Adverum Biotechnologies, Inc.
Annual Report 2015

Plain-text annual report

UNITED STATESSECURITIES AND EXCHANGE COMMISSIONWASHINGTON, DC 20549 FORM 10-K xANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934For the fiscal year ended December 31, 2015or¨TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934For the transition period from to Commission File Number: 001-36579 Avalanche Biotechnologies, Inc.(Exact name of registrant as specified in its charter) Delaware 20-5258327(State or other jurisdiction ofincorporation or organization) (IRS EmployerIdentification No.)1035 O’Brien Drive, Suite AMenlo Park, California 94025(650) 272-6269(Address, including zip code, and telephone number, including area code, of registrant’s principal executive offices) Securities registered pursuant to Section 12(b) of the Act: Title of Each Class Name of Each Exchange on Which RegisteredCommon Stock, par value $0.0001 per share Nasdaq Global MarketSecurities registered pursuant to Section 12(g) of the Act: None Indicate by check mark if the registrant is a well-known seasoned issuer, as defined in Rule 405 of the Securities Act. Yes ¨ No xIndicate by check mark if the registrant is not required to file reports pursuant to Section 13 or 15(d) of the Act. Yes ¨ No xIndicate by check mark whether the registrant (1) has filed all reports required to be filed by Section 13 or 15(d) of the Securities Exchange Act of 1934 during the preceding12 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 postedpursuant to Rule 405 of Regulation S-T during the preceding 12 months (or for such shorter period that the registrant was required to submit and post such files): Yes x No ¨Indicate by check mark if disclosure of delinquent filers pursuant to Item 405 of Regulation S-K is not contained herein, and will not be contained, to the best of the registrant’sknowledge, 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. xIndicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer, or a smaller reporting company. See the definitions of “largeaccelerated filer,” “accelerated filer” and “smaller reporting company” in Rule 12b-2 of the Exchange Act. (Check one): Large accelerated filer¨Accelerated filerx Non-accelerated filer¨ (Do not check if a smaller reporting company)Smaller reporting company¨Indicate by check mark whether the registrant is a shell company (as defined in Rule 12b-2 of the Act). Yes ¨ No xAs of June 30, 2015, 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 of the registrant was approximately $328.5 million, based on the closing price of the registrant’s common stock on the NASDAQ Global Market on June 30, 2015 of $16.24per share. Shares of the registrant’s common stock held by each officer and director and each person known to the registrant to own 10% or more of the outstanding common stock ofthe registrant have been excluded in that such persons may be deemed affiliates. This determination of affiliate status is not a determination for other purposes.As of February 29, 2016, the registrant had 26,860,056 shares of common stock, par value $0.0001 par value, outstanding.DOCUMENTS INCORPORATED BY REFERENCEPortions of the definitive proxy statement (the Proxy Statement) for the 2016 Annual Meeting of Stockholders of the registrant are incorporated by reference into Part III of thisAnnual Report on Form 10-K. The Proxy Statement will be filed with the Securities and Exchange Commission within 120 days of the registrant’s fiscal year ended December 31,2015.  TABLE OF CONTENTS PagePART I Item 1 Business 1Item 1A Risk Factors 19Item 1B Unresolved Staff Comments 56Item 2 Properties 56Item 3 Legal Proceedings 56Item 4 Mine Safety Disclosures 57 PART II Item 5 Market for Registrant’s Common Equity, Related Stockholder Matters and Issuer Purchases of Equity Securities 58Item 6 Selected Financial Data 61Item 7 Management’s Discussion and Analysis of Financial Condition and Results of Operations 63Item 7A Quantitative and Qualitative Disclosures About Market Risk 78Item 8 Financial Statements and Supplementary Data 78Item 9 Changes in and Disagreements With Accountants on Accounting and Financial Disclosure 78Item 9A Controls and Procedures 78Item 9B Other Information 79 PART III Item 10 Directors, Executive Officers and Corporate Governance 80Item 11 Executive Compensation 80Item 12 Security Ownership of Certain Beneficial Owners and Management and Related Stockholder Matters 80Item 13 Certain Relationships and Related Transactions, and Director Independence 80Item 14 Principal Accountant Fees and Services 80 PART IV Item 15 Exhibits, Financial Statement Schedules 81 Signatures 82 In this report, unless otherwise stated or the context otherwise indicates, references to “Avalanche,” “Avalanche Biotechnologies,” “the Company,” “we,”“us,” “our” and similar references refer to Avalanche Biotechnologies, Inc., a Delaware corporation.i CAUTIONARY NOTE REGARDING FORWARD-LOOKING STATEMENTSThis Annual Report on Form 10-K contains forward-looking statements that involve risks and uncertainties. All statements other than statements of historicalfacts contained in this Annual Report on Form 10-K are forward-looking statements. In some cases, you can identify forward-looking statements byterminology such as “may,” “could,” “will,” “would,” “should,” “expect,” “plan,” “anticipate,” “believe,” “estimate,” “intend,” “predict,” “seek,”“contemplate,” “potential” or “continue” or the negative of these terms or other comparable terminology. These forward-looking statements include, but arenot limited to, statements about: ·the initiation, progress, timing, costs and results of preclinical studies and any clinical trials for our product candidates; ·our ability to advance our viral vector manufacturing and delivery capabilities; ·the timing or likelihood of regulatory filings and approvals; ·our plans to explore potential applications of our gene therapy platform in other indications in ophthalmology; ·our expectations regarding the clinical effectiveness of our product candidates; ·our commercialization, marketing and manufacturing capabilities and strategy; ·the pricing and reimbursement of our product candidates, if approved; ·our expectation regarding the potential market size for anti-vascular endothelial growth factor and wet age-related macular degenerationtherapies; ·our intellectual property position; ·the potential benefits of strategic collaborations and our ability to enter into strategic arrangements; ·developments and projections relating to our competitors and our industry; ·our expectations regarding the time during which we will be an “emerging growth company” under the Jumpstart Our Business Startups Act of2012; ·our estimates regarding expenses, future revenue, capital requirements and needs for additional financing; ·our expectations regarding the structure, timing and completion of our proposed acquisition of Annapurna Therapeutics SAS; ·our expectations regarding the capitalization, resources and ownership structure of the combined company resulting from our proposedtransaction; ·our expectations regarding the sufficiency of the combined company’s resources to fund the advancement of any development program or thecompletion of any clinical trial; ·the nature, strategy and focus of the combined company; ·the safety, efficacy and projected development timeline and commercial potential of any product candidates; ·the executive officer and board structure of the combined company; and ·our expectations regarding voting by the Company’s stockholders in connection with matters relating to the proposed transaction.These statements relate to future events or to our future financial performance and involve known and unknown risks, uncertainties and other factors that maycause our actual results, performance or achievements to be materially different from any future results, performance or achievements expressed or implied bythese forward-looking statements. Factors that may cause actual results to differ materially from current expectations include, among other things, those listedunder “Risk Factors” and elsewhere in this Annual Report on Form 10-K.Any forward-looking statement in this Annual Report on Form 10-K reflects our current views with respect to future events and is subject to these and otherrisks, uncertainties and assumptions relating to our operations, results of operations, industry and future growth. Given these uncertainties, you should notplace undue reliance on these forward-looking statements. These forward-looking statements speak only as of the date of this Annual Report on Form 10-K.Except as required by law, we assume no obligation to update or revise these forward-looking statements for any reason, even if new information becomesavailable in the future.ii This Annual Report on Form 10-K contains estimates, projections and other information concerning our industry, our business and the markets for certaindrugs, including data regarding the estimated size of those markets, their projected growth rates and the incidence of certain medical conditions. Informationthat is based on estimates, forecasts, projections or similar methodologies is inherently subject to uncertainties, and actual events or circumstances may differmaterially from events and circumstances reflected in this information. Unless otherwise expressly stated, we obtained this industry, business, market andother data from reports, research surveys, studies and similar data prepared by third parties, industry, medical and general publications, government data andsimilar sources. In some cases, we do not expressly refer to the sources from which this data is derived. In that regard, when we refer to one or more sources ofthis type of data in any paragraph, you should assume that other data of this type appearing in the same paragraph is derived from the same sources, unlessotherwise expressly stated or the context otherwise requires. iii PART 1.Item 1. BusinessOverviewWe are a gene therapy company committed to discovering and developing novel medicines that can offer potentially life-changing therapeutic benefit topatients suffering from chronic or debilitating disease. We have leveraged our next-generation gene therapy platform to create a pipeline of productcandidates. Our product candidates are designed to provide durable efficacy by inducing sustained expression of a therapeutic protein.We are targeting diseases with unmet medical need, including ophthalmic diseases such as wet age-related macular degeneration (AMD), as well as raregenetic diseases. We believe that there are several important benefits to focusing on the development of rare genetic diseases including the following: ·well-known disease pathways which we believe are particularly amenable to gene therapy, especially in conditions that are caused by a defectin expression of a single gene; ·gene therapy is believed to offer a versatile protein delivery system with persistent expression; ·local delivery of the therapeutic protein; and ·significant market demand for therapies that can offer long-term clinical benefit with potentially a one-time administration.For ophthalmic diseases, such as wet AMD, there are further benefits including the following: ·reduced risk of harmful immune responses and systemic side effects due to localized delivery in a self-contained organ; and ·well-defined and objective clinical endpoints such as the ability to read an eye chart.To date, our primary focus has been the development of AVA-101 for the treatment of wet age-related macular degeneration (wet AMD). We generated humanproof-of-concept data for AVA-101 in a Phase 1 trial with eight wet AMD subjects conducted at Lions Eye Institute (LEI) in Australia, of whom six wererandomized to treatment with AVA-101 and two to standard-of-care therapy in the form of ranibizumab injections on an as-needed basis per protocol. Six ofthese subjects were available for evaluation at 36 months, and of these six subjects, four were treated with AVA-101. In June 2015, we announced the 36-month follow-up data on the six subjects, which confirmed the safety profile of the drug previously reported at 12 months.Additionally, we conducted a Phase 2a trial for AVA-101 at LEI with 32 additional wet AMD subjects, for which we announced top-line results in June 2015.The primary endpoint of the Phase 2a study was based on ophthalmic and systemic safety, and secondary endpoints included retinal thickness (which can bea sign of reoccurrence of fluid in the retina), visual acuity and the need for anti-vascular endothelial growth factor (VEGF) therapy in the form of rescueinjections with ranibizumab. The Phase 2a clinical study met its 12-month primary endpoint, demonstrating that AVA-101 was well tolerated with afavorable safety profile in subjects with wet AMD. No serious adverse events related to AVA-101 were observed. With respect to the secondary endpoints ofthe Phase 2a study overall, we did not observe evidence of a complete and/or durable anti-VEGF response in the majority of subjects treated with AVA-101 asadministered in the Phase 2a study. We decided not to move forward with the Phase 2b clinical trial for AVA-101 with the dose and administration procedurethat we had planned to initiate in the second half of 2015. Instead, we are conducting additional preclinical studies to inform further development of our wetAMD program.1 Regeneron had a time-limited right of first negotiation for certain rights to AVA-101 as part of our collaboration. In September 2015, we initiated, by noticeand delivery of AVA-101 clinical data to Regeneron, the time period for Regeneron to elect whether to exercise its right of first negotiation. On November 2,2015, Regeneron notified the Company that it was not exercising this right of first negotiation.In addition to AVA-101, we are working on other product candidates for the treatment of ophthalmic diseases, including: ·AVA-201. We are developing AVA-201 as a next-generation product candidate for the prevention of wet AMD. AVA-201 produces the sameanti-VEGF protein as AVA-101 using a proprietary, customized delivery mechanism, or vector. As part of the preclinical re-evaluation of ourwet AMD program, direct comparisons of AVA-101 and -201 are being carried out, including the potential for the use of AVA-201 for directtreatment of active as well as prevention of wet AMD. ·AVA-311. As part of our research collaboration with Regeneron, AVA-311 is being evaluated in preclinical studies for the treatment of juvenileX-linked retinoschisis (XLRS), a rare genetic disease of the retina with no approved therapy. There are approximately 10,000 boys and youngmen in the United States suffering from the disease. XLRS is caused by mutation of the RS1 gene and results in splitting of retinal layers andcorresponding loss of vision. In preclinical studies in animals to date, AVA-311 has delayed the progression of XLRS and improved vision bydelivering functional copies of the RS1 gene in retinal cells of mice. ·AVA-322 and AVA-323. We are developing AVA-322 and AVA-323 for the treatment of color vision deficiency (CVD), commonly known asred-green color blindness. CVD is a highly prevalent genetic disorder that affects approximately 8 percent of males and 0.5 percent of females,with some variation by race, and is most commonly caused by genetic mutations in the opsin genes that impact the ability of the cone cells torespond to various wavelengths of light in the retina.Proposed Transaction with Annapurna Therapeutics SASOn February 1, 2016, we announced that we entered into a definitive agreement with Annapurna Therapeutics SAS (Annapurna), a privately-heldbiopharmaceutical company focused on advancing gene therapy for unmet medical needs, providing for the acquisition by us of all outstanding shares ofAnnapurna in exchange for approximately 13.1 million newly issued shares of our common stock and the conversion of all outstanding options or otherrights to purchase capital stock of Annapurna (the Annapurna Options) into options relating to approximately 4.7 million shares of our common stock. Thenumber of newly issued shares and the number of shares that the Annapurna Options relate to are subject to adjustment based on the exercise of theAnnapurna Options by their holders prior to the closing of the proposed transaction. Completion of the proposed transaction is subject to satisfaction orwaiver of customary closing conditions, including approval by our stockholders of the issuance of our common stock to Annapurna’s shareholders.If the proposed transaction with Annapurna is consummated, our pipeline will consist of our existing ophthalmic programs and Annapurna’s four genetherapy based programs, which are focused on Alpha1-antitrypsin (A1AT) deficiency, cardiomyopathy associated with Friedrich’s ataxia, hereditaryangioedema and severe allergies. In addition, if the proposed transaction is consummated, Amber Salzman, Ph.D., the president and chief executive officer ofAnnapurna, will become our president and chief operating officer, and Carlo Russo, M.D., the chief medical officer and head of development at Annapurna,will serve as our executive vice president and chief medical officer. Furthermore, upon consummation of the transaction, our board of directors will expand tonine directors, comprised of our current directors and four new directors initially designated by Annapurna.2 StrategyOur goal is to transform the lives of patients through the discovery and development of novel medicines that can potentially offer life-changing therapeuticbenefit to patients suffering from chronic or debilitating disease. The key elements of our strategy to achieve this goal are to: ·Continue to build a diverse gene therapy pipeline targeting ophthalmic and rare genetic diseases. If our proposed transaction withAnnapurna is completed, our pipeline will consist of our existing ophthalmic programs and Annapurna’s four gene therapy based programs,which are focused on Alpha1-antitrypsin (A1AT) deficiency, cardiomyopathy associated with Friedrich’s ataxia, hereditary angioedema andsevere allergies. ·Continue to identify and target diseases using our next-generation discovery platform. We are focusing on creating a diverse pipelinetargeting diseases that can be better treated by the sustained delivery of a therapeutic protein. We plan to continue to invest in our platform andemploy directed evolution to create and manufacture next-generation vectors with higher efficiency and greater specificity that can potentiallytreat previously untreatable diseases. Our platform will be designed to create second-generation vectors for use in our existing ophthalmicprograms and, if the transaction with Annapurna is completed, Annapurna’s four gene therapy based programs. We plan to continue to identifyadditional appropriate target indications by leveraging our internal expertise and relationships with thought leaders. ·Continue to advance wet AMD and CVD programs and work with Regeneron on collaboration projects. We are conducting additionalpreclinical studies on AVA-101 and AVA-201 to inform further development of our wet AMD program. We will also continue to develop AVA-322 and AVA-323 for the treatment of color vision deficiency. As part of our research collaboration with Regeneron, we will continue toevaluate AVA-311 in on-going preclinical studies for the treatment of juvenile X-linked retinoschisis. ·Build a balanced portfolio of proprietary and partnered programs. We plan to develop and commercialize multiple product candidatesindependently. For targets outside our core area of interest or where a partner can contribute specific expertise, we intend to evaluate additionalcollaborations with strategic partners.Gene Therapy BackgroundGene therapy is a powerful treatment modality to address disease biology in a targeted and efficient way. Using gene therapy, physicians can introduce or re-introduce genes that encode a therapeutic protein. Instead of providing proteins or other therapies externally and dosing them over a long period, genetherapy offers the possibility of dosing once or a very limited number of times to achieve a long-term, durable benefit. Once a patient’s cells haveincorporated the therapeutic gene, the cells are able to continue to produce the therapeutic protein for years or, potentially, the rest of the patient’s life.Similar to existing classes of protein or biologic therapies such as monoclonal antibodies and drug-antibody conjugates, gene therapy has taken a number ofyears to evolve from a research tool into a viable and compelling treatment modality. There have been several recent advances in gene therapy, including thefollowing: ·Clinical data. Positive data from gene therapy have been reported in a variety of indications, including adrenoleukodystrophy, beta-thalassemia, chronic lymphoid leukemia, hemophilia, HIV and Parkinson’s disease, as well as several ophthalmic diseases including LCA2,Choroideremia and Leber’s Hereditary Optic Neuropathy.. ·Increased investment by biopharmaceutical companies. The modality of gene therapy has been further validated by growing interest andinvestments by biopharmaceutical companies. Large, global biopharmaceutical companies, such as BioMarin Pharmaceutical Inc., Biogen IdecInc., Celgene Corporation, GlaxoSmithKline plc, Novartis, Sanofi, Regeneron and Shire Pharmaceuticals Group Plc, have increased theirinvestment in the gene therapy field. Additionally, pure-play gene therapy companies, such as Applied Genetic Technologies Corporation,bluebird bio, Spark Therapeutics, Inc., Sangamo BioSciences, Inc., uniQure N.V. and Voyager Therapeutics, have attracted recent investment inthis growing field. ·Regulatory clarity. Although the FDA has not yet approved a gene therapy product, it has provided guidance for the development of genetherapy products. For example, the FDA has established the Office of Cellular, Tissue and Gene Therapies within its Center for BiologicsEvaluation and Research (CBER) to consolidate the review of gene therapy products, and the Cellular, Tissue and Gene Therapies AdvisoryCommittee to advise CBER on its reviews. ·First product approval. In 2012, the European Medicines Agency (EMA) granted approval for Glybera® (developed by uniQure) for theorphan disease lipoprotein lipase deficiency. Glybera is the first gene therapy product approved in the Western world.3 Our Novel AAV Vector Discovery and Optimization SystemOur next-generation discovery platform is based on vectors derived from adeno-associated virus (AAV), which is a small, non-pathogenic virus, with the DNAencoding the AAV viral genes removed and replaced with a therapeutic gene to treat a disease. The resulting vector is used to deliver a functional gene into adesired cell population, which when expressed, will result in continuous protein production. We believe AAV vectors offer numerous advantages over otherviral and non-viral vector technologies used for gene therapy. These advantages, highlighted below, have the potential to allow AAVs to be safe, to beapplicable for a variety of indications and to exhibit long-term efficacy. ·Non-pathogenic. AAV vectors are not known to cause any disease in humans. ·Low immunogenicity. AAV vectors elicit only a mild immune response, if any, in humans, particularly when used in the eye. ·Non-replicating. Once inside the host cell, AAV vectors do not replicate, thereby preventing the spread to unwanted tissues. ·Non-integrating. AAV vectors do not readily integrate into the host cell’s genome, mitigating the risk of potential safety concerns. ·Ability to transduce non-dividing cells. AAV vectors are able to transduce non-dividing cells and this is a significant advantage as manyretinal cells cease to divide early in a person’s life. ·Long-term expression. Once incorporated into the host cell, AAV vectors can continue to drive expression of a therapeutic protein for years.AAV is naturally occurring and has become a leading vector used in gene therapy. According to the Journal of Gene Medicine, AAV has been used in over130 clinical trials as of January 2015 demonstrating the increasing acceptance of gene therapy as a safe and effective method for delivering therapeutic genesof interest. The most frequently studied variant of AAV is AAV2, which can preferentially infect a number of cell types, including those found in the retina.As effective as existing AAV vectors are in gene therapy, we believe there is an opportunity to advance vector capabilities beyond those currently available.Naturally occurring AAV variants have evolved with particular characteristics, some of which pose limitations to their use in gene therapy.In order to create next-generation vectors, we use a multi-step process known as directed evolution. These vectors are designed to penetrate a specific celltype within the retina with high efficiency and transduce cells to express a therapeutic protein over a long duration.Our directed evolution technology uses a library of genes coding for viral proteins found in a number of naturally occurring AAVs. We modify these genes inthe laboratory to derive novel combinations of genes that produce vectors exhibiting different properties and capabilities. Once we have created an initialpool of millions of different AAVs, each with distinct genetic and chemical composition, we screen the AAVs in the pool for novel properties, e.g., specifictransduction of a particular cell type of interest or the capability to evade pre-existing neutralizing immune response. After identifying a smaller pool ofoptimized vectors from this screening process, we repeat the steps of diversity generation and screening until we have identified a select number ofengineered AAVs with the characteristics we seek. 4 Our Product CandidatesWe have developed a pipeline of proprietary and partnered programs across both major markets and rare diseases in the field of ophthalmology.AVA-101 and AVA-201 for Treatment of Wet AMDAMD is a progressive disease affecting the retinal cells in the macula, the region of the eye responsible for central vision. Disease progression results in thedeath of retinal cells and the gradual loss of vision. As people age, the likelihood of disease progression increases and the resulting condition is referred to asAMD. Approximately 10% of total cases of AMD represent an advanced form of the disease called wet AMD, in which blood vessels begin to invade the cellularspace between layers of cells in the retina. These new blood vessels are often leaky, which results in fluid and blood in the retina and causes vision loss. WetAMD is a leading cause of vision loss with a prevalence of approximately three million people worldwide. The incidence of new cases of wet AMD in theUnited States is approximately 150,000 to 200,000 a year and this number is expected to grow significantly based on the aging of the population.While the underlying molecular causes of AMD are not completely known, VEGF is known to play a central role in the growth of new blood vessels in wetAMD. The standard-of-care therapies for wet AMD include Lucentis® and EYLEA®, as well as off-label use of Avastin®. Lucentis®, a recombinanthumanized monoclonal antibody fragment that binds to and inhibits VEGF proteins in the eye, was approved in the United States in 2006 and in Europe in2007. In 2014, Lucentis® achieved worldwide sales of approximately $4.2 billion. EYLEA®, a recombinant fusion protein containing portions of the humanVEGF receptor that binds to VEGF, was approved in the United States in 2011. EYLEA® has exhibited strong adoption in the market due to its moreconvenient dosing regimen compared to Lucentis and in 2015, EYLEA® achieved worldwide sales of approximately $4.1 billion. Avastin® is a recombinanthuman monoclonal antibody that binds to VEGF and is approved as an anti-cancer agent. Avastin® is widely prescribed off-label in ophthalmic diseasessuch as wet AMD and makes up approximately 60% of the wet AMD market by volume, but is insignificant in terms of revenue. To date, our primary focus has been the development of AVA-101 for the treatment of wet age-related macular degeneration (wet AMD). We generated humanproof-of-concept data for AVA-101 in a Phase I trial with eight wet AMD subjects conducted at Lions Eye Institute (LEI) in Australia, of whom six wererandomized to treatment with AVA-101 and two to standard-of-care therapy in the form of ranibizumab injections on an as-needed basis per protocol. Six ofthese subjects were available for evaluation at 36 months, and of these six subjects, four were treated with AVA-101. In June 2015, we announced the 36-month follow-up data on the six subjects, which confirmed the safety profile of the drug previously reported at 12 months.Additionally, we conducted a Phase 2a trial for AVA-101 at LEI with 32 additional wet AMD subjects, for which we announced top-line results in June 2015.The primary endpoint of the Phase 2a study was based on ophthalmic and systemic safety, and secondary endpoints included retinal thickness (which can bea sign of reoccurrence of fluid in the retina), visual acuity and the need for anti- VEGF therapy in the form of rescue injections with ranibizumab. The Phase2a clinical study met its 12-month primary endpoint, demonstrating that AVA-101 was well tolerated with a favorable safety profile in subjects with wetAMD. No serious adverse events related to AVA-101 were observed. With respect to the secondary endpoints of the Phase 2a study, overall, we did notobserve evidence of a complete and/or durable anti-VEGF response in the majority of subjects treated with AVA-101 as administered in the Phase 2a study.We decided not to move forward with the Phase 2b clinical trial for AVA-101 with the dose and administration procedure that we had planned to initiate inthe second half of 2015. Instead, we are conducting additional preclinical studies to inform further development of our wet AMD program.In addition to AVA-101, we are developing AVA-201 as a next-generation product candidate for the prevention of wet AMD. AVA-201 produces the sameanti-VEGF protein as AVA-101 using a proprietary, customized delivery mechanism, or vector. As part of our preclinical re-evaluation of our wet AMDprogram, direct comparisons of AVA-101 and -201 are being carried out, including the potential for the use of AVA-201 for direct treatment of active as wellas prevention of wet AMD. AVA-322 and AVA-323 for the Treatment of Color Vision Deficiency Color vision deficiency (CVD) is commonly known as red-green color blindness. CVD is a highly prevalent genetic disorder that affects approximately 8percent of males and 0.5 percent of females, with some variation by race, and is most commonly caused by genetic mutations in the opsin genes that impactthe ability of the cone cells to respond to various wavelengths of light in the retina.5 We are developing AVA-322 and AVA-323 for the treatment of CVD. AVA-322 and AVA-323 each comprises an optimized AAV vector that intravitreallydelivers the L-Opsin or M-Opsin gene in the eye for the treatment of protan or deutan defects.AVA-311 for the Treatment of Juvenile X-linked RetinoschisisXLRS is an inherited retinal disease that occurs almost exclusively in males. It is caused by mutations in the RS1 gene located on the X chromosome. TheRS1 protein binds to the surface of the photoreceptors and biopolar cells in the retina and is crucial in maintaining the tissue’s integrity. Disruption in theproduction of the RS1 protein may cause schisis, or splitting, of the retinal layers or leakage in the blood vessels of the retina. These complications lead tosevere vision impairment or blindness and often manifest early in childhood. We believe that approximately 10,000 boys and young men suffer from XLRS.As part of our Collaboration Agreement with Regeneron, AVA-311 is being developed for the potential treatment of XLRS, a genetic disease affecting boysand young men with no approved therapy. AVA-311 is comprised of an optimized AAV vector that intravitreally delivers the RS1 gene in the eye topotentially achieve a functional cure for patients. Under our Collaboration Agreement with Regeneron, if it exercises its option, Regeneron will beresponsible for all preclinical studies and clinical trials for AVA-311, and will retain worldwide commercialization rights. We have the option to share up to35% of the development costs and profits from this product candidate.ManufacturingWe produce our AAVs using a proprietary manufacturing process based on insect cells and baculoviruses, a common family of viruses found in invertebrates.Our process is based on the Baculovirus Expression System (BVES), which has been used in a number of FDA- and EMA-approved products. This approach iswell suited for the production of large quantities of AAVs, as it takes advantage of efficiency of viral infection coupled with the high density and scalabilityof insect cells grown in serum-free suspension cultures. Compared to the mammalian cell-based approaches commonly used in the field, our manufacturingprocess is designed to produce higher yields of vectors in a cost-effective manner.Our BVES manufacturing process is presented in the figure below. 1)The process begins with two DNA constructs, one encoding the therapeutic protein and the other encoding AAV helper components encodingthe AAV capsid and for replication of vectors. 2)Each DNA construct is inserted into the genome of a baculorvirus to create two types of recombinant baculoviruses. 3)The two baculoviruses are used to transduce insect cells, which in turn produce large amounts of AAV vectors containing the therapeutic geneof interest. 4)The transduced cells are then harvested and treated with a lysis buffer solution to burst the insect cells and release the AAV vectors. 5)AAV vectors are then purified to remove unwanted debris. 6)Following purification, the vectors are formulated in a physiological solution and placed in vials. 7)The resulting drug product is ready for use as a therapeutic treatment for the targeted disease.6 BVES Manufacturing ProcessOur AAV manufacturing method is industrialized, highly scalable and ready for adaptation for commercial stage. We believe our process provides thefollowing advantages over competing systems: ·Industrial-scale biologics production. Our BVES system can produce commercial quantities by incorporating scalable, well-establishedprocess steps used throughout the industry for biologic products. ·Safety advantages. Our BVES system does not use mammalian cell cultures or tumorigenic cell lines, and the DNA sequences used to allowAAV vector production are inactive in mammalian cells, which lowers the risk of off-target expression from our products. ·High yield and low cost. Our BVES system produces a high number of particles per cell, producing many thousand doses per manufacturingrun. The yields are up to one hundred times greater than those obtained using conventional AAV production systems. This lowers the unit costof goods, allowing us to meet global demand for large markets, such as wet AMD. ·High purity. Our BVES system produces a highly pure drug substance, which reduces the presence of unwanted contaminants in the finalproduct. ·Precedent regulatory framework. Our BVES system is used for several FDA- and EMA-approved vaccines and gene therapy productsincluding FluBlok®, Cervarix® and Glybera.We have entered into a manufacturing technology license agreement pursuant to which we and Lonza Houston, Inc. are assessing certain technologypotentially useful for the manufacture of our products. The license agreement provides that the parties will conduct activities to evaluate such technologyand that we may elect to engage Lonza to manufacture our products. We also granted to Lonza certain licenses to practice the manufacturing technology forproducts other than those being developed by us, our affiliates or sublicensees.CompetitionThe biopharmaceutical industry is characterized by intense and dynamic competition to develop new technologies and proprietary therapies. Any productcandidates that we successfully develop and commercialize will have to compete with existing therapies and new therapies that may become available in thefuture. While we believe that our directed evolution platform, differentiated product candidates and scientific expertise in the field of gene therapy provideus with competitive advantages, we face potential competition from various sources, including larger and better-funded pharmaceutical, specialtypharmaceutical and biotechnology companies, as well as from academic institutions, governmental agencies and public and private research institutions.In the last 12 months the market saw advancement in private gene therapy companies as well as a surge in initial public offerings of gene therapy focusedcompanies with competitive platforms and programs. These companies include MeiraGTx, Dimension7 Therapeutics, Inc., Voyager Therapeutics, Audentes Therapeutics, AveXis, REGENXBIO Biosciences, 4D Molecular Therapeutics, Applied GeneticTechnologies Corporation and uniQure.Our wet AMD program candidates will compete with a variety of therapies currently marketed and in development for wet AMD using therapeutic modalitiessuch as biologics, small molecules and gene therapy. Existing anti-VEGF therapies, Lucentis®, EYLEA® and Avastin®, are well-established therapies andare widely accepted by physicians, patients and third-party payers as the standard of care for the treatment of wet AMD.There are several other companies with marketed products or products in development for the treatment of wet AMD, including Allergan, IconicTherapeutics, Inc., Novartis, Ocular Therapeutix, Inc., Ophthotech Corporation, Hoffmann-La Roche Ltd., Neurotech Pharmaceuticals, Inc., RegeneronPharmaceuticals, Inc., Santen Pharmaceuticals Co., Ltd., Valeant Pharmaceuticals North America LLC, REGENXBIO Biosciences LLC, Ohr Pharmaceuticals,Inc., Applied Genetic Technologies Corporation, and Mesoblast Limited.Our other preclinical product candidates that are being developed for the treatment of prevalent or rare ophthalmic diseases, such as the prevention of wetAMD, color vision deficiency and XLRS, for which there are no approved therapies. However, there are multiple companies developing gene therapies forophthalmic diseases, including Applied Genetic Technologies Coporation, Asklepios BioPharmaceutical Inc., Eos Neuroscience, Inc., GenSight Biologics,Genzyme Corporation, Hemera Biosciences, Inc., RetroSense Therapeutics, LLC, Spark Therapeutics, Inc., Oxford Biomedica plc, Sanofi-Aventis S.A.,NightStaRx Limited and 4D Molecular Therapeutics, LLC.Many of our competitors, either alone or with their strategic partners, have substantially greater financial, technical and human resources than we do andsignificantly greater experience in the discovery and development of product candidates, obtaining FDA and other regulatory approvals of treatments andcommercializing those treatments. Accordingly, our competitors may be more successful than us in obtaining approval for treatments and achievingwidespread market acceptance. Our competitors’ treatments may be more effective, or more effectively marketed and sold, than any treatment we maycommercialize and may render our treatments obsolete or non-competitive before we can recover the expenses of developing and commercializing any of ourtreatments.Mergers and acquisitions in the biotechnology and pharmaceutical industries may result in even more resources being concentrated among a smaller numberof our competitors. These competitors also compete with us in recruiting and retaining qualified scientific and management personnel and establishingclinical study sites and subject registration for clinical studies, as well as in acquiring technologies complementary to, or necessary for, our programs. Smalleror early-stage companies may also prove to be significant competitors, particularly through collaborative arrangements with large and established companies.We anticipate that we will face intense and increasing competition as new drugs enter the market and advanced technologies become available. We expectany treatments that we develop and commercialize to compete on the basis of, among other things, efficacy, safety, convenience of administration anddelivery, price, the level of generic competition and the availability of reimbursement from government and other third-party payers.Our commercial opportunity could be reduced or eliminated if our competitors develop and commercialize products that are safer, more effective, have feweror less severe side effects, are more convenient or are less expensive than any products that we may develop. Our competitors also may obtain FDA or otherregulatory approval for their products more rapidly than we may obtain approval for ours, which could result in our competitors establishing a strong marketposition before we are able to enter the market. In addition, we expect that our therapeutic products, if approved, will be priced at a significant premium overcompetitive generic products and our ability to compete may be affected in many cases by insurers or other third-party payers seeking to encourage the use ofgeneric products.License and Collaboration AgreementsRegeneron Research Collaboration and License AgreementIn May 2014, we entered into the Collaboration Agreement with Regeneron to research, develop and commercialize certain gene therapy products based onour proprietary viral vectors that express transgenes encoding molecules that modulate up to a total of eight specified targets, and encoding certainendogenous molecules known to bind to and modulate such targets. Such products, including AVA-311, are referred to collectively as “Products.” Pursuantto the Collaboration Agreement, we and Regeneron will conduct a research program to identify potential Products for a specified time period. Regeneron willbear all costs of performing research under the Collaboration Agreement. Regeneron has a right to substitute a certain number of such targets and may,subject to a payment to us, expand the collaboration beyond the four initially designated targets to include up to four additional targets not currently beingresearched or developed by Avalanche, and endogenous molecules known to bind to and modulate such additional targets, in the research program.Regeneron has an option, exercisable with respect to all Products containing transgenes expressing molecules that8 modulate one of the specified targets, to obtain an exclusive, worldwide license to research, develop, use, import, export, make, manufacture andcommercialize such Products for the treatment, prevention or diagnosis of human disease or other medical disorders. Regeneron may exercise this optionprior to the expiration of the term of the research program, within a certain time period after the acceptance for filing with the FDA of the IND for suchProducts. Regeneron must pay us an option fee each time it exercises an option.Regeneron has the right to file an IND with the FDA for Products prior to exercising its option. If Regeneron exercises its option for specified Products,Regeneron will be primarily responsible for developing, obtaining and maintaining regulatory approval for, and commercializing such Products.We have a right to co-fund costs of developing, manufacturing and commercializing Products containing transgenes encoding molecules capable ofmodulating a target with respect to which Regeneron has exercised its option, subject to certain exceptions. We may exercise this co-funding right up to twotimes. If we exercise such right, we may elect to bear up to 35% of all development costs incurred for such Products. For any co-funded Products, Regeneron’spayment obligations extend until the Product is no longer sold in the applicable territory. For those Products for which we exercise this option, either partymay opt out of sharing development costs for all Products containing transgenes encoding molecules capable of modulating a protein target, in which casethe other party may continue to develop and commercialize such Products, subject to the payment of a royalty to the other party ranging from low-singledigit to low double digit royalties. While Regeneron will record all revenue from sales of the co-funded Products, Regeneron will share in the net profits andlosses of sales of any Products for which we exercised our co-funding right, with each party receiving a share of profits and bearing its share of losses inaccordance with the share of development costs borne by each party for such Product, provided that neither party exercises its opt-out right for such Products.Under the Collaboration Agreement, Regeneron made an initial payment of $8.0 million dollars for collaboration research costs, a one-time option fee and aone-time license grant fee.In addition to the initial payment, Regeneron may make the following payments to us: ·reimbursement for additional collaboration research costs; ·up to $80.0 million in development and regulatory milestones for product candidates directed toward each of the eight therapeutic candidates,for a combined total of up to $640.0 million in potential milestone payments for product candidates directed toward all eight therapeutictargets subject to the Collaboration Agreement; and ·tiered, low- to mid-single digit royalties on annual net sales, subject to certain adjustments.For each Product, Regeneron’s payment obligations extend until the last to occur of the following: (i) the discontinuation of development of the Product or(ii) once a Product is approved by the FDA, the later of (x) the duration of patent coverage for the Product or (y) ten years after first commercial sale of theProduct in a particular territory.The Collaboration Agreement continues until the expiration of the option period for all Products, which occurs on May 1, 2017 if Regeneron has notexercised any options for a Product prior to such date. If Regeneron exercises an option for a Product prior to such date, the Collaboration Agreementcontinues in effect with respect to that Product on a country-by-country basis until the expiration of all payment obligations under the CollaborationAgreement. The Collaboration Agreement may also be terminated (i) by Regeneron at will, either in its entirety or on a target by target basis, upon 30 days’prior written notice to us, (ii) by either party, upon written notice in connection with a material breach remaining uncured 60 days after initial written notice,(iii) by us, if Regeneron challenges the patent rights licensed by us under the Collaboration Agreement or (iv) by either party, for insolvency of the otherparty. Regeneron had a time-limited right of first negotiation for certain rights to AVA-101 as part of our collaboration, In September 2015, we initiated, bynotice and delivery of AVA-101 clinical data to Regeneron, the time period for Regeneron to elect whether to exercise its right of first negotiation. OnNovember 2, 2015, Regeneron notified the Company that it was not exercising this right of first negotiation.University of California License AgreementIn May 2010, we entered into a license agreement with the Regents of University of California (Regents) as amended in September 2013. Under the licenseagreement, the Regents have granted to us an exclusive (even as to the Regents) license, with the right to grant sublicenses, under the Regents’ undividedinterest in patent rights covering a method of using recombinant gene delivery vectors for treating or preventing diseases of the eye, to develop, make, havemade, use offer for sale, import, export and sell products covered by such patent rights in all fields of use in the United States. The licensed patent rights arejointly owned by the Regents and Chiron Corporation, but our license extends only to the Regents’ interest in such patent rights.9 Under the license agreement, we are required to diligently proceed with the development, manufacture and sale of licensed products, which includesobligations to meet certain development-stage milestones within specified periods of time, and to market the resulting licensed products in sufficientquantity to meet market demand. We have the right and option to extend the date by which we must meet any milestone by six-months up to two times bypaying an extension fee for each such extension.We have paid the Regents a license fee of $100,000. We are also obligated to make milestone payments totaling up to $900,000 upon reaching certain stagesof development of the licensed products for one indication, and totaling up to $500,000 for each subsequent indication for which licensed products aredeveloped, for up to a maximum of two additional indications. We must pay the Regents a low single-digit royalty on net sales of the licensed products by usor our sublicensees, subject to a minimum annual royalty payment of $50,000 beginning in the calendar year after the first commercial sale of a licensedproduct, until the patent rights upon which such royalties are based expire or are held invalid, which is currently expected to occur in 2020, subject to anypotential patent term extensions. We are obligated to reimburse the Regents for expenses associated with the prosecution and maintenance of the licensedpatents. Finally, we are obligated to pay the Regents a mid-teen percentage of non-royalty licensing revenue we receive from sublicensees.Our license agreement with the Regents continues until the expiration of our royalty obligations. We may terminate this agreement without cause at any timeupon 30 days’ prior written notice to the Regents. The Regents may terminate this agreement for a breach by us that remains uncured for 60 days, if webecome insolvent, if we directly or through a third party file a claim that a licensed patent right is invalid or unenforceable or if we fail to meet or extend thedate for meeting certain diligence milestones.Intellectual PropertyOverviewWe strive to protect and enhance the proprietary technology, inventions and improvements that are commercially important to the development of ourbusiness, including seeking, maintaining and defending patent rights, whether developed internally or licensed from third parties. We also rely on tradesecrets relating to our proprietary technology platform and on know-how, continuing technological innovation and in-licensing opportunities to develop,strengthen and maintain our proprietary position in the field of gene therapy that may be important for the development of our business. We additionally mayrely on regulatory protection afforded through data exclusivity, market exclusivity and patent term extensions where available.Our commercial success may depend in part on our ability to obtain and maintain patent and other proprietary protection for commercially importanttechnology, inventions and know-how related to our business; defend and enforce our patents; preserve the confidentiality of our trade secrets; and operatewithout infringing the valid enforceable patents and proprietary rights of third parties. Our ability to stop third parties from making, using, selling, offering tosell or importing our products may depend on the extent to which we have rights under valid and enforceable licenses, patents or trade secrets that coverthese activities. In some cases, these rights may need to be enforced by third party licensors. With respect to both licensed and company-owned intellectualproperty, we cannot be sure that patents will be granted with respect to any of our pending patent applications or with respect to any patent applications filedby us in the future, nor can we be sure that any of our existing patents or any patents that may be granted to us in the future will be commercially useful inprotecting our commercial products and methods of manufacturing the same.We have more than 60 patent applications pending in the United States and foreign jurisdictions. At least 38 patent applications have been filed in theUnited States and foreign jurisdictions by or on behalf of universities which have granted us exclusive license rights to the technology. To date, 12 patentshave issued to us or to our licensors that are active. Our policy is to file patent applications to protect technology, inventions and improvements toinventions that are commercially important to the development of our business. We seek United States and international patent protection for a variety oftechnologies, including: research tools and methods, methods for transferring genetic material into cells, AAV-based biological products, methods fortreating diseases of interest and methods for manufacturing our AAV-based products. We also intend to seek patent protection or rely upon trade secret rightsto protect other technologies that may be used to discover and validate targets and that may be used to identify and develop novel biological products. Weseek protection, in part, through confidentiality and proprietary information agreements. We are a party to various other license agreements that give us rightsto use specific technologies in our research and development.Company Owned IPWe own a family of patent applications that are directed to AAV-based compositions and methods for treating or preventing eye diseases associated withneovascularization. The applications in this family relate to the AVA-101 composition, various unit dosages, dosing regimens and routes of administration.Four applications in this family are pending in the United States, and corresponding patent applications are pending in Australia, Brazil, Canada, China,Europe, Israel, India, Japan, South Korea, Mexico, New Zealand, Russia, Singapore, Thailand, Taiwan and South Africa. Patents that grant from this patentfamily are generally expected to expire in 2033, subject to possible patent term extensions.10 We are also pursuing innovative ways to regulate the expression of transgenes in tissues. To that end, we have, in collaboration with Stanford University,filed a U.S. patent application that is directed to methods for regulating gene expression in a subject. Any patents that grant from this application areexpected to expire in 2033, subject to possible patent term extensions.Licensed IPWe have obtained exclusive licenses to patents directed to both compositions of matter and methods of use.For example, we have exclusively licensed the rights of the Regents to a U.S. patent directed to methods of treating ocular disease that relate to methods ofusing AVA-101. This patent is co-owned by the Regents and by Chiron Corporation, and will expire in 2020, unless a term extension is obtained for suchpatent. There are no foreign patents in this patent family.We have exclusively licensed several families of patents and applications that relate to variant rAAV virions having desirable characteristics, such asincreased infectivity, as well as novel methods to screen for such variants.One patent family that we have exclusively licensed includes granted patents in Australia, Germany, France, the United Kingdom and Spain; three pendingU.S. patent applications; and a pending patent application in Canada. The patents are projected to expire in 2024, subject to possible patent term extensions,as are any patents that granted from the pending applications.Another patent family that we have exclusively licensed includes a granted U.S. patent that is projected to expire in 2031 and a pending U.S. patentapplication which, if granted, is also projected to expire in 2031, in both cases subject to possible patent term extensions.A third patent family that we have exclusively licensed includes three pending U.S. patent applications and pending corresponding applications in Australia,Brazil, Canada, China, Europe, Hong Kong, Israel, India, Japan, South Korea, Mexico, Russia, Singapore and South Africa. Patents that grant from this patentfamily are generally expected to expire in 2032, subject to possible patent term extensions.We have also nonexclusively licensed rights to a patent family that includes an issued European patent and related Chinese and U.S. patent applicationsdirected to methods of manufacturing. The European patent is expected to expire in 2027, as are any patents that may grant from the related patentapplications.Trademark ProtectionWe have registered trademarks in connection with our biological products. We may pursue additional registrations for future products in markets of interest.In addition to the above, we have established expertise and development capabilities focused in the areas of preclinical research and development,manufacturing and manufacturing process scale-up, quality control, quality assurance, regulatory affairs and clinical trial design and implementation. Webelieve that our focus and expertise will help us develop products based on our proprietary intellectual property.Trade Secret ProtectionFinally, we may rely, in some circumstances, on trade secrets to protect our technology. We seek to protect our proprietary technology and processes, in part,by entering into confidentiality agreements with our employees, consultants, scientific advisors and contractors. We also seek to preserve the integrity andconfidentiality of our data and trade secrets by maintaining physical security of our premises and physical and electronic security of our informationtechnology systems. While we have confidence in these individuals, organizations and systems, agreements or security measures may be breached, and wemay not have adequate remedies for any breach. In addition, our trade secrets may otherwise become known or be independently discovered by competitors.To the extent that our consultants, contractors or collaborators use intellectual property owned by others in their work for us, disputes may arise as to therights in related or resulting know-how and inventions.Government RegulationThe FDA and comparable regulatory authorities in state and local jurisdictions and in other countries impose substantial and burdensome requirements uponcompanies involved in the clinical development, manufacture, marketing and distribution of our product candidates. These agencies and other federal, stateand local entities regulate research and development activities and the testing, manufacture, quality control, safety, effectiveness, labeling, storage, recordkeeping, approval, advertising and promotion, distribution, post-approval monitoring and reporting, sampling, and export and import of our productcandidates.11 In the United States, the FDA regulates drug and biologic products under the Federal Food, Drug, and Cosmetic Act (FFDCA), and the FDA implementsregulations and other laws, including, in the case of biologics, the Public Health Service Act. If we fail to comply with applicable FDA or other requirementsat any time during the product development process, clinical testing, the approval process or after approval, we may become subject to administrative orjudicial sanctions. These sanctions could include the FDA’s refusal to approve pending applications, license suspension or revocation, withdrawal of anapproval, warning letters, product recalls, product seizures, total or partial suspension of production or distribution, injunctions, fines, civil penalties orcriminal prosecution. Any FDA enforcement action could have a material adverse effect on us. Our product candidates may be subject to regulation by theFDA as biologics. Biologics require the submission of a Biologics License Application (BLA) and approval by the FDA before being marketed in the UnitedStates. Similarly, FDA approval is required before any new unapproved drug or dosage form, including a new use of a previously approved drug, can bemarketed in the United States.Within the FDA, CBER regulates gene therapy products. Within CBER, the review of gene therapy and related products is consolidated in the Office ofCellular, Tissue and Gene Therapies, and FDA has established the Cellular, Tissue and Gene Therapies Advisory Committee to advise CBER on its reviews.CBER works closely with the U.S. National Institutes of Health (NIH) and the NIH Office of Biotechnology Activities’ Recombinant DNA AdvisoryCommittee (RAC), which makes recommendations to the NIH on gene therapy issues and engages in a public discussion of scientific, safety, ethical andsocietal issues related to proposed and ongoing gene therapy protocols. The FDA and the NIH have published guidance documents with respect to thedevelopment and submission of gene therapy protocols. The FDA also has published guidance documents related to, among other things, gene therapyproducts in general, their preclinical assessment, observing subjects involved in gene therapy studies for delayed adverse events, viral shedding,environmental assessments, potency testing, and chemistry, manufacturing and control information in gene therapy INDs. FDA guidance documents providethe agency's current thinking about a particular subject, but are not legally binding.The process required by the FDA before our product candidates may be marketed in the United States generally involves: ·completion of extensive preclinical laboratory tests, preclinical animal studies and formulation studies all performed in accordance with theFDA’s current Good Laboratory Practice, or GLP, regulations; ·submission to the FDA of an IND, which must become effective before human clinical trials in the United States may begin; ·approval by an independent institutional review board, or IRB, at each clinical trial site before each trial may be initiated; ·performance of adequate and well-controlled human clinical trials according to the FDA’s regulations commonly referred to as good clinicalpractice, and any additional requirements for the protection of human research subjects and their health information, to establish the purity,potency, safety and efficacy of the drug candidate for each proposed indication; ·prior to commercialization satisfactory completion of an FDA inspection of the manufacturing facility or facilities at which the drug isproduced to assess compliance with current Good Manufacturing Practice, or cGMP, regulations according to the FDA’s regulations commonlyreferred to as good clinical practice, and any additional requirements for the protection of human research subjects and their healthinformation; ·submission to the FDA of a BLA for marketing approval that includes substantial evidence of safety, purity and potency from results ofnonclinical testing and clinical trials; ·potential FDA audit of the nonclinical and clinical trial sites that generated the data in support of the BLA; and ·payment of user fees and FDA review and approval, or licensure, of the BLA prior to any commercial marketing, sale or shipment of theproduct.The preclinical and clinical testing and approval process requires substantial time, effort and financial resources, and we cannot be certain that any approvalsfor our product candidates will be granted on a timely basis, if at all.Before testing any biologic product candidate, including a gene therapy product, in humans, the product candidate enters the preclinical testing stage.Preclinical tests include laboratory evaluation of product chemistry, formulation, stability and toxicity, as well as animal studies to assess the characteristicsand potential safety and efficacy of the product. The conduct of the preclinical tests must comply with federal regulations and requirements, including GLPs.Where a gene therapy study is conducted at, or sponsored by, institutions receiving NIH funding for recombinant DNA research, prior to the submission of anIND to the FDA, a protocol and related documentation are submitted to, and the study is registered with, the NIH Office of Biotechnology Activities, or OBA,pursuant to the NIH Guidelines for Research Involving Recombinant DNA Molecules, or NIH Guidelines. Compliance with the NIH Guidelines is mandatoryfor investigators at institutions receiving NIH funds for research involving recombinant DNA. However, many companies and other institutions not otherwisesubject to the NIH12 Guidelines voluntarily follow them. The NIH is responsible for convening the RAC, a federal advisory committee that discusses protocols that raise novel orparticularly important scientific, safety or ethical considerations at one of its quarterly public meetings. The OBA will notify the FDA of the RAC's decisionregarding the necessity for full public review of a gene therapy protocol. RAC proceedings and reports are posted to the OBA website and may be accessed bythe public.The results of preclinical tests, together with manufacturing information, analytical data, any available clinical data or literature and a proposedclinical trial protocol, are submitted as part of an IND to the FDA. Some preclinical testing may continue even after the IND is submitted. In addition, if agene therapy trial is conducted at, or sponsored by, institutions receiving National Institutes of Health, or NIH, funding for recombinant DNA research, aprotocol and related documentation must be submitted to, and the study registered with, the NIH Office of Biotechnology Activities, or OBA, pursuant to theNIH Guidelines for Research Involving Recombinant DNA Molecules, prior to the submission of an IND to the FDA. In addition, many companies and otherinstitutions not subject to the NIH Guidelines voluntarily follow them. The NIH convenes the Recombinant DNA Advisory Committee, or RAC, a federaladvisory committee, to discuss selected protocols and informed consent documents that raise novel or particularly important scientific, safety or ethicalconsiderations at one of its quarterly public meetings. The OBA notifies the FDA of the RAC’s decision regarding the necessity for full public review of agene therapy protocol. The IND automatically becomes effective 30 days after receipt by the FDA, unless the FDA, within the 30-day time period, raisesconcerns or questions relating to one or more proposed clinical trials and places the clinical trial on a clinical hold, including concerns that human researchsubjects will be exposed to unreasonable health risks. In such a case, the IND sponsor and the FDA must resolve any outstanding concerns before the clinicaltrial can begin. With gene therapy protocols, if the FDA allows the IND to proceed, but the RAC decides that full public review of the protocol is warranted,the FDA will request at the completion of its IND review that sponsors delay initiation of the protocol until after completion of the RAC review process. TheFDA also may impose clinical holds on a biologic product candidate at any time before or during clinical trials due to safety concerns or non-compliance. Ifthe FDA imposes a clinical hold, trials may not recommence without FDA authorization and then only under terms authorized by FDA.Clinical trials involve the administration of the investigational product candidate to human subjects under the supervision of qualified investigators,generally physicians not employed by or under the study sponsor’s control. Clinical trials are conducted under protocols detailing, among other things, theobjectives of the clinical trial, dosing procedures, subject selection and exclusion criteria, the parameters to be used in monitoring subject safety, includingstopping rules that assure a clinical trial will be stopped if certain adverse events should occur, and the effectiveness criteria to be used. Each protocol mustbe submitted to the FDA as part of the IND. An IRB for each medical center proposing to conduct a clinical trial must also review and approve a plan for anyclinical trial before it can begin at that center and the IRB must monitor the clinical trial until it is completed. Clinical testing also must satisfy extensiveGood Clinical Practice (GCP) requirements, including the requirements for informed consent from all subjects. FDA usually recommends that sponsorsobserve all surviving subjects who receive treatment using gene therapies in clinical trials for potential gene therapy-related delayed adverse events for aminimum 15-year period, including a minimum of five years of annual examinations followed by 10 years of annual queries, either in person or byquestionnaire. FDA does not require the long- term tracking to be complete prior to its review of the BLA.All clinical research performed in the United States in support of a BLA must be authorized in advance by the FDA under the IND regulations and proceduresdescribed above. However, a sponsor who wishes to conduct a clinical trial outside the United States may, but need not, obtain FDA authorization to conductthe clinical trial under an IND. If a foreign clinical trial is not conducted under an IND, the sponsor may submit data from the clinical trial to the FDA insupport of a BLA so long as the clinical trial is conducted in compliance with an international guideline for the ethical conduct of clinical research known asthe Declaration of Helsinki and/or the laws and regulations of the country or countries in which the clinical trial is performed, whichever provides the greaterprotection to the participants in the clinical trial.Clinical TrialsFor purposes of BLA submission and approval, clinical trials are typically conducted in three or four sequential phases, which may overlap or be combined. ·Phase 1: Clinical trials are initially conducted in a limited population of subjects to test the product candidate for safety, dose tolerance,absorption, metabolism, distribution and excretion in healthy humans or, on occasion, in patients with severe problems or life-threateningdiseases to gain an early indication of its effectiveness. ·Phase 2: Clinical trials are generally conducted in a limited subject population to evaluate dosage tolerance and appropriate dosage, identifypossible adverse effects and safety risks, and evaluate preliminarily the efficacy of the product candidate for specific targeted indications insubjects with the disease or condition under study.13 ·Phase 3: Clinical trials are typically conducted when Phase 2 clinical trials demonstrate that a dose range of the product candidate is effectiveand has an acceptable safety profile. Phase 3 clinical trials are commonly referred to as “pivotal” studies, which typically denotes a study whichpresents the data that the FDA or other relevant regulatory agency will use to determine whether or not to approve a product candidate. Phase 3clinical trials are generally undertaken with large numbers of subjects, such as groups of several hundred to several thousand, to furtherevaluate dosage, to provide substantial evidence of clinical efficacy and to further test for safety in an expanded and diverse subject populationat multiple, geographically-dispersed clinical trial sites. ·Phase 4: In some cases, the FDA may condition approval of a BLA for a product candidate on the sponsor’s agreement to conduct additionalclinical trials after the product’s approval. In other cases, a sponsor may voluntarily conduct additional clinical trials post approval to gainmore information about the product. Such post approval trials are typically referred to as Phase 4 clinical trials.During all phases of clinical development, regulatory agencies require extensive monitoring and auditing of all clinical activities, clinical data, and clinicaltrial investigators. Annual progress reports detailing the results of the clinical trials must be submitted to the FDA. Written IND safety reports must bepromptly submitted to the FDA, the NIH and the investigators for serious and unexpected adverse events, any findings from other studies, tests in laboratoryanimals or in vitro testing that suggest a significant risk for human subjects, or any clinically important increase in the rate of a serious suspected adversereaction over that listed in the protocol or investigator brochure. The sponsor must submit an IND safety report within 15 calendar days after the sponsordetermines that theinformation qualifies for reporting. The sponsor also must notify the FDA of any unexpected fatal or life-threatening suspected adverse reaction within sevencalendar days after the sponsor's initial receipt of the information. Phase 1, Phase 2 and Phase 3 clinical trials may not be completed successfully within anyspecified period, if at all. The FDA or the sponsor or its data safety monitoring board may suspend a clinical trial at any time on various grounds, including afinding that the research subjects or patients are being exposed to an unacceptable health risk. Similarly, an IRB can suspend or terminate approval of aclinical trial at its institution if the clinical trial is not being conducted in accordance with the IRB's requirements or if the biological product has beenassociated with unexpected serious harm to patients.In addition to the regulations discussed above, there are a number of additional standards that apply to clinical trials involving the use of gene therapy. TheFDA has issued various guidance documents regarding gene therapies, which outline additional factors that the FDA will consider at each of the above stagesof development and relate to, among other things: the proper preclinical assessment of gene therapies; the chemistry, manufacturing and control informationthat should be included in an IND application; the proper design of tests to measure product potency in support of an IND or BLA application; and measuresto observe delayed adverse effects in subjects who have been exposed to investigational gene therapies when the risk of such effects is high. Further, the FDAusually recommends that sponsors observe subjects for potential gene therapy-related delayed adverse events for a 15-year period, including a minimum offive years of annual examinations followed by 10 years of annual queries, either in person or by questionnaire. The NIH and the FDA have a publiclyaccessible database, the Genetic Modification Clinical Research Information System, which includes information on gene therapy trials and serves as anelectronic tool to facilitate the reporting and analysis of adverse events on these trials.These phases of testing may not be completed successfully within any specified period, if at all. Concurrent with clinical trials, companies usually completeadditional animal trials and must also develop additional information about the chemistry and physical characteristics of the product candidate and finalize aprocess for manufacturing the product candidate in commercial quantities in accordance with cGMP requirements. The manufacturing process must becapable of consistently producing quality batches of the product candidate and, among other things, the manufacturer must develop methods for testing theidentity, strength, quality and purity of the final product. Additionally, appropriate packaging must be selected and tested and stability studies must beconducted to demonstrate that the product candidate does not undergo unacceptable deterioration over its shelf life.Biologics License ApplicationsThe results of preclinical studies and of the clinical trials, together with other detailed information, including extensive manufacturing information andinformation on the composition of the product, are submitted to the FDA in the form of a BLA requesting approval to market the product for one or morespecified indications. The submission of a BLA must be accompanied by a substantial user fee unless a waiver applies, and is subject to a sixty day reviewperiod to determine if the application is substantially complete to permit substantive review. Under the Prescription Drug User Fee Act (PDUFA), the FDA has a goal of responding to BLAs within ten months of the filing date for standard review andwithin six months for priority review, but FDA review may not occur in a timely basis. The review process and the PDUFA goal date may be extended bythree months if the FDA requests or the BLA sponsor otherwise provides additional information or clarification regarding information already provided in thesubmission within the last three months before the PDUFA goal date.14 The FDA may refer the application to an advisory committee for review, evaluation and recommendation as to whether the application should be approved.The FDA is not bound by the recommendation of an advisory committee, but it generally follows such recommendations. The FDA may deny approval of aBLA if the applicable statutory and regulatory criteria are not satisfied, which may require additional clinical data or an additional Phase 3 clinical trial. Evenif such data are submitted, the FDA may ultimately decide that the BLA does not satisfy the criteria for approval. Data from clinical trials are not alwaysconclusive and the FDA may interpret data differently than we interpret data. Moreover, even if a product receives approval, the approval may besignificantly limited to specific disease and dosages or the indications for use may otherwise be limited or subject to Risk Evaluation and MitigationStrategies, which could restrict the commercial value of the product. Once the FDA approves a BLA, or supplement thereto, the FDA may withdraw theapproval if ongoing regulatory requirements are not met or if safety problems are identified after the product reaches the market. Where a withdrawal may notbe appropriate, the FDA still may seize existing inventory of such product or require a recall of any biologic or drug already on the market. In addition, theFDA may require testing, including Phase 4 clinical trials and surveillance programs to monitor the effect of approved biologics which have beencommercialized. The FDA has the authority to prevent or limit further marketing of a biologic or drug based on the results of these post-marketing programs.Biologics may be marketed only for the FDA approved indications and in accordance with the provisions of the approved labeling. Further, if there are anymodifications to the product, including changes in indications, labeling, or manufacturing processes or facilities, the applicant may be required to submit andobtain FDA approval of a new BLA or BLA supplement, which may require us to develop additional data or conduct additional preclinical studies andclinical trials.Before approving an application, the FDA will inspect the facility or the facilities at which the finished biologic or drug product, and sometimes, for drugproducts, the active drug ingredient, is manufactured, and will not approve the product unless cGMP compliance is satisfactory. The FDA may also inspectthe sites at which the clinical trials were conducted to assess their compliance, and will not approve the product unless compliance with IND studyrequirements and GCP requirements is satisfactory.The testing and approval processes require substantial time, effort and financial resources, and each may take several years to complete. The FDA may notgrant approval on a timely basis, or at all. Even if we believe a clinical trial has demonstrated safety and efficacy of one of our product candidates for thetreatment of a disease, the results may not be satisfactory to the FDA. Preclinical and clinical data may be interpreted by the FDA in different ways, whichcould delay, limit or prevent regulatory approval. We may encounter difficulties or unanticipated costs in our efforts to secure necessary governmentalapprovals which could delay or preclude us from marketing drugs. The FDA may limit the indications for use or place other conditions on any approvals thatcould restrict the commercial application of the biologics or drugs. After approval, certain changes to the approved product, such as adding new indications,manufacturing changes, or additional labeling claims are subject to further FDA review and approval. Depending on the nature of the change proposed, aBLA supplement must be filed and approved before the change may be implemented. For many proposed post-approval changes to a BLA, the FDA has up to180 days to review the application. As with new BLAs, the review process is often significantly extended by the FDA requests for additional information orclarification.Other Regulatory RequirementsAny biologics manufactured or distributed by us or our collaborators pursuant to FDA approvals would be subject to continuing regulation by the FDA,including recordkeeping requirements and reporting of adverse experiences associated with the product. Biologic and drug manufacturers and theirsubcontractors are required to register their establishments with the FDA and certain state agencies, and are subject to periodic unannounced inspections bythe FDA and certain state agencies for compliance with ongoing regulatory requirements, including cGMPs, which impose certain procedural anddocumentation requirements upon us and our third party manufacturers. Failure to comply with the statutory and regulatory requirements can subject amanufacturer to possible legal or regulatory action, such as warning letters, suspension of manufacturing, seizure of product, injunctive action or possiblecivil penalties. We cannot be certain that we or our present or future third-party manufacturers or suppliers will be able to comply with the cGMP regulationsand other ongoing FDA regulatory requirements. If we or our present or future third-party manufacturers or suppliers are not able to comply with theserequirements, the FDA may halt our clinical trials, require us to recall a product from distribution or withdraw approval of the BLA for that biologic.The FDA closely regulates the post-approval marketing and promotion of biologics and drugs, including standards and regulations for direct-to-consumeradvertising, off-label promotion, industry-sponsored scientific and educational activities and promotional activities involving the internet. A company canmake only those claims relating to safety and efficacy that are approved by the FDA. Failure to comply with these requirements can result in adversepublicity, warning letters, corrective advertising and potential civil and criminal penalties. Physicians may prescribe legally available drugs for uses that arenot described in the product’s labeling and that differ from those tested by us and approved by the FDA. Such off-label uses are common across medicalspecialties. FDA sanctions could include refusal to approve pending applications, withdrawal of an approval, clinical hold, warning or untitled letters,product recalls, product seizures, total or partial suspension of production or distribution, injunctions, fines, refusals of government contracts, mandatedcorrective advertising or communications with doctors, debarment, restitution, disgorgement of profits, or civil or criminal penalties.15 Any agency or judicial enforcement action could have a material adverse effect on us. Physicians may believe that such off-label uses are the best treatmentfor many patients in varied circumstances. The FDA does not regulate the behavior of physicians in their choice of treatments. The FDA does, however,impose stringent restrictions on manufacturers’ communications regarding off-label use.Other Healthcare Laws and RegulationsIf we obtain regulatory approval for any of our product candidates, we may also be subject to healthcare regulation and enforcement by the federalgovernment and the states and foreign governments in which we conduct our business. These laws may impact, among other things, our proposed sales,marketing and education programs. In addition, we may be subject to patient privacy regulation by both the federal government and the states in which weconduct our business. The laws that may affect our ability to operate include: ·the federal Anti-Kickback Statute, which prohibits, among other things, persons from knowingly and willfully soliciting, receiving, offering orpaying remuneration, directly or indirectly, in exchange for or to induce either the referral of an individual for, or the purchase, order orrecommendation of, any good or service for which payment may be made under federal healthcare programs such as the Medicare andMedicaid programs; ·federal false claims laws which prohibit, among other things, individuals or entities from knowingly presenting, or causing to be presented,claims for payment from Medicare, Medicaid, or other third-party payers that are false or fraudulent; ·federal criminal laws that prohibit executing a scheme to defraud any healthcare benefit program or making false statements relating tohealthcare matters; ·the federal Physician Payment Sunshine Act, which requires certain manufacturers of drugs, devices, biologics and medical supplies to reportannually to the Centers for Medicare & Medicaid Services information related to payments and other transfers of value to physicians, otherhealthcare providers, and teaching hospitals, and ownership and investment interests held by physicians and other healthcare providers andtheir immediate family members; ·HIPAA, as amended by HITECH, which governs the conduct of certain electronic healthcare transactions and protects the security and privacyof protected health information; and ·state and foreign law equivalents of each of the above federal laws, such as anti-kickback and false claims laws which may apply to items orservices reimbursed by any third-party payer, including commercial insurers; state laws that require pharmaceutical companies to comply withthe 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 and other potential referral sources; state laws that require drugmanufacturers to report information related to payments and other transfers of value to physicians and other healthcare providers or marketingexpenditures; and state laws governing the privacy and security of health information in certain circumstances, many of which differ from eachother in significant ways and may not have the same effect, thus complicating compliance efforts.If our operations are found to be in violation of any of the laws described above or any other governmental laws and regulations that apply to us, we may besubject to penalties, including civil and criminal penalties, damages, fines, the curtailment or restructuring of our operations, the exclusion from participationin federal and state healthcare programs and imprisonment, any of which could adversely affect our ability to operate our business and impact our financialresults.Coverage and ReimbursementSignificant uncertainty exists as to the coverage and reimbursement status of any products for which we obtain regulatory approval. In the United States andmarkets in other countries, sales of any products for which we receive regulatory approval for commercial sale will depend in part on the availability ofcoverage and reimbursement from third-party payers. Third-party payers include government authorities, managed care providers, private health insurers andother organizations. The process for determining whether a payer will provide coverage for a drug product may be separate from the process for setting thereimbursement rate that the payer will pay for the drug product. Third-party payers may limit coverage to specific drug products on an approved list, orformulary, which might not include all of the FDA-approved drugs for a particular indication. Moreover, a payer’s decision to provide coverage for a drugproduct does not imply that an adequate reimbursement rate will be approved. Adequate third-party reimbursement may not be available to enable us tomaintain price levels sufficient to realize an appropriate return on our investment in product development.Third-party payers are increasingly challenging the price and examining the medical necessity and cost-effectiveness of medical products and services, inaddition to their safety and efficacy. In order to obtain coverage and reimbursement for any product that might be approved for sale, we may need to conductexpensive pharmacoeconomic studies in order to demonstrate the medical necessity and cost-effectiveness of our products, in addition to the costs requiredto obtain regulatory approvals. Our product16 candidates may not be considered medically necessary or cost-effective. If third-party payers do not consider a product to be cost-effective compared to otheravailable therapies, they may not cover the product after approval as a benefit under their plans or, if they do, the level of payment may not be sufficient toallow a company to sell its products at a profit. The United States government, state legislatures and foreign governments have shown significant interest inimplementing cost containment programs to limit the growth of government-paid health care costs, including price controls, restrictions on reimbursementand requirements for substitution of generic products for branded prescription drugs. By way of example, the Patient Protection and Affordable Care Act, asamended by the Health Care and Education Reconciliation Act, collectively, the Affordable Care Act, contains provisions that may reduce the profitability ofdrug products, including, for example, increased the minimum rebates owed by manufacturers under the Medicaid Drug Rebate Program, extended the rebateprogram to individuals enrolled in Medicaid managed care plans, addressed a new methodology by which rebates owed by manufacturers under the MedicaidDrug Rebate Program are calculated for drugs that are inhaled, infused, instilled, implanted or injected, and annual fees based on pharmaceutical companies’share of sales to federal health care programs. Adoption of government controls and measures, and tightening of restrictive policies in jurisdictions withexisting controls and measures, could limit payments for pharmaceuticals.The marketability of any products for which we receive regulatory approval for commercial sale may suffer if the government and third-party payers fail toprovide adequate coverage and reimbursement. In addition, emphasis on cost containment measures in the United States and other countries has increasedand we expect will continue to increase the pressure on pharmaceutical pricing. Coverage policies and third-party reimbursement rates may change at anytime. Even if favorable coverage and reimbursement status is attained for one or more products for which we receive regulatory approval, less favorablecoverage policies and reimbursement rates may be implemented in the future.International RegulationIn addition to regulations in the United States, we or our collaborators will be subject to a variety of foreign regulations governing clinical trials andcommercial sales and distribution of our future drugs. Whether or not we obtain FDA approval for a drug, we or our collaborators must obtain approval of adrug by the comparable regulatory authorities of foreign countries before commencing clinical trials or marketing of the drug in those countries. Theapproval process varies from country to country, and the time may be longer or shorter than that required for FDA approval. The requirements governing theconduct of clinical trials, product licensing, pricing and reimbursement vary greatly from country to country.Under European Union regulatory systems, marketing authorizations may be submitted either under a centralized, decentralized or mutual recognitionprocedure. The centralized procedure provides for the grant of a single marking authorization that is valid for all European Union member states. Thedecentralized procedure includes selecting one reference member state (RMS), and submitting to more than one member state at the same time. The RMSNational Competing Authority conducts a detailed review and prepares an assessment report, to which concerned member states provide comment. Themutual recognition procedure provides for mutual recognition of national approval decisions. Under this procedure, the holder of a national markingauthorization may submit an application to the remaining member states post-initial approval. Within 90 days of receiving the applications and assessmentreport, each member state must decide whether to recognize approval.In addition to regulations in Europe and the United States, we or our collaborators will be subject to a variety of foreign regulations governing clinical trialsand commercial distribution of our future drugs.Environmental RegulationWe are subject to numerous foreign, federal, state and local environmental, health and safety laws and regulations relating to, among other matters, safeworking conditions, product stewardship and end-of-life handling or disposition of products, and environmental protection, including those governing thegeneration, storage, handling, use, transportation and disposal of hazardous or potentially hazardous materials. Some of these laws and regulations require usto obtain licenses or permits to conduct our operations. Environmental laws and regulations are complex, change frequently and have tended to become morestringent over time. Although the costs to comply with applicable laws and regulations, including requirements in the European Union relating to therestriction of use of hazardous substances in products, have not been material, we cannot predict the impact on our business of new or amended laws orregulations or any changes in the way existing and future laws and regulations are interpreted or enforced, nor can we ensure we will be able to obtain ormaintain any required licenses or permits.17 EmployeesAs of February 29, 2016, we had 54 full-time employees, including a total of 15 employees with M.D. or Ph.D. degrees. Within our workforce, 39 employeesare engaged in research and development and 15 in business development, finance, legal, human resources, facilities, information technology and generalmanagement and administration. None of our employees are represented by labor unions or covered by collective bargaining agreements.Corporate and Available InformationWe were incorporated in Delaware in 2006. We completed the initial public offering of our common stock in August 2014. Our common stock is currentlylisted on The NASDAQ Global Market under the symbol “AAVL.” We are an “emerging growth company” under the Jumpstart Our Business Startups Act of2012, and therefore we are subject to reduced public company reporting requirements.Our principal executive offices are located at 1035 O’Brien Drive, Suite A, Menlo Park, CA 94025, and our telephone number is (650) 272-6269. Our websiteaddress is www.avalanchebiotech.com. We make available on our website, free of charge, our Annual Report on Form 10-K, our Quarterly Reports onForm 10-Q and our Current Reports on Form 8-K and any amendments to those reports filed or furnished pursuant to Section 13(a) or 15(d) of the SecuritiesExchange Act of 1934, as amended, or the Exchange Act, as soon as reasonably practicable after we electronically file such material with, or furnish it to, theSecurities and Exchange Commission, or the SEC. Further, a copy of this Annual Report on Form 10-K is located at the SEC’s Public Reference Room at100 F Street, N.E., Washington, D. C. 20549. Information on the operation of the Public Reference Room can be obtained by calling the SEC at 1-800-SEC-0330. The SEC maintains a website that contains reports, proxy and information statements and other information regarding our filings at www.sec.gov. Theinformation found on our website is not incorporated by reference into this Annual Report on Form 10-K or any other report we file with or furnish to theSEC. 18 Item 1A. Risk FactorsYou should consider carefully the risks and uncertainties described below, together with all of the other information in this Annual Report on Form 10-K. Ifany of the following risks are realized, our business, financial condition, results of operations and prospects could be materially and adversely affected. Therisks described below are not the only risks facing the Company. Risks and uncertainties not currently known to us or that we currently deem to beimmaterial also may materially adversely affect our business, financial condition, results of operations and/or prospects.Risks Related to Our Financial Position and Need for CapitalWe have incurred significant operating losses since inception, and we expect to incur significant losses for the foreseeable future. We may never becomeprofitable or, if achieved, be able to sustain profitability.We have incurred significant operating losses since we were founded in 2006 and expect to incur significant losses for the foreseeable future as we continuedevelopment of our product candidates. Our net loss for 2015 and 2014 was $47.5 million and $25.4 million, respectively. As of December 31, 2015, we hadan accumulated deficit of $84.2 million. Losses have resulted principally from costs incurred in our clinical trials, research and development programs andfrom our general and administrative expenses. In the future, we intend to continue to conduct research and development, clinical testing, regulatorycompliance activities and, if any of our product candidates is approved, sales and marketing activities that, together with anticipated general andadministrative expenses, will likely result in us incurring significant losses for the next several years.We have announced entry into the Acquisition Agreement with Annapurna. If the transaction with Annapurna (the Transaction) is successfully completed, weintend to continue Annapurna’s research and development activities, which will likely result in us incurring additional losses.We currently generate no revenue from sales, and we may never be able to commercialize AVA-101 or any of our other product candidates. We do notcurrently have the required approvals to market AVA-101 or any of our other product candidates, and we may never receive such approvals or, if theTransaction is completely successfully, approvals to market any product candidates of Annapurna. We may not be profitable even if we or any of our futuredevelopment partners succeed in commercializing any of our product candidates. Because of the numerous risks and uncertainties associated withdeveloping and commercializing our product candidates, we are unable to predict the extent of any future losses or when we will become profitable, if at all.If we fail to obtain the capital necessary to fund our operations, we will be unable to successfully develop and commercialize our product candidates.We will require substantial future capital in order to complete the preclinical and clinical development for our product candidates and to potentiallycommercialize these product candidates. Any future clinical trials of our product candidates would cause an increase in our spending levels, as would othercorporate activities. The amount and timing of any expenditure needed to implement our development and commercialization programs will depend onnumerous factors, including: ·the type, number, scope, progress, expansion costs, results of and timing of any future clinical trials of any of our product candidates which weare pursuing or may choose to pursue in the future; ·the need for, and the progress, costs and results of, any additional clinical trials of our product candidates we may initiate based on the resultsof any clinical trials that we may plan or discussions with the FDA, including any additional trials the FDA or other regulatory agencies mayrequire evaluating the safety of our product candidates; ·the costs of obtaining, maintaining and enforcing our patents and other intellectual property rights; ·the costs and timing of obtaining or maintaining manufacturing for our product candidates, including commercial manufacturing if anyproduct candidate is approved; ·the costs and timing of establishing sales and marketing capabilities and enhanced internal controls over financial reporting; ·the terms and timing of establishing collaborations, license agreements and other partnerships; ·costs associated with product candidates of Annapurna if the Transaction is completed successfully; ·costs associated with any new product candidates that we may develop, in-license or acquire; ·the effect of competing technological and market developments;19 ·our ability to establish and maintain partnering arrangements for development; and ·the costs associated with being a public company.Some of these factors are outside of our control. We do not expect our existing capital resources to be sufficient to enable us to fund the completion of ourclinical trials and remaining development program through commercial introduction. We expect that we will need to raise additional funds in the future.We have not sold any products, and we do not expect to sell or derive revenue from any product sales for the foreseeable future. We may seek additionalfunding through collaboration agreements and public or private financings. Additional funding may not be available to us on acceptable terms or at all, andgiven our decision not to move forward with a Phase 2b clinical trial for AVA-101 that we had planned to initiate in the second half of 2015, our ability toobtain funding in the future on favorable terms, or at all, may be substantially impaired. If the Transaction is not successfully completed, our ability to obtainfuture funding may be further impaired. In addition, the terms of any financing may adversely affect the holdings or the rights of our stockholders. Inaddition, the issuance of additional shares by us, or the possibility of such issuance, may cause the market price of our shares to decline.If we are unable to obtain funding on a timely basis, we will be unable to complete any future clinical trials for our product candidates and we may berequired to significantly curtail some or all of our activities. We also could be required to seek funds through arrangements with collaborative partners orotherwise that may require us to relinquish rights to our product candidates or some of our technologies or otherwise agree to terms unfavorable to us.Risks Related to the Discovery and Development of Our Product CandidatesOur business to date has depended substantially on the success of AVA-101. In the third quarter of 2015, we determined not to move forward with a Phase2b clinical trial for AVA-101 that we had planned to initiate in the second half of 2015. If we ultimately discontinue development of AVA-101,commercialization of our first product candidate may be delayed, and our business may be materially harmed.We currently have only one product candidate that has been the focus of advanced development efforts: AVA-101, a recombinant adeno-associated vectortype 2 (AAV2) encoding the anti-VEGF protein sFlt-1. To date, we have considered successful continued development and ultimate regulatory approval ofAVA-101 critical for our future business success.In the third quarter of 2015, following analysis of the data generated in our Phase 2a clinical study of AVA-101, we concluded that, overall, we did notobserve evidence of a complete and/or durable anti-VEGF response in the majority of subjects treated with AVA-101 as administered in the Phase 2a study.We decided not to move forward with the Phase 2b clinical trial for AVA-101 with the dose and administration procedure that we had planned to initiate inthe second half of 2015. We are instead conducting additional preclinical studies to inform further development of our wet AMD program, which hasincluded studies to evaluate and optimize protein expression to compare variables impacting total anti-VEGF effect such as volume, concentration, andequipment for and location of injections, as well as different routes and potential methods of administration for AVA-101 and AVA-201. We cannot predictthe outcome of these preclinical studies or whether we will ultimately decide to resume clinical development of AVA-101.Our other product candidates are in the early stage of development and will require additional preclinical studies, substantial clinical development andtesting, manufacturing bridging studies and process validation and regulatory approval prior to commercialization. If we decide to discontinue developmentof AVA-101 and focus on our other product candidates, commercialization of our first product candidate may be delayed, and we may not be able to generatesufficient revenue to continue our business.Even if we decide to resume clinical development of AVA-101 as part of our wet AMD program, such continued development would require additionalclinical studies that, in conjunction with the additional preclinical studies relating to our wet AMD program that we are undertaking, could result in asignificant development delay. If development of AVA-101 is delayed, our business may be materially harmed.We are conducting additional preclinical studies to further inform development of our wet AMD program, which has included studies to evaluate andoptimize protein expression, to compare variables impacting total anti-VEGF effect such as volume, concentration, and equipment for and location ofinjections, as well as different routes and potential methods of administration for AVA-101 and AVA-201. As part of our preclinical re-evaluation of our wetAMD program, direct comparisons of AVA-101 and -201 are being carried out. If we decide to resume clinical development of AVA-101, we may be requiredto conduct additional Phase 1 or Phase 2a clinical trials to demonstrate safety and tolerability of AVA-101. These additional studies could result in asignificant development delay. If development of AVA-101 is delayed, our competitors may be able to bring products to market before we do, and thecommercial viability of AVA-101 could be significantly reduced.20 Continued development and potential commercialization of AVA-101 would require additional investment of a significant portion of our time andfinancial resources. If we decide to continue development and potential commercialization of AVA-101 and are unable to obtain regulatory approval for,or successfully commercialize, AVA-101, our business may be materially harmed.We have invested a significant portion of our time and financial resources in the development of AVA-101. We believe that continued development of AVA-101, in particular development at a different dosage and/or with a different administration procedure than was studied in the Phase 2a study, will requireadditional preclinical studies and clinical trials, including potential additional Phase 1 or Phase 2a clinical trials to demonstrate safety and tolerability ofAVA-101 as administered in dose studies. This in turn will require further investment of a significant portion of our time and financial resources. The futureregulatory and commercial success of this product candidate is subject to a number of risks, including the following: ·we may not have sufficient financial and other resources to complete the necessary preclinical studies and clinical trials for AVA-101; ·we may not be able to provide evidence of efficacy and safety for AVA-101; ·we do not know the degree to which AVA-101 will be accepted as a therapy for wet AMD, even if approved; ·the results of our clinical trials may not meet the level of statistical or clinical significance required by the FDA or comparable foreignregulatory bodies for marketing approval; ·subjects in our clinical trials may die or suffer other adverse effects for reasons that may or may not be related to AVA-101; ·if approved for treatment of wet AMD, AVA-101 will likely compete with other treatments then available, including the off-label use ofproducts already approved for marketing and other therapies currently available or which may be developed; and ·we may not be able to obtain, maintain or enforce our patents and other intellectual property rights.Of the large number of biologics and drugs in development in the pharmaceutical industry, only a small percentage result in the submission of a BiologicsLicense Application (BLA) to the FDA and even fewer are approved for commercialization. Furthermore, even if we do receive regulatory approval to marketAVA-101, any such approval may be subject to limitations on the indicated uses for which we may market the product. Accordingly, even if we are able toobtain the requisite financing to continue to fund our development programs, we cannot assure you that AVA-101 will be successfully developed orcommercialized. If we decide to invest in the continued development and potential commercialization of AVA-101 and we or any of our future developmentpartners are unable to develop, or obtain regulatory approval for, or, if approved, successfully commercialize, AVA-101, we may not be able to generatesufficient revenue to continue our business.Our product candidates other than AVA-101 are still in preclinical development, and we are conducting additional preclinical studies relating to our wetAMD program, including AVA-101. If we are unable to commercialize our product candidates or if we experience significant delays in obtainingregulatory approval for, or commercializing, any or all of our product candidates, our business will be materially and adversely affected.Our product candidates, other than AVA-101, are still in preclinical development, and we are conducting additional preclinical studies relating to our wetAMD program, including AVA-101. Our ability to generate product revenue will depend heavily on our ability to successfully develop and commercializethese product candidates. We do not expect that such commercialization of any of our product candidates will occur for at least the next several years, if ever.Our ability to commercialize our product candidates effectively will depend on several factors, including the following: ·successful completion of preclinical studies and clinical trials, including the ability to demonstrate safety and efficacy of our productcandidates; ·receipt of marketing approvals from the FDA and similar regulatory authorities outside the United States; ·establishing commercial manufacturing capabilities, for example, by making arrangements with third-party manufacturers; ·successfully launching commercial sales of the product, whether alone or in collaboration with others; ·acceptance of the product by patients, the medical community and third-party payers; ·establishing market share while competing with other therapies; ·a continued acceptable safety profile of our products following regulatory approval;21 ·maintaining compliance with post-approval regulation and other requirements; and ·qualifying for, identifying, registering, maintaining, enforcing and defending intellectual property rights and claims covering our productcandidates.If we, or our collaborators, do not achieve one or more of these factors in a timely manner or at all, we could experience significant delays or an inability tocommercialize our product candidates, which would materially and adversely affect our business, financial condition and results of operations.We have conducted, and may in the future conduct, clinical trials for product candidates in sites outside the United States and the FDA may not acceptdata from trials conducted in such locations.We have conducted, and may in the future choose to conduct, one or more of our clinical trials outside the United States. For example, we recently conducteda Phase 1/2a trial for AVA-101 with LEI in Australia.Although the FDA may accept data from clinical trials conducted outside the United States, acceptance of this data is subject to certain conditions imposedby the FDA. For example, the clinical trial must be well designed and conducted and performed by qualified investigators in accordance with ethicalprinciples. The study population must also adequately represent the U.S. population, and the data must be applicable to the U.S. population and U.S. medicalpractice in ways that the FDA deems clinically meaningful. Generally, the patient population for any clinical studies conducted outside of the United Statesmust be representative of the population for whom we intend to label the product in the United States. In addition, while these clinical trials are subject to theapplicable local laws, FDA acceptance of the data will be dependent upon its determination that the studies also complied with all applicable U.S. laws andregulations. There can be no assurance the FDA will accept data from trials conducted outside of the United States. If the FDA does not accept the data fromour clinical trials for our product candidates, it would likely result in the need for additional trials, which would be costly and time-consuming and delay orpermanently halt our development of our product candidates.Our gene therapy platform is based on a novel technology, which makes it difficult to predict the time and cost of product candidate development andsubsequently obtaining regulatory approval. At the moment, no gene therapy products have been approved in the United States and only one gene therapyproduct has been approved in Europe.We have concentrated our research and development efforts on our gene therapy platform and our future success depends on the successful development ofproduct candidates based on this platform. There can be no assurance that any development problems we experience in the future related to our platform willnot cause significant delays or unanticipated costs, or that such development problems can be solved. We may also experience delays in developing asustainable, reproducible and scalable manufacturing process or transferring that process to commercial partners, which may prevent us from completing ourclinical studies or commercializing our products on a timely or profitable basis, if at all.In addition, the clinical study requirements of the FDA, the European Medicines Agency (EMA) and other regulatory agencies and the criteria theseregulators may use to determine the safety and efficacy of a product candidate vary substantially according to the type, complexity, novelty and intended useand market of the potential products. The regulatory approval process for novel product candidates such as ours can be more expensive and take longer thanfor other, better known or extensively studied pharmaceutical or other product candidates. As of the date of this Annual Report on Form 10-K the FDA hasnot approved any gene therapy products for sale and only one gene therapy product has been approved in the Western world, which makes it difficult todetermine how long it will take or how much it will cost to obtain regulatory approvals for our product candidates in either Europe or the United States.Approvals by the EMA may not be indicative of what the FDA may require for approval.Regulatory requirements governing gene and cell therapy products may change in the future. For example, the FDA has established the Office of Cellular,Tissue and Gene Therapies within its Center for Biologics Evaluation and Research (CBER) to consolidate the review of gene therapy and related products,and the Cellular, Tissue and Gene Therapies Advisory Committee to advise CBER on its review. Gene therapy clinical studies conducted at institutions thatreceive funding for recombinant DNA research from the U.S. National Institutes of Health (NIH) may also be subject to review by the NIH Office ofBiotechnology Activities’ Recombinant DNA Advisory Committee (RAC). Although the FDA decides whether individual gene therapy protocols mayproceed, the RAC review process can impede the initiation of a clinical study, even if the FDA has reviewed the study and approved its initiation. Clinicaltrial sites in the United States that receive NIH funding for research involving recombinant or synthetic nucleic acid molecules are required to follow RACrecommendations, or risk losing NIH funding for such research or needing NIH pre-approval before conducting such research.22 Conversely, the FDA can put an Investigational New Drug application (IND) on clinical hold even if the RAC has provided a favorable review. Also, before aclinical study can begin at an NIH-funded institution, that institution’s institutional review board (IRB) and its Institutional Biosafety Committee will haveto review the proposed clinical study to assess the safety of the study. In addition, adverse developments in clinical trials of gene therapy products conductedby others may cause the FDA or other regulatory bodies to change the requirements for approval of any of our product candidates.These regulatory review committees and advisory groups and the new guidelines they promulgate may lengthen the regulatory review process, require us toperform additional studies, increase our development costs, lead to changes in regulatory positions and interpretations, delay or prevent approval andcommercialization of these treatment candidates or lead to significant post-approval limitations or restrictions. As we advance our product candidates, wemay be required to consult with these regulatory and advisory groups, and comply with applicable guidelines. If we fail to do so, we may be required to delayor discontinue development of our product candidates. Delay or failure to obtain, or unexpected costs in obtaining, the regulatory approval necessary tobring a potential product to market could decrease our ability to generate sufficient product revenue to maintain our business.We may not be successful in our efforts to identify or discover additional product candidates.The success of our business depends primarily upon our ability to identify, develop and commercialize products based on our platform. Although our AVA-101 product candidate was in clinical development, we decided not to move forward with the Phase 2b clinical trial for AVA-101 with the dose andadministration procedure that we had planned to initiate in the second half of 2015. In addition, our research programs, including those subject to ourcollaboration with Regeneron, may fail to identify other potential product candidates for clinical development for a number of reasons. Our researchmethodology may be unsuccessful in identifying potential product candidates or our potential product candidates may be shown to have harmful side effectsor may have other characteristics that may make the products unmarketable or unlikely to receive marketing approval.If any of these events occur, we may be forced to abandon our development efforts for a program or programs, which would have a material adverse effect onour business and could potentially cause us to cease operations. Research programs to identify new product candidates require substantial technical, financialand human resources. We may focus our efforts and resources on potential programs or product candidates that ultimately prove to be unsuccessful.We have not tested any of our internally-developed viral vectors, or product candidates derived from these viral vectors, in clinical trials.Drug development has inherent risk. We recently conducted a Phase 1/2a human clinical trial for AVA-101, which is produced in a mammalian-cell basedmanufacturing system. However, neither AVA-101 manufactured in the baculovirus expression system (BVES) nor our other product candidates have everbeen evaluated in human clinical studies, and we may experience unexpected results in the future. We or any of our future development partners will berequired to demonstrate through adequate and well-controlled clinical trials that our product candidates containing our proprietary vectors are safe andeffective, with a favorable benefit-risk profile, for use in their target indications before we can seek regulatory approvals for their commercial sale. Drugdevelopment is a long, expensive and uncertain process, and delay or failure can occur at any stage of development, including after commencement of any ofour clinical trials.The results of preclinical studies and early clinical trials are not always predictive of future results. Any product candidate we or any of our futuredevelopment partners advance into clinical trials may not have favorable results in later clinical trials, if any, or receive regulatory approval.If our proprietary vectors are not shown to be safe and effective in targeting retinal tissue, we may not realize the value of our investment in directedevolution technology. In addition, success in early clinical trials does not mean that later clinical trials will be successful, because product candidates inlater-stage clinical trials may fail to demonstrate sufficient safety or efficacy despite having progressed through initial clinical testing. Furthermore, anyfuture trials will need to demonstrate sufficient safety and efficacy for approval by regulatory authorities in larger patient populations. Companies frequentlysuffer significant setbacks in advanced clinical trials, even after earlier clinical trials have shown promising results. For example, following analysis of thedata generated in our Phase 2a clinical trial of AVA-101, we concluded that, overall, we did not observe evidence of a complete and/or durable anti-VEGFresponse in the majority of subjects treated with AVA-101 as administered in the Phase 2a study. In addition, only a small percentage of products underdevelopment result in the submission of a BLA to the FDA and even fewer are approved for commercialization.We cannot be certain that any clinical trials that we plan will be successful, and any safety concerns observed in any one of our clinical trials in our targetedindications could limit the prospects for regulatory approval of our product candidates in those and other indications.23 Our product candidates are subject to extensive regulation, compliance with which is costly and time consuming, and such regulation may causeunanticipated delays or prevent the receipt of the required approvals to commercialize our product candidates.The clinical development, manufacturing, labeling, storage, record-keeping, advertising, promotion, import, export, marketing and distribution of ourproduct candidates are subject to extensive regulation by the FDA in the United States and by comparable authorities in foreign markets. In the United States,we are not permitted to market our product candidates until we receive regulatory approval from the FDA. The process of obtaining regulatory approval isexpensive, often takes many years and can vary substantially based upon the type, complexity and novelty of the products involved, as well as the targetindications and patient population. Approval policies or regulations may change, and the FDA has substantial discretion in the drug approval process,including the ability to delay, limit or deny approval of a product candidate for many reasons. Despite the time and expense invested in clinical developmentof product candidates, regulatory approval is never guaranteed.The FDA or comparable foreign regulatory authorities can delay, limit or deny approval of a product candidate for many reasons, including: ·such authorities may disagree with the design or implementation of our or any of our future development partners’ clinical trials; ·we or any of our future development partners may be unable to demonstrate to the satisfaction of the FDA or other regulatory authorities that aproduct candidate is safe and effective for any indication; ·such authorities may not accept clinical data from trials which are conducted at clinical facilities or in countries where the standard of care ispotentially different from that of the United States; ·the results of clinical trials may not demonstrate the safety or efficacy required by such authorities for approval; ·we or any of our future development partners may be unable to demonstrate that a product candidate’s clinical and other benefits outweigh itssafety risks; ·such authorities may disagree with our interpretation of data from preclinical studies or clinical trials; ·approval may be granted only for indications that are significantly more limited than what we apply for and/or with other significantrestrictions on distribution and use; ·such authorities may find deficiencies in the manufacturing processes or facilities of third-party manufacturers with which we or any of ourfuture development partners contract for clinical and commercial supplies; or ·the approval policies or regulations of such authorities may significantly change in a manner rendering our or any of our future developmentpartners’ clinical data insufficient for approval.With respect to foreign markets, approval procedures vary among countries and, in addition to the aforementioned risks, can involve additional producttesting, administrative review periods and agreements with pricing authorities. In addition, events raising questions about the safety of certain marketedpharmaceuticals may result in increased cautiousness by the FDA and comparable foreign regulatory authorities in reviewing new drugs based on safety,efficacy or other regulatory considerations and may result in significant delays in obtaining regulatory approvals. Any delay in obtaining, or inability toobtain, applicable regulatory approvals would prevent us or any of our future development partners from commercializing our product candidates.24 If we encounter difficulties enrolling subjects in our clinical trials, our clinical development activities could be delayed or otherwise adversely affected.Subject enrollment, a significant factor in the timing of clinical trials, is affected by many factors including the size and nature of the patient population, theproximity of patients to clinical sites, the eligibility criteria for the trial, the design of the clinical trial, competing clinical trials and clinicians’ and patients’perceptions as to the potential advantages of the product candidate being studied in relation to other available therapies, including any new drugs that maybe approved for the indications we are investigating. We will be required to identify and enroll a sufficient number of subjects with the relevant eye diseasewe are targeting for any future clinical trials for our product candidates. Potential subjects may not be adequately diagnosed or identified with the diseaseswhich we are targeting or may not meet the entry criteria for our studies. We also may encounter difficulties in identifying and enrolling subjects with a stageof disease appropriate for such future clinical trials. In addition, we and our collaboration partner, Regeneron, are developing AVA-311 for the treatment of X-linked retinoschisis (XLRS), an orphan indication. Enrollment of eligible subjects with orphan diseases may be limited or slower than we anticipate in lightof the small subject populations involved. We may not be able to initiate or continue clinical trials if we are unable to locate a sufficient number of eligiblesubjects to participate in the clinical trials required by the FDA or other foreign regulatory agencies. In addition, the process of finding and diagnosingsubjects may prove costly.Further, if patients are unwilling to participate in our gene therapy studies because of negative publicity from adverse events in the biotechnology or genetherapy industries or inadequate results in our preclinical or clinical studies or for other reasons, including competitive clinical trials for similar patientpopulations or available approved therapies, our recruitment of subjects, conduct of studies and ability to obtain regulatory approval of our productcandidates may be hindered.Trials using early versions of retroviral vectors, which integrate with, and thereby alter, the host cell’s DNA, have led to several well-publicized adverseevents. For example, generalized public backlash developed against gene therapy following the death in September 1999 of an 18-year-old who hadvolunteered for a gene therapy experiment at the University of Pennsylvania. Researchers at the university had infused the volunteer’s liver with a geneaimed at reversing a rare metabolic disease of the liver. The procedure triggered an extreme immune-system reaction that caused multiple-organ failure in avery short time, leading to the first death to occur as a direct result of a gene therapy experiment. In addition, in 2003, 20 subjects treated for X-linked severecombined immunodeficiency in two gene therapy studies using a murine gamma-retroviral vector showed correction of the disease, but the studies wereterminated after five subjects developed leukemia (four of whom were subsequently cured). The cause of these adverse events was shown to be insertionaloncogenesis, which is the process whereby the corrected gene inserts near a gene that is important in a critical cellular process like growth or division, andthis insertion results in the development of a cancer (often leukemia). Using molecular diagnostic techniques, it was determined that clones from thesesubjects showed retrovirus insertion in proximity to the promoter of the LMO2 proto-oncogene. Earlier generation retroviruses like the one used in these twostudies have been shown to preferentially integrate in regulatory regions of genes that control cell growth. Our inability to enroll a sufficient number ofsubjects for any of our future clinical trials would result in significant delays or may require us to abandon one or more clinical trials altogether.We believe we have appropriately accounted for the above factors in our trials when determining expected clinical trial timelines, but we cannot assure youthat our assumptions are correct or that we will not experience delays in enrollment, which would result in the delay of completion of such trials beyond ourexpected timelines.The occurrence of serious complications or side effects in connection with use of our product candidates, either in clinical trials or post-approval, couldlead to discontinuation of our clinical development program, refusal of regulatory authorities to approve our product candidates or, post-approval,revocation of marketing authorizations or refusal to approve new indications, which could severely harm our business, prospects, operating results andfinancial condition.During the conduct of clinical trials, patients report changes in their health, including illnesses, injuries and discomforts, to their study doctor. Often, it is notpossible to determine whether or not the product candidate being studied caused these conditions. Various illnesses, injuries, and discomforts have beenreported from time-to-time during clinical trials of our product candidates. It is possible that as we test our product candidates in larger, longer and moreextensive clinical programs, or as use of these product candidates becomes more widespread if they receive regulatory approval, illnesses, injuries,discomforts and other adverse events that were observed in earlier trials, as well as conditions that did not occur or went undetected in previous trials, will bereported by subjects. Many times, side effects are only detectable after investigational products are tested in large-scale, Phase 3 clinical trials or, in somecases, after they are made available to patients on a commercial scale after approval. If additional clinical experience indicates that any of our productcandidates has side effects or causes serious or life-threatening side effects, the development of the product candidate may fail or be delayed, or, if the productcandidate has received regulatory approval, such approval may be revoked, which would severely harm our business, prospects, operating results andfinancial condition.25 AVA-101 may be studied in diseases of the eye in addition to AMD if we continue development of AVA-101. There are many potential safety concernsassociated with significant blockade of VEGF that may limit our ability to successfully develop and/or commercialize AVA-101. These serious andpotentially life-threatening risks, based on clinical and preclinical experience of VEGF inhibitors, include bleeding, intestinal perforation, hypertension,proteinuria, congestive heart failure, heart attack, stroke and geographic atrophy. In addition, patients given infusions of any protein may develop severehypersensitivity reactions or infusion reactions. Other VEGF inhibitors have reported side effects that became evident only after large-scale trials or aftermarketing approval when large numbers of patients were treated. There are risks in treating patients with gene therapy vectors, including adeno-associatedvirus (AAV), such as inflammation, cytotoxic T-cell response, anti-AAV antibodies and immune response to the expressed transgene, including T-cellresponses and/or auto-antibodies against sFlt-1. There are risks inherent in the subretinal administration of drugs like AVA-101, which can cause injury to theeye and other complications. For example, in our Phase 1/2a trials of AVA-101 in wet AMD, the most frequent ocular adverse events were conjunctivalhemorrhage, cataracts, retinal hemorrhage and vitreous hemorrhage.There are also risks inherent in subretinal injections, including subretinal injections with AVA-101, such as intraocular inflammation, cataract, sterile andculture positive endophthalmitis, retinal detachment, retinal tear, epiretinal membrane (ERM) formation, and other side effects. Serious complications orserious, unexpected side effects in connection with the use of AVA-101 could materially harm our business, prospects’ operating results and financialcondition.Risks Related to Our Reliance on Third PartiesWe rely on third parties to conduct our clinical trials. If these third parties do not meet our deadlines or otherwise conduct the trials as required, ourclinical development programs could be delayed or unsuccessful and we may not be able to obtain regulatory approval for or commercialize our productcandidates when expected or at all.We do not have the ability to conduct all aspects of our preclinical testing or clinical trials ourselves. We are dependent on third parties to conductpreclinical and clinical trials for our product candidates, and, therefore, the timing of the initiation and completion of these trials is controlled by such thirdparties and may occur at times substantially different from our estimates. Specifically, we use clinical research organizations (CROs) to conduct our clinicaltrials and rely on medical institutions, clinical investigators, CROs and consultants to conduct our trials in accordance with our clinical protocols andregulatory requirements. Our CROs, investigators and other third parties play a significant role in the conduct of these trials and subsequent collection andanalysis of data.There is no guarantee that any CROs, investigators or other third parties on which we rely for administration and conduct of our clinical trials will devoteadequate time and resources to such trials or perform as contractually required. If any of these third parties fails to meet expected deadlines, fails to adhere toour clinical protocols, fails to meet regulatory requirements, or otherwise performs in a substandard manner, our clinical trials may be extended, delayed orterminated. If any of our clinical trial sites terminates for any reason, we may experience the loss of follow-up information on subjects enrolled in our ongoingclinical trials unless we are able to transfer those subjects to another qualified clinical trial site. In addition, principal investigators for our clinical trials mayserve as scientific advisors or consultants to us from time to time and may receive cash or equity compensation in connection with such services. If theserelationships and any related compensation result in perceived or actual conflicts of interest, or the FDA concludes that the financial relationship may haveaffected the interpretation of the study, the integrity of the data generated at the applicable clinical trial site may be questioned and the utility of the clinicaltrial itself may be jeopardized, which could result in the delay or rejection of any BLA we submit by the FDA. Any such delay or rejection could prevent usfrom commercializing our product candidates.We expect to rely on third parties to conduct some or all aspects of our vector production, product manufacturing, protocol development, research andpreclinical and clinical testing, and these third parties may not perform satisfactorily.We do not expect to independently conduct all aspects of our vector production, product manufacturing, protocol development, research and preclinical andclinical testing. We currently rely, and expect to continue to rely, on third parties with respect to these items.Any of these third parties may terminate their engagements with us at any time. If we need to enter into alternative arrangements, it could delay our productdevelopment activities. Our reliance on these third parties for research and development activities will reduce our control over these activities but will notrelieve us of our responsibility to ensure compliance with all required regulations and study protocols. For example, for product candidates that we developand commercialize on our own, we will remain responsible for ensuring that each of our IND-enabling studies and clinical trials are conducted in accordancewith the study plan and protocols.26 If these third parties do not successfully carry out their contractual duties, meet expected deadlines or conduct our studies in accordance with regulatoryrequirements or our stated study plans and protocols, we will not be able to complete, or may be delayed in completing, the preclinical and clinical studiesrequired to support future IND submissions and approval of our product candidates.Reliance on third-party manufacturers entails risks to which we would not be subject if we manufactured the product candidates ourselves, including: ·the inability to negotiate manufacturing agreements with third parties under commercially reasonable terms; ·reduced control as a result of using third-party manufacturers for all aspects of manufacturing activities; ·termination or nonrenewal of manufacturing agreements with third parties in a manner or at a time that is costly or damaging to us; and ·disruptions to the operations of our third-party manufacturers or suppliers caused by conditions unrelated to our business or operations,including the bankruptcy of the manufacturer or supplier.Any of these events could lead to clinical study delays or failure to obtain regulatory approval, or impact our ability to successfully commercialize futureproducts.We and our contract manufacturer are subject to significant regulation with respect to manufacturing our products. The manufacturing facility on whichwe rely may not continue to meet regulatory requirements and may have limited capacity.We currently have relationships with a single supplier for the manufacturing of our viral vectors and product candidates. The supplier may require licenses tomanufacture such components if such processes are not owned by the supplier or in the public domain and we may be unable to transfer or sublicense theintellectual property rights we may have with respect to such activities. All entities involved in the preparation of therapeutics for clinical studies orcommercial sale, including our existing contract manufacturer for our product candidates, are subject to extensive regulation. Components of a finishedtherapeutic product approved for commercial sale or used in late-stage clinical studies must be manufactured in accordance with current Good ManufacturingPractice (cGMP). These regulations govern manufacturing processes and procedures (including record keeping) and the implementation and operation ofquality systems to control and assure the quality of investigational products and products approved for sale. Poor control of production processes can lead tothe introduction of adventitious agents or other contaminants, or to inadvertent changes in the properties or stability of our product candidates that may notbe detectable in final product testing. We or our contract manufacturer must supply all necessary documentation in support of a BLA on a timely basis andmust adhere to the FDA’s current Good Laboratory Practice regulations and cGMP regulations enforced by the FDA through its facilities inspection program.Our contract manufacturer has not produced a commercially-approved product and therefore has not obtained the requisite FDA approvals to do so. Ourfacilities and quality systems and the facilities and quality systems of some or all of our third-party contractors must pass a pre-approval inspection forcompliance with the applicable regulations as a condition of regulatory approval of our product candidates or any of our other potential products. Inaddition, the regulatory authorities may, at any time, audit or inspect our manufacturing facilities or those of our third-party contractors involved with thepreparation of our product candidates or our other potential products or the associated quality systems for compliance with the regulations applicable to theactivities being conducted. If the facility does not pass a pre-approval plant inspection, FDA approval of the products will not be granted.The regulatory authorities also may, at any time following approval of a product for sale, audit our manufacturing facilities or those of our third-partycontractors. If any such inspection or audit identifies a failure to comply with applicable regulations or if a violation of our product specifications orapplicable regulations occurs independent of such an inspection or audit, we or the relevant regulatory authority may require remedial measures that may becostly and/or time-consuming for us or a third party to implement and that may include the temporary or permanent suspension of a clinical study orcommercial sales or the temporary or permanent closure of a facility. Such violations could also result in civil and/or criminal penalties. Any such remedialmeasures or other civil and/or criminal penalties imposed upon us or third parties with whom we contract could materially harm our business.If we or our third-party manufacturer fail to maintain regulatory compliance, the FDA can impose regulatory sanctions including, among other things, refusalto approve a pending application for a new drug product or biologic product, revocation of a pre-existing approval, other civil or criminal penalties orclosing one or more manufacturing facilities. As a result, our business, financial condition and results of operations may be materially harmed.Additionally, if supply from an approved manufacturer is interrupted, there could be a significant disruption in commercial supply. An alternativemanufacturer would need to be qualified through a BLA supplement which could result in further delay. The regulatory agencies may also require additionalstudies if a new manufacturer is relied upon for commercial production. Switching manufacturers may involve substantial costs and is likely to result in adelay in our desired clinical and commercial timelines.27 These factors could cause the delay of clinical studies, regulatory submissions, required approvals or commercialization of our product candidates, cause usto incur higher costs and prevent us from commercializing our products successfully. Furthermore, if our suppliers fail to meet contractual requirements, andwe are unable to secure one or more replacement suppliers capable of production at a substantially equivalent cost, our clinical studies may be delayed or wecould lose potential revenue.Our reliance on third parties requires us to share our trade secrets, which increases the possibility that a competitor will discover them or that our tradesecrets will be misappropriated or disclosed.Because we rely on third parties to research and develop and to manufacture our product candidates, we must, at times, share trade secrets with them. We seekto protect our proprietary technology in part by entering into confidentiality agreements and, if applicable, material transfer agreements, consultingagreements or other similar agreements with our advisors, employees, third-party contractors and consultants prior to beginning research or disclosingproprietary information. These agreements typically limit the rights of the third parties to use or disclose our confidential information, including our tradesecrets. Despite the contractual provisions employed when working with third parties, the need to share trade secrets and other confidential informationincreases the risk that such trade secrets become known by our competitors, are inadvertently incorporated into the technology of others, or are disclosed orused in violation of these agreements. Given that our proprietary position is based, in part, on our know-how and trade secrets, a competitor’s independentdiscovery of our trade secrets or other unauthorized use or disclosure would impair our competitive position and may have a material adverse effect on ourbusiness.In addition, these agreements typically restrict the ability of our advisors, employees, third-party contractors and consultants to publish data potentiallyrelating to our trade secrets, although our agreements may contain certain limited publication rights. For example, any academic institution that we maycollaborate with in the future will usually expect to be granted rights to publish data arising out of such collaboration, provided that we are notified inadvance and given the opportunity to delay publication for a limited time period in order for us to secure patent protection of intellectual property rightsarising from the collaboration, in addition to the opportunity to remove confidential or trade secret information from any such publication. In the future wemay also conduct joint research and development programs that may require us to share trade secrets under the terms of our research and development orsimilar agreements. Despite our efforts to protect our trade secrets, our competitors may discover our trade secrets, either through breach of our agreementswith third parties, independent development or publication of information by any of our third-party collaborators. A competitor’s discovery of our tradesecrets would impair our competitive position and have an adverse impact on our business.Risks Related to Commercialization of Our Product CandidatesAny termination or suspension of, or delays in the commencement or completion of, clinical trials for our product candidates, including AVA-101, couldresult in increased costs to us, delay or limit our ability to generate revenue and adversely affect our commercial prospects.Before we can initiate clinical trials in the United States for our product candidates, we need to submit the results of preclinical testing to the FDA, along withother information including information about product candidate chemistry, manufacturing and controls and our proposed clinical trial protocol, as part of anIND. We may rely in part on preclinical, clinical and quality data generated by CROs and other third parties for regulatory submissions for our productcandidates. If these third parties do not make timely regulatory submissions for our product candidates, it will delay our plans for our clinical trials. If thosethird parties do not make this data available to us, we will likely have to develop all necessary preclinical and clinical data on our own, which will lead tosignificant delays and increase development costs of the product candidate. In addition, the FDA may require us to conduct additional preclinical testing forany product candidate before it allows us to initiate clinical testing under any IND, which may lead to additional delays and increase the costs of ourpreclinical development. Delays in the commencement or completion of any clinical trials that we plan for our product candidates could significantly affectour product development costs. We do not know whether any trials that we plan will begin on time or be completed on schedule, if at all. The commencementand completion of clinical trials can be delayed for a number of reasons, including delays related to: ·the FDA failing to grant permission to proceed or placing the clinical trial on hold; ·subjects failing to enroll or remain in our trial at the rate we expect; ·subjects choosing an alternative treatment for the indication for which we are developing our product candidates, or participating in competingclinical trials; ·lack of adequate funding to continue the clinical trial; ·subjects experiencing severe or unexpected drug-related adverse effects;28 ·a facility manufacturing any of our product candidates or any of their components being ordered by the FDA or other government or regulatoryauthorities to temporarily or permanently shut down due to violations of cGMP or other applicable requirements, or infections or cross-contaminations of product candidates in the manufacturing process; ·any changes to our manufacturing process that may be necessary or desired; ·third-party clinical investigators losing the licenses or permits necessary to perform our clinical trials, not performing our clinical trials on ouranticipated schedule or consistent with the clinical trial protocol, Good Clinical Practice or regulatory requirements or other third parties notperforming data collection or analysis in a timely or accurate manner; ·inspections of clinical trial sites by the FDA or the finding of regulatory violations by the FDA or an IRB that require us to undertake correctiveaction, result in suspension or termination of one or more sites or the imposition of a clinical hold on the entire trial or that prohibit us fromusing some or all of the data in support of our marketing applications; ·third-party contractors becoming debarred or suspended or otherwise penalized by the FDA or other government or regulatory authorities forviolations of regulatory requirements, in which case we may need to find a substitute contractor, and we may not be able to use some or all ofthe data produced by such contractors in support of our marketing applications; or ·one or more IRBs refusing to approve, suspending or terminating the trial at an investigational site, precluding enrollment of additionalsubjects, or withdrawing its approval of the trial.Product development costs will increase if we have delays in testing or approval of any of our product candidates, or if we need to perform more or largerclinical trials than planned. Additionally, changes in regulatory requirements and policies may occur, and we may need to amend clinical trial protocols toreflect these changes. Amendments may require us to resubmit our clinical trial protocols to IRBs for reexamination, which may impact the costs, timing orsuccessful completion of a clinical trial. If we experience delays in completion of our clinical trials, or if we, the FDA or other regulatory authorities, the IRB,other reviewing entities, or any of our clinical trial sites suspend or terminate any of our clinical trials, the commercial prospects for a product candidate maybe harmed and our ability to generate product revenue will be delayed. In addition, many of the factors that cause, or lead to, termination or suspension of, ora delay in the commencement or completion of, clinical trials may also ultimately lead to the denial of regulatory approval of a product candidate. Forexample, if we make manufacturing or formulation changes to our product candidates, we may need to conduct additional studies to bridge our modifiedproduct candidates to earlier versions. Further, if one or more clinical trials are delayed, our competitors may be able to bring products to market before wedo, and the commercial viability of our product candidates could be significantly reduced. For example, in the third quarter of 2015, we decided not to moveforward with the Phase 2b clinical trial for AVA-101 with the dose and administration procedure that we had planned to initiate in the second half of 2015,and, as a result, our competitors may be able to bring wet AMD products to the market ahead of us and the commercial viability of AVA-101 could bereduced.If we do not achieve our projected development goals in the time frames we announce and expect, the commercialization of our products may be delayedand, as a result, our stock price may decline.From time to time, we estimate the timing of the accomplishment of various scientific, clinical, regulatory and other product development goals, which wesometimes refer to as milestones. These milestones may include the commencement or completion of scientific studies and clinical trials and the submissionof regulatory filings. From time to time, we may publicly announce the expected timing of some of these milestones. All of these milestones will be based ona variety of assumptions. The actual timing of these milestones can vary dramatically compared to our estimates, in some cases for reasons beyond ourcontrol. If we do not meet these milestones as publicly announced, the commercialization of our products may be delayed and, as a result, our stock price maydecline.Final marketing approval for our product candidates by the FDA or other regulatory authorities for commercial use may be delayed, limited or denied,any of which would adversely affect our ability to generate operating revenue.After the completion of our clinical trials and, assuming the results of the trials are successful, the submission of a BLA, we cannot predict whether or whenwe will obtain regulatory approval to commercialize our product candidates, and we cannot, therefore, predict the timing of any future revenue. We cannotcommercialize our product candidates until the appropriate regulatory authorities have reviewed and approved the applicable applications. We cannot assureyou that the regulatory agencies will complete their review processes in a timely manner or that we will obtain regulatory approval for our productcandidates. In addition, we may experience delays or rejections based upon additional government regulation from future legislation or administrative actionor changes in FDA policy during the period of product development, clinical trials and FDA regulatory review. If marketing approval for any productcandidate is delayed, limited or denied, our ability to market the product candidate, and our ability to generate product sales, would be adversely affected.29 Even if we obtain marketing approval for any of our product candidates, they could be subject to restrictions or withdrawal from the market, and we maybe subject to penalties if we fail to comply with regulatory requirements or if we experience unanticipated problems with our product candidates, whenand if any of them are approved.Even if U.S. regulatory approval is obtained, the FDA may still impose significant restrictions on a product’s indicated uses or marketing or impose ongoingrequirements for potentially costly and time consuming post-approval studies, post-market surveillance or clinical trials. Following approval, if at all, of anyof our product candidates, such candidate will also be subject to ongoing FDA requirements governing the labeling, packaging, storage, distribution, safetysurveillance, advertising, promotion, recordkeeping and reporting of safety and other post-market information. In addition, manufacturers of drug productsand their facilities are subject to continual review and periodic inspections by the FDA and other regulatory authorities for compliance with cGMPrequirements relating to quality control, quality assurance and corresponding maintenance of records and documents. If we or a regulatory agency discoverspreviously unknown problems with a product, such as adverse events of unanticipated severity or frequency, or problems with the facility where the productis manufactured, a regulatory agency may impose restrictions on that product, the manufacturing facility or us, including requesting recall or withdrawal ofthe product from the market or suspension of manufacturing.If we or the manufacturing facilities for any product candidate that may receive regulatory approval fail to comply with applicable regulatory requirements, aregulatory agency may: ·issue warning letters or untitled letters; ·seek an injunction or impose civil or criminal penalties or monetary fines; ·suspend or withdraw regulatory approval; ·suspend any ongoing clinical trials; ·refuse to approve pending applications or supplements or applications filed by us; ·suspend or impose restrictions on operations, including costly new manufacturing requirements; or ·seize or detain products, refuse to permit the import or export of product or request us to initiate a product recall.The occurrence of any event or penalty described above may inhibit our ability to commercialize our product candidates and generate revenue. The FDA hasthe authority to require a risk evaluation and mitigation strategy plan as part of a BLA or after approval, which may impose further requirements orrestrictions on the distribution or use of an approved drug, such as limiting prescribing to certain physicians or medical centers that have undergonespecialized training, limiting treatment to patients who meet certain safe-use criteria and requiring treated patients to enroll in a registry.In addition, if any of our product candidates is approved, our product labeling, advertising and promotion would be subject to regulatory requirements andcontinuing regulatory review. The FDA strictly regulates the promotional claims that may be made about prescription products. In particular, a product maynot be promoted for uses that are not approved by the FDA as reflected in the product’s approved labeling. If we receive marketing approval for a productcandidate, physicians may nevertheless prescribe it to their patients in a manner that is inconsistent with the approved label. If we are found to have promotedsuch off-label uses, we may become subject to significant liability. The FDA and other agencies actively enforce the laws and regulations prohibiting thepromotion of off-label uses, and a company that is found to have improperly promoted off-label uses may be subject to significant sanctions. The federalgovernment has levied large civil and criminal fines against companies for alleged improper promotion and has enjoined several companies from engaging inoff-label promotion. The FDA has also requested that companies enter into consent decrees or permanent injunctions under which specified promotionalconduct is changed or curtailed.Even if we receive regulatory approval we still may not be able to successfully commercialize our product candidate, and the revenue that we generatefrom its sales, if any, could be limited.Even if any of our product candidates receive regulatory approval, they may not gain market acceptance among physicians, patients, healthcare payers or themedical community. Coverage and reimbursement of our product candidates by third-party payers, including government payers, is also generally necessaryfor commercial success. The degree of market acceptance of our product candidates will depend on a number of factors, including: ·demonstration of clinical efficacy and safety compared to other more-established products; ·the limitation of our targeted patient population and other limitations or warnings contained in any FDA-approved labeling; ·acceptance of a new formulation by health care providers and their patients;30 ·the prevalence and severity of any adverse effects; ·new procedures or methods of treatment that may be more effective in treating or may reduce the incidences of wet AMD or other conditions forwhich our products are intended to treat; ·pricing and cost-effectiveness; ·the effectiveness of our or any future collaborators’ sales and marketing strategies; ·our ability to obtain and maintain sufficient third-party coverage and reimbursement from government health care programs, includingMedicare and Medicaid, private health insurers and other third-party payers; ·unfavorable publicity relating to the product candidate; and ·the willingness of patients to pay out-of-pocket in the absence of third-party coverage and reimbursement.If any product candidate is approved but does not achieve an adequate level of acceptance by physicians, hospitals, healthcare payers or patients, we may notgenerate sufficient revenue from that product candidate and may not become or remain profitable. Our efforts to educate the medical community and third-party payers on the benefits of such a product candidate may require significant resources and may never be successful. In addition, our ability to successfullycommercialize our product candidate will depend on our ability to manufacture our products, differentiate our products from competing products and defendand enforce our intellectual property rights relating to our products.If the market for the treatment of wet AMD is smaller than we believe it is, our future revenue may be adversely affected, and our business may suffer.If the size of the market for wet AMD is smaller than we anticipate, we may not be able to achieve profitability and growth. While we are initially targetingproduct candidates for the treatment of wet AMD, a disease we believe to be the most common cause of vision loss in adults over the age of 50 in developedcountries, our projections of the number of people who have wet AMD, as well as the subset of people with these diseases who have the potential to benefitfrom treatment with wet AMD, are based on estimates. These estimates have been derived from a variety of sources, including the scientific literature, surveysof clinics, patient foundations and market research and may prove to be incorrect. Further, new studies may change the estimated incidence or prevalence ofthese diseases. The number of patients may turn out to be lower than expected. The effort to identify patients with diseases we seek to treat is in early stages,and we cannot accurately predict the number of patients for whom treatment might be possible. Additionally, the potentially addressable patient populationmay be limited or may not be amenable to treatment with our product candidates, and new patients may become increasingly difficult to identify or gainaccess to, which would adversely affect our results of operations and our business. Further, even if we obtain significant market share for our productcandidates, because the potential target populations are very small, we may never achieve profitability despite obtaining such significant market share.Coverage and reimbursement may be limited or unavailable in certain market segments for our product candidates, which could make it difficult for us tosell our product candidates profitably.Market acceptance and sales of our product candidates will depend significantly on the availability of adequate coverage and reimbursement from third-partypayers for any of our product candidates and may be affected by existing and future health care reform measures. Government authorities and third-partypayers, such as private health insurers and health maintenance organizations, decide which drugs they will pay for and establish reimbursement levels.Reimbursement by a third-party payer may depend upon a number of factors including the third-party payer’s determination that use of a product candidateis: ·a covered benefit under its health plan; ·safe, effective and medically necessary; ·appropriate for the specific patient; ·cost-effective; and ·neither experimental nor investigational.31 Obtaining coverage and reimbursement approval for a product candidate from a government or other third-party payer is a time-consuming and costly processthat could require us to provide supporting scientific, clinical and cost effectiveness data for the use of the applicable product candidate to the payer. We maynot be able to provide data sufficient to gain acceptance with respect to coverage and reimbursement. We cannot be sure that coverage or adequatereimbursement will be available for any of our product candidates. Further, reimbursement amounts may reduce the demand for, or the price of, our productcandidates. If reimbursement is not available or is available only in limited levels, we may not be able to commercialize certain of our product candidatesprofitably, or at all, even if approved.As a result of legislative proposals and the trend toward managed health care in the United States, third-party payers are increasingly attempting to containhealth care costs by limiting both coverage and the level of reimbursement of new drugs. By way of example, the Medicare Prescription Drug Improvementand Modernization Act of 2003 (MMA) changed the way Medicare covers and pays for pharmaceutical products. The legislation expanded Medicarecoverage for outpatient drug purchases by those covered by Medicare under a new Part D and introduced a new reimbursement methodology based onaverage sales prices for Medicare Part B physician-administered drugs, including drugs currently on the market used by physicians to treat wet AMD andlikely AVA-101, if approved. As a result of this legislation and the expansion of federal coverage of drug products, there is additional pressure to contain andreduce costs. While the MMA applies only to drug benefits for Medicare beneficiaries, private payers often follow Medicare coverage policy and paymentlimitations in setting their own reimbursement rates, and any reduction in reimbursement that results from the MMA may result in a similar reduction inpayments from private payers. These cost reduction initiatives and other provisions of the MMA could decrease the coverage and reimbursement that wereceive for any approved products, and could seriously harm our business.In March 2010, the Patient Protection and Affordable Care Act, as amended by the Health Care and Education Reconciliation Act, collectively referred to asthe Affordable Care Act, was enacted with a goal of reducing the cost of healthcare and substantially changing the way healthcare is financed by bothgovernment and private insurers. The Affordable Care Act, among other things, addressed a new methodology by which rebates owed by manufacturers underthe Medicaid Drug Rebate Program are calculated for drugs that are inhaled, infused, instilled, implanted or injected, increased the minimum Medicaidrebates owed by manufacturers under the Medicaid Drug Rebate Program, extended the rebate program to individuals enrolled in Medicaid managed careorganizations and established annual fees and taxes on manufacturers of certain prescription drugs.Other legislative changes have also been proposed and adopted in the U.S. since the Affordable Care Act was enacted. On August 2, 2011, the BudgetControl Act of 2011 created measures for spending reductions by Congress. A Joint Select Committee on Deficit Reduction, tasked with recommending atargeted deficit reduction of at least $1.2 trillion for the years 2013 through 2021, was unable to reach required goals, thereby triggering the legislation’sautomatic reduction to several government programs. This included aggregate reductions of Medicare payments to providers of 2% per fiscal year, whichwent into effect on April 1, 2013 and will stay in effect through 2024 unless additional Congressional action is taken.We expect that additional healthcare reform measures will be adopted in the future, any of which could limit the amounts that federal, state and foreigngovernments will pay for healthcare products and services, which could result in reduced demand for our products, if approved, or additional pricingpressures.The continuing efforts of the government, insurance companies, managed care organizations and other payers of healthcare services to contain or reducecosts of health care may adversely affect: ·the demand for any product candidates for which we may obtain regulatory approval; ·our ability to set a price that we believe is fair for our product candidates; ·our ability to generate revenue and achieve or maintain profitability; ·the level of taxes that we are required to pay; and ·the availability of capital.Due to the novel nature of our technology and the potential for our product candidates to offer therapeutic benefit in a single administration, we faceuncertainty related to pricing and reimbursement for these product candidates.Our product candidates are designed to provide potential therapeutic benefit after a single administration and, therefore, the pricing and reimbursement of ourproduct candidates, if approved, must be adequate to support commercial infrastructure. If we are unable to obtain adequate levels of reimbursement, ourability to successfully market and sell our product candidates will be adversely affected. The manner and level at which reimbursement is provided forservices related to our product candidates (e.g., for administration of our product to patients) is also important. Inadequate reimbursement for such servicesmay lead to physician resistance and adversely affect our ability to market or sell our products.32 If we fail to develop and commercialize other product candidates, we may be unable to grow our business.Although the development and commercialization of gene therapy for the treatment of wet AMD is our primary focus, as part of our longer-term growthstrategy, we plan to evaluate the development and commercialization of other gene therapies related to ocular diseases. We will evaluate internalopportunities from our library of adeno-associated virus (AAV) variants, and also may choose to in-license or acquire other product candidates as well ascommercial products to treat patients suffering from ocular diseases such as diabetic macular edema (DME), retinal vein occlusion (RVO), glaucoma, XLRS orother disorders with high unmet medical needs and limited treatment options. These other product candidates will require additional, time-consumingdevelopment efforts prior to commercial sale, including preclinical studies, clinical trials and approval by the FDA and/or applicable foreign regulatoryauthorities. All product candidates are prone to the risks of failure that are inherent in pharmaceutical product development, including the possibility that theproduct candidate will not be shown to be sufficiently safe and/or effective for approval by regulatory authorities. In addition, we cannot assure you that anysuch products that are approved will be manufactured or produced economically, successfully commercialized or widely accepted in the marketplace or bemore effective than other commercially available alternatives.We are subject to many manufacturing risks, any of which could substantially increase our costs and limit supply of our products.The process of manufacturing our products is complex, highly regulated and subject to several risks, including: ·The manufacturing of biologics is extremely susceptible to product loss due to contamination, equipment failure, improper installation oroperation of equipment or vendor or operator error. Even minor deviations from normal manufacturing processes could result in reducedproduction yields, product defects and other supply disruptions. If microbial, viral or other contaminations are discovered in our products or inthe manufacturing facility in which our products are made, such manufacturing facility may need to be closed for an extended period of time toinvestigate and remedy the contamination. ·The manufacturing facility in which our products are made could be adversely affected by equipment failures, labor shortages, contaminants,raw materials shortages, natural disasters, power failures and numerous other factors. ·We and our contract manufacturer must comply with the FDA’s cGMP regulations and guidelines. We and our contract manufacturer mayencounter difficulties in achieving quality control and quality assurance and may experience shortages in qualified personnel. We and ourcontract manufacturer are subject to inspections by the FDA and comparable agencies in other jurisdictions to confirm compliance withapplicable regulatory requirements. Any failure to follow cGMP or other regulatory requirements or any delay, interruption or other issues thatarise in the manufacture, fill-finish, packaging or storage of our products as a result of a failure of our facilities or the facilities or operations ofthird parties to comply with regulatory requirements or pass any regulatory authority inspection could significantly impair our ability todevelop and commercialize our products. This may lead to significant delays in the availability of products for our clinical studies or thetermination or hold on a clinical study, or the delay or prevention of a filing or approval of marketing applications for our product candidates.Significant noncompliance could also result in the imposition of sanctions, including fines, injunctions, civil penalties, failure of regulatoryauthorities to grant marketing approvals for our product candidates, delays, suspension or withdrawal of approvals, license revocation, seizuresor recalls of products, operating restrictions and criminal prosecutions, any of which could be costly and damage our reputation. If we are notable to maintain regulatory compliance, we may not be permitted to market our products and/or may be subject to product recalls, seizures,injunctions or criminal prosecution. ·Our product candidates are biologics and require processing steps that are more complex than those required for most chemicalpharmaceuticals. Moreover, unlike chemical pharmaceuticals, the physical and chemical properties of a biologic such as our productcandidates generally cannot be adequately characterized prior to manufacturing the final product. As a result, an assay of the finished productis not sufficient to ensure that the product will perform in the intended manner. Accordingly, we expect to employ multiple steps to attempt tocontrol our manufacturing process to assure that the process works and the product or product candidate is made strictly and consistently incompliance with the process. ·Problems with the manufacturing process, even minor deviations from the normal process, could result in product defects or manufacturingfailures that result in lot failures, product recalls, product liability claims and insufficient inventory.33 ·Some of the raw materials required in our manufacturing process are derived from biological sources. Such raw materials are difficult to procureand may also be subject to contamination or recall. A material shortage, contamination, recall or restriction on the use of biologically derivedsubstances in the manufacture of our product candidates could adversely impact or disrupt commercialization. ·Any adverse developments affecting manufacturing operations for our products may result in shipment delays, inventory shortages, lot failures,product withdrawals or recalls, or other interruptions in the supply of our products. We may also have to take inventory write-offs and incurother charges and expenses for products that fail to meet specifications, undertake costly remediation efforts or seek more costly manufacturingalternatives. We may encounter problems achieving adequate or clinical-grade materials that meet FDA, EMA or other applicable standards orspecifications with consistent and acceptable production yields and costs.We may not be successful in establishing and maintaining development or other strategic collaborations, which could adversely affect our ability todevelop and commercialize product candidates.We have entered into development or other strategic collaborations with major biotechnology or pharmaceutical companies. For example, our researchcollaboration and license agreement with Regeneron, which was announced in May 2014, covers up to eight distinct therapeutic targets, in which we couldearn up to $80.0 million in development and regulatory milestones for product candidates directed toward each therapeutic target, for a combined total of upto $640.0 million in potential milestone payments for product candidates directed toward all eight therapeutic targets, and low- to mid-single digit royaltieson worldwide net sales of collaboration product candidates. For any two therapeutic targets, we have an option to share up to 35% of the worldwide productcandidate development costs and profits.Some of our strategic partners may terminate any agreements they enter into with us, and we may not be able to adequately protect our rights under theseagreements. Furthermore, our strategic partners have negotiated for certain rights to control decisions regarding the development and commercialization ofour product candidates, if approved, and may not conduct those activities in the same manner as we do.Moreover, if we fail to maintain development or other strategic collaborations related to our product candidates that we may choose to enter into: ·the development of certain of our current or future product candidates may be terminated or delayed; ·our cash expenditures related to development of certain of our current or future product candidates would increase significantly, and we mayneed to seek additional financing; ·we may be required to hire additional employees or otherwise develop expertise, such as sales and marketing expertise, for which we have notbudgeted; and ·we will bear all of the risk related to the development of any such product candidates.We may form strategic alliances in the future, and we may not realize the benefits of such alliances.We may form strategic alliances, create joint ventures or collaborations or enter into licensing arrangements with third parties that we believe willcomplement or augment our existing business, including for the continued development or commercialization of our product candidates. These relationshipsor those like them may require us to incur non-recurring and other charges, increase our near- and long-term expenditures, issue securities that dilute ourexisting stockholders or disrupt our management and business. In addition, we face significant competition in seeking appropriate strategic partners and thenegotiation process is time-consuming and complex. Moreover, we may not be successful in our efforts to establish a strategic partnership or other alternativearrangements for our product candidates because third parties may view the risk of failure in future clinical trials as too significant or the commercialopportunity for our product candidate as too limited. We cannot be certain that, following a strategic transaction or license, we will achieve the revenue orspecific net income that justifies such transaction. Even if we are successful in our efforts to establish development partnerships, the terms that we agree uponmay not be favorable to us, and we may not be able to maintain such development partnerships if, for example, development or approval of a productcandidate is delayed or sales of an approved product candidate are disappointing. Any delay in entering into development partnership agreements related toour product candidates could delay the development and commercialization of our product candidates and reduce their competitiveness if they reach themarket.34 If our competitors develop treatments for the target indications of our product candidates that are approved more quickly than ours, marketed moresuccessfully or demonstrated to be safer or more effective than our product candidates, our commercial opportunity will be reduced or eliminated.We operate in highly competitive segments of the biopharmaceutical markets. We face competition from many different sources, including larger and better-funded pharmaceutical, specialty pharmaceutical and biotechnology companies, as well as from academic institutions, government agencies and private andpublic research institutions. Our product candidates, if successfully developed and approved, will compete with established therapies as well as with newtreatments that may be introduced by our competitors. There are a variety of drug candidates in development for the indications that we intend to test. Manyof our competitors have significantly greater financial, product candidate development, manufacturing and marketing resources than we do. Largepharmaceutical and biotechnology companies have extensive experience in clinical testing and obtaining regulatory approval for drugs. In addition,universities and private and public research institutes may be active in wet AMD research, and some could be in direct competition with us. We also maycompete with these organizations to recruit management, scientists and clinical development personnel. We will also face competition from these thirdparties in establishing clinical trial sites, registering subjects for clinical trials and in identifying and in-licensing new product candidates. Smaller or early-stage companies may also prove to be significant competitors, particularly through collaborative arrangements with large and established companies.New developments, including the development of other pharmaceutical technologies and methods of treating disease, occur in the pharmaceutical and lifesciences industries at a rapid pace. Developments by competitors may render our product candidates obsolete or noncompetitive. Competition in drugdevelopment is intense. We anticipate that we will face intense and increasing competition as new treatments enter the market and advanced technologiesbecome available.Even if we obtain regulatory approval for our product candidates, the availability and price of our competitors’ products could limit the demand, and theprice we are able to charge, for our product candidates. For example, EYLEA® is currently available in the United States for treatment of wet AMD andmacular edema following central retinal vein occlusion (CRVO), and in the United Kingdom, Germany, Switzerland, Australia, Japan and certain othercountries for the treatment of wet AMD. Additionally, marketing approval has been obtained in the EU for EYLEA® for the treatment of visual impairmentdue to macular edema secondary to CRVO. We will not achieve our business plan if the acceptance of our product candidates is inhibited by pricecompetition or the reluctance of physicians to switch from existing methods of treatment to our product candidates, or if physicians switch to other new drugproducts or choose to reserve our product candidates for use in limited circumstances. Our inability to compete with existing or subsequently introduced drugproducts would have a material adverse impact on our business, prospects, financial condition and results of operations.Our potential competitors in these diseases may be developing novel immune modulating therapies that may be safer or more effective than our productcandidates, including AVA-101. For example, if we resume clinical development of, and seek to commercialize, AVA-101, AVA-101 will compete with avariety of therapies currently marketed and in development for wet AMD, using therapeutic modalities such as biologics, small molecules and gene therapy.Lucentis®, EYLEA® and Avastin® are anti-VEGF therapies that are well established and widely accepted by physicians, patients and third-party payers asthe standard of care for the treatment of wet AMD. There are several other companies with marketed products or products in development for the treatment ofwet AMD, including Allergan, Iconic Therapeutics, Inc., Novartis AG, Ocular Therapeutix, Inc., Ophthotech Corporation, Hoffmann-La Roche Ltd.,Neurotech Pharmaceuticals, Inc., Regeneron, Santen Pharmaceuticals Co., Ltd., Valeant Pharmaceuticals North America LLC, ReGenX Biosciences LLC,Applied Genetic Technologies Corporation, Oxford Biomedica plc, Ohr Pharmaceuticals, Inc. and Mesoblast Limited.Our preclinical product candidates are being developed for the treatment of prevalent or rare ophthalmic diseases, such as the prevention of wet AMD andXLRS, for which there are no approved therapies. However, there are multiple companies developing gene therapies for ophthalmic diseases, includingApplied Genetic Technologies Corporation, Asklepios BioPharmaceutical Inc., Eos Neuroscience, Inc., ReGenX Biosciences LLC, GenSight Biologics,Genzyme Corporation, Hemera Biosciences, Inc., RetroSense Therapeutics, LLC, Spark Therapeutics, Inc., Oxford Biomedica plc, Sanofi-Aventis S.A.,NightStaRx Limited and 4D Molecular Therapeutics, LLC and Benitec Biopharma Limited.35 We have no sales, marketing or distribution capabilities, and we may have to invest significant resources to develop these capabilities.We have no internal sales, marketing or distribution capabilities. If any of our product candidates ultimately receive regulatory approval, we may not be ableto effectively market and distribute the product candidate. We may have to invest significant amounts of financial and management resources to developinternal sales, distribution and marketing capabilities, some of which will be committed prior to any confirmation that any of our product candidates will beapproved, if at all. We may not be able to hire consultants or external service providers to assist us in sales, marketing and distribution functions onacceptable financial terms or at all. Even if we determine to perform sales, marketing and distribution functions ourselves, we could face a number ofadditional related risks, including: ·we may not be able to attract and build an effective marketing department or sales force; ·the cost of establishing a marketing department or sales force may exceed our available financial resources and the revenue generated by anyproduct candidates that we may develop, in-license or acquire; and ·our direct sales and marketing efforts may not be successful.Governments may impose price controls, which may adversely affect our future profitability.We intend to seek approval to market our product candidates in both the United States and in foreign jurisdictions. If we obtain approval in one or moreforeign jurisdictions, we will be subject to rules and regulations in those jurisdictions relating to our product candidates. In some foreign countries,particularly in the European Union, the pricing of prescription pharmaceuticals is subject to governmental control. In these countries, pricing negotiationswith governmental authorities can take considerable time after the receipt of marketing approval for a product candidate. If reimbursement of our futureproducts is unavailable or limited in scope or amount, or if pricing is set at unsatisfactory levels, we may be unable to achieve or sustain profitability.Risks Related to Our Business OperationsNegative public opinion and increased regulatory scrutiny of gene therapy and genetic research may damage public perception of our product candidatesor adversely affect our ability to conduct our business or obtain marketing approvals for our product candidates.Public perception may be influenced by claims that gene therapy is unsafe, and gene therapy may not gain the acceptance of the public or the medicalcommunity. In particular, our success will depend upon physicians specializing in the treatment of those diseases that our product candidates targetprescribing treatments that involve the use of our product candidates in lieu of, or in addition to, existing symptomatic treatments they are already familiarwith and for which greater clinical data may be available.More restrictive government regulations or negative public opinion would have a negative effect on our business or financial condition and may delay orimpair the development and commercialization of our product candidates or demand for any products we may develop. For example, in 2003, trials usingearly versions of murine gamma-retroviral vectors, which integrate with, and thereby alter, the host cell’s DNA, have led to several well-publicized adverseevents, including reported cases of leukemia. Although none of our current product candidates utilize murine gamma-retroviral vectors, our productcandidates use a viral delivery system. Adverse events in our clinical trials, even if not ultimately attributable to our product candidates, and the resultingpublicity could result in increased governmental regulation, unfavorable public perception, potential regulatory delays in the testing or approval of ourproduct candidates, stricter labeling requirements for those product candidates that are approved and a decrease in demand for any such product candidates.Although none of our current product candidates utilize the gamma-retroviruses used in the 2003 studies, our product candidates do use a viral vectordelivery system. The risk of cancer remains a concern for gene therapy and we cannot assure that it will not occur in any of our future clinical studies. Inaddition, there is the potential risk of delayed adverse events following exposure to gene therapy products due to persistent biological activity of the geneticmaterial or other components of products used to carry the genetic material.Adverse events in our clinical trials or those conducted by other parties, even if not ultimately attributable to our product candidates, and the resultingpublicity could result in increased governmental regulation, unfavorable public perception, potential regulatory delays in the testing or approval of ourpotential product candidates, stricter labeling requirements for those product candidates that are approved and a decrease in demand for any such productcandidates. If any such adverse events occur, development and commercialization of our product candidates or advancement of any potential clinical trialscould be halted or delayed, which would have a material adverse effect on our business and operations.36 We are dependent on the services of our key executives and scientific staff, and if we are not able to retain these members of our management or recruitadditional management, clinical and scientific personnel, our business will suffer.We are dependent on the principal members of our management and scientific staff. The loss of service of any of our management could harm our business. Inaddition, we are dependent on our continued ability to attract, retain and motivate highly qualified additional management, clinical and scientific personnel.If we are not able to retain our management, and to attract, on acceptable terms, additional qualified personnel necessary for the continued development ofour business, we may not be able to sustain our operations or grow. Although we have executed employment agreements with each member of our currentexecutive management team, these agreements are terminable at will with or without notice and, therefore, we may not be able to retain their services asexpected.We will need to expand and effectively manage our managerial, operational, financial, and other resources in order to successfully pursue our developmentand commercialization efforts. Our success also depends on our continued ability to attract, retain and motivate highly qualified management and scientificpersonnel. We may not be able to attract or retain qualified management and scientific and clinical personnel in the future due to the intense competition forqualified personnel among biotechnology, pharmaceutical and other businesses, particularly in the San Francisco Bay Area. Our industry has experienced ahigh rate of turnover of management and scientific personnel in recent years. If we are not able to attract, retain and motivate necessary personnel toaccomplish our business objectives, we may experience constraints that will significantly impede the achievement of our development objectives, our abilityto raise additional capital and our ability to implement our business strategy.Paul B. Cleveland joined as our President and Chief Executive Officer in December 2015. In addition, as recently announced, upon the completion of theproposed Transaction with Annapurna, Amber Salzman, Ph.D., president and chief executive officer of Annapurna, will become our President, and CarloRusso, M.D, chief medical officer and head of development at Annapurna, will become our Chief Medical Officer. We also continue to search for a permanentChief Financial Officer. Our future performance will depend, in part, on our ability to successfully integrate newly hired executive officers, including Mr.Cleveland, any newly hired Chief Financial Officer, and, if the Transaction is completed, Drs. Salzman and Russo, into our management team and our abilityto develop an effective working relationship among senior management. Our failure to integrate these individuals and create effective working relationshipsamong them and other members of management could result in inefficiencies in the development and commercialization of our product candidates, harmingfuture regulatory approvals, sales of our product candidates and our results of operations. Moreover, if the Transaction is consummated, Drs. Salzman andRusso would be based in Annapurna’s Philadelphia office, and their location outside of our Menlo Park headquarters may make their integration into ourorganization more challenging.Additionally, we do not currently maintain “key person” life insurance on the lives of our executives or any of our employees. This lack of insurance meansthat we may not have adequate compensation for the loss of the services of these individuals.If we fail to effectively integrate our new executive officers into our organization, the future development and commercialization of our product candidatesmay suffer, harming future regulatory approvals, sales of our product candidates or our results of operations.Our current management team has only been working together for a relatively short period of time and some of our current management team, including ChiefExecutive Officer Paul B. Cleveland, have been employed by us for less than a year. Moreover, as recently announced, upon the completion of the proposedTransaction with Annapurna, Amber Salzman, Ph.D., president and chief executive officer of Annapurna, will become our President, and Carlo Russo, M.D,chief medical officer and head of development at Annapurna, will become our Chief Medical Officer. We also continue to search for a permanent ChiefFinancial Officer. In addition, we may continue to expand our management team in the future. Our future performance will depend, in part, on our ability tosuccessfully integrate recently and subsequently hired executive officers into our management team and their ability to develop and maintain an effectiveworking relationship. Our failure to integrate these individuals with other members of management could result in inefficiencies in the development andcommercialization of our product candidates, harming future regulatory approvals, sales of our product candidates and our results of operations. Moreover, ifthe Transaction is consummated, Drs. Salzman and Russo would be based in Annapurna’s Philadelphia office, and their location outside of our Menlo Parkheadquarters may make their integration into our organization more challenging. In addition to the competition for personnel, the San Francisco Bay Area inparticular is characterized by a high cost of living. As such, we could have difficulty attracting experienced personnel to our company and may be required toexpend significant financial resources in our employee recruitment and retention efforts.We may encounter difficulties in managing our growth and expanding our operations successfully.We had 54 full-time employees as of February 29, 2016. We may need to grow our organization, or certain functions within our organization, substantially tocontinue development and pursue the potential commercialization of our product candidates, as well as function as a public company. As we seek to advanceour product candidates, we may need to expand our financial, development,37 regulatory, manufacturing, marketing and sales capabilities or contract with third parties to provide these capabilities for us. As our operations expand, weexpect that we will need to manage additional relationships with various strategic partners, suppliers and other third parties. Future growth will imposesignificant added responsibilities on members of management and require us to retain or otherwise manage additional internal capabilities. Our futurefinancial performance and our ability to commercialize our product candidates and to compete effectively will depend, in part, on our ability to manage anyfuture growth effectively. To that end, we must be able to manage our development efforts and clinical trials effectively and hire, train and integrate anyadditional management, clinical and regulatory, financial, administrative and sales and marketing personnel. We may not be able to accomplish these tasks,and our failure to so accomplish could prevent us from successfully growing our company.If we fail to comply with applicable state and federal healthcare laws, we may be subject to civil or criminal penalties and/or exclusion from federaland/or healthcare programs.In addition to FDA restrictions on the marketing of pharmaceutical products, several other types of state and federal healthcare fraud and abuse laws havebeen applied in recent years to restrict certain marketing practices in the pharmaceutical industry. These laws include anti-kickback, false claims, physicianpayment transparency and privacy and security laws and regulations. Because of the breadth of these laws and the narrowness of the safe harbors, it ispossible that some of our business activities could be subject to challenge under one or more of these laws.The federal Anti-Kickback Statute prohibits, among other things, knowingly and willfully offering, paying, soliciting or receiving remuneration to induce, orin return for, purchasing, leasing, ordering or arranging for the purchase, lease or order of any healthcare item or service reimbursable under Medicare,Medicaid or other federally financed healthcare programs. Remuneration has been broadly defined to include anything of value, including cash, improperdiscounts, and free or reduced price items and services. This statute has been interpreted to apply to arrangements between pharmaceutical manufacturers onthe one hand and prescribers, purchasers and formula managers on the other. Although there are several statutory exemptions and regulatory safe harborsprotecting certain common activities from prosecution, the exemptions and safe harbors are drawn narrowly, and practices that involve remunerationintended to induce prescribing, purchasing or recommending may be subject to scrutiny if they do not qualify for an exemption or safe harbor. Many stateshave similar laws that apply to their state health care programs as well as private payers.The federal Health Insurance Portability and Accountability Act of 1996 (HIPAA) created new federal criminal statutes that prohibit among other actions,knowingly and willfully executing, or attempting to execute, a scheme to defraud any healthcare benefit program, including private third-party payers,knowingly and willfully embezzling or stealing from a healthcare benefit program, willfully obstructing a criminal investigation of a healthcare offense, andknowingly and willfully falsifying, concealing or covering up a material fact or making any materially false, fictitious or fraudulent statement in connectionwith the delivery of or payment for healthcare benefits, items or services. The Affordable Care Act, among other things, amended the intent requirement of thefederal Anti-Kickback Statute and certain criminal statute governing healthcare fraud statutes. A person or entity no longer needs to have actual knowledgeof the statute or specific intent to violate it. In addition, the Affordable Care Act provided that the government may assert that a claim including items orservices resulting from a violation of the federal Anti-Kickback Statute constitutes a false or fraudulent claim for purposes of the False Claims Act.Additionally, the False Claims Act prohibits knowingly presenting or causing the presentation of a false, fictitious or fraudulent claim for payment to the U.S.government. Actions under the False Claims Act may be brought by the Attorney General or as a qui tam action by a private individual in the name of thegovernment. Violations of the False Claims Act can result in significant monetary penalties and treble damages. The federal government is using the FalseClaims Act, and the accompanying threat of significant liability, in its investigation and prosecution of pharmaceutical and biotechnology companiesthroughout the country, for example, in connection with the promotion of products for unapproved uses and other sales and marketing practices. Thegovernment has obtained multi-million and multi-billion dollar settlements under the False Claims Act in addition to individual criminal convictions underapplicable criminal statutes. Given the significant size of actual and potential settlements, it is expected that the government will continue to devotesubstantial resources to investigating healthcare providers’ and manufacturers’ compliance with applicable fraud and abuse laws.In addition, there has been a recent trend of increased federal and state regulation of payments made to physicians and other healthcare providers. TheAffordable Care Act, among other things, imposes new reporting requirements on drug manufacturers for payments made by them to physicians and teachinghospitals, as well as ownership and investment interests held by physicians and their immediate family members. Failure to submit required information mayresult in civil monetary penalties of up to an aggregate of $150,000 per year (or up to an aggregate of $1 million per year for “knowing failures”), for allpayments, transfers of value or ownership or investment interests that are not timely, accurately and completely reported in an annual submission. Certainstates also mandate implementation of commercial compliance programs, impose restrictions on drug manufacturer marketing practices and/or require thetracking and reporting of gifts, compensation and other remuneration to physicians.In the course of conducting our business, we may also obtain certain confidential patient health information including retinal scans from subjectsparticipating in our clinical trials. In the event of an inadvertent disclosure or security breach, we could be subject to38 enforcement measures, including civil and criminal penalties and fines for violations of state and federal privacy or security standards, such as HIPAA, asamended by the Health Information Technology for Economic and Clinical Health Act of 2009 (HITECH), and their respective implementing regulations.Additionally, certain states have adopted comparable privacy and security laws and regulations, some of which may be more stringent than HIPAA. HIPAA,HITECH and comparable state laws and regulations will be subject to interpretation by various courts and other governmental authorities, thus creatingpotentially complex compliance issues for us and our future customers and strategic partners. Any liability from failure to comply with the requirements ofthese laws, to the extent such requirements are deemed to apply to our operations, could adversely affect our financial condition. The costs of complying withprivacy and security related legal and regulatory requirements are burdensome and could have a material adverse effect on our results of operations.The need to build and maintain a robust compliance program with different compliance and/or reporting requirements increases the possibility that ahealthcare company may violate one or more of the requirements. If our operations are found to be in violation of any of such laws or any other governmentalregulations that apply to us, we may be subject to penalties, including, without limitation, civil and criminal penalties, damages, fines, the curtailment orrestructuring of our operations, exclusion from participation in federal and state healthcare programs and imprisonment, any of which could adversely affectour ability to operate our business and our financial results.We and our development partners, third-party manufacturer and suppliers use biological materials and may use hazardous materials, and any claimsrelating to improper handling, storage or disposal of these materials could be time consuming or costly.We and our development partners, third-party manufacturer and suppliers may use hazardous materials, including chemicals and biological agents andcompounds that could be dangerous to human health and safety or the environment. Our operations and the operations of our third-party manufacturers andsuppliers also produce hazardous waste products. Federal, state and local laws and regulations govern the use, generation, manufacture, storage, handling anddisposal of these materials and wastes. Compliance with applicable environmental laws and regulations may be expensive, and current or futureenvironmental laws and regulations may impair our product development efforts. In addition, we cannot entirely eliminate the risk of accidental injury orcontamination from these materials or wastes. We do not carry specific biological or hazardous waste insurance coverage, and our property, casualty andgeneral liability insurance policies specifically exclude coverage for damages and fines arising from biological or hazardous waste exposure orcontamination. Accordingly, in the event of contamination or injury, we could be held liable for damages or be penalized with fines in an amount exceedingour resources, and our clinical trials or regulatory approvals could be suspended.If product liability lawsuits are brought against us, we may incur substantial liabilities and may be required to limit commercialization of our otherproduct candidates.We face an inherent risk of product liability as a result of the clinical testing of our product candidates and will face an even greater risk if we commercializeour product candidates. For example, we may be sued if our product candidates allegedly caused or cause injury or are found to be otherwise unsuitableduring product testing, manufacturing, marketing or sale. Any such product liability claims may include allegations of defects in manufacturing, defects indesign, a failure to warn of dangers inherent in the product candidate, negligence, strict liability and a breach of warranties. Claims could also be assertedunder state consumer protection acts.If we cannot successfully defend ourselves against product liability claims, we may incur substantial liabilities or be required to limit or cease thecommercialization of our product candidates. Even a successful defense would require significant financial and management resources. Regardless of themerits or eventual outcome, liability claims may result in: ·decreased demand for our product candidates; ·injury to our reputation; ·withdrawal of clinical trial participants; ·costs to defend the related litigation; ·a diversion of management’s time and our resources; ·substantial monetary awards to trial participants or patients; ·product recalls, withdrawals or labeling, marketing or promotional restrictions; ·loss of revenue; ·the inability to commercialize our product candidates; and ·a decline in our stock price.39 We currently hold $5 million in product liability insurance, which may not adequately cover all liabilities that we may incur. We may not be able to maintaininsurance coverage at a reasonable cost or in an amount adequate to satisfy any liability that may arise. Our inability to obtain and retain sufficient productliability insurance at an acceptable cost to protect against potential product liability claims could prevent or inhibit the commercialization of our productcandidates. Although we plan to maintain such insurance, any claim that may be brought against us could result in a court judgment or settlement in anamount that is not covered, in whole or in part, by our insurance or that is in excess of the limits of our insurance coverage. Our insurance policies will alsohave various exclusions, and we may be subject to a product liability claim for which we have no coverage. We may have to pay any amounts awarded by acourt or negotiated in a settlement that exceed our coverage limitations or that are not covered by our insurance, and we may not have, or be able to obtain,sufficient capital to pay such amounts.We and any of our future development partners will be required to report to regulatory authorities if any of our approved products cause or contribute toadverse medical events, and any failure to do so would result in sanctions that would materially harm our business.If we and any of our future development partners or CROs are successful in commercializing our products, the FDA and foreign regulatory authorities wouldrequire that we and any of our future development partners report certain information about adverse medical events if those products may have caused orcontributed to those adverse events. The timing of our obligation to report would be triggered by the date we become aware of the adverse event as well asthe nature of the event. We and any of our future development partners may fail to report adverse events we become aware of within the prescribed timeframe.We and any of our future development partners may also fail to appreciate that we have become aware of a reportable adverse event, especially if it is notreported to us as an adverse event or if it is an adverse event that is unexpected or removed in time from the use of our products. If we and any of our futuredevelopment partners fail to comply with our reporting obligations, the FDA or a foreign regulatory authority could take action, including criminalprosecution, the imposition of civil monetary penalties, seizure of our products or delay in approval or clearance of future products.Our internal computer systems, or those of our development partners, third-party clinical research organizations or other contractors or consultants, mayfail or suffer security breaches, which could result in a material disruption of our product development programs.Despite the implementation of security measures, our internal computer systems and those of our current and any future CROs and other contractors,consultants and collaborators are vulnerable to damage from computer viruses, unauthorized access, natural disasters, terrorism, war and telecommunicationand electrical failures. While we have not experienced any such material system failure, accident or security breach to date, if such an event were to occur andcause interruptions in our operations, it could result in a material disruption of our development programs and our business operations, whether due to a lossof our trade secrets or other similar disruptions. For example, the loss of clinical trial data from completed or future clinical trials could result in delays in ourregulatory approval efforts and significantly increase our costs to recover or reproduce the data. Likewise, we rely on third parties to manufacture our productcandidates and conduct clinical trials, and similar events relating to their computer systems could also have a material adverse effect on our business. To theextent that any disruption or security breach were to result in a loss of, or damage to, our data or applications, or inappropriate disclosure of confidential orproprietary information, we could incur liability and the further development and commercialization of our product candidate could be delayed.Business disruptions could seriously harm our future revenue and financial condition and increase our costs and expenses.Our operations could be subject to earthquakes, power shortages, telecommunications failures, water shortages, floods, hurricanes, typhoons, fires, extremeweather conditions, medical epidemics and other natural or manmade disasters or business interruptions, for which we are predominantly self-insured. We relyon third-party manufacturers to produce our product candidates. Our ability to obtain clinical supplies of our product candidates could be disrupted if theoperations of these suppliers are affected by a man-made or natural disaster or other business interruption. The occurrence of any of these business disruptionscould seriously harm our operations and financial condition and increase our costs and expenses.40 Our employees, independent contractors, principal investigators, CROs, consultants and vendors may engage in misconduct or other improper activities,including noncompliance with regulatory standards and requirements.We are exposed to the risk that our employees, independent contractors, principal investigators, CROs, consultants and vendors may engage in fraudulentconduct or other illegal activity. Misconduct by these parties could include intentional, reckless and/or negligent conduct or disclosure of unauthorizedactivities to us that violates: (1) FDA regulations, including those laws requiring the reporting of true, complete and accurate information to regulatoryauthorities, (2) manufacturing standards, (3) federal and state health care fraud and abuse laws and regulations or (4) laws that require the reporting offinancial information or data accurately. Specifically, sales, marketing, and business arrangements in the health care industry are subject to extensive lawsand regulations intended to prevent fraud, kickbacks, self-dealing and other abusive practices. These laws and regulations may restrict or prohibit a widerange of pricing, discounting, marketing and promotion, sales commission, customer incentive programs and other business arrangements. Activities subjectto these laws also involve improper use of information obtained in the course of clinical trials, which could result in regulatory sanctions and serious harm toour reputation. It is not always possible to identify and deter misconduct by employees and other third parties, and the precautions we take to detect andprevent this activity may not be effective in controlling unknown or unmanaged risks or losses or in protecting us from governmental investigations or otheractions or lawsuits stemming from a failure to be in compliance with such laws or regulations. If any such actions are instituted against us, and we are notsuccessful in defending ourselves or asserting our rights, those actions could have a significant impact on our business, including the imposition of civil,criminal and administrative penalties, damages, monetary fines, possible exclusion from participation in Medicare, Medicaid and other federal healthcareprograms, contractual damages, reputational harm, diminished profits and future earnings, and curtailment of our operations, any of which could adverselyaffect our ability to operate our business and our results of operations.Risks Relating to Our Intellectual PropertyOur rights to develop and commercialize our product candidates are subject in part to the terms and conditions of licenses granted to us by othercompanies and universities.We currently are heavily reliant upon licenses of certain patent rights and proprietary technology from third parties that is important or necessary to thedevelopment of our technology and products, including technology related to our manufacturing process and our gene therapy product candidates. Theseand other licenses may not provide adequate rights to use such intellectual property and technology in all relevant fields of use and in all territories in whichwe may wish to develop or commercialize our technology and products in the future. For example, the license granted to us by the Regents to make, havemade, use, offer for sale, import, export and sell products covered by certain patent rights licensed to us under our agreement with the Regents is limited tothe United States. The license is also limited to the Regents’ interest in the licensed patent rights which are co-owned by Chiron Corporation (Chiron). As aresult, we may not be able to prevent competitors from developing and commercializing competitive products in territories not included in our licenses topatents.Licenses to additional third-party technology that may be required for our development programs may not be available in the future or may not be availableon commercially reasonable terms, which could have a material adverse effect on our business and financial condition.In some circumstances, we may not have the right to control the preparation, filing and prosecution of patent applications, or to maintain the patents,covering technology that we license from third parties. In addition, we must obtain consent from the Regents before we can enforce patent rights licensed tous by the Regents. While such consent may not be unreasonably withheld, the Regents may withhold such consent or may not provide it on a timely basis.Therefore, we cannot be certain that these patents and applications will be prosecuted and enforced in a manner consistent with the best interests of ourbusiness. In addition, if third parties who license patents to us fail to maintain such patents, or lose rights to those patents, the rights we have licensed may bereduced or eliminated.The patent rights subject to our exclusive license with the Regents are jointly owned by Chiron Corporation.We currently have a license to the Regents’ undivided interest in certain patent rights relating to the use of recombinant gene delivery vectors for treating orpreventing diseases of the eye. The licensed patent rights are jointly owned by the Regents and Chiron but our license extends only the Regents’ interest insuch patent rights. As a result, Chiron has a right to develop and commercialize products and technology using these patent rights, and to license to thirdparties the right to do so. This may lead to the development and commercialization of products and technology by others that are based on technologysimilar to our gene therapy platform, which may impair our competitive position in the marketplace and have an adverse impact on our business.Joint ownership of these patent rights may also limit our ability to effectively enforce our rights in these patents against alleged infringers. First, Chiron maybe required to participate in any potential suit against such third party infringers but may not agree to do so. Additionally, Chiron may choose to license itsinterest in these patent rights to any such infringers without our consent in certain countries. Further, Chiron’s joint ownership may limit the Regents’ abilityto prosecute related patent rights in foreign jurisdictions without the cooperation of Chiron. As a result, our business may be adversely impaired.41 Our success depends on our ability to protect our intellectual property and our proprietary technologies.Our commercial success depends in part on our ability to obtain and maintain patent protection and trade secret protection for our product candidates,proprietary technologies, and their uses as well as our ability to operate without infringing upon the proprietary rights of others. There can be no assurancethat our patent applications or those of our licensors will result in additional patents being issued or that issued patents will afford sufficient protectionagainst competitors with similar technology, nor can there be any assurance that the patents issued will not be infringed, designed around or invalidated bythird parties. Even issued patents may later be found unenforceable or may be modified or revoked in proceedings instituted by third parties before variouspatent offices or in courts. The degree of future protection for our proprietary rights is uncertain. Only limited protection may be available and may notadequately protect our rights or permit us to gain or keep any competitive advantage. This failure to properly protect the intellectual property rights relatingto our product candidates could have a material adverse effect on our financial condition and results of operations.Composition-of-matter patents on the biological or chemical active pharmaceutical ingredient are generally considered to be the strongest form ofintellectual property protection for pharmaceutical products, as such patents provide protection without regard to any method of use. We cannot be certainthat the claims in our patent applications covering composition-of-matter of any of our product candidates will be considered patentable by the United StatesPatent and Trademark Office (USPTO) and courts in the United States or by the patent offices and courts in foreign countries, nor can we be certain that theclaims in our issued composition-of-matter patents will not be found invalid or unenforceable if challenged.We have an issued method-of-use patent in the United States that encompasses AVA-101. Method-of-use patents protect the use of a product for the specifiedmethod or for treatment of a particular indication. However, this type of patent does not prevent a competitor from making and marketing a product that isidentical to our product for an indication that is outside the scope of the patented method. Moreover, even if competitors do not actively promote theirproduct for our targeted indications, physicians may prescribe these products “off-label.” Although off-label prescriptions may infringe or contribute to theinfringement of method-of-use patents, the practice is common and such infringement is difficult to prevent or prosecute.The patent application process is subject to numerous risks and uncertainties, and there can be no assurance that we or any of our future development partnerswill be successful in protecting our product candidates by obtaining and defending patents. These risks and uncertainties include the following: ·the USPTO and various foreign governmental patent agencies require compliance with a number of procedural, documentary, fee payment andother provisions during the patent process. There are situations in which noncompliance can result in abandonment or lapse of a patent orpatent application, resulting in partial or complete loss of patent rights in the relevant jurisdiction. In such an event, competitors might be ableto enter the market earlier than would otherwise have been the case; ·patent applications may not result in any patents being issued; ·patents that may be issued or in-licensed may be challenged, invalidated, modified, revoked, circumvented, found to be unenforceable orotherwise may not provide any competitive advantage; ·our competitors, many of whom have substantially greater resources than we do and many of whom have made significant investments incompeting technologies, may seek or may have already obtained patents that will limit, interfere with or eliminate our ability to make, use, andsell our potential product candidates; ·there may be significant pressure on the U.S. government and international governmental bodies to limit the scope of patent protection bothinside and outside the United States for disease treatments that prove successful, as a matter of public policy regarding worldwide healthconcerns; and ·countries other than the United States may have patent laws less favorable to patentees than those upheld by United States courts, allowingforeign competitors a better opportunity to create, develop and market competing product candidates.In addition, we rely on the protection of our trade secrets and proprietary know-how. Although we have taken steps to protect our trade secrets andunpatented know-how, including entering into confidentiality agreements with third parties, and confidential information and inventions agreements withemployees, consultants and advisors, we cannot provide any assurances that all such agreements have been duly executed, and third parties may still obtainthis information or may come upon this or similar information independently.Additionally, if the steps taken to maintain our trade secrets are deemed inadequate, we may have insufficient recourse against third parties formisappropriating our trade secrets. If any of these events occurs or if we otherwise lose protection for our trade secrets or proprietary know-how, the value ofthis information may be greatly reduced.42 Claims by third parties that we infringe their proprietary rights may result in liability for damages or prevent or delay our developmental andcommercialization efforts.The biotechnology industry has been characterized by frequent litigation regarding patent and other intellectual property rights. Numerous U.S. and foreignissued patents and pending patent applications, which are owned by third parties, exist in the fields in which we are developing product candidates. As thebiotechnology industry expands and more patents are issued, the risk increases that our product candidates may be subject to claims of infringement of thepatent rights of third parties. Because patent applications are maintained in secrecy until the application is published, we may be unaware of third partypatents that may be infringed by commercialization of our product candidates. Moreover, because patent applications can take many years to issue, there maybe currently-pending patent applications that may later result in issued patents that our product candidates may infringe. In addition, identification of thirdparty patent rights that may be relevant to our technology is difficult because patent searching is imperfect due to differences in terminology among patents,incomplete databases and the difficulty in assessing the meaning of patent claims. Any claims of patent infringement asserted by third parties would be timeconsuming and could: ·result in costly litigation; ·divert the time and attention of our technical personnel and management; ·cause development delays; ·prevent us from commercializing our product candidates until the asserted patent expires or is held finally invalid or not infringed in a court oflaw; ·require us to develop non-infringing technology, which may not be possible on a cost-effective basis; or ·require us to enter into royalty or licensing agreements, which may not be available on commercially reasonable terms, or at all.Although no third party has asserted a claim of patent infringement against us as of the date of this Annual Report on Form 10-K, others may hold proprietaryrights that could prevent our product candidates from being marketed. Any patent-related legal action against us claiming damages and seeking to enjoincommercial activities relating to our product candidate or processes could subject us to potential liability for damages and require us to obtain a license tocontinue to manufacture or market our product candidates. We cannot predict whether we would prevail in any such actions or that any license requiredunder any of these patents would be made available on commercially acceptable terms, if at all. In addition, we cannot be sure that we could redesign ourproduct candidate or processes to avoid infringement, if necessary. Accordingly, an adverse determination in a judicial or administrative proceeding, or thefailure to obtain necessary licenses, could prevent us from developing and commercializing our product candidates, which could harm our business, financialcondition and operating results.The patent protection and patent prosecution for some of our product candidates may be dependent on third parties.While we normally seek to obtain the right to control the prosecution and maintenance of the patents relating to our product candidates, there may be timeswhen the filing and prosecution activities for platform technology patents that relate to our product candidates are controlled by our licensors. For example,we do not have the right to prosecute and maintain the patent rights licensed to us under agreements with each of the Regents and Virovek Corporation, andour ability to have input into such filing and prosecution activities is limited. If these licensors or any of our future licensors fail to appropriately prosecuteand maintain patent protection for patents covering any of our product candidates or companion diagnostic, our ability to develop and commercialize thoseproduct candidates and companion diagnostic may be adversely affected and we may not be able to prevent competitors from making, using and sellingcompeting products.We may be involved in lawsuits to protect or enforce our patents or the patents of our licensors, which could be expensive, time consuming, andunsuccessful. Further, our issued patents could be found invalid or unenforceable if challenged in court.If we or any of our future development partners were to initiate legal proceedings against a third party to enforce a patent directed at one of our productcandidates, or one of our future product candidates, the defendant could counterclaim that our patent is invalid and/or unenforceable in whole or in part. Inpatent litigation in the United States, defendant counterclaims alleging invalidity and/or unenforceability are commonplace. Grounds for a validitychallenge include an alleged failure to meet any of several statutory requirements, including lack of novelty, obviousness or non-enablement. Grounds for anunenforceability assertion could include an allegation that someone connected with prosecution of the patent withheld relevant information from the USPTOor made a misleading statement during prosecution. Third parties may also raise similar claims before the USPTO, even outside the context of litigation. Theoutcome following legal assertions of invalidity and unenforceability is unpredictable. With respect to the validity question, for example, we cannot becertain 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 legalassertion of invalidity and/or unenforceability, we would lose at least part, and perhaps all, of the patent protection on such product candidate. Such a loss ofpatent protection would have a material adverse impact on our business.43 Interference proceedings provoked by third parties or brought by us or declared by the USPTO may be necessary to determine the priority of inventions withrespect to our patents or patent applications or those of our licensors. An unfavorable outcome could require us to cease using the related technology or toattempt to license rights to it from the prevailing party. Our business could be harmed if the prevailing party does not offer us a license on commerciallyreasonable terms. Our defense of litigation or interference proceedings may fail and, even if successful, may result in substantial costs and distract ourmanagement and other employees. In addition, the uncertainties associated with litigation could have a material adverse effect on our ability to raise thefunds necessary to continue our clinical trials, continue our research programs, license necessary technology from third parties, or enter into development ormanufacturing partnerships that would help us bring our product candidates to market.Even if resolved in our favor, litigation or other legal proceedings relating to our intellectual property rights may cause us to incur significant expenses, andcould distract our technical and management personnel from their normal responsibilities. In addition, there could be public announcements of the results ofhearings, motions or other interim proceedings or developments and if securities analysts or investors perceive these results to be negative, it could have asubstantial adverse effect on the price of our ordinary shares. Such litigation or proceedings could substantially increase our operating losses and reduce theresources available for development activities or any future sales, marketing or distribution activities. We may not have sufficient financial or other resourcesto conduct such litigation or proceedings adequately. Some of our competitors may be able to sustain the costs of such litigation or proceedings moreeffectively than we can because of their greater financial resources. Uncertainties resulting from the initiation and continuation of patent litigation or otherproceedings could compromise our ability to compete in the marketplace.Furthermore, because of the substantial amount of discovery required in connection with intellectual property litigation, there is a risk that some of ourconfidential information could be compromised by disclosure during this type of litigation. There could also be public announcements of the results ofhearings, motions, or other interim proceedings or developments. If securities analysts or investors perceive these results to be negative, it could have amaterial adverse effect on the price of our common stock.Recent patent reform legislation could increase the uncertainties and costs surrounding the prosecution of our patent applications and the enforcement ordefense of our issued patents.On September 16, 2011, the Leahy-Smith America Invents Act (Leahy-Smith Act), was signed into law. The Leahy-Smith Act includes a number of significantchanges to U.S. patent law. These include provisions that affect the way patent applications will be prosecuted and may also affect patent litigation. Inparticular, under the Leahy-Smith Act, the United States transitioned in March 2013 to a “first to file” system in which the first inventor to file a patentapplication will be entitled to the patent. Third parties are allowed to submit prior art before the issuance of a patent by the USPTO, and may becomeinvolved in post-grant proceedings including opposition, derivation, reexamination, inter-partes review or interference proceedings challenging our patentrights or the patent rights of others. An adverse determination in any such submission, proceeding or litigation could reduce the scope or enforceability of, orinvalidate, our patent rights, which could adversely affect our competitive position.We may not be successful in obtaining or maintaining necessary rights to our product candidates through acquisitions and in-licenses.We currently have rights to the intellectual property, through licenses from third parties and under patents that we own, to develop our product candidates.Because our programs may require the use of proprietary rights held by third parties, the growth of our business will likely depend in part on our ability toacquire, in-license, or use these proprietary rights. For example, our product candidates may require specific formulations to work effectively and efficientlyand the rights to these formulations may be held by others. We may be unable to acquire or in-license any compositions, methods of use, processes, or otherthird-party intellectual property rights from third parties that we identify as necessary for our product candidates. The licensing and acquisition of third-partyintellectual property rights is a competitive area, and a number of more established companies are also pursuing strategies to license or acquire third-partyintellectual property rights that we may consider attractive. These established companies may have a competitive advantage over us due to their size, cashresources, and greater clinical development and commercialization capabilities. In addition, companies that perceive us to be a competitor may be unwillingto assign or license rights to us. We also may be unable to license or acquire third-party intellectual property rights on terms that would allow us to make anappropriate return on our investment.We sometimes collaborate with U.S. and foreign academic institutions to accelerate our preclinical research or development under written agreements withthese institutions. Typically, these institutions provide us with an option to negotiate a license to any of the institution’s rights in technology resulting fromthe collaboration. Regardless of such option, we may be unable to negotiate a license within the specified timeframe or under terms that are acceptable to us.If we are unable to do so, the institution may offer the intellectual property rights to other parties, potentially blocking our ability to pursue our program.If we are unable to successfully obtain rights to required third-party intellectual property rights or maintain the existing intellectual property rights we have,we may have to abandon development of that program and our business and financial condition could suffer.44 We may fail to comply with any of our obligations under existing agreements pursuant to which we license or have otherwise acquired intellectualproperty rights or technology, which could result in the loss of rights or technology that are material to our business.Licensing of intellectual property is of critical importance to our business and involves complex legal, business, and scientific issues. Disputes may ariseregarding our rights to intellectual property licensed to us from a third party, including but not limited to: ·the scope of rights granted under the license agreement and other interpretation-related issues; ·the extent to which our technology and processes infringe on intellectual property of the licensor that is not subject to the licensing agreement; ·the sublicensing of patent and other rights; ·our diligence obligations under the license agreement and what activities satisfy those diligence obligations; ·the ownership of inventions and know-how resulting from the creation or use of intellectual property by us, alone or with our licensors andcollaborators; ·the scope and duration of our payment obligations; ·our rights upon termination of such agreement; and ·the scope and duration of exclusivity obligations of each party to the agreement.If disputes over intellectual property and other rights that we have licensed or acquired from third parties prevent or impair our ability to maintain our currentlicensing arrangements on acceptable terms, we may be unable to successfully develop and commercialize the affected product candidates.We may be subject to claims that we have wrongfully hired an employee from a competitor or that we or our employees have wrongfully used or disclosedalleged confidential information or trade secrets of their former employers.As is common in the biotechnology and pharmaceutical industry, in addition to our employees, we engage the services of consultants to assist us in thedevelopment of our product candidates. Many of these employees and consultants, and many of our employees, were previously employed at, or may havepreviously provided or may be currently providing consulting services to, other biotechnology or pharmaceutical companies including our competitors orpotential competitors. We may become subject to claims that our company, our employees or a consultant inadvertently or otherwise used or disclosed tradesecrets or other information proprietary to their former employers or their former or current clients. Litigation may be necessary to defend against these claims.If we fail in defending any such claims, in addition to paying monetary damages, we may lose valuable intellectual property rights or personnel, which couldadversely impact our business. Even if we are successful in defending against these claims, litigation could result in substantial costs and be a distraction toour management team.We may be subject to claims challenging the inventorship or ownership of our patents and other intellectual property.We may also be subject to claims that former employees, collaborators or other third parties have an ownership interest in our patents or other intellectualproperty. We may be subject to ownership disputes in the future arising, for example, from conflicting obligations of consultants or others who are involvedin developing our product candidates. Litigation may be necessary to defend against these and other claims challenging inventorship or ownership. If we failin defending any such claims, in addition to paying monetary damages, we may lose valuable intellectual property rights, such as exclusive ownership of, orright to use, valuable intellectual property. Such an outcome could have a material adverse effect on our business. Even if we are successful in defendingagainst such claims, litigation could result in substantial costs and be a distraction to management and other employees.If we do not obtain patent term extension and data exclusivity for our product candidates, our business may be materially harmed.Depending upon the timing, duration and specifics of FDA marketing approval of our product candidates, one or more of our United States patents may beeligible for limited patent term restoration under the Drug Price Competition and Patent Term Restoration Act of 1984 (Hatch-Waxman Amendments). TheHatch-Waxman Amendments permit a patent restoration term of up to five years as compensation for patent term lost during product development and theFDA regulatory review process. However, we may not be granted an extension because of, for example, failing to apply within applicable deadlines, failing toapply prior to expiration of relevant patents or otherwise failing to satisfy applicable requirements. Moreover, the applicable time period or the scope ofpatent 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 isless than we request, our competitors may obtain approval of competing products following our patent expiration, and our revenue could be reduced,possibly materially.45 If our trademarks and trade names are not adequately protected, then we may not be able to build name recognition in our markets of interest and ourbusiness may be adversely affected.Our registered or unregistered trademarks or trade names may be challenged, infringed, circumvented or declared generic or determined to be infringing onother marks. We may not be able to protect our rights to these trademarks and trade names, which we need to build name recognition among potentialpartners or customers in our markets of interest. At times, competitors may adopt trade names or trademarks similar to ours, thereby impeding our ability tobuild brand identity and possibly leading to market confusion. In addition, there could be potential trade name or trademark infringement claims brought byowners of other registered trademarks or trademarks that incorporate variations of our registered or unregistered trademarks or trade names. Over the longterm, if we are unable to establish name recognition based on our trademarks and trade names, then we may not be able to compete effectively and ourbusiness may be adversely affected. Our efforts to enforce or protect our proprietary rights related to trademarks, trade secrets, domain names, copyrights orother intellectual property may be ineffective and could result in substantial costs and diversion of resources and could adversely impact our financialcondition or results of operations.Changes in U.S. patent law could diminish the value of patents in general, thereby impairing our ability to protect our product candidates.As is the case with other biopharmaceutical companies, our success is heavily dependent on intellectual property, particularly patents. Obtaining andenforcing patents in the biopharmaceutical industry involve a high degree of technological and legal complexity. Therefore, obtaining and enforcingbiopharmaceutical patents is costly, time consuming and inherently uncertain. In addition, Congress may pass patent reform legislation that is unfavorable tous. The Supreme Court has ruled on several patent cases in recent years, either narrowing the scope of patent protection available in certain circumstances orweakening the rights of patent owners in certain situations. In addition to increasing uncertainty with regard to our ability to obtain patents in the future, thiscombination of events has created uncertainty with respect to the value of patents, once obtained. Depending on decisions by the United States Congress, thefederal courts and the USPTO, the laws and regulations governing patents could change in unpredictable ways that would weaken our ability to obtain newpatents or to enforce our existing patents and patents we might obtain in the future.We may not be able to protect our intellectual property rights throughout the world.While we have issued patents directed at AVA-101 in the United States and pending patent applications directed at AVA-101 and other product candidates inthe United States and other countries, filing, prosecuting and defending patents on AVA-101 and our other product candidates in all countries throughout theworld would be prohibitively expensive, and our intellectual property rights in some countries outside the United States can be less extensive than those inthe United States. In addition, the laws of some foreign countries do not protect intellectual property rights to the same extent as federal and state laws in theUnited States. Consequently, we may not be able to prevent third parties from practicing our inventions in all countries outside the United States, or fromselling or importing products made using our inventions in and into the United States or other jurisdictions. Competitors may use our technologies injurisdictions where we have not obtained patent protection to develop their own products and, further, may export otherwise infringing products to territorieswhere we have patent protection but enforcement is not as strong as that in the United States. These products may compete with our product candidates, andour patents or other intellectual property rights may not be effective or sufficient to prevent them from competing.Many companies have encountered significant problems in protecting and defending intellectual property rights in foreign jurisdictions. The legal systemsof certain countries, particularly certain developing countries, do not favor the enforcement of patents and other intellectual property protection, particularlythose relating to biopharmaceuticals, which could make it difficult for us to stop the infringement of our patents or marketing of competing products inviolation of our proprietary rights generally. Proceedings to enforce our patent rights in foreign jurisdictions could result in substantial costs and divert ourefforts and attention from other aspects of our business, could put our patents at risk of being invalidated or interpreted narrowly and our patent applicationsat risk of not issuing and could provoke third parties to assert claims against us. We may not prevail in any lawsuits that we initiate, and the damages or otherremedies awarded, if any, may not be commercially meaningful. Accordingly, our efforts to enforce our intellectual property rights around the world may beinadequate to obtain a significant commercial advantage from the intellectual property that we develop or license.46 Intellectual property rights do not necessarily address all potential threats to our competitive advantage.The degree of future protection afforded by our intellectual property rights is uncertain because intellectual property rights have limitations, and may notadequately protect our business or permit us to maintain our competitive advantage. For example: ·others may be able to make gene therapies that are similar to our product candidates but that are not covered by the claims of the patents thatwe own or have exclusively licensed; ·we or our licensors or future collaborators might not have been the first to make the inventions covered by the issued patent or pending patentapplication that we own or have exclusively licensed; ·we or our licensors or future collaborators might not have been the first to file patent applications covering certain of our inventions; ·others may independently develop similar or alternative technologies or duplicate any of our technologies without infringing our intellectualproperty rights; ·it is possible that our pending patent applications will not lead to issued patents; ·issued patents that we own or have exclusively licensed may be held invalid or unenforceable, as a result of legal challenges by ourcompetitors; ·our competitors might conduct research and development activities in countries where we do not have patent rights and then use theinformation learned from such activities to develop competitive products for sale in our major commercial markets; ·we may not develop additional proprietary technologies that are patentable; and ·the patents of others may have an adverse effect on our business.Should any of these events occur, they could significantly harm our business, results of operations and prospects.Risks Related to Our Common StockWe previously identified and have remediated a material weakness in our internal control over financial reporting. If we fail to maintain proper andeffective internal control over financial reporting in the future, our ability to prepare accurate and timely consolidated financial statements beingprepared in accordance with U.S. generally accepted accounting principles (U.S. GAAP) could be impaired, which could harm our operating results,investors’ views of us and, as a result, the value of our common stock.Pursuant to Section 404 of the Sarbanes-Oxley Act of 2002, our management will be required to report upon the effectiveness of our internal control overfinancial reporting beginning with the annual report for our fiscal year ending December 31, 2015. When we lose our status as an “emerging growthcompany” and if we reach an accelerated filer threshold, our independent registered public accounting firm will also be required to attest to the effectivenessof our internal control over financial reporting, and the related report will also be required to be included in our annual reports filed with the SEC. However,for so long as we remain an emerging growth company and also not an accelerated filer, we intend to take advantage of an exemption available to companiesmeeting these criteria from these auditor attestation requirements. Section 404 of the Sarbanes-Oxley Act of 2002 compliance requirements are complex andrequire significant documentation, testing, and possible remediation. If we (or our auditors if they are required to assess and attest to the effectiveness of ourinternal control over financial reporting) are unable to conclude that our internal control over financial reporting is effective, investors may lose confidencein our financial reporting, and the trading price of our common stock may decline.Our management previously identified deficiencies in our internal control over financial reporting that constituted a material weakness in our internal controlover financial reporting as of December 31, 2013 and which related to the design and operation of our control environment. A material weakness is adeficiency, or a combination of deficiencies, in internal control over financial reporting such that there is a reasonable possibility that a materialmisstatement of the Company’s annual or interim consolidated financial statements will not be prevented or detected on a timely basis. As of December 31,2013, we did not maintain an effective control environment, which is the foundation for effective internal control over financial reporting, as evidenced by:(i) an insufficient number of personnel to perform control monitoring activities, (ii) an insufficient number of personnel with an appropriate level ofknowledge of U.S. GAAP to determine that our consolidated financial statements were properly prepared in accordance with U.S. GAAP, (iii) insufficientmanagement involvement to identify and resolve errors in recording transactions and (iv) inadequate processes for the preparation and review of ourconsolidated financial statements.47 Subsequent to the identification of the material weakness, we hired an experienced Chief Financial Officer, Corporate Controller and additional skilledaccounting and finance staff members, formalized and implemented our accounting policies and internal controls and the related documentation andstrengthened our accounting systems, financial statements review procedures and the supervisory reviews by our management that are performed during thefinancial close process and which support the accurate and timely preparation of consolidated financial statements that are fairly presented in accordancewith US GAAP. These improvements to our internal control infrastructure were implemented during 2014, and were in place in connection with thepreparation of our consolidated financial statements for the year ended December 31, 2014.Although we have determined that our internal control over financial reporting was effective as of December 31, 2014 we cannot assure you that there willnot be material weaknesses or significant deficiencies in our internal control over financial reporting in the future. Any failure to maintain internal controlover financial reporting could severely inhibit our ability to accurately report our financial condition, results of operations or cash flows. If we are unable toconclude that our internal control over financial reporting is effective, or if our independent registered public accounting firm determines we have a materialweakness or significant deficiency in our internal control over financial reporting, we could lose investor confidence in the accuracy and completeness of ourfinancial reports, the market price of our common stock could decline, and we could be subject to sanctions or investigations by The NASDAQ Stock Market,the Securities and Exchange Commission (SEC) or other regulatory authorities. Failure to implement and maintain effective internal control over financialreporting, including failure to remediate any material weaknesses we or our auditors identify, could also restrict our future access to the capital markets.An active public market for our common stock may not persist.We completed our initial public offering (IPO) on August 5, 2014 and our follow-on offering on January 13, 2015. Prior to the IPO, there had been no publicmarket for shares of our common stock, and an active public market for our shares may not persist. The lack of an active market may impair our stockholders’ability to sell their shares at the time they wish to sell them or at a price they consider reasonable. The lack of an active market may also impair our ability toraise capital by selling shares and may impair our ability to acquire other businesses, applications or technologies using our shares as consideration.The trading price of the shares of our common stock has been and could continue to be highly volatile, and purchasers of our common stock could incursubstantial losses.Our stock price has been and is likely to continue to be volatile. The stock market in general and the market for biotechnology companies in particular haveexperienced extreme volatility that has often been unrelated to the operating performance of particular companies. The market price for our common stockmay be influenced by many factors, including those discussed in this “Risk Factors” section of this Annual Report on Form 10-K and others such as: ·announcements related to the Transaction; ·securities or industry analysts’ and investors’ perception of the Transaction; ·our plans regarding further development of AVA-101; ·our ability to enroll subjects in any clinical trials that we plan in the future; ·results of any clinical trials, and the results of trials of our competitors or those of other companies in our market sector; ·regulatory developments in the United States and foreign countries; ·variations in our financial results or those of companies that are perceived to be similar to us; ·changes in the structure of healthcare payment systems, especially in light of current reforms to the U.S. healthcare system; ·announcements by us or our competitors of significant acquisitions, strategic partnerships, joint ventures or capital commitments; ·market conditions in the pharmaceutical and biotechnology sectors and issuance of securities analysts’ reports or recommendations; ·sales of our stock by insiders and stockholders; ·trading volume of our common stock; ·general economic, industry and market conditions other events or factors, many of which are beyond our control;48 ·additions or departures of key personnel; and ·intellectual property, product liability or other litigation against us.In addition, in the past, stockholders have initiated class action lawsuits against biotechnology and pharmaceutical companies following periods of volatilityin the market prices of these companies’ stock, and similar litigation has been instituted against us. Such litigation could cause us to incur substantial costsand divert management’s attention and resources, which could have a material adverse effect on our business, financial condition and results of operations.We and certain of our officers have been named defendants in purported securities class action lawsuits. These, and any additional securities litigation,could result in substantial losses and may divert management’s time and attention from our business.On June 15, 2015, we announced the top-line results of our Phase 2a clinical trial for AVA-101. In July 2015, three purported securities class action lawsuitswere commenced in the United States District Court for the Northern District of California, naming as defendants us and certain of our officers. These lawsuitsassert that the defendants violated the Exchange Act and Securities Act and allege that the defendants made materially false and misleading statements andomitted allegedly material information related to, among other things, the Phase 2a clinical trial for AVA-101 and the prospects of AVA-101. The plaintiffsseek unspecified damages, attorneys’ fees and other costs, each on behalf of a purported class of persons and entities who purchased or otherwise acquired ourpublicly traded securities between July 31, 2014 and June 15, 2015. It is possible that additional suits will be filed with respect to these same matters and alsonaming us and/or our officers and directors as defendants.In addition, in December 2015, a putative securities class action lawsuit was filed against us, our board of directors, underwriters of our January 13, 2015,follow-on public stock offering, and two of our institutional stockholders, in the Superior Court of the State of California for the County of San Mateo. Thecomplaint alleges that, in connection with our follow-on stock offering, the defendants violated the Securities Act of 1933, as amended, by allegedly makingmaterially false and misleading statements and by allegedly omitting material information related to the Phase 2a clinical trial for AVA-101 and the prospectsof AVA-101. The complaint seeks unspecified compensatory and rescissory damages, attorneys’ fees and other costs.We believe that we have meritorious defenses and intend to defend these lawsuits vigorously. However, the outcomes of these lawsuits are necessarilyuncertain, and we may not prevail. In addition, while we have various insurance policies related to the risks associated with our business, including directors’and officers’ liability insurance policies, there is no assurance that our insurance coverage, which contains a self-insured retention, will be sufficient or thatour insurance carriers will cover all claims or litigation costs. Accordingly, we could be forced to expend significant resources in the defense of these suits. Atthis time, we are not able to estimate the possible costs to us from these matters, as these lawsuits are currently at an early stage and we cannot be certain howlong it may take to resolve these matters or the possible amount of any damages that we may be required to pay. It is possible that we could, in the future,incur judgments or enter into settlements of claims for monetary damages. Decisions adverse to our interests in these actions could subject us to significantliabilities and could have a material adverse effect on our business, financial condition and results of operations. In addition, the uncertainty of the currentlypending litigation could lead to more volatility in our stock price. If our stock price continues to experience volatility, we may be the subject of additionalsecurities litigation in the future.The current securities litigation and any future litigation of this type could result in diversion of management’s attention and resources, which couldadversely impact our business. Monitoring and defending against legal actions is time-consuming for our management and detracts from our ability to focusfully on our business activities.Our quarterly operating results may fluctuate significantly.We expect our operating results to be subject to quarterly fluctuations. Our net loss and other operating results will be affected by numerous factors,including: ·the successful completion of the Transaction; ·variations in the level of expenses related to our clinical trial and development programs; ·addition or termination of clinical trials; ·any intellectual property infringement lawsuit in which we may become involved; ·regulatory developments affecting our product candidates; ·our execution of any collaborative, licensing or similar arrangements and the timing of payments we may make or receive under thesearrangements;49 ·nature and terms of stock-based compensation grants; and ·derivative instruments recorded at fair value.If our quarterly operating results fall below the expectations of investors or securities analysts, the price of our common stock could decline substantially.Furthermore, any quarterly fluctuations in our operating results may, in turn, cause the price of our stock to fluctuate substantially.Our failure to meet the continued listing requirements of The NASDAQ Global Market could result in a delisting of our common stock.If we fail to satisfy the continued listing requirements of The NASDAQ Global Market, such as the corporate governance requirements or the minimumclosing bid price requirement, NASDAQ may take steps to de-list our common stock. Such a delisting would likely have a negative effect on the price of ourcommon stock and would impair your ability to sell or purchase our common stock when you wish to do so. In the event of a delisting, we would expect totake actions to restore our compliance with NASDAQ’s listing requirements, but we can provide no assurance that any such action taken by us would allowour common stock to become listed again, stabilize the market price or improve the liquidity of our common stock, prevent our common stock from droppingbelow the NASDAQ minimum bid price requirement or prevent future non-compliance with NASDAQ’s listing requirements.If we sell shares of our common stock in future financings, stockholders may experience immediate dilution and, as a result, our stock price may decline.We may from time to time issue additional shares of common stock at a discount from the current trading price of our common stock. As a result, ourstockholders would experience immediate dilution upon the purchase of any shares of our common stock sold at such discount. In addition, as opportunitiespresent themselves, we may enter into financing or similar arrangements in the future, including the issuance of debt securities, preferred stock or commonstock. If we issue common stock or securities convertible into common stock, our common stockholders would experience additional dilution and, as a result,our stock price may decline.Our principal stockholders and management own a significant percentage of our stock and may be able to exert control over matters subject tostockholder approval.As of February 29, 2016, our executive officers, directors and greater than 5% stockholders, in the aggregate, own approximately 49.3% of our outstandingcommon stock. As a result, such persons, acting together, may have the ability to control our management and affairs and substantially all matters submittedto our stockholders for approval, including the election and removal of directors and approval of any significant transaction. These persons also may have theability to control our management and business affairs. This concentration of ownership may have the effect of delaying, deferring or preventing a change incontrol, impeding a merger, consolidation, takeover or other business combination involving us, or discouraging a potential acquirer from making a tenderoffer or otherwise attempting to obtain control of our business, even if such a transaction would benefit other stockholders.Anti-takeover provisions in our charter documents and under Delaware law could make an acquisition of us, which may be beneficial to our stockholders,more difficult and may prevent attempts by our stockholders to replace or remove our current management.Provisions in our amended and restated certificate of incorporation and amended and restated bylaws may delay or prevent an acquisition of us or a change inour management. These provisions include: ·the authorization of the issuance of “blank check” preferred stock, the terms of which may be established and shares of which may be issuedwithout stockholder approval; ·the limitation of the removal of directors by the stockholders; ·a staggered board of directors; ·the prohibition of stockholder action by written consent, thereby requiring all stockholder actions to be taken at a meeting of our stockholders; ·the elimination of the ability of stockholders to call a special meeting of stockholders; ·the ability of our board of directors to accelerate the vesting of outstanding option grants upon certain transactions that result in a change ofcontrol; and ·the establishment of advance notice requirements for nominations for election to the board of directors or for proposing matters that can beacted upon at stockholder meetings.50 In addition, because we are incorporated in Delaware, we are governed by the provisions of Section 203 of the Delaware General Corporation Law, whichlimits the ability of stockholders owning in excess of 15% of our outstanding voting stock to merge or combine with us. Although we believe theseprovisions collectively provide for an opportunity to obtain greater value for stockholders by requiring potential acquirers to negotiate with our board ofdirectors, they would apply even if an offer rejected by our board were considered beneficial by some stockholders. In addition, these provisions may frustrateor prevent any attempts by our stockholders to replace or remove our current management by making it more difficult for stockholders to replace members ofour board of directors, which is responsible for appointing the members of our management.We do not intend to pay dividends on our common stock, and, consequently, your ability to achieve a return on your investment will depend onappreciation, if any, in the price of our common stock.We have never declared or paid any cash dividend on our common stock and do not currently intend to do so for the foreseeable future. We currentlyanticipate that we will retain future earnings for the development, operation and expansion of our business and do not anticipate declaring or paying anycash dividends for the foreseeable future. Any return to stockholders will therefore be limited to the appreciation of their stock. Therefore, the success of aninvestment in shares of our common stock will depend upon any future appreciation in their value. There is no guarantee that shares of our common stockwill appreciate in value or even maintain the price at which our stockholders have purchased their shares.We are an emerging growth company, and the reduced reporting requirements applicable to emerging growth companies may make our common stockless attractive to investors.We are an emerging growth company, as defined in the JOBS Act. For as long as we continue to be an emerging growth company, we may take advantage ofexemptions from various reporting requirements that are applicable to other public companies that are not emerging growth companies, including not beingrequired to comply with the auditor attestation requirements of Section 404 of Sarbanes-Oxley, reduced disclosure obligations regarding executivecompensation and our periodic reports and proxy statements and exemptions from the requirements of holding nonbinding advisory votes on executivecompensation and stockholder approval of any golden parachute payments not previously approved. We could be an emerging growth company until thelast day of the fiscal year following the fifth anniversary of our IPO, although circumstances could cause us to lose that status earlier, including if we becomea large accelerated filer (in which case we will cease to be an emerging company as of the date we become a large accelerated filer, which, generally, wouldoccur if, at the end of a fiscal year, among other things, the market value of our common stock that is held by non-affiliates exceeds $700 million as of the lastbusiness day of our most recently completed second fiscal quarter), if we have total annual gross revenue of $1.0 billion or more during any fiscal year (inwhich cases we would no longer be an emerging growth company as of December 31 of such fiscal year), or if we issue more than $1.0 billion in non-convertible debt during any three year period before that time (in which case we would cease to be an emerging growth company immediately). Even after weno longer qualify as an emerging growth company, we may still qualify as a “smaller reporting company,” which would allow us to take advantage of manyof the same exemptions from disclosure requirements including not being required to comply with the auditor attestation requirements of Section 404 ofSarbanes-Oxley and reduced disclosure obligations regarding executive compensation and our periodic reports and proxy statements. We cannot predict ifinvestors will find our common stock less attractive because we may rely on these exemptions. If some investors find our common stock less attractive as aresult, there may be a less active trading market for our common stock and our stock price may be more volatile.We have incurred and will continue to incur significant increased costs as a result of operating as a public company, and our management devotessubstantial time to new compliance initiatives.As a public company, we have incurred and will continue to incur significant legal, accounting and other expenses. We are subject to the reportingrequirements of the Exchange Act, which require, among other things, that we file with the SEC annual, quarterly and current reports with respect to ourbusiness and financial condition. In addition, Sarbanes-Oxley, as well as rules subsequently adopted by the SEC, and The NASDAQ Global Market toimplement provisions of Sarbanes-Oxley, impose significant requirements on public companies, including requiring establishment and maintenance ofeffective disclosure and financial controls and changes in corporate governance practices. Further, pursuant to the Dodd-Frank Wall Street Reform andConsumer Protection Act of 2010, the SEC adopted additional rules and regulations in these areas, such as mandatory “say on pay” voting requirements thatwill apply to us when we cease to be an emerging growth company. Stockholder activism, the current political environment and the current high level ofgovernment intervention and regulatory reform may lead to substantial new regulations and disclosure obligations, which may lead to additional compliancecosts and impact the manner in which we operate our business in ways we cannot currently anticipate.The rules and regulations applicable to public companies have substantially increased our legal and financial compliance costs and make some activitiesmore time-consuming and costly. To the extent these requirements divert the attention of our management and personnel from other business concerns, theycould have a material adverse effect on our business, financial condition and results of operations. The increased costs will decrease our net income orincrease our net loss, and may require us to reduce costs in other areas51 of our business or increase the prices of our products or services. For example, we expect these rules and regulations to make it more difficult and moreexpensive for us to obtain director and officer liability insurance, and we may be required to incur substantial costs to maintain the same or similar coverage.The impact of these requirements could also make it more difficult for us to attract and retain qualified persons to serve on our board of directors, our boardcommittees or as executive officers.If securities or industry analysts do not publish research or reports or publish unfavorable research or reports about our business, our stock price andtrading volume could decline.The trading market for our common stock will depend in part on the research and reports that securities or industry analysts publish about us, our business,our market or our competitors. If one or more of the analysts who covers us downgrades our stock, our stock price would likely decline. If one or more of theseanalysts ceases to cover us or fails to regularly publish reports on us, interest in our stock could decrease, which could cause our stock price or trading volumeto decline.Our ability to use net operating loss carryforwards and other tax attributes may be limited by the Internal Revenue Code.We have incurred substantial losses during our history and do not expect to become profitable in the near future and we may never achieve profitability. Tothe extent that we continue to generate taxable losses, unused losses will carry forward to offset future taxable income, if any, until such unused losses expire.As of December 31, 2015, we had U.S. federal net operating loss (NOL) carryforwards of approximately $79.4 million to offset future federal income. NOLsexpire at various years beginning with 2026. As of December 31, 2015, we also had U.S. state NOL carryforwards of approximately $56.5 million to offsetfuture state income. U.S. State NOLs expire at various years beginning with 2016. If over a rolling three-year period, the cumulative change in our ownershipexceeds 50 percentage points (as determined under applicable Treasury regulations) under Section 382 of the Internal Revenue Code of 1986, as amended(Code), our ability to utilize our U.S. federal net operating loss carryforwards and other pre-change tax attributes (such as research tax credits) to offset futuretaxable income or taxes may be limited. We have experienced at least two ownership changes since inception and our utilization of NOL carryforwards willtherefore be subject to annual limitation. Our ability to utilize our NOL carryforwards may be further limited as a result of subsequent ownership changes.Similar rules may apply under state tax laws. Such limitations could result in the expiration of our carryforwards before they can be utilized and, if we areprofitable, our future cash flows could be adversely affected due to our increased tax liability.Risks Related to the Proposed TransactionThe announcement and pendency of the Transaction could have an adverse effect on our stock price, business, financial condition, results of operationsand prospects.The announcement and pendency of the Transaction could disrupt our business in a number of ways, which may include the following, among others: ·investors may react negatively to the prospects of the combined company’s business, resulting in a decline in our stock price; ·third parties may seek to terminate and/or renegotiate their relationships with us as a result of the Transaction, whether pursuant to the terms oftheir existing agreements with us or otherwise; and ·the attention of our management may be directed toward the completion of the Transaction and related matters and may be diverted from ourday-to-day business operations, including from other opportunities that might be beneficial to us.Should they occur, any of these matters could adversely affect our stock price or harm our business, financial condition, results of operations and prospects.Failure to complete the Transaction could negatively impact our stock price and/or our business, financial condition, results of operations and prospects.Completion of the Transaction is conditioned upon the satisfaction of certain customary closing conditions, including approval by our stockholders of theissuance of the shares of our common stock as consideration, the absence of any law or order preventing the Transaction, receipt of all required governmentapprovals, the accuracy of the representations and warranties of the parties, and compliance with the covenants of the parties. These conditions are describedin more detail in the Acquisition Agreement, which is filed as Exhibit 2.1 hereto and incorporated herein by reference.52 The required conditions to closing may not be satisfied in a timely manner, or at all, or, if permissible, waived. If the Transaction is not completed for these orany other reasons, our ongoing business may be adversely affected and will be subject to a number of risks and consequences, including the following: ·we may be required, under certain circumstances, to pay Annapurna a termination fee of up to $6.0 million pursuant to the terms of theAcquisition Agreement; ·we must pay the substantial fees and expenses we incurred related to the Transaction, such as legal and accounting fees, even if the Transactionis not completed; ·the price of our common stock may decline and remain volatile; and ·we may experience negative reactions to the termination of the Transaction from third parties and employees.Furthermore, any delay in the completion of the Transaction, or any uncertainty about its completion, could have a material adverse effect on our stock price,business, financial condition, results of operations, prospects and cash flows.There will be no adjustments to the number of shares of our common stock that will be issued upon the completion of the Transaction, and therefore if themarket price of our common stock increases prior to the completion of the Transaction, the fair value of the purchase price for Annapurna will increasecorrespondingly.The number of shares of our common stock to be issued in connection with the Transaction will not be adjusted in the event of any increase or decrease in themarket price of our common stock before the closing of the Transaction. As a result, the market value of our shares, as reflected in the market price of ourcommon stock, may be substantially higher at the time of the closing of the Transaction than the market value at the time our board of directors approved theTransaction and the Acquisition Agreement. The market price of our common stock may fluctuate due to, among other things, changes in our business,operations or prospects, market assessments of the likelihood of completion of the Transaction, the timing of the completion of the Transaction, investors’views of the prospects for the combined entity, general market and economic conditions and other factors.While the Transaction is pending, we will be subject to contractual limitations that could adversely affect our business.The Acquisition Agreement restricts us from taking certain specified actions while the Transaction is pending without Annapurna’s consent, includingincurring or guaranteeing indebtedness, making capital expenditures in excess of $250,000, acquiring any material assets or selling, leasing or otherwisedisposing of any assets or properties, and selling, transferring, licensing or otherwise disposing of any of our intellectual property, subject to certainexceptions in the ordinary course of business. These restrictions may prevent us from pursuing otherwise attractive business opportunities that may arise andmaking other changes to our business prior to the closing of the Transaction or termination of the Acquisition Agreement.The Acquisition Agreement restricts our ability to pursue certain alternatives to the Acquisition and requires us to pay a termination fee to Annapurna ifwe do.The Acquisition Agreement contains non-solicitation provisions that, subject to limited exceptions, restrict our ability to initiate, solicit or encourage or takeany action to discuss or accept a competing third-party proposal. Although our board of directors is permitted to change its recommendation thatstockholders approve the matters relating to the Transaction if it determines in good faith that these actions are reasonably likely to be required to complywith its fiduciary duties and certain other conditions, doing so in certain situations would require us to pay a reverse termination fee to Annapurna of $4.0million. Furthermore, we will have to pay a reverse termination fee of $6.0 million (less the $4.0 million termination fee described above, if paid) if theagreement is terminated due to our board of directors making such change in recommendation and either (i) we consummate within twelve months of suchtermination an alternative transaction that was publicly announced or communicated in writing to our board of directors prior to such termination or (ii) weconsummate within six months of such termination an alternative transaction that is first publicly announced or otherwise communicated in writing to ourboard of directors following such termination while an alternative transaction described in the foregoing clause (i) remains outstanding and not withdrawn.Additionally, these non-solicitation provisions could discourage a potential acquirer that might have an interest in acquiring all or a significant part of ourcompany from considering or proposing that acquisition, or might result in a potential acquirer proposing to pay a lower per share price to acquire ourcompany than it might otherwise have proposed to pay because of the added expense of the termination fee that may become payable to Annapurna incertain circumstances.53 We have incurred substantial expenses in connection with the Transaction.We have incurred and will incur additional substantial expenses in connection with the Transaction, whether or not the Transaction is completed. These costsinclude fees for financial advisors, attorneys and accountants, filing fees and financial printing costs. If the Transaction is not consummated, we will beresponsible for our own expenses, which are not reimbursable in the event the Transaction does not occur. Upon completion of the Transaction, the amount oftransaction costs, including the amount of Annapurna’s transaction costs, will, in effect, reduce the cash reserves available for the combined company topursue its plan of business.Our directors and officers may have interests in the Transaction that are different from, or in addition to, those of our stockholders generally that mayinfluence them to support or approve the Transaction.Our officers and directors may have interests in the Transaction that are different from, or are in addition to, those of our stockholders. For example, upon theclosing of the Transaction, we will grant Mr. Cleveland options under our 2014 Equity Incentive Plan to purchase 381,000 shares of our common stock witha per share exercise price equal to the closing sales price of our common stock on NASDAQ on the closing date. These differing or additional interests mayinfluence our officers and directors to support or approve the Transaction.Risks Related to the Combined Company if the Transaction is CompletedThe Transaction, if successfully completed, will transform Avalanche from a company developing product candidates for the treatment of eye diseases intoa gene therapy company with a diverse pipeline of gene therapy product candidates. We may encounter challenges in implementing this transformationand the integration of Avalanche and Annapurna that could adversely impact the business and operations of the combined company.To date, all of our development efforts have been focused on developing product candidates for the treatment of eye diseases. Annapurna’s pipeline includesgene therapy product candidates designed to treat a range of diseases. The most advanced product candidate in Annapurna’s pipeline is ANN-001, which isdesigned to deliver alpha-1 antitrypsin protein, or A1AT, in patients with A1AT, a rare genetic disorder which may result in serious respiratory disease inadults and, less commonly, liver disease at any age. Other product candidates in Annapurna’s pipeline are designed to treat patients with hereditaryangioedema, Friedreich’s Ataxia and severe allergies. If the Transaction is consummated, we intend to continue to advance both our and Annapurna’s currentdevelopment programs. As a result, we will transform from a company focused solely on gene therapy treatments for eye diseases to a gene therapy companywith a diverse pipeline of product candidates.This transformation into a diversified gene therapy company poses risks relating to implementing a new business and operational strategy, including thefollowing: ·the potential disruption of our ongoing development of product candidates for the treatment of eye diseases; ·demands on our management and our limited resources related to the increase in number and diversification of our product candidates; ·difficulties in coordinating research and development activities; ·the establishment of uniform standards, controls, procedures and policies; and ·uncertainties in the business relationships with our collaborators and suppliers due to the Transaction and the transformation.Additionally, various decisions regarding management restructuring, operational staffing and reporting systems following the Transaction have not yet beenfinalized, and there can be no guarantee that Avalanche and Annapurna will operate successfully as a combined company. Integration of the two companiesand consolidation of their operations will require considerable time and attention from management, which could result in the diversion of managementresources from other important matters. Moreover, if the Transaction is consummated, we expect that Drs. Salzman and Russo will be based in Annapurna’sPhiladelphia office and certain Annapurna operations will continue to be based in Annapurna’s Paris office. Their location outside of our Menlo Parkheadquarters may make their integration into our organization more challenging.If we are unable to successfully manage these or other risks and uncertainties relating to the combination of our and Annapurna’s businesses, there will likelybe adverse impacts on the business and operations of the combined company.54 All of our and Annapurna’s product candidates are still under preclinical development and may never advance to clinical testing or be successfullycommercialized, which could materially and adverse impact the value of our common stock.All of our and Annapurna’s product candidates are still under preclinical development and may never advance to clinical testing or be successfullycommercialized. The failure to enter clinical development for and ultimately successfully commercialize one or more of Annapurna’s current productcandidates will significantly diminish the anticipated benefits of the Transaction and may materially and adversely affect the business and prospects of thecombined company. Consequently, we cannot assure you that our transformation into a diversified gene therapy company upon completion of theTransaction will be successful, and the Transaction could depress the value of our common stock.The Transaction will result in changes to our board of directors that may affect the combined company’s business strategy and operations.If the Transaction is completed, our board of directors will expand to nine members, comprising our five current directors and four new directors. This newlycomposed board of directors of the combined company may effect business strategies and operating decisions with respect to the combined company thatmay have an adverse impact on the combined company’s business, financial condition and results of operations following the completion of the Transaction.Current stockholders will have reduced ownership and voting interests after the Transaction.We will issue to Annapurna’s shareholders approximately 17.6 million shares of our common stock (inclusive of shares of our common stock underlyingvested and unvested options, as calculated on a treasury method basis) as consideration in the Transaction. Upon completion of the Transaction, our currentstockholders will own approximately 62.5% of the combined company and Annapurna shareholders will own approximately 37.5% of the combinedcompany (calculated on a treasury method basis as of January 28, 2016). As a result, the ownership and voting interests in Avalanche of our currentstockholders will be significantly reduced immediately following the Transaction. This reduction in ownership and voting interests will decrease the abilityof our current stockholders to influence the election of directors and other matters. In addition, our current stockholders will experience dilution in theirinterest in our earnings per share.The market price of our common stock following the completion of the Transaction is expected to be volatile and may drop following completion of theTransaction.The market price of our common stock could be subject to significant fluctuations following the completion of the Transaction. Market prices for securitiesof early-stage pharmaceutical, biotechnology and other life sciences companies, including gene-therapy companies, have historically been particularityvolatile. Some of the factors that may cause the market price of our common stock to fluctuate following completion of the Transaction include: ·our plans regarding further development of AVA-101 and any of the combined company’s other product candidates; ·the ability of the combined company to obtain regulatory approvals for its product candidates, and delays or failures to obtain such approvals,including approval to begin clinical trials for ANN-001 in 2016; ·the results of any clinical trials; ·failure of any of the combined company’s product candidates, if approved, to achieve commercial success; ·failure to maintain the combined company’s existing third-party license and supply agreements; ·failure by the combined company or its licensors to prosecute, maintain or enforce its intellectual property rights; ·changes in laws or regulations applicable to the combined company’s product candidates; ·any inability to obtain adequate supply of the combined company’s product candidates or the inability to do so at acceptable prices; ·adverse regulatory authority decisions; ·introduction of new products, services or technologies by its competitors; ·failure to meet or exceed the expectations of financial or industry analysts; ·failure to achieve the perceived benefits of the Transaction as rapidly or to the extent anticipated by financial or industry analysts;55 ·announcements of significant acquisitions, strategic partnerships, joint ventures or capital commitments by the combined company or itscompetitors; ·additions or departures of key personnel; ·significant lawsuits, including patent or stockholder litigation; ·changes in the market valuations of similar companies; ·general market or macroeconomic conditions; ·sales of its common stock by the combined company or its stockholders in the future; ·trading volume of the combined company’s common stock; ·announcements by commercial partners or competitors of new commercial products, clinical progress or the lack thereof, significant contracts,commercial relationships or capital commitments; ·adverse publicity relating to the gene therapy market generally, including with respect to other products and potential products in suchmarkets; ·the introduction of technological innovations or new therapies that compete with potential products of the combined company; and ·period-to-period fluctuations in the combined company’s financial results.Moreover, the stock markets in general have experienced substantial volatility that has often been unrelated to the operating performance of individualcompanies. These broad market fluctuations may also adversely affect the trading price of the combined company’s common stock.In the past, following periods of volatility in the market price of a company’s securities, stockholders have often instituted class action securities litigationagainst those companies. Such litigation, if instituted, could result in substantial costs and diversion of management attention and resources, which couldsignificantly harm the combined organization’s profitability and reputation.Item 1B. Unresolved Staff CommentsNot applicable. Item 2. PropertiesOur corporate headquarters are located in Menlo Park, California, where we lease and occupy approximately 36,000 square feet of office space. The currentterm of our lease expires on May 8, 2020, with an option to extend the term through May 8, 2024. We believe that our existing facilities are adequate for ourcurrent needs. When our lease expires, we may exercise our renewal option or look for additional or alternate space for our operations and we believe thatsuitable additional or alternative space will be available in the future on commercially reasonable terms. Item 3. Legal ProceedingsIn July 2015, three putative securities class action lawsuits were filed against us and certain of our officers in the United States District Court for the NorthernDistrict of California, each on behalf of a purported class of persons and entities who purchased or otherwise acquired our publicly traded securities betweenJuly 31, 2014 and June 15, 2015. The lawsuits assert claims under the Exchange Act and Securities Act and allege that the defendants made materially falseand misleading statements and omitted allegedly material information related to, among other things, the Phase 2a clinical trial for AVA-101 and theprospects of AVA-101. The complaints seek unspecified damages, attorneys’ fees and other costs.In December 2015, a putative securities class action lawsuit was filed against us, our board of directors, underwriters of our January 13, 2015, follow-onpublic stock offering, and two of our institutional stockholders, in the Superior Court of the State of California for the County of San Mateo. The complaintalleges that, in connection with our follow-on stock offering, the defendants violated the Securities Act of 1933, as amended, by allegedly making materiallyfalse and misleading statements and by allegedly omitting material information related to the Phase 2a clinical trial for AVA-101 and the prospects of AVA-101. The complaint seeks unspecified compensatory and rescissory damages, attorneys’ fees and other costs.56 We believe that the claims in the asserted actions are without merit and intend to defend the lawsuits vigorously. We expect to incur costs associated withdefending the actions. While we have various insurance policies related to the risks associated with our business, including directors’ and officers’ liabilityinsurance policies, there is no assurance that we will be successful in our defense of the actions, that our insurance coverage, which contains a self-insuredretention, will be sufficient, or that our insurance carriers will cover all claims or litigation costs. Due to the inherent uncertainties of litigation, we cannotreasonably predict at this time the timing or outcomes of these matters or estimate the amount of losses, or range of losses, if any, or their effect, if any, on ourfinancial statements. Item 4. Mine Safety Disclosures.Not applicable. 57 PART II Item 5. Market for Registrant’s Common Equity, Related Stockholder Matters and Issue Purchases of Equity SecuritiesOur common stock has been listed on The NASDAQ Global Market under the symbol “AAVL” since July 31, 2014. Prior to July 31, 2014, there was nopublic trading market for our common stock. The following table sets forth for the periods indicated the high and low sales prices per share of our commonstock as reported on The NASDAQ Global Market: YEAR ENDED DECEMBER 31, 2015 High Low First Quarter $62.48 $32.47 Second Quarter $42.56 $15.03 Third Quarter $17.01 $7.86 Fourth Quarter $10.69 $7.40 YEAR ENDED DECEMBER 31, 2014 High Low Third Quarter (beginning July 31, 2014) $36.78 $22.00 Fourth Quarter $57.37 $28.74 As of February 29, 2016, we had approximately 19 holders of record of our common stock. The actual number of stockholders is greater than this number ofrecord holders, and includes stockholders who are beneficial owners, but whose shares are held in street name by brokers and other nominees. This number ofholders of record also does not include stockholders whose shares may be held in trust by other entities.Dividend PolicyWe have never declared or paid cash dividends on our capital stock. We intend to retain all available funds and any future earnings, if any, to fund thedevelopment and expansion of our business and we do not anticipate paying any cash dividends in the foreseeable future. Any future determination relatedto dividend policy will be made at the discretion of our board of directors. 58 Stock Performance GraphThe following graph illustrates a comparison of the total cumulative stockholder return of an investment of $100 in cash on July 31, 2014, which is the dateour common stock first began trading on the NASDAQ Global Market, through December 31, 2015 for (i) our common stock, (ii) the NASDAQ CompositeIndex and (iii) the NASDAQ Biotech Index. Pursuant to applicable SEC rules, all values assume reinvestment of the full amount of all dividends, however nodividends have been declared on our common stock to date. The stockholder return shown in the graph below is not necessarily indicative of futureperformance, and we do not make or endorse any predictions as to future stockholder returns. This graph shall not be deemed “soliciting material” or bedeemed “filed” for purposes of Section 18 of the Exchange Act, or otherwise subject to the liabilities under that Section, and shall not be deemed to beincorporated by reference into any of our filings under the Securities Act, whether made before or after the date hereof and irrespective of any generalincorporation language in any such filing. $100 investment in stock or index July 31, 2014 December 31, 2014 December 31, 2015 Avalanche Biotechnologies, Inc. (AAVL) $100.00 $192.93 $34.01 NASDAQ Composite Index (IXIC) $100.00 $108.38 $114.58 NASDAQ Biotech (NBI) $100.00 $121.12 $134.95 Recent Sales of Unregistered SecuritiesOn October 15, 2015, in connection with an amendment to the research agreement between the Company and the Lions Eye Institute (LEI), dated as ofAugust 20, 2010, the Company issued to LEI a warrant to purchase 40,000 shares of common stock with an exercise price of $10.51 per share. This commonstock warrant is exercisable immediately, and expires on October 15, 2020. The warrant was issued to LEI pursuant to an exemption from registrationprovided under Regulation S of the Securities Act of 1933, as amended. LEI is a non-US person (as that term is defined in Regulation S of the Securities Actof 1933, as amended).Use of ProceedsOn August 5, 2014, we closed our IPO and issued 6,900,000 shares of our common stock at an initial offering price of $17.00 per share. The offer and sale ofall of the shares in the IPO were registered under the Securities Act pursuant to a registration statement on Form S-1, as amended (File Nos. 333-197133 and333-197739), which was declared effective by the SEC on July 30, 2014. The joint book-running managers for the IPO were Jefferies LLC, Cowen andCompany, LLC and Piper Jaffray & Co. The aggregate offering price to the public for the shares sold in the IPO was $117.3 million. We received net proceedsfrom the IPO of approximately $106.5 million, after deducting underwriting discounts and commissions of approximately $8.2 million and expenses ofapproximately $2.6 million payable by us. None of the expenses associated with the IPO were paid to directors, officers, persons owning 10% or more of anyclass of equity securities, or to their associates, or to our affiliates.We invested the funds received in short-term, interest-bearing investment-grade securities and government securities.59 At this time, we do not plan to use approximately $20 million of our net proceeds from the IPO to fund Phase 3 research and development startup activitiesfor our AVA-101 study, as we had described in our final prospectus filed with the SEC on July 31, 2014 pursuant to Rule 424(b) of the Securities Act. Instead,we plan to reallocate such proceeds to fund research and development expenses for additional preclinical studies relating to our wet AMD program, whichincludes AVA-101 and AVA-201, and for other product candidates in our pipeline.Purchases of Equity Securities by the Issuer and Affiliated PurchasersNone. 60 Item 6. Selected Financial DataThe following selected consolidated financial data should be read in conjunction with “Management’s Discussion and Analysis of Financial Condition andResults of Operations”, the consolidated financial statements and related notes, and other financial information included in this Annual Report on Form 10-K.We derived the consolidated financial data for the years ended December 31, 2015, 2014 and 2013 and as of December 31, 2015 and 2014 from ourconsolidated financial statements, which are included elsewhere in this Annual Report on Form 10-K. Historical results are not necessarily indicative of theresults to be expected in future periods. YEARS ENDED DECEMBER 31, 2015 2014 2013 (In thousands, except per share data) CONSOLIDATED STATEMENTS OF OPERATIONS AND COMPREHENSIVE LOSS DATA: Revenue Collaboration revenue $2,319 $572 $— Government grant revenue — — 480 Total revenue 2,319 572 480 Operating expenses: Research and development 25,462 16,976 2,151 General and administrative (2) 22,107 7,998 1,783 Restructuring charges (3) 2,573 — — Total operating expenses 50,142 24,974 3,934 Operating loss (47,823) (24,402) (3,454)Other income (expense) Interest expense — (18) (73)Other income (expense), net 370 (21) (4)Change in fair value of embedded derivative — — 18 Change in fair value of warrant liabilities — (759) (92)Loss on extinguishment of related-party convertible notes — (204) (1,671)Total other income (expense), net 370 (1,002) (1,822)Net loss (47,453) (25,404) (5,276)Deemed dividend (1) — (3,230) — Net loss attributable to common stockholders $(47,453) $(28,634) $(5,276)Other comprehensive loss: Net unrealized loss on marketable securities (6) — — Foreign currency translation adjustment (15) (17) 19 Comprehensive loss $(47,474) $(25,421) $(5,257)Net loss per share attributable to common stockholders-basic and diluted $(1.86) $(2.46) $(1.44)Weighted-average common shares outstanding-basic and diluted 25,479 11,651 3,673 (1)In April 2014, we repurchased 531,208 shares of Series A convertible preferred stock for $4.0 million. The difference between the repurchase price of$7.53 per share and original issuance price of $1.45 per share was recorded as a deemed dividend of $3.2 million to a preferred stockholder andeffected the calculation of net loss attributable to common stockholders and net loss per share for the year ended December 31, 2014.(2)In July 2015, the Company’s then Chief Executive officer resigned and some of his stock-based awards were forfeited and cancelled, which resulted in$2.4 million of additional stock-based compensation expense recorded in general and administrative expenses in our consolidated financialstatements.(3)The Company recorded estimated restructuring charges of approximately $2.6 million related to one-time termination severance payments and otheremployee-related benefits, including approximately $1.0 million of stock-based compensation expense related to the acceleration of RSUs inDecember 2015.61 YEARS ENDED DECEMBER 31, 2015 2014 2013 (In thousands) CONSOLIDATED BALANCE SHEET DATA: Cash and cash equivalent $221,348 $159,404 $564 Marketable securities 37,732 — — Working capital 254,418 154,807 (340)Total assets 264,319 161,906 1,085 Common stock warrant liability — — 42 Convertible preferred stock warrant liability — — 91 Convertible preferred stock — — 7,992 Accumulated deficit (84,168) (36,715) (8,869)Total stockholders' equity (deficit) 252,592 149,483 (8,210) 62 Item 7. Management’s Discussion and Analysis of Financial Condition and Results of OperationsYou should read the following discussion of our financial condition and results of operations in conjunction with the financial statements and the relatednotes included elsewhere in this Annual Report on Form 10-K. The following discussion contains forward-looking statements that reflect our plans,estimates and beliefs. Our actual results could differ materially from those discussed in the forward-looking statements. Factors that could cause orcontribute to these differences include those discussed below and elsewhere in this Annual Report on Form 10-K, particularly in “Cautionary NoteRegarding Forward-Looking Statements” and “Risk Factors.”OverviewWe are a gene therapy company committed to discovering and developing novel medicines that can offer potentially life-changing therapeutic benefit topatients suffering from chronic or debilitating disease. We have leveraged our next-generation gene therapy platform to create a pipeline of productcandidates. Our product candidates are designed to provide durable efficacy by inducing sustained expression of a therapeutic protein.We are targeting diseases with unmet medical need, including ophthalmic diseases such as wet age-related macular degeneration (AMD), as well as raregenetic diseases. We believe that there are several important benefits to focusing on the development of rare genetic diseases including the following: ·well-known disease pathways which we believe are particularly amenable to gene therapy, especially in conditions that are caused by a defectin expression of a single gene; ·gene therapy is believed to offer a versatile protein delivery system with persistent expression; ·local delivery of the therapeutic protein; and ·significant market demand for therapies that can offer long-term clinical benefit with potentially a one-time administration.For ophthalmic diseases, such as wet AMD, there are further benefits including the following: ·reduced risk of harmful immune responses and systemic side effects due to localized delivery in a self-contained organ; and ·well-defined and objective clinical endpoints such as the ability to read an eye chart.To date, our primary focus has been the development of AVA-101 for the treatment of wet age-related macular degeneration (wet AMD). We generated humanproof-of-concept data for AVA-101 in a Phase 1 trial with eight wet AMD subjects conducted at Lions Eye Institute (LEI) in Australia, of whom six wererandomized to treatment with AVA-101 and two to standard-of-care therapy in the form of ranibizumab injections on an as-needed basis per protocol. Six ofthese subjects were available for evaluation at 36 months, and of these six subjects, four were treated with AVA-101. In June 2015, we announced the 36-month follow-up data on the six subjects, which confirmed the safety profile of the drug previously reported at 12 months.Additionally, we conducted a Phase 2a trial for AVA-101 at LEI with 32 additional wet AMD subjects, for which we announced top-line results in June 2015.The primary endpoint of the Phase 2a study was based on ophthalmic and systemic safety, and secondary endpoints included retinal thickness (which can bea sign of reoccurrence of fluid in the retina), visual acuity and the need for anti-vascular endothelial growth factor (VEGF) therapy in the form of rescueinjections with ranibizumab. The Phase 2a clinical study met its 12-month primary endpoint, demonstrating that AVA-101 was well tolerated with afavorable safety profile in subjects with wet AMD. No serious adverse events related to AVA-101 were observed. Overall, we did not observe evidence of acomplete and/or durable anti-VEGF response in the majority of subjects treated with AVA-101 as administered in the Phase 2a study. We decided not tomove forward with the Phase 2b clinical trial for AVA-101 with the dose and administration procedure that we had planned to initiate in the second half of2015. Instead, we are conducting additional preclinical studies to inform further development of our wet AMD program.63 Regeneron had a time-limited right of first negotiation for certain rights to AVA-101 as part of our collaboration. In September 2015, we initiated, by noticeand delivery of AVA-101 clinical data to Regeneron, the time period for Regeneron to elect whether to exercise its right of first negotiation. On November 2,2015, Regeneron notified the Company that it was not exercising this right of first negotiation.In addition to AVA-101, we are working on other product candidates for the treatment of ophthalmic diseases, including: ·AVA-201. We are developing AVA-201 as a next-generation product candidate for the prevention of wet AMD. AVA-201 produces the sameanti-VEGF protein as AVA-101 using a proprietary, customized delivery mechanism, or vector. ·AVA-311. As part of our research collaboration with Regeneron, AVA-311 is being evaluated in preclinical studies for the treatment of juvenileX-linked retinoschisis (XLRS), a rare genetic disease of the retina with no approved therapy. There are approximately 10,000 boys and youngmen in the United States suffering from the disease. XLRS is caused by mutation of the RS1 gene and results in splitting of retinal layers andcorresponding loss of vision. In preclinical studies in animals to date, AVA-311 has delayed the progression of XLRS and improved vision bydelivering functional copies of the RS1 gene in retinal cells of mice. ·AVA-322 and AVA-323. We are developing AVA-322 and AVA-323 for the treatment of color vision deficiency (CVD), commonly known asred-green color blindness. CVD is a highly prevalent genetic disorder that affects approximately 8 percent of males and 0.5 percent of females,with some variation by race, and is most commonly caused by genetic mutations in the opsin genes that impact the ability of the cone cells torespond to various wavelengths of light in the retina.On January 13, 2015, we completed a public offering of 2,369,375 shares of our common stock (Follow-on Offering), which included 359,918 shares weissued pursuant to the underwriters’ exercise of their option to purchase additional shares, and we received net proceeds of approximately $130.6 million,after underwriting discounts, commissions and offering expenses.In March 2015, (i) the Company received net proceeds of approximately $8.3 million, after discounts and other issuance costs, which resulted from the sale of230,000 common shares, and (ii) the Company issued 230,000 common shares to a stockholder that exercised warrants prior to the initial public offering.In July 2015, the Company’s then Chief Executive officer resigned and some of his stock-based awards were forfeited and cancelled, which resulted in $2.4million of additional stock-based compensation expense recorded in general and administrative expenses in our consolidated financial statements. He willcontinue providing services to the Company until July 2016 as a consultant.On December 22, 2015, the Company implemented a restructuring plan to reduce operating costs and better align its workforce with the needs of its businessfollowing its decision to not initiate the Phase 2b clinical trial for AVA-101 in the second half of 2015. The plan resulted in a reduction of approximately20% of the Company’s workforce. In connection with the restructuring, the Company recorded estimated restructuring charges of approximately $2.6 millionrelated to one-time termination severance payments and other employee-related benefits, including approximately $1.0 million of stock-based compensationexpense related to the acceleration of restricted stock unit awards in December 2015.On January 29, 2016, the Company entered into an acquisition agreement (the Agreement) with Annapurna Therapeutics SAS (Annapurna), a privately-heldbiopharmaceutical company focused on advancing gene therapy for unmet medical needs, certain shareholders of Annapurna (the Contributors), andShareholder Representative Services LLC, a Colorado limited liability company, acting as the representative of the Contributors. Upon the terms and subjectto the conditions described in the Agreement, the Company will acquire all of the issued and outstanding capital stock of Annapurna in exchange forapproximately 13.1 million newly issued shares of the Company’s common stock (the Company Common Stock), and the outstanding options or other rightsto purchase capital stock of Annapurna (the Annapurna Options) will be converted into options relating to approximately 4.7 million shares of the CompanyCommon Stock (the Company Options) (together with the other transactions contemplated by the Agreement, the Transaction). Each Company Option willrelate to the whole number of shares of Company Common Stock (rounded down to the nearest whole share) equal to the number of the shares of the commonstock of Annapurna subject to such Annapurna Option multiplied by 9.5615 (as may be adjusted pursuant to the Agreement, the Exchange Ratio). Theexercise price per share for the Company Option will be equal to the exercise price per share of such Annapurna Option divided by the Exchange Ratio.Holders of Annapurna Options may exercise their Annapurna Options prior to the closing of the transaction, in which case each such exercising holder willbecome party to the Agreement as a Contributor and receive newly issued shares of the Company’s common stock upon closing instead of Company Options.The transaction requires the Company’s stockholders’ vote and is expected to close in the second quarter of 2016.64 The Agreement may be terminated by either party under certain circumstances as defined in the Agreement, including, among others, if the closing of theacquisition has not occurred by the six-month anniversary of the execution of the Agreement, subject to certain exceptions, or if the Company’s stockholdersfail to approve the issuance of the Company’s stock (Company Stock Issuance).The Agreement provides for the Company to pay to Annapurna a reverse termination fee of $4,000,000 if the Agreement is terminated by either party for theCompany’s failure to obtain the required vote of the Company’s stockholders for the Company Stock Issuance or if the Agreement is terminated byAnnapurna upon a certain defined triggering event. The Agreement also provides for the Company to pay to Annapurna termination fee of $6,000,000 (lessthe $4,000,000 termination fee described above, if paid) if the Agreement is terminated by either party for the failure to obtain the required vote of theCompany’s stockholders or by Annapurna upon certain other triggering events, and either (x) the Company consummates within twelve months of suchtermination an alternative transaction that was publicly announced or communicated in writing to the Company’s board of directors prior to such terminationor (y) the Company consummates within six months of such termination an alternative transaction that is first publicly announced or otherwisecommunicated in writing to the Company’s board of directors following the termination of the Agreement while an alternative transaction described in theforegoing clause (x) remains outstanding and not withdrawn.Financial OverviewSummaryWe have not generated positive cash flow or net income from operations since our inception and, at December 31, 2015, we had an accumulated deficit of$84.2 million, primarily as a result of research and development, general and administrative expenses and restructuring charges. We expect to incursubstantial losses from operations in the foreseeable future as we continue our research and development efforts, advance our product candidates throughpreclinical and clinical development, manufacture clinical study materials, seek regulatory approval and prepare for, and if approved, proceed tocommercialization. We are at an early stage of development and may never be successful in developing or commercializing our product candidates.See “Risk Factors—Risks Related to Our Financial Position and Need for Capital—We have incurred significant operating losses since inception, and weexpect to incur significant losses for the foreseeable future. We may never become profitable or, if achieved, be able to sustain profitability.”While we may in the future generate revenue from a variety of sources, including license fees, milestone and research and development payments inconnection with strategic partnerships, and potentially revenue from approved product sales, we have not yet generated any revenue from approvedtherapeutic product candidates.Prior to the IPO, we financed our operations through private placements of convertible notes and preferred stock with our investors, funding under ourgovernment grants and revenue from research collaboration and license agreements. We entered into our first license revenue generating agreement duringthe first quarter of 2014. We have never been profitable and have incurred net losses in each year since commencement of our operations.We have no manufacturing facilities, and all of our manufacturing activities are contracted out to a third party. Additionally, we currently utilize third-partyclinical research organizations (CROs) to carry out our clinical development and we do not yet have a sales organization.We expect to incur substantial expenditures in the foreseeable future for the development and potential commercialization of our product candidates,including conducting additional preclinical studies to inform further development of our wet AMD program. We will need substantial additional funding inthe future to support our operating activities as we advance our product candidates through preclinical and clinical development, seek regulatory approvaland prepare for and, if approved, proceed to commercialization. Adequate funding may not be available to us on acceptable terms, or at all. If we are unable toraise capital, or to do so on acceptable terms, when needed, or to form additional collaboration partnerships to support our efforts, we could be forced todelay, reduce or eliminate our research and development programs or potential commercialization efforts.On January 13, 2015, we completed a Follow-on Offering and we received net proceeds of approximately $130.6 million, after underwriting discounts,commissions and offering expenses. As of December 31, 2015, we had $221.3 million in cash and cash equivalents and $37.7 million of marketablesecurities. We believe that we have sufficient funds to continue operations for the foreseeable future.65 RevenueTo date we have not generated any revenue from the sale of our products. In May 2014, we entered into a multi-year license and development agreement withRegeneron. Under the terms of the agreement, we received initial payments of $8.0 million that included payment for research license fees, prepaidcollaboration research costs and the right of first negotiation for a potential license to develop and commercialize AVA-101. As the agreement provides formultiple deliverables, we account for this agreement as a multiple elements revenue arrangement. If deliverables do not appear to have a standalone fairvalue, they were combined with other deliverables into a unit of accounting with standalone fair value. We allocated the $8.0 million received to the fairvalues of the two units of accounting identified in the arrangement. We expect to recognize $6.5 million for research licenses and related research anddevelopment services ratably over the associated period of performance, which is the maximum research period of eight years. As there is no discerniblepattern of performance and/or objectively measurable performance measures do not exist, we will recognize revenue on a straight-line basis over the eight-year performance period. The remaining $1.5 million allocated to the second unit of accounting for the time-limited right of first negotiation for AVA-101was deferred. On November 2, 2015, Regeneron notified the management that it was not exercising this right of first negotiation and we recognized the entire$1.5 million as revenue in 2015.The portion of the upfront payment that was applied to the original research budget was fully used in the fourth quarter of 2015, and the Company andRegeneron, through a joint review committee, will agree annually on an updated research and development services budget through the research period. TheCompany will invoice Regeneron quarterly for services performed in each prior quarter in accordance with the agreement with Regeneron. These additionalresearch fees will be added to the research licenses and related research and development services unit of accounting, recorded as deferred revenue andrecognized to revenue over the remaining maximum research term. The Company recognized $0.8 million as revenue related to this unit of accountingduring the year ended December 31, 2015, and recorded $5.6 million of deferred revenue, including $0.9 million as current portion, and $0.4 million asreceivable from collaboration partner as of December 31, 2015. Our ability to generate product revenue and become profitable depends upon our ability to successfully develop and commercialize our product candidates.Because of the numerous risks and uncertainties associated with product development, we are unable to predict the amount or timing of product revenue.Even if we are able to generate revenue from the sale of our products, we may be unable to continue our operations at planned levels and be forced to reduceour operations.Research and Development ExpensesConducting a significant amount of research and development is central to our business model. Research and development expenses include certain payrolland personnel expenses, stock-based compensation expense, laboratory supplies, consulting costs, external contract research and development expenses,including expenses incurred under agreements with CROs, the cost of acquiring, developing and manufacturing clinical study materials and overheadexpenses, including rent, equipment depreciation, insurance and utilities.Research and development costs are expensed as incurred. Advance payments for goods or services for future research and development activities are deferredand expensed as the goods are delivered or the related services are performed.We estimate preclinical study and clinical trial expenses based on the services performed pursuant to contracts with research institutions and CROs thatconduct and manage preclinical studies and clinical trials on our behalf. In accruing service fees, we estimate the time period over which services will beperformed and the level of effort to be expended in each period. We estimate the amounts incurred through communications with third party service providersand our estimates of accrued expenses as of each balance sheet date are based on information available at the time. If the actual timing of the performance ofservices or the level of effort varies from the estimate, we will adjust the accrual accordingly.At this time, we cannot reasonably estimate the nature, timing or aggregate costs of the efforts that will be necessary to complete the development of any ofour product candidates. The successful development and commercialization of a product candidate is highly uncertain, and clinical development timelines,the probability of success and development and commercialization costs can differ materially from expectations.We received refundable tax credits from the Australian tax authorities in connection with certain research costs incurred by our subsidiary conductingresearch in Australia. These refunds do not depend on our taxable income or tax position and therefore we do not account for them under an income taxaccounting model. We recognize such refunds as government grants in the period when qualified expenses are incurred as a reduction of research expenses.We have recorded the reimbursement from the Australian tax authorities as a reduction of research and development expense in the consolidated statementsof operations and comprehensive loss for the applicable period.66 General and Administrative ExpensesGeneral and administrative expenses consist principally of personnel-related costs, stock-based compensation, professional fees for legal, consulting, auditand tax services, rent and other general operating expenses not otherwise included in research and development expenses. Our general and administrativeexpenses may increase in future periods if and to the extent we elect to increase our investment in infrastructure to support continued research anddevelopment activities and potential commercialization of our product candidates. We will continue to evaluate the need for such investment in conjunctionwith ongoing consideration of our pipeline of product candidates. We anticipate increased expenses related to audit, legal and regulatory functions, as wellas director and officer insurance premiums and investor relations costs associated with being a public reporting company.Other Income (Expense), NetOther income (expense), net is comprised mainly of changes in the fair value of common stock warrant liabilities and preferred stock warrant liabilities in2014 and interest income on our cash and investment in marketable securities in 2015. At the time of the IPO, all then outstanding warrants were exercised,and as a consequence, we do not expect to have any other income (expense), net related to changes in the fair value of warrant liabilities in future periods.In April 2014, we recorded a $0.2 million loss related to the conversion of all outstanding convertible notes into Series B convertible preferred stock. InNovember 2013, we amended the terms of the convertible notes agreement to accelerate their conversion into shares of Series A convertible preferred stock,which we determined represented an extinguishment. As a result, we recorded a loss on the extinguishment of convertible notes of $1.7 million in 2013. Wedo not expect such charges in future periods as we have no outstanding convertible notes as of December 31, 2015.Critical Accounting Policies, Significant Judgments and Use of EstimatesThis discussion and analysis of our financial condition and results of operations is based on our consolidated financial statements, which have been preparedin accordance with U.S. GAAP. The preparation of these consolidated financial statements requires us to make estimates and assumptions that affect thereported amounts of assets and liabilities and the disclosure of contingent assets and liabilities at the date of the consolidated financial statements, as well asthe reported expenses incurred during the reporting periods. Our estimates are based on our historical experience and on various other factors that we believeare reasonable under the circumstances, the results of which form the basis for making judgments about the carrying value of assets and liabilities that are notreadily apparent from other sources. Actual results may differ from these estimates. We believe that the accounting policies discussed below are critical tounderstanding our historical and future performance, as these policies relate to the more significant areas involving management’s judgments and estimates.Revenue RecognitionWe have primarily generated revenue through a research and collaboration arrangement with a strategic partner for the development and commercializationof product candidates, and a license agreement related to the licensing of certain of our intellectual property. Additionally, we have historically generatedgrant revenue from research and development programs.We recognize revenue in accordance with Accounting Standards Codification Topic 605, Revenue Recognition (ASC 605). Accordingly, revenue isrecognized for each unit of accounting when all of the following criteria are met: ·Persuasive 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.Amounts received prior to satisfying the revenue recognition criteria are recorded as deferred revenue in our consolidated balance sheets. Amounts expectedto be recognized as revenue within the 12 months following the balance sheet date are classified as deferred revenue, current portion. Amounts not expectedto be recognized as revenue within the 12 months following the balance sheet date are classified as deferred revenue, net of current portion.In May, 2014, we entered into a research collaboration and license agreement with Regeneron. As a result, we are recognizing revenue under the agreement asdiscussed in Note 2 of the accompanying consolidated financial statements.67 Government grants provide funds for certain types of expenditures in connection with research and development activities over a contractually definedperiod. Revenue related to government grants is recognized in the period during which the related costs are incurred and the related services are rendered,provided that the applicable performance obligations under the government grants have been met. We intend to continue to evaluate pursuing additionalgovernment grant opportunities on a case-by-case basis.Accrued Research and Development ExpenseWe estimate our accrued research and development expenses as of each balance sheet date. This process involves reviewing contracts and purchase orders,reviewing the terms of our license agreements, communicating with our applicable personnel to identify services that have been performed on our behalf, andestimating the level of service performed and the associated cost incurred for the service when we have not yet been invoiced or otherwise notified of actualcost. The majority of our service providers invoice us monthly in arrears for services performed. Expenses that are paid in advance of performance are deferredas a prepaid expense and expensed as the services are provided.Examples of estimated accrued research and development expenses include fees to: ·contract manufacturers in connection with the production of clinical trial materials; ·CROs and other service providers in connection with clinical studies; ·investigative sites in connection with clinical studies; ·vendors in connection with preclinical development activities; and ·services providers for professional service fees such as consulting and related services.Our understanding of the status and timing of services performed relative to the actual status and timing may vary and may result in our reporting changes inestimates in any particular period. To date, there have been no material differences from our estimates to the amount actually incurred. However, due to thenature of these estimates, we cannot assure you that we will not adjust our estimates in the future as we become aware of additional information about thestatus or conduct of our clinical studies or other research activities.Stock-Based Compensation ExpenseWe recognize compensation costs related to stock-based awards granted to employees based on the estimated fair value of the awards on the date of grant, netof estimated forfeitures. We estimate the grant date fair value, and the resulting stock-based compensation expense, using the Black-Scholes valuation model.The grant date fair value of the stock-based awards is generally recognized on a straight-line basis over the requisite service period, which is generally thevesting period of the respective awards. Stock-based compensation expense related to awards to non-employees is recognized based on the then-current fairvalue at each measurement date over the associated service period of the award, which is generally the vesting term, using the accelerated attribution method.We have used the Black-Scholes valuation model to assist us in determining the fair value of stock-based awards. The Black-Scholes valuation modelrequires the use of subjective and highly complex assumptions which determine the fair value of stock-based awards.Restricted Stock UnitsRestricted stock units, or RSUs, are share awards that entitle the holder to receive freely tradable shares of our common stock upon vesting. The fair value ofRSUs is based upon the closing sales price of our common stock on the grant date. RSUs granted to employees generally vest over a two-to-four year period.There were no RSUs granted prior to April 2015. As of December 31, 2015, there was $6.3 million of unrecognized compensation cost related to unvestedRSUs that we expect to recognize over a weighted-average period of 2.0 years.68 Stock Options Granted to EmployeesThe fair value of each option issued to employees was estimated at the date of grant using the Black-Scholes valuation model with the following weighted-average assumptions: Options Employee Stock Purchase Plan YEARS ENDED DECEMBER 31 YEARS ENDED DECEMBER 31 2015 2014 2013 2015 2014 2013 Expected volatility 79% 79% 80% 74% — — Expected term (in years) 6.1 6.0 6.0 0.5 — — Expected dividend yield — — — — — — Risk-free interest rate 1.7% 1.9% 1.0% 0.1% — — As of December 31, 2015, there was $14.2 million of unrecognized stock-based compensation expense related to employees’ awards that is expected to berecognized over a weighted-average period of 2.7 years.Stock Options Granted to Non-EmployeesWe used the following weighted-average assumptions in estimating non-employees stock-based compensation expense: YEARS ENDED DECEMBER 31 2015 2014 2013 Option grants: Expected volatility 81% 79% 79%Expected term (in years) 3.3 7.5 7.9 Expected dividend yield — — — Risk-free interest rate 1.0% 2.2% 1.8% As of December 31, 2015, there was $1.1 million of unrecognized stock-based compensation expense related to non-employees’ awards that is expected to berecognized over a weighted-average period of 1.5 years.Expected volatility. We estimate expected volatility based on the average historical volatility of a peer group of comparable publicly traded life sciences andbiotechnology companies with product candidates in similar stages of clinical development, as we do not have sufficient trading history for our commonstock. We will continue to apply this process until a sufficient amount of historical information regarding the volatility of our own stock price becomesavailable.Expected term. We derived the expected term using the “simplified” method (the expected term is determined as the average of the time-to-vesting and thecontractual life of the options), as we have limited historical information to develop expectations about future exercise patterns and post vesting employmenttermination behavior. Expected term for non-employee awards is based on the remaining contractual term of an option on each measurement date. Theexpected term of the ESPP rights equals to the six-month look-back period.Risk-free interest rate. The risk-free interest rate is based on U.S. Treasury zero-coupon issues with remaining terms similar to the expected term on theoptions.Expected dividend yield. We have never paid any dividends and do not plan to pay dividends in the foreseeable future, and, therefore, used an expecteddividend yield of zero in the valuation model.Forfeitures. We estimate forfeitures at the time of grant, and revise those estimates in subsequent periods if actual forfeitures differ from those estimates. Weuse historical data to estimate pre-vesting option forfeitures and record stock-based compensation expense only for those awards that are expected to vest. Tothe extent actual forfeitures differ from the estimates, the difference will be recorded as a cumulative adjustment in the period that the estimates are revised.69 The following table sets forth our total stock-based compensation expense for awards granted in the years ended December 31, 2015, 2014 and 2013: (in thousands) YEARS ENDED DECEMBER 31 2015 2014 2013 Research and development $4,009 $7,331 $362 General and administrative 6,447 1,236 153 Restructuring charges 1,049 — — Total share-based compensation $11,505 $8,567 $515 Fair value of common stock. The fair value of the shares of common stock underlying our stock options has historically been determined by our board ofdirectors. Because there has been no public market for our common stock and in the absence of recent arm’s-length cash sales transactions of our commonstock with independent third parties, our board of directors has determined the fair value of our common stock by considering at the time of grant a number ofobjective and subjective factors, including the following: independent third-party valuations as of December 31, 2012, March 31, 2013, June 30,2013, September 30, 2013, December 31, 2013, March 31, 2014 and June 30, 2014; progress of research and development activities; our operating andfinancial performance, including our levels of available capital resources; rights and preferences of our common stock compared to the rights and preferencesof our other outstanding equity securities; equity market conditions affecting comparable public companies, as reflected in comparable companies’ marketmultiples, initial public offering (IPO) valuations and other metrics; the achievement of enterprise milestones, including our progress in clinical trials andpotential collaborations with partners; the likelihood of achieving a liquidity event for the shares of common stock, such as an IPO given prevailing marketand biotechnology sector conditions; sales of our convertible preferred stock in arms-length transactions; the illiquidity of our securities by virtue of being aprivate company; business risks; and management and board experience.The independent third-party valuations used the income, guideline and transaction approaches based on our expected future cash flows and applied adiscount for lack of marketability. The guideline approach measures value on a minority-interest basis; the transaction and income approaches measure valueon a controlling basis. This approach is outlined in the American Institute of Certified Public Accountants (AICPA) Practice Aid, “Valuation of Privately-Held-Company Equity Securities Issued as Compensation” as the probability-weighted expected return method (PWERM). Enterprise values were calculatedbased on three exit scenarios, including an IPO, a partnership for the development of our product candidate either in an earlier stage or a late stage of clinicaldevelopment and a corporate failure. Each value was weighted based on the probability of each event’s occurrence to arrive at an indicated enterprise value.In estimating the value of equities, management estimated a term for each of the IPO, partnership or corporate failure scenarios.Following the completion of our IPO in August 2014, the fair value of our common stock generally is determined by reference to the closing sales price of ashare of our common stock on the grant date.Common Stock WarrantsIn October 2015, in connection with an amendment to our research agreement with LEI, we issued a warrant to LEI to purchase 40,000 shares of our commonstock with an exercise price of $10.51 per share. This common stock warrant is exercisable immediately, and expires on October 15, 2020. The Companyestimated the fair value of this warrant to be approximately $0.2 million which was recorded as a debit to research and development expenses and a credit toadditional paid-in capital upon issuance. The fair value of the warrant was calculated using the Black-Scholes valuation model, and was based on the closingprice of our common stock on the issuance date of $8.35 per share, the exercise price of $10.51, the contractual term of the warrant of 5 years, a risk-freeinterest rate of 1.34%, an expected volatility of 75% and a 0% expected dividend yield.The amendment also provides for the issuance of an additional warrant to LEI to purchase up to 40,000 shares of the Company's common stock uponcompletion of the 36 month follow-up on the Phase 2a AVA-101 clinical study (Contingent Warrant). As of December 31, 2015, none of the shares subject tothe Contingent Warrant were vested and exercisable. The Company is accounting for this warrant as a stock-based award issued for service and estimated thefair value of the costs associated with the service performed to be approximately $30,000 which was recorded as a debit to research and developmentexpenses and a credit to additional paid-in capital in 2015. The fair value of the Contingent Warrant was calculated using the Black-Scholes valuationmodel, and was based on the closing price of common stock on December 31, 2015 of $9.52 per share, the expected term of the warrants of 6.6 years, a risk-free interest rate of 1.1%, an expected volatility of 79% and a 0% expected dividend yield.70 Income TaxWe recognize deferred income taxes for temporary differences between the basis of assets and liabilities for financial statement and income tax purposes. Weperiodically evaluate the positive and negative evidence bearing upon realizability of our deferred tax assets. Based upon the weight of available evidence,which includes our historical operating performance, reported cumulative net losses since inception and difficulty in accurately forecasting our future results,we maintained a full valuation allowance on the net deferred tax assets as of December 31, 2015 and 2014 of approximately $28.9 million and $12.5 million,respectively. We intend to maintain a full valuation allowance on the federal, state and foreign deferred tax assets until sufficient positive evidence exists tosupport reversal of the valuation allowance.As of December 31, 2015, the Company had U.S. federal NOL carryforwards of approximately $79.4 million to offset future federal income. NOLs expire atvarious years beginning with 2026. As of December 31, 2015, the Company also had U.S. state NOL carryforwards of approximately $56.5 million to offsetfuture state income. U.S. State NOLs expire at various years beginning with 2016. At December 31, 2015, the Company also had approximately $0.2 millionof foreign net operating loss carryforwards which may be available to offset future foreign income; these carryforwards do not expire.Under Section 382 of the Code, our ability to utilize NOL carryforwards or other tax attributes such as research tax credits, in any taxable year may be limitedif we have experienced an “ownership change.” Generally, a Section 382 ownership change occurs if there is a cumulative increase of more than 50percentage points in the stock ownership of one or more stockholders or groups of stockholders who own at least 5% of a corporation’s stock within aspecified testing period. Similar rules may apply under state tax laws. We believe that we have experienced at least two ownership changes under Section 382which will result in limitations in our ability to utilized net operating losses and credits. In addition, we may experience ownership changes as a result of ourprevious or future offerings or other changes in the ownership of our stock. As a result, the amount of the NOL carryforwards and research and creditcarryforwards presented in our financial statements could be limited and may expire unutilized.We record unrecognized tax benefits as liabilities and adjust these liabilities when our judgment changes as a result of the evaluation of new information notpreviously available. Because of the complexity of some of these uncertainties, the ultimate resolution may result in a payment that is materially differentfrom our current estimate of the unrecognized tax benefit liabilities. These differences will be reflected as increases or decreases to income tax expense in theperiod in which new information is available. Our policy is to recognize interest and penalties related to income taxes as a component of income tax expense.No interest and penalties related to income taxes have been recognized in the statements of operations and comprehensive loss in 2015, 2014 and 2013.Recently Issued Accounting PronouncementsIn August 2014, the Financial Accounting Standards Board (FASB) issued Accounting Standard Update (ASU) 2014-15, Presentation of FinancialStatements—Going Concern (Subtopic 205-40): Disclosure of Uncertainties about an Entity’s Ability to Continue as a Going Concern, requiringmanagement to evaluate whether events or conditions could impact an entity’s ability to continue as a going concern and to provide disclosures if necessary.Management will be required to perform the evaluation within one year after the date that the financial statements are issued. Disclosures will be required ifconditions give rise to substantial doubt and the type of disclosure will be determined based on whether management’s plans will be able to alleviate thesubstantial doubt. The accounting standards update will be effective for the first annual period ending after December 15, 2016, and for annual periods andinterim periods thereafter with early application permitted. The adoption of this ASU is not expected to impact the Company’s financial position or results ofoperations.In May 2014, the FASB issued ASU No. 2014-09, Revenue from Contracts with Customers (Topic 606), which supersedes the revenue recognitionrequirements in ASC 605, Revenue Recognition. This ASU is based on the principle that revenue is recognized to depict the transfer of goods or services tocustomers in an amount that reflects the consideration to which the entity expects to be entitled in exchange for those goods or services. The ASU alsorequires additional disclosure about the nature, amount, timing and uncertainty of revenue and cash flows arising from customer contracts, includingsignificant judgments and changes in judgments and assets recognized from costs incurred to obtain or fulfill a contract. In July 2015, the FASB approveddeferral of the effective date of this ASU by one year to December 15, 2017. The ASU’s effective date for the Company will be January 1, 2018. The Companyis evaluating the application of this ASU, but has not yet determined the potential effects it may have on the Company’s consolidated financial statements.In April 2015, the FASB issued ASU No. 2015-05, Customer’s Accounting of Fees Paid in Cloud Computing Arrangement, guidance on accounting for feespaid in cloud computing arrangements. If a cloud computing arrangement includes a software license, then the customer should account for the softwarelicense element of the arrangement consistent with the acquisition of other software licenses. If a cloud computing arrangement does not include a softwarelicense, the customer should account for the arrangement as a services contract. All software licenses recognized under this guidance will be accounted forconsistent with other licenses of intangible assets. The guidance becomes effective for the Company for the first quarter of fiscal 2016. The guidance is notexpected to have a material effect on the Company's consolidated financial statements. 71 In November 2015, FASB issued ASU No. 2015-17, Balance Sheet Classification of Deferred Taxes, requiring all deferred tax assets and liabilities, and anyrelated valuation allowance, to be classified as non-current on the balance sheet. The classification change for all deferred taxes as non-current simplifiesentities’ processes as it eliminates the need to separately identify the net current and net non-current deferred tax asset or liability in each jurisdiction andallocate valuation allowances. The Company elected to retrospectively adopt this accounting standard in the beginning of our fourth quarter of fiscal 2015.The adoption of this standard did not have any impact on the Company’s consolidated financial statements due to full valuation allowance recorded on ourdeferred taxes.On January 5, 2016, the FASB issued ASU 2016-01, Recognition and Measurement of Financial Assets and Financial Liabilities, which amends theguidance in U.S. GAAP on the classification and measurement of financial instruments. Although the ASU retains many current requirements, it significantlyrevises an entity’s accounting related to (1) the classification and measurement of investments in equity securities and (2) the presentation of certain fairvalue changes for financial liabilities measured at fair value. The ASU also amends certain disclosure requirements associated with the fair value of financialinstruments. The new standard is effective for fiscal years and interim periods within those fiscal years beginning after December 15, 2017, with earlyadoption permitted for certain changes. The Company has not yet determined the potential effects the new standard will have of the Company’s consolidatedfinancial statements.Emerging Growth Company StatusSection 107 of the JOBS Act provides that an emerging growth company can take advantage of the extended transition period provided in Section 7(a)(2)(B)of the Securities Act for complying with new or revised accounting standards. Thus, an emerging growth company can delay the adoption of certainaccounting standards until those standards would otherwise apply to private companies. We have irrevocably elected not to avail ourselves of this extendedtransition period and, as a result, we will adopt new or revised accounting standards on the relevant dates on which adoption of such standards is required forcompanies that are not emerging growth companies.Results of OperationsComparison of the Years Ended December 31, 2015 and 2014The following table summarizes our results of operations for the periods indicated: (in thousands) YEARS ENDEDDECEMBER 31, INCREASE/(DECREASE) 2015 2014 Collaboration revenue $2,319 $572 $1,747 Operating expenses: Research and development 25,462 16,976 8,486 General and administrative 22,107 7,998 14,109 Restructuring charges 2,573 — 2,573 Total operating expenses 50,142 24,974 25,168 Operating loss (47,823) (24,402) (23,421)Other income (expense): Interest expense — (18) 18 Other income (expense), net 370 (21) 391 Change in fair value of warrant liabilities — (759) 759 Loss on extinguishment of related-party convertible notes — (204) 204 Net loss (47,453) (25,404) (22,049)Deemed dividend — (3,230) 3,230 Net loss attributable to common stockholders $(47,453) $(28,634) $(18,819) 72 RevenueCollaboration revenue increased by $1.7 million to $2.3 million in 2015 from $0.6 million in 2014. In September 2015, we initiated, by notice and deliveryof AVA-101 clinical data package to Regeneron, the time period for Regeneron to elect whether to exercise its right of first negotiation. In November 2015,Regeneron notified the Company that it was not exercising the right of first negotiation and the Company recognized $1.5 million related to the right of firstnegotiation as collaboration revenue in 2015. Collaboration revenue related to research licenses and related research and development services that werecognize ratably over the maximum research period of 8 years, was $0.8 million and $0.6 million in fiscal 2015 and 2014 years respectively.Research and Development ExpenseResearch and development expense increased to $25.5 million for the year ended December 31, 2015 from $17.0 million for the year ended December 31,2014. The increase in research and development expense was primarily due to increases of $5.7 million in salaries and related expenses due to increasedemployee headcount, $3.3 million in drug product process development expenses, clinical expenses, laboratory expenses and overhead and $2.4 million inexternal consulting expenses and research studies. The increase in research and development expenses was also due to a $0.2 million non-cash stockcompensation charge related to the issuance of a common stock warrant. The increase was offset by $3.3 million decrease in stock-based compensationexpenses, as most of the expense related to non-employee stock option awards that are remeasured based on the price of our common stock at December 31,2015.For the periods presented, substantially all of our research and development expense related to development activities for AVA-101, for the treatment of wetAMD, and our other potential product candidates in our development program. We expect research and development expenses may increase in future periodsas we continue to invest in our pipeline products and preclinical studies relating to our wet AMD program.General and Administrative ExpenseGeneral and administrative expense increased to $22.1 million for the year ended December 31, 2015 from $8.0 million for the year ended December 31,2014. The increase in general and administrative expense was primarily due to expense increases of $3.6 million in salaries and expenses related to increasedemployee headcount, $5.2 million in stock-based compensation expenses, $1.9 million in public company-related expenses and overhead and $3.3 millionin consulting and professional service expenses, as we expanded our operations and operated as a public company.We expect general and administrative expenses may increase in future periods if and to the extent we elect to increase our investment in infrastructure tosupport continued research and development activities and potential commercialization of our product candidates. We will continue to assess such expensesin conjunction with ongoing consideration of our pipeline of product candidates. We anticipate increased costs in connection with increased professionalfees associated with being a public company.Restructuring ChargesIn connection with the restructuring, the Company estimates that it will incur aggregate restructuring charges in the fourth quarter of 2015 of approximately$2.6 million related to one-time termination severance payments and other employee-related benefits, including approximately $1.0 million of stock-basedcompensation expense related to the acceleration of restricted stock units.Other income (Expense), NetOther income (expense), net is comprised mainly of changes in the fair value of common stock warrant liabilities and preferred stock warrant liabilities in2014 and interest income on our cash and investment in marketable securities in 2015. At the time of the IPO, all then outstanding warrants classified asliabilities were exercised, and as a consequence, the Company does not expect to have any other income (expense), net related to changes in the fair value ofwarrant liabilities in future periods.Changes in Fair Value of Warrant LiabilitiesWe recorded changes in the fair value of warrant liabilities of ($0.8) million for the year ended December 31, 2014. In connection with the completion of theIPO in August 2014, all of the then outstanding warrants to purchase convertible preferred stock were exercised. As a result of the exercises, we recorded a$0.8 million loss related to the change in fair value in our consolidated statements of operations and comprehensive loss.73 Loss on Extinguishment of Related Party Convertible NotesIn April 2014, we converted the outstanding balance under our related-party convertible notes of $2.0 million into 295,115 shares of Series B convertiblepreferred stock at 90% of the purchase price paid by other investors, in accordance with the terms of the agreement. As a result, we recorded a loss on theextinguishment of convertible notes of $0.2 million in 2014.Deemed DividendIn April 2014, we repurchased 531,208 shares of Series A convertible preferred stock for $4.0 million. The difference between the repurchase price of $7.53per share and original issuance price of $1.45 per share was recorded as a deemed dividend of $3.2 million to a preferred stockholder and effected thecalculation of net loss attributable to common stockholders and net loss per share for the year ended December 31, 2014.Comparison of the Years Ended December 31, 2014 and 2013The following table summarizes our results of operations for the periods indicated: (in thousands) YEARS ENDEDDECEMBER 31, INCREASE/(DECREASE) 2014 2013 Collaboration revenue $572 $— $572 Government grant revenue — 480 (480)Total revenue 572 480 92 Operating expenses: Research and development 16,976 2,151 14,825 General and administrative 7,998 1,783 6,215 Total operating expenses 24,974 3,934 21,040 Operating loss (24,402) (3,454) (20,948)Other (expense) income: Interest expense (18) (73) 55 Other (expense) income, net (21) (4) (17)Change in fair value of embedded derivative — 18 (18)Change in fair value of warrant liabilities (759) (92) (667)Loss on extinguishment of related-party convertible notes (204) (1,671) 1,467 Net loss (25,404) (5,276) (20,128)Deemed dividend (3,230) — (3,230)Net loss attributable to common stockholders $(28,634) $(5,276) $(23,358) RevenueCollaboration and license revenue increased by $0.6 million for the year ended December 31, 2014, as we recognized revenue from the Regeneron agreementand from a license agreement entered into during the first quarter of 2014. Government grant revenue decreased to zero for the year ended December 31, 2014from $0.5 million for the year ended December 31, 2013, as we completed the work performed under the government grants during the 2013 fiscal year.Research and Development ExpenseResearch and development expense increased to $17.0 million for the year ended December 31, 2014 from $2.2 million for the year ended December 31,2013. The increase in research and development expense was primarily due to increases of $7.0 million in stock-based compensation expenses, $3.0 millionin expenses related to an increase in our employee headcount, $2.5 million in drug product process development expenses and laboratory supplies and $1.6million in external consulting expenses and research studies. Expenses during the year ended December 31, 2013 benefited from reimbursement of $0.8million from the Australian tax authorities recorded as a reduction in research and development expense as compared to $0.1 million during 2014. For theperiods presented, substantially all of our research and development expense related to our development activity for AVA-101 for the treatment of wet AMD,and the other potential product candidates in our development program. We expect research and development expenses to increase in future periods as wecontinue to invest in our pipeline products and AVA-101 in late-stage clinical trials.74 General and Administrative ExpenseGeneral and administrative expense increased to $8.0 million for the year ended December 31, 2014 from $1.8 million for the year ended December 31, 2013.The increase in general and administrative expense was primarily due to increases of $1.8 million related in an increase in our employee headcount,$1.1 million in stock-based compensation expenses, $1.6 million in public company-related expenses and overhead and $2.5 million in consulting andprofessional service expenses, as we expanded our operations. We also recorded a $0.8 million non-cash one-time charge of collaboration acquisition costs in2013 related to the issuance of 689,655 shares of Series A convertible preferred stock to a potential collaborator for cash at a price per share below the fairvalue of such shares. We expect general and administrative costs to increase in future periods, reflecting both the increased costs in connection with thefuture commercialization of AVA-101 and our pipeline products, as well as an expanded infrastructure and increased professional fees associated with being apublic company.Interest ExpenseInterest expense decreased to $18,000 for the year ended December 31, 2014 from $73,000 for the comparable period in 2013 as outstanding convertiblenotes were converted into Series B convertible preferred stock in April 2014.Changes in Fair Value of Embedded DerivativeWe recorded an embedded derivative liability in connection with our 2012 Notes. For the year ended December 31, 2013, we recorded income of $18,000 forthe change in fair value of the embedded derivative liability. In November 2013, upon conversion of the 2012 Notes into Series A convertible preferredstock, the embedded derivative was reversed.Changes in Fair Value of Warrant LiabilitiesWe recorded changes in the fair value of warrant liabilities of ($0.8) million for the year ended December 31, 2014, compared to ($92,000) for the year endedDecember 31, 2013. In connection with the completion of the IPO in August 2014, all of the then outstanding warrants to purchase convertible preferredstock were exercised. As a result of the exercises, we recorded a $0.8 million loss related to the change in fair value in our consolidated statements ofoperations and comprehensive loss.Loss on Extinguishment of Related Party Convertible NotesIn April 2014, we converted the outstanding balance under our related-party convertible notes of $2.0 million into 295,115 shares of Series B convertiblepreferred stock at 90% of the purchase price paid by other investors, in accordance with the terms of the agreement. As a result, we recorded a loss on theextinguishment of convertible notes of $0.2 million in 2014.In November 2013, we amended the terms of the convertible notes agreement to accelerate their conversion into shares of Series A convertible preferredstock, which we determined represented an extinguishment. As a result, we recorded a loss on the extinguishment of convertible notes of $1.7 million in2013.Deemed DividendIn April 2014, we repurchased 531,208 shares of Series A convertible preferred stock for $4.0 million. The difference between the repurchase price of $7.53per share and original issuance price of $1.45 per share was recorded as a deemed dividend of $3.2 million to a preferred stockholder and effected thecalculation of net loss attributable to common stockholders and net loss per share for the year ended December 31, 2014.Liquidity, Capital Resources and Plan of OperationsWe have not generated positive cash flow or net income from operations since our inception and at December 31, 2015, we had an accumulated deficit of$84.2 million, primarily as a result of research and development and general and administration expenses. On January 13, 2015, we completed a Follow-onOffering and we received net proceeds of approximately $130.6 million, after underwriting discounts, commissions and offering expenses. As ofDecember 31, 2015, we had $221.3 million in cash and cash equivalents and $37.7 million of marketable securities invested in money market funds,certificates of deposit, U.S. Treasury and U.S. government agencies securities with maturities of 12 months or less. We believe that our existing cash and cashequivalents and marketable securities balances as of December 31, 2015 will be sufficient to fund our operations for the foreseeable future and, if theacquisition of Annapurna is consummated, sufficient to fund the combined company’s operations for at least the next 36 months.75 We expect to incur substantial expenditures in the foreseeable future for the development and potential commercialization of our product candidates andongoing internal research and development programs. At this time, we cannot reasonably estimate the nature, timing or aggregate amount of such costs.However, in order to complete our planned preclinical trials and any future clinical trials, and to complete the process of obtaining regulatory approval forour product candidates, as well as to build the sales, marketing and distribution infrastructure that we believe will be necessary to commercialize our productcandidates, if approved, we will require substantial additional funding in the future.If and when we seek additional funding, we will do so through equity or debt financings, collaborative or other arrangements with corporate sources orthrough other sources of financing. Adequate additional funding may not be available to us on acceptable terms or at all. Our failure to raise capital in thefuture could have a negative impact on our financial condition and our ability to pursue our business strategies. In order to complete development andcommercialization of any of our product candidates, we anticipate that we will need to raise substantial additional capital, the requirements of which willdepend on many factors, including: ·the initiation, progress, timing, costs and results of preclinical studies and any clinical trials for our product candidates; ·the outcome, timing of and costs involved in, seeking and obtaining approvals from the Food and Drug Administration (FDA) and otherregulatory authorities, including the potential for the FDA and other regulatory authorities to require that we perform more studies than thosethat we currently expect; ·the ability of our product candidates to progress through clinical development activities successfully; ·our need to expand our research and development activities; ·the rate of progress and cost of our commercialization of our products; ·the cost of preparing to manufacture our products on a larger scale; ·the costs of commercialization activities including product sales, marketing, manufacturing and distribution; ·the degree and rate of market acceptance of any products launched by us or future partners; ·the costs of filing, prosecuting, defending and enforcing any patent claims and other intellectual property rights; ·our need to implement additional infrastructure and internal systems; ·our ability to hire additional personnel; ·our ability to enter into additional collaboration, licensing, commercialization or other arrangements and the terms and timing of sucharrangements; and ·the emergence of competing technologies or other adverse market developments.If we are unable to raise additional funds when needed, we may be required to delay, reduce, or terminate some or all of our development programs andclinical trials. We may also be required to sell or license other technologies or clinical product candidates or programs that we would prefer to develop andcommercialize ourselves.Cash FlowsThe following table sets forth the primary sources and uses of cash for each of the periods presented below: YEARS ENDED DECEMBER 31 (in thousands) 2015 2014 2013 Net cash (used in) provided by: Operating activities $(35,338) $(5,648) $(2,175)Investing activities (41,569) (943) (91)Financing activities 138,860 165,442 2,480 Net increase in cash and cash equivalents $61,944 $158,840 $207 Cash Used in Operating ActivitiesNet cash used in operating activities was $35.3 million, primarily as a result of the net loss of $47.5 million offset by $11.5 million for non-cash chargerelated to stock-based compensation, a $0.2 million non-cash stock compensation charge related to the issuance of warrant, $0.8 million for depreciation andamortization expense, $0.8 million for amortization of premium on marketable securities and $1.2 million for net decrease in operating assets and liabilities.76 Net cash used in operating activities for the year ended December 31, 2014 was $5.6 million, primarily the result of the net loss of $25.4 million offset by the$7.5 million related to the upfront payments received from our research collaboration and license agreement with Regeneron, $9.5 million of non-cashcharges related to stock-based compensation, loss on the extinguishment of related party convertible notes and warrant re-measurement and a $2.9 millionincrease in accounts payable and accrued expenses.Net cash used in operating activities for the year ended December 31, 2013 was $2.2 million, primarily the result of the net loss of $5.3 million offset by$3.0 million of non-cash cash charges related to stock-based compensation, loss on the extinguishment of related party convertible notes and charge oncollaboration acquisition costs associated with sale of Series A convertible preferred stock.Cash Used in Investing ActivitiesNet cash used in investing activities primarily relates to the purchases and maturities of marketable securities for the year ended December 31, 2015.Purchases of property and equipment were $3.0 million, $0.9 million and $0.1 million during the years ended December 31, 2015, 2014 and 2013,respectively. The purchases of property and equipment consisted primarily of acquisition of laboratory equipment to support our research and developmentactivities.Cash Provided by Financing ActivitiesNet cash provided by financing activities for the year ended December 31, 2015 of $138.9 million consisted primarily of $130.6 million net proceeds fromour Follow-on Offering and $8.3 million from sale of common shares.Net cash provided by financing activities for the year ended December 31, 2014 of $165.4 million consisted primarily of $116.5 million of net proceeds fromour IPO and the concurrent private placement in July and August 2014, $0.6 million of proceeds from exercises of warrants, $50.4 million of proceeds fromthe sale of Series B convertible preferred stock, net of expenses, in April 2014, and $2.0 million of related-party convertible notes received in January andApril 2014, offset by $4.0 million used to repurchase Series A convertible preferred stock in April 2014.Net cash provided by financing activities for the year ended December 31, 2013 of $2.5 million consisted primarily of $1.5 million from the borrowing underrelated-party convertible notes as well as $1.0 million in net proceeds from the issuance of Series A convertible preferred stock in November 2013 to apotential collaborator.Contractual Obligations and CommitmentsWe have lease obligations consisting of an operating lease for our operating facility that expires in 2020.The following table summarizes our contractual obligations as of December 31, 2015: PAYMENTS DUE BY PERIOD (in thousands) LESS THAN1 YEAR 1 TO3 YEARS 4 TO5 YEARS MORETHAN5 YEARS TOTAL Operating lease obligations $1,099 $3,488 $403 $— $4,990 The lease agreement provides for an escalation of rent payments each year and will expire on May 8, 2020. We may extend the lease term for up to four years.We are obligated to make future payments to third parties under in-license agreements, including sublicense fees, royalties and payments that become dueand payable on the achievement of certain development and commercialization milestones. As the amount and timing of sublicense fees and the achievementand timing of these milestones are not probable and estimable, such commitments have not been included on our balance sheet or in the contractualobligations tables above.Off-Balance Sheet ArrangementsSince our inception, we have not engaged in any off-balance sheet arrangements, as defined in the rules and regulations of the SEC. 77 Item 7A. Quantitative and Qualitative Disclosures about Market RiskForeign Currency Exchange RiskA portion of our operating expenses are incurred outside the United States and are denominated in foreign currencies and are subject to fluctuations due tochanges in foreign currency exchange rates, particularly changes in the Australian dollar. Additionally, fluctuations in foreign currency exchange rates maycause us to recognize transaction gains and losses in our statement of operations. To date, foreign currency transaction gains and losses have not beenmaterial to our consolidated financial statements, and we have not engaged in any foreign currency hedging transactions. As our international operationsgrow, we will continue to reassess our approach to managing the risks relating to fluctuations in currency rates.Interest Rate RiskWe had cash and cash equivalents and marketable securities of $259.0 million and $159.4 million as of December 31, 2015 and 2014, respectively,consisting of bank deposits that are not interest bearing and money market funds. To date, fluctuations in interest income have not been significant.We do not enter into investments for trading or speculative purposes and have not used any derivative financial instruments to manage our interest rate riskexposure. We have not been exposed to, nor do we anticipate being exposed to, material risks due to changes in interest rates. A hypothetical 10% change ininterest rates during any of the periods presented would not have had a material impact on our consolidated financial statements. Item 8. Financial Statements and Supplementary Data.The financial statements required by this item are set forth beginning at page F-1 of this Annual Report on Form 10-K.Item 9. Changes in and Disagreements With Accountants on Accounting and Financial Disclosure.None.ITEM 9A. CONTROLS AND PROCEDURESEvaluation of disclosure controls and proceduresManagement, including our Chief Executive and Financial Officer and Principal Accounting Officer, evaluated the effectiveness of our disclosure controlsand procedures, as defined in Rules 13a-15(e) and 15d-15(e) under the Exchange Act, as of December 31, 2015. The evaluation of our disclosure controls andprocedures included a review of our processes and implementation and the effect on the information generated for use in this Annual Report on Form 10-K. Inthe course of this evaluation, we sought to identify any material weaknesses in our disclosure controls and procedures to determine whether we had identifiedany acts of fraud involving personnel who have a significant role in our disclosure controls and procedures, and to confirm that necessary corrective action,including process improvements, was taken. This type of evaluation is done quarterly so that our conclusions concerning the effectiveness of these controlscan be reported in our periodic reports filed with the SEC. The overall goals of these evaluation activities are to monitor our disclosure controls andprocedures and to make modifications as necessary. We intend to maintain these disclosure controls and procedures, modifying them as circumstanceswarrant.Based on that evaluation, the Chief Executive and Financial Officer and Principal Accounting Officer concluded that as of December 31, 2015, theCompany’s disclosure controls and procedures were effective to provide reasonable assurance that information required to be disclosed by us in the reportsthat we file or submit under the Exchange Act is (i) recorded, processed, summarized and reported as and when required and (ii) accumulated andcommunicated to our management, including the Chief Executive and Financial Officer and Principal Accounting Officer, as appropriate to allow timelydiscussion regarding required disclosure.Management’s Annual Report on Internal Control Over Financial ReportingOur management is responsible for establishing and maintaining adequate internal control over financial reporting to provide reasonable assurance regardingthe reliability of our financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accountingprinciples.78 Management assessed our internal control over financial reporting as of December 31, 2015, the end of our fiscal year. Management based its assessment oncriteria established in "Internal Control—Integrated Framework (2013)" issued by the Committee of Sponsoring Organizations of the Treadway Commission.Management's assessment included evaluation of such elements as the design and operating effectiveness of key financial reporting controls, processdocumentation, accounting policies, and our overall control environment. This assessment is supported by testing and monitoring performed by our internalaccounting and finance organization.Based on our assessment, management has concluded that our internal control over financial reporting was effective as of December 31, 2015. The results ofmanagement's assessment were reviewed with the Audit Committee.Attestation Report of the Registered Public Accounting FirmThis Annual Report on Form 10-K does not include an attestation report of our registered public accounting firm due to an exemption established by theJOBS Act for “emerging growth companies.”Changes in internal control over financial reportingThere have been no changes in our internal control over financial reporting during the year ended December 31, 2015 that have materially affected or arereasonably likely to materially affect, our internal control over financial reporting.Inherent Limitations on Controls and ProceduresOur management, including the Chief Executive and Financial Officer and Principal Accounting Officer, does not expect that our disclosure controls andprocedures and our internal controls will prevent all error and all fraud. A control system, no matter how well designed and operated, can only providereasonable assurances that the objectives of the control system are met. The design of a control system reflects resource constraints; the benefits of controlsmust be considered relative to their costs. Because there are inherent limitations in all control systems, no evaluation of controls can provide absoluteassurance that all control issues and instances of fraud, if any, within the Company have been or will be detected. As these inherent limitations are knownfeatures of the financial reporting process, it is possible to design into the process safeguards to reduce, though not eliminate, these risks. These inherentlimitations include the realities that judgments in decision-making can be faulty and that breakdowns occur because of simple error or mistake. Controls canbe circumvented by the individual acts of some persons, by collusion of two or more people, or by management override of the control. The design of anysystem of controls is based in part upon certain assumptions about the likelihood of future events. While our disclosure controls and procedures are designedto provide reasonable assurance of achieving their objectives, there can be no assurance that any design will succeed in achieving its stated goals under allfuture conditions. Over time, controls may become inadequate because of changes in conditions or deterioration in the degree of compliance with thepolicies or procedures. Because of the inherent limitations in a cost-effective control system, misstatements due to error or fraud may occur and not bedetected.We intend to review and evaluate the design and effectiveness of our disclosure controls and procedures on an ongoing basis and to improve our controls andprocedures over time and to correct any deficiencies that we may discover in the future. While our Chief Executive and Financial Officer and PrincipalAccounting Officer have concluded that, as of December 31, 2015, the design of our disclosure controls and procedures, as defined in Rule 13a-15(e) underthe Exchange Act, was effective, future events affecting our business may cause us to significantly modify our disclosure controls and procedures.Item 9B. Other Information.Not applicable. 79 PART IIIItem 10. Directors, Executive Officers and Corporate Governance.The information required by this item will be contained in our definitive proxy statement to be filed with the Securities and Exchange Commission pursuantto Regulation 14A in connection with our 2016 Annual Meeting of Stockholders (the Proxy Statement), which is expected to be filed not later than 120 daysafter the end of our fiscal year ended December 31, 2015, under the headings “Executive Officers,” “Election of Directors,” “Corporate Governance,” and “Section 16(a) Beneficial Ownership Reporting Compliance,” and is incorporated herein by reference.We have adopted a written code of business conduct and ethics that applies to our directors, officers and employees, including our principal executiveofficer, principal financial officer, principal accounting officer or controller, or persons performing similar functions. A current copy of the code is posted onthe Corporate Governance section of our website, which is located at www.avalanchebiotech.com. If we make any substantive amendments to, or grant anywaivers from, the code of business conduct and ethics for our principal executive officer, principal financial officer, principal accounting officer, controller orpersons performing similar functions, or any officer or director, we will disclose the nature of such amendment or waiver on our website or in a current reporton Form 8-K.Item 11. Executive Compensation.The information required by this item will be contained in the Proxy Statement under the headings “Executive Compensation” and “DirectorCompensation,” and is incorporated herein by reference.Item 12. Security Ownership of Certain Beneficial Owners and Management and Related Stockholder Matters.The information required by this item will be contained in the Proxy Statement under the headings “Security Ownership of Certain Beneficial Owners andManagement” and “Equity Compensation Plan Information,” and is incorporated herein by reference.Item 13. Certain Relationships and Related Transactions, and Director Independence.The information required by this item will be contained in the Proxy Statement under the headings “Certain Relationships and Related Party Transactions”and “Corporate Governance,” and is incorporated herein by reference.Item 14. Principal Accountant Fees and Services.The information required by this item will be contained in the Proxy Statement under the heading “Ratification of Independent Registered PublicAccounting Firm—Principal Accounting Fees and Services” and is incorporated herein by reference. 80 PART IVItem 15. Exhibits, Financial Statement Schedules.The financial statements schedules and exhibits filed as part of this Annual Report on Form 10-K are as follows:(a)(1) Financial StatementsReference is made to the financial statements included in Item 8 of Part II hereof.(a)(2) Financial Statement SchedulesAll other schedules are omitted because they are not required or the required information is included in the financial statements or notes thereto.(a)(3) ExhibitsReference is made to the Exhibit Index accompanying this Annual Report on Form 10-K. 81 SIGNATURESPursuant to the requirements of Section 13 or 15(d) of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on itsbehalf by the undersigned thereunto duly authorized.Date: March 3, 2016 AVALANCHE BIOTECHNOLOGIES, INC. By: /s/ Paul B. Cleveland Paul B. ClevelandChief Executive Officer and President Power of AttorneyEach person whose individual signature appears below hereby authorizes and appoints Paul B. Cleveland and Michael C. Swartzburg, and each of them, withfull power of substitution and resubstitution and full power to act without the other, as his or her true and lawful attorney-in-fact and agent to act in his or hername, place and stead and to execute in the name and on behalf of each person, individually and in each capacity stated below, and to file any and allamendments to this annual report on Form 10-K, and to file the same, with all exhibits thereto, and other documents in connection therewith, with theSecurities and Exchange Commission, granting unto said attorneys-in-fact and agents, and each of them, full power and authority to do and perform each andevery act and thing, ratifying and confirming all that said attorneys-in-fact and agents or any of them or their or his substitute or substitutes may lawfully door cause to be done by virtue thereof.Pursuant to the requirements of the Securities Exchange Act of 1934, as amended, this annual report on Form 10-K has been signed below by the followingpersons on behalf of the registrant and in the capacities and on the dates indicated. SIGNATURE TITLE DATE /s/ Paul B. Cleveland Chief Executive Officer March 3, 2016Paul B. Cleveland and President(Principal Executive and Financial Officer) /s/ Michael C. Swartzburg Vice President, Finance and Controller March 3, 2016Michael C. Swartzburg (Principal Accounting Officer) /s/ Mark S. Blumenkranz, M.D. Chairman of the Board March 3, 2016Mark S. Blumenkranz, M.D. /s/ John P. McLaughlin Director March 3, 2016John P. McLaughlin /s/ Steven D. Schwartz, M.D. Director March 3, 2016Steven D. Schwartz, M.D. /s/ Paul D. Wachter Director March 3, 2016Paul D. Wachter 82 AVALANCHE BIOTECHNOLOGIES, INC.CONSOLIDATED FINANCIAL STATEMENTSYEARS ENDED DECEMBER 31, 2015, 2014 AND 2013Index PAGESReport of Independent Registered Public Accounting Firm F-2Consolidated Balance Sheets F-3Consolidated Statements of Operations and Comprehensive Loss F-4Consolidated Statements of Convertible Preferred Stock and Stockholders’ Equity (Deficit) F-5Consolidated Statements of Cash Flows F-7Notes to Consolidated Financial Statements F-8 F-1 REPORT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRMThe Board of Directors and Stockholders ofAvalanche Biotechnologies, Inc.Menlo Park, CaliforniaWe have audited the accompanying consolidated balance sheets of Avalanche Biotechnologies, Inc. and its subsidiary (collectively the “Company”) as ofDecember 31, 2015 and 2014, and the related consolidated statements of operations and comprehensive loss, convertible preferred stock and stockholders’equity (deficit), and cash flows for each of the three years in the period ended December 31, 2015. These financial statements are the responsibility of theCompany’s management. 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 thatwe plan and perform the audit to obtain reasonable assurance about whether the financial statements are free of material misstatement. The Company is notrequired to have, nor were we engaged to perform, an audit of their internal control over financial reporting. Our audits included consideration of internalcontrol over financial reporting as a basis for designing audit procedures that are appropriate in the circumstances, but not for the purpose of expressing anopinion on the effectiveness of the Company’s internal control over financial reporting. Accordingly, we express no such opinion. An audit also includesexamining, on a test basis, evidence supporting the amounts and disclosures in the financial statements, assessing the accounting principles used andsignificant estimates made by management, as well as evaluating the overall financial statement presentation. We believe that our audits provide a reasonablebasis for our opinion.In our opinion, such consolidated financial statements present fairly, in all material respects, the financial position of Avalanche Biotechnologies, Inc. and itssubsidiary as of December 31, 2015 and 2014, and the results of their operations and their cash flows for each of the three years in the period endedDecember 31, 2015, in conformity with accounting principles generally accepted in the United States of America./s/ Deloitte & Touche LLPSan Jose, CaliforniaMarch 3, 2016 F-2 AVALANCHE BIOTECHNOLOGIES, INC.CONSOLIDATED BALANCE SHEETS(In thousands, except share and per share data) December 31, December 31, 2015 2014 Assets Current assets: Cash and cash equivalents $221,348 $159,404 Marketable securities 37,732 — Receivable from collaborative partner 449 — Prepaid expenses and other current assets 1,463 874 Total current assets 260,992 160,278 Property and equipment, net 3,187 1,085 Deposit and other long-term assets 140 543 Total assets $264,319 $161,906 Liabilities and stockholders’ equity Current liabilities: Accounts payable $605 $951 Restructuring liabilities 1,013 — Accrued expenses and other current liabilities 4,007 3,707 Deferred rent, current portion 66 — Deferred revenue, current portion 883 813 Total current liabilities 6,574 5,471 Long-term liabilities: Deferred rent, net of current portion 447 306 Deferred revenue, net of current portion 4,706 6,646 Total liabilities 11,727 12,423 Commitments and contingencies (Note 9) Stockholders’ equity: Preferred stock, $0.0001 par value, 5,000,000 shares authorized; no shares issued and outstanding — — Common stock, $0.0001 par value, 300,000,000 shares authorized at December 31, 2015 and 2014; 25,858,722 and 22,754,037 shares issued and outstanding at December 31, 2015 and 2014, respectively 3 2 Additional paid-in capital 336,768 186,186 Accumulated other comprehensive (loss) income (11) 10 Accumulated deficit (84,168) (36,715)Total stockholders’ equity 252,592 149,483 Total liabilities and stockholders’ equity $264,319 $161,906 See accompanying notes to consolidated financial statements. F-3 AVALANCHE BIOTECHNOLOGIES, INC.CONSOLIDATED STATEMENTS OF OPERATIONS AND COMPREHENSIVE LOSS(In thousands, except per share data) YEARS ENDED DECEMBER 31, 2015 2014 2013 Collaboration revenue $2,319 $572 $— Government grant revenue — — 480 Total revenue 2,319 572 480 Operating expenses: Research and development 25,462 16,976 2,151 General and administrative 22,107 7,998 1,783 Restructuring charges 2,573 — — Total operating expenses 50,142 24,974 3,934 Operating loss (47,823) (24,402) (3,454)Other income (expense) Interest expense — (18) (73)Other income (expense), net 370 (21) (4)Change in fair value of embedded derivative — — 18 Change in fair value of warrant liabilities — (759) (92)Loss on extinguishment of related-party convertible notes — (204) (1,671)Total other income (expense), net 370 (1,002) (1,822)Net loss (47,453) (25,404) (5,276)Deemed dividend — (3,230) — Net loss attributable to common stockholders $(47,453) $(28,634) $(5,276)Other comprehensive loss: Net unrealized loss on marketable securities (6) — — Foreign currency translation adjustment (15) (17) 19 Comprehensive loss $(47,474) $(25,421) $(5,257)Net loss per share attributable to common stockholders-basic and diluted $(1.86) $(2.46) $(1.44)Weighted-average common shares outstanding-basic and diluted 25,479 11,651 3,673 See accompanying notes to consolidated financial statements. F-4AVALANCHE BIOTECHNOLOGIES, INC.CONSOLIDATED STATEMENTS OF CONVERTIBLE PREFERRED STOCKAND STOCKHOLDERS’ EQUxxITY (DEFICIT)(In thousands except share and per share data) SERIES ACONVERTIBLEPREFERREDSTOCK$0.0001 PAR VALUE SERIES BCONVERTIBLEPREFERREDSTOCK$0.0001 PAR VALUE COMMON STOCK$0.0001PAR VALUE ADDITIONALPAID-IN ACCUMULATEDOTHERCOMPREHENSIVE ACCUMULATED TOTALSTOCKHOLDERS'EQUITY Shares Amount Shares Amount Shares Amount CAPITAL INCOME (LOSS) DEFICIT (DEFICIT) Balance at December 31, 2012 1,789,618 $2,471 — $— 3,672,885 $— $117 $8 $(3,593) $(3,468)Conversion of the related-partyconvertible notes and accrued interest into Series Aconvertible preferred stock in November 2013 1,419,959 3,730 — — — — — — — — Issuance of Series A convertiblepreferred Stock in November 2013 for cash, net ofissuance costs of $20 689,655 1,791 — — — — — — — — Stock-based compensation expense — — — — — — 515 — — 515 Foreign currency translationadjustment — — — — — — — 19 — 19 Net loss — — — — — — — — (5,276) (5,276)Balance at December 31, 2013 3,899,232 7,992 — — 3,672,885 — 632 27 (8,869) (8,210)Beneficial Conversion feature in related-party convertible notes — — — — — 2,000 — — 2,000 Repurchase of beneficial conversionfeature upon conversion of related-partyconvertible notes — — — — — — (2,000) — — (2,000)Conversion of related-partyconvertible notes into Series B convertible preferred stock inApril 2014 — — 295,115 2,222 — — — — — — Issuance of Series B convertiblepreferred stock in April 2014 for cash, net ofissuance costs of $2,806 — — 7,025,888 50,099 — — — — — — Repurchase of Series A convertiblepreferred stock in April 2014 (531,208) (770) — — — — (788) — (2,442) (3,230)Issuance of common stock warrantsin consideration for services — — — — — — 307 — — 307 Issuance of Series A convertiblepreferred stock upon exercises of convertible preferredstock warrants in July 2014 54,716 79 — — — — 851 — — 851 Conversion of Series A preferredstock to common stock upon initial public offering (3,422,740) (7,301) — — 3,422,740 — 7,301 — — 7,301 Conversion of Series B preferredstock to common stock upon initial public offering — — (7,321,003) (52,321) 7,321,003 1 52,320 — — 52,321 Issuance of common stock uponexercise of warrants — — — — 352,415 — 526 — — 526 Issuance of common stock uponinitial public offering, net of issuance costs of $9,776 in July 2014 — — — — 6,000,000 1 92,223 — — 92,224 Issuance of common stock uponprivate placement in July 2014 — — — — 588,235 — 10,000 — — 10,000 Issuance of common stock uponexercise of option by underwriters, net of issuance costsof $1,071 in August 2014 — — — — 900,000 — 14,229 — — 14,229 Stock-based compensation expense — — — — — — 8,567 — — 8,567 Common stock issued upon exerciseof stock options — — — — 496,759 — 18 — — 18 Foreign currency translationadjustments — — — — — — — (17) — (17)Net loss — — — — — — — — (25,404) (25,404)Balance at December 31, 2014 — — — — 22,754,037 2 186,186 10 (36,715) 149,483 F-5AVALANCHE BIOTECHNOLOGIES, INC.CONSOLIDATED STATEMENTS OF CONVERTIBLE PREFERRED STOCKAND STOCKHOLDERS’ EQUITY (DEFICIT)(In thousands except share and per share data) SERIES ACONVERTIBLEPREFERREDSTOCK$0.0001 PARVALUE SERIES BCONVERTIBLEPREFERREDSTOCK$0.0001 PARVALUE COMMON STOCK$0.0001PAR VALUE ADDITIONALPAID-IN ACCUMULATEDOTHERCOMPREHENSIVE ACCUMULATED TOTALSTOCKHOLDERS'EQUITY Shares Amount Shares Amount Shares Amount CAPITAL INCOME (LOSS) DEFICIT (DEFICIT) Balance at December 31, 2014 — — — — 22,754,037 2 186,186 10 (36,715) 149,483 Issuance of common stock, net ofissuance costs of $11,099 — — — — 2,599,375 1 138,953 — — 138,954 Issuance of common stock warrants inconsideration for services — — — — — — 218 — — 218 Stock-based compensation expense — — — — — — 11,505 — — 11,505 Common stock issued upon exercise ofstock options — — — — 399,434 — 188 — — 188 Common stock issued under employeestock purchase plan — — — — 19,577 — 145 — — 145 Common stock issued upon release ofrestricted stock units — — — — 132,397 — — — — — Restricted stock surrendered for taxes — — — — (46,098) — (427) — — (427)Net unrealized loss on marketablesecurities — — — — — — — (6) — (6)Foreign currency translationadjustments — — — — — — — (15) — (15)Net loss — — — — — — — — (47,453) (47,453)Balance at December 31, 2015 — — — — 25,858,722 3 336,768 (11) (84,168) 252,592 F-6 AVALANCHE BIOTECHNOLOGIES, INC.CONSOLIDATED STATEMENTS OF CASH FLOWS(In thousands) Years Ended December 31, 2015 2014 2013 Cash flows from operating activities: Net loss $(47,453) $(25,404) $(5,276)Adjustments to reconcile net loss to net cash used in operating activities: Depreciation and amortization 812 162 26 Loss on disposal of property and equipment 21 — — Stock-based compensation expense 11,505 8,567 515 Non-cash research and development expense 218 — — Non-cash interest expense — 18 53 Amortization of debt issuance costs — — 20 Change in fair value of embedded derivative liability — — (18)Amortization of premium on marketable securities 780 — — Change in fair value of warrant liabilities — 759 92 Loss on extinguishment of related-party convertible notes — 204 1,671 Non-cash collaboration acquisition costs associated with sale of Series A convertible preferred stock — — 812 Changes in operating assets and liabilities: Accounts receivable, net (6) 8 (7)Prepaid expenses and other current assets (531) (624) (293)Deposit (3) 7 (144)Accounts payable (312) (6) 286 Accrued expenses and other current liabilities 724 2,904 80 Restructuring liabilities 1,013 — — Deferred revenue (2,313) 7,459 — Deferred rent 207 298 8 Net cash used in operating activities (35,338) (5,648) (2,175)Cash flows from investing activities: Purchases of marketable securities (88,427) — — Maturities of marketable securities 49,850 — — Purchases of property and equipment (2,992) (943) (91)Net cash used in investing activities (41,569) (943) (91)Cash flows from financing activities: Proceeds from public offering of common stock, net 138,954 106,453 — Proceeds from sale of common stock to collaborative partner — 10,000 — Proceeds from issuance of Series A convertible preferred stock — — 1,000 Expenses related to issuance of Series A convertible preferred stock — — (20)Proceeds from issuance of Series B convertible preferred stock — 52,905 — Expenses related to issuance of Series B convertible preferred stock — (2,540) — Proceeds from issuance of related-party convertible notes — 2,000 1,500 Repurchase of Series A convertible preferred stock — (4,000) — Proceeds from exercises of warrants — 606 — Proceeds from issuance of common stock pursuant to option exercises 188 18 — Taxes paid related to net share settlement of restricted stock units (427) — — Proceeds from employee stock purchase plan 145 — — Net cash provided by financing activities 138,860 165,442 2,480 Effect of foreign currency exchange rate on cash and cash equivalents (9) (11) (7)Net increase in cash and cash equivalents 61,944 158,840 207 Cash and cash equivalents at beginning of period 159,404 564 357 Cash and cash equivalents at end of period $221,348 $159,404 $564 Supplemental schedule of noncash investing and financing information Conversion of related-party convertible notes payable to convertible preferred stock $— $2,000 $2,059 Warrants issued in connection with issuance of Series B convertible preferred stock $— $266 $— Warrants issued in connection with license agreements $218 $42 $— Fixed assets in accounts payable and current liabilities $178 $235 $— Deferred stock issuance costs $— $379 $50 F-7 AVALANCHE BIOTECHNOLOGIES, INC.Notes to Consolidated Financial Statements 1. Description of the businessNature of Business—Avalanche Biotechnologies, Inc. (the “Company”, “we” or “us”) was incorporated in Delaware on July 17, 2006, and is headquarteredin Menlo Park, California. The Company is a gene therapy company committed to discovering and developing novel medicines that can offer life-changingtherapeutic benefit to patients suffering from chronic or debilitating disease. Since the Company’s inception, it has devoted its efforts principally toperforming research and development activities, including early clinical trials, filing patent applications, obtaining regulatory approvals, hiring personnel,and raising capital to support these activities.The Company has not generated any revenue from the sale of products since its inception. The Company has experienced net losses since its inception andhas an accumulated deficit of $84.2 million as of December 31, 2015. The Company expects to incur losses and have negative net cash flows from operatingactivities as it expands its portfolio and engages in further research and development activities, particularly conducting preclinical studies and clinical trials.The Company believes that it has sufficient funds to continue operations for the foreseeable future.Initial Public and Follow-on Offerings—On August 5, 2014, the Company completed its initial public offering (IPO) of shares of its common stock. As aresult, the following transactions were recorded in the Company’s consolidated financial statements on August 5, 2014 (the third quarter of 2014): ·the sale of 6,900,000 shares of common stock, including 900,000 from the exercise by the underwriters of their option to purchase additionalshares, at an offering price of $17.00 per share, for net proceeds of $106.5 million, after deducting the underwriters’ discounts, commissions andoffering expenses; ·concurrent with the IPO, the private placement of 588,235 shares of common stock to Regeneron Pharmaceuticals, Inc. (Regeneron), pursuantto the Regeneron agreement signed in May 2014, at the offering price of $17.00 per share for gross proceeds of $10.0 million and nounderwriting discounts or commissions; ·immediately prior to the completion of the IPO, all the outstanding shares of the Company’s convertible preferred stock were converted into10,689,027 shares of common stock; and ·immediately prior to the completion of the IPO, all then outstanding warrants for convertible preferred stock and common stock were exercisedinto 407,131 shares of common stock for proceeds of $0.6 million.Follow-on Offerings—In January 2015, the Company completed a public offering of 2,369,375 shares of its common stock (Follow-on Offering), whichincluded 359,918 shares the Company issued pursuant to the underwriters’ exercise of their option to purchase additional shares, and the Company receivednet proceeds of approximately $130.6 million, after underwriting discounts, commissions and offering expenses.In March 2015, (i) the Company received net proceeds of approximately $8.3 million, after discounts and other issuance costs, which resulted from the sale of230,000 common shares, and (ii) the Company issued 230,000 common shares to a stockholder that exercised warrants prior to the initial public offering. 2. Summary of significant accounting policies and basis of presentationUse of Estimates—The preparation of financial statements in conformity with accounting principles generally accepted in the United States of America (U.S.GAAP) requires management to make estimates and assumptions that affect the reported amounts of assets, liabilities, and the disclosure of contingent assetsand liabilities at the date of the financial statements and the reported amounts of income and expenses during the reporting period. The Company basesestimates and assumptions on historical experience when available and on various factors that it believes to be reasonable under the circumstances. On anongoing basis, the Company evaluates its estimates and assumptions, including those related to clinical trial accruals, stock-based compensation, incometaxes, fair value of common stock warrant and, prior to the IPO, fair value of embedded derivative liability, fair value of convertible preferred stock and fairvalues of common and convertible preferred stock warrants. The Company’s actual results may differ from these estimates under different assumptions orconditions. There have been no significant changes from the Company’s original estimates in any periods presented.F-8 Principles of Consolidation—The Company’s consolidated financial statements have been prepared in accordance with U.S. GAAP and include the accountsof the Company and its wholly-owned subsidiary in Australia. All intercompany transactions and balances have been eliminated in consolidation.Foreign Currency Translation—The Company’s consolidated financial statements are prepared in U.S. dollars. Its foreign subsidiary uses the Australiandollar as its functional currency and maintains its records in the local currency. Assets and liabilities are re-measured at exchange rates in effect at the end ofthe reporting period. Equity is measured at historical rates and income and expenses are re-measured at average exchange rates for the reporting period. Theresulting foreign currency translation adjustment is recorded in accumulated other comprehensive (loss) income in the consolidated balance sheets and in theconsolidated statements of operations and comprehensive loss. Transactions denominated in foreign currency are translated at exchange rates at the date oftransaction with foreign currency gains (losses) recorded in other income (expense), net in the consolidated statements of operations and other comprehensiveloss.Cash and Cash Equivalents—The Company considers all highly liquid investments purchased with original maturities of three months or less at the date ofpurchase to be cash equivalents. Cash and cash equivalents include cash held in banks and money market accounts. Cash equivalents are stated at fair value.Marketable Securities—All marketable securities, which consist of debt securities and certificates of deposit, have been classified as “available for sale” andare carried at fair value. Unrealized gains and losses, net of any related tax effects, are excluded from earnings and are included in other comprehensive lossand reported as a separate component of stockholders’ equity until realized. Realized gains and losses and declines in value judged to be other thantemporary, if any, on available-for-sale securities are included in other income (expense), net. The cost of securities sold is based on the specific-identification method. The amortized cost of securities is adjusted for amortization of premiums and accretion of discounts to maturity. Interest on short-terminvestments is included in interest income. In accordance with the Company’s investment policy, management invests to diversify credit risk and onlyinvests in securities with high credit quality, including U.S. government securities.The Company regularly evaluates whether declines in the fair value of its investments below their cost are other than temporary. The evaluation includesconsideration of the cause of the impairment, including the creditworthiness of the security issuers, the number of securities in an unrealized loss position, theseverity and duration of the unrealized losses, whether the Company has the intent to sell the securities, and whether it is more likely than not that theCompany will be required to sell the securities before the recovery of their amortized cost basis. If the Company determines that the decline in fair value of aninvestment is below its accounting basis and this decline is other than temporary, the Company would reduce the carrying value of the security it holds andrecords a loss for the amount of such decline. The Company has not recorded any realized losses or declines in value judged to be other than temporary on itsinvestments.Deposit—Deposit in the amount of $0.1 million as of December 31, 2015 and 2014 represents amounts paid in connection with the Company’s facility leaseagreement and recorded as a long-term asset.Segment Reporting—The Company operates and manages its business as one reporting and operating segment, which is the business of developing andcommercializing gene therapeutics. The Company’s chief executive officer, who is the chief operating decision maker, reviews financial information on anaggregate basis for purposes of allocating resources and evaluating financial performance.Concentrations of Credit Risk and Other Uncertainties—Financial instruments that potentially subject us to significant concentrations of credit riskconsists primarily of cash and cash equivalents. As of December 31, 2015, substantially all of the Company’s cash and cash equivalents was deposited inaccounts at four financial institutions, and amounts may exceed federally insured limits. Management believes that the Company is not exposed tosignificant credit risk due to the financial strength of the depository institutions in which the financial instrument are held.The Company is subject to certain risks and uncertainties, including, but not limited to changes in any of the following areas that the Company believescould have a material adverse effect on future financial position or results of operations: ability to obtain future financing; regulatory approval and marketacceptance of, and reimbursement for, the Company’s product candidates; performance of third-party clinical research organizations and manufacturers;development of sales channels; protection of the intellectual property; litigation or claims against the Company based on intellectual property, patent,product, regulatory or other factors; and the Company’s ability to attract and retain employees necessary to support the growth.Property and Equipment—Property and equipment are recorded at cost, net of accumulated depreciation and amortization. Depreciation is recorded usingthe straight-line method over the estimated useful lives of the assets, generally three to five years. Leasehold improvements are capitalized and amortizedover the shorter period, expected life or lease term. Major replacements and improvements are capitalized, while general repairs and maintenance areexpensed as incurred.F-9 Impairment of Long-Lived Assets—The Company evaluates the carrying amount of its long-lived assets whenever events or changes in circumstancesindicate that the assets may not be recoverable. An impairment loss would be recognized when estimated future cash flows expected to result from the use ofthe asset and its eventual disposition is less than the carrying amount of the asset. To date, there have been no such impairment losses.Deferred Offering Costs—The Company capitalizes deferred offering costs, which primarily consist of direct incremental legal and accounting fees relatingto its public offerings. The Company offsets the deferred offering costs against its public offering proceeds upon the consummation of its public offerings. Asof December 31, 2015 and 2014, $0 and $0.4 million of deferred offering costs were capitalized in deposit and other long-term assets on the Company’sconsolidated balance sheets, respectively. Derivative Instruments—The Company had recorded convertible preferred stock warrants issued to investors and note holders as derivative liabilities. Theconvertible preferred stock warrants were initially recorded at fair value, with gains and losses arising from changes in fair value recognized in other income(expense) in the consolidated statements of operations and comprehensive loss at each period end while such instruments were outstanding and classified aslong-term liabilities. In connection with the completion of the Company’s IPO in August 2014, all of the then outstanding warrants to purchase convertiblepreferred stock were exercised. As a result of the exercises, the Company recorded a $0.8 million loss related to the change in fair value in the Company’sconsolidated statements of operations and comprehensive loss and reclassified the fair value of $0.9 million to additional paid-in capital.The Company had also recorded as a derivative liability the Company’s obligation to issue common stock warrants in connection with license agreements asthe terms of the warrants were not fixed due to potential adjustments in the exercise price. The derivative liability associated with the common stock warrantswas initially recorded at fair value, with gains and losses arising from changes in fair value recognized in the consolidated statements of operations andcomprehensive loss at each period end while such instruments are classified as liabilities. In March 2014, the liability terminated upon the issuance ofcommon stock warrant and was recorded to additional paid-in capital.Both the preferred stock and common stock warrant liabilities were valued using a Black-Scholes valuation model (refer to Note 11).Immediately prior to the completion of the IPO, all then outstanding warrants to purchase preferred stock and common stock were exercised, and theoutstanding liability was reversed.Revenue Recognition—The Company has primarily generated contract revenue through a research and collaboration arrangement with a strategic partner forthe development and commercialization of product candidates, and a license agreement related to the licensing of certain of the Company’s intellectualproperty. Additionally, the Company has historically generated grant revenue from research and development grant programs.The Company recognizes revenue in accordance with Accounting Standards Codification Topic 605, Revenue Recognition (ASC 605). Accordingly, revenueis recognized for each unit of accounting when all of the following criteria are met: ·Persuasive 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.Amounts received prior to satisfying the revenue recognition criteria are recorded as deferred revenue in the Company’s consolidated balance sheets.Amounts expected to be recognized as revenue within the 12 months following the balance sheet date are classified as deferred revenue, current portion.Amounts not expected to be recognized as revenue within the 12 months following the balance sheet date are classified as deferred revenue, net of currentportion.Collaboration and License RevenueIn May 2014, the Company entered into a research collaboration and license agreement with Regeneron to discover, develop and commercialize novel genetherapy products for the treatment of ophthalmologic diseases. The collaboration covers up to eight distinct therapeutic targets (collaboration targets). TheCompany and Regeneron will collaborate during the initial research period of three years that can be extended by Regeneron for up to an additional fiveyears. During the research period, Regeneron has the option to obtain an exclusive worldwide license for a collaboration target’s further development bygiving written notice to the Company and paying $2.0 million per target. If Regeneron exercises its option, it will be responsible for all further developmentand commercialization of the target. The Company is then eligible to receive contingent payments of up to $80.0 million uponF-10 achievement of certain development and regulatory milestones for product candidates directed toward each collaboration target, for a combined total of up to$640.0 million in potential milestone payments for product candidates directed toward all eight collaboration targets, plus a royalty in the low- to mid-single-digits on worldwide net sales of collaboration products.For any two collaboration targets, the Company has an option to share up to 35% of the worldwide product candidate development costs and profits. If theCompany exercises this option, the Company will not be eligible for milestone and royalty payments discussed above but rather the Company will sharedevelopment costs and profits with Regeneron.The agreement will expire with respect to each collaboration target upon the earlier of the (a) expiration of the research term if the option right has not beentriggered by the end of the research term or (b) expiration of the option right if the option right has not been exercised by Regeneron. If the option right hasbeen exercised, the agreement in connection with each collaboration target will expire upon expiration of all payment obligations by Regeneron. In addition,the agreement, or Regeneron’s rights to any target development under the agreement, may terminate early under the following situations: ·Regeneron may terminate the agreement for convenience at any time on a target by target basis or in totality upon a 30-day notice. ·Each party can terminate the agreement if another party commits a material breach or material default in performance of its obligations andsuch breach or default is not cured within 60 days. ·The agreement is automatically terminated upon initiation of any bankruptcy proceedings, reorganization or dissolution of either party. ·The Company can terminate the agreement upon 30-day notice if Regeneron challenges the validity, scope or enforceability of any Companypatent.In connection with the agreement, Regeneron also acquired a time-limited right of first negotiation for a potential license to develop and commercializeAVA-101, the Company’s gene therapy product currently under development and undergoing a Phase 2a clinical trial. If and when such negotiation issuccessful, the Company and Regeneron will enter into a separate agreement for AVA-101.Under the terms of the agreement, the Company received initial upfront non-refundable cash payments of $8.0 million that included payment for researchlicense fees, prepaid collaboration research costs and the time-limited right of first negotiation for AVA-101. As the agreement provides for multipledeliverables, the Company accounts for this agreement as a multiple elements revenue arrangement. If deliverables did not appear to have a standalone value,they were combined with other deliverables into a unit of accounting with standalone value. The Company allocated the $8.0 million to the relative fairvalue of the two units of accounting identified in the arrangement. The Company expects to recognize $6.5 million for the research licenses and relatedresearch and development services ratably over the associated period of performance, which is the maximum research period of eight years. As there is nodiscernible pattern of performance and/or objectively measurable performance measures do not exist, the Company will recognize revenue on a straight-linebasis over the eight year performance period. The remaining $1.5 million allocated to the second unit of accounting for the rights of first negotiation forAVA-101 was deferred. On November 2, 2015, Regeneron notified the Company that it is not exercising this right of first negotiation and the Companyrecognized the entire $1.5 million as revenue in 2015.As original research budget was fully used in the fourth quarter of 2015, the Company and Regeneron will agree on the reimbursement of additional researchexpenses annually. The Company will invoice for services performed quarterly. These additional research fees will be added to the research licenses andrelated research and development services unit of accounting, recorded as deferred revenue and recognized to revenue over the remaining research term. TheCompany recognized $0.8 million as revenue related to this unit of accounting during the year ended December 31, 2015, recorded $5.6 million of deferredrevenue, including $0.9 million as current portion, and $0.4 million as receivable from collaboration partner as of December 31, 2015. The Company also recorded $30,000 license revenue in 2014 related to the licensing of certain of its intellectual property under a licensing agreemententered into during February 2014.Government GrantsFor the years ending December 31, 2013, the Company recognized $0.5 million of government grant revenue. No government grant revenue was recorded in2015 and 2014 as we completed the work performed under the grant in 2013. We intend to continue to evaluate pursuing additional grant opportunities on acase-by-case basis.F-11 Research and Development Expenses—Research and development expenses are charged to expense as incurred. Research and development expensesinclude certain payroll, stock compensation and other personnel-related expenses, laboratory supplies, consulting costs, external contract research anddevelopment expenses, and allocated overhead, including rent, equipment depreciation and utilities. Advance payments for goods or services for futureresearch and development activities are deferred and expensed as the goods are delivered or the related services are performed.The Company estimates preclinical studies and clinical trial expenses based on the services performed pursuant to contracts with research institutions andclinical research organizations that conduct and manage preclinical studies and clinical trials on the Company’s behalf. In accruing service fees, theCompany estimates the time period over which services will be performed and the level of effort to be expended in each period. These estimates are based oncommunications with the third party service providers and the Company’s estimates of accrued expenses and on information available at each balance sheetdate. If the actual timing of the performance of services or the level of effort varies from the estimate, the Company will adjust the accrual accordingly. Therehave been no significant changes from the Company’s original estimates in any of the periods presented.The Company received tax credits from the Australian government in connection with certain research costs incurred in conducting research by theCompany’s Australian subsidiary. These refunds do not depend on the taxable income or tax position of the Company and therefore the Company does notaccount for them under an income tax accounting model. The Company recognizes such tax credits in the period when qualified expenses are incurred as areduction of research expenses. The Company has recorded the reimbursement of $0.1 million, $0.1 million and $0.8 million from the Australian taxauthorities as a reduction of research and development expense in the consolidated statements of operations and comprehensive loss in the years endedDecember 31, 2015, 2014 and 2013, respectively.Fair Value Measurements—Fair value is defined as the price that would be received to sell an asset or paid to transfer a liability in an orderly transactionbetween market participants at the measurement date. As such, fair value is a market-based measurement that should be determined based on assumptions thatmarket participants would use in pricing an asset or liability. The carrying amounts of the Company’s financial instruments, including cash and cashequivalents, prepaid and other current assets, accounts payable, accrued expenses and other warrant liabilities approximate its fair value due to their short-term maturities. Refer to Note 5 for the methodologies and assumptions used in valuing financial instruments.Stock-Based Compensation Expense—Stock-based compensation expense related to awards to employees is measured at the grant date based on the fairvalue of the award. The fair value of the award that is ultimately expected to vest is recognized as expense on a straight-line basis over the requisite serviceperiod, which is generally the vesting period. The expense recognized for the portion of the award that is expected to vest has been reduced by an estimatedforfeiture rate. The forfeiture rate is determined at the time of grant and revised, if necessary, in subsequent periods if actual forfeitures differ from thoseestimates.The Company uses the Black-Scholes valuation model as the method for determining the estimated fair value of stock-based awards.Expected Term—The expected term assumption represents the period that the Company’s stock-based awards are expected to be outstanding and isdetermined using the simplified method.Expected Volatility—Expected volatility is estimated using comparable public companies volatility for similar terms.Expected Dividend—The Black-Scholes valuation model calls for a single expected dividend yield as an input. The Company has never paiddividends and has no plans to pay dividends.Risk-Free Interest Rate—The risk-free interest rate is based on the U.S. Treasury zero-coupon issues in effect at the time of grant for periodscorresponding with the expected term of option.Stock-based compensation expense related to awards to non-employees is recognized based on the then-current fair value at each measurement date over theassociated service period of the award, which is generally the vesting term, using the accelerated attribution method. The fair value of non-employee stockoptions is estimated using the Black-Scholes valuation model with assumptions generally consistent with those used for employee stock options, with theexception of the expected term, which is the remaining contractual life at each measurement date. Refer to Note 12 for more information on assumptions usedin estimated stock-based compensation expense.Income Taxes—The Company accounts for income taxes using the asset and liability method. The Company recognizes deferred tax assets and liabilities forthe expected future tax consequences of events that have been included in the financial statements or tax returns. Deferred tax assets and liabilities aredetermined based on the difference between the financial statement and tax basis of assets and liabilities using enacted tax rates in effect for the year in whichthe differences are expected to reverse.F-12 In evaluating the ability to recover its deferred income tax assets, the Company considers all available positive and negative evidence, including itsoperating results, ongoing tax planning and forecasts of future taxable income on a jurisdiction-by-jurisdiction basis. In the event the Company determinesthat it would be able to realize its deferred income tax assets in the future in excess of their net recorded amount, it would make an adjustment to thevaluation allowance that would reduce the provision for income taxes. Conversely, in the event that all or part of the net deferred tax assets are determinednot to be realizable in the future, an adjustment to the valuation allowance would be charged to earnings in the period when such determination is made. Asof December 31, 2015 and 2014, the Company has recorded a full valuation allowance on its deferred tax assets.Tax benefits related to uncertain tax positions are recognized when it is more likely than not that a tax position will be sustained during an audit. Interest andpenalties related to unrecognized tax benefits are included within the provision for income tax.Comprehensive Loss—Comprehensive loss is comprised of net loss, deemed dividend to a preferred stockholder and other comprehensive income (loss).Other comprehensive income (loss) consists of foreign currency translation adjustments related to translation of the financial statements of the Australiansubsidiary and unrealized gain (loss) on marketable securities. The Company did not have reclassifications from other comprehensive income (loss) to theincome (loss) during 2015. Basic and Diluted Net Loss Per Share—Basic net loss per common share is computed by dividing the net loss attributable to common stockholders by theweighted-average number of common shares outstanding during the period. Diluted net loss per common share is computed by dividing the net loss by theweighted-average number of common shares and dilutive common share equivalents outstanding during the period. Because the Company has reported a netloss attributable to common stockholders for all periods presented, diluted net loss per common share is the same as basic net loss attributable to commonstockholders per common share for those periods. While shares of the convertible preferred stock were outstanding they were considered to be participatingsecurities as they were entitled to participate in undistributed earnings with shares of common stock. Due to net losses in all periods presented, there is noimpact on net loss per share calculation in applying the two-class method since the participating securities have no legal requirement to share in any losses.Recently Issued Accounting Pronouncements—In August 2014, the Financial Accounting Standards Board (FASB) issued Accounting Standard Update(ASU) 2014-15, Presentation of Financial Statements—Going Concern (Subtopic 205-40): Disclosure of Uncertainties about an Entity’s Ability to Continueas a Going Concern, requiring management to evaluate whether events or conditions could impact an entity’s ability to continue as a going concern and toprovide disclosures if necessary. Management will be required to perform the evaluation within one year after the date that the financial statements are issued.Disclosures will be required if conditions give rise to substantial doubt and the type of disclosure will be determined based on whether management’s planswill be able to alleviate the substantial doubt. The accounting standards update will be effective for the first annual period ending after December 15, 2016,and for annual periods and interim periods thereafter with early application permitted. The adoption of this ASU is not expected to impact the Company’sfinancial position or results of operations.In May 2014, the FASB issued ASU No. 2014-09, Revenue from Contracts with Customers (Topic 606), which supersedes the revenue recognitionrequirements in ASC 605, Revenue Recognition. This ASU is based on the principle that revenue is recognized to depict the transfer of goods or services tocustomers in an amount that reflects the consideration to which the entity expects to be entitled in exchange for those goods or services. The ASU alsorequires additional disclosure about the nature, amount, timing and uncertainty of revenue and cash flows arising from customer contracts, includingsignificant judgments and changes in judgments and assets recognized from costs incurred to obtain or fulfill a contract. Companies may adopt ASU 2014-09using a full retrospective approach or report the cumulative effect as of the date of adoption. In July 2015, the FASB voted to approve a one-year deferral ofthe effective date to December 15, 2017 for interim and annual reporting periods beginning after that date and permitted early adoption of the standard, butnot before the original effective date of December 15, 2016. The Company is evaluating the application of this ASU, but has not yet determined the potentialeffects it may have on the Company’s consolidated financial statements.In April 2015, the FASB issued ASU No. 2015-05, Customer’s Accounting of Fees Paid in Cloud Computing Arrangement, guidance on accountingfor fees paid in cloud computing arrangements. If a cloud computing arrangement includes a software license, then the customer should accountfor the software license element of the arrangement consistent with the acquisition of other software licenses. If a cloud computing arrangementdoes not include a software license, the customer should account for the arrangement as a services contract. All software licenses recognizedunder this guidance will be accounted for consistent with other licenses of intangible assets. The guidance becomes effective for the Company forthe first quarter of fiscal 2016. The Company expects to adopt this standard prospectively for to arrangements entered into or materially modified afterthe effective date. The adoption of this standard is not expected to have a material effect on the Company's consolidated financial statements. F-13 In November 2015, FASB issued ASU No. 2015-17, Balance Sheet Classification of Deferred Taxes, requiring all deferred tax assets andliabilities, and any related valuation allowance, to be classified as non-current on the balance sheet. The classification change for all deferredtaxes as non-current simplifies entities’ processes as it eliminates the need to separately identify the net current and net non-current deferred taxasset or liability in each jurisdiction and allocate valuation allowances. The Company elected to retrospectively adopt this accounting standard inthe beginning of the Company’s fourth quarter of fiscal 2015. The adoption of this standard did not have any impact on the Company’sconsolidated financial statements due to full valuation allowance recorded on the Company’s deferred taxes.On January 5, 2016, the FASB issued ASU 2016-01, Recognition and Measurement of Financial Assets and Financial Liabilities, which amends theguidance in U.S. GAAP on the classification and measurement of financial instruments. Although the ASU retains many current requirements, it significantlyrevises an entity’s accounting related to (1) the classification and measurement of investments in equity securities and (2) the presentation of certain fairvalue changes for financial liabilities measured at fair value. The ASU also amends certain disclosure requirements associated with the fair value of financialinstruments. The new standard is effective for fiscal years and interim periods within those fiscal years beginning after December 15, 2017, with earlyadoption permitted for certain changes. The Company has not yet determined the potential effects the new standard will have of the Company’s consolidatedfinancial statements. 3. Restructuring ChargesOn December 22, 2015, the Company implemented a restructuring plan to reduce operating costs and better align its workforce with the needs of its businessfollowing its decision to not initiate the Phase 2b clinical trial for AVA-101 in the second half of 2015. The plan resulted in a reduction of approximately20% of the Company’s workforce, or 15 employees. Affected employees are eligible to receive severance payments. The plan will also trigger acceleratedvesting of certain of the affected employees’ restricted stock unit awards (RSUs).In connection with the restructuring, the Company estimates aggregate restructuring charges of approximately $2.6 million in the fourth quarter of 2015related to one-time termination severance payments and other employee-related benefits, including approximately $1.0 million of stock-based compensationexpense related to the acceleration of RSUs. The Company recorded the $2.6 million as restructuring charges on the consolidated statements of operationsand comprehensive loss for the year ended December 31, 2015.The following table summarizes the restructuring activities for the year ended December 31, 2015 (in thousands): One-TimeTerminationBenefits Non-Cash ChargeRelated toAcceleration ofRSUs Total Restructuring liability as of December 31, 2014 $— $— $— Costs incurred and recorded as restructuring charges 1,524 1,049 2,573 Cash payments (511) — (511)Non-cash settlements — (1,049) (1,049)Restructuring liability as of December 31, 2015 $1,013 $— $1,013 The remaining liability related to the plan as of December 31, 2015 was $1.0 million and is expected to be paid out in the first half of 2016. F-14 4. Cash Equivalents and Marketable SecuritiesThe following is a summary of the cash equivalents and marketable securities: December 31, 2015 AmortizedCost Basis UnrealizedGains UnrealizedLoses EstimatedFair Value Money Market Funds $208,588 $— $— $208,588 Certificates of Deposit 1,680 — — 1,680 U.S. Treasury Securities 15,046 — (4) 15,042 U.S. Government Agency Securities 21,012 — (2) 21,010 246,326 — (6) 246,320 Less: Cash Equivalents (208,588) — — (208,588)Total Marketable Securities $37,738 $— $(6) $37,732 The Company did not hold any available-for-sale securities as of December 31, 2014. As of December 31, 2015, the contractual maturities of the Company’smarketable securities were less than one year. Management determined that the gross unrealized losses of $6,000 on the Company’s marketable securities asof December 31, 2015 were temporary in nature. The Company currently does not intend to sell these securities prior to maturity and does not consider theseinvestments to be other-than-temporarily impaired at December 31, 2015. There were no sales of available-for-sale securities in any of the periods presented. 5. Fair Value Measurements and Fair Value of Financial InstrumentsThe authoritative guidance on fair value measurements establishes a three-tier fair value hierarchy for disclosure of fair value measurements as follows:Level 1: Quoted prices in active markets for identical assets or liabilities.Level 2: Observable inputs other than Level 1 prices, 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 are classified in their entirety based on the lowest level of input that is significant to the fair value measurement.The Company’s assessment of the significance of a particular input to the fair value measurement in its entirety requires management to make judgments andconsider factors specific to the asset or liability.The fair value of Level 1 securities are determined using quoted prices in active markets for identical assets. Level 1 securities consist of highly liquid moneymarket funds. Financial assets and liabilities are considered Level 2 when their fair values are determined using inputs that are observable in the market orcan be derived principally from or corroborated by observable market data such as pricing for similar securities, recently executed transactions, cash flowmodels with yield curves, and benchmark securities. In addition, Level 2 financial instruments are valued using comparisons to like-kind financialinstruments and models that use readily observable market data as their basis. U.S. Treasury securities, U.S. government agency securities and certificate ofdeposit are valued primarily using market prices of comparable securities, bid/ask quotes, interest rate yields and prepayment spreads and are included inLevel 2.In certain cases where there is limited activity or less transparency around inputs to valuation, securities are classified as Level 3 within the valuationhierarchy. Level 3 liabilities that were measured at estimated fair value on a recurring basis consist of common and preferred stock warrant liabilities.The estimated fair values of the outstanding common and preferred stock warrant liabilities were measured using the Black-Scholes valuation model (refer toNote 11). Due to the nature of valuation inputs, the valuation of the warrants is considered a Level 3 measurement. The convertible preferred stock andcommon stock warrants were exercised immediately prior to the IPO, in August 2014.During the periods presented, the Company has not changed the manner in which it values liabilities that are measured at estimated fair value using Level 3inputs. There were no transfers within the hierarchy during the years ended December 31, 2015, 2014 and 2013.F-15 The following table summarizes, for assets and liabilities recorded at fair value, the respective fair value and the classification by level of input within the fairvalue hierarchy as described above (in thousands): Quoted Prices Significant Other Significant Total In Active Markets Observable Inputs Unobservable Inputs Carrying Value (Level 1) (Level 2) (Level 3) December 31, 2015 Assets: Money Market Funds $208,588 $208,588 $— $— Certificates of Deposit 1,680 — 1,680 — U.S. Treasury Securities 15,042 — 15,042 — U.S. Government Agency Securities 21,010 — 21,010 — Total Cash Equivalents and Marketable Securities $246,320 $208,588 $37,732 $— December 31, 2014 Assets: Money Market Funds $40,000 $40,000 $— $— Total Cash Equivalents $40,000 $40,000 $— $— The following table provides a summary of changes in the estimated fair value of the Company’s warrants liabilities and embedded derivative liabilitymeasured at estimated fair value using significant Level 3 inputs (in thousands): Convertible Preferred Stock Common Stock WarrantLiability (1) WarrantLiability (2) Balance as of January 1, 2014 $91 $42 Issuance of common stock warrant — (41)Change in fair value 760 (1)Exercises (851) — Balance as of December 31, 2014 $— $— (1)In July 2014, all of the then outstanding warrants to purchase convertible preferred stock and common stock were exercised immediately prior to thecompletion of the IPO.(2)In March 2014, the common stock warrant was issued and was recorded to additional paid-in capital. 6. Significant AgreementsUniversity of California—In May 2010, the Company entered into a license agreement, as amended, with the Regents of University of California (Regents)for exclusive rights in the United States to certain patents owned by the Regents. Under the terms of the agreement, the Company paid an up-front license feeof $100,000 and agreed to reimburse the Regents for patent-related expenses. The Company is obligated to pay the Regents royalties on net sales, if any, aswell as an annual maintenance fee of $50,000 beginning in the calendar year after the first commercial sale of a licensed product and milestone paymentsrelated to the achievement of certain clinical and regulatory goals totaling up to $900,000 for the first indication and $500,000 for each additional indicationfor up to two additional indications. Through December 31, 2015, none of these goals had been achieved, and no milestones were payable. 7. Property and Equipment, NetProperty and equipment, net consists of the following (in thousands): December 31,2015 December 31,2014 Computer equipment and software $234 $142 Laboratory equipment 3,041 1,012 Furniture and fixtures 552 73 Leasehold improvements 351 48 Total property and equipment 4,178 1,275 Less accumulated depreciation and amortization (991) (190)Property and equipment, net $3,187 $1,085F-16 Depreciation and amortization expense related to property and equipment was $812,000, $162,000 and $26,000 for the years ending December 31, 2015,2014 and 2013, respectively. 8. Accrued Expenses and Other Current LiabilitiesAccrued expenses and other current liabilities consist of the following (in thousands): December 31,2015 December 31,2014 Employees' compensation $2,047 $1,509 Accrued preclinical costs 642 1,005 Accrued professional fees 1,177 231 Accrued clinical and process development costs 101 942 Other 40 20 Total accrued expenses and other current liabilities $4,007 $3,707 9. Commitments and ContingenciesFacility Lease AgreementThe Company leases its’ office building under a non-cancelable lease agreement, which expires on May 8, 2020. The Company may extend this lease for upto four years. The lease agreement provides for an escalation of rent payments each year. The Company records rent expense on a straight-line basis over theterm of the lease.As of December 31, 2015, future minimum commitments under the Company’s facility operating lease were as follows (in thousands): YEARS ENDED DECEMBER 31, 2015 TOTAL LEASECOMMITMENTS 2016 $1,099 2017 1,129 2018 1,162 2019 1,197 2020 403 Total minimum lease payments $4,990 Rent expense recognized under the operating lease, including additional rent charges for utilities, parking, maintenance, and real estate taxes was$1,525,000, $662,000 and $53,000 for the years ended December 31, 2015, 2014 and 2013, respectively.Collaborations and License AgreementsThe Company is party to various agreements, principally relating to licensed technology that requires future payments relating to milestones or royalties onfuture sales of specified products. Through December 31, 2015, none of the goals had been achieved under the license agreements and no milestones wereaccrued or payable. Because the achievement of these milestones is not fixed and determinable, such commitments have not been included on theCompany’s consolidated balance sheets. Aggregate annual maintenance fee’s payments were approximately $0.1 million for each of the years endedDecember 31, 2015 and 2014.Guarantees and IndemnificationsIn the normal course of business, the Company enters into contracts and agreements that contain a variety of representations and warranties and provide forindemnification for certain liabilities. The exposure under these agreements is unknown because it involves claims that may be made against the Company inthe future but have not yet been made. To date, the Company has not paid any claims or been required to defend any action related to its indemnificationobligations. However, the Company may record charges in the future as a result of these indemnification obligations. The Company also has indemnificationobligations to its directors and executive officers for specified events or occurrences, subject to some limits, while they are serving at the Company’s requestin such capacities. There have been no claims to date and the Company believes the fair value of these indemnification agreements is minimal. Accordingly,the Company has not recorded any liabilities for these agreements as of December 31, 2015.F-17 Legal ProceedingsFrom time to time, the Company may become involved in litigation and other legal actions. The Company estimates the range of liability related to anypending litigation where the amount and range of loss can be estimated. The Company records its best estimate of a loss when the loss is considered probable.Where a liability is probable and there is a range of estimated loss with no best estimate in the range, the Company records a charge equal to at least theminimum estimated liability for a loss contingency when both of the following conditions are met: (i) information available prior to issuance of the financialstatements indicates that it is probable that a liability had been incurred at the date of the financial statements and (ii) the range of loss can be reasonablyestimated.In July 2015, three putative securities class action lawsuits were filed against the Company and certain of its officers in the United States District Court for theNorthern District of California, each on behalf of a purported class of persons and entities who purchased or otherwise acquired the Company’s publiclytraded securities between July 31, 2014 and June 15, 2015. The lawsuits assert claims under the Exchange Act and Securities Act and allege that thedefendants made materially false and misleading statements and omitted allegedly material information related to, among other things, the Phase 2a clinicaltrial for AVA-101 and the prospects of AVA-101. The complaints seek unspecified damages, attorneys’ fees and other costs.In December 2015, a putative securities class action lawsuit was filed against the Company, the Company’s board of directors, underwriters of the Company’sJanuary 13, 2015, follow-on public stock offering, and two of the Company’s institutional stockholders, in the Superior Court of the State of California forthe County of San Mateo. The complaint alleges that, in connection with the Company’s follow-on stock offering, the defendants violated the Securities Actof 1933, as amended, by allegedly making materially false and misleading statements and by allegedly omitting material information related to the Phase 2aclinical trial for AVA-101 and the prospects of AVA-101. The complaint seeks unspecified compensatory and rescissory damages, attorneys’ fees and othercosts.The Company believes that the claims in the asserted actions are without merit and intend to defend the lawsuits vigorously. The Company expects to incurcosts associated with defending the actions. While the Company has various insurance policies related to the risks associated with its business, includingdirectors’ and officers’ liability insurance policies, there is no assurance that the Company will be successful in its defense of the actions, that its insurancecoverage, which contains a self-insured retention, will be sufficient, or that its insurance carriers will cover all claims or litigation costs. Due to the inherentuncertainties of litigation, the Company cannot reasonably predict at this time the timing or outcomes of these matters or estimate the amount of losses, orrange of losses, if any, or their effect, if any, on its consolidated financial statements. 10. Convertible Preferred StockIn connection with the completion of the IPO in August 2014, all outstanding shares of Series A and Series B convertible preferred stock were converted into10,689,027 shares of common stock on a one-for-one basis.In November 2013, the Company converted then outstanding convertible note into series A convertible preferred stock and recorded a $1.7 million loss onextinguishment of related-party convertible notes in the consolidated statement of operations and comprehensive loss. The Company also recorded a chargeof $0.8 million associated with the intrinsic value of the convertible preferred Series A shares issued to a potential collaborator, which was recorded ingeneral and administrative expense in the consolidated statements of operations and comprehensive loss for the year ended December 31, 2013.In April 2014, the Company completed a Series B convertible preferred stock financing, pursuant to which then outstanding convertible notes wereconverted into 295,115 shares of Series B convertible preferred stock at a conversion price of $6.78, which was equal to 90% of the original issuance price of$7.53 per share. At the time of the conversion, the Company recorded a $0.2 million loss on extinguishment of related-party convertible notes in theconsolidated statements of operations and comprehensive loss and a repurchase of beneficial conversion feature of $2.0 million as credit to additional paid-incapital.In April 2014, the Company repurchased 531,208 shares of Series A convertible preferred stock for $4.0 million. The difference between the repurchase priceof $7.53 and original issuance price of $1.45 was recorded as a deemed dividend of $3.2 million to a preferred stockholder and effected the calculation of netloss attributable to common stockholders and net loss per share for the year ended December 31, 2014. F-18 11. WarrantsIn connection with an amendment to the Lions Eye Institute (LEI) research agreement in August 2012 the Company agreed to issue to LEI a warrant topurchase 25,000 shares of common stock. The Company estimated the fair value of the obligation to issue this warrant to be approximately $5,000, whichwas recorded as research and development expense and common stock warrant liability. Until the Company issued the warrant, it classified it as a commonstock warrant liability and re-measured the fair value at the end of each reporting period. In March 2014, the Company issued the common stock warrant toLEI with an exercise price of $2.75 per share, at which time the issued common stock warrant was reclassified to additional paid-in capital.In May 2014, the Company issued a warrant to purchase 63,415 shares of common stock with an exercise price of $6.83 to a financial services firm inconnection with the Series B convertible preferred stock financing completed in April 2014. This warrant was exercisable immediately and expired on theearlier of the Company’s IPO or May 15, 2019. The Company estimated the fair value of this warrant to be approximately $0.3 million which was recorded asexpenses related to issuance of Series B convertible preferred stock. The fair value of the warrant was calculated using the Black-Scholes valuation model,and was based on the common stock fair value of $6.83 per share, contractual term of the warrant of 5 years, a risk-free interest rate of 1.55%, an expectedvolatility of 75% and a 0% expected dividend yield.All of the above warrants to purchase common stock and preferred stock were exercised for cash of $0.6 million prior to the completion of the IPO in August2014. As a result of the exercises of the warrants to purchase preferred stock, the Company recorded a $0.8 million loss related to the change in fair value inthe Company’s consolidated statements of operations and comprehensive loss and reclassified the fair value of $0.9 million to permanent equity. The fairvalue of the warrants to purchase preferred stock was calculated using the Black-Scholes valuation model, and was based on the common stock fair value of$17.00 per share, contractual term of the warrants of 1.1 years, a risk-free interest rate of 0.1%, an expected volatility of 70% and a 0% expected dividendyield.On October 15, 2015, in connection with an amendment to the research agreement between the Company and the LEI, the Company issued to LEI a warrantto purchase 40,000 shares of common stock with an exercise price of $10.51 per share. This common stock warrant is exercisable immediately, and expires onOctober 15, 2020. The Company estimated the fair value of this warrant to be approximately $0.2 million which was recorded as debit to research anddevelopment expenses and credit to additional paid-in capital upon issuance. The fair value of the warrant was calculated using the Black-Scholes valuationmodel, and was based on the closing price of common stock on the issuance date of $8.35 per share, exercise price of $10.51, contractual term of the warrantof 5 years, a risk-free interest rate of 1.34%, an expected volatility of 75% and a 0% expected dividend yield.The amendment also provides for the issuance of an additional warrant to LEI to purchase up to 40,000 shares of the Company's common stock uponcompletion of the 36 month follow-up on the Phase 2a AVA-101 clinical study (Contingent Warrant). As of December 31, 2015, none of the shares subject tothe Contingent Warrant were vested and exercisable. The Company is accounting for this warrant as a stock-based award issued for service and estimated thefair value of the costs associated with the service performed to be approximately $30,000 which was recorded as debit to research and development expensesand credit to additional paid-in capital in 2015. The fair value of the Contingent Warrant was calculated using the Black-Scholes valuation model, and wasbased on the closing price of common stock on December 31, 2015 of $9.52 per share, expected term of the warrants of 6.6 years, a risk-free interest rate of1.1%, an expected volatility of 79% and a 0% expected dividend yield. 12. Stock Option PlansOn December 26, 2006, the Company adopted the 2006 Equity Incentive Plan, which was amended by the board of directors on November 15, 2012 (2006Plan). The 2006 Plan allowed for the granting of ISOs and NSOs to the employees, members of the board of directors and consultants of the Company. ISOswere granted only to the Company’s employees, including officers and directors who are also employees. NSOs were granted to the employees andconsultants. In July 2014, the Company’s board of directors and its stockholders approved the establishment of the 2014 Equity Incentive Award Plan (2014Plan), effective upon the date upon which the registration statement for the IPO was declared effective, which was July 30, 2014. As of the date of the IPO, theCompany reserved for issuance under the 2014 Plan a total of 2,088,332 shares of its common stock, plus any additional shares that would otherwise return tothe 2006 Plan as a result of forfeiture, termination or expiration of awards previously granted under the 2006 Plan. Options may no longer be issued under the2006 Plan after July 30, 2014. In addition, the 2014 Plan provides for annual increases in the number of shares available for issuance thereunder on the firstbusiness day of each fiscal year, beginning with 2015, equal to four percent (4%) of the number of shares of the Company’s common stock outstanding as ofsuch date or a lesser number of shares as determined by the Company’s board of directors.As of December 31, 2015, a total of 8,454,368 shares of common stock were authorized for issuance and 2,137,787 shares were available for future grantsunder the 2014 Plan.F-19 Options under the 2014 Plan may be granted for periods of up to 10 years and at prices no less than 100% of the estimated fair value of the shares on the dateof grant as determined by the board of directors, provided, however, that the exercise price of an ISO and NSO granted to a 10% stockholder may not be lessthan 110% of the estimated fair value of the shares on the date of grant. Options granted to employees and non-employees generally vest ratably over fouryears.In July 2014, the Company’s board of directors and its stockholders approved the establishment of the 2014 Employee Stock Purchase Plan (2014 ESPP). TheCompany reserved for issuance 208,833 shares of its common stock and provided for annual increases in the number of shares available for issuance on thefirst business day of each fiscal year, beginning in 2015, equal to the lesser of one percent (1%) of the number of shares of the Company’s common stockoutstanding as of such date or a number of shares as determined by the Company’s board of directors. During 2015, 19,577 shares were issued under the 2014ESPP. A total of 416,796 shares of common stock have been reserved for issuance under the 2014 ESPP and were available for issuance under the 2014 ESPPas of December 31, 2015.As of December 31, 2015, there was $0.1 million of unrecognized compensation cost related to the ESPP, which is expected to be recognizedover a weighted-average period of 0.4 years.The following table summarizes option activity under the Company’s stock plans and related information: WEIGHTED- NUMBER OF WEIGHTED- AVERAGE REMAINING AGGREGATE SHARE AVERAGE EXERCISE CONTRACTUAL LIFE INTRINSIC VALUE (a) (IN THOUSANDS) PRICE (IN YEARS) (IN THOUSANDS) Balance at January 1, 2015 4,932 $5.61 8.2 $238,653 Options granted 1,603 $21.91 Options exercised (400) $0.47 Options cancelled (641) $22.77 Balance at December 31, 2015 5,494 $8.75 7.8 28,618 Vested and expected to vest as of December 31, 2015 5,447 $8.64 7.8 28,524 Exercisable as of December 31, 2015 2,818 $3.45 6.9 21,978 (a)The aggregate intrinsic value is calculated as the difference between the options exercise price and the closing price of common stock of $9.52 pershare as of December 31, 2015.In December 2015, the Company granted a stock option to purchase 910,000 shares of common stock shares to its new Chief Executive Officer. The optionwas granted as an inducement grant and outside of the 2014 Plan.The total intrinsic value of options exercised during the year ended December 31, 2015 and 2014 were $11.2 million and $15.7 million, respectively. Therewere no options exercised in 2013.The following table summarizes information with respect to stock options outstanding and currently exercisable and vested.As of December 31, 2015: OPTIONS OUTSTANDING OPTIONS EXERCISABLE AND VESTED WEIGHTED- WEIGHTED- NUMBER AVERAGE REMAINING NUMBER AVERAGE REMAINING RANGE OF OUTSTANDING CONTRACTUAL LIFE OUTSTANDING CONTRACTUAL LIFE EXERCISE PRICES (IN THOUSANDS) (IN YEARS) (IN THOUSANDS) (IN YEARS) $0.15-$0.27 2,644 6.5 2,156 6.4 $0.28-$2.95 429 8.1 190 8.1 $2.96-$11.50 1,284 9.5 193 8.4 $11.51-$35.00 707 8.8 243 8.7 $35.01-$58.92 430 9.2 36 9.0 F-20 The Company has recorded aggregate stock-based compensation expense related to the issuance of stock option awards to employees and nonemployees inthe consolidated statement of operations and comprehensive loss as follows: (in thousands) YEARS ENDED DECEMBER 31 2015 2014 2013 Research and development $4,009 $7,331 $362 General and administrative 6,447 1,236 153 Restructuring charges 1,049 — — Total share-based compensation $11,505 $8,567 $515 Departure of Key Executive OfficerEffective July 23, 2015, Thomas W. Chalberg, Jr., Ph.D., resigned as the Chief Executive Officer and President of the Company and as a member of the boardof directors. In connection with Dr. Chalberg’s resignation and his engagement as a consultant and Scientific Advisor, Dr. Chalberg and the Company enteredinto a Separation Agreement and General Release, dated July 23, 2015 (the Separation Agreement). Under the Separation Agreement, Dr. Chalberg isproviding consulting services to the Company and serving as a member of the Company’s Scientific Advisory Board until the first anniversary of July 23,2015 (the consulting period). During the consulting period, subject to the terms and conditions of the Separation Agreement, Dr. Chalberg is paid a monthlyfee at the same rate as his salary in effect prior to his resignation and is continuing to vest in outstanding equity awards held by him at the same rates in effectfor such awards prior to his resignation. Shares of the Company’s common stock subject to his outstanding equity awards that were otherwise scheduled tovest following the expiration of the consulting period will not vest under any circumstances and were forfeited and cancelled on July 23, 2015. As a result,the Company recorded a one-time share-based payment charge of $2.4 million related to the cancellation of unvested stock options in July 2015.Restricted Stock Units (RSUs)RSUs are share awards that entitle the holder to receive freely tradable shares of the Company’s common stock upon vesting. The fair value of RSUs is basedupon the closing sales price of the Company’s common stock on the grant date. RSUs granted to employees generally vest over a two-to-four year period.The following table summarizes the RSUs activity under the Company’s stock plans and related information: Weighted-Average Number of Grant-Date Shares(in thousands) Fair Value(in dollars) Outstanding at December 31, 2014 — $— Granted 851 $13.85 Vested and released (132) $10.52 Forfeited (87) $24.21 Outstanding at December 31, 2015 632 $13.07 There were no RSUs granted prior to April 2015. The total fair value of RSUs that vested was $1.4 million for the year ended December 31, 2015. The numberof restricted stock units vested includes shares of common stock that we withheld on behalf of employees to satisfy the minimum statutory tax withholdingrequirements. As of December 31, 2015, there was $6.2 million of unrecognized compensation cost related to unvested RSUs that we expect to recognize overa weighted-average period of 2.0 years.F-21 Stock Options Granted to EmployeesFor the years ended December 31, 2015, 2014 and 2013, the Company recorded $11,764,000, $1,672,000 and $136,000, respectively, of stock-basedcompensation expense related to employees options. The fair value of each option issued to employees was estimated at the date of grant using the Black-Scholes valuation model with the following weighted-average assumptions: Options Employee Stock Purchase Plan YEARS ENDED DECEMBER 31 YEARS ENDED DECEMBER 31 2015 2014 2013 2015 2014 2013 Expected volatility 79% 79% 80% 74% — — Expected term (in years) 6.1 6.0 6.0 0.5 — — Expected dividend yield — — — — — — Risk-free interest rate 1.7% 1.9% 1.0% 0.1% — — The weighted-average fair values of options granted during fiscal years 2015, 2014 and 2013 were $15.91, $9.56 and $0.37, respectively.As of December 31, 2015, there was $14.2 million of unrecognized stock-based compensation expense related to employees’ awards that is expected to berecognized over a weighted-average period of 2.7 years.Stock Options Granted to Non-EmployeesStock-based compensation expense related to stock options granted to nonemployees is recognized as the stock options are earned. The Company believesthat the estimated fair value of the stock options is more readily measurable than the fair value of the services rendered. For the years ended December 31,2015, 2014 and 2013, the Company recorded $(259,000), $6,895,000 and $379,000, respectively, of stock-based compensation expense related to non-employees options.We used the following weighted-average assumptions in estimating non-employees stock-based compensation expense: YEARS ENDED DECEMBER 31 2015 2014 2013 Option grants: Expected volatility 81% 79% 79%Expected term (in years) 3.3 7.5 7.9 Expected dividend yield — — — Risk-free interest rate 1.0% 2.2% 1.8% As of December 31, 2015, there was $1.1 million of unrecognized stock-based compensation expense related to non-employees’ awards that is expected to berecognized over a weighted-average period of 1.5 years.Fair Value of Common StockIn determining the exercise prices for options granted, the Company’s board of directors has considered the fair value of the common stock as of each grantdate. Prior to the IPO, the fair value of the common stock underlying the stock options was determined by the board of directors at each award grant datebased upon a variety of factors, including the results obtained from an independent third party valuation, the Company’s financial position and historicalfinancial performance, the status of technological developments within the Company’s products, the composition and ability of the current managementteam, an evaluation or benchmark of the Company’s competition, the current business climate in the marketplace, the illiquid nature of the common stock,arm’s-length sales of the Company’s capital stock (including convertible preferred stock), the effect of the rights and preferences of the preferred stockholdersand the prospects of a liquidity event, among others. After the completion of the Company’s IPO in August 2014, the fair value of the common stock is basedon the closing price of the common stock on the date of grant. 13. 401(k) Savings PlanThe Company established a defined-contribution savings plan under Section 401(k) of the Code. The 401(k) Plan covers all employees who meet definedminimum age and service requirements, and allows participants to defer a portion of their annual compensation on a pretax basis. The amount ofcontributions that the Company made to the 401(k) Plan during the year ended December 31, 2015 and 2014 was $0.1 million and $25,000, respectively F-22 14. Income TaxesNo income tax benefit or expense was recorded for the years ended December 31, 2015, 2014 and 2013.The following table presents domestic and foreign components of loss before provision for income taxes (in thousands): FOR THE YEARS ENDED DECEMBER 31, 2015 2014 2013 U.S. $(47,235) $(25,006) $(5,031)Foreign (218) (398) (245)Loss before income taxes $(47,453) $(25,404) $(5,276) A reconciliation of income tax expense computed at the statutory federal income tax rate of 34% to income taxes as reflected in the financial statements is asfollows (in thousands): FOR THE YEARS ENDED DECEMBER 31, 2015 2014 2013 Federal income tax expense at statutory rate $(16,134) $(8,637) $(1,794)Loss on extinguishment of related-party convertible notes — 69 568 Non-deductible foreign research expenses 45 85 26 Non-deductible stock compensation 1,418 161 46 Non-deductible expenses 295 285 28 Research and development tax credits (910) (304) (93)Change in valuation allowance 15,277 8,349 1,209 Foreign rate differential 9 (8) 10 Total tax expense (benefit) $— $— $— Deferred income taxes reflect the net tax effects of temporary differences between the carrying amounts of assets and liabilities for financial reportingpurposes and the amounts used for income tax purposes. The following table presents significant components of the Company’s deferred tax assets (inthousands): AS OF DECEMBER 31, 2015 2014 2013 Deferred tax assets: Net operating loss carryforwards $19,889 $8,526 $1,876 Accruals, reserve and other 2,681 222 109 Stock-based compensation 4,328 3,032 183 Tax credit carryforwards 1,945 659 145 Property and equipment — — 2 Intangibles 45 24 223 Other — 24 (1)Total deferred tax assets before valuation allowance 28,888 12,487 2,537 Valuation allowance (28,839) (12,457) (2,537)Total deferred tax assets 49 30 — Deferred tax liabilities: Property and equipment (49) (30) — Total deferred tax liabilities (49) (30) — Net deferred tax assets $— $— $— The Company has evaluated the positive and negative evidence bearing upon the realizability of its deferred tax assets. Based on the Company’s history ofoperating losses, the Company has concluded that it is more likely than not that the benefit of its deferred tax assets will not be realized. Accordingly, theCompany has provided a full valuation allowance for deferred tax assets as of December 31, 2015, 2014 and 2013. The valuation allowance increasedapproximately $16.4 million, $9.9 million and $1.4 million during the years ended December 31, 2015, 2014 and 2013, respectively, due to net operatinglosses.F-23 As of December 31, 2015, the Company had U.S. federal NOL carryforwards of approximately $79.4 million to offset future federal income. NOLs expire atvarious years beginning with 2026. As of December 31, 2015, the Company also had U.S. state NOL carryforwards of approximately $56.5 million to offsetfuture state income. U.S. State NOLs expire at various years beginning with 2016. At December 31, 2015, the Company also had approximately $0.2 millionof foreign net operating loss carryforwards which may be available to offset future foreign income; these carryforwards do not expire.As a result of certain realization requirements of Accounting Standard Codification Topic 718, Compensation – Stock Compensation (ASC 718), the table ofdeferred tax assets and liabilities does not include certain deferred tax assets as of December 31, 2015 that arose directly from tax deductions related to equitycompensation that are greater than the compensation recognized for financial reporting. Equity will be increased by $10.5 million if and when such deferredtax assets are ultimately realized. We use ASC 740 ordering when determining when excess tax benefits have been realized.As of December 31, 2015, the Company had federal research and development tax credit carryforwards of approximately $1.9 million available to reducefuture tax liabilities which expire at various years beginning with 2032. As of December 31, 2015, the Company had state credit carryforwards ofapproximately $1.7 million available to reduce future tax liabilities which do not expire.Under Section 382 of the Internal Revenue Code of 1986, as amended (Code), the Company’s ability to utilize NOL carryforwards or other tax attributes,such as research tax credits, in any taxable year may be limited if we have experienced an “ownership change.” Generally, a Section 382 ownership changeoccurs if there is a cumulative increase of more than 50 percentage points in the stock ownership of one or more stockholders or groups of stockholders whoowns at least 5% of a corporation’s stock within a specified testing period. Similar rules may apply under state tax laws. We believe that we have experiencedat least two ownership changes under Section 382, which will result in limitations in the Company’s ability to utilize net operating losses and credits. Inaddition, we may experience ownership changes as a result of the Company’s initial public offering in August 2014, future offerings or other changes in theownership of the Company’s stock. As a result, the amount of the NOLs and research and credit carryforwards presented in the Company’s financialstatements could be limited and may expire unutilized.The Company files income tax returns in the United States, and state and foreign jurisdictions. The federal, state and foreign income tax returns are openunder the statute of limitations subject to tax examinations for the tax years ended December 31, 2011 through December 31, 2015. To the extent theCompany has tax attribute carryforwards, the tax years in which the attribute was generated may still be adjusted upon examination by the Internal RevenueService, state or foreign tax authorities to the extent utilized in a future period.The Company has total unrecognized tax benefits as of December 31, 2015, 2014 and 2013 of approximately $1,568,000, $471,000 and $43,000respectively. No amount of the unrecognized tax benefits, if recognized, would reduce the Company’s annual effective tax rate because the benefits are in theform of deferred tax assets for which a full valuation allowance has been recorded. The Company does not anticipate a significant change to its unrecognizedtax benefits over the next twelve months. A reconciliation of the unrecognized tax benefits is as follows (in thousands): FOR THE YEARS ENDED DECEMBER 31, 2015 2014 2013 Unrecognized tax benefits as of the beginning of the year $471 $43 $5 Increase related to prior year tax provisions 172 272 7 Increase related to current year tax provisions 925 156 31 Unrecognized tax benefits as of the end of the year $1,568 $471 $43 The Company recognizes interest and penalties related to uncertain tax positions in income tax expense. As of December 31, 2015 and 2014, the Companyhad no accrued interest or penalties related to uncertain tax positions and no amounts have been recognized in the Company’s consolidated statements ofoperations and comprehensive loss. There are no ongoing examinations by taxing authorities at this time. F-24 15. Net Loss Per ShareThe following table sets forth the computation of the basic and diluted net loss per share for the years ended December 31, 2015, 2014 and 2013 (inthousands, except per share data): FOR THE YEARS ENDED DECEMBER 31, 2015 2014 2013 Net loss $(47,453) $(25,404) $(5,276)Deemed dividend — (3,230) — Net loss attributable to common stockholders (47,453) (28,634) (5,276)Weighted-average common shares outstanding used to calculate basic and diluted net loss per common share: Net shares outstanding 25,479 11,651 3,673 Basic and diluted net loss per share attributable to common stockholders $(1.86) $(2.46) $(1.44) The following common stock equivalents outstanding at the end of the periods presented were excluded from the calculation of diluted net loss per share forthe periods indicated because including them would have had an anti-dilutive effect: AS OF DECEMBER 31, 2015 2014 2013 Options to purchase common stock 5,494 4,932 3,640 RSUs 632 — — Warrants to purchase common stock 40 — 264 Series A preferred stock — — 3,899 Warrants to purchase preferred stock — — 55 6,166 4,932 7,858 F-25 16. Selected Quarterly Financial Information (Unaudited)The following amounts are in thousands, except per share amounts: Quarterly Results of Operations Quarter End March 31,2015 June 30,2015 September 30,2015 December 31,2015 (In thousands, except per share amounts) Revenue $203 $203 $953 $960 Total operating expenses (2)(3) $(9,764) $(10,085) $(15,154) $(15,139)Net loss $(9,509) $(9,766) $(14,084) $(14,094)Basic and diluted net loss per share $(0.38) $(0.38) $(0.55) $(0.55) Quarterly Results of Operations Quarter End March 31,2014 June 30,2014 September 30,2014 December 31,2014 (In thousands, except per share amounts) Revenue $30 $135 $204 $203 Total operating expenses $(1,636) $(4,588) $(8,144) $(10,606)Net loss $(1,663) $(5,094) $(8,256) $(10,391)Deemed dividend (1) $— $(3,230) $— $— Net loss attributable to common stockholders $(1,663) $(8,324) $(8,256) $(10,391)Basic and diluted net loss per share $(0.45) $(2.27) $(0.50) $(0.46) (1)In April 2014, we repurchased 531,208 shares of Series A convertible preferred stock for $4.0 million. The difference between the repurchase price of$7.53 per share and original issuance price of $1.45 per share was recorded as a deemed dividend of $3.2 million to a preferred stockholder andeffected the calculation of net loss attributable to common stockholders and net loss per share for the year ended December 31, 2014.(2)In connection with the restructuring, the Company recorded estimated restructuring charges of approximately $2.6 million related to one-timetermination severance payments and other employee-related benefits, including approximately $1.0 million of stock-based compensation expenserelated to the acceleration of RSUs in December 2015.(3)In July 2015, the Company’s then Chief Executive officer resigned and some of his stock-based awards were forfeited and cancelled, which thatresulted in a $2.4 million of additional stock-based compensation expense recorded in general and administrative expenses in the Company’sconsolidated financial statements.Basic and diluted net loss per share is computed independently for each of the quarters presented. Therefore, the sum of quarterly basic and diluted per shareamounts may not equal annual basic and diluted net loss per share amounts. 17. Subsequent EventProposed Transaction with Annapurna Therapeutics SASOn January 29, 2016, the Company entered into a definitive agreement (the Agreement) with Annapurna Therapeutics SAS (Annapurna), a privately-heldbiopharmaceutical company focused on advancing gene therapy for unmet medical needs, certain shareholders of Annapurna (the Contributors), andShareholder Representative Services LLC, a Colorado limited liability company, acting as the representative of the Contributors. Upon the terms and subjectto the conditions described in the Agreement, the Company will acquire all of the issued and outstanding capital stock of Annapurna in exchange forapproximately 13.1 million newly issued shares of the Company’s common stock. The outstanding options or other rights to purchase capital stock ofAnnapurna (Annapurna Options) will be converted into options relating to approximately 4.7 million shares of the Company’s common stock (CompanyOptions). Each Company Option will relate to the whole number of shares of Company’s common stock (rounded down to the nearest whole share) equal tothe number of the shares of the common stock of Annapurna subject to such Annapurna Option multiplied by 9.5615 (as may be adjusted pursuant to theAgreement, the Exchange Ratio). Each Company Option will have substantially the same terms, including the same termination date and vesting schedule, asthe Annapurna Option for which it is being exchanged, and the exercise price per share for such Company Option will be equal to the exercise price per shareof such Annapurna Option divided by the Exchange Ratio. The transaction requires the Company’s stockholders’ vote and is expected to close in the secondquarter of 2016.F-26 The Agreement may be terminated by either party under certain circumstances as defined in the Agreement, including, among others, if the closing of theacquisition has not occurred by the six-month anniversary of the execution of the Agreement, subject to certain exceptions, or if the Company’s stockholdersfail to approve the issuance of the Company’s stock (Company Stock Issuance).The Agreement provides for the Company to pay to Annapurna a reverse termination fee of $4,000,000 if the Agreement is terminated by either party for theCompany’s failure to obtain the required vote of the Company’s stockholders for the Company Stock Issuance or if the Agreement is terminated byAnnapurna upon a certain defined triggering event. The Agreement also provides for the Company to pay to Annapurna termination fee of $6,000,000 (lessthe $4,000,000 termination fee described above, if paid) if the Agreement is terminated by either party for the failure to obtain the required vote of theCompany’s stockholders or by Annapurna upon certain other triggering events, and either (x) the Company consummates within twelve months of suchtermination an alternative transaction that was publicly announced or communicated in writing to the Company’s board of directors prior to such terminationor (y) the Company consummates within six months of such termination an alternative transaction that is first publicly announced or otherwisecommunicated in writing to the Company’s board of directors following the termination of the Agreement while an alternative transaction described in theforegoing clause (x) remains outstanding and not withdrawn. F-27 EXHIBIT INDEX INCORPORATED BY REFERENCE EXHIBITNUMBER EXHIBIT DESCRIPTION FORM DATE EXHIBITNUMBER PROVIDEDHEREWITH 2.1 Acquisition Agreement, dated as of January 29, 2016, by andamong Avalanche Biotechnologies, Inc., AnnapurnaTherapeutics SAS, the Contributors identified therein, andShareholder Representative Services LLC as theContributors’ Representative. 8-K February 1, 2016 2.1 3.1 Amended and Restated Certificate of Incorporation. 8-K August 6, 2014 3.1 3.2 Amended and Restated Bylaws. 8-K August 6, 2014 3.2 4.1 Reference is made to Exhibits 3.1 through 3.2. 4.2 Form of Common Stock Certificate. S-1/A July 25, 2014 4.1 4.3 Amended and Restated Investor Rights Agreement, dated asof April 16, 2014, by and between AvalancheBiotechnologies, Inc. and certain of its stockholders. S-1/A July 18, 2014 4.5 10.1† Exclusive License for Use of Recombinant Gene DeliveryVectors for Treating or Preventing Diseases of the Eye, datedas of May 27, 2010, by and between AvalancheBiotechnologies, Inc. and The Regents of the University ofCalifornia. S-1/A July 28, 2014 10.1 10.2† Amendment #1 to: Exclusive License for Use ofRecombinant Gene Delivery Vectors for Treating orPreventing Diseases of the Eye, effective as of September 17,2013, by and between Avalanche Biotechnologies, Inc. andThe Regents of the University of California. S-1 June 30, 2014 10.2 10.3† Research Collaboration and License Agreement, dated as ofMay 1, 2014, by and between Avalanche Biotechnologies,Inc. and Regeneron Pharmaceuticals, Inc. S-1/A July 28, 2014 10.3 10.4(#) Avalanche Biotechnologies, Inc. Amended and Restated2006 Equity Incentive Plan. S-1 June 30, 2014 10.4 10.5(#) Form of Stock Option Grant Notice and Stock OptionAgreement under the Amended and Restated 2006 EquityIncentive Plan. S-1/A July 25, 2014 10.16 10.6(#) Avalanche Biotechnologies, Inc. 2014 Equity IncentiveAward Plan. S-1/A July 25, 2014 10.5 10.7(#) Form of Stock Option Grant Notice and Stock OptionAgreement under the 2014 Equity Incentive Award Plan. S-1/A July 25, 2014 10.17 10.8(#) Form of Restricted Stock Award Grant Notice and RestrictedStock Award Agreement under the 2014 Equity IncentiveAward Plan. S-1/A July 25, 2014 10.18 10.9(#) Form of Restricted Stock Unit Award Grant Notice andRestricted Stock Unit Award Agreement under the 2014Equity Incentive Award Plan. S-1/A July 25, 2014 10.19  INCORPORATED BY REFERENCE EXHIBITNUMBER EXHIBIT DESCRIPTION FORM DATE EXHIBITNUMBER PROVIDEDHEREWITH 10.10(#) Avalanche Biotechnologies, Inc. 2014 Employee StockPurchase Plan. S-1/A July 25, 2014 10.6 10.11(#) Letter Agreement, dated as of September 18, 2010, by andbetween Avalanche Biotechnologies, Inc. and Thomas W.Chalberg, Jr., Ph.D. S-1 June 30, 2014 10.7 10.12(#) Letter Agreement, dated as of April 2, 2014, by and betweenAvalanche Biotechnologies, Inc. and Linda C. Bain. S-1 June 30, 2014 10.8 10.13(#) Letter Agreement, dated as of July 15, 2012, by and betweenAvalanche Biotechnologies, Inc. and Hans P. Hull. S-1 June 30, 2014 10.9 10.14(#) Letter Agreement, dated as of June 3, 2013, by and betweenAvalanche Biotechnologies, Inc. and Mehdi Gasmi. S-1 June 30, 2014 10.10 10.15(#) Letter Agreement, dated as of June 13, 2014, by and betweenAvalanche Biotechnologies, Inc. and Samuel Barone. S-1 December 18, 2014 10.15 10.16(#) Letter Agreement, dated as of August 28, 2014, by andbetween Avalanche Biotechnologies, Inc. and Roman Rubio. S-1 December 18, 2014 10.16 10.17(#) Separation Agreement and General Release, dated July 23,2015, by and between Avalanche Biotechnologies, Inc. andThomas W. Chalberg, Jr., Ph.D. 8-K July 23, 2015 10.1 10.18(#) Special Bonus Letter, dated July 23, 2015, for Hans P. Hull. 8-K July 23, 2015 10.2 10.19(#) Special Bonus Letter, dated July 23, 2015, for Mehdi Gasmi,Ph.D. 8-K July 23, 2015 10.3 10.20(#) Form of Amendment to the Change in Control and SeveranceAgreement for Hans P. Hull. 10-Q August 13, 2015 10.2 10.21(#) Letter Agreement, dated as of August 11, 2015, by andbetween Avalanche Biotechnologies, Inc. and Hans P. Hull. 10-Q August 13, 2015 10.3 10.22(#) Letter Agreement, dated as of August 11, 2015, by andbetween Avalanche Biotechnologies, Inc. and Linda C. Bain. 10-Q August 13, 2015 10.4 10.23(#) Letter Agreement, dated as of August 11, 2015, by andbetween Avalanche Biotechnologies, Inc. and Mehdi Gasmi,Ph.D. 10-Q August 13, 2015 10.5 10.24(#) Offer Letter, dated November 19, 2015, by and betweenAvalanche Biotechnologies, Inc. and Paul Cleveland. 8-K November 20, 2015 10.1 10.25(#) Change in Control and Severance Agreement, datedNovember 19, 2015, by and between AvalancheBiotechnologies, Inc. and Paul Cleveland. 8-K November 20, 2015 10.2  INCORPORATED BY REFERENCE EXHIBITNUMBER EXHIBIT DESCRIPTION FORM DATE EXHIBITNUMBER PROVIDEDHEREWITH 10.26(#) Offer Letter, dated January 29, 2016, by and betweenAvalanche Biotechnologies, Inc. and Amber Salzman. 8-K February 1, 2016 10.2 10.27(#) Change in Control and Severance Agreement, dated January29, 2016, by and between Amber Salzman and AvalancheBiotechnologies, Inc. 8-K February 1, 2016 10.3 10.28 Lease Agreement, dated as of December 20, 2013, by andbetween Avalanche Biotechnologies, Inc. and O’Brien DrivePortfolio, LLC. S-1 June 30, 2014 10.11 10.29 First Amendment to Lease, dated August 1, 2014, by andbetween O’Brien Drive Portfolio, LLC and AvalancheBiotechnologies, Inc. 8-K September 12, 2014 10.1 10.30 Second Amendment to Lease, dated October 30, 2014, byand between O’Brien Drive Portfolio, LLC and AvalancheBiotechnologies, Inc. 8-K November 4, 2014 10.1 10.31(#) Form of Indemnification Agreement for directors andexecutive officers. S-1/A July 18, 2014 10.12 10.32(#) 2012 Change in Control Benefit Plan. S-1/A July 18, 2014 10.13 10.33(#) Form of Change in Control Severance Agreement. S-1/A July 25, 2014 10.14 10.34(#) Form of Chief Executive Officer Change in ControlSeverance Agreement. S-1/A July 25, 2014 10.15 10.35(#) Form of Amendment to the Change in Control and SeveranceAgreement. 10-Q August 13, 2015 10.1 10.36(#) Form of Inducement Stock Option Agreement. 8-K November 20, 2015 10.3 10.37 Form of Support and Voting Agreement. 8-K February 1, 2016 10.1 10.38 Separation Agreement and General Release, dated February12, 2016, by and between Avalanche Biotechnologies, Inc.and Hans P. Hull X 10.39 Consulting Agreement, dated February 12, 2016, by andbetween Avalanche Biotechnologies, Inc. and Hans. P. Hull X 21.1 List of Subsidiaries. X 23.1 Consent of Independent Registered Public Accounting Firm. X 24.1 Power of Attorney (included on signature page hereto) X 31.1 Certification of Chief Executive Officer and Chief FinancialOfficer, as required by Rule 13a-14(a) or Rule 15d-14(a). X 32.1* Certification by the Chief Executive Officer and ChiefFinancial Officer, as required by Rule 13a-14(b) or Rule 15d-14(b) and Section 1350 of Chapter 36 of Title 18 of theUnited States Code (18 U.S.C. §1350). X 101.INS XBRL Instance Document. X  INCORPORATED BY REFERENCE EXHIBITNUMBER EXHIBIT DESCRIPTION FORM DATE EXHIBITNUMBER PROVIDEDHEREWITH 101.SCH XBRL Taxonomy Extension Schema Document. X 101.CAL XBRL Taxonomy Extension Calculation LinkbaseDocument. X 101.DEF XBRL Taxonomy Extension Definition Linkbase Document. X 101.LAB XBRL Taxonomy Extension Label Linkbase Document. X 101.PRE XBRL Taxonomy Extension Presentation LinkbaseDocument. X†Portions of this exhibit (indicated by asterisks) have been omitted pursuant to a request for confidential treatment and this exhibit has been filedseparately with the SEC.#Indicates management contract or compensatory plan.*The certification attached as Exhibit 32.1 that accompanies this Annual Report on Form 10-K is not deemed filed with the SEC and is not to beincorporated by reference into any filing of Avalanche Biotechnologies, Inc. under the Securities Act of 1933, as amended, or the Securities ExchangeAct of 1934, as amended, whether made before or after the date of this Form 10-K, irrespective of any general incorporation language contained insuch filing.  Exhibit 10.38 SEPARATION AGREEMENT AND GENERAL RELEASE This Separation Agreement and General Release ("Agreement") is made by and between Hans P. Hull ("Executive") andAvalanche Biotechnologies, Inc. (the "Company") (collectively referred to as the "Parties" or individually referred to as a “Party”),effective as of the eighth day following Executive’s signature of this Agreement without revocation (the “Effective Date”). RECITALS WHEREAS, Executive was employed by the Company as Senior Vice President, Business Operations; WHEREAS, Executive and the Company entered into a Change in Control and Severance Agreement dated November 5,2014, as amended effective August 21, 2015 (“CiC Agreement”); WHEREAS, Executive resigned his employment, his position as Senior Vice President, Business Operations of theCompany and all other positions he may hold as an officer or director of any Company subsidiaries February 12, 2016 “ResignationDate”), and the Company accepted Executive’s resignation; WHEREAS, the Parties agree that Executive’s resignation shall be deemed a Covered Termination as defined in the CiCAgreement; WHEREAS, the Company wishes to receive Executive’s continued cooperation and consulting services following theResignation Date, and Executive is willing to provide such services on the terms set forth herein and in the Consulting Agreementattached as Exhibit A hereto; and WHEREAS, the Parties wish to confirm their respective rights and obligations and to resolve any and all claims or disputesarising out of or in any way related to Executive’s employment with or separation from the Company. NOW, THEREFORE, in consideration of the mutual promises made herein, the Company and Executive hereby agree asfollows: 1.Consideration. Contingent upon Executive’s execution of this Agreement no earlier than the Resignation Date, and thisAgreement becoming effective, the Company shall provide Executive with the following payments and benefits. a.Severance Payment. The Company shall pay to Executive twelve (12) months of Executive’s salary at the basesalary rate in effect as of the Resignation Date (the “Severance Payments”). Severance Payments will be paid to Executivein accordance with the Company’s regular payroll practices, less all applicable tax withholding, beginning the later of (i) thefirst payroll period following the Resignation Date or (ii) the first payroll period following the Effective Date. In addition tothe foregoing Severance Payment, Company29853899.1 SV\1702798.1 shall also pay to Executive his 2015 performance bonus, in a lump sum, less any normal withholding, within 7 daysfollowing Executive’s signature of this agreement without revocation. b.COBRA. Provided that Executive timely elects to receive continued health coverage under the ConsolidatedOmnibus Budget Reconciliation Act of 1985, as amended (“COBRA”), the Company shall reimburse Executive themonthly premium for continuation of Executive’s coverage for the lesser of (i) twelve (12) months, (ii) until Executive andhis dependents, if any, become eligible for healthcare coverage under another employer’s plan(s).c.Equity Awards. The Company granted Executive options to purchase an aggregate of 165,200 shares of commonstock (the “Options”) and 125,590 restricted stock units (the “RSUs”) (together, the “Equity Awards”). On the ResignationDate, each outstanding, unvested Equity Award shall automatically become vested and, if applicable, exercisable and anyforfeiture restrictions or rights of repurchase shall immediately lapse, in each case, with respect to that number of shares thatwould have vested and, if applicable, become exercisable in the twelve (12) months immediately following Executive’sresignation had Executive’s employment continued during such twelve (12)-month period. Thereafter, any outstandingOptions and RSUs shall continue to vest, and any forfeiture restrictions or rights of repurchase shall continue to lapse,through the earlier of (a) the last date of the Consulting Period, as defined in Section 1.d, below, and (b) the date of thetermination of that Consulting Agreement between the Company and Executive (the “Consulting Agreement”), dated as ofthe date hereof and attached as Exhibit A hereto (such earlier date, the “Vesting Termination Date”). All shares of theOptions and RSUs unvested as of the Vesting Termination Date shall be cancelled. Except as set forth herein, theExecutive’s rights with respect to the Options and RSUs are as set forth in the applicable equity plan, notices of grant andstock option or RSU agreements (together, the “Equity Award Agreements”). d.Consulting Period. From the Resignation Date through February 11, 2017 (the “Consulting Period”), Executive will servethe Company as an independent contractor and will provide services to the Company on an as-requested basis pursuant tothe terms of the Consulting Agreement. 2.Benefits. Subject to Executive’s right to continue health insurance under COBRA, Executive’s participation in all benefitsand incidents of employment shall cease as of the Resignation Date. 3.Payment of Wages and Expenses. Executive acknowledges and represents that, other than the consideration set forth inthis Agreement, the Company has paid or provided all salary, wages, bonuses, accrued vacation/paid time off, reimbursable expenses,commissions, and any and all other benefits and compensation due to Executive. Executive understands and agrees that, except as setforth in this Agreement, he is neither entitled to nor shall he receive additional payments or benefits from the Company. 29853899.1 Page 2 of 10  4.Release of Claims. Executive agrees that the foregoing consideration represents settlement in full of all outstandingobligations owed to Executive by the Company and its current and former officers, directors, employees, agents, investors, attorneys,affiliates, divisions, and subsidiaries, and predecessor and successor corporations and assigns (collectively, the “Releasees”). Executive, on his own behalf and on behalf of his family members, heirs, executors, administrators, agents, and assigns, hereby andforever releases the Releasees from, and agrees not to sue concerning, or in any manner to institute, prosecute, or pursue, any claim,complaint, charge, duty, obligation, or cause of action relating to any matters of any kind, whether presently known or unknown,suspected or unsuspected, that Executive may possess against any of the Releasees arising from any omissions, acts, facts, or damagesthat have occurred up until and including the Effective Date of this Agreement, including, without limitation: a.any and all claims relating to or arising from Executive’s employment relationship with Company and thetermination of that relationship; b.any and all claims for wrongful discharge of employment; termination in violation of public policy;discrimination; harassment; retaliation; breach of contract, both express and implied; breach of covenant of goodfaith and fair dealing, both express and implied; promissory estoppel; negligent or intentional infliction ofemotional distress; fraud; negligent or intentional misrepresentation; negligent or intentional interference withcontract or prospective economic advantage; unfair business practices; defamation; libel; slander; negligence;personal injury; assault; battery; invasion of privacy; false imprisonment; conversion; and disability benefits; c.any and all claims for violation of any federal, state, or municipal statute, including, but not limited to, Title VII of the Civil Rights Act of 1964; the Civil Rights Act of 1991; the Rehabilitation Act of 1973; theAmericans with Disabilities Act of 1990; the Equal Pay Act; the Fair Labor Standards Act, except as prohibited bylaw; the Fair Credit Reporting Act; the Age Discrimination in Employment Act of 1967; the Older WorkersBenefit Protection Act; the Employee Retirement Income Security Act of 1974; the Worker Adjustment andRetraining Notification Act; the Family and Medical Leave Act, except as prohibited by law; the Sarbanes-OxleyAct of 2002, except as prohibited by law; the Uniformed Services Employment and Reemployment Rights Act;the California Family Rights Act; the California Labor Code, except as prohibited by law; the California Workers’Compensation Act, except as prohibited by law; and the California Fair Employment and Housing Act; e.any and all claims for violation of the federal or any state constitution; f.any and all claims arising out of any other laws and regulations relating to employment or employmentdiscrimination; g.any claim for any loss, cost, damage, or expense arising out of any dispute over the non-withholding orother tax treatment of any of the proceeds received by Executive as a result of this Agreement; and 29853899.1 Page 3 of 10  h.any and all claims for attorneys’ fees and costs. Executive agrees that the release set forth in this section shall be and remain in effect in all respects as a completegeneral release as to the matters released. This release does not extend to any obligations incurred under thisAgreement. This release does not release claims or rights under this Agreement and the Consulting Agreement;claims cannot be released as a matter of law, including, but not limited to, claims under Division 3, Article 2 of theCalifornia Labor Code (which includes Executive’s right to indemnity under California Labor Code section 2802)and Executive’s right to bring to the attention of the Equal Employment Opportunity Commission or CaliforniaDepartment of Fair Employment and Housing claims of discrimination, harassment, retaliation or failure toaccommodate; provided, however, that Executive does release his right to obtain damages for any such claims; andExecutive’s right to communicate or cooperate with any government agency. 5.Acknowledgment of Waiver of Claims under ADEA. Executive acknowledges that he is waiving and releasing any rightshe may have under the Age Discrimination in Employment Act of 1967 ("ADEA"), and that this waiver and release is knowing andvoluntary. Executive acknowledges that this waiver and release does not apply to any rights or claims that may arise under the ADEAafter the Effective Date of this Agreement. Executive acknowledges that the consideration given for this waiver and release is inaddition to anything of value to which Executive was already entitled. Executive further acknowledges that he has been advised bythis writing that: (a) he should consult with an attorney prior to executing this Agreement; (b) he has twenty-one (21) days withinwhich to consider this Agreement; (c) he has seven (7) days following execution of this Agreement to revoke this Agreement; (d) thisAgreement shall not be effective until after the revocation period has expired; and (e) nothing in this Agreement prevents or precludesExecutive from challenging or seeking a determination in good faith of the validity of this waiver under the ADEA, nor does it imposeany condition precedent, penalties, or costs for doing so, unless specifically authorized by federal law. In the event Executive signsthis Agreement and returns it to Shirley Braun, Vice President, Human Resources, in less than the 21-day period identified above,Executive hereby acknowledges that he has freely and voluntarily chosen to waive the time period allotted for considering thisAgreement. To revoke his acceptance of this Agreement, Executive must contact Shirley Braun, by email atshirley.braun@avalanchebiotech.com no later than 5 p.m. on the 7th day following Executive’s signature of this Agreement. 6.California Civil Code Section 1542. Executive acknowledges that he has been advised to consult with legal counsel and isfamiliar with the provisions of California Civil Code Section 1542, a statute that otherwise prohibits unknown claims, which providesas follows: A GENERAL RELEASE DOES NOT EXTEND TO CLAIMS WHICH THE CREDITOR DOES NOTKNOW OR SUSPECT TO EXIST IN HIS OR HER FAVOR AT THE TIME OF EXECUTING THERELEASE, WHICH IF KNOWN BY HIM OR HER MUST HAVE MATERIALLY AFFECTED HIS ORHER SETTLEMENT WITH THE DEBTOR. 29853899.1 Page 4 of 10  Executive, being aware of said code section, agrees to expressly waive any rights he may have thereunder, as well as underany other statute or common law principles of similar effect. 7.No Pending or Future Lawsuits. Executive represents that he has no lawsuits, claims, or actions pending in his name, oron behalf of any other person or entity, against Company or any of the other Releasees. Executive also represents that he does notintend to bring any claims on his own behalf or on behalf of any other person or entity against Company or any of the otherReleasees. Executive represents that he is not aware of any injury for which he is eligible to receive workers’ compensation benefits asto which he has not already filed a workers’ compensation claim. 8.Trade Secrets and Confidential Information/Company Property. Executive reaffirms and agrees to observe and abide bythe terms of the Employee Confidentiality and Invention Assignment Agreement (the “Confidentiality Agreement”) signed byExecutive in conjunction with his employment. Executive’s signature below constitutes his certification that he has returned alldocuments and property provided to Executive by the Company, including but not limited to his Company issued laptop and otherelectronic and/or storage devices, all office files and all electronic files. Company electronic files stored on any of Executive’s personalstorage devices shall be archived by Executive on the Company’s network and deleted from all personal devices. The Company-issued laptop and all other Company-issued electronic and/or storage devices shall be returned with all files intact. 9.No Cooperation. Executive agrees not to deliberately act in any manner that might damage the business or reputation ofthe Company. Executive further agrees that he will not knowingly encourage, counsel, or assist any attorneys or their clients in thepresentation or prosecution of any disputes, differences, grievances, claims, charges, or complaints by any third party against any of theReleasees, unless under a subpoena or other court order to do so or as related directly to the ADEA waiver in this Agreement. Executive agrees both to immediately notify the Company upon receipt of any such subpoena or court order, and to furnish, withinthree (3) business days of his receipt, a copy of such subpoena or other court order. If approached by anyone for counsel or assistancein the presentation or prosecution of any disputes, differences, grievances, claims, charges, or complaints against any of the Releasees,Executive shall state no more than that he cannot provide counsel or assistance. Nothing in this Section 9 intended to or shall limitExecutive’s right to communicate or cooperate with any government agency. 10.Executive’s Cooperation with Company. Executive shall cooperate with the Company and its affiliates, upon theCompany’s reasonable request, with respect to any internal investigation or administrative, regulatory or judicial proceeding involvingmatters within the scope of Executive’s duties and responsibilities to the Company during Executive’s employment with the Company(including, without limitation, Executive being available to the Company upon reasonable notice for interviews and factualinvestigations, appearing at the Company’s reasonable request to give testimony without requiring service of a subpoena or other legalprocess, and turning over to the Company all relevant Company documents which are or may have come into Executive’s possessionduring his employment); provided, however, that any such request by the Company shall not be unduly burdensome or interfere withExecutive’s personal schedule or ability to engage in gainful employment. In the event the Company requires Executive’s cooperationin accordance with this Section 10, the Company shall reimburse Executive for reasonable out-of-pocket expenses29853899.1 Page 5 of 10  (including travel, lodging and meals) incurred by Executive in connection with such cooperation, subject to reasonable documentation. 11.No Defamation, Libel or Slander; Non -Interference. Executive agrees to refrain from (a) any defamation, libel, orslander of any of the Releasees, and (b) any interference with the contracts and relationships of the Company. The Company’s Boardof Directors and its executive officers shall refrain from any defamation, libel, or slander of the Executive. 12.Costs. The Parties shall each bear their own costs, attorneys’ fees, and other fees incurred in connection with thepreparation of this Agreement. 13.Arbitration. The Parties agree that any and all disputes arising out of the terms of this agreement, their interpretation, andany of the matters herein released, shall be subject to arbitration in San Jose, California, before the Judicial Arbitration and MediationService (“JAMS”), pursuant to its Employment Arbitration Rules & Procedures (“JAMS Rules”). The arbitrator may grant injunctionsand other relief in such disputes. The arbitrator shall administer and conduct any arbitration in accordance with California law,including the California Code of Civil Procedure, and the arbitrator shall apply substantive and procedural California law to anydispute or claim, without reference to any conflict-of-law provisions of any jurisdiction. To the extent that the JAMS rules conflictwith California law, California law shall take precedence. The decision of the arbitrator shall be final, conclusive, and binding on theParties. The Parties agree that the prevailing Party in any arbitration shall be entitled to injunctive relief in any court of competentjurisdiction to enforce the arbitration award. The arbitrator shall award attorneys’ fees and costs to the prevailing Party, except asprohibited by law. The Parties hereby agree to waive their right to have any dispute between them resolved in a court of law by ajudge or jury. Notwithstanding the foregoing, this section will not prevent either Party from seeking injunctive relief (or any otherprovisional remedy) from any court having jurisdiction over the Parties and the subject matter of their dispute relating to this agreementand the agreements incorporated herein by reference. 14.Tax Consequences. The Company makes no representations or warranties with respect to the tax consequences of thepayments and any other consideration provided to Executive or made on his behalf under the terms of this Agreement. Executiveagrees and understands that he is responsible for payment, if any, of local, state, and/or federal taxes on the payments and any otherconsideration provided hereunder by the Company and any penalties or assessments thereon. Executive further agrees to indemnifyand hold the Company harmless from any claims, demands, deficiencies, penalties, interest, assessments, executions, judgments, orrecoveries by any government agency against the Company for any amounts claimed due on account of (a) Executive’s failure to payor the Company’s failure to withhold, or Executive’s delayed payment of, federal or state taxes, or (b) damages sustained by theCompany by reason of any such claims, including attorneys’ fees and costs. 15.Section 409A. a. To the extent applicable, this Agreement shall be interpreted in accordance with Section 409A of theCode and Department of Treasury regulations and other interpretative guidance issued thereunder, includingwithout limitation any such29853899.1 Page 6 of 10  regulations or other such guidance that may be issued after the Effective Date (“Section 409A”). Notwithstandingany provision of this Agreement to the contrary, in the event that following the Effective Date, the Companydetermines in good faith that any compensation or benefits payable under this Agreement may not be either exemptfrom or compliant with Section 409A, the Company may adopt such amendments to this Agreement or adopt otherpolicies or procedures (including amendments, policies and procedures with retroactive effect), or take any otheractions necessary or appropriate to preserve the intended tax treatment of the compensation and benefits payablehereunder and/or to preserve the economic benefits of such compensation and benefits, including actions intendedto (i) exempt the compensation and benefits payable under this Agreement from Section 409A, and/or (ii) complywith the requirements of Section 409A; provided, however, that this Section 16 does not, and shall not beconstrued so as to, create any obligation on the part of the Company to adopt any such amendments, policies orprocedures or to take any other such actions or to indemnify the Executive for any failure to do so. To the extentthat compensation or benefits payable under this Agreement constitute “nonqualified deferred compensation”within the meaning of Section 409A, and are designated under this Agreement as payable upon (or within aspecified time following) the Executive’s termination of employment, such compensation or benefits shall bepayable only upon (or, as applicable, within the specified time following) the Executive’s “separation fromservice” from Company (within the meaning of Section 409A). For purposes of Section 409A, any right to aseries of installment payments pursuant to this Agreement, including without limitation any COBRA Severance,will be considered as a right to a series of separate payments. b.To the extent that any payments or reimbursements provided to Executive under this Agreement aredeemed to constitute compensation to which Treasury Regulation Section 1.409A-3(i)(1)(iv) would apply, suchpayments or reimbursements shall be made or provided in accordance with the requirements of Section 409A,including, where applicable, the requirement that (i) any reimbursement is for expenses incurred duringExecutive’s lifetime (or during a shorter period of time specified in this Agreement), (ii) the amount of expenseseligible for reimbursement during a calendar year may not affect the expenses eligible for reimbursement in anyother calendar year, (iii) the reimbursement of an eligible expense will be made on or before the last day of thecalendar year following the year in which the expense is incurred, and (iv) the right to reimbursement is not subjectto liquidation or exchange for another benefit. 16.Mutual Indemnification. a.Executive agrees to indemnify and hold harmless the Company from and against any and all loss, costs,damages, or expenses, including, without limitation, attorneys’ fees or expenses incurred by the Company arisingout of the breach of this Agreement by Executive, or from any false representation made herein by Executive, orfrom any action or proceeding that may be commenced, prosecuted, or threatened by Executive or for Executive’sbenefit, upon Executive’s initiative, direct or29853899.1 Page 7 of 10  indirect, contrary to the provisions of this Agreement. Executive further agrees that in any such action orproceeding, this Agreement may be pled by the Company as a complete defense, or may be asserted by way ofcounterclaim or cross-claim. b.Company agrees to indemnify and hold harmless Executive from and against any and all loss, costs,damages, or expenses, including, without limitation, attorneys’ fees or expenses incurred by the Executive arisingout of the breach of this Agreement by the Company, or from any false representation made herein by theCompany, or from any false representation made herein by the Company, or from any action or proceeding thatmay be commenced, prosecuted, or threatened by the Company or its representatives, including its Board ofDirectors or for Company’s benefit, upon the Company’s initiative, direct or indirect, contrary to the provisions ofthis Agreement. 17.Authority. The Company represents and warrants that the undersigned has the authority to act on behalf of the Companyand to bind the Company and all who may claim through it to the terms and conditions of this Agreement. Executive represents andwarrants that he has the capacity to act on his own behalf and on behalf of all who might claim through him to bind them to the termsand conditions of this Agreement. Each Party warrants and represents that there are no liens or claims of lien or assignments in law orequity or otherwise of or against any of the claims or causes of action released herein. 18.No Representations. Executive represents that he has had an opportunity to consult with an attorney, and has carefullyread and understands the scope and effect of the provisions of this Agreement. Executive has not relied upon any representations orstatements made by Company that are not specifically set forth in this Agreement. 19.Severability. In the event that any provision or any portion of any provision hereof becomes or is declared by a court ofcompetent jurisdiction or arbitrator to be illegal, unenforceable, or void, this Agreement shall continue in full force and effect withoutsaid provision or portion of provision. 20.Entire Agreement. This Agreement represents the entire agreement and understanding between Company and Executiveconcerning the subject matter of this Agreement and Executive’s employment with and separation from Company and the eventsleading thereto and associated therewith, and supersedes and replaces any and all prior agreements and understandings concerning thesubject matter of this Agreement and Executive’s relationship with Company, with the exception of the Confidentiality Agreement andEquity Award Agreements. 21.No Oral Modification. This Agreement may only be amended in a writing signed by Executive and the Company’sChief Executive Officer. 22.Governing Law. This Agreement shall be governed by the laws of the State of California, without regard for choice-of-law provisions. Executive consents to personal and exclusive jurisdiction and venue in the State of California. 29853899.1 Page 8 of 10  23.Counterparts. This Agreement may be executed in counterparts and by facsimile or pdf copy and each counterpart andfacsimile or pdf copy shall have the same force and effect as an original and shall constitute an effective, binding agreement on the partof each of the undersigned. 24.Voluntary Execution of Agreement. Executive understands and agrees that he executed this Agreement voluntarily,without any duress or undue influence on the part or behalf of the Company or any third party, with the full intent of releasing all of hisclaims against the Company and any of the other Releases. IN WITNESS WHEREOF, the Parties have executed this Agreement on the respective dates set forth below. HANS P. HULL Dated: 2/12/2016/s/ Hans P. HullHans P. Hull AVALANCHE BIOTECHNOLOGIES, INC. Dated 2/12/2016/s/ Paul B. ClevelandPaul B. ClevelandChief Executive Officer AAVL Legal: /s/ Jennifer Cheng29853899.1 Page 9 of 10  Exhibit A CONSULTING AGREEMENT 29853899.1 Page 10 of 10  Exhibit 10.39CONSULTING AGREEMENTTHIS CONSULTING AGREEMENT (THE “AGREEMENT”) IS MADE AND ENTERED INTO AS OF FEBRUARY 12, 2016 (THE “EFFECTIVE DATE”), BYAND BETWEEN AVALANCHE BIOTECHNOLOGIES, INC., A DELAWARE, USA CORPORATION WITH AN ADDRESS AT 1035 O’BRIEN DRIVE, MENLO PARK, CA94025 (THE “COMPANY”), AND HANS HULL, AN INDIVIDUAL WITH AN ADDRESS AT *** (THE “CONSULTANT”). THE COMPANY AND THE CONSULTANTmay be referred to herein individually as “Party” or collectively, as “Parties.”RecitalsWhereas, COMPANY AND CONSULTANT HAVE ENTERED INTO THAT CERTAIN SEPARATION AGREEMENT AND GENERAL RELEASE DATEDFEBRUARY 12, 2016, “SEPARATION AGREEMENT” AND CONSULTANT HAS NOT REVOKED HIS ACCEPTANCE OF THE TERMS OF THE SEPARATION AGREEMENTunder of Section 5 of such Separation Agreement;Whereas, COMPANY HAS AGREED TO PROVIDE CONSULTANT WITH CERTAIN CONSIDERATION IN EXCHANGE FOR CONSULTANT’S PROVISION OFServices (as defined below) and agreement to sign and abide by the terms of this Consulting Agreement; andNow Therefore, in consideration of the mutual covenants set forth below, the Parties hereby agree as follows:Agreement1.Consulting Services.COMMENCING ON THE EFFECTIVE DATE, THE COMPANY HEREBY RETAINS CONSULTANT, AND CONSULTANT HEREBY AGREES TO PERFORMCONSULTING SERVICES FOR THE COMPANY AS SET FORTH HEREIN. CONSULTANT AGREES TO USE ITS BEST EFFORTS TO PROVIDE TO COMPANY SERVICESRELATING TO THE AREA OF GENE THERAPY AND OTHER AREAS WHERE THE COMPANY HAS ONGOING RESEARCH UPON THE COMPANY’S REQUEST, ANDCOOPERATE FULLY WITH COMPANY AND ASSIST COMPANY WITH ALL REASONABLE MANAGEMENT, OPERATIONAL, SCIENTIFIC RESEARCH AND DEVELOPMENT,AND TRANSITIONAL MATTER, INCLUDING BY BEING AVAILABLE FOR CONSULTATIONS AND MEETINGS, RESPONDING TO ANY INFORMATIONAL REQUESTS, ANDCOOPERATION AND ASSISTANCE IN DEFENDING ANY PENDING AND FUTURE LITIGATION AGAINST THE COMPANY (THE “Services”). THE SPECIFIC NATUREand amount of the Services to be performed by Consultant shall be as determined by the Parties during the term of this Agreement.2.Compensation.AS COMPLETE AND FULL COMPENSATION FOR THE SERVICES PROVIDED BY CONSULTANT TO COMPANY HEREUNDER, COMPANY SHALL PROVIDEto Consultant the consideration listed in Exhibit A hereto (the “Compensation”).3.Independent Contractor.29853845.1 Page 1 of 7  THE PARTIES UNDERSTAND AND AGREE THAT CONSULTANT IS AN INDEPENDENT CONTRACTOR AND NOT AN AGENT OR EMPLOYEE OF THECompany. CONSULTANT HAS NO AUTHORITY TO OBLIGATE THE COMPANY BY CONTRACT OR OTHERWISE. CONSULTANT AGREES NOT TO USE OR REFER TO THEname of Company, PARTICULARLY IN CONNECTION WITH OR SUGGESTING THE ENDORSEMENT OF ANY PRODUCTS OR SERVICES, IN ANY PUBLIC STATEMENTS,PROMOTION OR ADVERTISING, WHETHER VERBAL OR WRITTEN, INCLUDING, BUT NOT LIMITED TO SHAREHOLDER REPORTS, PROSPECTUSES, COMMUNICATIONSWITH STOCK MARKET ANALYSTS, PRESS RELEASES OR OTHER COMMUNICATIONS WITH THE MEDIA, WITHOUT Company’s ADVANCE WRITTEN PERMISSION,WHICH WRITTEN PERMISSION WILL NOT BE UNREASONABLY WITHHELD. CONSULTANT WILL NOT BE ELIGIBLE FOR ANY EMPLOYEE BENEFITS, NOR WILL THECOMPANY MAKE DEDUCTIONS FROM CONSULTANT’S FEES FOR TAXES OR INSURANCE (EXCEPT AS OTHERWISE REQUIRED BY APPLICABLE LAW ORregulation).4.Recognition of Company’s Rights; Nondisclosure.CONSULTANT RECOGNIZES THAT THE COMPANY IS ENGAGED IN A CONTINUOUS PROGRAM OF RESEARCH AND DEVELOPMENT RESPECTING ITSpresent and future business activities. Consultant agrees as follows:4.1AT ALL TIMES DURING THE TERM OF THIS AGREEMENT AND SEVEN (7) YEARS THEREAFTER,CONSULTANT WILL HOLD IN STRICTEST CONFIDENCE AND WILL NOT DISCLOSE, USE, LECTURE UPON OR PUBLISH ANY OF THE COMPANY’S PROPRIETARYINFORMATION (DEFINED BELOW), EXCEPT TO THE EXTENT SUCH DISCLOSURE, USE OR PUBLICATION MAY BE REQUIRED IN DIRECT CONNECTION WITHCONSULTANT’S PERFORMING REQUESTED SERVICES FOR THE COMPANY OR IS EXPRESSLY AUTHORIZED IN WRITING BY AN OFFICER OF THE COMPANY. IT ISUNDERSTOOD THAT THE PROPRIETARY INFORMATION WILL REMAIN THE SOLE PROPERTY OF THE COMPANY. CONSULTANT FURTHER AGREES TO TAKE ALLREASONABLE PRECAUTIONS TO PREVENT ANY UNAUTHORIZED DISCLOSURE OF THE PROPRIETARY INFORMATION AND EXPRESSLY AGREES THAT IT SHALL NOTDISCLOSE TO OR USE WITH ANY EMPLOYEE, AGENT OR REPRESENTATIVE OF CONSULTANT, IF ANY, WITH ACCESS TO ANY PROPRIETARY INFORMATION OFCompany.4.2THE TERM “Proprietary Information” SHALL MEAN ANY AND ALL BUSINESS AND TECHNICALINFORMATION, TRADE SECRETS, CONFIDENTIAL KNOWLEDGE, KNOW-HOW, DATA OR OTHER PROPRIETARY INFORMATION OR MATERIALS OF THE COMPANYREGARDLESS OF THE MEANS OF DISCLOSURE. BY WAY OF ILLUSTRATION BUT NOT LIMITATION, PROPRIETARY INFORMATION INCLUDES: (I) INVENTIONS, IDEAS,SAMPLES, PROTOTYPES, DEVICES, HARDWARE, SOFTWARE, MATERIALS, ELECTRONIC COMPONENTS, FORMULATIONS, AND PROCEDURES FOR PRODUCING ANYSUCH ITEMS, AS WELL AS DATA, KNOW-HOW, IMPROVEMENTS, INVENTIONS, DISCOVERIES, DEVELOPMENTS, DESIGNS AND TECHNIQUES; (II) INFORMATIONREGARDING PAST, CURRENT AND FUTURE RESEARCH, DEVELOPMENT AND PRODUCTS; MARKETING AND SELLING ACTIVITIES; PROTOCOLS AND ANY OTHER PRE-CLINICAL AND CLINICAL INFORMATION; SCIENTIFIC AND TECHNICAL INFORMATION AND DATA; BUSINESS MODELS; BUDGETS AND UNPUBLISHED FINANCIALSTATEMENTS; LICENSES; EXPENSES; PRICING INFORMATION; COSTS; SUPPLIERS AND CUSTOMERS; AND (III) INFORMATION REGARDING THE SKILLS ANDcompensation of employees or other consultants of the Company.4.3PROPRIETARY INFORMATION SHALL NOT, HOWEVER, INCLUDE ANY INFORMATION THAT (I) WASPUBLICLY KNOWN AND MADE GENERALLY AVAILABLE IN THE PUBLIC DOMAIN PRIOR TO THE TIME OF DISCLOSURE BY THE DISCLOSING PARTY; (II) BECOMESPUBLICLY KNOWN AND MADE GENERALLY AVAILABLE AFTER DISCLOSURE BY THE DISCLOSING PARTY TO THE RECEIVING PARTY THROUGH NO ACTION ORINACTION OF THE RECEIVING PARTY; (III) IS ALREADY IN THE POSSESSION OF THE RECEIVING PARTY AT THE TIME OF DISCLOSURE BY THE DISCLOSING PARTYas shown by the receiving party’s files and records29853845.1 2  IMMEDIATELY PRIOR TO THE TIME OF DISCLOSURE; (IV) IS OBTAINED BY THE rECEIVING pARTY FROM A THIRD PARTY WITHOUT A BREACH OF ANYOBLIGATIONS OF CONFIDENTIALITY; OR (V) IS INDEPENDENTLY DEVELOPED BY THE rECEIVING pARTY WITHOUT USE OF OR REFERENCE TO THE disclosingparty’s Proprietary Information, as shown by documents and other competent evidence in the receiving party’s possession. 4.4IN ADDITION, CONSULTANT UNDERSTANDS THAT THE COMPANY HAS RECEIVED AND IN THE FUTUREWILL RECEIVE FROM THIRD PARTIES CONFIDENTIAL AND PROPRIETARY INFORMATION (“Third Party Information”) SUBJECT TO A DUTY ON THECOMPANY’S PART TO MAINTAIN THE CONFIDENTIALITY OF SUCH INFORMATION AND TO USE IT ONLY FOR CERTAIN LIMITED PURPOSES. DURING THE TERM OFCONSULTANT’S ASSOCIATION AND THEREAFTER, CONSULTANT WILL HOLD THIRD PARTY INFORMATION IN THE STRICTEST CONFIDENCE AND WILL NOT DISCLOSEOR USE THIRD PARTY INFORMATION, EXCEPT IN CONNECTION WITH CONSULTANT’S PERFORMING REQUESTED SERVICES FOR THE COMPANY, OR ASexpressly authorized in writing by an officer of the Company.5.Intellectual Property Rights.5.1ALL MATERIALS AND INFORMATION PROVIDED BY COMPANY TO CONSULTANT ARE DEEMED TO BEowned by Company and shall be returned to the Company at the conclusion of the Services covered by this Agreement.6.Nonsolicitation of Employees.6.1DURING THE TERM OF THIS AGREEMENT AND FOR ONE (1) YEAR AFTER ITS TERMINATION,CONSULTANT WILL NOT PERSONALLY OR THROUGH OTHERS RECRUIT, SOLICIT OR INDUCE ANY EMPLOYEE OF THE COMPANY TO TERMINATE HIS OR HERemployment with the Company.6.2IF ANY RESTRICTION SET FORTH IN SECTION 6.1 IS FOUND BY ANY COURT OF COMPETENTJURISDICTION TO BE UNENFORCEABLE BECAUSE IT EXTENDS FOR TOO LONG A PERIOD OF TIME OR OVER TOO GREAT A RANGE OF ACTIVITIES OR IN TOO BROAD AGEOGRAPHIC AREA, IT SHALL BE INTERPRETED TO EXTEND ONLY OVER THE MAXIMUM PERIOD OF TIME, RANGE OF ACTIVITIES OR GEOGRAPHIC AREA AS TOwhich it may be enforceable.7.No Conflicting Obligation.7.1CONSULTANT REPRESENTS THAT CONSULTANT’S PERFORMANCE OF ALL OF THE TERMS OF THISAGREEMENT AND THE PERFORMING OF THE SERVICES FOR THE COMPANY DO NOT AND WILL NOT BREACH OR CONFLICT WITH ANY AGREEMENT WITH ATHIRD PARTY, INCLUDING AN AGREEMENT TO KEEP IN CONFIDENCE ANY PROPRIETARY INFORMATION OF ANOTHER ENTITY ACQUIRED BY CONSULTANT INconfidence or in trust prior to the date of this Agreement.8.No Improper Use of Materials.CONSULTANT AGREES NOT TO BRING TO THE COMPANY OR TO USE IN THE PERFORMANCE OF SERVICES FOR THE COMPANY ANY MATERIALS ORDOCUMENTS OF A PRESENT OR FORMER EMPLOYER OF CONSULTANT, OR ANY MATERIALS OR DOCUMENTS OBTAINED BY CONSULTANT FROM A THIRD PARTYUNDER A BINDER OF CONFIDENTIALITY, UNLESS SUCH MATERIALS OR DOCUMENTS ARE GENERALLY AVAILABLE TO THE PUBLIC OR CONSULTANT HASauthorization from such third party for the possession and unrestricted use of such29853845.1 3  MATERIALS. Consultant UNDERSTANDS THAT Consultant IS NOT TO BREACH ANY OBLIGATION OF CONFIDENTIALITY THAT Consultant HAS TO PRESENT ORformer employers or clients, and agrees to fulfill all such obligations during the term of this Agreement.9.Term and Termination.9.1THIS AGREEMENT, AND CONSULTANT’S SERVICES HEREUNDER, SHALL COMMENCE ON THEEffective Date and shall continue for a term of 1 year after the Effective Date, unless earlier terminated as provided below.9.2CONSULTANT MAY TERMINATE THE AGREEMENT AT ANY TIME BY GIVING NO LESS THAN FIFTEEN(15) business days prior written notice to the other Party.9.3(a)THE COMPANY MAY TERMINATE THE AGREEMENT, AND THECONSULTANT’S SERVICES HEREUNDER, AT ANY TIME FOR CAUSE. IN THE EVENT THE AGREEMENT IS TERMINATED BY THE COMPANY FOR CAUSE, THECONSULTANT SHALL CEASE VESTING IN HIS EQUITY AWARDS (AS DEFINED IN SECTION 1 OF THE SEPARATION AGREEMENT AND GENERAL RELEASEexecuted by the parties on February 12, 2016 (the “Separation Agreement”)) as of the date of such termination.(b)FOR PURPOSES OF THIS SECTION 9.3, “Cause” WILL BE DETERMINED IN THE SOLE DISCRETION OF THECOMPANY’S BOARD OF DIRECTORS AND WILL MEAN MISCONDUCT, INCLUDING: (I) CONVICTION OF ANY FELONY OR ANY CRIME INVOLVING MORALTURPITUDE OR DISHONESTY; (II) WILLFUL AND MATERIAL BREACH OF CONSULTANT’S DUTIES TO PROVIDE THE SERVICES; (III) INTENTIONAL AND MATERIALDAMAGE TO THE COMPANY’S PROPERTY; (IV) MATERIAL BREACH OF THE PROPRIETARY INFORMATION AND INVENTIONS ASSIGNMENT AGREEMENT, BYAND BETWEEN CONSULTANT AND THE COMPANY, DATED FEBRUARY 7, 2012; OR (V) MATERIAL BREACH OF ANY OF THE PROVISIONS OF THIS AGREEMENTor the Separation Agreement.9.4THE OBLIGATIONS SET FORTH IN ARTICLES 5, 6, 7 AND 10 THROUGH 17 WILL SURVIVE ANYTERMINATION OR EXPIRATION OF THIS AGREEMENT. UPON TERMINATION OF THIS AGREEMENT, CONSULTANT WILL CEASE WORK IMMEDIATELY AFTERGIVING OR RECEIVING SUCH NOTICE OF TERMINATION, UNLESS OTHERWISE ADVISED BY THE COMPANY, AND PROMPTLY DELIVER TO THE COMPANY ALLDOCUMENTS AND OTHER MATERIALS OF ANY NATURE PERTAINING TO THE SERVICES AND ANY WORK PRODUCT, TOGETHER WITH ALL DOCUMENTS AND OTHERitems containing or pertaining to any Proprietary Information.10.Assignment.THE RIGHTS AND LIABILITIES OF THE PARTIES HERETO SHALL BIND AND INURE TO THE BENEFIT OF THEIR RESPECTIVE SUCCESSORS, HEIRS,EXECUTORS AND ADMINISTRATORS, AS THE CASE MAY BE; provided that, AS THE COMPANY HAS SPECIFICALLY CONTRACTED FOR CONSULTANT’S SERVICES,CONSULTANT MAY NOT ASSIGN OR DELEGATE CONSULTANT’S OBLIGATIONS UNDER THIS AGREEMENT EITHER IN WHOLE OR IN PART WITHOUT THE PRIORWRITTEN CONSENT OF THE COMPANY. THE COMPANY MAY ASSIGN ITS RIGHTS AND OBLIGATIONS HEREUNDER TO AN AFFILIATE OR TO ANY PERSON OR ENTITYTHAT SUCCEEDS TO ALL OR SUBSTANTIALLY ALL OF THE COMPANY’S BUSINESS TO WHICH THIS AGREEMENT RELATES, WHETHER BY MERGER, ACQUISITION ORother means. Any assignment not in accordance with this Section 10 shall be void.11.Legal and Equitable Remedies.29853845.1 4  Because Consultant’S SERVICES ARE PERSONAL AND UNIQUE AND BECAUSE Consultant MAY HAVE ACCESS TO AND BECOME ACQUAINTEDwith the Proprietary Information of the Company, the Company shall have the right to enforce this Agreement and any of its provisionsBY INJUNCTION, SPECIFIC PERFORMANCE OR OTHER EQUITABLE RELIEF WITHOUT PREJUDICE TO ANY OTHER RIGHTS AND REMEDIES THAT THE COMPANY MAYhave for a breach of this Agreement.12.Compliance with Applicable Laws and Obligations. Consultant will perform the Services in compliance with all applicable laws, Company’s instructions and this Agreement.13.Representation and Warranty.CONSULTANT REPRESENTS AND WARRANTS THAT (A) THIS AGREEMENT DOES NOT CONFLICT WITH CONSULTANT'S DUTIES AND OBLIGATIONS UNDERANY OTHER AGREEMENT TO WHICH CONSULTANT IS A PARTY; (B) CONSULTANT IS FREE TO PROVIDE ANY AND ALL INFORMATION AND MATERIALS THATCONSULTANT WILL FURNISH TO COMPANY IN CONNECTION WITH ITS SERVICES; (C) CONSULTANT HAS COMPLIED WITH ALL REQUIREMENTS IMPOSED BYHIS/HER INSTITUTION AND OR REGULATORY AUTHORITIES INCLUDING NOTIFICATION OR PRE-AUTHORIZATION REGARDING THE SERVICES PROVIDED UNDER THISAGREEMENT; (D) CONSULTANT HAS NOT BEEN “DEBARRED” BY THE UNITED STATES FOOD AND DRUG ADMINISTRATION (“FDA”) NOR HAVE DEBARMENTPROCEEDINGS BEEN COMMENCED AGAINST CONSULTANT, NOR WILL CONSULTANT USE IN ANY CAPACITY THE SERVICES OF ANY PERSON DEBARRED BY FDAIN PERFORMING ITS OBLIGATIONS UNDER THIS AGREEMENT; (E) CONSULTANT’S PERFORMANCE UNDER THIS AGREEMENT WILL CONFORM WITH ALLAPPLICABLE INDUSTRY STANDARDS AND FEDERAL, STATE AND LOCAL LAWS, RULES AND REGULATIONS; AND (F) ALL EMPLOYEES, AGENTS AND CONTRACTORS OFCONSULTANT THAT PERFORM ANY SERVICES UNDER THIS AGREEMENT ARE UNDER A WRITTEN OBLIGATION TO ASSIGN ANY AND ALL RIGHT, TITLE AND INTEREST INANY INTELLECTUAL PROPERTY TO CONSULTANT. CONSULTANT WILL PROMPTLY INFORM COMPANY IN WRITING SHOULD ANY CONFLICT OR POSSIBLE CONFLICTOF DUTIES AND OBLIGATIONS ARISE, OR OF ANY DEBARMENT, OR THE COMMENCEMENT OF ANY DEBARMENT OR LIKE PROCEEDINGS AGAINST CONSULTANTduring the term of this Agreement.14.Governing Law; Severability.THIS AGREEMENT WILL BE GOVERNED IN ALL RESPECTS BY THE LAWS OF THE STATE OF CALIFORNIA AS SUCH LAWS ARE APPLIED TO AGREEMENTSBETWEEN CALIFORNIA RESIDENTS ENTERED INTO AND TO BE PERFORMED ENTIRELY WITHIN CALIFORNIA AND WITHOUT GIVING EFFECT TO CONFLICT OF LAWSprinciples. Consultant consents to personal and exclusive jurisdiction and venue in the State of California.15.Complete Understanding; Modification.THIS AGREEMENT, AND THE EXHIBITS MENTIONED HEREIN, CONSTITUTE THE FINAL, EXCLUSIVE AND COMPLETE UNDERSTANDING ANDAGREEMENT OF THE PARTIES HERETO AND SUPERSEDES ALL PRIOR UNDERSTANDINGS AND AGREEMENTS; PROVIDED, HOWEVER, THAT THE NON-DISCLOSUREAGREEMENT, IF ANY, BETWEEN THE PARTIES ENTERED INTO PRIOR TO THE EFFECTIVE DATE SHALL CONTINUE TO GOVERN THE CONFIDENTIAL INFORMATIONEXCHANGED THEREUNDER, TO THE EXTENT THAT SUCH CONFIDENTIAL INFORMATION IS NOT COVERED UNDER THIS AGREEMENT. ANY WAIVER, MODIFICATIONor amendment of any provision of this Agreement shall be effective only if in writing and signed by the Parties hereto.16.Notices.29853845.1 5  ANY NOTICES REQUIRED OR PERMITTED HEREUNDER SHALL BE GIVEN TO THE APPROPRIATE PARTY AT THE ADDRESS LISTED ON THE FIRST PAGE OFthe Agreement, or such other address as the Party shall specify in writing pursuant to this notice provision. Such notice shall be deemedgiven upon personal delivery to the appropriate address or three days after the date of mailing if sent by certified or registered mail.17.Counterparts; Execution.THIS AGREEMENT MAY BE EXECUTED BY FACSIMILE OR ADOBE™ PORTABLE DOCUMENT FORMAT (PDF) SENT BY ELECTRONIC MAIL AND INONE OR MORE COUNTERPARTS EACH OF WHICH WILL BE DEEMED AN ORIGINAL, BUT ALL OF WHICH TOGETHER SHALL CONSTITUTE ONE AND THE SAMEinstrument.In Witness Whereof, the Parties hereto have executed this Agreement as of the Effective Date.Hans Hull AVALANCHE BIOTECHNOLOGIES, INC.Signature:/s/ Hans Hull Signature:/s/ Paul B. ClevelandPrint Name:Hans Hull Print Name:Paul B. ClevelandTitle:Consultant Title:Chief Executive Officer andPresidentDate:2/12/2016 Date:2/12/2016 Reviewed byAAVL Legal:/s/ Jennifer Cheng 29853845.1 6  Exhibit AServices and Compensation Time to be devoted: Consultant shall provide Services on an ad hoc basis to be mutually agreed upon by Consultant and Company. Compensation: THE COMPANY HAS GRANTED TO CONSULTANT WHILE CONSULTANT WAS AN EMPLOYEE OF COMPANY, CERTAIN EQUITY AWARDS ASDEFINED IN SECTION 1 OF THE SEPARATION AGREEMENT AND GENERAL RELEASE EXECUTED BY THE PARTIES ON FEBRUARY 12, 2016. AS FULL ANDCOMPLETE COMPENSATION FOR PERFORMING THE SERVICES, THE EQUITY AWARDS WILL VEST ACCORDING TO THE SCHEDULE SET FORTH IN SECTION 1.C. OFTHE SEPARATION AGREEMENT. IN THE EVENT THAT CONSULTANT TERMINATES THIS AGREEMENT UNDER SECTION 9.2 OR THE COMPANY TERMINATES THISAGREEMENT UNDER SECTION 9.3, ALL SHARES OF THE OPTIONS AND RSUS AS UNVESTED AS OF SUCH TERMINATION DATE SHALL IMMEDIATELY BEcancelled. 29853845.1 7  Exhibit 21.1SUBSIDIARY OF AVALANCHE BIOTECHNOLOGIES, INC. Name of Subsidiary Country of IncorporationAvalanche Australia PTY LTD Australia  Exhibit 23.1 CONSENT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRMWe consent to the incorporation by reference in Registration Statements No. 333-199296 and No. 333-203398 on Form S-8 of our report dated March 03,2016, relating to the consolidated financial statements of Avalanche Biotechnologies, Inc. and its subsidiary appearing in this Annual Report on Form 10-Kof Avalanche Biotechnologies, Inc. for the year ended December 31, 2015. /s/ DELOITTE & TOUCHE LLPSan Jose, CaliforniaMarch 3, 2016  Exhibit 31.1Certification of Chief Executive Officer and Chief Financial OfficerPursuant to Section 302 of the Sarbanes-Oxley Act of 2002 I, Paul B. Cleveland, certify that: 1.I have reviewed this Annual Report on Form 10-K of Avalanche Biotechnologies, Inc.; 2.Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make thestatements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by thisreport; 3.Based on my knowledge, the financial statements and other financial information included in this report fairly present in all material respects thefinancial condition, results of operations and cash flows of the registrant as of, and for, the periods presented in this report; 4.I am responsible for establishing and maintaining disclosure controls and procedures (as defined in Exchange Act Rules 13a-15(e) and 15d-15(e))and internal control over financial reporting (as defined by Exchange Act Rules 13a-15(f) and 15d-15(f)) for the registrant and have: a.Designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be designed under mysupervision, to ensure that material information relating to the registrant, including its consolidated subsidiaries, is made known to meby others within those entities, particularly during the period in which this report is being prepared; b.Designed such internal control over financial reporting, or caused such internal control over financial reporting to be designed under mysupervision, to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statementsfor external purposes in accordance with generally accepted accounting principles; c.Evaluated the effectiveness of the registrant’s disclosure controls and procedures and presented in this report my conclusions about theeffectiveness of the disclosure controls and procedures, as of the end of the period covered by this report based on such evaluation; and d.Disclosed in this report any change in the registrant’s internal control over financial reporting that occurred during the registrant’s mostrecent fiscal quarter (the registrant’s fourth fiscal quarter in the case of an annual report) that has materially affected, or is reasonablylikely to materially affect, the registrant’s internal control over financial reporting; and 5.I have disclosed, based on my most recent evaluation of internal control over financial reporting, to the registrant’s auditors and the auditcommittee of the registrant’s board of directors (or persons performing the equivalent function): a.All significant deficiencies and material weaknesses in the design or operation of internal controls over financial reporting which arereasonably likely to adversely affect the registrant’s ability to record, process, summarize and report financial information; and b.Any fraud, whether or not material, that involves management or other employees who have a significant role in the registrant’s internalcontrols over financial reporting.Date: March 3, 2016 By:/s/ Paul B. Cleveland Name:Paul B. Cleveland Title:President, Chief Executive Officer and Interim Chief Financial Officer  Exhibit 32.1Certification of Chief Executive Officer and Chief Financial OfficerPursuant to 18 U.S.C. Section 1350,as Adopted Pursuant to Section 906 of the Sarbanes-Oxley Act of 2002 In connection with the Annual Report of Avalanche Biotechnologies, Inc. (the “Company”) on Form 10-K for the fiscal year ended December 31,2015, as filed with the Securities and Exchange Commission (the “Report”), the undersigned does hereby certify, pursuant to 18 U.S.C. Section 1350, asadopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002, that: ·The Report fully complies with the requirements of Section 13(a) or 15(d) of the Securities Exchange Act of 1934; and ·The information in the Report fairly presents, in all material respects, the financial condition and results of operations of the Company.Date: March 3, 2016 By:/s/ Paul B. Cleveland Name:Paul B. Cleveland Title:President, Chief Executive Officer and Interim Chief Financial Officer 

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