeds of the offering were $82,374, after deducting underwriting discounts of $3,688 and offering expenses of $188, all of which were capitalized.

In December 2017, the Company entered into a securities purchase agreement with an affiliate of Third Security for the private placement of 1,207,980 shares of the Company's common stock for gross proceeds of $13,686.
Share Lending Agreement
Concurrently with the offering of the Convertible Notes (Note 12), Precigen entered into a share lending agreement (the "Share Lending Agreement") with J.P. Morgan Securities LLC (the "Share Borrower") pursuant to which Precigen loaned and delivered 7,479,431 shares of its common stock (the "Borrowed Shares") to the Share Borrower. The Share Lending Agreement will terminate, and the Borrowed Shares will be returned to Precigen within five business days of such termination, upon (i) termination by the Share Borrower or (ii) the earliest to occur of (a) October 1, 2023 and (b) the date, if any, on which the Share Lending Agreement is either mutually terminated or terminated by one party upon a default by the other party. The Share Borrower maintains collateral in the form of cash or certain permitted non-cash collateral with a market value at least equal to the market value of the Borrowed Shares as security for the obligation of the Share Borrower to return the Borrowed Shares when required by the terms above. The Borrowed Shares were offered and sold to the public at a price of $13.37 per share under a registered offering (the "Borrowed Shares Offering"). Precigen did not receive any proceeds from the sale of the Borrowed Shares to the public or any lending fees from the Share Lending Agreement. The Share Borrower or its affiliates received all the proceeds from the sale of the Borrowed Shares to the public. Affiliates of Third Security purchased all of the shares of common stock in the Borrowed Shares Offering.
The Share Lending Agreement was entered into at fair value and met the requirements for equity classification. Therefore, the value is netted against the issuance of the Borrowed Shares in additional paid-in capital. Additionally, the Borrowed Shares are not included in the denominator for loss per share attributable to Precigen shareholders unless the Share Borrower defaults on the Share Lending Agreement.
Issuances of AquaBounty Common Stock
In March 2019, AquaBounty completed an underwritten public offering that resulted in net proceeds of $6,611 after deducting discounts, fees, and expenses. See Note 1 for additional discussion of issuances of AquaBounty common stock in April 2019, which resulted in the deconsolidation of AquaBounty.
In January 2018, AquaBounty completed an underwritten public offering that resulted in net proceeds of $10,616 after deducting discounts, fees and expenses. As part of this offering, Precigen purchased $5,000 of additional AquaBounty common stock. In October 2018, certain investors exercised warrants acquired from the January 2018 offering, resulting in additional net proceeds of $4,316, including $3,077 from Precigen.
In January 2017, in conjunction with the listing by AquaBounty of their common stock on the Nasdaq Stock Market, Precigen purchased $25,000 of additional AquaBounty common stock and subsequently distributed shares of AquaBounty common stock as a dividend to Precigen shareholders.
Dividends to Shareholders
In January 2017, the Company distributed to its shareholders 1,776,557 shares of AquaBounty common stock valued at $22,385. The distribution constituted a dividend to shareholders of record as of January 9, 2017. In connection with the distribution and pursuant to the terms of the Company's equity incentive plans, the conversion terms of all outstanding options for shares of the Company's common stock as of January 9, 2017 were adjusted to reflect the value of the distribution with respect to shares of the Company's common stock by decreasing the exercise prices and increasing the number outstanding options. This adjustment resulted in 46,766 additional outstanding options at a weighted average exercise price of $31.11.
Components of Accumulated Other Comprehensive Loss
The components of accumulated other comprehensive loss are as follows:
 December 31,
 2019 2018
Unrealized gain (loss) on investments$7
 $(61)
Loss on foreign currency translation adjustments(27,475) (28,551)
Total accumulated other comprehensive loss$(27,468) $(28,612)


15. Share-Based Payments
The Company measures the fair value of stock options and RSUs issued to employees and nonemployees as of the grant date for recognition of stock-based compensation expense. Stock-based compensation expense for employees and nonemployees is recognized over the requisite service period, which is typically the vesting period. Stock-based compensation costs included in the consolidated statements of operations are presented below:
 Year Ended December 31,
 2019 2018 2017
Cost of products$20
 $78
 $116
Cost of services220
 237
 322
Research and development4,784
 6,850
 7,654
Selling, general and administrative11,419
 25,259
 28,801
Discontinued operations2,507
 3,872
 4,683
Total$18,950
 $36,296
 $41,576

Precigen Stock Option Plans
In April 2008, Precigen adopted the 2008 Equity Incentive Plan (the "2008 Plan") for employees and nonemployees pursuant to which Precigen's board of directors granted share based awards, including stock options, to officers, key employees and nonemployees. Upon the effectiveness of the 2013 Omnibus Incentive Plan (the "2013 Plan"), 0 new awards may be granted under the 2008 Plan. As of December 31, 2019, there were 378,409 stock options outstanding under the 2008 Plan.
Precigen adopted the 2013 Plan for employees and nonemployees pursuant to which Precigen's board of directors may grant share-based awards, including stock options, and shares of common stock, to employees, officers, consultants, advisors, and nonemployee directors. The 2013 Plan became effective in August 2013, and as of December 31, 2019, there were 25,000,000 shares authorized for issuance under the 2013 Plan, of which 8,643,873 stock options and 1,781,982 RSUs were outstanding and 8,991,369 shares were available for grant.
In April 2019, Precigen adopted the 2019 Incentive Plan for Non-Employee Service Providers (the "2019 Plan"), which became effective upon shareholder approval in June 2019. The 2019 Plan permits the grant of share-based awards, including stock options, restricted stock awards, and RSUs, to non-employee service providers, including board members. As of December 31, 2019, there were 5,000,000 shares authorized for issuance under the 2019 Plan, of which 0 awards were outstanding and 4,087,444 were available for grant.
Stock options may be granted with an exercise price equal to or greater than the stock's fair market value at the date of grant. Stock options may be granted with an exercise price less than the stock's fair market value at the date of grant if the stock options are replacement options in accordance with certain United States Treasury regulations. Virtually all stock options have ten-year terms and vest four years from the date of grant.

Stock option activity was as follows:
 Number of Shares Weighted Average Exercise Price Weighted Average Remaining Contractual Term (Years)
Balances at December 31, 201611,640,383
 $31.25
 8.21
Granted3,920,950
 21.47
  
Adjustment due to dividend (Note 14)46,766
 31.11
  
Exercised(149,429) (6.37)  
Forfeited(3,797,105) (28.37)  
Expired(278,818) (33.18)  
Balances at December 31, 201711,382,747
 28.99
 7.32
Granted1,470,339
 14.26
  
Exercised(45,159) (6.59)  
Forfeited(929,596) (21.48)  
Expired(785,268) (26.25)  
Balances at December 31, 201811,093,063
 27.95
 6.81
Granted1,556,575
 6.52
  
Exercised(19,887) (3.17)  
Forfeited(1,236,326) (24.92)  
Expired(2,371,143) (38.53)  
Balances at December 31, 20199,022,282
 21.94
 6.10
Exercisable at December 31, 20196,264,194
 24.89
 5.20

Total unrecognized compensation costs related to unvested awards as of December 31, 2019 were $16,057, and are expected to be recognized over a weighted-average period of approximately two years.
The weighted average grant date fair value of options granted during 2019, 2018 and 2017 was $3.79, $7.94 and $12.19, respectively. The aggregate intrinsic value of options exercised during 2019, 2018 and 2017 was $66, $356 and $2,429, respectively. The aggregate intrinsic value of options is calculated as the difference between the exercise price of the underlying options and the fair value of Precigen's common stock for those shares where the exercise price was lower than the fair value of Precigen's common stock on the date of exercise.
The following table summarizes additional information about stock options outstanding as of December 31, 2019:
    Options Outstanding Options Exercisable
Range of Exercise Prices Number of Options Weighted Average Exercise Price Weighted Average Remaining Life (Years) Aggregate Intrinsic Value Number of Options Weighted Average Exercise Price Weighted Average Remaining Life (Years) Aggregate Intrinsic Value
$3.17
$8.60
 1,612,219
 $6.40
 8.08 $473
 585,144
 $5.61
 5.95 $194
$8.77
$20.68
 1,278,121
 15.55
 6.53 
 753,064
 15.89
 5.20 
$20.94
   1,646,500
 20.94
 6.51 
 892,000
 20.94
 6.02 
$21.00
$29.47
 1,976,645
 23.71
 6.06 
 1,585,940
 23.71
 5.79 
$29.56
$65.08
 2,508,797
 34.46
 4.38 
 2,448,046
 34.47
 4.33 
    9,022,282
 $21.94
 6.10 $473
 6,264,194
 $24.89
 5.20 $194

The following table summarizes additional information about stock options outstanding as of December 31, 2018:
    Options Outstanding Options Exercisable
Range of Exercise Prices Number of Options Weighted Average Exercise Price Weighted Average Remaining Life (Years) Aggregate Intrinsic Value Number of Options Weighted Average Exercise Price Weighted Average Remaining Life (Years) Aggregate Intrinsic Value
$3.17
$19.52
 1,973,818
 $13.70
 7.54 $169
 833,007
 $12.80
 4.85 $169
$19.85
$20.94
 1,914,763
 20.93
 7.99 
 500,263
 20.92
 7.67 
$21.00
$27.08
 2,057,126
 23.29
 7.26 
 1,248,370
 23.01
 6.69 
$27.10
$29.56
 2,666,109
 29.19
 5.28 
 2,593,151
 29.20
 5.23 
$29.58
$65.08
 2,481,247
 47.24
 6.59 
 1,827,728
 47.65
 6.54 
    11,093,063
 $27.95
 6.81 $169
 7,002,519
 $30.37
 5.97 $169

RSU activity was a follows:
 Number of Restricted Stock Units Weighted Average Grant Date Fair Value Weighted Average Remaining Contractual Term (Years)
Balances at December 31, 2017
 $
 0.00
Granted1,069,126
 13.84
  
Vested(25,000) (15.82)  
Forfeited(73,785) (13.47)  
Balances at December 31, 2018970,341
 13.82
 1.43
Granted2,278,460
 6.59
  
Vested(1,159,165) (8.74)  
Forfeited(307,654) (8.99)  
Balances at December 31, 20191,781,982
 8.71
 1.24

Total unrecognized compensation costs related to unvested RSU awards as of December 31, 2019 were $10,795 and are expected to be recognized over a weighted-average period of approximately two years.
Precigen currently uses authorized and unissued shares to satisfy share award exercises.
The Company's Executive Chairman ("Executive Chairman"), who previously served as the Company's Chief Executive Officer ("CEO") until January 1, 2020, receives a base salary of $200 per month payable in fully-vested shares of Precigen common stock with such shares subject to a three-year lock-up on resale. The monthly number of shares of common stock was calculated based on the closing price on the last trading day of each month and the shares were issued pursuant to the terms of a Restricted Stock Unit Agreement ("RSU Agreement") between Precigen and the Executive Chairman pursuant to the terms of the 2013 Plan. The RSU Agreement, which is subject to renewal annually by the compensation committee of the board of directors of the Company, expired March 31, 2019. In April 2019, the Company entered into a new RSU agreement through March 31, 2020, pursuant to which the base salary and lock-up terms remained unchanged and the number of fully-vested shares of Precigen common stock paid monthly was subsequently calculated based on the volume weighted average of the price of Precigen common stock over the 30 day period ending on the last calendar day of each month. The fair value of the shares issued as compensation for services is included in selling, general, and administrative expenses in the Company's consolidated statements of operations and totaled $1,868, $1,956, and $1,908 for the years ended December 31, 2019, 2018 and 2017, respectively.
16. Operating Leases
The Company leases certain facilities and equipment under noncancelable operating leases. Leases with a lease term of twelve months or less are considered short term leases and are not recorded on the balance sheet, and expense for these leases is recognized over the

term of the lease. The equipmentCompany's leases have remaining terms of one to ten years, some of which may include options to extend the lease and some of which may include options to terminate the lease within one year. In these leases, the Company uses judgment to determine whether it is reasonably possible to extend the lease beyond the initial term or terminate before the initial term ends and the length of the possible extension or early termination. The leases are renewable at the option of the Company. Company and do not contain residual value guarantees, covenants, or other restrictions. The Company's finance leases are not material.
The components of lease costs from continuing operations were as follows:
 Year Ended December 31,
 2019
Operating lease costs$7,260
Short-term lease costs2,042
Variable lease costs2,076
Lease costs$11,378

As of December 31, 2017,2019, maturities of lease liabilities, excluding short-term leases, for continuing operations were as follows:
2020$7,071
20217,449
20226,996
20235,831
20245,734
Thereafter4,280
Total37,361
Present value adjustment(9,330)
Total$28,031
Current portion of operating lease liabilities$4,182
Long-term portion of operating lease liabilities23,849
Total$28,031


Other information related to operating leases in continuing operations was as follows:
December 31,
2019
Weighted average remaining lease term (years)5.24
Weighted average discount rate10.96%
 Year Ended December 31,
 2019
Supplemental Cash Flows Information 
Cash paid for operating lease liabilities$7,294
Operating lease right-of-use assets added in exchange for new lease liabilities1,137

At December 31, 2018, future minimum lease payments under operating leases for continuing operations having initial or remaining noncancelable lease terms in excess of one year arewere as follows:
2019$6,889
20207,384
20217,246
20226,815
20235,747
Thereafter11,734
Total$45,815

2018$7,964
20199,115
20209,186
20218,299
20227,279
Thereafter26,044
Total$67,887
Rent expense, including other facility expenses, was $11,064, $8,59317. Commitments and $8,610 in 2017, 2016 and 2015, respectively.
The Company maintains subleases for certain of its facilities. Rental income under sublease agreements was $137, $1,051 and $1,486 for the years ended December 31, 2017, 2016 and 2015, respectively. Future rental income is expected to be $104 in 2018, $120 in 2019, $55 in 2020, $56 in 2021, $58 in 2022, and $310 thereafter.
Purchase Commitments
As of December 31, 2017, the Company had outstanding contractual purchase commitments of $15,802, which primarily relate to amounts that will be paid in 2018, 2019, and 2020 upon delivery of commercial non-browning apple trees.Contingencies
Contingencies
In March 2012, Trans Ova was named as a defendant in a licensing and patent infringement suit brought by XY, LLC ("XY") alleging that certain of Trans Ova's activitiessale of semen-sorting products and services breached a 2004 licensing agreement and infringed on patents related to semen sorting that XY allegedly owned. Trans Ova filed a number of counterclaims in the case. In Colorado District Court, theThe matter proceeded to a jury trial in the United States District Court for the District of Colorado in January 2016. The jury determined that XY and Trans Ova had each breached the licensing agreement and that Trans Ova had infringed XY's patents. In April 2016, the court issued its post-trial order, awarding $528 in damages to Trans Ova and

$6,066 $6,066 in damages to XY. The order also provided Trans Ova with a compulsory licensethe ability to continue to practice XY's technology, subject to an ongoing royalty obligation.obligation of 12.5% of gross proceeds on Trans Ova's standard sorted semen products, plus a 2% enhancement on those products utilizing "reverse-sorted semen",or semen that is frozen before being sorted. In addition, the court assigned a $5.00 minimum royalty for a straw of sexed semen. Both parties appealed the district court's order, which appeal is pending beforeorder. In May 2018, the Court of Appeals for the Federal Circuit. Circuit denied Trans Ova's appeal of its claims for antitrust, breach of contract and patent invalidity (except as to one patent, for which the Federal Circuit affirmed invalidity in a separate, same-day ruling in a third-party case). The Federal Circuit remanded the district court's calculation of the ongoing royalty and instructed the district court to re-calculate the ongoing royalty in light of post-verdict economic factors. In March 2019, the district court clarified the royalty base and reset the royalty rates consistent with the Federal Circuit's opinion. The district court increased the royalty rate on Trans Ova's standard sorted semen products to 18.75%. For the reverse-sort enhancement, however, it applied a weighted, blended royalty of 12.63% to Trans Ova's entire in vitro fertilization service cycle that utilizes reverse-sorted semen. The district court also changed the minimum royalty for a straw of sexed semen to $6.25 for a 2-million cell straw (prorated appropriately for straws of higher cell counts), and assigned a minimum royalty for a sexed embryo at $6.25 per embryo. The new royalty rates were made retroactive to February 2016 (the end date of the trial).
Since the inception of the 2004 licensing agreement, Trans Ova has remitted payments to XY pursuant to the terms of that agreement, or pursuant to the terms of the district court's April 2016 post-trial order and its March 2019 post-remand order, and has recorded these payments in cost of services in the consolidated statements of operations for the respective periods. For the period from inception of the 2004 licensing agreement through the district court's April 2016 order, aggregate royalty and license payments were $3,170, of which $2,759 had not yet been deposited by XY. For the year ended December 31,In 2016, the Company recorded litigationthe expense

of $4,228, which is included in selling, general and administrative expenses on the accompanying consolidated statement of operations and representsrepresenting the excess of the net damages awarded to XY, including prejudgment interest, over the liability previously recorded by Trans Ova for uncashed checks previously remitted to XY. In August 2016, Trans Ova deposited the net damages amount, including prejudgment interest, into the district court's treasury,registry, to be held until the appeals process iswas complete and final judgment amounts arewere determined. As of December 31, 2017, this amount isThese amounts were included in restricted cash on the accompanying consolidated balance sheet. In December 2016, Trans Ova elected to void the outstanding checks discussed above, and these amounts have been reclassified to other accrued liabilities on the accompanying consolidated balance sheetssheet as of December 31, 2017 and 2016. Depending2018. After the appeal, the district court subsequently released the funds held in its registry to XY in January 2019. As for post-trial damages, Trans Ova continued to remit payment to XY every quarter based on the outcomeoriginal ongoing royalty rates set by the district court, though XY refused to cash those checks.
Under the district court's March 2019 post-remand order clarifying the royalty base and resetting the royalty rates, Trans Ova recalculated royalties owed from February 2016 through the first quarter of 2019, plus any applicable pre- and post-judgment interest, and remitted that payment, totaling $5,801, to XY in May 2019. In June 2019, XY deposited the $5,801 into the district court's registry while the parties resolve two separate disputes over the appropriate calculation of royalties. In the first dispute, XY filed a motion claiming over $1,000 in additional back royalties. Trans Ova contested XY's motion. On February 6, 2020, the district court denied XY's motion without prejudice, holding that XY failed to satisfy its obligation under the court's local rules to meaningfully confer with Trans Ova before filing its motion. The district court held that, if XY chooses to re-file its motion, it must include a substantial certificate of conferral demonstrating that it seriously and in good faith tried to resolve its disputes with Trans Ova. In the second dispute, Trans Ova moved for partial relief from judgment after XY's last patent covering standard sorting expired in December 2019. Trans Ova is seeking an appeal decision, the damages awarded to either party could decrease, increase, or be eliminated. The appeal decision may also remand to the Colorado District Court all, or a portion,appropriate reduction in its royalty obligation in light of the issues being appealed. fact that XY's only non-expired patents are limited to reverse sorting. Trans Ova's motion is pending before the court.
During the year ended December 31, 2019, the Company recorded additional royalty expense of $383 based on the recalculation of royalties owed XY from February 2016 through December 2018. This amount is included in selling, general and administrative expenses on the accompanying consolidated statement of operations.
In December 2016, XY filed a complaint for patent infringement, and trade secret misappropriation, and various state law claims against Trans Ova in the United States District Court for the Western District of Texas in Waco, Texas. Since the claims in thisthe 2016 complaint directly relate to the 2012 licensing dispute and patent issues,parties' other litigation, Trans Ova filed and was granted a motion for change of venueto transfer the case to Colorado District Court. district court. That court subsequently dismissed 9 of the complaint's 12 counts, including all 5 non-patent counts and four patent counts. The court subsequently dismissed a fifth patent count after ruling that the patent was invalid, leaving only 2 patent counts left in the case. In February 2019, a Wisconsin district court invalidated 1 of the two remaining patents, which XY had asserted against another competitor. That ruling prompted the Colorado district court to stay the 2 remaining patent counts and enter final judgment against XY's ten other dismissed counts. The 2016 litigation is administratively closed, pending XY's appeal to the Federal Circuit, wherein XY is appealing the district court's dismissal of four of its patent causes of action. XY is not appealing one of the five dismissed patent counts or any of the dismissed non-patent causes of action. The Federal Circuit hearing is scheduled for March 5, 2020. Separately, after initially appealing the Wisconsin court's invalidation of the sixth patent, XY subsequently withdrew its appeal.
Trans Ova also filed a motionshall continue to dismiss, from whichutilize the Court recently dismissed ninetechnology consistent with the determinations of the twelve countscourt proceedings. Nonetheless, these disputes remain subject to a number of uncertainties, including the complaint. Presently, three counts for patent infringement remain pending.outcome of appellate proceedings, the possibility of further claims by XY, and the impact of these matters on Trans Ova's ability to utilize the technology. Trans Ova and the Company could elect to enter into a settlement agreement in order to avoid the further costs and uncertainties of litigation, to modifylitigation.
In October 2018, the court-ordered license to XY's technologies, or to recover monetary damages stemmingCompany received a subpoena from Trans Ova's counterclaims for antitrust violations by XY and its parent company, Inguran.
In May 2016, two putative shareholder class action lawsuits, captioned Hoffman v. Intrexon Corporation et al. and Gibrall v. Intrexon Corporation et al., were filed in the U.S. District Court forDivision of Enforcement of the Northern DistrictSEC informing the Company of California on behalf of purchasers of Intrexon's common stock between May 12, 2015 and April 20, 2016 (the "Class Period"). In July 2016, the court consolidated the lawsuits and appointed a lead plaintiff. The consolidated amended complaint names as defendants Intrexon and certain of Intrexon's current and former officers (the "Defendants"). It alleges, among other things, that the Defendants made materially false and/or misleading statements during the Class Period with respect tonon-public, fact-finding investigation concerning the Company's business, operations,disclosures regarding its methane bioconversion platform. The Company has produced documents to, and prospects in violation of Sections 10(b) and 20(a)met with, the staff of the Securities Exchange Act of 1934, as amended. The plaintiffs' claims are based in part upon allegations in a report published in April 2016 onSEC and is voluntarily cooperating with their investigation. In November 2019, the Seeking Alpha financial blog. The plaintiffs seek compensatory damages, interest and an award of reasonable attorneys' fees and costs. The Defendants moved to dismiss the case. On February 24, 2017, the court granted the Defendants' motion to dismiss the lawsuit on the grounds that the plaintiff failed to state a claim, while granting the plaintiff leave to amend. The plaintiff subsequently notified the court that it would seek to appeal the court's ruling rather than amend its complaint. On April 26, 2017, the court entered final judgment in the case. Notice of appeal was filed by the plaintiff on May 26, 2017. On October 26, 2017, the plaintiff filed a voluntary motion to dismiss the case, which the court of appeals granted on November 1, 2017.
In July 2016, a putative shareholder derivative action captioned Basile v. Kirk et al. was filed in the Circuit Court of Fairfax County, Virginia, against certainstaff of the Company's directors, the Company's CEO, and Third Security, and namingSEC informed the Company as a nominal defendant.that its investigative work was largely completed. The complaint alleges causes of action for breaches of fiduciary dutyCompany and unjust enrichment relating to the entry by the Company into the Services Agreement with Third Security. The plaintiff seeks, among other things, damages in an unspecified amount, disgorgement of improper benefits, appropriate equitable relief, and an award of attorney fees and other costs and expenses. The complaint is substantially similar to two separate demands made by shareholders concerning the Services Agreement and Mr. Kirk's compensation. The board of directorsstaff of the Company appointed a Special Litigation Committee ("SLC") consisting of independent directors to investigate the claimsSEC are currently in discussions, and allegations made in the derivative action and in the two shareholder demands and to decide on behalf of the Company whether the claims and allegations should be pursued. The Basile case was stayed pending the report of the SLC. In November 2016, the SLC completed its review and evaluation and unanimously determined that the claims were without merit because the compensation arrangements were the result of an informed and disinterested decision-making process and were fair to the Company, and that prosecution of the asserted claims was not in the best interest of Intrexon or its shareholders. Based upon the determination of the SLC, on February 24, 2017, the Company moved to dismiss the court action pursuant to Virginia statute. On June 8, 2017, the court granted the Company's motion to dismiss while granting the plaintiff leave to amend. On August 30, 2017, the plaintiff filed a consent motion for leave to amend along with the amended shareholder derivative complaint. The Company moved to dismiss the amended complaint on October 6, 2017. On January 25, 2018, the court granted the Company's motion and dismissed the plaintiff's amended complaint with prejudice.

In addition to the shareholder demands above, in June and July 2016, two shareholders made separate demands under Virginia law demanding that the Company file suit against certain of its current officers and directors for alleged breaches of fiduciary duty and other claims. The demands were based upon and asserted the allegations previously published in April 2016 in the Seeking Alpha financial blog. In July 2016, the Company's board of directors authorized the SLC to expand its review to include all such allegations. In February 2017, the SLC completed its review and evaluation and unanimously determined that there was no basis for any of the allegations, that the Company's officers and directors did not breach their fiduciary duties or any other applicable law, and that prosecution of the asserted claims was not in the best interest of Intrexon or its shareholders. Following the SLC's determination, in March 2017, one of the putative shareholders filed a derivative complaint captioned Luger v. Kirk et al. in the Circuit Court of Fairfax County, Virginia. The Company is a nominal defendant in this action, and other defendants include certain of the Company's directors, the Company's CEO, and Third Security. The complaint alleges causes of action for breaches of fiduciary duty and unjust enrichment relating to the entry by the Company into the Services Agreement with Third Security, Mr. Kirk's compensation, and certain allegations contained in the April 2016 Seeking Alpha financial blog piece. Based on the determination of the SLC and a review of applicable law, the Company intends to defend the lawsuit vigorously; however, there can be no assurance regarding the ultimate outcome of this case.the investigation.
The DivisionCompany has previously entered into strategic collaborations, including ECCs and JVs, to fund and develop products enabled by its technologies. These relationships involve complex interests, and the Company's interests may diverge with those of Enforcementits collaborators, which can occur as a result of operations under those collaborations, business or technological developments, or as the U.S. SecuritiesCompany transitions away from, or terminates, strategic collaborations. The Company has had, and Exchange Commission ("SEC") is conducting an investigation whichhas, disagreements and disputes with certain collaborators and JV partners, including Harvest, the IEP Investors, and the IEPII Investors. While the Company believes concerns certain issues raisedit has the right to payment with respect to work performed for all of its collaborations and JVs, consistent with its policy for accounting for accounts receivable, the Company has fully reserved the amount of any disputed accounts receivable that remained outstanding as of December 31, 2019. These disagreements and disputes may result

in litigation, unfavorable settlements or concessions by the foregoing matters. The Company, has met with the SEC staff and is voluntarily cooperating with their investigation. The Company's boardadverse regulatory action, or management distraction, any of directors has authorized the SLC to monitorwhich could harm the Company's interaction with the SEC staff.business or results of operations.
The Company may become subject to other claims, assessments and assessmentsgovernmental investigations from time to time in the ordinary course of business. Such matters are subject to many uncertainties and outcomes are not predictable with assurance. The Company accrues liabilities for such matters when it is probable that future expenditures will be made and such expenditures can be reasonably estimated. As of December 31, 2017 and 2016,2019, the Company does not believe that any such matters, individually or in the aggregate, will have a material adverse effect on the Company's business, financial condition, results of operations, or cash flows.
18. Related Party Transactions
Third Security and Affiliates
The Company's CEOExecutive Chairman and Chairman of the board of directors is also the Senior Managing Director and CEO of Third Security and owns 100% of the equity interests of Third Security. In November 2015, the independent members of Intrexon'sPrecigen's board of directors, with the recommendation of the audit committee of the board of directors, approved the execution of a Services Agreement ("Services Agreement") with Third Security pursuant to which Third Security providesprovided the Company with certain professional, legal, financial, administrative, and other support services necessary to support the Company and its CEO. AsExecutive Chairman. The Services Agreement provided for a term of one year, could be terminated by the Company at any time, and could be extended only by agreement of the parties, including approval of a majority of the independent members of Precigen's board of directors. The independent members of Precigen's board of directors, with the recommendation of the audit committee of the board of directors, subsequently approved extensions of the Services Agreement through January 1, 2020 at which point it was not further extended. Under the Services Agreement, as consideration for providing these services, Third Security iswas entitled to a fee of $800 per month to be paid in the form of fully-vested shares of the Company'sPrecigen common stock. Thestock that approximates $800 per month. Through 2018, the number of shares of common stock iswas calculated based on the closing price of the Company's common stock on the 15th day of each month and issued to Third Security at the end of the month. TheIn 2019, the number of shares of common stock was calculated based on the volume weighted average of the closing price of the Company's common stock over the 30-day period ending on the 15th day of the calendar month when the applicable services were provided. Through May 2019, the payments made by the Company under the Services Agreement constitute, in the aggregate, an award under the 2013 Plan and are subject to the terms of the 2013 Plan. Following the effectiveness of the 2019 Plan in June 2019, subsequent payments made by the Company under the Services Agreement constitute, in the aggregate, an award under the 2019 Plan and are subject to the terms of the 2019 Plan (Note 15). The Services Agreement had a term of one year, can be terminated by the Company at any time, and may be extended only by agreement of the parties, including approval of a majority of the independent members of Intrexon's board of directors. The independent members of Intrexon's board of directors, with the recommendation of the audit committee of the board of directors, subsequently approved extensions of the Services Agreement through January 1, 2019. For the years ended December 31, 2017, 20162019, 2018 and 2015,2017, the Company issued 500,6501,606,062 shares, 337,163696,033 shares, and 48,678500,650 shares, respectively, with values of $8,704, $8,571,$8,233, $8,324, and $1,375,$8,704, respectively, to Third Security as payment for services pursuant to the Services Agreement. The Services Agreement was not extended and was allowed to expire on January 1, 2020. In addition to the foregoing Services Agreement, the Company reimburses Third Security for certain out-of-pocket expenses incurred on the Company's behalf, and the total expenses incurred by the Company under this arrangement was $409, $309,$26, $47, and $428$409 for the years ended December 31, 2017, 20162019, 2018 and 2015,2017, respectively.
See also Note 15 regarding compensation arrangements between the Company and its CEO.Executive Chairman.
In October 2017, the Company entered into a Preferred Stock Equity Facility ("Preferred Stock Equity Facility") with an affiliate of Third Security ("Third Security Affiliate"). Under the Preferred Stock Equity Facility, the Company may,could, from time to time at its sole and exclusive option, issue and sell to the Third Security Affiliate, up to $100,000 of newly issued Series A Redeemable Preferred Stock ("Series A Preferred Stock"). Any issued Series AIn conjunction with the Company's July 2018 registered underwritten public offering of Convertible Notes (Note 12), the Preferred Stock is non-voting, accrues dividends of 8% per annum and, subject to limited exceptions, is senior to Intrexon's common stock with respect to the rights to the payment of dividends and on parity with the common stock with respect to the distribution of assets in the event of any liquidation, dissolution or winding up or change of control of Intrexon. Any issued Series A Preferred Stock is convertible into common stock only following receipt of shareholder approval by the Company, including a majority of the shares voted by those

shareholders unaffiliated with Mr. Kirk (the "Shareholder Approval"), subject to any necessary regulatory approvals. Following receipt of the Shareholder Approval and receipt of any necessary regulatory approvals, any issued Series A Preferred Stock is convertible into Intrexon common stock based on a conversion price using the 20-day volume-weighted average market price as of market closing on the fifth business day prior to the mailing of the proxy statement soliciting the Shareholder Approval, subject to adjustment for certain stock splits and similar events. The Company has agreed to take all reasonable steps necessary to seek Shareholder Approval on or before the date of its annual meeting of shareholders in 2019. Any issued Series A Preferred Stock is redeemable at the election of the Company at any time, or at the election of the Third Security Affiliate after December 31, 2020. The Preferred StockEquity Facility will expire on the earliest to occur of: (i) the date on which the Third Security Affiliate has purchasedwas terminated. NaN shares of Series A Preferred Stock in the aggregate amount of $100,000, (ii) April 30, 2019, (iii) the date of the Shareholder Approval, and (iv) the mutual agreement of the parties. To date, the Company has not utilizedhad been issued under the Preferred Stock Equity Facility.
See additional discussion regarding Third Security's participation in the Company's equity offerings at Notes 14 and 22.
The Company also subleases certain administrative offices to Third Security. The significant terms of the lease mirror the terms of the Company's lease with the landlord, and the Company recorded sublease income of $89, $89, and $43 for each of the years ended December 31, 2019, 2018 and 2017, 2016respectively.
See Notes 1, 3, and 2015.23 regarding additional transactions with affiliates of Third Security.

Transactions with ECC Parties
In addition to entitiesEntities controlled by Third Security anyare considered related parties and are disclosed below. The Company also disclosed entity in which the Companyrelationships below where it holds more than a de minimis equity securities,interest, including equity securities received as upfront or milestone consideration, and whichthat also are party to a collaboration with the Company.
In June 2016, the Company received 100,000 shares of Series 1 Preferred Stock (the "Preferred Shares") of ZIOPHARM, with a per share stated value of $1,200, as consideration for amending their two previously existing ECC agreements (Note 6). The Company received a monthly dividend, paid in additional Preferred Shares, equal to $12.00 per Preferred Share held per month divided by the stated value of the Preferred Shares. The Company elected the fair value option to account for the Preferred Shares whereby the value of the Preferred Shares was adjusted to fair value as of each reporting date and unrealized gains and losses were reported in the consolidated statements of operations. In conjunction with the ZIOPHARM License Agreement in October 2018 (Note 6), the Company returned to ZIOPHARM all of the Preferred Shares owned or accrued by the Company as of the effective date of the agreement. During the years ended December 31, 2018 and 2017, the Company recognized $14,793 and $16,717 of dividend income in the accompanying consolidated statements of operations, respectively. Following the transaction in October 2018, ZIOPHARM is no longer considered a related party.
In March 2017, Fibrocell sold Series A Convertible Preferred Stock (the "Convertible Preferred Shares") convertible into shares of Fibrocell common stock and warrants to purchase shares of Fibrocell common stock to certain institutional and accredited investors, including the Company and affiliates of Third Security. The Company paid $1,161 in exchange for 1,161 Convertible Preferred Shares and warrants to acquire 99,769 shares of Fibrocell common stock. The Convertible Preferred Shares accrued dividends at 4% per annum, compounded quarterly, increasing the stated value of the shares. The Company also holds a promissory note which was convertible into shares of Fibrocell common stock ("convertible note") and warrants to purchase shares of Fibrocell common stock. The Company elected the fair value option to account for these investments whereby the values of investments were adjusted to fair value as of each reporting date and unrealized gains and losses were reported in the consolidated statements of operations. As of December 31, 2018, the fair value of the Company's investment in Fibrocell preferred stock totaled $191, and the value of the convertible note and warrants totaled $120, all of which are consideredincluded in other assets on the accompanying consolidated balance sheet. The Company also owned common shares of Fibrocell previously acquired through collaborations and other transactions, and the fair value of these common shares was $640 as of December 31, 2018. In December 2019, Fibrocell was acquired by Castle Creek, and as a result, the Company received $1,280 in December 2019 for its common shares and received a total of $3,311 in January 2020 for the Convertible Preferred Shares and the convertible note, including accrued interest thereon. The $3,311 is included in other receivables on the accompanying consolidated balance sheet as of December 31, 2019. The Company recognized a total gain of $3,222 on the change in fair value of these instruments, which is included in total other income (expense), net, in the accompanying consolidated statement of operations for the year ended December 31, 2019. Subsequent to bethe acquisition by Castle Creek, Fibrocell is no longer a related parties.party.
During 2018, the Company mutually terminated each of its ECC agreements with Histogenics Corporation ("Histogenics"), OvaScience, Inc., and Synthetic Biologics, Inc. ("Synthetic Biologics"). Upon termination of these ECCs, the Company recognized the remaining deferred revenue totaling $11,877.
In December 2017, the Company purchased certain property and equipment comprising the pilot plant production facility for its energy programs for $2,812 from Intrexon Energy Partners. The Company intends to use the pilot plant to support the collaborations with Intrexon Energy Partners and Intrexon Energy Partners II and its own research programs.
The Company holds a promissory note convertible into shares of Fibrocell common stock ("convertible note") and warrants to purchase shares of Fibrocell common stock. As of December 31, 2017 and 2016, the value of the convertible note and warrants totaled $575 and $1,642, respectively, and is included in other assets on the accompanying consolidated balance sheets. In July 2015, the Company purchased 125,290 shares of common stock of Fibrocell at $17.40 per share. The share data reflect a 1-for-3 reverse stock split of Fibrocell's common stock effective March 10, 2017.
In June 2016, the Company purchased 226,142 shares of Oragenics common stock at $5.20 per share. The share data reflect a 1-for-10 reverse stock split of Oragenics' common stock effective January 19, 2018.
In March 2015, the Company purchased 27,879 shares of common stock of AmpliPhi Biosciences Corporation ("AmpliPhi") and 6,969 warrants for $2,300. The share and warrant data reflect a 1-for-10 reverse stock split of AmpliPhi's common stock effective April 24, 2017. Of the total purchase price, $1,979 was allocated to the value of the shares of common stock and $321 was allocated to the value of the warrants. In December 2016, the Company sold all of its investment in AmpliPhi common stock, resulting in a realized loss of $4,098, which is included in unrealized and realized depreciation in fair value of equity securities on the consolidated statement of operations for the year ended December 31, 2016.
In February 2015, the Company purchased $12,600 of ZIOPHARM common stock. See Note 14 for additional discussion related to the Company's investment in ZIOPHARM.
Other Related Parties
In June 2015, the Company entered into an agreement with Harvest, an investment fund sponsored by Harvest Capital Strategies, LLC, and a related party based on ownership in the fund by affiliates of Third Security. Harvest was established to invest in life science research and development start-up opportunities that the Company offered to Harvest with exclusive rights of first-look and first negotiation. Based on this agreement, Harvest established six new collaboration entities, each of which entered into an ECC with the Company in a designated field. The terms of such ECCs were negotiated between the Company and Harvest. As consideration for providing exclusive rights of first-look and first negotiation for start-up opportunities, the Company received a portion of the management fee collected by the fund sponsor of Harvest. These fees are included in other income in the accompanying consolidated statementsstatement of operations and totaled $1,839 $2,483, and $1,349 for the yearsyear ended December 31, 2017, 2016 and 2015, respectively.2017. In September 2017, the commitment period for Harvest was terminated and,

as a result, the agreement with Harvest terminated. The termination of the agreement had no effect on the existing collaborations with Harvest-controlled entities. See Note 4 for further discussion of the asset acquisition of certain Harvest entities.

19. Net Loss per Share
The following table presents the computation of basic and diluted net loss per share:
 2019 2018 2017
Historical net loss per share:     
Numerator:     
Net loss from continuing operations attributable to Precigen$(206,165) $(408,947) $(70,637)
Net loss from discontinued operations attributable to Precigen(116,159) (100,389) (46,381)
Net loss attributable to Precigen$(322,324) $(509,336) $(117,018)
Denominator:     
Weighted average shares outstanding, basic and diluted154,138,774
 129,521,731
 119,998,826
Net loss per share:     
Net loss from continuing operations attributable to Precigen per share, basic and diluted$(1.34) $(3.16) $(0.59)
Net loss from discontinued operations attributable to Precigen per share, basic and diluted(0.75) (0.77) (0.39)
Net loss attributable to Precigen per share, basic and diluted$(2.09) $(3.93) $(0.98)

 2017 2016 2015
Historical net loss per share:     
Numerator:     
Net loss attributable to Intrexon$(117,018) $(186,612) $(84,493)
Denominator:     
Weighted average shares outstanding, basic and diluted119,998,826
 117,983,836
 111,066,352
Net loss attributable to Intrexon per share, basic and diluted$(0.98) $(1.58) $(0.76)
The following potentially dilutive securities as of December 31, 2017, 2016,2019, 2018, and 2015,2017, have been excluded from the above computations of diluted weighted average shares outstanding for the years then ended as they would have been anti-dilutive:
 December 31,
 2019 2018 2017
Convertible debt21,323,068
 18,955,668
 
Options9,022,282
 11,093,063
 11,382,747
Restricted stock units1,781,982
 970,341
 
Warrants133,264
 133,264
 133,264
Total32,260,596
 31,152,336
 11,516,011
 December 31,
 2017 2016 2015
Options11,382,747
 11,640,383
 11,043,528
Warrants133,264
 
 194,719
Total11,516,011
 11,640,383
 11,238,247

20. Segments
Through March 31, 2019, the Company was a single operating segment. In April 2019, the Company initiated efforts to better deploy resources, realize inherent synergies, and position the Company for growth with a core focus on healthcare and initiated plans to achieve this through various corporate activities, ultimately resulting in the closing of the Transactions in January 2020 (Note 3). Beginning in the second quarter of 2019, the Company's CODM assessed the operating performance of and allocated resources for several operating segments using Segment Adjusted EBITDA. Management believes this financial metric is a key indicator of operating results since it excludes noncash revenues and expenses that are not reflective of the underlying business performance of an individual enterprise. The Company defines Segment Adjusted EBITDA as net loss before (i) interest expense, (ii) income tax expense or benefit, (iii) depreciation and amortization, (iv) stock-based compensation expense, (v) loss on impairment of goodwill and other long-lived assets, (vi) equity in net loss of affiliates, and (vii) recognition of previously deferred revenue associated with upfront and milestone payments as well as cash outflows from capital expenditures and investments in affiliates.
Because the Company uses Segment Adjusted EBITDA as its primary measure of segment performance, it has included this measure in its discussion of segment operating results. The Company has also disclosed revenues from external customers and intersegment revenues for each reportable segment. Corporate expenses are not allocated to the segments and are managed at a consolidated level. The CODM does not use total assets by segment to evaluate segment performance or allocate resources, and accordingly, these amounts are not required to be disclosed. The Company's CODM now regularly reviews disaggregated financial information for each of the Company's operating segments. The Company's segment presentation has been recast to retrospectively reflect the change from one reportable segment to the newly identified reportable segments, including goodwill and also excludes consideration of all of the businesses included in the Transactions (Note 3).

For the year ended December 31, 2019, the Company's reportable segments are (i) PGEN Therapeutics, (ii) ActoBio, (iii) MBP Titan, and (iv) Trans Ova. These identified reportable segments met the quantitative thresholds for the year ended December 31, 2019, to be reported separately. See Note 1 for a description of each of these reportable segments. The All Other category as reported below reflects Precigen's other operating segments that do not meet the quantitative thresholds to report separately. The Company has also recast 2018 and 2017 segment information on the same basis as the 2019 presentation.
Information by reportable segment was as follows:
 PGEN Therapeutics ActoBio MBP Titan Trans Ova All Other Total
Goodwill           
Balances at December 31, 2017$
 $
 $
 $46,236
 $47,515
 $93,751
Reallocations from changes to reporting units15,232
 1,788
 
 
 (17,020) 
Foreign currency translation adjustments
 
 
 
 (124) (124)
Balances at December 31, 201815,232
 1,788
 
 46,236
 30,371
 93,627
Reallocations from changes to reporting units
 
 9,635
 
 (9,635) 
Impairments
 
 
 (29,642) (178) (29,820)
Foreign currency translation adjustments
 (53) 
 
 
 (53)
Balances at December 31, 2019$15,232
 $1,735
 $9,635
 $16,594
 $20,558
 $63,754
 Year Ended December 31, 2019
 PGEN Therapeutics ActoBio MBP Titan Trans Ova All Other Total
Revenues from external customers$2,227
 $(364) $3,813
 $68,672
 $16,227
 $90,575
Intersegment revenues11,341
 498
 96
 1,361
 1,270
 14,566
Total segment revenues$13,568
 $134
 $3,909
 $70,033
 $17,497
 $105,141
            
Segment Adjusted EBITDA$(30,166) $(13,662) $(36,718) $(6,337) $(5,952) $(92,835)
 Year Ended December 31, 2018
 PGEN Therapeutics ActoBio MBP Titan Trans Ova All Other Total
Revenues from external customers$29,021
 $6,684
 $9,927
 $75,178
 $30,213
 $151,023
Intersegment revenues617
 840
 9
 558
 255
 2,279
Total segment revenues$29,638
 $7,524
 $9,936
 $75,736
 $30,468
 $153,302
            
Segment Adjusted EBITDA$(32,841) $(12,797) $(29,403) $(5,730) $(10,708) $(91,479)
 Year Ended December 31, 2017
 PGEN Therapeutics ActoBio MBP Titan Trans Ova All Other Total
Revenues from external customers$53,184
 $12,929
 $14,336
 $79,783
 $59,174
 $219,406
Intersegment revenues
 1,183
 
 243
 630
 2,056
Total segment revenues$53,184
 $14,112
 $14,336
 $80,026
 $59,804
 $221,462
            
Segment Adjusted EBITDA$(5,655) $(2,656) $(32,251) $1,020
 $(1,102) $(40,644)


The table below reconciles total segment revenues from reportable segments to total consolidated revenues:
 Year Ended December 31,
 2019 2018 2017
Total segment revenues from reportable segments$87,644
 $122,834
 $161,658
Other revenues, including from other operating segments18,602
 30,914
 59,861
Elimination of intersegment revenues(15,524) (2,570) (2,056)
Total consolidated revenues$90,722
 $151,178
 $219,463
The table below reconciles Segment Adjusted EBITDA for reportable segments to consolidated net loss before income taxes:
 Year Ended December 31,
 2019 2018 2017
Segment Adjusted EBITDA for reportable segments$(86,883) $(80,771) $(39,542)
All Other Segment Adjusted EBITDA(5,952) (10,708) (1,102)
Remove cash paid for capital expenditures and investments in affiliates15,339
 19,906
 31,701
Add recognition of previously deferred revenue associated with upfront and milestone payments17,843
 39,446
 68,539
Other expenses:     
Interest expense(17,666) (8,473) (584)
Depreciation and amortization(19,789) (24,105) (21,609)
Impairment loss(30,810) 
 (13,823)
Reacquisition of in-process research and development
 (236,748) 
Stock-based compensation expense(16,443) (32,424) (36,893)
Equity in net loss of affiliates(2,416) (8,986) (12,436)
Other67
 
 
Unallocated corporate costs(47,577) (84,536) (53,197)
Eliminations(14,400) (2,343) 579
Consolidated net loss from continuing operations before income taxes$(208,687) $(429,742) $(78,367)

As of December 31, 2019 and 2018, the Company had $6,724 and $10,011, respectively, of long-lived assets in foreign countries from continuing operations. The Company recognized revenues from continuing operations derived in foreign countries totaling $1,401, $6,255, and $13,771 for the years ended December 31, 2019, 2018 and 2017, respectively.

21. Quarterly Financial Information (Unaudited)
The following information has been derived from unaudited consolidated statements that, in the opinion of management, include all recurring adjustments necessary for a fair statement of such information. The information in the tables below reflect the impact of discontinued operations further discussed in Note 3.
 Three Months Ended
 March 31,
2017
 June 30,
2017
 September 30,
2017
 December 31, 2017 (1)
Total revenues$53,504
 $54,433
 $46,016
 $77,028
Operating loss(31,381) (35,270) (44,747) (26,492)
Net loss(32,377) (19,662) (40,836) (33,945)
Net loss attributable to Intrexon(31,399) (18,664) (39,689) (27,266)
Net loss attributable to Intrexon per share, basic and diluted$(0.26) $(0.16) $(0.33) $(0.23)
 Three Months Ended
 March 31,
2016
 June 30,
2016
 September 30,
2016
 December 31,
2016
Total revenues$43,438
 $52,501
 $48,985
 $46,002
Operating loss(40,533) (23,222) (28,821) (32,590)
Net loss(65,320) (50,031) (30,011) (44,912)
Net loss attributable to Intrexon(64,429) (49,064) (28,982) (44,137)
Net loss attributable to Intrexon per share, basic and diluted$(0.55) $(0.42) $(0.24) $(0.37)
 Three Months Ended
 March 31,
2019
 June 30,
2019
 September 30,
2019
 December 31, 2019 (1)
Total revenues$22,585
 $32,836
 $18,299
 $17,002
Operating loss(50,216) (31,373) (44,637) (77,986)
Loss from continuing operations(52,900) (32,305) (49,054) (73,498)
Net loss attributable to Precigen(60,709) (38,766) (53,634) (169,215)
Net loss from continuing operations attributable to Precigen per share, basic and diluted$(0.34) $(0.21) $(0.32) $(0.47)
Net loss attributable to Precigen per share, basic and diluted$(0.40) $(0.25) $(0.35) $(1.09)
(1)During the fourth quarter of 2017,2019, the Company recorded a goodwill impairment charge related to the Trans Ova reporting unit (Note 11) as well as impairment charges on certain assets held for sale (Note 3).
 Three Months Ended
 March 31,
2018
 June 30,
2018
 September 30,
2018
 December 31, 2018 (1)
Total revenues$37,160
 $42,771
 $30,055
 $41,192
Operating loss(42,241) (34,807) (58,330) (268,119)
Loss from continuing operations(37,103) (52,120) (50,507) (274,587)
Net loss attributable to Precigen(46,165) (65,382) (57,324) (340,465)
Net loss from continuing operations attributable to Precigen per share, basic and diluted$(0.28) $(0.39) $(0.38) $(2.08)
Net loss attributable to Precigen per share, basic and diluted$(0.36) $(0.51) $(0.44) $(2.59)

(1)
During the fourth quarter of 2018, the Company reacquired certain in-process research and development from ZIOPHARM, Ares Trading, and Intrexon T1D Partners, all of which were immediately expensed (Notes 5 and 6). The Company also recorded a loss on abandonment of certain of its intangible assets (Note 11). The Company also recognized the remaining balance of deferred revenue associated with ZIOPHARM ECC2Histogenics and Synthetic Biologics upon the parties' mutual agreement to terminatetermination of the ECCs with these entities (Note 5)18). The Company also recorded goodwill

impairment charges primarily related to the AquaBounty reporting unit and an impairment charge related to certain of its in-process research and development assets (Note 11).
21.22. Defined Contribution Plans
The Company sponsors defined contribution plans covering employees who meet certain eligibility requirements. The Company makes contributions to the plans in accordance with terms specified in the plan agreement. The Company's contributions to the plans for continuing operations were $2,367, $1,857$1,427, $1,662 and $1,157$1,545 in 2019, 2018 and 2017, 2016 and 2015, respectively.
22.23. Subsequent Events
In January 2018, the Company closed a public offering of 6,900,000 shares of its common stock, including 1,000,000 shares of common stock purchased by affiliates of Third Security. The net proceeds of the offering were $82,242, after deducting underwriting discounts of $3,688 and estimated offering expenses of approximately $320, all of which were capitalized.
In January 2018, Intrexon purchased $5,000 of additional AquaBounty common stock through an underwritten public offering, reducing its ownership stake from approximately 58% to approximately 53%.
In February 2018, OvaScience provided their notice of termination of the ECC between them and the Company, to be effective in May 2018 in accordance with the ECC agreement. As a result, the Company will recognize the remaining balance of the deferred revenue associated with this ECC agreement totaling $3,183 in 2018. The Company and OvaScience are in discussions regarding dissolving the OvaXon joint venture and terminating the related ECC agreement.

ZIOPHARM Oncology, Inc.
Financial Statements
December 31, 2015, 2014 and 2013


Table of Contents

REPORT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM
To the Board of Directors and Stockholders of
ZIOPHARM Oncology, Inc.
Boston, Massachusetts

We have audited the accompanying balance sheets of ZIOPHARM Oncology, Inc. as of December 31, 2015 and 2014, and the related statements of operations, changes in stockholders’ equity, and cash flows for each of the three years in the period ended December 31, 2015. ZIOPHARM Oncology, Inc’s management is responsible for these financial statements. Our responsibility is to express an opinion on these financial statements 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 financial statements are free of material misstatement. An audit 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 financial statements referred to above present fairly, in all material respects, the financial position of ZIOPHARM Oncology, Inc. as of December 31, 2015 and 2014, and the results of its operations and its cash flows for each of the years in the three-year period ended December 31, 2015, in conformity with accounting principles generally accepted in the United States of America.
/s/ RSM US LLP
Boston, Massachusetts
February 24, 2016


ZIOPHARM Oncology, Inc.
BALANCE SHEETS
(in thousands, except share and per share data)
  
December 31,
2015
 
December 31,
2014
ASSETS    
Current assets:    
Cash and cash equivalents $140,717
 $42,803
Receivables 446
 145
Prepaid expenses and other current assets 11,358
 1,139
Total current assets 152,521
 44,087
Property and equipment, net 581
 531
Deposits 128
 128
Other non current assets 494
 491
Total assets $153,724
 $45,237
LIABILITIES AND STOCKHOLDERS’ EQUITY    
Current liabilities:    
Accounts payable $2,008
 $2,004
Accrued expenses 8,906
 7,182
Deferred revenue - current portion 6,861
 1,360
Deferred rent - current portion 348
 280
Total current liabilities 18,123
 10,826
Deferred revenue, net of current position 47,917
 
Deferred rent, net of current position 313
 570
Total liabilities 66,353
 11,396
Commitments and contingencies (note 8)    
Stockholders’ equity:    
Common stock, $0.001 par value; 250,000,000 shares authorized; 131,718,579 and 104,452,105 shares issued and outstanding at December 31, 2015 and 2014, respectively 132
 104
Additional paid-in capital - common stock 579,939
 406,349
Accumulated Deficit (492,700) (372,612)
Total stockholders’ equity 87,371
 33,841
Total liabilities and stockholders’ equity $153,724
 $45,237

ZIOPHARM Oncology, Inc.
STATEMENTS OF OPERATIONS
(in thousands, except share and per share data)
  For the Year Ended December 31,
  2015 2014 2013
Collaboration Revenue $4,332
 $1,373
 $800
Operating expenses:      
Research and development 106,785
 32,706
 42,852
General and administrative 17,647
 12,166
 15,661
Total operating expenses 124,432
 44,872
 58,513
Loss from operations (120,100) (43,499) (57,713)
Other income (expense), net 12
 (5) (579)
Change in fair value of warrants 
 11,723
 1,185
Net loss $(120,088) $(31,781) $(57,107)
Basic and diluted net loss per share $(0.96) $(0.31) $(0.66)
Weighted average common shares outstanding used to compute basic and diluted net loss per share 125,416,084
 101,130,710
 85,943,175


ZIOPHARM Oncology, Inc.
STATEMENTS OF CHANGES IN STOCKHOLDERS’ EQUITY
(in thousands, except share and per share data)
  
 
Common Stock
 
Additional
Paid-in
Capital
Common
Stock
 
Additional
Paid-in
Capital
Warrants
 
Accumulated
Deficit
 
Total
Stockholders’
Equity/
  Shares Amount 
Balance at December 31, 2012 83,236,840
 $83
 $325,177
 $6,909
 $(283,724) $48,445
Stock-based compensation 
 
 3,507
 
 
 3,507
Issuance of common stock, net of commission and expenses of $3,678 16,445,000
 16
 53,864
 
 
 53,880
Exercise of warrants to purchase common stock 112,808
 
 396
 (196) 
 200
Exercise of employee stock options 570,168
 1
 955
 
 
 956
Issuance of restricted common stock 75,272
 
 
 
 
 
Repurchase of shares of restricted common stock (116,723) 
 (498) 
 
 (498)
Cancelled of restricted stock (163,747) 
 
 
 
 
Expired warrants 
 
 3,110
 (3,110) 
 
Net loss 
 
 
 
 (57,107) (57,107)
Balance at December 31, 2013 100,159,618
 100
 386,511
 3,603
 (340,831) 49,383

ZIOPHARM Oncology, Inc.
STATEMENTS OF CHANGES IN STOCKHOLDERS’ EQUITY (Cont.)
(in thousands, except share and per share data)
  
 
Common Stock
 
Additional
Paid-in
Capital
Common
Stock
 
Additional
Paid-in
Capital
Warrants
 
Accumulated
Deficit
 
Total
Stockholders’
Equity/
  Shares Amount 
Stock-based compensation 
 
 4,743
 
 
 4,743
Exercise of warrants to purchase common stock 3,747,254
 4
 13,963
 (3,313) 
 10,654
Exercise of employee stock options 613,138
 
 1,386
 
 
 1,386
Issuance of restricted common stock 66,828
 
 
 
 
 
Repurchase of shares of restricted common stock (112,333) 
 (544) 
 
 (544)
Cancelled of restricted stock (22,400) 
 
 
 
 
Expired warrants 
 
 290
 (290) 
 
Net loss 
 
 
 
 (31,781) (31,781)
Balance at December 31, 2014 104,452,105
 $104
 $406,349
 $
 $(372,612) $33,841

ZIOPHARM Oncology, Inc.
STATEMENTS OF CHANGES IN STOCKHOLDERS’ EQUITY (Cont.)
(in thousands, except share and per share data)
  
 
Common Stock
 
Additional
Paid-in
Capital
Common
Stock
 
Additional
Paid-in
Capital
Warrants
 
Accumulated
Deficit
 
Total
Stockholders’
Equity/
  Shares Amount 
Stock-based compensation 
 
 7,997
 
 
 7,997
Exercise of employee stock options 2,519,267
 3
 4,566
 
 
 4,568
Issuance of restricted common stock 1,590,574
 2
 (2) 
 
 
Repurchase of shares of restricted common stock (61,819) 
 (518) 
 
 (518)
Repurchase of common stock (3,711) 
 (34) 
 
 (34)
Issuance of common stock, net of commissions and expenses of $6,305 11,500,000
 12
 94,309
 
 
 94,320
Issuance of common stock in licensing agreement 11,722,163
 12
 67,273
 
 
 67,285
Net loss 
 
 
 
 (120,088) (120,088)
Balance at December 31, 2015 131,718,579
 $132
 $579,939
 $
 $(492,700) $87,371


ZIOPHARM Oncology, Inc.
STATEMENTS OF CASH FLOWS
(in thousands)
  For the Year Ended December 31,
  2015 2014 2013
Cash flows from operating activities:      
Net loss $(120,088) $(31,781) $(57,107)
Adjustments to reconcile net loss to net cash used in operating activities:      
Depreciation and amortization 357
 462
 738
Stock-based compensation 7,997
 4,743
 3,507
Change in fair value of warrants   (11,723) (1,185)
Common stock issued in exchange for license agreement 67,285
 
 
Loss on disposal of fixed assets 
 
 585
Change in operating assets and liabilities:      
(Increase) decrease in:      
Receivables (301) 
 (87)
Prepaid expenses and other current assets (10,214) 809
 4,964
Other noncurrent assets (3) 37
 477
Increase (decrease) in:      
Accounts payable 4
 1,582
 (1,087)
Accrued expenses 1,724
 827
 (10,159)
Deferred revenue 53,418
 (1,373) (800)
Deferred rent (189) (213) 625
Other noncurrent liabilities 
 (20) 20
Net cash used in operating activities (10) (36,650) (59,509)
Cash flows from investing activities:      
Purchases of property and equipment (412) (193) (132)
Proceeds from sale of property and equipment 
 
 1
Net cash used in investing activities (412) (193) (131)
Cash flows from financing activities:      
Proceeds from exercise of stock options 4,568
 1,386
 956
Payments to employees for repurchase of restricted common stock (518) (544) (498)
Proceeds from exercise of warrants 
 10,600
 200
Repurchase of common stock (34) 
 
Proceeds from issuance of common stock, net 94,320
 
 53,880
Net cash provided by financing activities 98,336
 11,442
 54,538
Net decrease in cash and cash equivalents 97,914
 (25,401) (5,102)
Cash and cash equivalents, beginning of period 42,803
 68,204
 73,306
Cash and cash equivalents, end of period $140,717
 $42,803
 $68,204
Supplementary disclosure of cash flow information:      
Cash paid for interest $
 $
 $
Cash paid for income taxes $
 $
 $
Supplementary disclosure of noncash investing and financing activities:      
Exercise of equity-classified warrants to common shares $
 $692
 $196
Issuance of common stock in license agreement $67,285
    

Exercise of liability-classified warrants to common shares $
 $54
 $

ZIOPHARM Oncology, Inc.
NOTES TO FINANCIAL STATEMENTS
1.Organization
ZIOPHARM Oncology, Inc., which is referred to as “ZIOPHARM” or the “Company”, is a biopharmaceutical company seeking to acquire, develop and commercialize, on its own or with commercial partners, a diverse portfolio of cancer therapies that address unmet medical needs.
The Company’s operations to date have consisted primarily of raising capital and conducting research and development. The Company’s fiscal year ends on December 31.
The Company has operated at a loss since its inception in 2003 and has minimal revenues. The Company anticipates that losses will continue for the foreseeable future. At December 31, 2015, the Company’s accumulated deficit was approximately $492.7 million. Given its current development plans, the Company anticipates cash resources will be sufficient to fund operations into the fourth quarter of 2017. The Company’s ability to continue operations after its current cash resources are exhausted depends on its ability to obtain additional financing or to achieve profitable operations, as to which no assurances can be given. Cash requirements may vary materially from those now planned because of changes in the Company’s focus and direction of its research and development programs, competitive and technical advances, patent developments, regulatory changes or other developments. Additional financing will be required to continue operations after the Company exhausts its current cash resources and to continue its long-term plans for clinical trials and new product development. There can be no assurance that any such financing can be obtained by the Company, or if obtained, what the terms thereof may be, or that any amount that the Company is able to raise will be adequate to support the Company’s working capital requirements until it achieves profitable operations.
2.Financings
On February 3, 2015, the Company entered into an underwriting agreement with J.P. Morgan Securities LLC, as representative of the several underwriters named therein, relating to the issuance and sale of 10,000,000 shares of its common stock. The price to the public in the offering was $8.75 per share, and the underwriters agreed to purchase the shares from the Company pursuant to the underwriting agreement at a purchase price of $8.225 per share. Under the terms of the underwriting agreement, the Company also granted the underwriters an option, exercisable for 30 days, to purchase up to an additional 1,500,000 shares of common stock at a purchase price of $8.225 per share. The offering was made pursuant to the Company’s effective registration statement on Form S-3 (SEC File No. 333-201826) previously filed with the SEC, and a prospectus supplement thereunder. The underwriters purchased the 10,000,000 shares and the additional 1,500,000 shares on February 9 and February 17, 2015, respectively. The net proceeds from the offering were approximately $94.3 million after deducting underwriting discounts and estimated offering expenses paid by the Company.
On October 23, 2013, the Company entered into an underwriting agreement with J. P. Morgan Securities LLC, as representative of the several underwriters named therein, relating to the issuance and sale of 14,300,000 shares of its common stock. The price to the public in the offering was $3.50 per share, and the underwriters agreed to purchase the shares from the Company pursuant to the underwriting agreement at a purchase price of $3.29 per share. Under the terms of the underwriting agreement, the Company also granted the underwriters an option, exercisable for 30 days, to purchase up to an additional 2,145,000 shares of common stock at a purchase price of $3.29 per share, and the underwriters elected to exercise such option in full. The offering was made pursuant to the Company’s effective registration statement on Form S-3 (SEC File No. 333-177793) previously filed with the SEC, and a prospectus supplement thereunder. The underwriters purchased the 14,300,000 shares and the additional 2,145,000 shares on October 29, 2013. The net proceeds from the offering were approximately $53.9 million after deducting underwriting discounts and estimated offering expenses paid by the Company.

ZIOPHARM Oncology, Inc.
NOTES TO FINANCIAL STATEMENTS
3.Summary of Significant Accounting Policies
Basis of Presentation
The accompanying financial statements have been prepared in accordance with accounting principles generally accepted in the United States of America (“U.S. GAAP”).
Use of Estimates
The preparation of financial statements in conformity with accounting principles generally accepted in the United States of America requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and the disclosure of contingent assets and liabilities at the date of the financial statements and the reported amounts of revenues and expenses during the reporting period. Although the Company regularly assesses these estimates, actual results could differ from those estimates. Changes in estimates are recorded in the period in which they become known.
The Company’s most significant estimates and judgments used in the preparation of our financial statements are:
Clinical trial expenses;
Collaboration agreements;
Fair value measurements for stock based compensation and warrants; and
Income taxes.
Subsequent Events
The Company evaluated all events and transactions that occurred after the balance sheet date through the date of this filing. During this period, the Company did not have any material subsequent events that impacted its financial statements or disclosures.
Cash and Cash Equivalents
Cash equivalents consist primarily of demand deposit accounts and deposits in short-term U.S. treasury money market mutual funds. Cash equivalents are stated at cost, which approximates fair market value.
Concentrations of Credit Risk
Financial instruments which potentially subject the Company to concentrations of credit risk consist principally of cash and cash equivalents. The Company maintains cash accounts in commercial banks, which may, at times, exceed federally insured limits. The Company has not experienced any losses in such accounts. The Company believes it is not exposed to any significant credit risk on cash and cash equivalents.
Property and Equipment
Property and equipment are recorded at cost. Expenditures for maintenance and repairs are charged to expense while the costs of significant improvements are capitalized. Depreciation is provided using the straight-line method over the following estimated useful lives of the related assets, which is between three and five years. Upon retirement or sale, the cost of the assets disposed of and the related accumulated depreciation are eliminated from the balance sheets and related gains or losses are reflected in the statements of operations.

ZIOPHARM Oncology, Inc.
NOTES TO FINANCIAL STATEMENTS
3.Summary of Significant Accounting Policies (Continued)
Restricted Cash
Restricted cash of $388 thousand, which is restricted as collateral for the Company’s facility leases and $104 thousand that is restricted as collateral for a line of credit is included in other assets.
Long-Lived Assets
The Company reviews the carrying values of its long-lived assets for possible impairment whenever events or changes in circumstances indicate that the carrying amounts of the assets may not be recoverable. Any long-lived assets held for disposal are reported at the lower of their carrying amounts or fair values less costs to sell.
Warrants
The Company applied the accounting standard which provided guidance in assessing whether an equity-based financial instrument is indexed to an entity’s own stock for purposes of determining whether a financial instrument should be treated as a derivative. In applying the methodology the Company concluded that certain warrants issued by the Company had terms that did not meet the criteria to be considered indexed to the Company’s own stock and therefore were classified as liabilities in the Company’s balance sheet. The liability classified warrants were subject to re-measurement at each balance sheet date and any change in fair value was recognized as a component of “Other income, net” in the accompanying Statement of Operations. Fair value was measured using the binomial valuation model. All warrants expired in December 2014.
Fair Value Measurements
The Company has certain financial assets and liabilities recorded at fair value which have been classified as Level 1, 2 or 3 within the fair value hierarchy as described in the accounting standards for fair value measurements.
Level 1—Quoted prices in active markets for identical assets or liabilities.
Level 2—Inputs other than Level 1 that are observable, either directly or indirectly, such as quoted prices for similar assets or liabilities; quoted prices in markets that are not active; or other inputs that are observable or can be corroborated by observable market data for substantially the full term of the assets or liabilities.
Level 3—Unobservable inputs that are supported by little or no market activity and that are significant to the fair value of the assets or liabilities.
Assets and liabilities measured at fair value on a recurring basis as of December 31, 2015 and 2014 are as follows:
($ in thousands) Fair Value Measurements at Reporting Date Using
Description 
Balance as of
December 31,
2015
 
Quoted Prices in
Active Markets for
Identical
Assets/Liabilities
(Level 1)
 
Significant Other
Observable
Inputs
(Level 2)
 
Significant
Unobservable
Inputs
(Level 3)
Cash equivalents $137,405
 $137,405
 $
 $

ZIOPHARM Oncology, Inc.
NOTES TO FINANCIAL STATEMENTS
3.Summary of Significant Accounting Policies (Continued)
($ in thousands) Fair Value Measurements at Reporting Date Using
Description 
Balance as of
December 31,
2014
 
Quoted Prices in
Active Markets for
Identical
Assets/Liabilities
(Level 1)
 
Significant Other
Observable
Inputs
(Level 2)
 
Significant
Unobservable
Inputs
(Level 3)
Cash equivalents $37,290
 $37,290
 $
 $
The cash equivalents consist primarily of short term U.S. treasury money market mutual funds which are actively traded.
Revenue Recognition from Collaboration Agreements
The Company has primarily generated revenue through collaboration arrangements with strategic partners for the development and commercialization of product candidates. The Company recognizes revenue for each unit of accounting when evidence of an arrangement exists, delivery has occurred or services have been rendered, the seller’s price to the buyer is fixed or determinable and collectability is reasonably assured
The Company’s collaboration agreements may provide for various types of payments, including upfront payments, funding of research and development, milestone payments, licensing fees and product royalties. The specifics of the Company’s significant agreements are detailed in Note 8, Commitments and Contingencies.
The Company considers a variety of factors in determining the appropriate method of accounting for its collaboration agreements, including whether multiple deliverables can be separated and accounted for individually as separate units of accounting. Where there are multiple deliverables within a collaboration agreement that cannot be separated and therefore are combined into a single unit of accounting, revenues are deferred and recognized over the estimated period of performance, which is typically the development term. If the deliverables can be separated, the Company applies the relevant revenue recognition guidance to each individual deliverable. The specific methodology for the recognition of the underlying revenue is determined on a case-by-case basis according to the facts and circumstances applicable to each agreement. Generally, the Company has accounted for its collaboration agreements as a single unit of accounting.
Milestone payments are recognized as revenue upon achievement of the milestone only if (1) the milestone payment is non-refundable, (2) substantive effort is involved in achieving the milestone and (3) the amount of the milestone is reasonable in relation to the effort expended or the risk associated with achievement of the milestone. If any of these conditions are not met, the milestone payment is deferred and recognized as revenue over the estimated remaining period of performance under the contract as the Company completes its performance obligations. Royalties are recognized as earned in accordance with the terms of various research and collaboration agreements.
Research and Development Costs
Research and development expenditures are charged to the statement of operations as incurred. Such costs include proprietary research and development activities, purchased research and development, and expenses associated with research and development contracts, whether performed by the Company or contracted with independent third parties.

ZIOPHARM Oncology, Inc.
NOTES TO FINANCIAL STATEMENTS
3.Summary of Significant Accounting Policies (Continued)
Income Taxes
Income taxes are accounted for under the liability method. Deferred tax assets and liabilities are recognized for the estimated future tax consequences of temporary differences between the financial statement carrying amounts and their respective tax bases. Deferred tax assets and liabilities are measured using enacted tax rates expected to apply to taxable income in the year in which the temporary differences are expected to be recovered or settled. The Company evaluates the realizability of its deferred tax assets and establishes a valuation allowance when it is more likely than not that all or a portion of deferred tax assets will not be realized.
The Company accounts for uncertain tax positions using a “more-likely-than-not” threshold for recognizing and resolving uncertain tax positions. The evaluation of uncertain tax positions is based on factors including, but not limited to, changes in tax law, the measurement of tax positions taken or expected to be taken in tax returns, the effective settlement of matters subject to audit, new audit activity and changes in facts or circumstances related to a tax position. The Company evaluates this tax position on an annual basis. The Company also accrues for potential interest and penalties, related to unrecognized tax benefits in income tax expense (see Note 10, Income Taxes).
Accounting for Stock-Based Compensation
Stock-based compensation cost is measured at the grant date, based on the estimated fair value of the award, and is recognized as expense over the employee’s requisite service period. Stock-based compensation expense is based on the number of awards ultimately expected to vest and is therefore reduced for an estimate of the awards that are expected to be forfeited prior to vesting. Consistent with prior years, the Company uses the Black-Scholes option pricing model which requires estimates of the expected term option holders will retain their options before exercising them and the estimated volatility of the Company’s common stock price over the expected term.
The Company recognizes the full impact of its share-based employee payment plans in the statements of operations for each of the years ended December 31, 2015, 2014, and 2013 and did not capitalize any such costs on the balance sheets. The Company recognized $5.3 million, $3.7 million, and $2.3 million of compensation expense related to vesting of stock options during the years ended December 31, 2015, 2014, and 2013, respectively. In the years ended December 31, 2015, 2014, and 2013, the Company recognized $2.7 million, $1.0 million, and $1.2 million of compensation expense, respectively, related to vesting of restricted stock (see Note 12, Stock Option Plan). In the years ended December 31, 2015, 2014, and 2013, the Company recognized $8.0 million, $4.7 million, and $3.5 million of compensation expense, respectively, related to vesting of all employee and director awards. The following table presents share-based compensation expense included in the Company’s Statements of Operations:
  Year ended December 31,
(in thousands) 2015 2014 2013
Research and development $1,403
 $1,416
 $792
General and administrative 6,594
 3,327
 2,715
Share based employee compensation expense before tax 7,997
 4,743
 3,507
Income tax benefit 
 
 
Net share based employee compensation expense $7,997
 $4,743
 $3,507

ZIOPHARM Oncology, Inc.
NOTES TO FINANCIAL STATEMENTS
3.Summary of Significant Accounting Policies (Continued)
The fair value of each stock option is estimated at the date of grant using the Black-Scholes option pricing model. The estimated weighted-average fair value of stock options granted to employees in 2015, 2014, and 2013 was approximately $10.47, $3.58, and $2.51 per share, respectively. Assumptions regarding volatility, expected term, dividend yield and risk-free interest rate are required for the Black-Scholes model. The volatility assumption is based on the Company’s historical experience. The risk-free interest rate is based on a U.S. treasury note with a maturity similar to the option award’s expected life. The expected life represents the average period of time that options granted are expected to be outstanding. The Company calculated expected term using the simplified method described in SEC Staff Accounting Bulletin, or SAB, No. 107 and No. 110 as it continues to meet the requirements promulgated in SAB No. 110. The assumptions for volatility, expected life, dividend yield and risk-free interest rate are presented in the table below:
  2015 2014 2013
Weighted average risk-free interest rate 1.46 - 1.93% 1.74 - 2.11% 1.00 - 2.10%
Expected life in years 6 6 6
Expected volatility 79.13 - 86.81% 85.22 - 94.55% 83.40 - 95.96%
Expected dividend yield   
Net Loss Per Share
Basic net loss per share is computed by dividing net loss by the weighted average number of common shares outstanding for the period. The Company’s potentially dilutive shares, which include outstanding common stock options, unvested restricted stock and warrants, have not been included in the computation of diluted net loss per share for any of the periods presented as the result would be antidilutive. Such potential common shares at December 31, 2015, 2014, and 2013 consist of the following:
  December 31,
  2015 2014 2013
Stock options 3,481,468
 6,505,664
 6,747,303
Unvested restricted stock 1,586,388
 144,508
 352,865
Warrants 
 
 10,539,767
  5,067,856
 6,650,172
 17,639,935
New Accounting Pronouncements
In August 2014, the FASB issued ASU 2014-15, Presentation of Financial Statements—Going Concern (Subtopic 205-40) in which management should evaluate whether there are conditions or events, considered in the aggregate, that raise substantial doubt about the entity’s ability to continue as a going concern within one year after the date that the financial statements are issued (or within one year after the date that the financial statements are available to be issued when applicable). When management identifies conditions or events that raise substantial doubt about an entity’s ability to continue as a going concern, management should consider whether its plans that are intended to mitigate those relevant conditions or events will alleviate the substantial doubt. This update is effective for annual periods beginning after December 15, 2016, and early application is permitted for any annual or interim period thereafter.
In May 2014, the FASB issued ASU 2014-09, Revenue from Contracts with Customers (Topic 606), which clarifies the principles for recognizing revenue and develops a common revenue standard for U.S. GAAP and

ZIOPHARM Oncology, Inc.
NOTES TO FINANCIAL STATEMENTS
3.Summary of Significant Accounting Policies (Continued)
IFRS. This standard removes inconsistencies and weaknesses between U.S. GAAP and IFRS in revenue requirements, provides a more robust framework for addressing revenue issues, improves comparability of revenue recognition practices across entities, industries, jurisdictions, and capital markets, provides more useful information to users of financial statements through improved disclosure requirements, and simplifies the preparation of financial statements by reducing the number of requirements to which an entity must refer. This update is effective for annual periods beginning after December 15, 2017, including interim periods within that reporting period and early application is not permitted. The Company is still evaluating this standard and its impact on our financial position or results of operations.
4.Restructuring
The Company underwent restructuring activities during the year ended December 31, 2013 which included a reduction in workforce and office space, resulting in sublease agreements in Boston and New York. As a result, the Company incurred restructuring charges of $1.7 million, $0.6 million was included in general and administrative expenses and $1.1 million was included in research and development expenses. The Company also incurred charges for exit and disposal activities from the Boston and New York sublease agreements which resulted in an aggregate loss of $0.8 million recorded in general and administrative expenses, and a loss on the disposal of fixed assets of $0.6 million, recorded in Other income in the Statement of Operations for the year ended December 31, 2013.
On October 17, 2013, the Company entered into a sublease agreement to lease 7,259 square feet in its New York office to a subtenant. The Company remains primarily liable to pay rent on the original lease. Accordingly, the Company recorded a loss on the sublease in the amount of $729 thousand for the year ended December 31, 2013, representing the remaining contractual obligation of $2.3 million, less $1.6 million in payments from our subtenant. The Company retired assets in this subleased area as a result of this sublease with a net book value of $392 thousand, and recorded a loss on disposal of fixed assets for the same amount for the year ended December 31, 2013.
On August 30, 2013, the Company entered into a sublease agreement to lease 5,249 square feet in our Boston office to a subtenant. The Company remains primarily liable to pay rent on the original lease. The Company recorded a loss on the sublease in the amount of $42 thousand for the year ended December 31, 2013, representing the remaining contractual obligation of $367 thousand, less $325 thousand in payments from our subtenant. The Company retired assets in this subleased area as a result of this sublease with a net book value of $194 thousand, and recorded a loss on disposal of fixed assets. The company previously held a security deposit of $20 thousand in accordance with the sublease, which was recorded in other non-current assets and other liabilities on the balance sheet for the year ended December 31, 2013. This sublease tenant vacated the lease in October 2014. On May 22, 2015, the Company subleased previously vacant office space in the Boston Office for approximately $105 thousand for the period of June 2015 through August 2016. We expect to receive a total of $44 thousand in the next year from our subtenant in the Boston Office.

ZIOPHARM Oncology, Inc.
NOTES TO FINANCIAL STATEMENTS
5.Property and Equipment, net
Property and equipment, net, consists of the following:
  December 31,
(in thousands) 2015 2014
Office and computer equipment $1,105
 $1,094
Software 886
 874
Leasehold improvements 990
 927
Manufacturing equipment 572
 251
  3,553
 3,146
Less: accumulated depreciation (2,972) (2,615)
Property and equipment, net $581
 $531
Depreciation and amortization charged to the Statement of Operations for the years ended December 31, 2015, 2014, and 2013 was: $358 thousand, $462 thousand and, $738 thousand, respectively.
6.Accrued Expenses
Accrued expenses consist of the following:
  December 31,
(in thousands) 2015 2014
Clinical consulting services $2,331
 $2,802
Preclinical services 3,976
 2,027
Employee compensation 1,453
 768
Professional services 317
 422
Payroll taxes and benefits 289
 417
Manufacturing services 253
 308
Accrued vacation 221
 212
Other consulting services 66
 226
Total $8,906
 $7,182
7.Related Party Transactions
On January 6, 2011, the Company entered into an Exclusive Channel Partner Agreement, which is referred to as the Channel Agreement, with Intrexon Corporation, or Intrexon (see Note 8, Commitments and Contingencies). A director of the Company, Randall J. Kirk, is the CEO, a director, and the largest stockholder of Intrexon.
On March 27, 2015, the Company and Intrexon entered into a Second Amendment to Exclusive Channel Partner Agreement amending the Channel Agreement, which is referred to as the ECP Amendment. The ECP Amendment modified the scope of the parties’ collaboration under the Channel Agreement in connection with the worldwide License and Collaboration Agreement, or the Ares Trading Agreement, which the Company and Intrexon entered into with Ares Trading S.A., or Ares Trading, on March 27, 2015. The ECP Amendment provided that Intrexon will pay to the Company fifty percent of all payments that Intrexon receives for upfronts, milestones and royalties under the Ares Trading Agreement (see Note 8, Commitments and Contingencies). The Amendment also reduces Intrexon’s aggregate commitment under a Stock Purchase Agreement that the parties

ZIOPHARM Oncology, Inc.
NOTES TO FINANCIAL STATEMENTS
7.Related Party Transactions (Continued)
executed in connection with the initial Channel Agreement to purchase the Company’s common stock from $50.0 million to $43.5 million, which has been satisfied.
On January 13, 2015, the Company, together with Intrexon, entered into a license agreement with MD Anderson, which is referred to as the MD Anderson License. Pursuant to the MD Anderson License, the Company and Intrexon hold an exclusive, worldwide license to certain technologies owned and licensed by MD Anderson including technologies relating to novel CAR+ T cell therapies arising from the laboratory of Laurence Cooper, M.D., Ph.D., the Chief Executive Officer of the Company, formerly a professor of pediatrics at MD Anderson and now currently a visiting scientist under that institution’s policies, as well as either co-exclusive or non-exclusive licenses under certain related technologies. In partial consideration for entering into the MD Anderson License, the Company issued MD Anderson an aggregate of 11,722,163 shares of common stock for which the Company incurred a $67.3 million charge. The Company has determined that the rights acquired in the MD Anderson License represent in-process research and development with no alternative future use. As a result of the common stock issued to MD Anderson in connection with this transaction, MD Anderson became a beneficial holder of more than five percent of the Company’s common stock. (see Note 8, Commitments and Contingencies). During the year ending December 31, 2015, the Company made three quarterly payments totaling an aggregate of $11.25 million under this arrangement.
On February 3, 2015, Intrexon purchased 1,440,000 shares of common stock in the Company’s public offering (see Note 2, Financings) upon the same terms as others that participated in the offering.
On June 29, 2015, the Company re-purchased 3,711 shares of common stock from Intrexon, at a discount of 5% to the closing price of the Company’s common stock on the date of purchase, which represented fractional shares that resulted from Intrexon’s special stock dividend of the Company’s shares to Intrexon’s shareholders, for $34 thousand. On January 8, 2016, the Company purchased a remaining 168 shares from Intrexon for $2 thousand.
During the years ended December 31, 2015, 2014 and 2013, the Company expensed $16.3 million, $12.0 million, and $7.8 million, respectively, for services performed by Intrexon. As of December 31, 2015 and 2014 the Company has recorded $4.6 million and $1.9 million in current liabilities, respectively, for amounts due to Intrexon.
On September 28, 2015, the Company, entered into a new Exclusive Channel Collaboration Agreement, or the GvHD Agreement, with Intrexon, whereby the Company will use Intrexon’s technology directed towards in vivo expression of effectors to research, develop and commercialize products for use in the treatment or prevention of graft-versus-host disease, or GvHD (see Note 8, Commitments and Contingencies). The Company paid Intrexon a technology access fee of $10 million in cash in October 2015 and will reimburse Intrexon for all research and development costs. Subject to certain expense allocations and other offsets provided in the ECC Agreement, the ECC Agreement also provides for equal sharing of the profits derived from the sale of the Products (see Note 8, Commitments and Contingencies).
8.Commitments and Contingencies
Operating Leases
Prior to December 31, 2012, the Company entered into an operating lease in New York, NY for office space. In accordance with this agreement, the Company entered into a letter of credit in the amount of $388 thousand, naming the Company’s landlord as beneficiary. In January 2012, the Company amended the lease agreement, adding additional office space. The collateral for the letter of credit is restricted cash and recorded in other non-

ZIOPHARM Oncology, Inc.
NOTES TO FINANCIAL STATEMENTS
8.Commitments and Contingencies (Continued)
current assets on the balance sheet as of December 31, 2015 and 2014. The lease for office space in New York, NY expires in October 2018.
On October 17, 2013, the Company entered into a sublease agreement to lease all of its New York office space to a subtenant. The Company remains primarily liable to pay rent on the original lease. The Company recorded a loss on the sublease in the amount of $729 thousand for the year ended December 31, 2013, representing the remaining contractual obligation of $2.3 million, less $1.6 million in payments from its subtenant. The Company retired assets as a result of this sublease with a net book value of $392 thousand, and recorded a loss on disposal of fixed assets for the same amount for the year ended December 31, 2013. The Company continues to maintain the $388 thousand letter of credit in respect of the New York office space.
Prior to December 31, 2012, the Company entered into separate operating lease agreements for various spaces in a building in Boston, MA. In June 2012, the Company re-negotiated a master lease for the entire Boston office space that incorporated all three lease agreements under the same master agreement expiring in August 2016. As of December 31, 2015 and 2014, a total security deposit of $127 thousand is included in deposits on the balance sheet.
On August 30, 2013, the Company entered into a sublease agreement to lease a portion of its Boston office to a subtenant. The Company remains liable to pay rent on the original lease. The Company recorded a loss on the sublease in the amount of $42 thousand for the year ended December 31, 2013, representing the remaining contractual obligation of $367 thousand, less $325 thousand in payments from its subtenant. This sublease tenant vacated the leased premises in October 2014. At December 31, 2014, the Company applied the $20 thousand deposit received from the sublease tenant against its outstanding rent obligation. On March 31, 2015, the Company recorded a loss of $167 thousand on the first floor sublease. On May 22, 2015, the Company subleased the vacant office space for approximately $105 thousand for the period of June 2015 through August 2016, and the tenant provided a security deposit of $17 thousand. Since the prior lease obligation has been fully expensed, rent received from the tenant will reduce current rent expense.
Future net minimum lease payments under operating leases as of December 31, 2015 are as follows (in thousands):
  
2016$1,139
2017928
2018851
2019427
2020 and beyond712
  
 4,057
Less: contractual sublease income(962)
  
Future minimum lease payments, net$3,095
  
Total rent expense was approximately $1.0 million, $1.2 million, and $1.0 million for the years ended December 31, 2015, 2014, and 2013.
The Company records rent expense on a straight-line basis over the term of the lease. Accordingly, the Company has recorded a liability for deferred rent at December 31, 2015 and 2014 of $661 thousand ($348 thousand current and $313 long-term) and 2014 of $850 thousand ($280 thousand current and $570 long-term) respectively, which is recorded in deferred rent on the balance sheet.

ZIOPHARM Oncology, Inc.
NOTES TO FINANCIAL STATEMENTS
8.Commitments and Contingencies (Continued)
License Agreements
Exclusive Channel Partner Agreement with Intrexon Corporation for the Cancer Programs
On January 6, 2011, the Company entered into an Exclusive Channel Partner Agreement, or the Channel Agreement, with Intrexon that governs a “channel partnering” arrangement in which the Company uses Intrexon’s technology to research, develop and commercialize products in which DNA is administered to humans for expression of anti-cancer effectors for the purpose of treatment or prophylaxis of cancer, which the Company collectively refers to as the Cancer Program. This Channel Agreement establishes committees comprised of representatives of the Company and Intrexon that govern activities related to the Cancer Program in the areas of project establishment, chemistry, manufacturing and controls, clinical and regulatory matters, commercialization efforts and intellectual property.
The Channel Agreement grants the Company a worldwide license to use patents and other intellectual property of Intrexon in connection with the research, development, use, importing, manufacture, sale, and offer for sale of products involving DNA administered to humans for expression of anti-cancer effectors for the purpose of treatment or prophylaxis of cancer, which is collectively referred to as the ZIOPHARM Products. Such license is exclusive with respect to any clinical development, selling, offering for sale or other commercialization of ZIOPHARM Products, and otherwise is non-exclusive. Subject to limited exceptions, the Company may not sublicense these rights without Intrexon’s written consent.
Under the Channel Agreement, and subject to certain exceptions, the Company is responsible for, among other things, the performance of the Cancer Program, including the development, commercialization and certain aspects of manufacturing of ZIOPHARM Products. Intrexon is responsible for establishing manufacturing capabilities and facilities for the bulk manufacture of products developed under the Cancer Program, certain other aspects of manufacturing and costs of discovery-stage research with respect to platform improvements and costs of filing, prosecution and maintenance of Intrexon’s patents.
Subject to certain expense allocations and other offsets provided in the Channel Agreement, the Company will pay Intrexon on a quarterly basis 50% of net profits derived in that quarter from the sale of ZIOPHARM Products, calculated on a ZIOPHARM Product-by- ZIOPHARM Product basis. The Company has likewise agreed to pay Intrexon on a quarterly basis 50% of revenue obtained in that quarter from a sublicensor in the event of a sublicensing arrangement. In addition, in partial consideration for each party’s execution and delivery of the Channel Agreement, the Company entered into a stock purchase agreement with Intrexon.
Upon termination of the Channel Agreement, the Company may continue to develop and commercialize any ZIOPHARM Product that, at the time of termination:
Is being commercialized by the Company;
Has received regulatory approval;
Is a subject of an application for regulatory approval that is pending before the applicable regulatory authority; or
Is the subject of at least an ongoing Phase 2 clinical trial (in the case of a termination by Intrexon due to an uncured breach or a voluntary termination by the Company), or an ongoing Phase 1 clinical trial in the field (in the case of a termination by the Company due to an uncured breach or a termination by Intrexon following an unconsented assignment by the Company or its election not to pursue development of a Superior Therapy (as defined in the Channel Agreement)).

ZIOPHARM Oncology, Inc.
NOTES TO FINANCIAL STATEMENTS
8.Commitments and Contingencies (Continued)
The Company’s obligation to pay 50% of net profits or revenue described above with respect to these “retained” products will survive termination of the Channel Agreement.
On March 27, 2015, the Company and Intrexon entered into an Exclusive Channel Partner Amendment, or ECP Amendment, amending the Channel Agreement. The ECP Amendment modifies the scope of the parties’ collaboration under the Channel Agreement in connection with the Ares Trading Agreement discussed below. Pursuant to the ECP Amendment, the chimeric antigen receptor T cell products to be developed and commercialized pursuant to the Ares Trading Agreement shall be included within the Intrexon/ZIOPHARM collaboration under the Channel Agreement. The ECP Amendment provides that Intrexon will pay to the Company fifty percent of all payments Intrexon receives for upfronts, milestones and royalties under the Ares Trading Agreement.
Exclusive Channel Collaboration Agreement with Intrexon Corporation for Graft-Versus-Host Disease
On September 28, 2015, the Company, entered into a new Exclusive Channel Collaboration Agreement, or the GvHD Agreement, with Intrexon, whereby the Company will use Intrexon’s technology directed towards in vivo expression of effectors to research, develop and commercialize products for use in the treatment or prevention of graft-versus-host disease, or GvHD. The exclusive collaboration, or the GvHD Program, will focus on the pursuit of the following engineered cell therapy strategies, used either separately or in combination, for the targeted treatment of GvHD: (i) the infusion of regulatory T cells expressing membrane-bound and/or soluble interleukin-2 and (ii) the deployment of orally delivered, genetically modified L. lactis that express interleukin-2 to modulate immune function. The GvHD Agreement establishes committees comprised of Company and Intrexon representatives that will govern activities related to the GvHD Program in the areas of project establishment, chemistry, manufacturing and controls, clinical and regulatory matters, commercialization activities and intellectual property.
The GvHD Agreement grants the Company a worldwide license to use specified patents and other intellectual property of Intrexon in connection with the research, development, use, importing, manufacture, sale, and offer for sale of products developed under the GvHD Program, or the Products. Such license is exclusive with respect to any clinical development, selling, offering for sale or other commercialization of the Products, and otherwise is non-exclusive. Subject to limited exceptions, the Company may not sublicense the rights described without Intrexon’s written consent.
Under the GvHD Agreement, and subject to certain exceptions, the Company is responsible for, among other things, the performance of the GvHD Program including development, commercialization and certain aspects of manufacturing of the Products. Among other things, Intrexon is responsible for the costs of establishing manufacturing capabilities and facilities for the bulk manufacture of the Products, certain other aspects of manufacturing, costs of discovery-stage research with respect to platform improvements and costs of filing, prosecution and maintenance of Intrexon’s patents.
The Company paid Intrexon a technology access fee of $10 million in cash in October 2015 and will reimburse Intrexon for all research and development costs. Subject to certain expense allocations and other offsets provided in the GvHD Agreement, the GvHD Agreement also provides for equal sharing of the profits derived from the sale of the Products.
During the first 24 months after September 28, 2015, the GvHD Agreement may be terminated by (i) either party in the event of a material breach by the other, except for the failure of the other party to use diligent efforts or to

ZIOPHARM Oncology, Inc.
NOTES TO FINANCIAL STATEMENTS
8.Commitments and Contingencies (Continued)
comply with any diligence obligations set forth in the GvHD Agreement and (ii) Intrexon under certain circumstances if the Company assigns its rights under the GvHD Agreement without Intrexon’s consent. Following such twenty-four month period, Intrexon may also terminate the GvHD Agreement if the Company elects not to pursue the development of the GvHD Program identified by Intrexon that is a “Superior Therapy,” as such term is defined in the GvHD Agreement. Also following such period, the Company may voluntarily terminate the GvHD Agreement upon 90 days’ written notice to Intrexon.
Upon termination of the GvHD Agreement, the Company may continue to develop and commercialize any Product that, at the time of termination:
is being commercialized by the Company,
has received regulatory approval,
is a subject of an application for regulatory approval that is pending before the applicable regulatory authority, or
is the subject of at least an ongoing Phase 2 clinical trial (in the case of a termination by Intrexon due to a Company uncured breach or a voluntary termination by the Company), or an ongoing Phase 1 clinical trial (in the case of a termination by the Company due to an Intrexon uncured breach or a termination by Intrexon following an unconsented assignment by the Company or the Company’s election not to pursue development of a Superior Therapy).
The Company’s obligation to pay 50% of net profits or revenue with respect to these “retained” products will survive termination of the GvHD Agreement.
The Company has determined that the rights acquired in the GvHD Agreement represent in-process research and development with no alternative future use. Accordingly, the Company recorded a charge of $10.0 million to research and development expense in 2015.
License Agreement—The University of Texas MD Anderson Cancer Center
On January 13, 2015, the Company, together with Intrexon, entered into a License Agreement, or the MD Anderson License, with The University of Texas MD Anderson Cancer Center, or MD Anderson. Pursuant to the MD Anderson License, the Company and Intrexon hold an exclusive, worldwide license to certain technologies owned and licensed by MD Anderson including technologies relating to novel chimeric antigen receptor (CAR) T cell therapies, non-viral gene transfer systems, genetic modification and/or propagation of immune cells and other cellular therapy approaches, Natural Killer, or NK Cells and T cell receptors, or TCR’s arising from the laboratory of Laurence Cooper, M.D., Ph.D., who became the Chief Executive Officer of the Company on May 7, 2015 and was formerly a tenured professor of pediatrics at MD Anderson and now currently a visiting scientist under that institution’s policies, as well as either co-exclusive or non-exclusive licenses under certain related technologies.
Pursuant to the terms of the MD Anderson License, MD Anderson received consideration consisting of $50 million in shares of the Company’s common stock (or 10,124,561 shares), and $50 million in shares of Intrexon’s common stock, in each case based on a trailing 20 day volume weighted average of the closing price of the Company’s and Intrexon’s common stock ending on the date prior to the announcement of the entry into the MD Anderson License, collectively referred to as the License Shares, pursuant to the terms of the License Shares Securities Issuance Agreement described below. The License Shares were issued to MD Anderson on March 11, 2015 pursuant to the terms of the MD Anderson License.

ZIOPHARM Oncology, Inc.
NOTES TO FINANCIAL STATEMENTS
8.Commitments and Contingencies (Continued)
On January 9, 2015, in order to induce MD Anderson to enter into the MD Anderson License on an accelerated schedule, the Company and Intrexon entered into a letter agreement, or the Letter Agreement, pursuant to which MD Anderson received consideration of $7.5 million in shares of the Company’s common stock (or 1,597,602 shares), and $7.5 million in shares of Intrexon’s common stock, in each case based on a trailing 20 day volume weighted average of the closing price of the Company’s and Intrexon’s common stock ending on the date prior to the execution of the Letter Agreement, collectively referred to as the Incentive Shares, in the event that the MD Anderson License was entered into on or prior to 8:00 am Pacific Time on January 14, 2015. The Incentive Shares were issued to MD Anderson on March 11, 2015 pursuant to the terms of the Incentive Shares Securities Issuance Agreement described below.
On August 17, 2015, the Company, Intrexon and MD Anderson entered into a research and development agreement, or the Research and Development Agreement, to formalize the scope and process for the transfer by MD Anderson, pursuant to the terms of the MD Anderson License, of certain existing research programs and related technology rights, as well as the terms and conditions for future collaborative research and development of new and ongoing research programs.
Pursuant to the Research and Development Agreement, the Company, Intrexon and MD Anderson have agreed to form a joint steering committee that will oversee and manage the new and ongoing research programs. As provided under the MD Anderson License, the Company will provide funding for research and development activities in support of the research programs under the Research and Development Agreement for a period of three years and in an amount of no less than $15 million and no greater than $20 million per year. During the year ended December 31, 2015, the Company made three quarterly payments totaling an aggregate of $11.25 million under this arrangement. As of December 31, 2015, MD Anderson has used $911 thousand to offset costs incurred pursuant to the MD Anderson License and the Research and Development Agreement. The net balance of $10.3 million is included in other current assets at December 31, 2015.
The term of the MD Anderson License expires on the last to occur of (a) the expiration of all patents licensed thereunder, or (b) the twentieth anniversary of the date of the License; provided, however, that following the expiration of the term of the MD Anderson License, the Company and Intrexon shall then have a fully-paid up, royalty free, perpetual, irrevocable and sublicensable license to use the licensed intellectual property thereunder. After ten years from the date of the MD Anderson License and subject to a 90-day cure period, MD Anderson will have the right to convert the MD Anderson License into a non-exclusive license if the Company and Intrexon are not using commercially reasonable efforts to commercialize the licensed intellectual property on a case-by-case basis. After five years from the date of the MD Anderson License and subject to a 180-day cure period, MD Anderson will have the right to terminate the MD Anderson License with respect to specific technology(ies) funded by the government or subject to a third party contract if the Company and Intrexon are not meeting the diligence requirements in such funding agreement or contract, as applicable. MD Anderson may also terminate the agreement with written notice upon material breach by the Company and Intrexon, if such breach has not been cured within 60 days of receiving such notice. In addition, the MD Anderson License will terminate upon the occurrence of certain insolvency events for both the Company and Intrexon and may be terminated by the mutual written agreement of the Company, Intrexon and MD Anderson.
In connection with the License and the issuance of the License Shares and the Incentive Shares, on January 13, 2015, the Company and MD Anderson entered into a Registration Rights Agreement, or the Registration Rights Agreement, pursuant to which the Company agreed to file a “resale” registration statement, or the Registration Statement, registering the resale of the License Shares, the Incentive Shares and any other shares of the Company’s common stock held by MD Anderson on the date that the Registration Statement is filed Under the

ZIOPHARM Oncology, Inc.
NOTES TO FINANCIAL STATEMENTS
8.Commitments and Contingencies (Continued)
Registration Rights Agreement, the Company is obligated to maintain the effectiveness of the Registration Statement until all securities therein are sold or are otherwise can be sold pursuant to Rule 144, without any restrictions. A prospectus supplement under the Company’s already effective registration statement on Form S-3 (File No. 333-201826), was filed on April 1, 2015 in satisfaction of the Company’s obligations under the Registration Rights Agreement.
The Company has determined that the rights acquired in the MD Anderson License represent in process research and development with no alternative future use. Accordingly, the Company recorded a charge of $67.3 million to research and development expense, as included in the statement of operations for the year ended December 31, 2015, representing the fair value of the 11,722,163 shares of its common stock on the date the MD Anderson License was executed.
Ares Trading License and Collaboration Agreement
On March 27, 2015, the Company and Intrexon signed a worldwide License and Collaboration Agreement, or the Ares Trading Agreement, with Ares Trading S.A. or “Ares Trading”, a subsidiary of the biopharmaceutical business of Merck KGaA, Darmstadt, Germany, through which the parties established a collaboration for the research and development and commercialization of certain products for the prophylactic, therapeutic, palliative or diagnostic use for cancer in humans.
Under the collaboration, Ares Trading will elect CAR-T targets, of which two have been selected during 2015, and for which Ares Trading will provide certain research funding. The Company is responsible for certain research and development expenditures. Once these candidates reach investigational new drug (IND) stage, the programs will be transferred to Ares Trading for clinical development and commercialization. The Company expects to perform multiple preclinical development programs, each consisting of the development of one product candidate, pursuant to the agreement. The Company and Intrexon will also independently conduct research and development on other CAR-T candidates, with Ares Trading having the opportunity during clinical development to opt-in.
Intrexon is entitled to receive $5.0 million payable in equal quarterly installments over two years for each identified product candidate, which will be used to fund discovery work. The Company will be responsible for costs exceeding the quarterly installments and all other costs of the preclinical research and development.
Ares Trading paid a non-refundable upfront fee of $115.0 million to Intrexon as consideration for entry into the Ares Trading Agreement. Pursuant to the ECP Amendment, the Company was entitled to receive 50% of the upfront fee, or $57.5 million, which we received from Intrexon in July 2015.
The Ares Trading Agreement provides for up to $413.0 million of potential payments for certain development and commercial milestones for each product candidate, and royalties ranging from the lower-single digits to the low-teens of net sales derived from the sale of products developed under agreement. The Ares Trading Agreement also provides for up to $50.0 million of payments upon the achievement of certain technical milestones. Intrexon will pay 50% of all milestone and royalty payments that it receives under the Ares Trading Agreement to the Company pursuant to the ECP Amendment.
The term of the Ares Trading Agreement commenced in May 2015 and may be terminated by either party in the event of a material breach as defined in the agreement and may be terminated voluntarily by Ares Trading upon 90 days written notice to the Company.

ZIOPHARM Oncology, Inc.
NOTES TO FINANCIAL STATEMENTS
8.Commitments and Contingencies (Continued)
The Company considered FASB Accounting Standards Codification 605-25, Multiple-Element Arrangements, in evaluating the appropriate accounting for the Ares Trading Agreement. In accordance with this guidance, the Company identified the license and research and development services as the Company’s deliverables in the arrangement. The Company concluded that the license does not have standalone value from the research and development services. Accordingly, the Ares Trading Agreement is accounted for by the Company as a single unit of accounting. The $57.5 million upfront payment received by the Company was recorded as deferred revenue and is being recognized over the estimated period of performance of the research and development services currently estimated to be 9 years, beginning with the commencement of the research and development services. During the twelve months ended December 31, 2015, the Company recognized $3.2 million of revenue related to the Ares Trading Agreement. The remaining balance of deferred revenue associated with the upfront payment was $54.3 million, of which $6.4 million is current and $47.9 million is classified as long term at December 31, 2015.
License Agreements with DEKK-Tec, Inc. and Southern Research Institute
On October 15, 2004, the Company entered into a license agreement with DEKK-Tec, Inc., or DEKK-Tec, pursuant to which it was granted an exclusive, worldwide license for palifosfamide. All of the Company’s rights and obligations under the DEKK-Tec license agreement was assigned to Predictive Therapeutics, Ltd., in the first quarter of 2016, with the exception of the Company’s obligation under a stock option to acquire 13,808 shares of the Company’s common stock at an exercise price of $0.02 per share, which remains outstanding in accordance with the terms.
On February 5, 2007, the Company exercised an option to enter into an exclusive license agreement with Southern Research Institute, or SRI, for certain isophosphoramide mustard analogs. Under the license agreement, the Company was required to remit minimum annual royalty payments of $25 thousand until the first commercial sale of a licensed product. These payments were made for the years ended December 31, 2015, 2014, and 2013. All of the Company’s remaining obligations under the SRI license agreement were assigned to Predictive Therapeutics, Ltd., in the first quarter of 2016.
License Agreement with Predictive Therapeutics, Ltd.
On November 12, 2015, the Company entered into a License Agreement with Predictive Therapeutics, Ltd., or Predictive. Pursuant to the License Agreement, the Company granted Predictive an exclusive license to develop and commercialize palifosfamide.
In exchange, the Company received an upfront payment of $250 thousand and is entitled to receive additional payments of up to $12.8 million in development-and sales-based milestones, single digit royalty payments on net sales of palifosfamide, once commercialized, and a percentage of any sublicense revenues generated by Predictive. Predictive will be responsible for all costs related to the development, manufacturing and commercialization of palifosfamide.
The $250 thousand upfront payment received in November 2015 is being amortized over the period of the Company’s research and development effort related to transitional services. There are certain deliverables that are included in the License Agreement including transfer of intellectual property and prior research and development results, which are estimated by management to be completed by June 30, 2016. Accordingly, the Company has recorded $50 thousand in revenue during the twelve months ended December 31, 2015. The remaining deferred revenue balance of $200 thousand at December 31, 2015 has been classified as current. In accordance with the License Agreement with Predictive, the Company is no longer obligated to continue their

ZIOPHARM Oncology, Inc.
NOTES TO FINANCIAL STATEMENTS
8.Commitments and Contingencies (Continued)
research and development efforts beyond the transitional services. In the first quarter of 2016, all of the Company’s rights and obligations under the DEKK-Tec and SRI license agreements were assigned to Predictive Therapeutics, Ltd., with the exception of the Company’s obligation to DEKK-Tec under a stock option to acquire 13,808 shares of the Company’s common stock at an exercise price of $0.02 per share, which remains outstanding in accordance with the terms.
Patent and Technology License Agreement—The University of Texas MD Anderson Cancer Center and the Texas A&M University System.
On August 24, 2004, the Company entered into a patent and technology license agreement with MD Anderson, which the Company refers to, collectively, as the Licensors. Under this agreement, the Company was granted an exclusive, worldwide license to rights (including rights to U.S. and foreign patent and patent applications and related improvements and know-how) for the manufacture and commercialization of two classes of organic arsenicals (water- and lipid-based) for human and animal use. The class of water-based organic arsenicals includes darinaparsin.
The Company issued options to purchase 50,222 shares outside of the Company’s stock option plans following the successful completion of certain clinical milestones, of which 37,666 have vested. The remaining 12,556 shares will vest upon enrollment of the first patient in a multi-center pivotal clinical trial i.e. a human clinical trial intended to provide the substantial evidence of efficacy necessary to support the filing of an approvable New Drug Application, or NDA. In addition, the Licensors are entitled to receive certain milestone payments. The Company may be required to make additional payments upon achievement of certain other milestones in varying amounts which on a cumulative basis could total up to an additional $4.5 million. In addition, the Licensors are entitled to receive single digit percentage royalty payments on sales from a licensed product and will also be entitled to receive a portion of any fees that the Company may receive from a possible sublicense under certain circumstances.
Collaboration Agreement with Solasia Pharma K.K.
On March 7, 2011, the Company entered into a License and Collaboration Agreement with Solasia Pharma K.K., or Solasia. Pursuant to the License and Collaboration Agreement, the Company granted Solasia an exclusive license to develop and commercialize darinaparsin in both IV and oral forms and related organic arsenic molecules, in all indications for human use in a pan- Asian/Pacific territory comprised of Japan, China, Hong Kong, Macau, Republic of Korea, Taiwan, Singapore, Australia, New Zealand, Malaysia, Indonesia, Philippines and Thailand.
As consideration for the license, the Company received an upfront payment of $5.0 million to be used exclusively for further clinical development of darinaparsin outside of the pan-Asian/Pacific territory, and will be entitled to receive additional payments of up to $32.5 million in development-based milestones and up to $53.5 million in sales-based milestones. The Company will also be entitled to receive double digit royalty payments from Solasia based upon net sales of licensed products in the applicable territories, once commercialized, and a percentage of sublicense revenues generated by Solasia. Under the License and Collaboration Agreement, the Company provided Solasia with drug product to conduct clinical trials. These transfers were accounted for as a reduction of research and development costs and an increase in collaboration receivables. The agreement provides that Solasia will be responsible for the development and commercialization of darinaparsin in the pan-Asian/Pacific territory.
On July 31, 2014, the Company entered into an amendment and restatement of the License and Collaboration Agreement granting Solasia an exclusive worldwide license to develop and commercialize darinaparsin, and

ZIOPHARM Oncology, Inc.
NOTES TO FINANCIAL STATEMENTS
8.Commitments and Contingencies (Continued)
related organoarsenic molecules, in both intravenous and oral forms in all indications for human use. In exchange, the Company will be eligible to receive from Solasia development-and sales-based milestones, a royalty on net sales of darinaparsin, once commercialized, and a percentage of any sublicense revenues generated by Solasia.
Solasia will be responsible for all costs related to the development, manufacturing and commercialization of darinaparsin. The Company’s Licensors, as defined in the agreement, will receive a portion of all milestone and royalty payments made by Solasia to the Company in accordance with the terms of the Company’s license agreement with the Licensors.
The $5.0 million upfront payment received in March 2011 is being amortized over the period of the Company’s research and development effort. The Company originally estimated this period to be 75 months. In accordance with the amended and restated License and Collaboration Agreement with Solasia, the Company is no longer obligated to continue their research and development efforts in connection with the upfront payment. However, there are certain deliverables that are included in the amended and restated License and Collaboration Agreement including transfer of intellectual property and prior research and development results, which were originally estimated by management to be completed by March 31, 2015 when the amended and restated License and Collaboration Agreement was signed in July 2014. Management subsequently reassessed the period of performance related to the remaining transitional services to be completed under the amended and restated License and Collaboration Agreement and determined that the services are now expected to be completed by March 31, 2016. Accordingly, the Company has recorded $1.1 million in revenue during the twelve months ended December 31, 2015. The remaining deferred revenue balance of $272 thousand at December 31, 2015 has been classified as current.
License Agreement with Baxter Healthcare Corporation
On November 3, 2006, the Company entered into a definitive Asset Purchase Agreement for indibulin and a License Agreement to proprietary nanosuspension technology with affiliates of Baxter Healthcare S.A. The purchase included the entire indibulin intellectual property portfolio as well as existing drug substance and capsule inventories. The terms of the Asset Purchase Agreement included an upfront cash payment and an additional payment for existing inventory. During each of the years ended December 31, 2015, 2014, and 2013, the installment of $250 thousand were paid and expensed.
CRO Services Agreement with Novella Clinical, Inc.
On December 4, 2008, the Company entered into a Master Clinical Research Organization Services Agreement with Novella Clinical, Inc., or Novella, under which Novella provides clinical research organization, or CRO, services in support of the Company’s clinical trials. The work order for the newest trial being conducted by Novella was signed on November 2, 2012. Novella was entitled to cumulative payments of up to $790 thousand under these arrangements, which is payable in varying amounts upon Novella achieving specified milestones.
On August 18, 2014 and November 6, 2014, the Company signed two respective amendments of the Master Clinical Research Organization Services Agreement with Novella. The amendments reflect the removal of data management, statistical and clinical study report services, as well as a change in the timeline and scope of clinical trial support. During the year ended December 31, 2014, three clinical milestones were met and expensed totaling $236 thousand. The remaining milestone of $10 thousand was met and expensed during the quarter ended March 31, 2015. There are no remaining obligations under this agreement.

ZIOPHARM Oncology, Inc.
NOTES TO FINANCIAL STATEMENTS
9.Warrants
The Company has issued both warrants that are accounted for as liabilities and warrants that are accounted for as equity instruments.
The Company follows accounting standards that provide guidance in assessing whether an equity-issued financial instrument is indexed to an entity’s own stock for purposes of determining whether a financial instrument should be treated as a derivative and classified as a liability. Accounting standards require that liability classified warrants be recorded at their fair value at each financial reporting period and the resulting gain or loss be recorded as other income (expense) in the Statements of Operations. Fair value is measured using the binomial valuation model.
Liability-Classified Warrants
In connection with a December 2009 public offering, the Company issued warrants to purchase an aggregate of 8,206,520 shares of common stock, including the investor warrants and 464,520 warrants issued to the Underwriters. The warrants had a 5 year term and expired in December 2014. Subject to certain exceptions, these warrants provided anti-dilution protection in the event the Company should subsequently issue common stock or common stock equivalents at a price less than the exercise price of the warrants then in effect.
The Company assessed whether the Warrants required accounting as derivatives. The Company determined that the warrants were not indexed to the Company’s own stock in accordance with FASB Accounting Standards Codification, Derivatives and Hedging (Topic 815). As such, the Company concluded the warrants did not meet the scope exception for determining whether the instruments required accounting as derivatives and should be classified in liabilities.
On December 31, 2013, the liability-classified warrants were valued at $11.8 million using a Binomial/Monte Carlo valuation model. The decrease in the fair value of the warrant liabilities of $1.2 million for the year ended December 31, 2013 was recorded as Other income, net in the Statements of Operations. In December 2014, the company recognized a gain of $195 thousand on the expiration of liability-classified warrants.
The following pricing assumptions were used in the Binomial/Monte Carlo valuation model at December 31, 2013:
December 31,
2013
Risk-free interest rate0.13%
Expected life in years0.94
Expected volatility80%
Expected dividend yield
In connection with its 2009 private placement, the Company issued warrants to purchase an aggregate of 2,910,954 shares of common stock (including 138,617 warrants issued to the placement agents) which were exercisable immediately. The warrants had an exercise price of $2.04 per share and a 5 year term. The fair value of the warrants was estimated at $4.2 million using a Black-Scholes model with the following assumptions: expected volatility of 105%, risk free interest rate of 2.41%, expected life of 5 years and no dividends. The fair value of the warrants was recorded in the equity section of the balance sheet. In October 2009, 136,986 of these warrants were exercised.

ZIOPHARM Oncology, Inc.
NOTES TO FINANCIAL STATEMENTS
9.Warrants (Continued)
During 2013 135,346 warrants were exercised for 112,808 shares of common stock. Of these warrants, all 135,346 were equity-classified; there were no liability-classified warrants exercised.
During 2014 4,004,907 warrants were exercised for 3,725,277 shares of common stock. Of these warrants, 2,249,062 were equity-classified and 1,755,845 were liability-classified warrants. Additionally, 12,329 equity-classified warrants and 6,479,231 liability-classified warrants expired without being exercised.
All remaining warrants have expired during the year ended December 31, 2014 and none are outstanding as of December 31, 2015.
10.Income Taxes
There is no provision for income taxes because the Company has incurred operating losses since inception. The reported amount of income tax expense for the years differs from the amount that would result from applying domestic federal statutory tax rates to pretax losses primarily because of the changes in the valuation allowance. Significant components of the Company’s deferred tax assets at December 31, 2015 and 2014 are as follows:
  December 31,
(in thousands) 2015 2014
Net operating loss carryforwards $96,215
 $79,050
Start-up and organizational costs 64,942
 38,562
Research and development credit carryforwards 29,564
 26,112
Stock compensation 1,997
 1,181
Capitalized acquisition costs 10,429
 11,376
Deferred revenue 2,695
 534
Depreciation 251
 208
Other 1,673
 1,547
  207,766
 158,570
Less valuation allowance (207,766) (158,570)
Effective tax rate $
 $
Deferred income taxes reflect the net tax effects of temporary differences between the carrying amount of assets and liabilities for financial reporting purposes and the amounts used for income tax purposes. At December 31, 2015, the Company has aggregate net operating loss carryforwards for federal tax purposes of approximately $251 million available to offset future federal taxable income to the extent permitted under the Internal Revenue Code, or IRC, expiring in varying amounts through 2034. Additionally, the Company has approximately $29 million of research and development credits at December 31, 2015, expiring in varying amounts through 2034, which may be available to reduce future taxes.
Under the IRC Section 382, certain substantial changes in the Company’s ownership may limit the amount of net operating loss carryforwards that can be utilized in any one year to offset future taxable income. The net operating loss carryforwards for the year ended December 31, 2015 includes approximately $10.2 million resulting from excess tax deductions from stock options. Pursuant to ASC 740, the deferred tax asset relating to excess tax benefits generated from exercises of stock options was not recognized for financial statement purposes.

ZIOPHARM Oncology, Inc.
NOTES TO FINANCIAL STATEMENTS
10.Income Taxes (Continued)
Section 382 of the IRC provides limits to which a corporation that has undergone a change in ownership (as defined) can utilize any net operating loss, or NOL, and general business tax credit carryforwards it may have. The Company commissioned an analysis to determine whether Section 382 could limit the use of its carryforwards in this manner. After completing the analysis, it was determined an ownership change had occurred in February 2007. As a result of this change, the Company’s NOL’s and general business tax credits from February 23, 2007 and prior would be completely limited under IRC Section 382. The deferred tax assets related to NOL’s and general business credits have been reduced by $11.2 million and $636 thousand, respectively, as a result of the change. The Company updated the IRC Section 382 analysis through December 31, 2014. It was determined a change of ownership occurred on February 28, 2011. The Company’s NOL’s were not further limited as a result of the change.
The Company has provided a valuation allowance for the full amount of these net deferred tax assets, since it is more likely than not that these future benefits will not be realized. However, these deferred tax assets may be available to offset future income tax liabilities and expenses. The valuation allowance increased by $49.2 million in 2015 primarily due to net operating loss carryforwards and the increase in research and development credits.
Income taxes using the federal statutory income tax rate differ from the Company’s effective tax rate primarily due to the change in the valuation allowance on deferred tax assets.
A reconciliation of income tax expense (benefit) at the statutory federal income tax rate and income taxes as reflected in the financial statements is as follows:
  Year Ended December 31,
(in thousands) 2015 2014 2013
Federal income tax at statutory rates 34 % 34 % 34 %
State income tax, net of federal tax benefit 5 % 2 % 4 %
Research and development credits 3 % 3 % 9 %
Stock compensation -1 % -4 % -2 %
Other 0 % -4 % 1 %
Increase in valuation allowance -41 % -31 % -46 %
Effective tax rate 0 % 0 % 0 %
The Company adopted ASC740, “Accounting for Uncertain Tax Positions” on January 1, 2007. ASC740 clarifies the accounting for uncertainty in income taxes recognized in an enterprise’s financial statements in accordance with FASB Statement No. 109, “Accounting for Income Taxes.” ASC 740 prescribes a recognition threshold and measurement of a tax position taken or expected to be taken in a tax return. The Company did not establish any

ZIOPHARM Oncology, Inc.
NOTES TO FINANCIAL STATEMENTS
10.Income Taxes (Continued)
additional reserves for uncertain tax liabilities upon adoption of ASC 740. A summary of the company’s adjustments to its uncertain tax positions in the years ended December 31, 2015, 2014, and 2013 are as follows:
  
(in thousands) 
Balance at December 31, 2012$275
Increase/Decrease for tax positions related to the current year
Increase/Decrease for tax positions related to prior years(37)
Decrease for settlements with applicable taxing authorities
Decrease for lapses of statute of limitations
  
Balance at December 31, 2013$238
Increase/Decrease for tax positions related to the current year
Increase/Decrease for tax positions related to prior years
Decrease for settlements with applicable taxing authorities
Decrease for lapses of statute of limitations
  
Balance at December 31, 2014$238
Increase/Decrease for tax positions related to the current year
Increase/Decrease for tax positions related to prior years
Decreases for settlements with applicable taxing authorities
Decrease for previous year’s lapses of statute of limitations(20)
Decrease for impact of §382 limitations(218)
Decrease for lapses of statute of limitations
  
Balance at December 31, 2015$
  
The Company has not recognized any interest and penalties in the statement of operations because of the Company’s net operating losses and tax credits that are available to be carried forward. When necessary, the Company will account for interest and penalties related to uncertain tax positions as part of its provision for federal and state income taxes. The Company does not expect the amounts of unrecognized benefits will change significantly within the next twelve months.
The Company is currently open to audit under the statute of limitations by the Internal Revenue Service and state jurisdictions for the years ended December 31, 1999 through 2015.
11.Preferred Stock and Stockholders’ Equity
On April 26, 2006, the date of the Company’s annual stockholders meeting that year, the shareholders approved the adoption of an Amended and Restated Certificate of Incorporation pursuant to which the Company has 280,000,000 shares of authorized capital stock, of which 250,000,000 shares are designated as common stock (par value $.001 per share), and 30,000,000 shares are designated as preferred stock (par value $.001 per share), which the Company refers to as the Preferred Stock.
Common Stock
On October 29, 2013, pursuant to an underwriting agreement between the Company and J. P. Morgan Securities LLC, as representative of the several underwriters named therein,2020, the Company completed the sale of an aggregate 16,445,000Transactions discussed in Note 3. Concurrent with entering into the TS Biotechnology Sale on January 1, 2020, the Company also entered into a subscription agreement with TS Biotechnology pursuant to which TS Biotechnology purchased 5,972,696 shares of the Company’sCompany's common stock at a price of $3.50 per share in a public offering. The total gross proceeds resulting from this public offering were approximately $57.6 million, before deducting selling commissions and expenses (see Note 2, Financings).for $35,000 on January 31, 2020.

ZIOPHARM Oncology, Inc.
NOTES TO FINANCIAL STATEMENTS
11.Preferred Stock and Stockholders’ Equity (Continued)
OnIn February 3, 2015,2020, the Company entered into an underwriting agreement with J.P. Morgan Securities LLC, as representative of the several underwriters named therein, relating to the issuance and sale of 10,000,000 shares of our common stock. The price to the public in the offering was $8.75 per share, and the underwritersFibrocell mutually agreed to purchase the shares from the Company pursuant to the underwriting agreement at a purchase price of $8.225 per share. Under the terms of the underwriting agreement, the Company also granted the underwriters an option, exercisable for 30 days, to purchase up to an additional 1,500,000 shares of common stock at a purchase price of $8.225 per share. The offering was made pursuant to the Company’s effective registration statement on Form S-3 (SEC File No. 333-201826) previously filed with the SEC, and a prospectus supplement thereunder. The underwriters purchased the 10,000,000 shares and the additional 1,500,000 shares on February 9 and 17, 2015, respectively. The net proceeds from the offering were approximately $94.3 million after deducting underwriting discounts and estimated offering expenses paid by the Company.
On January 13, 2015, the Company, together with Intrexon, entered into the MD Anderson License. Pursuant to the terms of the MD Anderson License, MD Anderson received consideration of 11,722,163 shares of the Company’s common stock (see Note 8, Commitments and Contingencies).
Preferred Stock
The Company’s Board of Directors are authorized to designate any series of Preferred Stock, to fix and determine the variations in relative rights, preferences, privileges and restrictions as between and among such series.
12.Stock Option Plan
terminate Fibrocell ECC 2. The Company adoptedis considering the 2003 Stock Option Plan, or the 2003 Plan, in 2003, and it was approved by the Company’s stockholdersimpact of this termination on December 21, 2004. Upon approval of the 2012 Equity Incentive Plan, no additional stock awards may be granted under the 2003 Plan.its 2020 financial results.
The Company adopted the 2012 Equity Incentive Plan, or the 2012 Plan, in May 2012, under which the Company initially reserved for the issuance of 4,000,000 shares of its common stock. The 2012 Plan was approved by the Company’s stockholders on June 20, 2012. On June 18, 2014, the date of the Company’s annual stockholders meeting, the Company’s stockholders approved an amendment to the 2012 Plan increasing the total shares reserved by 5,000,000 shares, for a total of 9,000,000 shares.
As of December 31, 2015, the Company had outstanding options issued to its employees to purchase up to 2,420,801 shares of the Company’s common stock, to its directors to purchase up to 927,500 shares of the Company’s common stock, as well as options to consultants in connection with services rendered to purchase up to 133,167 shares of the Company’s common stock.
Stock options to employees generally vest ratably over three years and have contractual terms of ten years. Stock options to directors generally vest ratably over one or three years and have contractual terms of ten years. Stock options are valued using the Black-Scholes option pricing model and compensation is recognized based on such fair value over the period of vesting on a straight-line basis. The Company has also reserved an aggregate of 26,364 additional shares for issuance under options granted outside of the 2003 Stock Option Plan.
Proceeds from the option exercises during the years ended December 31, 2015, 2014, and 2013 amounted to $4.6 million, $1.4 million and $956 thousand respectively. The intrinsic value of these options amounted to $23.8 million, $2.6 million and $1.4 million for years ended December 31, 2015, 2014 and 2013, respectively.

ZIOPHARM Oncology, Inc.
NOTES TO FINANCIAL STATEMENTS
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12.Stock Option Plan (Continued)
Transactions under the Plan for the years ending December 31, 2015, 2014, and 2013 were as follows:
(in thousands, except share and per share data) 
Number of
Shares
 
Weighted-
Average Exercise
Price
 
Weighted-
Average
Contractual
Term (Years)
 
Aggregate
Intrinsic Value
Outstanding, December 31, 2012 7,147,303
 $4.11
    
Granted 2,649,900
 3.28
    
Exercised (570,168) 1.68
    
Cancelled (2,479,732) 4.58
    
Outstanding, December 31, 2013 6,747,303
 3.81
    
Granted 1,099,300
 4.95
    
Exercised (613,138) 2.26
    
Cancelled (727,801) 4.54
    
Outstanding, December 31, 2014 6,505,664
 4.07
    
Granted 427,800
 10.47
    
Exercised (3,249,160) 3.95
    
Cancelled (202,835) 4.36
    
Outstanding, December 31, 2015 3,481,469
 $4.96
 6.98
 $12,601
Vested and unvested expected to vest at December 31, 2015 3,443,414
 $4.24
 5.84
 $12,463
Options exercisable, December 31, 2015 2,120,834
 $4.24
 5.84
 $8,622
Options exercisable, December 31, 2014 3,781,162
 $4.10
 5.80
 $4,130
Options available for future grant 2,768,230
      
At December 31, 2015, total unrecognized compensation costs related to non-vested stock options outstanding amounted to $5.3 million. The cost is expected to be recognized over a weighted-average period of 1.55 years.
Restricted Stock
In May, June and December 2015, the Company issued 1,000,000, 50,000 and 403,083 shares of restricted stock to its employees, respectively, which vest ratably in annual installments over three years, commencing on the first anniversary of the grant date. In September and December 2015, the Company issued 4,186 and 133,305 shares of restricted stock to its non-employee directors, which vest in their entirety at December 31, 2015 and on the one year anniversary of the grant date respectively. In December 2014, the Company issued 66,828 shares of restricted stock to its non-employee directors, which vest in their entirety on the one year anniversary of the grant date. In December 2013, the Company issued 75,272 shares of restricted stock to its non-employee directors, which vested in their entirety on the one year anniversary of the grant date.
In September and December 2015, the Company repurchased 7,669 and 16,709 shares at average prices of $11.57 and $8.31, respectively to cover payroll taxes. In January, February and December 2014, the Company repurchased 16,031, 14,600 and 81,702 shares at average prices of $4.37, $4.40 and $5.04 per share, respectively, to cover payroll taxes. In January, March, May and December 2013, the Company repurchased 52,018, 5,400, 2,623, and

ZIOPHARM Oncology, Inc.
NOTES TO FINANCIAL STATEMENTS
12.Stock Option Plan (Continued)
56,683 shares at average prices of $4.28, $4.50, $1.65 and $4.37 per share, respectively, to cover payroll taxes. A summary of the status of non-vested restricted stock as of December 31, 2015, 2014 and 2013 is as follows:
  Number of Shares 
Weighted-Average
Grant Date Fair Value
Non-vested, December 31, 2012 733,739
 $4.37
Granted 75,272
 4.34
Vested (292,399) 4.31
Cancelled (163,747) 4.42
Non-vested, December 31, 2013 352,865
 4.38
Granted 66,828
 5.07
Vested (253,835) 4.38
Cancelled (21,350) 4.41
Non-vested, December 31, 2014 144,508
 4.70
Granted 1,590,574
 9.01
Vested (148,694) 4.88
Cancelled 
 
Non-vested, December 31, 2015 1,586,388
 $9.00
As of December 31, 2015, there was $12.1 million of total unrecognized stock-based compensation expense related to non-vested restricted stock arrangements. The expense is expected to be recognized over a weighted-average period of 1.73 years.
13.Employee Benefit Plan
The Company sponsors a qualified 401(k) Retirement Plan under which employees are allowed to contribute certain percentages of their pay, up to the maximum allowed under Section 401(k) of the IIRC. The Company may make contributions to this plan at its discretion. The Company contributed approximately $47 thousand, $79 thousand, and $139 thousand to this plan during the years ended December 31, 2015, 2014, and 2013, respectively.

14.Selected Quarterly Information (Unaudited)
(in thousands, except per share amount)
Year Ended December 31, 2015 
First
Quarter
 
Second
Quarter
 
Third
Quarter
 
Fourth
Quarter
Revenue $272
 $272
 $1,869
 $1,919
Total operating expenses 78,499
 14,497
 20,035
 11,401
Loss from operations (78,227) (14,225) (18,166) (9,482)
Change in fair value of warrants 
 
 
 
Net (loss) (78,231) (14,211) (18,170) (9,476)
Loss per share, basic and diluted $(0.69) $(0.11) $(0.14) $(0.07)
Year Ended December 31, 2014 
First
Quarter
 
Second
Quarter
 
Third
Quarter
 
Fourth
Quarter
Revenue $200
 $200
 $633
 $340
Total operating expenses 9,984
 11,377
 12,575
 10,936
Loss from operations (9,784) (11,177) (11,942) (10,596)
Change in fair value of warrants 82
 5,600
 5,847
 194
Net (loss) (9,711) (5,576) (6,093) (10,401)
Loss per share, basic and diluted $(0.10) $(0.06) $(0.06) $(0.09)


F-95