Coherus BioSciences
Annual Report 2017

Plain-text annual report

UNITED STATESSECURITIES AND EXCHANGE COMMISSIONWASHINGTON, D.C. 20549 FORM 10-K ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d)OF THE SECURITIES EXCHANGE ACT OF 1934☒ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934For the fiscal year ended December 31, 2017OR☐TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934For the transition period from _________ to _________Commission File Number: 001-36721 Coherus BioSciences, Inc.(Exact name of registrant as specified in its charter) Delaware 27-3615821(State or other jurisdiction ofincorporation or organization) (I.R.S. EmployerIdentification No.)333 Twin Dolphin Drive, Suite 600Redwood City, California 94065(650) 649 - 3530(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, $0.0001 par value per share The Nasdaq Stock Market, Inc.Securities Registered Pursuant to Section 12(g) of the Act: None Indicate by check mark if the registrant is a well-known seasoned issuer, as defined in Rule 405 of the Securities Act. Yes ☐ No ☒Indicate by check mark if the registrant is not required to file reports pursuant to Section 13 or Section 15(d) of the Act. Yes ☐ No ☒Indicate by check mark whether the registrant (1) has filed all reports required to be filed by Section 13 or 15(d) of the Securities Exchange Act of 1934 during the preceding 12months (or for such shorter period than the registrant was required to file such reports), and (2) has been subject to such filing requirements for the past 90 days. Yes ☒ 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 (§ 232.405 of this chapter) during the preceding 12 months (or for such shorter period that the registrant was required to submit and post suchfiles). Yes ☒ 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. ☒Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer, smaller reporting company, or an emerging growth company. Seethe definitions of “large accelerated filer,” “accelerated filer,” “smaller reporting company,” and “emerging growth company” in Rule 12b-2 of the Exchange Act. Large accelerated filer☐ Accelerated filer ☒ Non-accelerated filer☐ (Do not check if a smaller reporting company) Smaller reporting company ☐ Emerging growth company☐ If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financialaccounting standards provided pursuant to Section 13(a) of the Exchange Act. ☐Indicate by check mark whether registrant is a shell company (as defined in Rule 12b-2 of the Exchange Act). Yes ☐ No ☒The aggregate market value of the registrant’s common stock, held by non-affiliates of the registrant as of June 30, 2017 (which is the last business day of registrant’s most recentlycompleted second fiscal quarter) based upon the closing market price of such stock on the Nasdaq Global Market on that date, was approximately $495.7 million. For purposes of thisdisclosure, shares of common stock held by each officer and director have been excluded in that such persons may be deemed to be “affiliates” as that term is defined under the Rulesand Regulations of the Securities Exchange Act of 1934. This determination of affiliate status is not necessarily conclusive.The number of shares of registrant’s common stock issued and outstanding as of February 28, 2018 was 60,141,557.DOCUMENTS INCORPORATED BY REFERENCEPart III incorporates by reference certain information from the registrant’s definitive proxy statement for the 2018 Annual Meeting of Stockholders.  COHERUS BIOSCIENCES, INC.ANNUAL REPORT ON FORM 10-KTABLE OF CONTENTS Page PART I ITEM 1. Business 3 ITEM 1A. Risk Factors 24 ITEM 1B. Unresolved Staff Comments 59 ITEM 2. Properties 59ITEM 3. Legal Proceedings 59 ITEM 4. Mine Safety Disclosures 60 PART II ITEM 5. Market for Registrant’s Common Equity, Related Stockholder Matters, and Issuer Purchases of Equity Securities 61 ITEM 6. Selected Financial Data 63 ITEM 7. Management’s Discussion and Analysis of Financial Condition and Results of Operations 65 ITEM 7A. Quantitative and Qualitative Disclosures About Market Risk 79 ITEM 8. Financial Statements and Supplementary Data 80 ITEM 9. Changes in and Disagreements with Accountants on Accounting and Financial Disclosure 111 ITEM 9A. Controls and Procedures 111 ITEM 9B. Other Information 113 PART III ITEM 10. Directors, Executive Officers and Corporate Governance 114 ITEM 11. Executive Compensation 114 ITEM 12. Security Ownership of Certain Beneficial Owners and Management and Related Stockholder Matters 114 ITEM 13. Certain Relationships and Related Transactions, and Director Independence 114 ITEM 14. Principal Accounting Fees and Services 114 PART IV ITEM 15. Exhibits and Financial Statement Schedules 115 Signatures 119 ii CAUTIONARY NOTE REGARDING FORWARD-LOOKING STATEMENTSThis Annual Report on Form 10-K contains forward-looking statements that involve risks and uncertainties. We make such forward-lookingstatements within the meaning of the Private Securities Litigation Reform Act of 1995 that involve substantial risks and uncertainties concerning ourbusiness, operations and financial performance and condition, as well as our plans, objectives and expectations for our business operations and financialperformance and condition. Any statements contained herein that are not statements of historical facts contained in this Annual Report on Form 10-K may bedeemed to be forward-looking statements. In some cases, you can identify forward-looking statements by words such as “aim,” “anticipate,” “assume,”“attempt,” “believe,” “contemplate,” “continue,” “could,” “due,” “estimate,” “expect,” “goal,” “intend,” “may,” “objective,” “plan,” “predict,” “potential,”“seek,” “should,” “target,” “will,” “would” and other similar expressions that are predictions of or indicate future events and future trends, or the negative ofthese terms or other comparable terminology. These forward-looking statements include, but are not limited to, statements about: •whether our biologics license application (“BLA”) for CHS-1701 (our pegfilgrastim (Neulasta®) biosimilar candidate) will be successfullyresubmitted and whether the U.S. Food and Drug Administration (“FDA”), will ultimately approve CHS-1701 for commercialization; •whether the results of our trials will be sufficient to support domestic or global regulatory approvals for CHS-1701, CHS-1420 (our adalimumab(Humira®) biosimilar candidate) and CHS-0214 (our etanercept (Enbrel®) biosimilar candidate); •whether additional trials will be required to support domestic or global regulatory approvals for CHS-1701, CHS-1420 and CHS-0214; •our ability to obtain and maintain regulatory approval of CHS-1701, CHS-1420 and CHS-0214 or our future product candidates; •the cost, timing and outcome of litigation involving our product candidates; •our ability to build the sales and marketing infrastructure for CHS-1701; •our expectations regarding the potential market size and the size of the patient populations for our product candidates, if approved forcommercial use; •our expectation that our capital resources will be sufficient to fund our operations for at least the next 12 months; •our ability to maintain and establish collaborations or obtain additional funding; •the implementation of strategic plans for our business and product plans; •the initiation, timing, progress and results of future preclinical and clinical studies and our research and development programs; •the scope of protection we are able to establish and maintain for intellectual property rights covering our product candidates; •our expectations regarding the scope or enforceability of third party intellectual property rights, or the applicability of such rights to ourproduct candidates; •our reliance on third-party contract manufacturers to supply our product candidates for us; •our reliance on third-party contract research organizations to conduct clinical trials of our product candidates; •the benefits of the use of CHS-1701, CHS-1420 and CHS-0214 and any other product candidates; •the rate and degree of market acceptance of CHS-1701, CHS-1420 and CHS-0214 or any future product candidates; •our expectations regarding government and third-party payor coverage and reimbursement; •our ability to manufacture CHS-1701, CHS-1420 and CHS-0214 in conformity with regulatory requirements and to scale up manufacturingcapacity of these products for commercial supply; •our ability to compete with companies currently producing the reference products, including Neulasta, Humira and Enbrel and other productsin our pipeline that are in preclinical stages of development; •our financial performance; and •developments and projections relating to our competitors and our industry.1 Any forward-looking statements in this Annual Report on Form 10-K reflect our current views with respect to future events or to our future financialperformance and involve known and unknown risks, uncertainties and other factors that may cause our actual results, performance or achievements to bematerially different from any future results, performance or achievements expressed or implied by these forward-looking statements. Factors that may causeactual results to differ materially from current expectations include, among other things, those listed under Part I, Item 1A. Risk Factors and discussedelsewhere in this Annual Report on Form 10-K. Given these uncertainties, you should not place undue reliance on these forward-looking statements. Exceptas required by law, we assume no obligation to update or revise these forward-looking statements for any reason, even if new information becomes availablein the future.This Annual Report on Form 10-K also contains estimates, projections and other information concerning our industry, our business, and the marketsfor certain diseases, including data regarding the estimated size of those markets, and the incidence and prevalence of certain medical conditions. Informationthat is based on estimates, forecasts, projections, market research or similar methodologies is inherently subject to uncertainties and actual events orcircumstances may differ materially from events and circumstances reflected in this information. Unless otherwise expressly stated, we obtained this industry,business, market and other data from reports, research surveys, studies and similar data prepared by market research firms and other third parties, industry,medical and general publications, government data and similar sources.2 PART IItem 1.BusinessOverviewWe are a late-stage clinical biologics platform company focused on the global biosimilar market. Biosimilars are an emerging class of protein-basedtherapeutics with high similarity to approved originator products on the basis of various physicochemical and structural properties, as well as safety, purityand potency. Our goal is to become a global leader in the biosimilar market by leveraging our team’s collective expertise in key areas such as process science,analytical characterization, protein production and clinical-regulatory development.Our business is organized around therapeutic franchises: 1)Oncology biosimilar candidate, CHS-1701 for pegfilgrastim (Neulasta®), which has been filed for approval in Europe, and for which we expectto refile a BLA for potential approval in the United States (“U.S.”), with regulatory action expected in both geographies as early as 2018; 2)Immunology (Anti-TNF) biosimilar candidates, CHS-0214 for etanercept (Enbrel®) and CHS-1420 for adalimumab (Humira®), which haveboth completed Phase 3 clinical programs; 3)Ophthalmology biosimilar candidates, CHS-3351 for ranibizumab (Lucentis®) and CHS-2020 for aflibercept (Eylea®), both of which are indevelopment; and 4)Multiple sclerosis small molecule therapeutic candidate, CHS-131, which completed a Phase 2b proof-of-concept trial in 2016.Oncology BiosimilarCHS-1701 stimulates production of granulocytes (a type of white blood cell) in order to promote the body’s ability to fight infections. In March 2015,we initiated a pivotal pharmacokinetic (“PK”) and pharmacodynamic (“PD”) study for CHS-1701 in the U.S. comparing CHS-1701 to Neulasta, for which wereported topline results in October 2015. This study met its primary PD endpoints of absolute neutrophil count (“ANC”). In terms of PK parameters, the studyalso met bioequivalence for Cmax. The Area Under the Curve (“AUC”) portion of the PK results did not meet bioequivalence due to the presence of a low,anomalous PK profile in the first treatment period Neulasta group. Although this PK/PD study is acceptable to support filing the BLA, we initiated a follow-on PK/PD study in February 2016, which met its primary clinical endpoints in July 2016. In August 2016, we filed a BLA with the FDA, which was acceptedby the FDA in October 2016. We received a complete response letter (“CRL”) regarding this BLA from the FDA in June 2017. In May 2015, we initiated animmunogenicity study in healthy volunteers pursuant to this BLA, which was completed in January 2016. As described below, a reanalysis with a moresensitive immunoassay of certain samples as requested by the FDA is ongoing, and the data will be included in our BLA resubmission. We currently plan toresubmit the BLA following a meeting with the FDA that occurred in the middle of the first quarter of 2018 and the execution of any related follow-up work.In October 2016, we filed a Marketing Authorization Application (“MAA”) with the European Medicines Agency (“EMA”), which was accepted by the EMAin November 2016 and we anticipate approval in the second half of 2018. We plan to market this product candidate ourselves in the U.S. and we are seekingto partner for commercialization in Europe.Anti-TNF BiosimilarsOur first anti-tumor necrosis factor (“anti-TNF”) product candidate, CHS-0214, is an etanercept (Enbrel) biosimilar candidate. We have global rights toCHS-0214, excluding certain Caribbean and Latin American countries, except for Brazil where we retain rights to CHS-0214. We have completed two Phase3 clinical trials with CHS-0214 in rheumatoid arthritis and psoriasis, which met their primary clinical endpoints in November 2015 and January 2016,respectively.Our second anti-TNF product candidate, CHS-1420, is an adalimumab (Humira) biosimilar candidate, and completed a Phase 3 study in psoriasispatients with top line 12-week data released in August 2016, followed by positive confirmatory results at 24-weeks in January 2017, all to support a plannedfiling of a marketing application in the U.S. and in the European Union (E.U.) in anticipation of the expiration of certain patents held by AbbVie Inc.(“AbbVie”) in 2022 and 2018, respectively.We intend to find worldwide commercialization partners for all of our anti-TNF or anti-inflammatory biosimilar candidates.Ophthalmology BiosimilarsOur preclinical-stage pipeline consists of CHS-3351, a ranibizumab (Lucentis) biosimilar product candidate, and CHS-2020, an aflibercept (Eylea)biosimilar candidate. We have completed cell-line development for our CHS-3351 candidate and clarified our manufacturing, clinical and regulatory pathwith the FDA. We expect to begin clinical trials for CHS-3351 in 2018.3 Overview of the Market Opportunity for BiosimilarsAccording to Evaluate Pharma, total global annual revenues from the anti-tumor necrosis factor alpha (“anti-TNF-a”), adalimumab, etanercept andpegfilgrastim-based originator products exceeded $32 billion in 2017. We intend to pursue a brand strategy for our biosimilar products that projects highsimilarity to the originator and positive differentiation from competing biosimilars at a competitive price.The global market opportunity for biosimilars is emerging as a result of several factors. First, through 2020, 28 “blockbuster” biologics, each withworldwide annual sales in excess of $1 billion, face loss of patent exclusivity in at least one major pharmaceutical market. These products achievedapproximately $105 billion in aggregate worldwide sales in 2017. Second, regulatory agencies around the world have responded to these upcoming patentexpirations by defining new biosimilar approval pathways. We believe these regulatory initiatives will help streamline the approval process across variousinternational regulatory agencies and encourage growth of the overall biosimilar market. Third, implementation of more stringent cost containment practiceson the part of governments and insurers has increased demand for high-quality biosimilars, which we believe will result in substantial market growth overtime.While the potential market opportunity is significant, biosimilar product development poses a number of scientific, regulatory and technicalchallenges that distinguish it from traditional, small-molecule generic product development. We believe our world-class team of biologic therapeuticdevelopers and renowned scientists gives us the critical capabilities to successfully address the complexities underlying these challenges. Our team includesindustry veterans with decades of experience in pioneering biologics companies, such as Amgen Inc. (“Amgen”) and Genentech, Inc. (“Genentech”), wherethey were responsible for leading, and in some cases establishing, these organizations’ core capabilities in process development, protein manufacturing andanalytical research and development as well as sales and marketing. We have also assembled a distinguished scientific advisory board of leading scientistswho are acknowledged experts in their respective fields.Our business model places our internal team at the center of a coordinated development effort in which our senior team of experts focuses on thehighly-specialized, strategic and technical aspects of biosimilar development that are core to our business and difficult to replicate. For other aspects of ouroperations that require greater scale or more capital-intensive investments, we have established a network of relationships with highly-competent externalorganizations and strategic partnerships that we believe will provide the competitive scale required to address the global biosimilar market opportunity. Forexample, in December 2015, we entered into a strategic manufacturing agreement with KBI Biopharma, Inc. (“KBI Biopharma”) for long-term commercialmanufacturing of CHS-1701, and in December 2017, we issued and sold an aggregate of 776,104 shares of common stock to KBI Biopharma, in a privateplacement transaction for gross consideration of $6.8 million. In addition, our dynamic organization allows us to respond to the rapidly evolving biosimilarlandscape.Our StrategyOur goal is to become a leading global biosimilar company. The five key elements of our strategy include: •Leveraging our platform and internal expertise in process science, molecular biology and protein production, as well as our clinical,regulatory and commercial strategies, to screen and select biosimilar candidates. Our team possesses a deep understanding of the technicaladvancements that enable the development of biosimilars. We believe we are able to effectively select product candidates using a stringentprocess that factors in technical feasibility, size of originator products opportunity and market receptivity to biosimilars, as well as othercriteria. •Advancing our lead programs through clinical development to secure approvals in major markets. We have developed a late-stage clinicalpipeline consisting of three product candidates. For CHS-1701, we initially filed for marketing approval in the U.S. in August 2016 and inEurope in October 2016 and anticipate potentially receiving regulatory approvals in both geographies as early as 2018. To support thesefilings, we successfully completed pivotal PK, PD and immunogenicity studies. For CHS-0214, we initiated our Phase 3 clinical trials in June2014 to advance CHS-0214 in rheumatoid arthritis and we initiated a second Phase 3 clinical trial in psoriasis in July 2014 to support theplanned filing of a marketing application in Europe and Japan. We initiated a Phase 3 clinical trial of CHS-1420 in psoriasis in August 2015 tosupport the planned filing of a marketing application in the U.S. and the E.U. We attempt to adapt our clinical trials to meet the regulatoryrequirements of multiple jurisdictions, including the U.S., Europe and Japan, such that one set of pivotal clinical trials may be sufficient forapproval in all jurisdictions. •Continuing to advance our early-stage product pipeline. We will apply our team’s expertise and our platform to identify and pursue multipleadditional biosimilar product opportunities. In addition to our clinical-stage product candidate portfolio, we have identified at least onepotential product candidate, CHS-3351, a ranibizumab (Lucentis) biosimilar product candidate that has met our stringent selection criteria,which has entered early development. Our goal is to advance this product candidate into clinical development in 2018. We will continue toevaluate other potential product development candidates to further expand our pipeline. •Maximizing the value of our portfolio and pipeline by retaining commercial rights to our products for our oncology and ophthalmologybiosimilar candidates in the U.S. and by partnering with leading pharmaceutical companies to commercialize our products in othertherapeutic areas. We intend to retain U.S. rights to our oncology and ophthalmology assets while licensing rights in exchange for upfront,cost sharing, milestone and royalty payments for our assets in other therapeutic and geographic areas. We may seek partners for CHS-0214 andCHS-1420 in 2018 in some or all territories, depending on legal and other developments.4 •Attracting and retaining exceptionally capable team members who share our vision of bringing high quality, lower cost biologictherapeutics to patients. We value the experience that has been gained by our veteran team members over the course of decades in thebiotechnology industry as essential for execution at all stages of biosimilar product development. We believe that our level of technicalexpertise is rare, difficult for others to replicate and a basis for screening those who would join our team. We intend to maintain the capabilitiesthat will enable us to realize our vision of expanding patient access to high quality, lower cost biologic therapeutics globally.Background on BiosimilarsSignificant Market OpportunityAccording to IQVIA Institute for Human Data Science, the 2016 global biologics market represented over $230 billion in sales, with virtually theentire market composed of branded originator products. Patent expirations for many commercially successful branded biologic products will provide anunprecedented opportunity for cost containment through the introduction of biosimilars. Through 2020, 28 major branded biologic products, all withworldwide annual sales in excess of $1 billion each, face loss of patent exclusivity in at least one major pharmaceutical market. These products achievedapproximately $105 billion in aggregate worldwide sales in 2017. We believe this wave of patent expirations will create significant opportunities in thecoming years. The following originator products (all of which are “blockbuster” biologics) are facing loss of patent exclusivity in at least one major marketthrough 2020: ActemraAdvateAvastinAvonexBotoxEnbrelEpogen ErbituxHerceptinHumalogHumiraKogenateLantusLevemir LucentisNeulastaNorditropin SimpleXxNovoMix 30NovoRapidOrenciaPediarix RebifRemicadeRituxanSolirisSynagisTysabriXolair Escalating healthcare costs and healthcare reform have been major drivers for the advancement of the biosimilar market. Governments and insurers arein search of mechanisms to contain costs and expand patient access without sacrificing quality of care. Further, governments and private-payors are using anincreasing and disproportionate amount of healthcare spending on biologic therapeutics. According to data from Express Scripts, approximately $4 out ofevery $10 spent on prescription drugs in 2016 in the U.S. is projected to be spent on specialty medications, mostly complex biologics that are only used by2% of the population. IQVIA Institute for Human Data Science reported in 2017 that revenue related to biologic medicines increased by 70% in the last fiveyears. Compounding the issue is the fact that biologic therapeutic costs are escalating at an increasingly unsustainable rate. Consequently, we believe there istremendous cost pressure to bring high-quality, lower-priced biologic therapeutics to market. We further believe our products target payor segments havingamong the highest rates of spending and anticipated spending growth, including inflammation and cancer.We expect the biosimilar marketplace to have several distinct characteristics as it develops. First, it is likely to become a branded market withoutsignificant participation by generic small molecule manufacturers, who are less likely to have the technical, regulatory and clinical expertise required tosucceed in this market. Second, the biosimilar markets we expect to target are unlikely to default to interchangeability in the near to medium term, whichmeans the prescription decision will not exclusively reside in the hands of pharmacists or payors but also in the hands of physicians, requiringcommercialization efforts to drive sales. We believe that the biosimilar market adoption and penetration rates for each biosimilar will primarily be determinedby four key factors: (1) patient criticality (the degree of severity in the patient’s condition), (2) rapidity of feedback on the safety and efficacy of the drugbased on the patient response, (3) the physician and patient share influence relative to the payor in the prescribing decision and (4) the prevalence of payorincentives to drive substitution. We believe there will be strong market adoption and penetration for our CHS-1701, CHS-0214 and CHS-1420 biosimilarsparticularly due to low patient criticality and payor incentives. We believe that the participation of major pharmaceutical firms, including Pfizer, Inc.(“Pfizer”), and Sandoz International GmbH (“Sandoz”), in the biosimilar markets that we are targeting indicates that there will be a relatively small number ofbiosimilar competitors, pricing stability and favorable market dynamics.The Challenge of Biosimilar Product DevelopmentProteins consist of one or more long chains of amino acids and perform a vast array of functions within living organisms, including catalyzingmetabolic reactions, replicating DNA, responding to stimuli and transporting molecules from one location to another. Such protein molecules differ from oneanother primarily in their sequence of amino acids, which results in folding of the protein into a specific three-dimensional structure that determines itsactivity.Although the sequence of amino acids in a protein is consistently replicated, there are a number of changes that can occur following synthesis thatcreate inherent variability. Chief among these is the glycosylation, or the attachment of sugars to certain amino acids. Most protein-based therapeutics,including all monoclonal antibodies, are glycosylated to some degree. Monoclonal antibodies are identical antibodies that have an affinity for the sameantigen and are produced by a specific clone or cell line. The glycosylation of monoclonal5 antibodies and other protein-based therapeutics can be critical to half-life, efficacy and even safety of the therapeutic and is therefore a key consideration forbiosimilarity. Defining and understanding the variability of an originator molecule in order to match its glycosylation profile requires significant skill in cellbiology, protein purification and analytical protein chemistry. Furthermore, manufacturing proteins with reliable and consistent glycosylation profiles atscale is challenging and highly dependent on the skill of the cell biologist and process scientist.Protein-based therapeutics are inherently heterogeneous and their structure is highly dependent on the production process and conditions. Productsfrom one production facility can differ within an acceptable range from those produced in another facility. Similarly, physicochemical differences can alsoexist among different lots produced within a single facility. The physicochemical complexity and size of biologic therapeutics creates significant technicaland scientific challenges in the context of their replication as biosimilar products. This is further exacerbated by the fact that some originator product’squality characteristics, such as glycosylation, have been shown to change or “drift” over time.Accordingly, inherent variation is a fundamental consideration with respect to establishing biosimilarity to an originator product to supportregulatory approval requirements. Since the product quality characteristics of originator molecules exist as a range of values rather than as an absolute, as it isthe case for small-molecule therapeutic generics, regulators have issued guidelines that require demonstration of biological similarity and functionalequivalence. Thus, we believe the ultimate result of protein heterogeneity and complexity is a biosimilar market where only organizations with greattechnical skill can successfully compete and will do so in a market of relatively few participants and relatively stable prices.Our ApproachFive Key Steps to Biosimilar Drug DevelopmentWe focus our efforts around five key steps of biosimilar development that are designed to provide the analytical, nonclinical and clinical basis toestablish biosimilarity and support regulatory approval of our product candidates. We have had meetings with regulatory agencies in several of the majorregulated markets to discuss our three most advanced product candidates and the data that will be required to support marketing approval. The outcomes ofthese discussions have informed our clinical designs, product development and regulatory strategies.Step 1: Cell Line Development and ManufacturingThe amino acid sequence of the candidate biosimilar molecule must precisely match that of the originator. We validate the amino acid sequence of allcandidate biosimilar products prior to developing clones. While all clones are expected to produce proteins with the same primary sequence, it is essential toselect clones that produce protein that most closely matches the glycosylation profile of the originator, since such product quality characteristics impact PK,and/or PD, properties as well as safety and efficacy of the molecule. A process to manufacture the desired product must be developed, scaled-up andimplemented in a Good Manufacturing Practice (“ GMP”), facility in order to be used in human clinical trials.Step 2: Analytical Characterization and In Vitro ComparabilityOnce a biosimilar product candidate has been manufactured, we use sophisticated analytical methods and equipment as well as highly trained analystsin order to detect, analyze and interpret the chemical and structural similarity between our biosimilar candidate and the originator product. We test forcomparability of biologic activity using a battery of sensitive in vitro pharmacology assays that demonstrate binding characteristics, functionality andmechanism of action. These data may be predictive of clinically relevant differences in PK, PD, efficacy, safety and immunogenicity between our biosimilarcandidate and the originator product.Step 3: In Vivo Animal ComparabilityFollowing demonstration of in vitro biosimilarity, we compare our biosimilar product candidate to the originator product in relevant animal modelsusing the intended dosage form and route of administration prior to performing human clinical trials. As PK, PD and safety observations from these studiesmay be predictive of the human clinical trial experience, it is important to perform these studies in animals before proceeding to human clinical trials.6 Step 4: Pivotal Phase 1 Human Pharmacokinetic and Pharmacodynamic StudyAn essential global regulatory requirement is the completion of a clinical study in a sufficient number of human subjects directly comparing theoriginator product and our biosimilar product candidate to establish PK/PD similarity. The U.S. and European regulatory agencies have establishedrequirements for bioequivalence with respect to three prospectively defined parameters as follows: •C max : maximum measured serum concentration; •AUC 0 - t : area under the concentration-time curve from the first time point measured (0) to the last time point measured (t); and •AUC 0-inf : area under the concentration-time curve from the first time point measured (0) extrapolated to infinity.The AUC is a measure of how much of a drug is in a patient’s system over a given time period. In order to calculate the AUC, the concentration of thedrug in blood serum or plasma is plotted over time starting at the time the drug is administered and ending when the last time point is collected (AUC 0-t ) orwhen the serum or plasma concentration would be below the level of detection or zero (AUC 0- inf ), and then the area under this curve is calculated. To bedeemed bioequivalent, regulators require that, for each parameter, the ratio of the originator product and the biosimilar candidate fall within 80% and 125%,with the identical match being at 100%.Step 5: Phase 3 Confirmatory Safety and Efficacy Clinical TrialsThe final step to support approval is a single Phase 3 confirmatory safety and efficacy study in a therapeutic indication for which the originatorproduct has been approved. The objective of this study is to demonstrate biosimilarity between the originator and biosimilar therapeutics with respect tosafety and efficacy. Subject to discussions with regulators and agreement on trial endpoints, we strive to demonstrate that our biosimilar products are aseffective and safe as the originators. Trial endpoints include considerations such as the number of subjects, statistical significance, confidence intervals andaccumulated safety database size.7 Development PortfolioThe following chart summarizes key information regarding our current biosimilar product candidates: Candidate2Originator ProductStatusCoherus Commercial RightsCHS-1701pegfilgrastim(Neulasta)● Immunogenicity study completed in February 2016.Additional sample analysis per FDA request. Worldwide, ex-Latin America(except Brazil and Argentina) ● Follow-on PK/PD BLA-enabling study met primaryendpoints in August 2016 ●BLA to be resubmitted ● Market Authorization Application (MAA) forEuropean approval accepted in November 2016 CHS-0214etanercept(Enbrel)● Phase 3 clinical trials in psoriasis and in rheumatoidarthritis met primary efficacy endpoints in fourthquarter of 2015 and first quarter of 2016, respectively Worldwide, ex-Latin America(except Brazil)1 ● Completed two bridging Phase 1 studies in October2016 and completed a relative bioavailability datastudy of CHS-0214 at two different concentrations CHS-1420adalimumab(Humira)●Completed Phase 3 clinical study in psoriasis in thefourth quarter of 2016 Worldwide, ex-Latin America(except Brazil) ● Completed PK bioequivalence bridging studies withPhase 3 drug material in March 2017 CHS-3351ranibizumab(Lucentis)● Preclinical stageWorldwide, ex-Latin America(except Brazil)CHS-2020aflibercept(Eylea)● Preclinical stageWorldwide, ex-Latin America(except Brazil) 1The therapeutic protein in etanercept is subject to certain originator-controlled U.S. patents expiring in 2028 and 2029. Assuming these patents arevalid and enforceable, and that we would be unable to obtain a license to them, we do not expect to commercialize CHS-0214 in the U.S. prior to theirexpiration.2We have halted the development of CHS-5217 (bevacizumab (Avastin) biosimilar).Oncology Biosimilar Product OpportunityCHS-1701 (Our Pegfilgrastim (Neulasta) Biosimilar Candidate)Granulocyte colony-stimulating factor (“G-CSF”) is a protein that promotes the survival, proliferation (an increase in the number of cells due to cellgrowth and cell division) and differentiation of certain types of white blood cells known as neutrophils. Recombinant G-CSF therapies, such as filgrastim(Neupogen) and pegfilgrastim (Neulasta), are commonly used in the prevention of chemotherapy-induced neutropenia in cancer, which is characterized by anabnormally low level of neutrophils and other white blood cells that aid in the defense against infections.Product OverviewNeulasta, the reference product for CHS-1701, is a PEGylated form of the recombinant human G-CSF analog, filgrastim. Filgrastim produced from E.coli is not glycosylated. We have performed extensive analytical characterization of CHS-1701 and have determined that its basic and higher-order structuresare similar to Neulasta. We have also performed in vitro characterization of the biological activity of CHS-1701. The biological effect of CHS-1701 onneutrophils was assessed by measuring the proliferation of NFS-60 cells that are commercially available hematopoietic cells (blood cells that give rise toother blood cells) of neutrophilic lineage expressing G-CSF receptors and have been used extensively for testing G-CSF products. The biological activity ofCHS-1701 (proliferation of NFS-60 cells) is a consequence of its binding to G-CSF receptors expressed on NFS-60 cells, activation of this receptor andinduction of the proliferation. We determined that CHS-1701 stimulated the proliferation of the NFS-60 cells in a manner consistent with that observed withNeulasta.8 Neulasta is approved in the U.S. and Europe and is indicated as a treatment to reduce the incidence of infection, as manifested by febrile neutropenia,in patients with non-myeloid malignancies receiving myelosuppressive anticancer drugs associated with a clinically significant incidence of febrileneutropenia.Current Development Status and DataIn August 2016, under the 351(k) (biosimilar) pathway, we filed a BLA, which was accepted by the FDA in October 2016. We received a CRLregarding this BLA from the FDA in June 2017. We currently plan to resubmit the BLA for CHS-1701 after we meet with the FDA in the middle of the firstquarter of 2018 and the execution of any related follow-up work. In October 2016, we filed a MAA for CHS-1701, which was accepted by the EMA inNovember 2016. The BLA and MAA submissions are supported by the successful completion of similarity data from analytical, PK, PD and immunogenicitystudies comparing CHS-1701 and Neulasta.Step 1: Cell Line Development and ManufacturingWe confirmed that the amino acid sequence of CHS-1701 is identical to the originator molecule. CHS-1701 is manufactured in E. coli and PEGylationoccurs as a subsequent step in the manufacturing process. For PEGylation of CHS-1701, we used the equivalent polyethylene glycol (“PEG”), molecule asNeulasta and established that chemistry and site of attachment of the PEG molecule was the same. In December 2015, we entered into a strategicmanufacturing agreement with KBI Biopharma for long-term commercial manufacturing of CHS-1701.Step 2: Analytical Characterization and In Vitro ComparabilityFilgrastim produced from E. coli is not glycosylated. We performed extensive analytical characterization of CHS-1701 and have determined its basicand higher-order structures are similar to Neulasta. We studied the in vitro activity of CHS-1701 in an assay measuring the proliferation of the murinemyeloid leukemia cell line, NFS-60. CHS-1701 stimulated the proliferation of the NFS-60 cells in a concentration-dependent manner, consistent with theproliferation seen with Neulasta.Step 3: In Vivo Animal ComparabilityWith CHS-1701, we have performed two preclinical pharmacology/toxicology studies: a two-week study in rats and a four-week study in monkeys.We performed a two-week rat study to characterize the toxicity and pharmacodynamics of CHS-1701 administered every four days for two weeks, with arecovery period of one week compared to Neulasta. Doses ranged from 0.1 to 1.0 mg/kg. There was no mortality during the study and no systemic signs oftoxicity could be attributed to treatment. There were no differences in clinical observations between the control and treated animals. Dose-proportionalincreases in absolute neutrophil count (“ANC”), and total white blood cell count were observed at all dose levels of CHS-1701. Clinical chemistry findingsand mild to moderate splenic enlargement in the CHS-1701-treated animals were consistent with the pharmacological effects of treatment with Neulasta.We designed a second pharmacology/toxicology study in animals to characterize PK and PD profiles as well as the potential for harmful antibodyresponses to CHS-1701 or other toxic effects, in order to compare these attributes observed for CHS-1701 with those we observed for Neulasta. Weadministered either CHS-1701 or Neulasta at dose levels of 0.075, 0.25 and 0.75 mg/kg once weekly for 4 weeks. We found that CHS-1701 performed in amanner similar to Neulasta in that it increased the production of white blood cells in the bone marrow and resulted in an increase in the amount of whiteblood cells in the blood, in the bone marrow and in lymphoid tissues such as spleen and thymus tissue. Moreover, we found no differences between CHS-1701 and Neulasta in terms of potentially harmful antibody responses or other toxicities, or in terms of PK and PD.Step 4: Pivotal Phase 1 Human Pharmacokinetic and Pharmacodynamic StudyWhile under the 351(a) (novel biologic) regulatory pathway, we conducted a Phase 1, randomized, double-blind, single-dose, two-period crossoverstudy to assess the PK profile, safety and activity of a single subcutaneous 6 mg dose of CHS-1701 compared to Neulasta in 79 healthy human subjectsbetween November 2012 and March 2013.This Phase 1 study met its primary endpoint for purposes of enabling us to pursue a 351(a) (novel biologic) approval pathway, but did not establishbioequivalence necessary to support a 351(k) (biosimilar) pathway. In October 2014, we met with the FDA to discuss our development plan for CHS-1701.We informed the agency of our decision to transition from a 351(a) (novel biologic) approval pathway to a 351(k) (biosimilar) approval pathway.Step 5: Further Studies Supporting 351(k) BLA Regulatory Filing.In March 2015, we received written feedback from the FDA on our development plan for CHS-1701 and we initiated a pivotal PK/PD study for CHS-1701 under the 351(k) (biosimilar) pathway in the U.S., which completed in October 2015. This study met its primary PD endpoints. In terms of PKparameters, the study also met bioequivalence for C max. The AUC portion of the PK results did not meet bioequivalence due to the presence of a low,anomalous PK profile in the first treatment period Neulasta group. Although this PK/PD study9 could support the BLA, we initiated a follow-on PK/PD study in the first quarter of 2016 and successfully completed that study in July 2016. This secondstudy, conducted under the 351(k) (biosimilar pathway), met all of its co-primary endpoints for PK, C max and AUC, and for PD, absolute neutrophil count(ANC max and ANC AUC). For both PK and PD endpoints, the 90% confidence intervals for the GMR were well contained within the pre-specified margins of80% to 125%. This randomized, single-blind, three-sequence, three-period crossover study in healthy subjects assessed PK, PD, and safety (includingimmunogenicity) of a 6 mg subcutaneous (SC) injection of CHS-1701 compared to 6 mg SC dose of Neulasta. A total of 122 healthy volunteer subjects wererandomized to one of three treatment sequences, each with three treatments (Neulasta/Neulasta/CHS-1701 or CHS-1701/Neulasta/Neulasta or Neulasta/CHS-1701/Neulasta). Subject inclusion criteria, procedures and study design, as well as other measures, reflected modifications addressing findings in the previousPK/PD study under the 351(k) (biosimilar) pathway, successfully decreasing subject variability and eliminating the extreme subject outliers previouslyobserved.In May 2015, we initiated an immunogenicity study in healthy volunteers pursuant to this BLA, which was completed in January 2016.We filed the BLA in August 2016, which was accepted by the FDA in October 2016. We received a CRL regarding this BLA from the FDA in June2017. The CRL included a FDA request for the reanalysis of a subset of subject samples using a revised immunogenicity assay. The CRL also requestedcertain additional manufacturing related process information. The FDA did not request a clinical study to be performed on oncology patients. Additionally,the CRL did not indicate that additional qualification lots would be required and the FDA did not raise any concerns over the GMP status of CHS-1701 bulkmanufacturing and fill-finish vendors in the CRL.Immunology (Anti-TNF) Product OpportunityTumor necrosis factor (“TNF”) belongs to a family of soluble protein mediators (“cytokines”) that play an important role in disease progression acrossa number of inflammatory and chronic conditions, including rheumatoid arthritis, psoriatic arthritis, ankylosing spondylitis, Crohn’s Disease, psoriasis andulcerative colitis. Cytokines, such as TNF, are substances produced by cells in the body that can cause a biological effect on other cells in the body. TNF isgenerally understood as the “master regulator” of the body’s immune response and is the key initiator of immune-mediated inflammation in multiple organsystems. Several biologic agents have been developed that inhibit the inflammatory activity of TNF in the context of these diseases, which are collectivelyreferred to as the anti-TNF class of therapeutics. Anti-TNF products with significant global sales include adalimumab (Humira), etanercept (Enbrel),infliximab (Remicade), golimumab (Simponi) and certolizumab pegol injection (Cimzia). These products share a common mechanism of action in that theyinhibit TNF, but differ in their dosing schedules as well as the indications for which they are approved. Collectively, these treatments represent a significantrevenue opportunity, with projected global sales in excess of $39 billion in 2018.CHS-0214 (Our Etanercept (Enbrel) Biosimilar Candidate)Product OverviewEnbrel, the reference product for CHS-0214, is a complex fusion protein that combines the protein for tumor necrosis factor receptor 2 (“TNFR-2”), toanother protein (called IgG1 Fc) which enables the fusion protein to attach to cells in the body. The TNFR-2 portion of the fusion protein binds to solubleand cell bound tumor necrosis factors alpha and beta (“TNF-α” and “TNF-ß,” respectively), and inhibits TNF-α and TNF-ß from binding to cell surfaceproteins that recognize them. Autoimmune diseases are caused by an overactive immune response. Enbrel treats these diseases by inhibiting TNF-α, thusinhibiting the inflammatory cytokine cascade, which is a sequence of events in the body, caused by cytokines, leading to inflammation in a tissue or organ.Enbrel has been approved by the EMA and the FDA for the treatment of the following indications: •rheumatoid arthritis; •juvenile idiopathic arthritis; •psoriatic arthritis; •ankylosing spondylitis; and •plaque psoriasis.Enbrel has been approved by the Japanese Pharmaceutical and Medical Devices Agency (PMDA) for the treatment of the following indications onlywhen conventional therapies are not sufficiently effective: •rheumatoid arthritis; and •juvenile idiopathic arthritis.In 2018, sales of Enbrel are projected to exceed approximately $7.4 billion worldwide, of which $4.8 billion are expected to be generated in the U.S.We developed CHS-0214 for U.S., Europe and Japan. We have licensed CHS-0214 to Orox for certain Caribbean and Latin American countries.10 The expiration of certain originator patents pertaining to Enbrel and Humira in major markets offers us a potential near-term opportunity to introducebiosimilar competitors in these markets. Specifically, we believe we are not precluded by the originator’s patents from introducing an Enbrel biosimilarcandidate in Europe or Japan. In the case of Humira, we do not believe originator patents would preclude us from introducing a biosimilar in the U.S. afterAugust 2022, in Europe after October 2018 and in Japan after August 2018 (for rheumatoid arthritis) or May 2020 (for psoriasis). We intend to findcommercial partners to compete in these markets.Additionally, we filed petitions for Inter Partes Review (“IPR”) in the U.S. Patent and Trademark Office (“USPTO”) seeking invalidation of U.S.Patents 8,163,522 (“ ‘522 patent”) and 8,063,182, (“ ‘182 patent”), which are generally directed to the etanercept protein, the pharmaceutically activecomponent of Enbrel, and, assuming their validity and enforceability, provide market exclusivity for the Enbrel originator molecule until 2029. We expectthe Patent Trial and Appeal Board of the USPTO (“PTAB”) to enter decisions on whether to institute these two IPRs by March 13, 2018 (for the ‘522 patent)and by March 15, 2018 (for the ‘182 patent).Current Development Status and DataWe have successfully advanced CHS-0214 through steps 1 through 5 of biosimilar drug development. Our pivotal Phase 1 human PK/PD study wasconducted in the U.S. We evaluated CHS-0214 in two randomized Phase 3 clinical trials in patients with psoriasis and in patients with rheumatoid arthritis,both of which met their primary endpoints in November 2015 and January 2016, respectively. Although we could file a European marketing application forCHS-0214, subject to legal developments, we intend to prioritize approval and commercialization in the U.S. as we believe it is a more economicallyattractive market. If approved, we believe we will be able to extrapolate the data from our trials in rheumatoid arthritis and psoriasis to gain approval for CHS-0214 in all the indications included in the label for Enbrel.Step 1: Cell Line Development and ManufacturingWe have identified the amino acid sequence of CHS-0214 and confirmed that it is identical to the reference product, Enbrel. We established MasterCell Banks (“MCBs”), and Working Cell Banks (“WCBs”), and produced toxicology materials in the third quarter of 2012 and Phase 1 study materials at aU.S. contract manufacturing organization (“CMO”). We then transferred the manufacturing process to a European CMO for Phase 3 clinical trial supply andto another European CMO for subsequent commercialization.Step 2: Analytical Characterization and In Vitro ComparabilityWe demonstrated CHS-0214 similarity to Enbrel with respect to key physicochemical properties that determine PK/PD, safety and efficacy using abroad spectrum of analytical methods. Through in vitro receptor binding studies, including Fc receptors, complement (C1q) and Fc-mediated functionalactivities (i.e., antibody-dependent cell-mediated cytotoxicity (“ADCC”), and complement-dependent cytotoxicity (“CDC”), we have shown CHS-0214 tohave highly similar pharmacological activity to Enbrel. ADCC and CDC refer to biological mechanisms of immune system defense, which facilitate thebody’s ability to use its immune system to target and destroy a given target cell. Comparing the effects of CHS-0214 and Enbrel on these mechanismsprovides us a basis for determining how similar CHS-0214 is to Enbrel in terms of pharmacological activity.Step 3: In Vivo Animal ComparabilityWe compared CHS-0214 to Enbrel in a single-dose PK study and a 28-day study in evaluating toxicity and PK in cynomolgus monkeys and noappreciable differences were identified.Step 4: Pivotal Phase 1 Human Pharmacokinetic and Pharmacodynamic StudyWe announced the Phase 1 PK similarity study results for CHS-0214 in October 2013. This study was a single dose cross-over study conducted in 60healthy adult human volunteers to evaluate the PK and safety of CHS-0214 compared to Enbrel. CHS-0214 met the primary endpoint of clinical PK similarityto Enbrel with the study demonstrating a 98% correlation between CHS-0214 and Enbrel. We also collected safety data in all subjects and both CHS-0214and Enbrel were well tolerated. Treatment emergent adverse events were similar for each treatment and treatment period, and there were no unusual orunexpected or serious adverse events related to either product. There were no clinically meaningful differences in other safety parameters observed duringthis study.Due to the change in the manufacturing location from the U.S. to the E.U., we conducted an additional Phase 1 PK similarity study comparing CHS-0214 to one lot of Enbrel manufactured in Europe, which met its primary endpoint in April 2015. The design of this study was a single-dose, cross-over studysimilar to the one described above.In 2016, we initiated a Phase 1 PK bioequivalence study comparing E.U. Enbrel to CHS-0214 produced under a new process and also initiated a Phase1 PK comparability study comparing CHS-0214 produced under a new process and CHS-0214 under a former process and used in the two Phase 3 trials. Wecompleted these two studies in October 2016. The Phase 1 PK bioequivalence study achieved the primary PK bioequivalence endpoint. The Phase 1 PKcomparability study provided additional relative bioavailability data for CHS-0214.11 Step 5: Phase 3 Confirmatory Safety and Efficacy Clinical TrialsWe announced the dosing of the first patient in a Phase 3 rheumatoid arthritis clinical trial in June 2014, and subsequently initiated a separate Phase 3clinical trial in psoriasis in July 2014. The design of each Phase 3 clinical trial incorporated guidance from regulatory agencies regarding key studyparameters.The Phase 3 clinical trial in rheumatoid arthritis was designed as a double blind, multi-center, parallel group study in which patients with DMARD(disease-modifying antirheumatic drug)-refractory active rheumatoid arthritis were put on a stable dose of methotrexate. This trial enrolled 647 subjects whowere randomized 1:1 to CHS-0214 50 mg or Enbrel 50 mg, administered subcutaneously weekly over a period of 24 weeks. Following the initial 24-weekdouble-blind period, all patients were moved to a CHS-0214 treatment for a period of 6 months. In January 2016, the trial met its primary end-point of theproportion of subjects achieving ACR20 (20% improvement according to the American College of Rheumatology criteria) at 24 weeks, which was within thepre-specified margins for demonstrating equivalence of CHS-0214 compared to Enbrel. There were no clinically meaningful differences in the safety andimmunogenicity profiles of the two products.The Phase 3 clinical trial in psoriasis was designed as a double-blind, parallel group, multi-center study in patients with active psoriasis. This trialenrolled 521 patients who were randomized 1:1 to CHS-0214 or Enbrel, 50 mg administered subcutaneously twice weekly for the first 12 weeks, switching toonce weekly and continuing in the same treatment arms for an additional 40 weeks, which included four weeks of follow-up. In November 2015, this trial metits primary efficacy endpoint of mean percent change in Psoriasis Area and Severity Index (“PASI”), from baseline and the proportion of subjects achieving a75% improvement in the PASI from baseline (“PASI-75”), scores at 12 weeks.In July 2015, we initiated an open-label, safety extension study (“OLSES”) evaluating the longer-term safety and durability of response of subjectswho completed 48 weeks in the confirmatory safety and efficacy Phase 3 trials of CHS-0214 in patients with rheumatoid arthritis and psoriasis. We enrolled359 subjects in this study, which completed treatment in October 2017.CHS-1420 (Our Adalimumab (Humira) Biosimilar Candidate)Product OverviewHumira, which is the reference product (“originator”) for CHS-1420, is a monoclonal antibody that can bind to a substance in the body known astumor necrosis factor (“TNF”), thereby inhibiting the known effect of this substance as a potent mediator of inflammation. Humira thus provides a therapeuticbenefit for treatment of various inflammatory diseases characterized by increased production of TNF in the body. However, it has also been demonstrated thatHumira can bind to receptors on white blood cells, which may lessen the ability of the body’s immune system to fight infection.Humira has been approved by the EMA and the FDA for the treatment of the following indications only when conventional therapies are notsufficiently effective: •rheumatoid arthritis; •juvenile idiopathic arthritis; •psoriatic arthritis; •ankylosing spondylitis; •Crohn’s Disease; •hidradenitis suppuritiva; •uveitis; •ulcerative colitis; and •plaque psoriasis.Humira has been approved by the PMDA for the treatment of the following indications only when conventional therapies are not sufficientlyeffective: •rheumatoid arthritis; •psoriatic arthritis; •psoriasis; and •Behçet’s Disease.12 Worldwide sales of Humira are projected to exceed $20 billion in 2018, with about $14 billion in the US and $4.2 billion in Europe, the two primaryregions in which we plan to focus our commercialization efforts. CHS-1420 will target a large global anti-TNF market, including but not limited to theworldwide market for the originator product, Humira. According to Evaluate Pharma, in 2018, sales of Humira and Enbrel worldwide are projected to exceed$28 billion.Current Development Status and DataWe have successfully advanced CHS-1420 through steps 1 through 5 of biosimilar drug development. In August 2014, we completed a pivotal Phase1 PK/PD study comparing CHS-1420 to Humira in healthy volunteers. This Phase 1 PK study met the primary endpoint and demonstrated bioequivalence forall prospectively defined endpoints and was conducted under an IND application in the U.S. In August 2015, we initiated a Phase 3 clinical trial in psoriasisand announced positive 12-week data from that trial in August 2016, followed by confirmatory positive 24-week results in January 2017 to support theplanned filing of a marketing application in the U.S. and the E.U. in 2018 or beyond in anticipation of the expiration of certain key AbbVie patents in 2022and 2018. We completed a Phase 1 PK bridging study comparing our Phase 3 material to U.S. manufactured Humira in March 2017. In January 2017, weinitiated a PK study bridging to E.U. manufactured Humira and a PK study comparing U.S. Humira to E.U. Humira. We reached concurrence with regulatoryauthorities in the U.S. and Europe with the objective of designing a harmonized global Phase 3 program to support registration in these territories. Ifapproved, we believe we will be able to extrapolate the data from our trial in psoriasis to gain approval for CHS-1420 in all the indications included in thelabel for Humira.Step 1: Cell Line Development and ManufacturingAs with all our molecules, we matched the amino acid sequence of CHS-1420 to the originator molecule (adalimumab) prior to development anddemonstrated it to be identical. We established Master Cell Banks (“MCBs”), and Working Cell Banks (“WCBs”), and transferred the manufacturing processto a U.S. CMO for manufacturing of Phase 1 study and Phase 3 clinical trial supplies.Step 2: Analytical Characterization and In Vitro ComparabilityWe characterized CHS-1420 and Humira using a multi-dimensional analytical study, demonstrating a high degree of similarity between CHS-1420and Humira. Through extensive biochemical, biophysical and biological analysis we have shown that CHS-1420 has a structure and in vitro activity similarto that of Humira with respect to primary sequence (the linear sequence of the amino acids in the protein), protein folding (the structure of the protein in threedimensions, which is critical to its biological function) and charge profiles (the overall electrical charge characteristic of the protein resulting from theelectrical charges of its constituent amino acids), as well as the protein’s glycosylation profile and potency.We have also shown CHS-1420 to be highly similar to Humira through in vitro receptor binding studies, specifically in its ability to inhibit TNF-amediated cell death. In all of these studies we demonstrated CHS-1420 to have similar pharmacological activity to Humira by evaluating the binding of bothCHS-1420 and, Humira to Fc receptors, complement (C1q) and Fc-mediated functional activities: ADCC and CDC.Step 3: In Vivo Animal ComparabilityWe conducted two nonclinical studies in monkeys in order to compare the PK and nonclinical safety profile of CHS-1420 to Humira. Following onemonth of repeat dosing, we determined the pharmacokinetics of CHS-1420 to be similar to that of Humira.Step 4: Pivotal Phase 1 Human Pharmacokinetic and Pharmacodynamic StudyIn April 2014, we initiated a Phase 1 pivotal PK study in healthy adult volunteers. This is a single dose, double-blind parallel group study designed todemonstrate bioequivalence between CHS-1420 and Humira. A secondary objective was to assess the safety and tolerability of CHS-1420 in this population.The study has been successfully completed and met the primary endpoint and demonstrated bioequivalence with respect to the three prospectively definedPK endpoints. CHS-1420 and Humira were both well tolerated in this single-dose study in healthy adult volunteers.We completed a Phase 1 PK bridging study comparing our Phase 3 material to U.S. manufactured Humira in March 2017.Step 5: Phase 3 Confirmatory Safety and Efficacy Clinical TrialsIn August 2015, we initiated a Phase 3 clinical trial in psoriasis that enrolled 545 subjects. This is a confirmatory, randomized, double-blind, active-control, parallel-group, three-part study in patients with active, moderate to severe, chronic plaque psoriasis. This trial met its primary endpointdemonstrating similarity between CHS-1420 and Humira with respect to percentage of subjects achieving the PASI-75 scores at 12 weeks. Both CHS-1420and Humira were similarly well tolerated with similar safety profiles. In part two of this trial, from week 16 to week 24, half the subjects randomized to Humiracrossed-over to CHS-1420, modeling a chronic patient’s transition to a biosimilar. In January13 2017, we reported that maintenance of PASI-75 was similar across the three subsequent treatment groups: CHS-1420 followed by CHS-1420, Humirafollowed by CHS-1420, and Humira followed by Humira. CHS-1420 and Humira were similarly well tolerated in all groups during part two of the trial. In partthree of the trial, all subjects will receive CHS-1420 for an additional 24 weeks. This trial would be considered the primary confirmatory safety and efficacytrial to support a registration filing.Ophthalmology Product OpportunityCHS-3351 (Our Ranibizumab (Lucentis) Biosimilar Candidate)Lucentis is a monoclonal antibody fragment (“Fab”) created from the same parent mouse antibody as bevacizumab and produced through a microbialculture. It is an anti-angiogenic that has been first approved to treat age-related wet macular degeneration, (“AMD”). Like bevacizumab Lucentis blocksangiogenesis by inhibiting VEGF-A.According to Evaluate Pharma, Lucentis achieved approximately $3.3 billion in worldwide sales in 2017, and is expected to decrease toapproximately $2.8 billion in 2020, when the composition of matter patent on ranibizumab expires in the U.S. We selected Lucentis as the biosimilardevelopment target for our biosimilar, CHS-3351, to leverage the analytics deployed on bevacizumab and because we could address a concentrated marketwhere we believe we can focus resources and establish a therapeutic franchise.Lucentis has been approved by the FDA for the treatment of the following indications: •Neovascular (wet) age-related macular degeneration; •Macular edema following retinal vein occlusion; •Diabetic macular edema; •Diabetic retinopathy; and •Myopic choroidal neovascularization.Current Development Status and DataStep 1: Cell Line Development and ManufacturingWe have identified the amino acid sequence of CHS-3351 and confirmed that it is identical to the reference product, Lucentis. We are currentlyestablishing Master Cell Banks (“MCBs”), as well as Working Cell Banks (“WCBs”). We are currently transferring the manufacturing process to a U.S. CMOfor production of material to supply toxicology studies and clinical trials. CHS-2020 (Our Aflibercept (Eylea) Biosimilar Candidate)Eylea, the reference product for CHS-2020, is a complex fusion protein that combines the vascular endothelial growth factor (VEGF)-binding portionsfrom the extracellular domains of human VEGF receptors 1 and 2, that are fused to the Fc portion of the human IgG1 immunoglobulin and binds tocirculating VEGFs.According to Evaluate Pharma, Eylea achieved approximately $6.2 billion in worldwide sales in 2017, and is expected to increase to approximately$7.0 billion in 2022 worldwide, when it loses market exclusivity in the U.S. We selected Eylea as the biosimilar development target for our biosimilar, CHS-2020, because we could address a concentrated market where we believe we can focus resources and establish a therapeutic franchise.Eylea has been approved by the FDA for the treatment of the following indications: •Neovascular (wet) age-related macular degeneration; •Macular edema following retinal vein occlusion; and •Diabetic retinopathy.Early-Stage Biosimilar Pipeline We are continuously performing product opportunity reviews of additional biosimilar pipeline candidates in conjunction with our scientific advisoryboard and we plan to submit one or two new investigational new drug (IND) applications per year.14 Small Molecule Therapeutic Candidate in DevelopmentCHS-131 is a novel, first-in-class, well-tolerated, once-daily oral drug candidate for multiple sclerosis (MS) patients, which has anti-inflammatoryactivity in the central nervous system (CNS) and crosses the blood-brain barrier. In June 2016, we announced that a study with CHS-131 in treatment-naïve,relapsing remitting multiple sclerosis (RRMS) subjects demonstrated approximately a 50% decrease in the incidence of new contrast-enhancing (CE) lesionsover six months when compared to placebo. CHS-131 was generally well-tolerated and without evidence of immune suppression or the side-effectscommonly seen in other oral multiple MS therapies. This Phase 2b trial was a randomized, double-blind, placebo-controlled clinical study that evaluated theefficacy, safety and tolerability of two orally administered doses (3 mg and 1 mg daily) of CHS-131 against placebo for six months in 227 subjects withRRMS. The primary endpoint of the trial was the reduction in the cumulative number of total CE lesions determined by magnetic resonance imaging (MRI)from baseline to week 24 of study treatment, a standard endpoint for Phase 2 trials in RRMS. Subjects were assessed clinically and by MRI monthly for sixmonths. All MRIs were read in a blinded fashion at a U.S. imaging center. Patients on CHS-131 experienced a statistically significant reduction in CE lesionsthat was dose dependent, with the 3 mg dose resulting in a 52% reduction in CE lesions with a p-value of 0.003 compared to placebo. We are currentlycompleting additional animal studies on CHS-131 to further elucidate the mechanism of action. Further, we completed a study of drug-derived metabolites,which we believe will help support long-term Phase 3 dosing paradigms. We are exploring potential out-licensing opportunities for this asset.Sales and MarketingOur strategy entails licensing our oncology product rights outside of the U.S. to commercially proficient entities, while retaining U.S. rights tocommercialization. Because the sales call points for our clinical stage oncology asset (CHS-1701) in the U.S. are highly concentrated and addressable by arelatively small commercial organization, the preservation of U.S. rights allows us the flexibility to cost effectively build our own commercial capability.For our other biosimilar and small molecule drug candidates (CHS-0214, CHS-1420, CHS-3351, CHS-2020 and CHS-131), we seek to license rightsregionally or globally to commercially proficient partners.ManufacturingWe have entered into agreements with several CMOs for the manufacture and clinical drug supply for our lead products candidates. We continue toscreen other contract manufacturers to meet our clinical, commercial and regulatory supply requirements on a product-by-product basis. In December 2015,we entered into a strategic commercial supply agreement with KBI Biopharma for the supply of CHS-1701. For a discussion of risks related to our sources andavailability of supplies, please see “Risk Factors — Risks Related to Our Ability to Hire Highly Qualified Personnel and Our Reliance on Third Parties.”CompetitionThe development and commercialization of protein-based therapeutics is highly competitive. While we believe that our biologics platform,knowledge, experience and scientific resources provide us with competitive advantages, we face potential competition from many different sources. Suchcompetition includes larger and better-funded pharmaceutical, generic pharmaceutical, specialty pharmaceutical and biotechnology companies, as well asoriginator companies and any other firms developing the biosimilars that would compete with the product candidates in our pipeline and other novelproducts with similar indications.CHS-1701 may face competition from Amgen (which holds rights to Neulasta, the reference product of CHS-1701), Sandoz, Apotex Inc. (“Apotex”),Pfizer and Mylan N.V. (“Mylan”).CHS-0214 may compete with products developed by Pfizer, (which holds ex-North America rights to Enbrel, the reference product of CHS-0214),Sandoz (which has a biosimilar to Enbrel (ErelziTM) approved in the U.S. and in the E.U.), Samsung Bioepis Co Ltd. (“Samsung Bioepis”), which has anEMA-approved biosimilar to Enbrel (BenepaliTM), and LG Chem, Ltd. (“LG”).CHS-1420 may face competition from AbbVie (the holder of rights to Humira, the reference product of CHS-1420), Amgen (which has a biosimilar toHumira (AmjevitaTM) approved in the U.S. and (AmgevitaTM / SolymbicTM) approved in the E.U.), Sandoz, Samsung Bioepis (which has a biosimilar toHumira (ImraldiTM) approved in the E.U.), Pfizer, Mylan, Momenta Pharmaceuticals, Inc. (“Momenta”), Fujifilm Kyowa Kirin Biologics Co., Ltd (“Fujifilm”),and Boehringer Ingelheim GmbH (“Boehringer Ingelheim”) (which has a biosimilar to Humira (CyltezoTM) approved in the U.S. and E.U.).CHS-3351 may face competition from Genentech USA, Inc. (the holder of rights to Lucentis, the reference product of CHS-3351), as well as PfenexInc., Samsung Bioepis, and Formycon AG, companies that have each disclosed development plans for a Lucentis biosimilar candidate.CHS-2020 may face competition from Regeneron Pharmaceuticals, Inc. (the holder of rights to Eylea, the reference product of CHS-2020), as well asMomenta Pharmaceuticals, Inc. and Formycon AG, companies that have each disclosed development plans for an Eylea biosimilar candidate.15 We expect any products that we develop and commercialize directly or with partners to compete on the basis of, among other things, efficacy, safety,price and the availability of reimbursement from government and other third-party payors. Our commercial opportunity could be reduced or eliminated if ourcompetitors develop and commercialize products that are safer, more effective, have fewer or less severe side effects, are more convenient or are lessexpensive than any products that we may develop. Our competitors also may obtain FDA or other regulatory approval for their products more rapidly than wemay obtain approval for ours, which could result in our competitors establishing a strong market position before we are able to enter the market.Collaboration and License AgreementsLicense Agreement with Daiichi Sankyo Company, LimitedIn January 2012, we entered into a license agreement with Daiichi Sankyo Company, Limited (“Daiichi Sankyo”) for the development andcommercialization of certain biosimilar products in certain territories (the “Daiichi Sankyo Agreement”). We granted to Daiichi Sankyo an exclusive, royalty-bearing license to develop, commercialize and use biosimilar versions of etanercept (Enbrel) and rituximab (Rituxan) for the treatment of human diseases andconditions in Japan, Taiwan and South Korea. Daiichi Sankyo had an option, exercisable only within a certain time period, to obtain an exclusive license todevelop and commercialize certain biosimilar products in China. Daiichi Sankyo also had an option, exercisable at any time during the term of theagreement, to obtain a license to manufacture licensed products to support development and commercialization of licensed products in the licensed territory,on a product-by-product basis. Under the Daiichi Sankyo Agreement, we received an upfront payment in cash of $10.0 million and $20.0 million in the formof an equity investment and multiple payments under the memoranda of understanding.In May 2012, Daiichi Sankyo terminated its licensed rights, solely as to CHS-0214, our etanercept biosimilar candidate, in Taiwan and South Korea.In August 2012, Daiichi Sankyo declined its right to expand the territory to include China. In July 2014, Daiichi Sankyo terminated all of its licensed rightsto a biosimilar rituximab product. In July 2017, Daiichi Sankyo announced its decision, which we accepted, to discontinue development of CHS-0214 inJapan and to conclude the parties’ global open-label safety extension study in rheumatoid arthritis. As a result, we regained the rights to develop andcommercialize CHS-0214 in Japan. In August 2017, we entered into a letter of agreement with Daiichi Sankyo to terminate the Daiichi Sankyo Agreement,including any and all memoranda of understanding and other agreements executed between the parties relating to CHS-0214.License Agreement with Baxalta Incorporated, Baxalta US Inc., and Baxalta GmbHWe entered into a license agreement in August 2013 and two subsequent amendments thereto with Baxalta Incorporated, Baxalta US Inc., and BaxaltaGmbH, collectively Baxalta (then Baxter International, Inc., part of Shire plc (“Shire”), as of June 2016), to develop and commercialize an etanerceptbiosimilar molecule, CHS-0214, worldwide, excluding the U.S., Japan, Taiwan, South Korea, China and most of the Caribbean and South American nations(as amended, the “Baxalta Agreement”). On September 26, 2016, Shire issued a termination notice of the Baxalta Agreement, in its entirety as part of itsstrategic portfolio review after its acquisition of Baxalta. Under the Baxalta, Agreement, we received an upfront payment of $30.0 million and were eligibleto receive up to $335.3 million in contingent payments, of which we actually received $215.3 million. Upon the termination of the Baxalta Agreement, weregained from Shire all development and commercial rights previously licensed under the Baxalta Agreement.Distribution Agreement with Orox Pharmaceuticals B.V.In December 2012, we entered into a distribution agreement with Orox Pharmaceuticals B.V. (“Orox”), for the commercialization of biosimilarversions of etanercept (Enbrel), rituximab (Rituxan), adalimumab (Humira) and pegfilgrastim (Neulasta). Under this agreement, we granted to Orox anexclusive license to commercialize the products for the treatment of human diseases and conditions in certain Caribbean and Latin American countries.Under this agreement, Orox has an option, exercisable within a defined time period, to obtain an exclusive license to commercialize certain additionalbiosimilar products in the same field and territory. We are obligated to manufacture and supply licensed products to Orox.We are obligated to develop licensed products and achieve regulatory approval for such products outside of the Caribbean and Latin Americancountries covered by the agreement by specified dates in order to support Orox’s activities under the agreement in its licensed territory. We are eligible toreceive from Orox a share of gross profits in the low 20 percent range from the sale of licensed products, on a product-by-product basis.Our agreement with Orox will expire on a product-by-product and country-by-country basis ten years after regulatory approval of such product in suchcountry, subject to automatic three-year extensions unless Orox notifies us in writing at least 18 months in advance of the date upon which the term wouldotherwise expire that it does not wish to extend the term for such product in such country. Either party may terminate the agreement for material breach by theother party that is not cured within a specified time period. Orox may terminate the Agreement for convenience on a product-by-product basis at any timeupon 12-months prior written notice. Either party may terminate the agreement upon bankruptcy or insolvency of the other party, and we may terminate theagreement immediately upon written notice to Orox if Orox challenges the licensed patents or commits a breach of specified provisions of the agreement.16 License Agreements with Selexis SAIn April 2011 and June 2012, we entered into license agreements with Selexis SA (“Selexis”), under which Selexis granted to us royalty-bearing, non-exclusive, sublicensable licenses under Selexis’s intellectual property rights to manufacture, use and commercialize two of our biosimilar products usingSelexis cell lines. In consideration for the rights granted to us under the agreements, we made cash upfront payments to Selexis and are required to makepayments based upon the achievement of certain development, regulatory and commercial milestones for such biosimilar products, totaling up to €210,000for each of the two products, or a total aggregate amount of €420,000. In addition, we are also required to pay a royalty as a percentage of revenue on aproduct-by-product and country-by-country basis in the low-single digits.We may terminate each agreement at any time upon sixty days written notice to Selexis. Either we or Selexis may terminate an agreement for anymaterial breach by the other party that is not cured within a specified time period or in the event of the other party’s insolvency. Absent earlier termination,the agreements with Selexis terminate on a country-by-country and product-by-product basis on the expiration of the last-to-expire or lapse of the validpatent claims covering such product in such country.Intellectual PropertyOur commercial success depends in part on our ability to avoid infringing the proprietary rights of third parties. Additionally, our commercial successmay depend on our ability to obtain and maintain proprietary protection for our technologies where applicable and to prevent others from infringing ourproprietary rights. We seek to protect our proprietary technologies by, among other methods, filing U.S. and international patent applications on thesetechnologies, inventions and improvements that are important to our business. We also rely on trade secrets, know-how and continuing technologicalinnovation to develop and maintain our proprietary position.The term of individual patents depends upon the legal term of the patents in countries in which they are obtained. In most countries, including theU.S., the patent term is generally 20 years from the earliest date of filing a non-provisional patent application in the applicable country. In the U.S., a patent’sterm may, in certain cases, be lengthened by patent term adjustment, which compensates a patentee for administrative delays by the U.S. Patent andTrademark Office in examining and granting a patent or may be shortened if a patent is terminally disclaimed over a commonly owned patent or a patentnaming a common inventor and having an earlier expiration date.In the normal course of business, we pursue patent protection for inventions related to our product candidates. We own a patent portfolio of eighteenpatent families related to our biosimilar product candidates, each of which includes United States patent applications and/or issued patents, and some includeforeign counterparts to certain of the U.S. patents and patent applications. Our patent portfolio includes issued or pending claims directed to: formulations forCHS-0214 and CHS-1420; methods of manufacturing biological proteins, including CHS-0214 and CHS-1420; and drug products including their methods ofuse and methods of manufacture.We have a non-exclusive license from Genentech under two U.S. patents, which are commonly known as the “Cabilly” patents. The Cabilly patentscover key steps of therapeutic antibody manufacturing methods. One of the Cabilly patent covers a process for producing an immunoglobulin molecule (Ig)in a single host cell; the second Cabilly patent covers a method for making an antibody heavy chain and antibody light chain in a recombinant host cell.Both licensed patents are expected to expire in December 2018. Because we do not anticipate having to rely on the process and method covered by theCabilly patents prior to December 2018, we anticipate that the licensed patents will expire before any financial obligations arise.We do not know whether any of our pending patent applications described above will result in the issuance of any patents or whether the rightsgranted under any patents issuing from these applications will prevent any of our competitors from marketing similar products that may be competitive withour own. Moreover, even if we do obtain issued patents, they will not guarantee us the right to use our patented technology for commercialization of ourproduct candidates. Third parties may have blocking patents that could prevent us from commercializing our own products, even if our products use orembody our own, patented inventions.The validity and enforceability of patents are generally uncertain and involve complex legal and factual questions. Any patents that may issue on ourpending applications may be challenged, invalidated or circumvented, which could limit our ability to stop competitors from marketing products similar toours. Furthermore, our competitors may develop similar or alternative technologies not covered by any patents that may issue to us.In a merger completed February 12, 2014, we acquired InteKrin Therapeutics Inc. (“InteKrin”) and its small molecule peroxisome proliferator-activated receptor gamma (“PPAR gamma”) agonist, CHS-131, which is being developed for the treatment of MS.InteKrin has an exclusive license from Amgen to a portfolio of four patent families related to CHS-131, each of which includes U.S. patentapplications and/or issued patents, and some include foreign counterparts to certain of the U.S. patents and patent applications. The licensed patent portfolioincludes issued or pending claims directed to PPAR gamma modulating molecules and therapeutic product compositions that are expected to expire in 2020and 2021, as well as certain salt forms and polymorphic forms of PPAR gamma modulating molecules that are expected to expire in 2024 (with possibleHatch-Waxman patent term extension). Additionally, InteKrin and Coherus own a portfolio of eight patent families related to CHS-131, each of whichincludes U.S. patent applications and/or issued patents, and some17 include foreign counterparts to certain of the U.S. patents and patent applications. This patent portfolio includes issued or pending claims directed to PPARgamma agonist pharmaceutical compositions, and methods of treating disorders including diabetes, multiple sclerosis, and non-alcoholic fatty liver diseaseor lipodystrophy. These patents and patent applications, if granted, are expected to expire in 2031, 2034 and 2036.For technologies for which we do not seek patent protection, we may rely on trade secrets to protect our proprietary position. However, trade secretsare difficult to protect. We seek to protect our technology and product candidates, in part, by entering into confidentiality agreements with those who haveaccess to our confidential information, including our employees, consultants, advisors, contractors or collaborators. We also seek to preserve the integrity andconfidentiality of our proprietary technology and processes by maintaining physical security of our premises and physical and electronic security of ourinformation technology systems. While we have confidence in these individuals, organizations and systems, agreements or security measures may bebreached and we may not have adequate remedies for any breach. In addition, our trade secrets may otherwise become known or be independently discoveredby competitors. To the extent that our employees, consultants, advisors, contractors and collaborators use intellectual property owned by others in their workfor us, disputes may arise as to the rights in related or resulting know-how and inventions. For a discussion of risks related to our proprietary technology andprocesses, please see “Risk Factors — Risks Related to Intellectual Property.”RegulatoryGovernment Regulation and Product ApprovalGovernment authorities at the federal, state and local level in the U.S. and in other countries extensively regulate, among other things, the research,development, testing, manufacture, packaging, storage, recordkeeping, labeling, advertising, promotion, distribution, marketing, import and export ofpharmaceutical products such as those we are developing. The processes for obtaining regulatory approvals in the U.S. and in foreign countries, along withsubsequent compliance with applicable statutes and regulations, require the expenditure of substantial time and financial resources.FDA Approval ProcessAll of our current product candidates are subject to regulation in the U.S. by the FDA as biological products (“biologics”). The FDA subjects biologicsto extensive pre- and post-market regulation. The Public Health Service Act (“PHSA”), the Federal Food, Drug and Cosmetic Act (“FFDCA”), and otherfederal and state statutes and regulations, govern, among other things, the research, development, testing, manufacture, storage, recordkeeping, approval,labeling, promotion and marketing, distribution, post-approval monitoring and reporting, sampling and import and export of biologics. Failure to complywith applicable U.S. requirements may subject a company to a variety of administrative or judicial sanctions, such as FDA refusal to approve pending BLAs,withdrawal of approvals, clinical holds, warning letters, product recalls, product seizures, total or partial suspension of production or distribution,injunctions, fines, civil penalties or criminal penalties.The PHSA emphasizes the importance of manufacturing control for products whose attributes cannot be precisely defined. The PHSA also providesauthority to the FDA to immediately suspend licenses in situations where there exists a danger to public health, to prepare or procure products in the event ofshortages and critical public health needs and to authorize the creation and enforcement of regulations to prevent the introduction or spread ofcommunicable diseases in the U.S. and between states.The process required by the FDA before a new biologic may be marketed in the U.S. is long, expensive and inherently uncertain. Biologicsdevelopment in the U.S. typically involves preclinical laboratory and animal tests, the submission to the FDA of an investigational new drug (“IND”)application, which must become effective before clinical testing may commence and adequate and well-controlled clinical trials to establish the safety andeffectiveness of the biologic for each indication for which FDA approval is sought. Developing the data to satisfy FDA pre-market approval requirementstypically takes many years and the actual time required may vary substantially based upon the type, complexity and novelty of the product or disease.Preclinical tests include laboratory evaluation of product chemistry, formulation and toxicity, as well as animal trials to assess the characteristics andpotential safety and efficacy of the product. The conduct of the preclinical tests must comply with federal regulations and requirements, including goodlaboratory practices. An IND is a request for authorization from the FDA to administer an investigational new product to humans. The central focus of an INDsubmission is on the general investigational plan and the protocol(s) for human studies, although the IND must also include the results of preclinical testingand animal testing assessing the toxicology, PK, pharmacology and PD characteristics of the product along with other information, including informationabout product chemistry, manufacturing and controls and a proposed clinical trial protocol. Long-term preclinical tests, such as animal tests of reproductivetoxicity and carcinogenicity, may continue after the IND is submitted.An IND must become effective before U.S. clinical trials may begin. A 30-day waiting period after the submission of each IND is required prior to thecommencement of clinical testing in humans. If during the 30-day waiting period the FDA raises concerns or questions related to the proposed clinicalstudies, the sponsor and the FDA must resolve any outstanding concerns or questions before clinical studies can begin. If the FDA has neither commented onnor questioned the IND within this 30-day period, the clinical trial proposed in the IND may begin.18 Clinical trials involve the administration of the investigational new drug or biologic to healthy volunteers or patients with the condition underinvestigation, all under the supervision of a qualified investigator. Clinical trials must be conducted: (i) in compliance with federal regulations; (ii) incompliance with good clinical practice (“GCP”), an international standard meant to protect the rights and health of patients and to define the roles of clinicaltrial sponsors, administrators and monitors; as well as (iii) under protocols detailing the objectives of the trial, the parameters to be used in monitoring safetyand the effectiveness criteria to be evaluated. Each protocol involving testing on U.S. patients and subsequent protocol amendments must be submitted to theFDA as part of the IND.The FDA may order the temporary or permanent discontinuation of a clinical trial at any time or impose other sanctions if it believes that the clinicaltrial either is not being conducted in accordance with FDA requirements or presents an unacceptable risk to the clinical trial patients. The study protocol andinformed consent information for patients in clinical trials must also be submitted to an institutional review board (“IRB”), for approval. An IRB may alsorequire the clinical trial at the site to be halted, either temporarily or permanently, for failure to comply with the IRB’s requirements or may impose otherconditions. The study sponsor may also suspend a clinical trial at any time on various grounds, including a determination that the subjects or patients arebeing exposed to an unacceptable health risk.Assuming successful completion of all required testing in accordance with all applicable regulatory requirements, detailed information regarding theinvestigational product is submitted to the FDA in the form of a BLA requesting approval to market the product for one or more indications. The BLA mustinclude all relevant data available from pertinent preclinical and clinical trials, including negative or ambiguous results as well as positive findings, togetherwith detailed information relating to the product’s chemistry, manufacturing, controls, and proposed labeling, among other things. Data can come fromcompany-sponsored clinical studies intended to test the safety and effectiveness of a use of the product, or from a number of alternative sources, includingstudies initiated by investigators. The FDA will not approve the application unless it determines that the manufacturing processes and facilities are incompliance with cGMP requirements and adequate to assure consistent production of the product within required specifications. Additionally, beforeapproving a BLA, the FDA will typically inspect one or more clinical sites to assure compliance with cGCP. After the FDA evaluates a BLA and conductsinspections of manufacturing facilities where the investigational product and/or its drug substance will be produced, the FDA may issue an approval letter ora complete response letter. An approval letter authorizes commercial marketing of the product with specific prescribing information for specific indications.A complete response letter indicates that the review cycle of the application is complete and the application is not ready for approval. A complete responseletter may require additional clinical data and/or an additional pivotal Phase 3 trial or trials, and/or other significant, expensive and time-consumingrequirements related to clinical trials, preclinical trials or manufacturing. Even if such additional information is submitted, the FDA may ultimately decidethat the BLA does not satisfy the criteria for approval.Abbreviated Licensure Pathway of Biological Products as Biosimilar under 351(k)The Biologics Price Competition and Innovation Act of 2009 (“BPCIA”), amended the PHSA and created an abbreviated approval pathway forbiological products shown to be highly similar to a FDA-licensed reference biological product. The BPCIA attempts to minimize duplicative testing andthereby lower development costs and increase patient access to affordable treatments. Thus, under the 351(k) (biosimilar) approval pathway, an applicationfor licensure of a biosimilar product must include information demonstrating biosimilarity based upon the following, unless the FDA determines otherwise: •analytical studies demonstrating that the proposed biosimilar product is highly similar to the approved product notwithstanding minordifferences in clinically inactive components; •animal studies (including the assessment of toxicity); and •two clinical study phases: first, a clinical study or studies (generally termed “Phase 1”) that demonstrate the PK similarity (e.g. bioequivalencestudy) of the proposed biosimilar to the originator molecule, and second, a clinical study or studies (generally termed “Phase 3”) thatdemonstrate the safety (including immunogenicity), purity and that potency is statistically not inferior to that of the originator in one or moreconditions for which the reference product is licensed and intended to be used.In addition, an application submitted under the 351(k) pathway must include information demonstrating that: •the proposed biosimilar product and reference product utilize the same mechanism of action for the condition(s) of use prescribed,recommended or suggested in the proposed labeling, but only to the extent the mechanism(s) of action are known for the reference product; •the condition or conditions of use prescribed, recommended or suggested in the labeling for the proposed biosimilar product have beenpreviously approved for the reference product; •the route of administration, the dosage form and the strength of the proposed biosimilar product are the same as those for the reference product;and •the facility in which the biological product is manufactured, processed, packed or held meets standards designed to assure that the biologicalproduct continues to be safe, pure and potent.19 Biosimilarity is defined to mean that the proposed biological product is highly similar to the reference product notwithstanding minor differences inclinically inactive components and that there are no clinically meaningful differences between the biological product and the reference product in terms ofthe safety, purity and potency of the product. In addition, biosimilar may also be determined to be “interchangeable” with the reference products, wherebythe biosimilar may be substituted for the reference product without the intervention of the health care provider who prescribed the reference product. Thehigher standard of interchangeability must be demonstrated by information sufficient to show that: •the proposed product is biosimilar to the reference product; •the proposed product is expected to produce the same clinical result as the reference product in any given patient; and •for a product that is administered more than once to an individual, the risk to the patient in terms of safety or diminished efficacy of alternatingor switching between the biosimilar and the reference product is no greater than the risk of using the reference product without such alternationor switch.FDA approval is required before a biosimilar may be marketed in the U.S. However, complexities associated with the large and intricate structures ofbiological products and the process by which such products are manufactured pose significant hurdles to the FDA’s implementation of the 351(k) approvalpathway that are still being worked out by the FDA. For example, the FDA has discretion over the kind and amount of scientific evidence — laboratory,preclinical and/or clinical — required to demonstrate biosimilarity to a licensed biological product. The FDA intends to consider the totality of the evidence,provided by a sponsor to support a demonstration of biosimilarity, and recommends that sponsors use a stepwise approach in the development of theirbiosimilar products. Biosimilar product applications thus may not be required to duplicate the entirety of preclinical and clinical testing used to establish theunderlying safety and effectiveness of the reference product. However, the FDA may refuse to approve a biosimilar application if there is insufficientinformation to show that the active ingredients are the same or to demonstrate that any impurities or differences in active ingredients do not affect the safety,purity or potency of the biosimilar product. In addition, as with BLAs, biosimilar product applications will not be approved unless the product ismanufactured in facilities designed to assure and preserve the biological product’s safety, purity and potency.The submission of an application via the 351(k) pathway does not guarantee that the FDA will accept the application for filing and review, as the FDAmay refuse to accept applications that it finds are incomplete. The FDA will treat a biosimilar application or supplement as incomplete if, among otherreasons, any applicable user fees assessed under the Biosimilar User Fee Amendment of 2017 have not been paid. In addition, the FDA may accept anapplication for filing but deny approval on the basis that the sponsor has not demonstrated biosimilarity, in which case the sponsor may choose to conductfurther analytical, preclinical or clinical studies to demonstrate such biosimilarity under section 351(k) or submit a BLA for licensure as a new biologicalproduct under section 351(a) of the PHSA. For example, the potential for different regulatory outcomes depending on the selected approval pathway has beenillustrated in connection with our development program for CHS-1701. At the outset of our development effort for this product candidate, we elected toproceed under the 351(a) (novel biologic) approval pathway. However, although our Phase 1 PK/PD trial for CHS-1701 met its primary endpoint and wassupportive for purposes of pursuing the 351(a) (novel biologic) approval pathway (which does not require bioequivalence to the originator drug), the trial didnot establish bioequivalence to Neulasta sufficient as would support the 351(k) (biosimilar) approval pathway. In March 2015, we received written feedbackfrom the FDA on our development plan for CHS-1701 and completed two PK/PD studies in support of the 351(k) (biosimilar) pathway and receivedacceptance of our BLA for CHS-1701 in October 2016.The timing of final FDA approval of a biosimilar for commercial distribution depends on a variety of factors, including whether the manufacturer ofthe branded product is entitled to one or more statutory exclusivity periods, during which time the FDA is prohibited from approving any products that arebiosimilar to the branded product. The FDA cannot approve a biosimilar application for 12 years from the date of first licensure of the reference product.Additionally, a biosimilar product sponsor may not submit an application under the 351(k) pathway for four years from the date of first licensure of thereference product. A reference product may also be entitled to exclusivity under other statutory provisions. For example, a reference product designated for asufficiently rare disease or condition, or an orphan drug, may be entitled to seven years of exclusivity under section 360cc of the FFDCA, in which case noproduct that is biosimilar to the reference product may be approved until either the end of the 12-year period provided under §351(k) or the end of the sevenyear orphan drug exclusivity period, whichever occurs later. In certain circumstances, a regulatory exclusivity period can extend beyond the life of a patentand thus block §351(k) applications from being approved on or after the patent expiration date. In addition, the FDA may under certain circumstances extendthe exclusivity period for the reference product by an additional six months if the FDA requests, and the manufacturer undertakes, studies on the effect of itsproduct in children, a so-called pediatric extension.The first biological product determined to be interchangeable with a branded product for any condition of use is also entitled to a period ofexclusivity, during which time the FDA may not determine that another product is interchangeable with the reference product for any condition of use. Thisexclusivity period extends until the earlier of: (1) one year after the first commercial marketing of the first interchangeable product; (2) 18 months afterresolution of a patent infringement suit instituted under 42 U.S.C. § 262(l)(6) against the applicant that submitted the application for the first interchangeableproduct, based on a final court decision regarding all of the patents in the litigation or dismissal of the litigation with or without prejudice; (3) 42 monthsafter approval of the first interchangeable product, if a patent infringement suit instituted under 42 U.S.C. § 262(l)(6) against the applicant that submitted theapplication for the first interchangeable product is still ongoing; or (4) 18 months after approval of the first interchangeable product if the applicant thatsubmitted the application for the first interchangeable product has not been sued under 42 U.S.C. § 262(l)(6).20 Advertising and PromotionOnce a BLA is approved, a product will be subject to continuing post-approval regulatory requirements, including, among other things, requirementsrelating to recordkeeping, periodic reporting, product sampling and distribution, advertising and promotion and reporting of adverse experiences with theproduct. For instance, the FDA closely regulates the post-approval marketing and promotion of biologics, including standards and regulations for direct-to-consumer advertising, off-label promotion, industry-sponsored scientific and educational activities and promotional activities involving the internet. Failureto comply with these regulations can result in significant penalties, including the issuance of warning letters directing a company to correct deviations fromFDA standards, a requirement that future advertising and promotional materials be pre-cleared by the FDA and federal and state civil and criminalinvestigations and prosecutions.Biologics may be marketed only for the approved indications and in accordance with the provisions of the approved labeling. After approval, mostchanges to the approved product, including changes in indications, labeling or manufacturing processes or facilities, require submission and FDA approval ofa new BLA or BLA supplement before the change can be implemented. A BLA supplement for a new indication typically requires clinical data similar to thatin the original application, and the FDA uses the same procedures and actions in reviewing BLA supplements as it does in reviewing BLAs. There are alsocontinuing annual user fee requirements for any marketed products and the establishments at which such products are manufactured, as well as newapplication fees for supplemental applications with clinical data.Adverse Event Reporting and GMP ComplianceAdverse event reporting and submission of periodic reports are required following FDA approval of a BLA. The FDA also may require post-markettesting, including Phase 4 testing, risk evaluation and mitigation strategies (“REMS”), and surveillance to monitor the effects of an approved product, or theFDA may place conditions on an approval that could restrict the distribution or use of the product. In addition, manufacture, packaging, labeling, storage anddistribution procedures must continue to conform to cGMPs after approval. Biologics manufacturers and certain of their subcontractors are required toregister their establishments with the FDA and certain state agencies. Registration with the FDA subjects entities to periodic unannounced inspections by theFDA, during which the agency inspects manufacturing facilities to assess compliance with cGMPs. Accordingly, manufacturers must continue to expendtime, money and effort in the areas of production and quality control to maintain compliance with cGMPs. Regulatory authorities may withdraw productapprovals, request product recalls or impose marketing restrictions through labeling changes or product removals if a company fails to comply withregulatory standards, if it encounters problems following initial marketing or if previously unrecognized problems are subsequently discovered.The FDA may withdraw approval if compliance with regulatory requirements and standards is not maintained or if problems occur after the productreaches the market. Later discovery of previously unknown problems with a product, including adverse events of unanticipated severity or frequency or withmanufacturing processes or failure to comply with regulatory requirements, may result in revisions to the approved labeling to add new safety information;imposition of post-market studies or clinical studies to assess new safety risks; or imposition of distribution restrictions or other restrictions under a REMSprogram. Other potential consequences include, among other things: •restrictions on the marketing or manufacturing of the product, complete withdrawal of the product from the market or product recalls; •fines, warning letters or holds on post-approval clinical trials; •refusal of the FDA to approve pending applications or supplements to approved applications or suspension or revocation of product licenseapprovals; •product seizure or detention or refusal to permit the import or export of products; or •injunctions or the imposition of civil or criminal penalties.Other Healthcare Laws and Compliance RequirementsWe are subject to healthcare regulation and enforcement by the federal government and the states and foreign governments in which we conduct ourbusiness. These laws include, without limitation, state and federal anti-kickback, fraud and abuse, false claims, privacy and security and transparency lawsand regulations.The federal Anti-Kickback Statute prohibits, among other things, any person from knowingly and willfully offering, soliciting, receiving or providingremuneration, directly or indirectly, to induce either the referral of an individual, for an item or service or the purchasing or ordering of a good or service, forwhich payment may be made under federal healthcare programs such as the Medicare and Medicaid programs. The Anti-Kickback Statute is subject toevolving interpretations. In the past, the government has enforced the Anti-Kickback Statute to reach large settlements with healthcare companies based onsham consulting and other financial arrangements with physicians. Further, the recently enacted Patient Protection and Affordable Care Act, as amended bythe Health Care and Education Reconciliation Act (collectively, the “PPACA”), among other things, amends the intent requirement of the federal Anti-Kickback Statute and21 the criminal statute governing healthcare fraud statutes. A person or entity no longer needs to have actual knowledge of these statutes or specific intent toviolate them. In addition, the PPACA provides that the government may assert that a claim including items or services resulting from a violation of thefederal Anti-Kickback Statute constitutes a false or fraudulent claim for purposes of the federal False Claims Act or federal civil money penalties statute. Themajority of states also have anti-kickback laws, which establish similar prohibitions and in some cases may apply to items or services reimbursed by anythird-party payor, including commercial insurers.Additionally, the civil False Claims Act prohibits knowingly presenting or causing the presentation of a false, fictitious or fraudulent claim forpayment 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 inthe name of the government. Violations of the False Claims Act can result in very significant monetary penalties and treble damages. The federal governmentis using the False Claims Act, and the accompanying threat of significant liability, in its investigation and prosecution of pharmaceutical and biotechnologycompanies throughout the country, for example, in connection with the promotion of products for unapproved uses and other sales and marketing practices.The government has obtained multi-million and multi-billion dollar settlements under the False Claims Act in addition to individual criminal convictionsunder applicable 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. ThePPACA, among other things, imposes new reporting requirements on drug manufacturers for payments made by them to physicians and teaching hospitals, aswell as ownership and investment interests held by physicians and their immediate family members. Failure to submit required information may result in civilmonetary penalties of up to an aggregate of $165,786 per year (or up to an aggregate of $1.105 million per year for “knowing failures”), for all payments,transfers of value or ownership or investment interests that are not timely, accurately and completely reported in an annual submission. Certain states alsomandate implementation of commercial compliance programs, impose restrictions on pharmaceutical manufacturer marketing practices and/or require thetracking and reporting of gifts, compensation and other remuneration to physicians.The federal Health Insurance Portability and Accountability Act of 1996 (“HIPAA”) created new federal criminal statutes that prohibit among otheractions, knowingly and willfully executing, or attempting to execute, a scheme to defraud any healthcare benefit program, including private third‑partypayors, knowingly and willfully embezzling or stealing from a healthcare benefit program, willfully obstructing a criminal investigation of a healthcareoffense, and knowingly and willfully falsifying, concealing or covering up a material fact or making any materially false, fictitious or fraudulent statement inconnection with the delivery of or payment for healthcare benefits, items or services. Similar to the federal Anti‑Kickback Statute, a person or entity does notneed to have actual knowledge of the statute or specific intent to violate it in order to have committed a violation.We may also be subject to data privacy and security regulation by both the federal government and the states in which we conduct our business.HIPAA, as amended by the Health Information Technology and Clinical Health Act (“HITECH”) and their respective implementing regulations, includingthe final omnibus rule published on January 25, 2013, imposes specified requirements relating to the privacy, security and transmission of individuallyidentifiable health information. Among other things, HITECH makes HIPAA’s privacy and security standards directly applicable to “business associates,”defined as independent contractors or agents of covered entities that create, receive, maintain or transmit protected health information in connection withproviding a service for or on behalf of a covered entity. HITECH also increased the civil and criminal penalties that may be imposed against covered entities,business associates and possibly other persons, and gave state attorneys general new authority to file civil actions for damages or injunctions in federal courtsto enforce the federal HIPAA laws and seek attorney’s fees and costs associated with pursuing federal civil actions. In addition, state laws govern the privacyand security of health information in certain circumstances, many of which differ from each other in significant ways, thus complicating compliance efforts.Some states require pharmaceutical companies to comply with the pharmaceutical industry’s voluntary compliance guidelines and the relevantcompliance guidance promulgated by the federal government and require manufacturers to report information related to payments and other transfers of valueto healthcare providers and institutions as well as marketing expenditures and pricing information.The shifting commercial compliance environment and the need to build and maintain robust systems to comply with different compliance and/orreporting requirements in multiple jurisdictions increase the possibility that a healthcare company may violate one or more of the requirements. If ouroperations are found to be in violation of any of such laws or any other governmental regulations that apply to us, we may be subject to penalties, including,without limitation, civil and criminal penalties, damages, fines, the curtailment or restructuring of our operations, exclusion from participation in federal andstate healthcare programs and imprisonment, any of which could adversely affect our ability to operate our business and our financial results.International RegulationIn addition to regulations in the U.S., a variety of foreign regulations govern clinical trials, commercial sales and distribution of product candidates.The approval process varies from country to country and the time to approval may be longer or shorter than that required for FDA approval. In Europe, theapproval of a biosimilar for marketing is based on an opinion issued by the EMA and a decision issued by the European Commission. However, substitutionof a biosimilar for the originator is a decision that is made at the local (national) level on a country-by-country basis. Additionally, a number of Europeancountries do not permit the automatic substitution of biosimilars for the22 originator product. Other regions, including Canada, Japan and Korea, also have their own legislation outlining a regulatory pathway for the approval ofbiosimilars. In some cases, other countries have either adopted European guidance (Singapore and Malaysia) or are following guidance issued by the WorldHealth Organization (Cuba and Brazil). While there is overlap in the regulatory requirements across regions, there are also still some areas of non-overlap.Pharmaceutical Coverage, Pricing and ReimbursementIn the U.S. and other countries, sales of any products for which we receive regulatory approval for commercial sale will depend in part on theavailability of coverage and reimbursement from third-party payors, including government health administrative authorities, managed care providers, privatehealth insurers and other organizations. Third-party payors are increasingly examining the medical necessity and cost effectiveness of medical products andservices in addition to safety and efficacy and, accordingly, significant uncertainty exists as to the reimbursement status of newly approved therapeutics. Inaddition, the U.S. government, state legislatures and foreign governments have continued implementing cost-containment programs, including pricecontrols, restrictions on coverage and reimbursement and requirements for substitution of generic products. Adoption of price controls and cost-containmentmeasures and adoption of more restrictive policies in jurisdictions with existing controls and measures could further limit our net revenue and results.Decreases in third-party reimbursement for our product candidates or a decision by a third-party payor to not cover our product candidates could reducephysician utilization of our products and have a material adverse effect on our sales, results of operations and financial condition.The Centers for Medicare & Medicaid Services (“CMS”) issued a proposed Medicare Part B rule in the third quarter of 2015 on biosimilar paymentand coding, which requires that multiple biosimilars to the same reference product be grouped and issued the same J-code for Medicare reimbursementpurposes and that the payment amount for a billing code that describes a biosimilar is based on the average sales price (“ASP”) of all biosimilar products thatreference a common biological product’s license application. However, on November 2, 2017, CMS adopted a final policy to no longer group biologicalproducts with a common reference product into the same code, effective January 1, 2018.Healthcare ReformIn March 2010, President Obama signed the Patient Protection and Affordable Care Act, as amended by the Health Care and Education ReconciliationAct, collectively known as the Affordable Care Act, which substantially changed the way healthcare is financed by both governmental and private insurers inthe U.S., and significantly affected the pharmaceutical industry. The Affordable Care Act contains a number of provisions, including those governingenrollment in federal healthcare programs, reimbursement adjustments and fraud and abuse changes. Additionally, the Affordable Care Act subjects biologicproducts to potential competition by lower‑cost biosimilars; increases the minimum level of Medicaid rebates payable by manufacturers of brand name drugsfrom 15.1% to 23.1%; imposes a non-deductible annual fee on pharmaceutical manufacturers or importers who sell “branded prescription drugs” to specifiedfederal government programs; and addresses a new methodology by which rebates owed by manufacturers under the Medicaid Drug Rebate Program arecalculated for drugs that are inhaled, infused, instilled, implanted or injected.Since its enactment, there have been judicial and Congressional challenges to certain aspects of the Affordable Care Act, and we expect there will beadditional challenges and amendments to the Affordable Care Act in the future. Other legislative changes have been proposed and adopted since theAffordable Care Act was enacted, including aggregate reductions of Medicare payments to providers of 2% per fiscal year and reduced payments to severaltypes of Medicare providers. Moreover, there has recently been heightened governmental scrutiny over the manner in which manufacturers set prices for theirmarketed products, which has resulted in several Congressional inquiries and proposed bills designed to, among other things, bring more transparency toproduct pricing, review the relationship between pricing and manufacturer patient programs, and reform government program reimbursement methodologiesfor drug products. Individual states in the U.S. have also become increasingly active in implementing regulations designed to control pharmaceutical productpricing, including price or patient reimbursement constraints, discounts, restrictions on certain product access and marketing cost disclosure and transparencymeasures, and, in some cases, designed to encourage importation from other countries and bulk purchasing.EmployeesAs of December 31, 2017, we had 122 employees, including a total of 26 employees with M.D. or Ph.D. degrees. Within our workforce, 79 employeesare engaged in research and development and 43 in business development, finance, legal, human resources, facilities, information technology and generalmanagement and administration.Additional InformationWe view our operations and measure our business as one reportable segment operating primarily in the U.S. See Note 2 to our audited consolidatedfinancial statements included elsewhere in this Annual Report on Form 10-K for additional information. Additional information required by this item isincorporated herein by reference to Part I, Item 1A “Risk Factors” and Part II, Item 6 “Selected Financial Data.”23 We were incorporated in Delaware in September 2010. We completed the initial public offering of our common stock in November 2014. Our commonstock is currently listed on The Nasdaq Global Market under the symbol “CHRS.”Our principal executive offices are located at 333 Twin Dolphin Drive, Suite 600, Redwood City, CA 94065, and our telephone number is (650) 649-3530.You may find on our website at http://www.coherus.com electronic copies of our annual report on Form 10-K, quarterly reports on Form 10-Q, currentreports on Form 8-K, and amendments to those reports filed or furnished pursuant to Section 13(a) or 15(d) of the Securities Exchange Act of 1934. Suchfilings are placed on our website as soon as reasonably possible after they are filed with the SEC. Our most recent charter for our audit, compensation, andnominating and corporate governance committees and our Code of Business Conduct and Ethics are available on our website as well. Any waiver of ourCode of Business Conduct and Ethics may be made only by our board of directors. Any waiver of our Code of Business Conduct and Ethics for any of ourdirectors or executive officers must be disclosed on a Current Report on Form 8-K within four business days, or such shorter period as may be required underapplicable regulation.You can read our SEC filings over the Internet at the SEC’s web site at www.sec.gov. You may also read and copy any document we file with the SECat its public reference facilities at 100 F Street, N.E., Room 1580, Washington, D.C. 20549. You may also obtain copies of the documents at prescribed ratesby writing to the Public Reference Section of the SEC at 100 F Street, N.E., Room 1580, Washington, D.C. 20549. Please call the SEC at (202) 551-8090 or(800) 732-0330 for further information on the operation of the public reference facilities. 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 Condition and Capital RequirementsWe have a limited operating history in an emerging regulatory environment on which to assess our business, have incurred significant losses since ourinception and anticipate that we will continue to incur significant losses for the foreseeable future.We are a biopharmaceutical company with a limited operating history in an emerging regulatory environment. We have incurred net losses in eachyear since our inception in September 2010, including net losses of $238.3 million, $127.8 million and $223.9 million for the years ended December 31,2017, 2016 and 2015, respectively. As of December 31, 2017, we had an accumulated deficit of $775.5 million.We have devoted substantially all of our financial resources to identify and develop our product candidates, including conducting, among otherthings, analytical characterization, process development and manufacturing, formulation and clinical studies, and providing general and administrativesupport for these operations. To date, we have financed our operations primarily through the sale of equity securities and convertible notes, as well as throughour license agreements with Baxalta Incorporated, Baxalta US Inc., and Baxalta GmbH (collectively “Baxalta”, now subsidiaries of Shire plc), and DaiichiSankyo. In September 2016, we regained development and commercial rights for CHS-0214 (our etanercept (Enbrel) biosimilar candidate) from Baxalta forEurope, Canada, Brazil, the Middle East and other territories. In July 2017, we regained the development rights for CHS-0214 in Japan as a result of thetermination of the Daiichi Sankyo Agreement due to Daiichi Sankyo’s decision to discontinue the development of CHS-0214 in Japan. The amount of ourfuture net losses will depend, in part, on the rate of our future expenditures and our ability to obtain funding through equity or debt financings or strategiccollaborations. Biopharmaceutical product development is a highly speculative undertaking and involves a substantial degree of risk. We completed Phase 3or other BLA-enabling development with all our lead products, CHS-1701 (our pegfilgrastim (Neulasta) biosimilar candidate), CHS-1420 (our adalimumab(Humira) biosimilar candidate and CHS-0214 (our etanercept (Enbrel) biosimilar candidate). Our BLA for CHS-1701 was accepted by the FDA in October2016 and we received a CRL from the FDA in June 2017. Our MAA for CHS-1701 was accepted by the EMA in November 2016. It may be several monthsbefore we file for market approval with the relevant regulatory agencies for CHS-1420 and CHS-0214. We have not yet initiated clinical trials for CHS-3351(our ranibizumab (Lucentis) biosimilar) or for CHS-2020 (our afilbercept (Eylea) biosimilar). If we obtain regulatory approval to market a biosimilar productcandidate, our future revenue will depend upon the size of any markets in which our product candidates may receive approval and our ability to achievesufficient market acceptance, pricing, reimbursement from third-party payors and adequate market share for our product candidates in those markets.However, even if one or more of our product candidates gain regulatory approval and are commercialized, we may never become profitable.We expect to continue to incur significant expenses and sustained operating losses for the foreseeable future. Our expenses will increase substantiallyif and as we: •establish a sales, marketing and distribution infrastructure to commercialize any products for which we may obtain marketing approval;24 •continue our nonclinical and clinical development of our product candidates; •initiate additional nonclinical, clinical or other studies for our product candidates; •expand the scope of our current clinical studies for our product candidates; •advance our programs into more expensive clinical studies; •change or add contract manufacturers, clinical research service providers, testing laboratories, device suppliers, legal service providers or othervendors or suppliers; •seek regulatory and marketing approvals for our product candidates that successfully complete clinical studies; •seek to identify, assess, acquire and/or develop other biosimilar product candidates or products that may be complementary to our products; •make upfront, milestone, royalty or other payments under any license agreements; •seek to create, maintain, protect and expand our intellectual property portfolio; •engage legal counsel and technical experts to help us evaluate and avoid infringing any valid and enforceable intellectual property rights ofthird parties; •engage in litigation including patent litigation and IPR proceedings with originator companies or others that may hold patents; •seek to attract and retain skilled personnel; •create additional infrastructure to support our operations as a public company and our product development and planned futurecommercialization efforts; and •experience any delays or encounter issues with any of the above, including but not limited to failed studies, conflicting results, safety issues,manufacturing delays, litigation or regulatory challenges that may require longer follow-up of existing studies, additional major studies oradditional supportive studies or analyses in order to pursue marketing approval.Further, the net losses we incur may fluctuate significantly from quarter-to-quarter and year-to-year such that a period-to-period comparison of ourresults of operations may not be a good indication of our future performance quarter-to-quarter and year-to-year due to factors including the timing of clinicaltrials, any litigation that we may initiate or that may be initiated against us, the execution of collaboration, licensing or other agreements and the timing ofany payments we make or receive thereunder.We have never generated any revenue from product sales and may never be profitable.Although we have received upfront payments, milestone and other contingent payments and/or funding for development from some of ourcollaboration and license agreements, we have no products approved for commercialization and have never generated any revenue from product sales. Ourability to generate meaningful revenue and achieve profitability depends on our ability, alone or with strategic collaboration partners, to successfullycomplete the development of, and obtain the regulatory and marketing approvals necessary to commercialize, one or more of our product candidates. Wecannot predict when we will begin generating revenue from product sales, as this depends heavily on our success in many areas, including but not limited to: •obtaining regulatory and marketing approvals for product candidates for which we complete clinical studies; •launching and commercializing product candidates for which we obtain regulatory and marketing approval, either directly or withcollaboration partners or distributors; •obtaining adequate third-party coverage and reimbursements for our products; •obtaining market acceptance of our product candidates as viable treatment options; •completing nonclinical and clinical development of our product candidates; •developing and testing of our product formulations; •attracting, hiring and retaining qualified personnel; •developing a sustainable and scalable manufacturing process for any approved product candidates and establishing and maintaining supplyand manufacturing relationships with third parties that can conduct the process and provide adequate (in amount and quality) products tosupport clinical development and the market demand for our product candidates, if approved; •addressing any competing technological and market developments; •identifying, assessing and developing (or acquiring/in-licensing) new product candidates;25 •negotiating favorable terms in any collaboration, licensing or other arrangements into which we may enter; •maintaining, protecting and expanding our portfolio of intellectual property rights, including patents, trade secrets and know-how; and •defending against any litigation including patent infringement lawsuits, that may be filed against us, or achieving successful outcomes in IPRpetitions that we have filed, or may in the future file, against third parties.Even if one or more of the product candidates that we develop is approved for commercial sale, we anticipate incurring significant costs tocommercialize any such product. Our expenses could increase beyond our expectations if we are required by the FDA, the EMA, other regulatory agencies,domestic or foreign, or by any unfavorable outcomes in intellectual property litigation filed against us, to change our manufacturing processes or assays or toperform clinical, nonclinical or other types of studies in addition to those that we currently anticipate. In cases where we are successful in obtainingregulatory approvals to market one or more of our product candidates, our revenue will be dependent, in part, upon the size of the markets in the territories forwhich we gain regulatory approval, the number of biosimilar competitors in such markets, the accepted price for the product, the ability to get reimbursementat any price, the nature and degree of competition from originators and other biosimilar companies (including competition from large pharmaceuticalcompanies entering the biosimilar market that may be able to gain advantages in the sale of biosimilar products based on brand recognition and/or existingrelationships with customers and payors) and whether we own (or have partnered) the commercial rights for that territory. If the market for our productcandidates (or our share of that market) is not as significant as we expect, the indication approved by regulatory authorities is narrower than we expect or thereasonably accepted population for treatment is narrowed by competition, physician choice or treatment guidelines, we may not generate significant revenuefrom sales of such products, even if approved. If we are unable to successfully complete development and obtain regulatory approval for our products, ourbusiness may suffer. Additionally, if we are not able to generate revenue from the sale of any approved products, we may never become profitable.We will need to raise substantial additional funding. This additional funding may not be available on acceptable terms or at all. Failure to obtain thisnecessary capital when needed may force us to delay, limit or terminate our product development and commercialization efforts or other operations.As of December 31, 2017, our cash, cash equivalents and investments in marketable securities were $126.9 million. We expect that our existing cashand cash equivalents will be sufficient to fund our current operations for at least the next 12 months. In addition, our operating plans may change as a resultof many factors that may currently be unknown to us, and we may need to seek additional funds sooner than planned. Our future funding requirements willdepend on many factors, including but not limited to: •the scope, rate of progress, results and cost of our clinical studies, nonclinical testing and other related activities; •the cost of manufacturing clinical drug supplies and establishing commercial supplies, of our product candidates and any products that we maydevelop; •the number and characteristics of product candidates that we pursue; •the cost, timing and outcomes of regulatory approvals; •the cost and timing of establishing sales, marketing and distribution capabilities; •the terms and timing of any collaborative, licensing and other arrangements that we may establish, including any milestone and royaltypayments thereunder; and •the cost, timing and outcomes of any litigation that we may file or that may be filed against us by third parties.Any additional fundraising efforts may divert our management from their day-to-day activities, which may adversely affect our ability to develop andcommercialize our product candidates. In addition, we cannot guarantee that future financing will be available in sufficient amounts or on terms acceptableto us, if at all. Moreover, the terms of any financing may adversely affect the holdings or the rights of our stockholders, and the issuance of additionalsecurities, whether equity or debt, by us or the possibility of such issuance may cause the market price of our shares to decline. The sale of additional equityor convertible securities would dilute the share ownership of our existing stockholders. The incurrence of indebtedness could result in increased fixedpayment obligations and we may be required to agree to certain restrictive covenants, such as limitations on our ability to incur additional debt, limitationson our ability to acquire, sell or license intellectual property rights and other operating restrictions that could adversely impact our ability to conduct ourbusiness. We could also be required to seek funds through arrangements with collaborative partners or otherwise at an earlier stage than otherwise would bedesirable and we may be required to relinquish rights to some of our technologies or product candidates or otherwise agree to terms unfavorable to us, any ofwhich may have a material adverse effect on our business, operating results and prospects. Even if we believe we have sufficient funds for our current or futureoperating plans, we may seek additional capital if market conditions are favorable or for specific strategic considerations.If we are unable to obtain funding on a timely basis, we may be required to significantly curtail, delay or discontinue one or more of our research ordevelopment programs or the commercialization of any product candidates or be unable to expand our operations or otherwise capitalize on our businessopportunities, as desired, which could materially affect our financial condition and results of operations.26 Risks Related to the Discovery and Development of Our Product CandidatesWe are heavily dependent on the clinical success, regulatory approval and commercial success of our product candidates. We cannot give any assurancethat any of our product candidates will receive regulatory approval, which is necessary before they can be commercialized.To date, we have invested substantially all of our efforts and financial resources to identify, acquire and develop our product candidates. Our futuresuccess is dependent on our ability to develop, obtain regulatory approval for, and then commercialize and obtain adequate third party coverage andreimbursement for one or more product candidates. We currently do not have any approved products and generate no revenue from sales of any products, andwe may never be able to develop or commercialize a marketable product.Our product candidates are in varying stages of development and will require additional clinical development, management of nonclinical, clinicaland manufacturing activities, regulatory approval, adequate manufacturing supplies, commercial organization and significant marketing efforts before wegenerate any revenue from product sales. Whereas CHS-1701 and CHS-0214 have completed clinical development, CHS-1420 is still completing severalclinical trials. We have not yet initiated clinical trials for CHS-3351.Our clinical trials must use originator products as comparators, and such supplies may not be available on a timely basis to support such trials.We cannot be certain that any of our product candidates will be successful in clinical trials or receive regulatory approval. Further, our productcandidates may not receive regulatory approval even if they are successful in clinical trials. For example, in June 2017, we received a CRL from the FDA inresponse to our BLA for CHS-1701, identifying certain issues, including a request for reanalysis of a subset of subject samples with a revised immunogenicityassay and requests for certain additional manufacturing related process information, which must be addressed before approval can be granted. Although weintend to address the issues the FDA raised in the CRL, we may not be able to do so in a timely manner or at all, and CHS-1701 may not receive FDAapproval. If we and our existing or future collaboration partners do not receive regulatory approvals for our product candidates, we may not be able tocontinue our operations.We, together with our collaboration partners, generally plan to seek regulatory approval to commercialize our product candidates in the U.S., theEuropean Union (“E.U.”), and in additional foreign countries where we or our partners have commercial rights. To obtain regulatory approval, we and ourcollaboration partners must comply with numerous and varying regulatory requirements of such countries regarding safety, efficacy, chemistry,manufacturing and controls, clinical studies, commercial sales and pricing and distribution of our product candidates. Even if we and our collaborationpartners are successful in obtaining approval in one jurisdiction, we cannot ensure that we will obtain approval in any other jurisdictions. If we and ourcollaboration partners are unable to obtain approval for our product candidates in multiple jurisdictions, our revenue and results of operations could benegatively affected.The regulatory approval processes of the FDA, EMA and comparable foreign authorities are lengthy, time consuming and inherently unpredictable, andthe regulatory approval requirements for biosimilars are evolving. If we and our collaboration partners are ultimately unable to obtain regulatoryapproval for our product candidates, our business will be substantially harmed.The research, development, testing, manufacturing, labeling, packaging, approval, promotion, advertising, storage, marketing, distribution, post-approval monitoring and reporting and export and import of biologic products are subject to extensive regulation by the FDA and other regulatoryauthorities in the U.S. by the EMA and EEA Competent Authorities in the European Economic Area (“EEA”), and by other regulatory authorities in othercountries, which regulations differ from country to country. Neither we nor any existing or future collaboration partners are permitted to market our productcandidates in the U.S. until we and our collaboration partners receive approval from the FDA, or in the EEA until we and our collaboration partners receiveE.U. Commission or EEA Competent Authority approvals.The time required to obtain approval by the FDA and comparable foreign authorities is unpredictable, may take many years following the completionof clinical studies and depends upon numerous factors. In addition, approval policies, regulations or the type and amount of clinical data necessary to gainapproval may change during the course of a product candidate’s clinical development and may vary among jurisdictions, which may cause delays in theapproval or the decision not to approve an application. Neither we nor any collaboration partner has obtained regulatory approval for any of our productcandidates, and it is possible that none of our current or future product candidates will ever obtain regulatory approval.Applications for our product candidates could fail to receive regulatory approval for many reasons, including but not limited to the following: •the data collected from clinical studies of our product candidates may not be sufficient to support the submission of a BLA, a biosimilarproduct application under the 351(k) pathway of the Public Health Service Act (“PHSA”), a biosimilar marketing authorization under Article 6of Regulation (EC) No. 726/2004 and/or Article 10(4) of Directive 2001/83/EC in the EEA or other submission or to obtain regulatoryapproval in the U.S., the EEA or elsewhere; •the FDA or comparable foreign regulatory authorities may disagree with the design or implementation of our clinical studies; •the population studied in the clinical program may not be sufficiently broad or representative to assure safety in the full population for whichwe seek approval;27 •the FDA or comparable foreign regulatory authorities may disagree with our interpretation of data from analytical and bioanalytical studies,nonclinical studies or clinical studies; •we may be unable to demonstrate to the FDA or comparable foreign regulatory authorities that a product candidate’s risk-benefit ratio for itsproposed indication is acceptable; •the FDA or comparable foreign regulatory authorities may fail to approve the manufacturing processes, test procedures and specifications orfacilities of third-party manufacturers with which we contract for clinical and commercial supplies; and •the approval policies or regulations of the FDA or comparable foreign regulatory authorities may significantly change in a manner renderingour clinical data insufficient for approval.This approval process, as well as the unpredictability of the results of clinical studies, may result in our failure to obtain regulatory approval to marketany of our product candidates, which would significantly harm our business. Any delays in the commencement or completion of clinical testing couldsignificantly impact our product development costs and could result in the need for additional financing.If we are not able to demonstrate biosimilarity of our biosimilar product candidates to the satisfaction of regulatory authorities, we will not obtainregulatory approval for commercial sale of our biosimilar product candidates and our future results of operations would be adversely affected.Our future results of operations depend, to a significant degree, on our ability to obtain regulatory approval for and to commercialize our proposedbiosimilar products. To obtain regulatory approval for the commercial sale of these product candidates, we will be required to demonstrate to the satisfactionof regulatory authorities, among other things, that our proposed biosimilar products are highly similar to biological reference products already licensed bythe regulatory authority pursuant to marketing applications, notwithstanding minor differences in clinically inactive components, and that they have noclinically meaningful differences as compared to the marketed biological products in terms of the safety, purity and potency of the products. Each individualjurisdiction may apply different criteria to assess biosimilarity, based on a preponderance of the evidence that can be interpreted subjectively in some cases.In the EEA, the similar nature of a biosimilar and a reference product is demonstrated by comprehensive comparability studies covering quality, biologicalactivity, safety and efficacy.It is uncertain if regulatory authorities will grant the full originator label to biosimilar product candidates when they are approved. For example, aninfliximab (Remicade) biosimilar molecule was approved in Europe and in the U.S. for the full originator label but received a much narrower originator labelwhen initially approved in Canada. That infliximab biosimilar only received full label extension in Canada in 2016 after providing additional clinical data.A similar outcome could occur with respect to one or more of our product candidates and there is no guarantee that our product candidates will receive a fulloriginator label even after the provision of additional clinical data.In the event that regulatory authorities require us to conduct additional clinical trials or other lengthy processes, the commercialization of ourproposed biosimilar products could be delayed or prevented. Delays in the commercialization of or the inability to obtain regulatory approval for theseproducts could adversely affect our operating results by restricting or significantly delaying our introduction of new biosimilars.The structure of complex proteins used in protein-based therapeutics is inherently variable and highly dependent on the processes and conditions used tomanufacture them. If we are unable to develop manufacturing processes that achieve a requisite degree of biosimilarity to the originator drug, and withina range of variability considered acceptable by regulatory authorities, we may not be able to obtain regulatory approval for our products.Protein-based therapeutics are inherently heterogeneous and their structures are highly dependent on the production process and conditions. Productsfrom one production facility can differ within an acceptable range from those produced in another facility. Similarly, physicochemical differences can alsoexist among different lots produced within a single facility. The physicochemical complexity and size of biologic therapeutics create significant technicaland scientific challenges in the context of their replication as biosimilar products.The inherent variability in protein structure from one production lot to another is a fundamental consideration with respect to establishingbiosimilarity to an originator product to support regulatory approval requirements. For example, the glycosylation of the protein, meaning the manner inwhich sugar molecules are attached to the protein backbone of a therapeutic protein when it is produced in a living cell, is critical to therapeutic efficacy,half-life (how long the drug stays in the body), efficacy and even safety of the therapeutic and is therefore a key consideration for biosimilarity. Defining andunderstanding the variability of an originator molecule in order to match its glycosylation profile requires significant skill in cell biology, proteinpurification and analytical protein chemistry. Furthermore, manufacturing proteins with reliable and consistent glycosylation profiles at scale is challengingand highly dependent on the skill of the cell biologist and process scientist.There are extraordinary technical challenges in developing complex protein-based therapeutics that not only must achieve an acceptable degree ofsimilarity to the originator molecule in terms of characteristics such as the unique glycosylation pattern, but also the ability to develop manufacturingprocesses that can replicate the necessary structural characteristics within an acceptable range of variability sufficient to satisfy regulatory authorities.28 Given the challenges caused by the inherent variability in protein production, we may not be successful in developing our products if regulatorsconclude that we have not achieved a sufficient level of biosimilarity to the originator product, or that the processes we use are unable to generate ourproducts within an acceptable range of variability.Clinical drug development involves a lengthy and expensive process and we may encounter substantial delays in our clinical studies or may fail todemonstrate safety and efficacy to the satisfaction of applicable regulatory authorities.Before obtaining marketing approval from regulatory authorities for the sale of our product candidates, we (and/or our collaboration partners) mustconduct clinical studies to demonstrate the safety and efficacy of the product candidates in humans.Clinical testing is expensive and can take many years to complete, and its outcome is inherently uncertain. Failure can occur at any time during theclinical study process. The results of preclinical studies and early clinical studies of our product candidates may not be predictive of the results of later-stageclinical studies. Product candidates that have shown promising results in early-stage clinical studies may still suffer significant setbacks in subsequentregistration clinical studies. There is a high failure rate for product candidates proceeding through clinical studies, and product candidates in later stages ofclinical studies may fail to show the desired safety and efficacy traits despite having progressed through preclinical studies and initial clinical studies.A number of companies in the biopharmaceutical industry have suffered significant setbacks in advanced clinical studies due to lack of efficacy or adversesafety profiles, notwithstanding promising results in earlier studies. Nonclinical and clinical data are also often susceptible to varying interpretations andanalyses. We do not know whether any clinical studies we may conduct will demonstrate consistent or adequate efficacy and safety to obtain regulatoryapproval.We cannot guarantee that any clinical studies will be conducted as planned or completed on schedule, if at all. A failure of one or more clinical studiescan occur at any stage of testing, and our future clinical studies may not be successful. Events that may prevent successful or timely completion of clinicaldevelopment include but are not limited to: •inability to generate sufficient preclinical, toxicology or other in vivo or in vitro data to support the initiation of human clinical studies; •delays in reaching a consensus with regulatory agencies on study design; •delays in reaching agreement on acceptable terms with prospective contract research organizations (“CROs”), and clinical study sites, the termsof which can be subject to extensive negotiation and may vary significantly among different CROs and clinical study sites; •delays in obtaining required Institutional Review Board (“IRB”), approval at each clinical study site; •imposition of a clinical hold by regulatory agencies, after review of an investigational new drug (“IND”), application or amendment orequivalent application or amendment, or an inspection of our clinical study operations or study sites or as a result of adverse events reportedduring a clinical trial; •delays in recruiting suitable patients to participate in our clinical studies sponsored by us or our partners; •difficulty collaborating with patient groups and investigators; •failure by our CROs, other third parties or us to adhere to clinical study requirements; •failure to perform in accordance with the FDA’s good clinical practices requirements or applicable regulatory guidelines in other countries; •delays in patients completing participation in a study or return for post-treatment follow-up, or patients dropping out of a study; •occurrence of adverse events associated with the product candidate that are viewed to outweigh its potential benefits; •changes in regulatory requirements and guidance that require amending or submitting new clinical protocols; •the cost of clinical studies of our product candidates being greater than we anticipate; •clinical studies of our product candidates producing negative or inconclusive results, which may result in us deciding or regulators requiring usto conduct additional clinical studies or abandon product development programs; and •delays in manufacturing, testing, releasing, validating or importing/exporting and/or distributing sufficient stable quantities of our productcandidates and originator products for use in clinical studies or the inability to do any of the foregoing.Any inability to successfully complete nonclinical and clinical development could result in additional costs to us or impair our ability to generaterevenue. In addition, if we make manufacturing or formulation changes to our product candidates, we may need to conduct additional studies to bridge ourmodified product candidates to earlier versions.29 For example, we altered the manufacturing processes for CHS-0214 and CHS-1420 and will need to provide data to the FDA and foreign regulatoryauthorities demonstrating that the change in manufacturing process has not changed the product candidate. If we are unable to make that demonstration tothe FDA or comparable foreign regulatory authorities, we could face significant delays or fail to obtain regulatory approval to market the product, whichcould significantly harm our business. In March 2017, we completed a clinical PK bioequivalence study comparing CHS-1420 to U.S. manufactured Humira.In August 2017, we completed a clinical PK bioequivalence study comparing CHS-1420 to European manufactured Humira.Our product candidates may cause undesirable side effects or have other properties that could delay or prevent their regulatory approval, limit thecommercial profile of an approved label or result in significant negative consequences following marketing approval, if granted.As with most pharmaceutical products, use of our product candidates could be associated with side effects or adverse events, which can vary inseverity (from minor reactions to death) and frequency (infrequent or prevalent). Side effects or adverse events associated with the use of our productcandidates may be observed at any time, including in clinical trials or when a product is commercialized. Undesirable side effects caused by our productcandidates could cause us or regulatory authorities to interrupt, delay or halt clinical studies and could result in a more restrictive label or the delay or denialof regulatory approval by the FDA or other comparable foreign authorities. Results of our studies could reveal a high and unacceptable severity andprevalence of side effects such as toxicity or other safety issues and could require us or our collaboration partners to perform additional studies or haltdevelopment or sale of these product candidates or expose us to product liability lawsuits, which will harm our business. In such an event, we may berequired by regulatory agencies to conduct additional animal or human studies regarding the safety and efficacy of our product candidates, which we havenot planned or anticipated or our studies could be suspended or terminated, and the FDA or comparable foreign regulatory authorities could order us to ceasefurther development of or deny or withdraw approval of our product candidates for any or all targeted indications. There can be no assurance that we willresolve any issues related to any product-related adverse events to the satisfaction of the FDA or any other regulatory agency in a timely manner, if ever,which could harm our business, prospects and financial condition.Additionally, product quality characteristics have been shown to be sensitive to changes in process conditions, manufacturing techniques, equipmentor sites and other such related considerations, hence any manufacturing process changes we implement prior to or after regulatory approval could impactproduct safety and efficacy.Drug-related side effects could affect patient recruitment for clinical trials, the ability of enrolled patients to complete our studies or result in potentialproduct liability claims. We currently carry product liability insurance and we are required to maintain product liability insurance pursuant to certain of ourlicense agreements. We believe our product liability insurance coverage is sufficient in light of our current clinical programs; however, we may not be able tomaintain insurance coverage at a reasonable cost or in sufficient amounts to protect us against losses due to liability. A successful product liability claim orseries of claims brought against us could adversely affect our results of operations and business. In addition, regardless of merit or eventual outcome, productliability claims may result in impairment of our business reputation, withdrawal of clinical study participants, costs due to related litigation, distraction ofmanagement’s attention from our primary business, initiation of investigations by regulators, substantial monetary awards to patients or other claimants, theinability to commercialize our product candidates and decreased demand for our product candidates, if approved for commercial sale.Additionally, if one or more of our product candidates receives marketing approval, and we or others later identify undesirable side effects caused bysuch products, a number of potentially significant negative consequences could result, including but not limited to: •regulatory authorities may withdraw approvals of such product; •regulatory authorities may require additional warnings on the label; •we may be required to create a Risk Evaluation and Mitigation Strategy (“REMS”), plan, which could include a medication guide outlining therisks of such side effects for distribution to patients, a communication plan for healthcare providers and/or other elements to assure safe use; •we could be sued and held liable for harm caused to patients; and •our reputation may suffer.Any of these events could prevent us from achieving or maintaining market acceptance of the particular product candidate, if approved, and couldsignificantly harm our business, results of operations and prospects.If we receive approval, regulatory agencies including the FDA and foreign regulatory agencies, regulations require that we report certain informationabout adverse medical events if those products may have caused or contributed to those adverse events. The timing of our obligation to report would betriggered by the date we become aware of the adverse event as well as the nature of the event. We may fail to report adverse events we become aware of withinthe prescribed timeframe. We may also fail to appreciate that we have become aware of a reportable adverse event, especially if it is not reported to us as anadverse event or if it is an adverse event that is unexpected or removed in time from the use of our products. If we fail to comply with our reportingobligations, the FDA or foreign regulatory agencies could take action including criminal prosecution, the imposition of civil monetary penalties, seizure ofour products or delay in approval or clearance of future products.30 The development, manufacture and commercialization of biosimilar products under various global regulatory pathways pose unique risks.U.S. Regulatory Framework for BiosimilarsWe and our collaboration partners intend to pursue market authorization globally. In the U.S., an abbreviated pathway for approval of biosimilarproducts was established by the Biologics Price Competition and Innovation Act of 2009 (“BPCIA”), enacted on March 23, 2010, as part of the PatientProtection and Affordable Care Act. The BPCIA established this abbreviated pathway under section 351(k) of the Public Health Service Act (“PHSA”).Subsequent to the enactment of the BPCIA, the FDA issued draft guidance regarding the demonstration of biosimilarity and interchangeability as well as thesubmission and review of biosimilar applications. Moreover, market acceptance of biosimilar products in the U.S. is unclear. Numerous states are consideringor have already enacted laws that regulate or restrict the substitution by state pharmacies of biosimilars for originator products already licensed by the FDA.Market success of biosimilar products will depend on demonstrating to patients, physicians, payors and relevant authorities that such products are similar inquality, safety and efficacy as compared to the reference product.We will continue to analyze and incorporate into our biosimilar development plans any final regulations issued by the FDA, pharmacy substitutionpolicies enacted by state governments and other applicable requirements established by relevant authorities. The costs of development and approval, alongwith the probability of success for our biosimilar product candidates, will be dependent upon the application of any laws and regulations issued by therelevant regulatory authorities.Biosimilar products may also be subject to extensive originator-controlled patent portfolios and patent infringement litigation, which may delay andcould prevent the commercial launch of a product. Moreover, the BPCIA prohibits the FDA from accepting an application for a biosimilar candidate to areference product within four years of the reference product’s licensure by the FDA. In addition, the BPCIA provides innovative biologics with 12 years ofexclusivity from the date of their licensure, during which time the FDA cannot approve any application for a biosimilar candidate to the reference product.The BPCIA is complex and continues to be interpreted and implemented by the FDA. As a result, its ultimate impact, implementation and meaning areevolving and remain subject to significant uncertainty. Future implementation decisions by the FDA could result in delays in the development orcommercialization of our product candidates or increased costs to assure regulatory compliance and could adversely affect our operating results by restrictingor significantly delaying our ability to market new biosimilar products. Moreover, the Trump administration has taken several executive actions, includingthe issuance of a number of Executive Orders, that could impose significant burdens on, or otherwise materially delay, the FDA’s ability to engage in routineregulatory and oversight activities such as implementing statutes through rulemaking, issuance of guidance, and review and approval of marketingapplications. It is difficult to predict how these Executive Orders will be interpreted and implemented, and the extent to which they will impact the FDA’sability to continue implementing the BPCIA and engage in its other regulatory authorities under the FDCA. If these executive actions impose restrictions onthe FDA’s ability to engage in oversight and implementation activities in the normal course, our business may be negatively impacted.Regulatory Framework for Biosimilars Outside the U.S.In 2004, the European Parliament issued legislation allowing the approval of biosimilar therapeutics. Since then, the European Commission hasgranted marketing authorizations for more than 20 biosimilars pursuant to a set of general and product class-specific guidelines for biosimilar approvalsissued over the past few years. Because of their extensive experience in the review and approval of biosimilars, Europe has more guidelines for these productsthan the FDA, including data requirements needed to support approval.Under current E.U. regulations, an application for regulatory approval of a biosimilar drug cannot be submitted in the E.U. until expiration of an eight-year data exclusivity period for the reference (originator) product, measured from the date of the reference product’s initial marketing authorization.Furthermore, once approved, the biosimilar cannot be marketed until expiration of a ten-year period following the initial marketing authorization of thereference product, such ten-year period being extendible to 11 years if the reference product received approval of an additional therapeutic indication, withinthe first eight years following its initial marketing authorization, representing a significant clinical benefit in comparison with existing therapies. However,we understand that reference products approved prior to November 20, 2005 (which would include, for example, Enbrel, Humira and Neulasta, approved inthe E.U. on March 2, 2000, August 9, 2003 and August 22, 2002, respectively) are subject to a ten-year period of data exclusivity. While the data exclusivityperiods for Enbrel, Humira and Neulasta have now expired in Europe, these reference products are presently still subject to unexpired patents and suchpatents may or may not be susceptible to challenges to their validity and enforceability.In Europe, the approval of a biosimilar for marketing is based on an opinion issued by the EMA and a decision issued by the European Commission.Therefore, the marketing approval will cover the entire EEA. However, substitution of a biosimilar for the originator is a decision that is made at the nationallevel. Additionally, a number of countries do not permit the automatic substitution of biosimilars for the originator product. Therefore, even if we obtainmarketing approval for the entire EEA, we may not receive substitution in one or more European nations, thereby restricting our ability to market ourproducts in those jurisdictions.31 Other regions, including Canada, Japan and Korea, also have their own legislation outlining a regulatory pathway for the approval of biosimilars. Insome cases other countries have either adopted European guidance (Singapore and Malaysia) or are following guidance issued by the World HealthOrganization (Cuba and Brazil). While there is overlap in the regulatory requirements across regions, there are also some areas of non-overlap. Additionally,we cannot predict whether countries that we may wish to market in, which do not yet have an established or tested regulatory framework could decide to issueregulations or guidance and/or adopt a more conservative viewpoint than other regions. Therefore, it is possible that even if we obtain agreement from onehealth authority to an accelerated or optimized development plan, we will need to defer to the most conservative view to ensure global harmonization of thedevelopment plan. Also, for regions where regulatory authorities do not yet have sufficient experience in the review and approval of a biosimilar product,these authorities may rely on the approval from another region (e.g., the U.S. or the E.U.), which could delay our approval in that region. Finally, it is possiblethat some countries will not approve a biosimilar without clinical data from their population and/or may require that the biosimilar product be manufacturedwithin their region.If other biosimilars of pegfilgrastim (Neulasta), adalimumab (Humira) or etanercept (Enbrel) are approved and successfully commercialized before ourproduct candidates for these originator products (CHS-1701, CHS-1420 or CHS-0214, respectively), our business would suffer.We expect other companies to seek approval to manufacture and market biosimilar versions of Neulasta, Humira or Enbrel. If other biosimilars ofNeulasta, Humira or Enbrel are approved and successfully commercialized before CHS-1701, CHS-1420 or CHS-0214, respectively, we may never achievemeaningful market share for these products, our revenue would be reduced and, as a result, our business, prospects and financial condition could suffer.If other biosimilars of pegfilgrastim (Neulasta), adalimumab (Humira) or etanercept (Enbrel) are determined to be interchangeable and our biosimilarscandidates for these originator products are not, our business would suffer.The FDA or other relevant regulatory authorities may determine that a proposed biosimilar product is “interchangeable” with a reference product,meaning that the biosimilar product may be substituted for the reference product without the intervention of the health care provider who prescribed thereference product, if the application includes sufficient information to show that the product is biosimilar to the reference product and that it can be expectedto produce the same clinical result as the reference product in any given patient. If the biosimilar product may be administered more than once to a patient,the applicant must demonstrate that the risk in terms of safety or diminished efficacy of alternating or switching between the biosimilar product candidateand the reference product is not greater than the risk of using the reference product without such alternation or switch. To make a final determination ofinterchangeability, regulatory authorities may require additional confirmatory information beyond what we plan to initially submit in our applications forapproval, such as more in-depth analytical characterization, animal testing or further clinical studies. Provision of sufficient information for approval mayprove difficult and expensive.We cannot predict whether any of our biosimilar product candidates will meet regulatory authority requirements for approval not only as a biosimilarproduct but also as an interchangeable product in any jurisdiction. Furthermore, legislation governing interchangeability could differ by jurisdiction on astate or national level worldwide.The concept of “interchangeability” is important because, in the U.S. for example, the first biosimilar determined to be interchangeable with aparticular reference, or originator, product for any condition of use is eligible for a period of market exclusivity that delays a FDA determination that a secondor subsequent biosimilar product is interchangeable with that originator product for any condition of use until the earlier of: (1) one year after the firstcommercial marketing of the first interchangeable product; (2) 18 months after resolution of a patent infringement suit instituted under 42 U.S.C. § 262(l)(6)against the applicant that submitted the application for the first interchangeable product, based on a final court decision regarding all of the patents in thelitigation or dismissal of the litigation with or without prejudice; (3) 42 months after approval of the first interchangeable product, if a patent infringementsuit instituted under 42 U.S.C. § 262(l)(6) against the applicant that submitted the application for the first interchangeable product is still ongoing; or (4) 18months after approval of the first interchangeable product if the applicant that submitted the application for the first interchangeable product has not beensued under 42 U.S.C. § 262(l)(6). Thus, a determination that another company’s product is interchangeable with the originator biologic before we obtainapproval of our corresponding biosimilar product candidates may delay the potential determination that our products are interchangeable with the originatorproduct, which could materially adversely affect our results of operations and delay, prevent or limit our ability to generate revenue.Failure to obtain regulatory approval in any targeted regulatory jurisdiction would prevent us from marketing our products to a larger patient populationand reduce our commercial opportunities.We have not initiated marketing efforts in any regulatory jurisdiction. Subject to product approvals and relevant patent expirations, we intend tomarket our biosimilar products in the U.S. and Europe on our own or with future collaboration partners. We entered into a distribution agreement with ourlicensee Orox for the commercialization of biosimilar versions of etanercept (Enbrel), rituximab (Rituxan), adalimumab (Humira) and pegfilgrastim (Neulasta)in certain Caribbean and Latin American countries. If we obtain regulatory approval for our pegfilgrastim (Neulasta) biosimilar product, CHS-1701, and anyfuture oncology biosimilar candidates, we intend to market such biosimilar product candidates in the U.S. and may seek to partner commercially all oncologybiosimilars outside the U.S. We intend to find favorable strategic commercialization partners or retain rights for some or all of our immunology (anti-TNF)biosimilar candidates.32 In order to market our products in the E.U., the U.S. and other jurisdictions, we and our collaboration partners must obtain separate regulatoryapprovals and comply with numerous and varying regulatory requirements. The EMA is responsible for the centralized procedure for the regulation andapproval of human medicines. This procedure results in a single marketing authorization that is valid in all E.U. countries, as well as in Iceland, Liechtensteinand Norway. The time required to obtain approval abroad may differ from that required to obtain FDA approval. The foreign regulatory approval process mayinclude all of the risks associated with obtaining FDA approval and we may not obtain foreign regulatory approvals on a timely basis, if at all. Approval bythe FDA does not ensure approval by regulatory authorities in other countries, and approval by one foreign regulatory authority does not ensure approval byregulatory authorities in other foreign countries or by the FDA. We or our collaboration partners may not be able to file for regulatory approvals and may notreceive necessary approvals to commercialize our products within the U.S. or in any market outside the U.S. Failure to obtain these approvals wouldmaterially and adversely affect our business, financial condition and results of operations.CHS-1701, our pegfilgrastim (Neulasta) biosimilar candidate, may not be approved in a timely manner or at all by regulatory agencies. Even if CHS-1701is approved by the FDA or the EMA, we may be delayed in selling CHS-1701 due to direct or indirect legal challenges.We submitted a BLA for CHS-1701 in August 2016. In June 2017, the FDA issued a CRL in response to our BLA for CHS-1701. The letter identifiedcertain issues, including a request for a reanalysis of a subset of subject samples with a revised immunogenicity assay, and requests for certain additionalmanufacturing-related process information. Although we intend to address the issues identified in the CRL and currently plan to resubmit the BLA followinga meeting with the FDA that occurred in the middle of the first quarter of 2018, there is no guarantee that the FDA will accept our BLA resubmission. Even ifthe FDA accepts our resubmission of the BLA for CHS-1701, there is no guarantee that the FDA will conclude that the information in such a resubmissionwill be sufficient to support approval and we may fail to obtain regulatory approval in the U.S. for CHS-1701. We may also fail to obtain regulatory approvalfor CHS-1701 from the EMA in the E.U., where our MAA is currently under review. Additionally, certain factors beyond our control may impact thetimeliness of the regulatory reviews of our submissions or any applications for approval.Even if CHS-1701 receives marketing approval in the U.S. or the E.U., we may also be subject to direct legal challenges from Amgen, the manufacturerof Neulasta, and we could be delayed or prevented from launching CHS-1701 as a result of court orders or as a result of the time necessary to resolve suchchallenges. Similarly, we may be subject to indirect legal challenges in the U.S. as a result of new executive orders from the President of the U.S. or theamendment or reversal of various laws by the U.S. Congress that govern or impact the approval of biosimilars, including the PPACA and the BPCIA, which inaggregate may cause a delay in the approval or the commercial launch of CHS-1701.Even if we obtain regulatory approval for a product candidate, our products will remain subject to regulatory scrutiny.If our product candidates are approved, they will be subject to ongoing regulatory requirements for manufacturing, labeling, packaging, storage,advertising, promotion, sampling, record-keeping, conduct of post-marketing studies and submission of safety, efficacy and other post-market information,including both federal and state requirements in the U.S. and requirements of comparable foreign regulatory authorities.Manufacturers and manufacturers’ facilities are required to comply with extensive FDA, and comparable foreign regulatory authority, requirements,including ensuring that quality control and manufacturing procedures conform to current Good Manufacturing Practices (“cGMP”), regulations. As such, weand our contract manufacturers will be subject to continual review and inspections to assess compliance with cGMP and adherence to commitments made inany NDA, BLA or MAA. Accordingly, we and others with whom we work must continue to expend time, money and effort in all areas of regulatorycompliance, including manufacturing, production and quality control.Any regulatory approvals that we or our collaboration partners receive for our product candidates may be subject to limitations on the approvedindicated uses for which the product may be marketed or to the conditions of approval or may contain requirements for potentially costly additional clinicaltrials and surveillance to monitor the safety and efficacy of the product candidate. We will be required to report certain adverse events and productionproblems, if any, to the FDA and comparable foreign regulatory authorities. Any new legislation addressing drug safety issues could result in delays inproduct development or commercialization or increased costs to assure compliance. We will have to comply with requirements concerning advertising andpromotion for our products. Promotional communications with respect to prescription drugs are subject to a variety of legal and regulatory restrictions andmust be consistent with the information in the product’s approved label. As such, we may not promote our products for indications or uses for which they donot have approval. If our product candidates are approved, we must submit new or supplemental applications and obtain approval for certain changes to theapproved products, product labeling or manufacturing process. We or our collaboration partners could also be asked to conduct post-marketing clinicalstudies to verify the safety and efficacy of our products in general or in specific patient subsets. If original marketing approval is obtained via an acceleratedbiosimilar approval pathway, we could be required to conduct a successful post-marketing clinical study to confirm clinical benefit for our products. Anunsuccessful post-marketing study or failure to complete such a study could result in the withdrawal of marketing approval.33 If a regulatory agency discovers previously unknown problems with a product, such as adverse events of unanticipated severity or frequency orproblems with the facility where the product is manufactured or disagrees with the promotion, marketing or labeling of a product, such regulatory agencymay impose restrictions on that product or us, including requiring withdrawal of the product from the market. If we fail to comply with applicable regulatoryrequirements, a regulatory agency or enforcement authority may, among other possibilities: •issue warning letters; •impose civil or criminal penalties; •suspend or withdraw regulatory approval; •suspend any of our ongoing clinical studies; •refuse to approve pending applications or supplements to approved applications submitted by us; •impose restrictions on our operations, including closing our contract manufacturers’ facilities; or •seize or detain products or require a product recall.Any government investigation of alleged violations of law could require us to expend significant time and resources in response and could generatenegative publicity. Any failure to comply with ongoing regulatory requirements may significantly and adversely affect our ability to commercialize andgenerate revenue from our products. If regulatory sanctions are applied or if regulatory approval is withdrawn, the value of our company and our operatingresults will be adversely affected.Adverse events involving an originator product, or other biosimilars of such originator product, may negatively affect our business.In the event that use of an originator product, or other biosimilar for such originator product, results in unanticipated side effects or other adverseevents, it is likely that our biosimilar product candidate will be viewed comparably and may become subject to the same scrutiny and regulatory sanctions asthe originator product or other biosimilar, as applicable. Accordingly, we may become subject to regulatory supervisions, clinical holds, product recalls orother regulatory actions for matters outside of our control that affect the originator product, or other biosimilar, as applicable, if and until we are able todemonstrate to the satisfaction of our regulators that our biosimilar product candidate is not subject to the same issues leading to the regulatory action as theoriginator product or other biosimilar, as applicable.Risks Related to Our Ability to Hire Highly Qualified Personnel and Our Reliance on Third PartiesWe are highly dependent on the services of our key executives and personnel, including our President and Chief Executive Officer, Dennis M. Lanfear, andif we are not able to retain these members of our management or recruit additional management, clinical and scientific personnel, our business will suffer.We are highly dependent on the principal members of our management and scientific and technical staff. The loss of service of any of our managementor key scientific and technical staff could harm our business. In addition, we are dependent on our continued ability to attract, retain and motivate highlyqualified additional management, clinical and scientific personnel. If we are not able to retain our management, particularly our President and ChiefExecutive Officer, Mr. Lanfear, and to attract, on acceptable terms, additional qualified personnel necessary for the continued development of our business,we may not be able to sustain our operations or grow.Our future performance will also depend, in part, on our ability to successfully integrate newly hired executive officers into our management team andour ability to develop an effective working relationship among senior management. Our failure to integrate these individuals and create effective workingrelationships among them and other members of management could result in inefficiencies in the development and commercialization of our productcandidates, harming future regulatory approvals, sales of our product candidates and our results of operations. Additionally, we do not currently maintain“key person” life insurance on the lives of our executives or any of our employees.We will need to expand and effectively manage our managerial, scientific, operational, financial, commercial and other resources in order tosuccessfully pursue our clinical development and commercialization efforts. Our success also depends on our continued ability to attract, retain and motivatehighly qualified management and scientific personnel. We may not be able to attract or retain qualified management and scientific and clinical personnel inthe future due to the intense competition for qualified personnel among biotechnology, pharmaceutical and other businesses, particularly in the SanFrancisco Bay Area. If we are not able to attract, retain and motivate necessary personnel to accomplish our business objectives, we may experienceconstraints that will significantly impede the achievement of our development objectives, our ability to raise additional capital and our ability to implementour business strategy.We will need to expand our organization and we may experience difficulties in managing this growth, which could disrupt our operations.As of December 31, 2017, we had 122 employees. As our development and commercialization plans and strategies develop, we expect to needadditional managerial, operational, sales, marketing, financial, legal and other resources. Our management may need to divert a disproportionate amount ofits attention away from our day-to-day activities and devote a substantial amount of time to managing these34 growth activities. We may not be able to effectively manage the expansion of our operations, which may result in weaknesses in our infrastructure,operational mistakes, loss of business opportunities, loss of employees and reduced productivity among remaining employees. Our expected growth couldrequire significant capital expenditures and may divert financial resources from other projects, such as the development of our current and potential futureproduct candidates. If our management is unable to effectively manage our growth, our expenses may increase more than expected, our ability to generateand/or grow revenue could be reduced and we may not be able to implement our business strategy. Our future financial performance and our ability tocommercialize product candidates and compete effectively will depend, in part, on our ability to effectively manage any future growth.We rely on third parties to conduct our nonclinical and clinical studies and perform other tasks for us. If these third parties do not successfully carry outtheir contractual duties, meet expected deadlines or comply with regulatory requirements, we may not be able to obtain regulatory approval for orcommercialize our product candidates and our business could be substantially harmed.We have relied upon and plan to continue to rely upon third-party CROs to monitor and manage data for our ongoing nonclinical and clinicalprograms. We rely on these parties for execution of our nonclinical and clinical studies and control only certain aspects of their activities. Nevertheless, weare responsible for ensuring that each of our studies is conducted in accordance with the applicable protocol, legal, regulatory and scientific standards andour reliance on the CROs does not relieve us of our regulatory responsibilities. We and our CROs and other vendors are required to comply with cGMP,current good clinical practices (“cGCP”), and Good Laboratory Practices (“GLP”), which are regulations and guidelines enforced by the FDA, the CompetentAuthorities of the Member States of the EEA and comparable foreign regulatory authorities for all of our product candidates in clinical development.Regulatory authorities enforce these regulations through periodic inspections of study sponsors, principal investigators, study sites and other contractors. Ifwe, any of our CROs, service providers or investigators fail to comply with applicable regulations or cGCPs, the data generated in our nonclinical andclinical studies may be deemed unreliable and the FDA, EMA or comparable foreign regulatory authorities may require us to perform additional nonclinicaland clinical studies before approving our marketing applications. We cannot assure you that upon inspection by a given regulatory authority, suchregulatory authority will determine that any of our clinical studies comply with cGCP regulations. In addition, our clinical studies must be conducted withproduct generated under cGMP regulations. Failure to comply by any of the participating parties or ourselves with these regulations may require us to repeatclinical studies, which would delay the regulatory approval process. Moreover, our business may be implicated if our CRO or any other participating partiesviolate federal or state fraud and abuse or false claims laws and regulations or healthcare privacy and security laws.If any of our relationships with these third-party CROs terminate, we may not be able to enter into arrangements with alternative CROs or do so oncommercially reasonable terms. In addition, our CROs are not our employees, and except for remedies available to us under our agreements with such CROs,we cannot control whether or not they devote sufficient time and resources to our on-going nonclinical and clinical programs. If CROs do not successfullycarry out their contractual duties or obligations or meet expected deadlines, if they need to be replaced or if the quality or accuracy of the data they obtain iscompromised due to the failure to adhere to our protocols, regulatory requirements or for other reasons, our clinical studies may be extended, delayed orterminated and we may not be able to obtain regulatory approval for or successfully commercialize our product candidates. CROs may also generate highercosts than anticipated. As a result, our results of operations and the commercial prospects for our product candidates would be harmed, our costs couldincrease and our ability to generate revenue could be delayed.Switching or adding additional CROs involves additional cost and requires management time and focus. In addition, a transition period is necessarywhen a new CRO commences work, which can materially impact our ability to meet our desired clinical development timelines. Though we strive to carefullymanage our relationships with our CROs, there can be no assurance that we will not encounter similar challenges or delays in the future or that these delays orchallenges will not have a material adverse impact on our business, prospects and financial condition.We rely on third parties, and in some cases a single third party, to manufacture nonclinical, clinical and commercial drug supplies of our productcandidates and to store critical components of our product candidates for us. Our business could be harmed if those third parties fail to provide us withsufficient quantities of product candidates or fail to do so at acceptable quality levels or prices.We do not currently have the infrastructure or capability internally to manufacture supplies of our product candidates for use in our nonclinical andclinical studies, and we lack the resources and the capability to manufacture any of our product candidates on a clinical or commercial scale. We rely on thirdparty manufacturers to manufacture and supply us with our product candidates for our preclinical and clinical studies as well as to establish commercialsupplies of our product candidates. Successfully transferring complicated manufacturing techniques to contract manufacturing organizations and scaling upthese techniques for commercial quantities is time consuming and we may not be able to achieve such transfer or do so in a timely manner. Moreover, theavailability of contract manufacturing services for protein-based therapeutics is highly variable and there are periods of relatively abundant capacityalternating with periods in which there is little available capacity. If our need for contract manufacturing services increases during a period of industry-wideproduction capacity shortage, we may not be able to produce our product candidates on a timely basis or on commercially viable terms. Although we willplan accordingly and generally do not begin a clinical study unless we believe we have a sufficient supply of a product candidate to complete such study,any significant delay or discontinuation in the supply of a product candidate for an ongoing clinical study due to the need to replace a third-partymanufacturer could considerably delay completion of our clinical studies, product testing and potential regulatory approval of our product candidates, whichcould harm our business and results of operations.35 Reliance on third-party manufacturers entails additional risks, including reliance on the third party for regulatory compliance and quality assurance,the possible breach of the manufacturing agreement by the third party and the possible termination or nonrenewal of the agreement by the third party at atime that is costly or inconvenient for us. In addition, third party manufacturers may not be able to comply with cGMP or similar regulatory requirementsoutside the U.S. Our failure or the failure of our third party manufacturers to comply with applicable regulations could result in sanctions being imposed onus, including fines, injunctions, civil penalties, delays, suspension or withdrawal of approvals, license revocation, seizures or recalls of products, operatingrestrictions and criminal prosecutions, any of which could significantly and adversely affect supplies of our product candidates or any other productcandidates or products that we may develop. Any failure or refusal to supply the components for our product candidates that we may develop could delay,prevent or impair our clinical development or commercialization efforts. If our contract manufacturers were to breach or terminate their manufacturingarrangements with us, the development or commercialization of the affected products or product candidates could be delayed, which could have an adverseeffect on our business. Any change in our manufacturers could be costly because the commercial terms of any new arrangement could be less favorable andbecause the expenses relating to the transfer of necessary technology and processes could be significant.If any of our product candidates are approved, in order to produce the quantities necessary to meet anticipated market demand, any contractmanufacturer that we engage may need to increase manufacturing capacity. If we are unable to build and stock our product candidates in sufficient quantitiesto meet the requirements for the launch of these candidates or to meet future demand, our revenue and gross margins could be adversely affected. Althoughwe believe that we will not have any material supply issues, we cannot be certain that we will be able to obtain long-term supply arrangements for ourproduct candidates or materials used to produce them on acceptable terms, if at all. If we are unable to arrange for third-party manufacturing, or to do so oncommercially reasonable terms, we may not be able to complete development of our product candidates or market them.We are dependent on Orox for the commercialization of our biosimilar product candidates in certain markets and we intend to seek additionalcommercialization partners for major markets, and the failure to commercialize in those markets could have a material adverse effect on our business andoperating results.Our exclusive licensee, Orox, is responsible for commercialization of certain of our products, including CHS-1701, CHS-1420 and CHS-0214, incertain Caribbean and Latin American countries (excluding Brazil, and in the case of CHS-1701, also excluding Argentina). We intend to seekcommercialization partners for all products in Europe and other jurisdictions outside the U.S. (excluding certain Caribbean and Latin American countries).Our license with Orox, or other future license or collaboration agreements, may not be successful. Factors that may affect the success of our licenses andcollaborations include, but are not limited to, the following: •our existing and potential licensees and collaboration partners may fail to exercise commercially reasonable efforts to market and sell ourproducts in their respective licensed jurisdictions or they may be ineffective in doing so; •our existing and potential licensees and collaboration partners may incur financial, legal or other difficulties that force them to limit or reducetheir participation in our joint projects; •our existing and potential licensees and collaboration partners may terminate their licenses or collaborations with us, which could make itdifficult for us to attract new partners and/or adversely affect perception of us in the business and financial communities; and •our existing and potential licensees and collaboration partners may choose to pursue alternative, higher priority programs, which could affecttheir commitment to us.Moreover, any disputes with our licensees and collaboration partners will substantially divert the attention of our senior management from otherbusiness activities and will require us to incur substantial costs associated with litigation or arbitration proceedings. If we cannot maintain successful licenseand collaboration arrangements, our business, financial condition and operating results may be adversely affected.We are subject to a multitude of manufacturing risks. Any adverse developments affecting the manufacturing operations of our biosimilar productcandidates could substantially increase our costs and limit supply for our product candidates.The process of manufacturing our product candidates is complex, highly regulated and subject to several risks, including but not limited to: •product loss due to contamination, equipment failure or improper installation or operation of equipment or vendor or operator error; and •equipment failures, labor shortages, natural disasters, power failures and numerous other factors associated with the manufacturing facilities inwhich our product candidates are produced.Even minor deviations from normal manufacturing processes for any of our product candidates could result in reduced production yields, productdefects and other supply disruptions. For example, we have experienced failures with respect to the manufacturing of certain lots of each of our productcandidates resulting in delays prior to our taking corrective action. Additionally, if microbial, viral or other contaminations are discovered in our productcandidates or in the manufacturing facilities in which our product candidates are made, such manufacturing facilities may need to be closed for an extendedperiod of time to investigate and remedy the contamination.36 Any adverse developments affecting manufacturing operations for our product candidates may result in shipment delays, inventory shortages, lotfailures, withdrawals or recalls or other interruptions in the supply of our product candidates. We may also have to take inventory write-offs and incur othercharges and expenses for product candidates that fail to meet specifications, undertake costly remediation efforts or seek costlier manufacturing alternatives.We currently engage single suppliers for manufacture, clinical trial services, formulation development and product testing of our product candidates. Theloss of any of these suppliers or vendors could materially and adversely affect our business.For each of our lead products, CHS-1701, CHS-1420 and CHS-0214, we currently engage a distinct vendor or service provider for each of the principalactivities supporting our manufacture and development of these lead products, such as manufacture of the biological substance present in each of theproducts, manufacture of the final filled and finished presentation of these products, as well as laboratory testing, formulation development and clinicaltesting of these products. For example, in December 2015, we entered into a strategic manufacturing agreement with KBI Biopharma, Inc. for long-termcommercial manufacturing of CHS-1701. Because we currently have not engaged back up suppliers or vendors for these single-sourced services, andalthough we believe that there are alternate sources that could fulfill these activities, we cannot assure you that identifying and establishing relationshipswith alternate suppliers and vendors would not result in significant delay in the development of our product candidates. Additionally, we may not be able toenter into arrangements with alternative service providers on commercially reasonable terms or at all. A delay in the development of our product candidates,or having to enter into a new agreement with a different third party on less favorable terms than we have with our current suppliers, could have a materialadverse impact on our business.We and our collaboration partners and contract manufacturers are subject to significant regulation with respect to manufacturing our product candidates.The manufacturing facilities on which we rely may not continue to meet regulatory requirements or may not be able to meet supply demands.All entities involved in the preparation of therapeutics for clinical studies or commercial sale, including our existing contract manufacturers for ourproduct candidates, are subject to extensive regulation. Components of a finished therapeutic product approved for commercial sale or used in late-stageclinical studies must be manufactured in accordance with cGMP. These regulations govern manufacturing processes and procedures (including recordkeeping) and the implementation and operation of quality systems to control and assure the quality of investigational products and products approved forsale. Poor control of production processes can lead to the introduction of contaminants or to inadvertent changes in the properties or stability of our productcandidates that may not be detectable in final product testing. We, our collaboration partners or our contract manufacturers must supply all necessarydocumentation in support of a BLA or MAA on a timely basis and must adhere to GLP and cGMP regulations enforced by the FDA and other regulatoryagencies through their facilities inspection program. Some of our contract manufacturers may have never produced a commercially approved pharmaceuticalproduct and therefore have not obtained the requisite regulatory authority approvals to do so. The facilities and quality systems of some or all of ourcollaboration partners and third-party contractors must pass a pre-approval inspection for compliance with the applicable regulations as a condition ofregulatory approval of our product candidates or any of our other potential products. In addition, the regulatory authorities may, at any time, audit or inspecta manufacturing facility involved with the preparation of our product candidates or our other potential products or the associated quality systems forcompliance with the regulations applicable to the activities being conducted. For example, a FDA inspection in the fourth quarter of 2016 of KBI Biopharma,our contract manufacturer for CHS-1701 bulk drug substance, resulted in various form 483 observations. KBI Biopharma submitted corrective actions to theFDA. The FDA completed its review and has stated that the inspection is now closed. Although we oversee the contract manufacturers, we cannot control themanufacturing process of, and are completely dependent on, our contract manufacturing partners for compliance with the regulatory requirements. If thesefacilities do not pass a pre-approval plant inspection, regulatory approval of the products may not be granted or may be substantially delayed until anyviolations are corrected to the satisfaction of the regulatory authority, if ever.The regulatory authorities also may, at any time following approval of a product for sale, audit the manufacturing facilities of our collaborationpartners and third-party contractors. If any such inspection or audit identifies a failure to comply with applicable regulations or if a violation of our productspecifications or applicable regulations occurs independent of such an inspection or audit, we or the relevant regulatory authority may require remedialmeasures that may be costly and/or time consuming for us or a third party to implement and that may include the temporary or permanent suspension of aclinical study or commercial sales or the temporary or permanent closure of a facility. Any such remedial measures imposed upon us or third parties withwhom we contract could materially harm our business.If we, our collaboration partners or any of our third-party manufacturers fail to maintain regulatory compliance, the FDA or other applicable regulatoryauthority can impose regulatory sanctions including, among other things, refusal to approve a pending application for a new product candidate, withdrawalof an approval or suspension of production. As a result, our business, financial condition and results of operations may be materially harmed.Additionally, if supply from one approved manufacturer is interrupted, an alternative manufacturer would need to be qualified through a BLAsupplement or MAA variation or equivalent foreign regulatory filing, 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.37 These factors could cause us to incur additional costs and could cause the delay or termination of clinical studies, regulatory submissions, requiredapprovals or commercialization of our product candidates. Furthermore, if our suppliers fail to meet contractual requirements and we are unable to secure oneor more replacement suppliers capable of production at a substantially equivalent cost, our clinical studies may be delayed or we could lose potentialrevenue.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 develop and manufacture our product candidates, we must, at times, share trade secrets with them. We seek toprotect our proprietary technology in part by entering into confidentiality agreements and, if applicable, material transfer agreements, collaborative researchagreements, consulting agreements or other similar agreements with our collaboration partners, advisors, employees and consultants prior to beginningresearch or disclosing proprietary information. These agreements typically limit the rights of the third parties to use or disclose our confidential information,such as trade secrets. Despite the contractual provisions employed when working with third parties, the need to share trade secrets and other confidentialinformation increases the risk that such trade secrets become known by our competitors, are inadvertently incorporated into the technology of others or aredisclosed or used in violation of these agreements. Given that our proprietary position is based, in part, on our know-how and trade secrets, a competitor’sdiscovery of our trade secrets or other unauthorized use or disclosure would impair our competitive position and may have a material adverse effect on ourbusiness.Risks Related to Commercialization of Our Product CandidatesOur biosimilar product candidates, if approved, will face significant competition from the reference products and from other pharmaceuticals approvedfor the same indication as the originator products. Our failure to effectively compete may prevent us from achieving significant market penetration andexpansion.We expect to enter highly competitive pharmaceutical markets. Successful competitors in the pharmaceutical market have demonstrated the ability toeffectively discover, obtain patents, develop, test and obtain regulatory approvals for products, as well as an ability to effectively commercialize, market andpromote approved products. Numerous companies, universities and other research institutions are engaged in developing, patenting, manufacturing andmarketing of products competitive with those that we are developing. Many of these potential competitors are large, experienced pharmaceutical companiesthat enjoy significant competitive advantages, such as substantially greater financial, research and development, manufacturing, personnel and marketingresources. These companies also have greater brand recognition and more experience in conducting preclinical testing and clinical trials of productcandidates and obtaining FDA and other regulatory approvals of products.If an improved version of an originator product, such as Neulasta, Humira or Enbrel, is developed or if the market for the originator product significantlydeclines, sales or potential sales of our biosimilar product candidates may suffer.Originator companies may develop improved versions of a reference product as part of a life cycle extension strategy and may obtain regulatoryapproval of the improved version under a new or supplemental BLA filed with the applicable regulatory authority. Should the originator company succeed inobtaining an approval of an improved biologic product, it may capture a significant share of the collective reference product market in the applicablejurisdiction and significantly reduce the market for the reference product and thereby the potential size of the market for our biosimilar product candidates. Inaddition, the improved product may be protected by additional patent rights that may subject our follow-on biosimilar to claims of infringement.Biologic reference products may also face competition as technological advances are made that may offer patients a more convenient form ofadministration or increased efficacy or as new products are introduced. As new products are approved that compete with the reference product to ourbiosimilar product candidates, sales of the reference originator product may be adversely impacted or rendered obsolete. If the market for the referenceproduct is impacted, we may lose significant market share or experience limited market potential for our approved biosimilar products or product candidates,and the value of our product pipeline could be negatively impacted. As a result of the above factors, our business, prospects and financial condition couldsuffer.If efforts by manufacturers of originator products to delay or limit the use of biosimilars are successful, our sales of biosimilar products may suffer.Many manufacturers of originator products have increasingly used legislative, regulatory and other means, such as litigation, to delay regulatoryapproval and to seek to restrict competition from manufacturers of biosimilars. These efforts may include or have included: •settling, or refusing to settle, patent lawsuits with biosimilar companies, resulting in such patents remaining an obstacle for biosimilarapproval; •submitting Citizen Petitions to request the FDA Commissioner to take administrative action with respect to prospective and submittedbiosimilar applications;38 •appealing denials of Citizen Petitions in U.S. federal district courts and seeking injunctive relief to reverse approval of biosimilar applications; •restricting access to reference brand products for equivalence and biosimilarity testing that interferes with timely biosimilar developmentplans; •attempting to influence potential market share by conducting medical education with physicians, payors, regulators and patients claiming thatbiosimilar products are too complex for biosimilar approval or are too dissimilar from originator products to be trusted as safe and effectivealternatives; •implementing payor market access tactics that benefit their brands at the expense of biosimilars; •seeking state law restrictions on the substitution of biosimilar products at the pharmacy without the intervention of a physician or throughother restrictive means such as excessive recordkeeping requirements or patient and physician notification; •seeking federal or state regulatory restrictions on the use of the same non-proprietary name as the reference brand product for a biosimilar orinterchangeable biologic; •seeking changes to the U.S. Pharmacopeia, an industry recognized compilation of drug and biologic standards; •obtaining new patents covering existing products or processes, which could extend patent exclusivity for a number of years or otherwise delaythe launch of biosimilars; and •influencing legislatures so that they attach special patent extension amendments to unrelated federal legislation.For example, in 2012, Abbott Laboratories filed a Citizen Petition with the FDA asking the agency to refrain from accepting biosimilar applicationsunder the BPCIA arguing that to approve such applications, without compensation to the originator, would constitute an unconstitutional taking of anoriginator company’s valuable trade secrets under the Fifth Amendment of the Constitution of the U.S. The FDA rejected Abbott Laboratories’ petition onSeptember 23, 2016. In addition, on April 21, 2017 Apotex Inc. and its subsidiary Apobiologix submitted a Citizen Petition to the FDA asking the agency torequire any biosimilar applicant seeking to file a BLA referencing Neulasta to conduct comparative clinical efficacy studies, including PK, PD, andimmunogenicity studies, in at least one intended patient population. The FDA dismissed this Citizen Petition in October 2017.We face intense competition and rapid technological change and the possibility that our competitors may develop therapies that are similar, moreadvanced or more effective than ours, which may adversely affect our financial condition and our ability to successfully commercialize our productcandidates.We have competitors both in the U.S. and internationally, including major multinational pharmaceutical companies, specialty pharmaceuticalcompanies and biotechnology companies. Some of the pharmaceutical and biotechnology companies we expect to compete with include, for example,Apotex Inc. (“Apotex”), Sandoz, Amgen, Pfizer Inc. (“Pfizer”), Boehringer Ingelheim GmbH (“Boehringer Ingelheim”), Teva Pharmaceutical Industries, Ltd.(“Teva”), and Samsung Bioepis, Ltd. (“Samsung Bioepis”), (a Merck/Biogen/Samsung biosimilar venture), Mylan Inc. (“Mylan”), Cinfa Biotech S.L., as wellas other smaller companies. We are currently aware that such competitors are engaged in the development of biosimilar product candidates to pegfilgrastim(Neulasta), adalimumab (Humira) and etanercept (Enbrel).For example, we understand that Sandoz and Apotex have each submitted a Neulasta (pegfilgrastim) biosimilar product candidate for market approvalin the U.S. and that Sandoz received a complete response letter from the FDA at the end of June 2016. We understand that Mylan submitted a Neulastabiosimilar candidate for market approval in the E.U. and in the U.S. and that Biocon Ltd., Mylan’s partner, received a complete response letter from the FDAin October 2017. Also in October 2017, Cinfa Biotech S.L. announced that the EMA accepted for review a marketing authorization application for itspegfilgrastim biosimilar candidate.Similarly, Pfizer, Boehringer Ingelheim, Amgen, Sandoz and Samsung Bioepis are examples of companies engaged in development of biosimilarproduct candidates for adalimumab (Humira). We understand Pfizer completed its Phase 3 program in 2017. Boehringer Ingelheim’s Humira biosimilar wasapproved in the U.S. in August 2017 and in the E.U. in October 2017, and that Samsung Bioepis’ Humira biosimilar was approved in the E.U. in August 2017.In addition, in September 2016, the FDA approved Amgen’s adalimumab biosimilar (Amjevita, adalimumab-atto) for multiple inflammatory diseases.On January 16, 2016, the European Commission (EC) approved Samsung Bioepis’ etanercept biosimilar (Benepali) for the treatment of rheumatoidarthritis, psoriatic arthritis, axial spondyloarthritis (ankylosing spondylitis and non-radiographic axial spondyloarthritis) and plaque psoriasis. In June andAugust 2016, the EMA and FDA, respectively, approved Sandoz’ etanercept biosimilar (Erelzi, etanercept-szzs) for multiple inflammatory diseases.Many of our competitors have substantially greater financial, technical and other resources, such as larger research and development staff andexperienced marketing and manufacturing organizations. Additional mergers and acquisitions in the pharmaceutical industry may result in even moreresources being concentrated in our competitors. As a result, these companies may39 obtain regulatory approval more rapidly than we are able to and may be more effective in selling and marketing their products. Smaller or early-stagecompanies may also prove to be significant competitors, particularly through collaborative arrangements with large, established companies. Our competitorsmay succeed in developing, acquiring or licensing on an exclusive basis, products that are more effective or less costly than any product candidate that wemay develop; they may also obtain patent protection that could block our products; and they may obtain regulatory approval, product commercializationand market penetration earlier than we do. Biosimilar product candidates developed by our competitors may render our potential product candidatesuneconomical, less desirable or obsolete, and we may not be successful in marketing our product candidates against competitors. Competitors may also assertin their marketing or medical education programs that their biosimilar products demonstrate a higher degree of biosimilarity to the originator products thando ours or other competitor’s biosimilar products, thereby seeking to influence health care practitioners to select their biosimilar products, versus ours orother competitors.We currently have a limited marketing and sales organization. If we are unable to establish full and complete sales and marketing capabilities injurisdictions for which we choose to retain commercialization rights or if we are unable to enter into agreements with third parties to market and sell ourproduct candidates, we may be unable to generate any revenue.We currently have no marketing or sales organization. Although our employees may have sold other biologic products in the past while employed atother companies, our products have not yet been approved for sale, and thus we as a company have no experience selling and marketing our productcandidates. To successfully commercialize any products that may result from our development programs, we will need to develop these capabilities, either onour own or with others. If our product candidates receive regulatory approval, we intend to establish a sales and marketing organization with technicalexpertise and supporting distribution capabilities to commercialize our product candidates in major markets where we may choose to retaincommercialization rights. Doing so will be expensive, difficult and time consuming. Any failure or delay in the development of our internal sales, marketingand distribution capabilities would adversely impact the commercialization of our products.Further, given our lack of prior experience in marketing and selling biopharmaceutical products, our initial estimate of the size of the required salesforce may be materially more or less than the size of the sales force actually required to effectively commercialize our product candidates. As such, we may berequired to hire substantially more sales representatives to adequately support the commercialization of our product candidates or we may incur excess costsas a result of hiring more sales representatives than necessary. With respect to certain geographical markets, we may enter into collaborations with otherentities to utilize their local marketing and distribution capabilities, but we may be unable to enter into such agreements on favorable terms, if at all. If ourfuture collaboration partners do not commit sufficient resources to commercialize our future products, if any, and we are unable to develop the necessarymarketing capabilities on our own, we will be unable to generate sufficient product revenue to sustain our business. We expect competition from companiessuch as Sandoz, Samsung Bioepis, Teva, Boehringer Ingelheim, Pfizer and Amgen that currently have extensive and well-funded marketing and salesoperations. Without an internal team or the support of a third party to perform marketing and sales functions, we may be unable to compete successfullyagainst these more established companies.We may need to enter into alliances with other companies that can provide capabilities and funds for the development and commercialization of ourproduct candidates. If we are unsuccessful in forming or maintaining these alliances on favorable terms, our business could be adversely affected.Because we have limited or no internal capabilities for late-stage product development, manufacturing, sales, marketing and distribution, we havefound it necessary to enter into alliances with other companies. For example, in 2012, we entered into a collaboration agreement with Daiichi Sankyo for thedevelopment and commercialization of CHS-0214 in Japan. In addition, in 2013, we entered into a collaboration agreement with Baxalta (now part of Shireplc) for the development and commercialization of CHS-0214 in Europe, Brazil and other jurisdictions outside the U.S. In June 2016 and July 2017, weregained development and commercial rights for CHS-0214 from Shire plc and Daiichi Sankyo, respectively. For commercialization of our biosimilar productcandidates in certain Caribbean and Latin American countries, we entered into an exclusive distribution arrangement with Orox in 2012.In the future, we may also find it necessary to form alliances or joint ventures with major pharmaceutical companies to jointly develop and/orcommercialize specific biosimilar product candidates. In such alliances, we would expect our collaboration partners to provide substantial capabilities inclinical development, manufacturing, regulatory affairs, sales and marketing. We may not be successful in entering into any such alliances. Even if we dosucceed in securing such alliances, we may not be able to maintain them if, for example, development or approval of a product candidate is delayed or salesof an approved product are disappointing. If we are unable to secure or maintain such alliances, we may not have the capabilities necessary to continue orcomplete development of our product candidates and bring them to market, which may have an adverse effect on our business.In addition to product development and commercialization capabilities, we may depend on our alliances with other companies to provide substantialadditional funding for development and potential commercialization of our product candidates. We may not be able to obtain funding on favorable termsfrom these alliances, and if we are not successful in doing so, we may not have sufficient funds to develop a particular product candidate internally or to bringproduct candidates to market. Failure to bring our product candidates to market will prevent us from generating sales revenue, and this may substantiallyharm our business. Furthermore, any delay in entering into these alliances could delay the development and commercialization of our product candidates,reduce their competitiveness even if they reach the market and harm our business and operating results.40 The commercial success of any current or future product candidate will depend upon the degree of market acceptance by physicians, patients, third-partypayors and others in the medical community.Even with the requisite approvals from the FDA and comparable foreign regulatory authorities, the commercial success of our product candidates willdepend in part on the medical community, patients and third-party payors accepting our product candidates as medically useful, cost-effective and safe. Anyproduct that we bring to the market may not gain market acceptance by physicians, patients, third-party payors and others in the medical community. Thedegree of market acceptance of any of our product candidates, if approved for commercial sale, will depend on a number of factors, including: •the safety and efficacy of the product as demonstrated in clinical studies and potential advantages over competing treatments; •the prevalence and severity of any side effects, including any limitations or warnings contained in a product’s approved labeling; •the clinical indications for which approval is granted; •the possibility that a competitor may achieve interchangeability and we may not; •relative convenience and ease of administration; •the extent to which our product may be similar to the originator product than competing biosimilar product candidates; •policies and practices governing the naming of biosimilar product candidates; •prevalence of the disease or condition for which the product is approved; •the cost of treatment, particularly in relation to competing treatments; •the willingness of the target patient population to try new therapies and of physicians to prescribe these therapies; •the strength of marketing and distribution support and timing of market introduction of competitive products; •the extent to which the product is approved for inclusion on formularies of hospitals and managed care organizations; •publicity concerning our products or competing products and treatments; •the extent to which third-party payors provide adequate third-party coverage and reimbursement for our product candidates, if approved; and •our ability to maintain compliance with regulatory requirements.Even if a potential product displays a favorable efficacy and safety profile in nonclinical and clinical studies, market acceptance of the product willnot be fully known until after it is launched and may be negatively affected by a potential poor safety experience and the track record of other biosimilarproduct candidates. Our efforts to educate the medical community and third-party payors on the benefits of the product candidates may require significantresources, may be under-resourced compared to large well-funded pharmaceutical entities and may never be successful. If our product candidates areapproved but fail to achieve an adequate level of acceptance by physicians, patients, third-party payors and others in the medical community, we will not beable to generate sufficient revenue to become or remain profitable.Policies and practices governing the naming of biosimilar product candidates are neither fully established nor fully harmonized and are subject to debateand change. Failure to achieve a non-proprietary name sufficiently close to the reference product or be competitively disadvantaged in this regard, couldadversely affect the commercial performance of our biosimilar product candidate.U.S. Adopted Name, and International Nonproprietary Names (“INN”), two important bodies involved in nonproprietary nomenclature, have no policyfor the naming of biosimilar product candidates, and products are named on a case-by-case basis. Non-glycosylated proteins can follow the approachestablished for small molecule generics, which is to retain the same non-proprietary name if it is synthesized by a different route provided the substance is thesame. Glycosylated proteins from different sources are given distinct names, as these proteins are expected to differ in their glycosylation profile. The sameapproach is valid for all other modifications to the protein that can occur in a cell after the cell has made the protein. A system currently under discussion atthe World Health Organization that would enable the clear definition of all Similar Biotherapeutic Proteins would include the INN of the reference product inthe first part of the name, and some form of biological qualifier that could uniquely identify the substance. Currently, the FDA and the EMA have finalauthority regarding names in the U.S. and the E.U. respectively, and it is unclear how they will handle nonproprietary nomenclature in the future. However, ifthey adopt policies requiring non-proprietary names that are distinct from the reference product or chose to assign a competing biosimilar product candidateto our product with a lower degree of nomenclature distinction from the reference product, payors, providers and patients may be more hesitant to use ourbiosimilar product candidate, believing the difference in nomenclature to be indicative of an important difference in quality of function from the referenceproduct or the competing biosimilar product candidate. If this were to occur, our business could be negatively affected.41 The third-party coverage and reimbursement status of newly-approved products is uncertain. Failure to obtain or maintain adequate coverage andreimbursement for new or current products could limit our ability to market those products and decrease our ability to generate revenue.Pricing, coverage and reimbursement of our biosimilar product candidates, if approved, may not be adequate to support our commercial infrastructure.Our per-patient prices may not be sufficient to recover our development and manufacturing costs and potentially achieve profitability. Accordingly, theavailability and adequacy of coverage and reimbursement by governmental and private payors are essential for most patients to be able to afford expensivetreatments such as ours, if approved. Sales of our product candidates will depend substantially, both domestically and abroad, on the extent to which thecosts of our product candidates will be paid for by health maintenance, managed care, pharmacy benefit and similar healthcare management organizations orreimbursed by government authorities, private health insurers and other third-party payors. If coverage and reimbursement are not available, or are availableonly to limited levels, we may not be able to successfully commercialize our product candidates. Even if coverage is provided, the approved reimbursementamount may not be adequate to allow us to establish or maintain pricing sufficient to realize a return on our investment.There is significant uncertainty related to third-party coverage and reimbursement of newly approved products. In the U.S., third-party payors,including private and governmental payors such as the Medicare and Medicaid programs, play an important role in determining the extent to which newdrugs and biologics will be covered and reimbursed. The Medicare program covers certain individuals aged 65 or older or those who are disabled or sufferingfrom end-stage renal disease. The Medicaid program, which varies from state to state, covers certain individuals and families who have limited financialmeans. The Medicare and Medicaid programs increasingly are used as models for how private payors and other governmental payors develop their coverageand reimbursement policies for drugs and biologics. It is difficult to predict at this time what third-party payors will decide with respect to the coverage andreimbursement for our biosimilar product candidates, if approved. In addition, in the U.S., no uniform policy of coverage and reimbursement for biologicsexists among third-party payors. Therefore, coverage and reimbursement for biologics can differ significantly from payor to payor. As a result, the process forobtaining favorable coverage determinations often is time-consuming and costly and may require us to provide scientific and clinical support for the use ofour products to each payor separately, with no assurance that coverage and adequate reimbursement will be obtained. For example, CMS issued a proposedMedicare Part B rule in the third quarter of 2015 on biosimilar payment and coding, which requires that multiple biosimilars to the same reference product begrouped and issued the same J-code for Medicare reimbursement purposes and that the payment amount for a billing code that describes a biosimilar is basedon the ASP of all biosimilar products that reference a common biological product’s license application. However, on November 2, 2017, CMS adopted a finalpolicy to no longer group biological products with a common reference product into the same billing code, effective January 1, 2018. If our product is notassigned a separate code or is issued a code that is not adequately reimbursed by third-party payors, then the cost of the relevant product may be absorbed byhealthcare providers or charged to patients. If this is the case, our expectations of the pricing we expect to achieve for such product and the related potentialrevenue, may be significantly diminished.Outside the U.S., pharmaceutical businesses are generally subject to extensive governmental price controls and other market regulations. We believethe increasing emphasis on cost-containment initiatives in Europe, Canada and other countries has and will continue to put pressure on the pricing and usageof our product candidates. In many countries, the prices of medical products are subject to varying price control mechanisms as part of national healthsystems. Other countries allow companies to fix their own prices for medical products, but monitor and control company profits. Additional foreign pricecontrols or other changes in pricing regulation could restrict the amount that we are able to charge for our product candidates. Accordingly, in marketsoutside the U.S., the reimbursement for our products may be reduced compared with the U.S. and may be insufficient to generate commercially reasonablerevenue and profits.Increasing efforts by governmental and third-party payors in the U.S. and abroad to control healthcare costs may cause such organizations to limitboth coverage and the level of reimbursement for new products approved and, as a result, they may not cover or provide adequate payment for our productcandidates. While cost containment practices generally benefit biosimilars, severe cost containment practices may adversely affect our product sales. Weexpect to experience pricing pressures in connection with the sale of any of our product candidates due to the trend toward managed healthcare, theincreasing influence of health maintenance organizations and additional legislative changes.Our biosimilar product candidates, if approved, could face price competition from other biosimilars of the same reference products for the sameindication. This price competition could exceed our capacity to respond, detrimentally affecting our market share and revenue as well as adverselyaffecting the overall financial health and attractiveness of the market for the biosimilar.We expect to enter highly competitive biosimilar markets. Successful competitors in the biosimilar market have the ability to effectively compete onprice through payors and their third-party administrators who exert downward pricing pressure. It is possible our biosimilar competitors’ compliance withprice discounting demands in exchange for market share could exceed our capacity to respond in kind and reduce market prices beyond our expectations.Such practices may limit our and our collaboration partners’ ability to increase market share and will also impact profitability.42 Risks Related to Intellectual PropertyIf we infringe or are alleged to infringe intellectual property rights of third parties, our business could be harmed. Third-party claims of intellectualproperty infringement may prevent or delay our development and commercialization efforts.Our commercial success depends in large part on avoiding infringement of the patents and proprietary rights of third parties. There have been manylawsuits and other proceedings involving patent and other intellectual property rights in the pharmaceutical industry, including patent infringement lawsuits,interferences, oppositions and reexamination proceedings before the USPTO and corresponding foreign patent offices. Numerous U.S. and foreign issuedpatents and pending patent applications, which are owned by third parties, exist in the fields in which we are developing product candidates. As thepharmaceutical 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.Our research, development and commercialization activities may infringe or otherwise violate or be claimed to infringe or otherwise violate patentsowned or controlled by other parties. The companies that originated the products for which we intend to introduce biosimilar versions, such as Amgen,AbbVie Inc. (“AbbVie”), and Genentech, as well as other competitors (including other companies developing biosimilars) have developed, and arecontinuing to develop, worldwide patent portfolios of varying sizes and breadth, many of which are in fields relating to our business, and it may not alwaysbe clear to industry participants, including us, which patents cover various types of products or methods of use.Third parties may assert that we are employing their proprietary technology without authorization. We are aware of third-party patents or patentapplications with claims, for example, to compositions, formulations, methods of manufacture or methods for treatment related to the use or manufacture ofour product candidates. While we have conducted freedom to operate analyses with respect to our lead product candidates CHS-1701, CHS-1420 and CHS-0214, as well as our pipeline candidates, we cannot guarantee that any of our analyses are complete and thorough, nor can we be sure that we have identifiedeach and every patent and pending application in the U.S. and abroad that is relevant or necessary to the commercialization of our product candidates.Moreover, because patent applications can take many years to issue, there may be currently pending patent applications that may later result in issued patentscovering our product candidates. With respect to products we are evaluating for inclusion in our future biosimilar product pipeline, our freedom to operateanalyses, including our research on the timing of potentially relevant patent expirations, are ongoing.There may also be patent applications that have been filed but not published and if such applications issue as patents, they could be asserted againstus. For example, in most cases, a patent filed today would not become known to industry participants for at least 18 months given patent rules applicable inmost jurisdictions, which do not require publication of patent applications until 18 months after filing. Moreover, some U.S. patents may issue without anyprior publication in cases where the patent applicant does not also make a foreign filing. We may also face claims from non-practicing entities that have norelevant product revenue and against whom our own patent portfolio may have no deterrent effect. In addition, coverage of patents is subject to interpretationby the courts, and the interpretation is not always uniform. If we are sued for patent infringement, we would need to demonstrate that our product candidates,products or methods either do not infringe the patent claims of the relevant patent or that the patent claims are invalid and/or unenforceable, and we may notbe able to do this. Proving that a patent is invalid or unenforceable is difficult. For example, in the U.S., proving invalidity requires a showing of clear andconvincing evidence to overcome the presumption of validity enjoyed by issued patents. Also in proceedings before courts in Europe, the burden of provinginvalidity of the patent usually rests on the party alleging invalidity. Even if we are successful in these proceedings, we may incur substantial costs and thetime and attention of our management and scientific personnel could be diverted in pursuing these proceedings, which could have a material adverse effecton us. In addition, we may not have sufficient resources to bring these actions to a successful conclusion.Third parties could bring claims against us that would cause us to incur substantial expenses and, if successful against us, could cause us to paysubstantial monetary damages. Further, if a patent infringement suit were brought against us, we could be forced to stop or delay research, development,manufacturing or sales of the product or product candidate that is the subject of the suit. Ultimately, we could be prevented from commercializing a productor be forced to cease some aspect of our business operations, if, as a result of actual or threatened patent infringement claims, we are unable to enter intolicenses on commercially acceptable terms or at all. If, as a result of patent infringement claims or to avoid potential claims, we choose or are required to seeklicenses from third parties, these licenses may not be available on acceptable terms or at all. Even if we are able to obtain a license, the license may obligateus to pay substantial license fees or royalties or both, and the rights granted to us might be nonexclusive, which could result in our competitors gainingaccess to the same intellectual property. Parties making claims against us may obtain injunctive or other equitable relief, which could effectively block ourability to further develop and commercialize one or more of our product candidates. Defense of these claims, regardless of their merit, would likely involvesubstantial litigation expense and would likely be a substantial diversion of employee resources from our business. In the event of a successful claim ofinfringement against us, we may, in addition to being blocked from the market, have to pay substantial monetary damages, including treble damages andattorneys’ fees for willful infringement, pay royalties, redesign our infringing products or obtain one or more licenses from third parties, which may beimpossible or require substantial time and monetary expenditure.43 On May 10, 2017, Amgen Inc. and Amgen Manufacturing Inc. filed an action against us in the U.S. District Court for the District of Delaware alleginginfringement of one or more claims of Amgen’s US patent 8,273,707 (the “ ‘707 patent”) under 35 U.S.C. § 271. The complaint seeks injunctive relief,monetary damages and attorney fees. On September 18, 2017, the court issued a scheduling order with a claim construction hearing set for June 25, 2018, anda trial date of September 16, 2019. On December 7, 2017, the U.S. Magistrate Judge issued under seal a Report and Recommendation to the District Courtrecommending that the District Court grant, with prejudice, the Company’s pending motion to dismiss Amgen’s complaint for failure to state a claimpursuant to Federal Rule of Civil Procedure 12(b)(6). The District Court issued a publicly available version of the Magistrate Judge’s Report andRecommendation on January 11, 2018. The Company expects the District Court to decide in the first half of 2018 whether to adopt the Magistrate Judge’srecommendation.In addition to infringement claims against us, we may become a party to other patent litigation and other proceedings, including interference, IPR,derivation or post-grant proceedings declared or granted by the USPTO and similar proceedings in foreign countries, regarding intellectual property rightswith respect to our current or future products. An unfavorable outcome in any such proceedings could require us to cease using the related technology or toattempt to license rights to it from the prevailing party or could cause us to lose valuable intellectual property rights. Our business could be harmed if theprevailing party does not offer us a license on commercially reasonable terms, if any license is offered at all. Litigation or other proceedings may fail and,even if successful, may result in substantial costs and distract our management and other employees. We may also become involved in disputes with othersregarding the ownership of intellectual property rights. For example, we jointly develop intellectual property with certain parties, and disagreements maytherefore arise as to the ownership of the intellectual property developed pursuant to these relationships. If we are unable to resolve these disputes, we couldlose valuable intellectual property rights.AbbVie holds numerous patents and patent applications related to Humira, including certain patents on which we have filed IPR petitions. Some ofAbbVie’s patents may be successfully challenged, while others may withstand challenge. AbbVie patents that we cannot avoid or successfully challenge willdelay or prevent our ability, or a collaborator’s ability, to launch a Humira biosimilar until expiration of such patents, or earlier if third parties are able tosuccessfully challenge such patents. For example, if we are unable to successfully avoid or challenge certain AbbVie formulation patents, we may be unableto launch a Humira biosimilar until such formulation patents reach their expected expiration in 2022, or earlier if such patents are successfully challenged bythird parties. Similarly, if we are unable to successfully avoid or challenge certain AbbVie indication/dosage patents, we may be unable to market a Humirabiosimilar directed to such indications prior to expiration, or earlier if such patents are successfully challenged by third parties.On November 9, 2015 and December 7, 2015, we filed IPR petitions in the U.S. Patent Office against three AbbVie patents: U.S. patents 8,889,135(Case No. IPR2016-00172, filed November 9, 2015) (or “ ‘135”); 9,017,680 (Case No. IPR2016-00188, filed December 7, 2015) (or “ ‘680”); and 9,073,987(Case No. IPR2016-00189, filed December 7, 2015) (or “ ‘987”), all of which generally concern a 40 mg biweekly subcutaneous dosing regimen for treatingrheumatoid arthritis (“RA”) with Humira® (Adalimumab). This treatment regimen is referenced in the approved FDA label for Humira. On May 16, 2017, thePTAB invalidated all claims of the ‘135 patent, and on June 9, 2017, it invalidated all claims of the ‘680 and ‘987 patents. On July 14, 2017, AbbVie filed aNotice of Appeal in the U.S. Court of Appeals for the Federal Circuit (“CAFC”) in the ‘135, ‘680 and ‘987 patents. AbbVie filed its appeal brief on November10, 2017, and a decision on the appeal is expected from the Federal Circuit in 2019. We further note that on July 6, 2017, in the two Boehringer Ingelheim‘135 IPRs, the PTAB issued Final Written Decisions invalidating all the claims of the ‘135 patent.On May 9, 2016, we filed a petition for IPR of AbbVie U.S. patent 9,114,166 (Case No. IPR2016-01018) (or “ ‘166”) entitled “Formulation of HumanAntibodies for Treating TNF-α Associated Disorders.” The ‘166 patent generally concerns an isotonic formulation of TNF-α IgG1 antibody at a proteinconcentration of 50 mg/ml and pH of 4.0 to 8.0. On November 7, 2016, the PTAB denied institution of our petition for IPR of the ‘166 patent. On December2, 2016, we filed a request with the PTAB for rehearing of our ‘166 IPR petition. The PTAB denied our request on February 2, 2017. If the ‘166 patent is notinvalidated either in petitions for IPR raised by others or in district court litigation, and we are not successful in developing a formulation that does notinfringe the ‘166 patent, or other potentially relevant patents of AbbVie, we may be precluded from marketing CHS-1420 until at least the expiration of the‘166 patent, which we understand to be in August 2022.On January 31, 2017, we filed four petitions for IPR (Case Nos. IPR2017-00822; IPR2017-00823; IPR2017-00826; and IPR2017-00827) againstAbbVie’s U.S. patent 9,085,619 (the “ ‘619 patent”) entitled “Anti-TNF Antibody Formulations.” Our four IPR petitions against the ‘619 patent addressescertain aspects of the patent claims directed to pharmaceutical formulations of adalimumab that do not comprise a buffering system. On March 2, 2017, weamended and refiled petitions IPR2017-00826 and IPR2017-00827 as Case Nos. IPR2017-01009 and IPR2017-01008. On September 7, 2017, the PTABdenied institution of all four of our petitions for IPR of the ‘619 patent.On August 4, 2017, we filed a petition for IPR against U.S. patent 8,163,522 (the “ ‘522 patent”). The ‘522 patent, controlled by Amgen, is generallydirected to a method for making etanercept, the pharmaceutically active component of Enbrel. On September 6, 2017, we filed a petition for IPR against U.S.patent 8,063,182, (the “ ‘182 patent”). The ‘182 patent, controlled by Amgen, is generally directed to the etanercept protein, the pharmaceutically activecomponent of Enbrel. We expect the PTAB to enter decisions on whether to institute these two IPRs by March 13, 2018 (for the ‘522 patent) and by March15, 2018 (for the ‘182 patent).IPR filings, including our IPR filings, are a matter of public record and can be viewed at the USPTO PTAB website.44 Third parties may submit applications for patent term extensions in the U.S. or other jurisdictions where similar extensions are available and/orSupplementary Protection Certificates in the E.U. states (including Switzerland) seeking to extend certain patent protection which, if approved, may interferewith or delay the launch of one or more of our biosimilar products.The cost to us of any patent litigation or other proceeding, even if resolved in our favor, could be substantial. Patent litigation and other proceedingsmay fail, and even if successful, may result in substantial costs and distract our management and other employees. The companies that originated theproducts for which we intend to introduce biosimilar versions, as well as other competitors (including other biosimilar companies) may be able to sustain thecosts of such litigation or proceedings more effectively than we can because of their substantially greater financial resources. Uncertainties resulting from theinitiation and continuation of patent litigation or other proceedings could impair our ability to compete in the marketplace.So called “submarine” patents may be granted to our competitors that may significantly alter our launch timing expectations, reduce our projected marketsize, cause us to modify our product or process or block us from the market altogether.The term “submarine” patent has been used in the pharmaceutical industry and in other industries to denote a patent issuing from an application thatwas not published, publically known or available prior to its grant. Submarine patents add substantial risk and uncertainty to our business. Submarine patentsmay issue to our competitors covering our biosimilar product candidates or our pipeline candidates and thereby cause significant market entry delay, defeatour ability to market our products or cause us to abandon development and/or commercialization of a molecule.Examples of submarine patents include Brockhaus, et al., U.S. patents 8,063,182 and 8,163,522 (controlled by Amgen), which are directed to thefusion protein in Enbrel. If these patents are not successfully challenged (such as in IPRs that may be instituted by the PTAB in response to our pending IPRpetitions, noted above), and licenses to them are not available to us, they will preclude our ability to introduce an etanercept (Enbrel) biosimilar productcandidate in the U.S. market until at least 2029.The issuance of one or more submarine patents may harm our business by causing substantial delays in our ability to introduce a biosimilar candidateinto the U.S. market.We may not identify relevant patents or may incorrectly interpret the relevance, scope or expiration of a patent, which might adversely affect our ability todevelop and market our products.We cannot guarantee that any of our patent searches or analyses, including but not limited to the identification of relevant patents, the scope of patentclaims or the expiration of relevant patents, are complete and thorough, nor can we be certain that we have identified each and every patent and pendingapplication in the U.S. and abroad that is relevant to or necessary for the commercialization of our product candidates in any jurisdiction.The scope of a patent claim is determined by an interpretation of the law, the written disclosure in a patent and the patent’s prosecution history. Ourinterpretation of the relevance or the scope of a patent or a pending application may be incorrect, which may negatively impact our ability to market ourproducts or pipeline molecules. We may incorrectly determine that our products are not covered by a third party patent.Many patents may cover a marketed product, including but not limited to the composition of the product, methods of use, formulations, cell lineconstructs, vectors, growth media, production processes and purification processes. The identification of all patents and their expiration dates relevant to theproduction and sale of an originator product is extraordinarily complex and requires sophisticated legal knowledge in the relevant jurisdiction. It may beimpossible to identify all patents in all jurisdictions relevant to a marketed product. Our determination of the expiration date of any patent in the U.S. orabroad that we consider relevant may be incorrect, which may negatively impact our ability to develop and market our products.Our failure to identify and correctly interpret relevant patents may negatively impact our ability to develop and market our products.We may be involved in lawsuits or IPR proceedings to protect or enforce our patents, which could be expensive, time consuming and unsuccessful.We may discover that competitors are infringing our issued patents. Expensive and time-consuming litigation may be required to abate suchinfringement. Although we are not currently involved in any litigation to enforce patents we control, if we or one of our collaboration partners were to initiatelegal proceedings against a third party to enforce a patent covering one of our product candidates, the defendant could counterclaim that the patent coveringour product candidate is invalid and/or unenforceable. In patent litigation in the U.S., defendant counterclaims alleging invalidity and/or unenforceabilityare commonplace. Grounds for a validity challenge could be an alleged failure to meet any of several statutory requirements, including but not limited tolack of novelty, obviousness or non-enablement. Grounds for an unenforceability assertion could include an allegation that someone involved in theprosecution of the patent withheld relevant or material information related to the patentability of the invention from the USPTO or made a misleadingstatement during prosecution. The outcome following legal assertions of invalidity and unenforceability is unpredictable.45 Interference proceedings provoked by third parties or brought by us or declared by the USPTO may be necessary to determine the priority ofinventions with respect to our patents or patent applications. An unfavorable outcome could require us to cease using the related technology or to attempt tolicense rights to it from the prevailing party. Our business could be harmed if we cannot obtain a license from the prevailing party on commerciallyreasonable terms. Third parties may request an IPR of our patents in the USPTO. An unfavorable decision may result in the revocation of our patent or alimitation to the scope of the claims of our patents. Our defense of litigation, interference or IPR proceedings may fail and, even if successful, may result insubstantial costs and distract our management and other employees. In addition, the uncertainties associated with litigation could have a material adverseeffect on our ability to raise the funds necessary to continue our clinical trials, continue our research programs, license necessary technology from thirdparties or enter into development partnerships that would help us bring our product candidates to market.Furthermore, because of the substantial amount of discovery required in connection with intellectual property litigation, there is a risk that some ofour confidential information could be compromised by disclosure during any litigation we initiate to enforce our patents. There could also be publicannouncements of the results of hearings, motions or other interim proceedings or developments. If securities analysts or investors perceive these results to benegative, it could have a material adverse effect on the price of our common stock.We may be subject to claims that our employees, consultants, or independent contractors have wrongfully used or disclosed confidential information ofthird parties or that our employees have wrongfully used or disclosed alleged trade secrets of their former employers.We employ individuals, retain independent contractors and consultants and members on our board of directors or scientific advisory board who werepreviously employed at universities or other pharmaceutical companies, including our competitors or potential competitors. For example, our ChiefExecutive Officer, Dennis M. Lanfear, and our Chief Technical Officer, Peter K. Watler, Ph.D., are former employees of Amgen. Our Chief Scientific Officer,Alan C. Herman, Ph.D., is a former employee of Amgen and Genentech. Mr. Lanfear and Drs. Watler and Herman were employed at Amgen during periodswhen Amgen’s operations included the development and commercialization of Neupogen, Neulasta and Enbrel. Our Chief Medical Officer, Barbara K. Finck,M.D., is a former employee of Immunex Corporation (“Immunex”) (the company that initially developed the drug Enbrel and was later acquired by Amgen).Dr. Finck was involved in the clinical development of etanercept (Enbrel) while at Immunex and is a named inventor on at least four U.S. patents assigned toAmgen directed to the use of etanercept (Enbrel) for the treatment of psoriasis and psoriatic arthritis. Senior members of our commercial team who will beresponsible for any launch of our Neulasta biosimilar formerly held positions at Amgen. Our board of directors and scientific advisory board include membersthat were former employees of Genentech, Amgen and Abbott Laboratories. Although we try to ensure that our employees, consultants and independentcontractors do not use the proprietary information or know-how of others in their work for us, we may be subject to claims that we or our employees orconsultants have inadvertently or otherwise used or disclosed intellectual property, including trade secrets or other proprietary information, of a formeremployer or other third parties. Litigation may be necessary to defend against these claims. If we fail in defending any such claims, in addition to payingmonetary damages, we may lose valuable intellectual property rights or personnel, which could adversely impact our business. Even if we are successful indefending against such claims, litigation could result in substantial costs and be a distraction to management and other employees.On March 3, 2017, Amgen Inc. and Amgen USA Inc. (collectively “Amgen”) filed an action against us, KBI Biopharma Inc., our employee Howard S.Weiser and Does 1-20 in the Superior Court of the State of California, County of Ventura. The complaint alleges that we engaged in unfair competition andimproperly solicited and hired certain former Amgen employees in order to acquire and access trade secrets and other confidential information belonging toAmgen. On June 1, 2017, Amgen filed a Second Amended Complaint, which alleges as to Coherus (i) unfair competition under California Business andProfessions Code Section 17200 et seq., (ii) misappropriation of trade secrets, (iii) aiding and abetting breach of duty of loyalty and (iv) tortious interferencewith contract. As to defendant Weiser, the Second Amended Complaint alleges (i) unfair competition under California Business and Professions Code Section17200 et seq., (ii) misappropriation of trade secrets, (iii) breach of contract, (iv) violation of Penal Code Section 502 and (v) breach of duty of loyalty. KBIBiopharma Inc. is not named as defendant in the Second Amended Complaint. The Second Amended Complaint seeks injunctive relief and monetarydamages. Although Amgen has indicated it intends to seek a preliminary injunction, no motion has been filed yet. The court has set a trial date of January 22,2019.If we are unable to obtain and maintain effective patent rights for our product candidates or any future product candidates, we may not be able to preventcompetitors from using technologies we consider important in our successful development and commercialization of our product candidates, resulting inloss of any potential competitive advantage our patents may have otherwise afforded us.While our principal focus in matters relating to intellectual property is to avoid infringing the valid and enforceable rights of third parties, we also relyupon a combination of patents, trade secret protection and confidentiality agreements to protect our own intellectual property related to our productcandidates and development programs. Our ability to enjoy any competitive advantages afforded by our own intellectual property depends in large part onour ability to obtain and maintain patents and other intellectual property protection in the U.S. and in other countries with respect to various proprietaryelements of our product candidates, such as, for example, our product formulations and processes for manufacturing our products and our ability to maintainand control the confidentiality of our trade secrets and confidential information critical to our business.46 We have sought to protect our proprietary position by filing patent applications in the U.S. and abroad related to our products that are important to ourbusiness. This process is expensive and time consuming, and we may not be able to file and prosecute all necessary or desirable patent applications at areasonable cost or in a timely manner. It is also possible that we will fail to identify patentable aspects of our research and development output before it is toolate to obtain patent protection. There is no guarantee that any patent application we file will result in an issued patent having claims that protect ourproducts. Additionally, while the basic requirements for patentability are similar across jurisdictions, each jurisdiction has its own specific requirements forpatentability. We cannot guarantee that we will obtain identical or similar patent protection covering our products in all jurisdictions where we file patentapplications.The patent positions of biopharmaceutical companies generally are highly uncertain and involve complex legal and factual questions. As a result, thepatent applications that we own or license may fail to result in issued patents with claims that cover our product candidates in the U.S. or in other foreigncountries for many reasons. There is no assurance that all potentially relevant prior art relating to our patents and patent applications has been found,considered or cited during patent prosecution, which can be used to invalidate a patent or prevent a patent from issuing from a pending patent application.Even if patents do successfully issue, and even if such patents cover our product candidates, third parties may challenge their validity, enforceability orscope, which may result in such patent claims being narrowed, found unenforceable or invalidated. Our patents and patent applications, even if they areunchallenged, may not adequately protect our intellectual property, provide exclusivity for our product candidates or prevent others from designing aroundour claims. Any of these outcomes could impair our ability to prevent competitors from using the technologies claimed in any patents issued to us, whichmay have an adverse impact on our business.In addition, changes to U.S. patent laws provide additional procedures for third parties to challenge the validity of issued patents based on patentapplications filed after March 15, 2013. If the breadth or strength of protection provided by the patents and patent applications we hold or pursue withrespect to our current or future product candidates is challenged, then it could threaten our ability to prevent competitive products using our proprietarytechnology. Further, because patent applications in the U.S. and most other countries are confidential for a period of time, typically for 18 months after filing,we cannot be certain that we were the first to either (i) file any patent application related to our product candidates or (ii) invent any of the inventions claimedin our patents or patent applications. Furthermore, for applications filed before March 16, 2013 or patents issuing from such applications, an interferenceproceeding can be provoked by a third party or instituted by the USPTO to determine who was the first to invent any of the subject matter covered by thepatent claims of our applications and patents. As of March 16, 2013, the U.S. transitioned to a “first-to-file” system for deciding which party should begranted a patent when two or more patent applications claiming the same invention are filed by different parties. A third party that files a patent applicationin the USPTO before we do, could therefore be awarded a patent covering an invention of ours even if we had made the invention before it was made by thethird party. The change to “first-to-file” from “first-to-invent” is one of the changes to the patent laws of the U.S. resulting from the Leahy-Smith AmericaInvents Act (the “Leahy-Smith Act”), signed into law on September 16, 2011. Among some of the other significant changes to the patent laws are changesthat limit where a patentee may file a patent infringement suit and provide opportunities for third parties to challenge any issued patent in the USPTO. It isnot yet clear what, if any, impact the Leahy-Smith Act will have on the operation of our business. However, the Leahy-Smith Act and its implementationcould increase the uncertainties and costs surrounding the prosecution of our patent applications and the enforcement or defense of our issued patents, all ofwhich could have a material adverse effect on our business and financial condition.Patents granted by the European Patent Office may be opposed by any person within nine months from the publication of their grant and, in addition,may be challenged before national courts at any time. If the breadth or strength of protection provided by the patents and patent applications we hold, licenseor pursue with respect to our product candidates is threatened, it could threaten our ability to prevent third parties from using the same technologies that weuse in our product candidates.We have issued patents and have filed patent applications, which are currently pending, covering various aspects of our product candidates. Wecannot offer any assurances about which, if any, patents will issue, the breadth of any such patent or whether any issued patents will be found invalid andunenforceable or will be threatened or infringed by third parties. Any successful actions by third parties to challenge the validity or enforceability of anypatents, which may issue to us could deprive us of the ability to prevent others from using the technologies claimed in such issued patents. Further, if weencounter delays in regulatory approvals, the period of time during which we could market a product candidate under patent protection could be reduced.While our business is based primarily on the timing of our biosimilar product launches to occur after the expiration of relevant patents and onavoiding infringing valid and enforceable rights of third parties, we have filed a number of patent applications seeking patents that cover various proprietaryelements of our product candidates when we have believed securing such patents may afford a competitive advantage. Our patent portfolio includes pendingpatent applications and issued patents, in the U.S. and globally, covering etanercept and adalimumab products and methods of making them. We cannotguarantee that our proprietary technologies will avoid infringement of third party patents. Moreover, because competitors may be able to develop their ownproprietary technologies, it is uncertain whether any of our issued patents or pending patent applications directed to etanercept and adalimumab would coverthe etanercept and adalimumab products of any competitors. The product and patent landscape is highly uncertain and we cannot predict whether our patentfilings will afford us a competitive advantage against third parties or if our etanercept and adalimumab products will avoid infringement of third partypatents.47 We do not consider it necessary for us or our competitors to obtain or maintain a proprietary patent position in order to engage in the business ofbiosimilar development and commercialization. Hence, while our ability to secure patent coverage on our own proprietary developments may improve ourcompetitive position with respect to the product candidates we intend to commercialize, we do not view our own patent filings as a necessary or essentialrequirement for conducting our business nor do we rely on our own patent filings or the potential for any commercial advantage they may provide us as abasis for our success.Obtaining and maintaining our patent protection depends on compliance with various procedural requirements, document submissions, fee payment andother requirements imposed by governmental patent agencies. Our patent protection could be reduced or eliminated for non-compliance with theserequirements.The USPTO and various foreign governmental patent agencies require compliance with a number of procedural, documentary, fee payment and otherprovisions during the patent process. In many cases, an inadvertent lapse can be cured by payment of a late fee or by other means in accordance with theapplicable rules. However, there are situations in which noncompliance can result in abandonment or lapse of a patent or patent application, resulting inpartial or complete loss of patent rights in the relevant jurisdiction. In such an event, competitors might be able to enter the market earlier than wouldotherwise have been the case.We may not be able to protect our intellectual property rights throughout the world.Filing, prosecuting, defending and enforcing patents on product candidates in all countries throughout the world would be prohibitively expensive,and our intellectual property rights in some countries outside the U.S. can be less extensive than those in the U.S. In addition, the laws of some foreigncountries do not protect intellectual property rights to the same extent as federal and state laws in the U.S. Further, licensing partners may choose not to filepatent applications in certain jurisdictions in which we may obtain commercial rights, thereby precluding the possibility of later obtaining patent protectionin these countries. Consequently, we may not be able to prevent third parties from practicing our inventions in all countries outside the U.S. or importingproducts made using our inventions into the U.S. or other jurisdictions. Competitors may use our technologies in jurisdictions where we have not obtainedpatent protection to develop their own products and may also export infringing products to territories where we have patent protection, but the ability toenforce our patents is not as strong as that in the U.S. These products may compete with our products and our patents or other intellectual property rights maynot 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 legalsystems of certain countries, particularly certain developing countries, do not favor the enforcement of patents, trade secrets and other intellectual propertyprotection, which could make it difficult for us to stop the infringement of our patents or marketing of competing products in violation of our proprietaryrights generally. Proceedings to enforce our patent rights in foreign jurisdictions, whether or not successful, 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. Governments of foreign countries may force us to license our patents to third parties on termsthat are not commercially reasonable or acceptable to us. 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.Changes in U.S. patent law could diminish the value of patents in general, thereby impairing our ability to protect our products.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 involves both technological and legal complexity. Therefore, obtaining and enforcingbiopharmaceutical patents is costly, time consuming and inherently uncertain. In addition, the U.S. has recently enacted and is currently implementing wide-ranging patent reform legislation. Recent Supreme Court rulings have narrowed the scope of patent protection available in certain circumstances andweakened the rights of patent owners in certain situations.In addition to increasing uncertainty with regard to our ability to obtain patents in the future, this combination of events has created uncertainty withrespect to the value of patents, once obtained. Depending on future actions by the U.S. Congress, the Federal Courts and the USPTO, the laws and regulationsgoverning patents could change in unpredictable ways that would weaken our ability to obtain new patents or to enforce our existing patents and patents thatwe might obtain in the future.If we are unable to maintain effective (non-patent) proprietary rights for our product candidates or any future product candidates, we may not be able tocompete effectively in our markets.While we have filed patent applications to protect certain aspects of our own proprietary formulation and process developments, we also rely on tradesecret protection and confidentiality agreements to protect proprietary scientific, business and technical information and know-how that is not or may not bepatentable or that we elect not to patent. However, confidential information and trade secrets can be difficult to protect. Moreover, the information embodiedin our trade secrets and confidential information may be independently and legitimately developed or discovered by third parties without any improper useof or reference to information or trade secrets. We seek to48 protect the scientific, technical and business information supporting our operations, as well as the confidential information relating specifically to ourproduct candidates by entering into confidentiality agreements with parties to whom we need to disclose our confidential information, for example, ouremployees, consultants, scientific advisors, board members, contractors, potential collaborators and investors. However, we cannot be certain that suchagreements have been entered into with all relevant parties. We also seek to preserve the integrity and confidentiality of our data and trade secrets bymaintaining physical security of our premises and physical and electronic security of our information technology systems, but it is possible that thesesecurity measures could be breached. While we have confidence in these individuals, organizations and systems, agreements or security measures may bebreached, and we may not have adequate remedies for any breach. Our confidential information and trade secrets thus may become known by our competitorsin ways we cannot prove or remedy.Although we expect all of our employees and consultants to assign their inventions to us, and all of our employees, consultants, advisors and any thirdparties who have access to our proprietary know-how, information or technology to enter into confidentiality agreements, we cannot provide any assurancesthat all such agreements have been duly executed. We cannot guarantee that our trade secrets and other confidential proprietary information will not bedisclosed or that competitors will not otherwise gain access to our trade secrets or independently develop substantially equivalent information andtechniques. For example, any of these parties may breach the agreements and disclose our proprietary information, including our trade secrets, and we maynot be able to obtain adequate remedies for such breaches. Misappropriation or unauthorized disclosure of our trade secrets could impair our competitiveposition and may have a material adverse effect on our business. Additionally, if the steps taken to maintain our trade secrets are deemed inadequate, we mayhave insufficient recourse against third parties for misappropriating the trade secret. We cannot guarantee that our employees, former employees orconsultants will not file patent applications claiming our inventions. Because of the “first-to-file” laws in the U.S., such unauthorized patent applicationfilings may defeat our attempts to obtain patents on our own inventions.We may be subject to claims challenging the inventorship of our patent filings and other intellectual property.Although we are not currently aware of any claims challenging the inventorship of our patent applications or ownership of our intellectual property,we may in the future be subject to claims that former employees, collaborators or other third parties have an interest in our patent applications or patents wemay be granted or other intellectual property as an inventor or co-inventor. For example, we may have inventorship or ownership disputes arise fromconflicting obligations of consultants or others who are involved in developing our product candidates. Litigation may be necessary to defend against theseand other claims challenging inventorship or ownership. If we fail in defending any such claims, in addition to paying monetary damages, we may losevaluable intellectual property rights, such as exclusive ownership of or right to use valuable intellectual property. Such an outcome could have a materialadverse effect on our business. Even if we are successful in defending against such claims, litigation could result in substantial costs and be a distraction tomanagement and other employees.If we fail to comply with our obligations in the agreements under which we license intellectual property and other rights from third parties or otherwiseexperience disruptions to our business relationships with our licensors, we could lose license rights that are important to our business.We are a party to certain non-exclusive intellectual property license agreements with Genentech (pertaining to the production of monoclonalantibodies) and Selexis SA and other vendors (pertaining to cell lines for CHS-0214 and CHS-1420) that are important to our business, and we expect to enterinto additional license agreements in the future. Our existing license agreements impose, and we expect that future license agreements will impose, variousdiligence, milestone payment, royalty and other obligations on us. If we fail to comply with our obligations under these agreements or we are subject to abankruptcy, we may be required to make certain payments to the licensor, we may lose the license or the licensor may have the right to terminate the license,in which event we would not be able to develop or market products covered by the license. Additionally, the milestone and other payments associated withthese licenses will make it less profitable for us to develop our product candidates.In the event we breach any of our obligations related to such agreements, we may incur significant liability to our licensing partners. Disputes mayarise regarding intellectual property subject to a licensing agreement, 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 patents 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 joint creation or use of intellectual property by our licensors and us and ourcollaborators; and •the priority of invention of patented technology.49 If disputes over intellectual property and other rights that we have licensed prevent or impair our ability to maintain our current licensingarrangements on acceptable terms, we may be unable to successfully develop and commercialize the affected product candidates and that could have amaterial adverse effect on our business.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 certain intellectual property, through licenses from third parties and under patent applications that we own, to developCHS-1420 and CHS-0214. Because we may find that our programs require the use of proprietary rights held by third parties, the growth of our business maydepend in part on our ability to acquire, in-license or use these proprietary rights. We may be unable to acquire or in-license compositions, methods of use,processes or other third party intellectual property rights from third parties that we identify as necessary for our product candidates. The licensing andacquisition of third-party intellectual property rights is a competitive area, and a number of more established companies are also pursuing strategies to licenseor acquire third-party intellectual property rights that we may consider attractive. These established companies may have a competitive advantage over usdue to their size, financial resources and greater clinical development and commercialization capabilities. In addition, companies that perceive us to be acompetitor may be unwilling to assign or license rights to us. We also may be unable to license or acquire third-party intellectual property rights on termsthat would allow us to make an appropriate return on our investment.If we are unable to successfully obtain required third party intellectual property rights or maintain the existing intellectual property rights we have, wemay have to abandon development of that program and our business and financial condition could suffer.Our ability to market our products in the U.S. may be significantly delayed or prevented by the BPCIA patent dispute resolution mechanism.The Biologics Price Competition and Innovation Act of 2009, Title VII, Subtitle A of the Patent Protection and Affordable Care Act, Pub.L.No.111-148, 124 Stat.119, Sections 7001-02 signed into law March 23, 2010, and codified in 42 U.S.C. §262, (the “BPCIA”), created an elaborate and complexpatent dispute resolution mechanism for biosimilars that, if we choose to implement it, could prevent us from launching our product candidates in the U.S. orcould substantially delay such launches. However, even if we elect not to implement this mechanism, the launch of our products in the U.S. could still beprevented or substantially delayed by intellectual property disputes with originator companies that market the reference products on which our biosimilarproducts are based.The BPCIA establishes a patent disclosure and briefing process between the biosimilar applicant and the originator that is demanding and time-sensitive. While certain aspects of this process are still being tested in the federal courts, the U.S. Supreme Court, as discussed further below, recently ruledthat this process is not mandatory, such that a biosimilar applicant may elect to engage in this process, but is not required to do so. The following is anoverview of the patent exchange and patent briefing procedures established by the BPCIA for biosimilar applicants that elect to employ them: 1.Disclosure of the Biosimilar Application. Within 20 days after the FDA publishes a notice that its application has been accepted for review, a351(k) biosimilar applicant may elect to provide a copy of its application to the originator if it chooses to engage in the BPCIA patentexchange mechanism. 2.Identification of Pertinent Patents. Within 60 days of the date of receipt of the application the originator must identify patents owned orcontrolled by the originator, which it believes could be asserted against the biosimilar applicant. 3.Statement by the Biosimilar Applicant. Following the receipt of the originator’s patent list, the biosimilar applicant must state either that it willnot market its product until the relevant patents have expired or alternatively provide its arguments that the patents are invalid, unenforceableor would not be infringed by the proposed biosimilar product candidate. The biosimilar applicant may also provide the originator with a list ofpatents it believes the brand-name firm could assert against the reference product. 4.Statement by the Originator. In the event the biosimilar applicant has asserted that the patents are invalid, unenforceable or would not beinfringed by the proposed follow-on product, the originator must provide the biosimilar applicant with a response within 60 days. The responsemust provide the legal and factual basis of the opinion that such patent will be infringed by the commercial marketing of the proposedbiosimilar. 5.Patent Resolution Negotiations. If the originator provides its detailed views that the proposed biosimilar would infringe valid and enforceablepatents, then the parties are required to engage in good faith negotiations to identify which of the discussed patents will be the subject of apatent infringement action. If the parties agree on the patents to be litigated, the brand-name firm must bring an action for patent infringementwithin 30 days. 6.Simultaneous Exchange of Patents. If those negotiations do not result in an agreement within 15 days, then the biosimilar applicant must notifythe originator of how many patents (but not the identity of those patents) that it wishes to litigate. Within five days, the parties are thenrequired to exchange lists identifying the patents to be litigated. The number of patents identified by the originator may not exceed the numberprovided by the biosimilar applicant. However, if the biosimilar applicant previously indicated that no patents should be litigated, then theoriginator may identify one patent.50 7.Commencement of Patent Litigation. The originator must then commence patent infringement litigation within 30 days. That litigation willinvolve all of the patents on the originator’s list and all of the patents on the follow-on applicant’s list. The follow-on applicant must thennotify the FDA of the litigation. The FDA must then publish a notice of the litigation in the Federal Register. 8.Notice of Commercial Marketing. The BPCIA requires the biosimilar applicant to provide notice to the originator 180 days in advance of itsfirst commercial marketing of its proposed follow-on biologic. The originator is allowed to seek a preliminary injunction blocking suchmarketing based upon any patents that either party had preliminarily identified, but were not subject to the initial phase of patent litigation.The litigants are required to “reasonably cooperate to expedite such further discovery as is needed” with respect to the preliminary injunctionmotion. The federal courts have not yet settled the issue as to when, or under what circumstances, the biosimilar applicant must provide the 180notice of commercial marketing provided in the BPCIA.On July 21, 2015 the Federal Circuit court in litigation between Amgen and Sandoz ruled that the BPCIA patent exchange process is optional and thatapplicants that choose not to engage in it must comply with the BPCIA’s requirement to provide the originator 180 days prior notice of commercialmarketing. The court also ruled that such notice is not effective unless given after FDA licensure. Thus, biosimilar applicants that opt out of the BPCIA patentexchange process must wait at least 180 days after licensure to launch their biosimilar products. On February 16, 2016 Sandoz filed a petition for writ ofcertiorari to the Supreme Court, asking the Court to reverse the Federal Circuit court’s decision that the BPCIA 180-day pre-marketing notification can onlybe given after the FDA has approved the biosimilar product. On January 13, 2017, the Supreme Court decided to review the Federal Court ruling in Amgen v.Sandoz as it pertained to (i) issues regarding whether the so-called “patent dance” is optional or mandatory; and (ii) issues regarding the 180-day pre-marketing notification, including whether the notice may be given prior to licensure of the biosimilar product.On December 9, 2015, in litigation between Amgen and Apotex (Amgen v. Apotex, relating to Apotex’s biosimilar for Neulasta (pegfilgrastim)), theFlorida District court ruled that although Apotex had engaged in the BPCIA patent exchange process voluntarily, it was nonetheless required to provide 180days prior notice of commercial marketing to Amgen, and that it could only provide such notice upon regulatory approval. Apotex appealed this decision tothe Federal Circuit. In July 2016, the Federal Circuit affirmed the Florida District Court decision and if such decision is not overturned by the Supreme Court,all 351(k) biosimilar applicants will be required to refrain from launching an approved biosimilar product for 180 days following 351(k) regulatory approval,without regard to whether such applicants elected to participate in the BPCIA patent exchange process. On December 12, 2016, the Supreme Court declinedto hear Amgen v. Apotex, however, on January 13, 2017, the Supreme Court granted Apotex leave to file an amicus brief in the Supreme Court’s review of theAmgen v. Sandoz decision.On June 12, 2017, the Supreme Court issued its decision in Amgen v. Sandoz, holding that (i) the “patent dance” is optional; and (ii) the 180-day pre-marketing notification may be given either before or after receiving FDA approval of the biosimilar product. The Supreme Court declined to rule whether astate injunctive remedy may be available to the originator and remanded that question to the Federal Circuit for further consideration.A significant legal risk for a biosimilar applicant that pursues regulatory approval under the 351(k) regulatory approval route, and also elects toengage in the above-described BPCIA patent exchange mechanism, is that the process could result in the initiation of patent infringement litigation prior toFDA approval of a 351(k) application, and such litigation could result in blocking the market entry of the biosimilar product. However, even if biosimilarapplicants opt out of the BPCIA patent exchange process, originators will still have the right to assert patent infringement as a basis to enjoin a biosimilarproduct launch. Thus, whether or not we engage in the BPCIA patent exchange process, there is risk that patent infringement litigation initiated byoriginators could prevent us indefinitely from launching our biosimilar products.The legal and strategic considerations weighing for or against a decision to voluntarily engage in the BPCIA patent exchange process are complexand will differ on a product-by-product basis. If we decide to engage in the BPCIA patent exchange process, preparing for and conducting the patentexchange, briefing and negotiation process outlined above will require extraordinarily sophisticated legal counseling and extensive planning, all underextremely tight deadlines. Moreover, it may be difficult for us to secure or retain such legal support if large, well-funded originators have already entered intoengagements with highly qualified law firms or if the most highly qualified law firms choose not to represent biosimilar applicants due to their long-standingrelationships with originators.Furthermore, we could be at a serious disadvantage in this process, as an originator company such as Amgen (in the case of CHS-0214) or AbbVie (inthe case of CHS-1420) may be able to apply substantially greater legal and financial resources to this process than we could.If we file a 351(k) regulatory approval application for one or more of our products, we may consider it necessary or advisable to adopt the strategy ofselecting one or more patents of the originator to litigate in the above described BPCIA process (for example in steps 3 and 7, of the process, as outlinedabove), either to assert our non-infringement of such patents or to challenge their validity, or both; but we may ultimately not be successful in that strategyand could be prevented, indefinitely, from marketing the product in the U.S.51 Under the complex, and uncertain rules of the BPCIA patent provisions, coupled with the inherent uncertainty surrounding the legal interpretation ofany originator patents that might be asserted against us in this new process, we see substantial risk that the BPCIA process may significantly delay or defeatour ability to market our products in the U.S.Risks Related to Our Business OperationsWe may not be successful in our efforts to identify, develop or commercialize additional product candidates.Although a substantial amount of our effort will focus on the continued clinical testing, potential approval and commercialization of our existingproduct candidates, the success of our business also depends upon our ability to identify, develop and commercialize additional product candidates.Research programs to identify new product candidates require substantial technical, financial and human resources. We may focus our efforts and resourceson potential programs or product candidates that ultimately prove to be unsuccessful. Our development efforts may fail to yield additional productcandidates suitable for clinical development and commercialization for a number of reasons, including but not limited to the following: •we may not be successful in identifying potential product candidates that pass our strict screening criteria; •we may not be able to overcome technological hurdles to development or a product candidate may not be capable of producing commercialquantities at an acceptable cost or at all; •we may not be able to assemble sufficient resources to acquire or discover additional product candidates; •our product candidates may not succeed in nonclinical or clinical testing; •our potential product candidates may fail to show sufficient biosimilarity to originator molecules; and •competitors may develop alternatives that render our product candidates obsolete or less attractive or the market for a product candidate maychange such that a product candidate may not justify further development.If any of these events occur, we may be forced to abandon our development efforts for a program or programs or we may not be able to identify,develop or commercialize additional product candidates, which would have a material adverse effect on our business and could potentially cause us to ceaseoperations.We incur significant increased costs as a result of operating as a public company, and our management is required to devote substantial time tocompliance initiatives. We may fail to comply with the rules that apply to public companies, including Section 404 of the Sarbanes-Oxley Act of 2002,which could result in sanctions or other penalties that would harm our business.We incur significant legal, accounting and other expenses as a public company, including costs resulting from public company reporting obligationsunder the Securities Exchange Act of 1934, as amended (the “Exchange Act”), and regulations regarding corporate governance practices. The listingrequirements of The Nasdaq Global Market require that we satisfy certain corporate governance requirements relating to director independence, distributingannual and interim reports, stockholder meetings, approvals and voting, soliciting proxies, conflicts of interest and a code of conduct. Our management andother personnel must devote a substantial amount of time to ensure that we maintain compliance with all of these requirements. Moreover, the reportingrequirements, rules and regulations have increased our legal and financial compliance costs and make some activities more time consuming and costly. Anychanges we have made, and may make in the future to comply with these obligations may not be sufficient to allow us to satisfy our obligations as a publiccompany on a timely basis, or at all. These reporting requirements, rules and regulations, coupled with the increase in potential litigation exposure associatedwith being a public company, may also make it more difficult for us to attract and retain qualified persons to serve on our board of directors or boardcommittees or to serve as executive officers, or to obtain certain types of insurance, including directors’ and officers’ insurance, on acceptable terms.We are subject to Section 404 of The Sarbanes-Oxley Act of 2002 (“Section 404”), and the related rules of the Securities and Exchange Commission(“SEC”), which generally require our management and independent registered public accounting firm to report on the effectiveness of our internal controlover financial reporting. During the course of our review and testing, we may identify deficiencies and be unable to remediate them before we must providethe required reports. Furthermore, if we have a material weakness in our internal controls over financial reporting, we may not detect errors on a timely basisand our financial statements may be materially misstated. We or our independent registered public accounting firm may not be able to conclude on anongoing basis that we have effective internal control over financial reporting, which could harm our operating results, cause investors to lose confidence inour reported financial information and cause the trading price of our stock to fall. In addition, as a public company we are required to file accurate and timelyquarterly and annual reports with the SEC under the Exchange Act. Any failure to report our financial results on an accurate and timely basis could result insanctions, lawsuits, delisting of our shares from The Nasdaq Global Market or other adverse consequences that would materially harm our business.Stockholder activism, the current political environment and the current high level of government intervention and regulatory reform may also lead tosubstantial new regulations and disclosure obligations, which may lead to additional compliance costs and impact the manner in which we operate ourbusiness in ways we cannot currently anticipate. Our management and other personnel will need to devote a52 substantial amount of time to these compliance initiatives. Moreover, these rules and regulations will increase our legal and financial compliance costs andwill make some activities more time consuming and costly. For example, we expect these rules and regulations to make it more difficult and more expensivefor us to obtain director and officer liability insurance and we may be required to incur substantial costs to maintain our current levels of such coverage.Healthcare legislative reform measures may have a material adverse effect on our business and results of operations.In the U.S., there have been and continue to be a number of legislative initiatives to contain healthcare costs. For example, in March 2010, the PatientProtection and Affordable Care Act, as amended by the Health Care and Education Reconciliation Act, (together the “PPACA”), was passed, whichsubstantially changes the way health care is financed by both governmental and private insurers and significantly impacts the U.S. pharmaceutical industry.The PPACA, among other things, addresses a new methodology by which rebates owed by manufacturers under the Medicaid Drug Rebate Program arecalculated for drugs that are inhaled, infused, instilled, implanted or injected, increases the minimum Medicaid rebates owed by manufacturers under theMedicaid Drug Rebate Program and extends the rebate program to individuals enrolled in Medicaid managed care organizations, adds a provision to increasethe Medicaid rebate for line extensions or reformulated drugs, establishes annual fees and taxes on manufacturers of certain branded prescription drugs andpromotes a new Medicare Part D coverage gap discount program. Since its enactment, there have been judicial and Congressional challenges to certainaspects of the PPACA, and we expect there will be additional challenges and amendments to the PPACA in the future, particularly in light of the currentpresidential administration and U.S. Congress. In addition, Congress could consider subsequent legislation to replace or repeal and replace elements of thePPACA. Most recently, the Tax Cuts and Jobs Act was enacted, which, among other things, removes penalties for not complying with PPACA’s individualmandate to carry health insurance. At this time, the full effect that the PPACA and any subsequent legislation would have on our business remains unclear.In addition, other legislative changes have been proposed and adopted in the U.S. since the PPACA was enacted. On August 2, 2011, the BudgetControl Act of 2011, among other things, included aggregate reductions of Medicare payments to providers of 2% per fiscal year, which went into effect onApril 1, 2013 and will stay in effect through 2025 unless additional Congressional action is taken. On January 2, 2013, the American Taxpayer Relief Act of2012 was signed into law, which, among other things, further reduced Medicare payments to certain providers, including physicians, hospitals and cancertreatment centers. Recently there has also been heightened government scrutiny over the manner in which manufacturers set prices for their approvedproducts, which has resulted in several Congressional inquiries and proposed bills designed to, among other things, reform government programreimbursement methodologies. Individual states in the U.S. have also become increasingly aggressive in passing legislation and implementing regulationsdesigned to control pharmaceutical product pricing, including price or patient reimbursement constraints, discounts, restrictions on certain product accessand marketing cost disclosure and transparency measures, and, in some cases, designed to encourage importation from other countries and bulk purchasing.We expect that additional state and federal healthcare reform measures will be adopted in the future, any of which could limit the amounts that federal andstate governments will pay for healthcare products and services, which could result in reduced demand for our product candidates or additional pricingpressures, such as a single reimbursement code for biosimilar products.We may be subject, directly or indirectly, to federal and state healthcare laws, including fraud and abuse, false claims, physician payment transparencyand health information privacy and security laws. If we are unable to comply or have not fully complied with such laws, we could face substantialpenalties.Our operations are directly or indirectly through our customers subject to various federal and state fraud and abuse laws, including, without limitation,the federal Anti-Kickback Statute, the federal False Claims Act and physician sunshine laws and regulations. These laws impact, among other things, 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 cash or in kind, to induce or in return for the purchase, recommendation, order or furnishing of anitem or service reimbursable, in whole or in part, under a federal healthcare program, such as the Medicare and Medicaid programs. A person orentity does not need to have actual knowledge of the federal Anti-Kickback Statute or specific intent to violate it to have committed aviolation. In addition, the government may assert that a claim including items or services resulting from a violation of the federal Anti-Kickback Statute constitutes a false or fraudulent claim for purposes of the False Claims Act; •federal civil and criminal false claims laws and civil monetary penalty laws, which prohibit, among other things, individuals or entities fromknowingly presenting or causing to be presented claims for payment from Medicare, Medicaid or other third-party payors that are false orfraudulent and which may apply to entities that provide coding and billing advice to customers; •the federal Health Insurance Portability and Accountability Act of 1996 (“HIPAA”), which created new federal criminal statutes that prohibitexecuting a scheme to defraud any healthcare benefit program and making false statements relating to healthcare matters. Similar to the federalAnti-Kickback Statute, a person or entity does not need to have actual knowledge of the statute or specific intent to violate it to havecommitted a violation;53 •HIPAA, as amended by the Health Information Technology for Economic and Clinical Health Act (“HITECH”), and its implementingregulations, which imposes certain requirements relating to the privacy, security and transmission of individually identifiable healthinformation; •the federal physician “sunshine” requirements under the PPACA, which requires certain manufacturers of drugs, devices, biologics and medicalsupplies to report annually to the Centers for Medicare & Medicaid Services information related to payments and other transfers of value madeby such manufacturers to physicians and teaching hospitals and ownership and investment interests held by physicians and their immediatefamily members and applicable group purchasing organizations; and •state and foreign law equivalents of each of the above federal laws, such as anti-kickback and false claims laws that may apply to items orservices reimbursed by any third-party payor, 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 governmentor 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 pricing information; and state laws governing the privacy and security of health information in certain circumstances, manyof which differ from each other in significant ways and may not have the same effect, thus complicating compliance efforts.Because of the breadth of these laws and the narrowness of the statutory exceptions and safe harbors available, it is possible that some of our businessactivities could be subject to challenge under one or more of such laws. In addition, recent health care reform legislation has strengthened these laws.If our operations are found to be in violation of any of the laws described above or any other governmental regulations that apply to us, we may besubject to penalties, including civil and criminal penalties, damages, fines, exclusion from participation in government health care programs, such asMedicare and Medicaid, imprisonment and the curtailment or restructuring of our operations, any of which could adversely affect our ability to operate ourbusiness and our results of operations.The international aspects of our business expose us to business, regulatory, political, operational, financial and economic risks associated with doingbusiness outside of the U.S.We currently have limited international operations of our own and have and may have in the future a number of international collaborations. Doingbusiness internationally involves a number of risks, including but not limited to: •multiple, conflicting and changing laws and regulations such as privacy regulations, tax laws, export and import restrictions, employment laws,regulatory requirements and other governmental approvals, permits and licenses; •failure by us or our collaboration partners to obtain and maintain regulatory approvals for the use of our products in various countries; •additional potentially relevant third-party patent rights; •complexities and difficulties in obtaining protection and enforcing our intellectual property; •difficulties in staffing and managing foreign operations by us or our collaboration partners; •complexities associated with managing multiple payor reimbursement regimes, government payors or patient self-pay systems by ourcollaboration partners; •limits in our or our collaboration partners’ ability to penetrate international markets; •financial risks, such as longer payment cycles, difficulty collecting accounts receivable, the impact of local and regional financial crises ondemand and payment for our products and exposure to foreign currency exchange rate fluctuations; •natural disasters, political and economic instability, including wars, terrorism and political unrest, outbreak of disease, boycotts, curtailment oftrade and other business restrictions; •certain expenses including, among others, expenses for travel, translation and insurance; and •regulatory and compliance risks that relate to maintaining accurate information and control over sales and activities that may fall within thepurview of the U.S. Foreign Corrupt Practices Act, its books and records provisions or its anti-bribery provisions.Sanctions against Russia, and Russia’s response to those sanctions, could materially adversely affect our business, financial condition and results ofoperations.Due to Russia’s military intervention in Ukraine in March 2014, the U.S. and the E.U. imposed sanctions on Russia, including sanctions on certainindividuals and other entities. In response, Russia has imposed entry bans on certain U.S. lawmakers and officials, and trading sanctions against nations thatimplemented or supported the anti-Russia sanctions, including the U.S. and the E.U. Our wholly owned54 subsidiary, InteKrin Therapeutics, Inc. (“InteKrin”), which we acquired in February 2014 is majority owner of a Russian pharmaceutical development entity,ZAO InteKrin, which holds $2,134 of cash in Russian banks as of December 31, 2017. This Russian subsidiary of InteKrin conducts research anddevelopment activities for a product we acquired as part of our acquisition of InteKrin. The product is a small molecule peroxisome proliferator-activatedreceptor (“PPAR”), gamma modulator that may hold promise in treatment of multiple sclerosis (“MS”). While not a biosimilar, this PPAR gamma modulatorcompound may be complementary to biosimilar products for treatment of MS that we are currently evaluating for inclusion in our pipeline. If the U.S. and theE.U. were to impose broader sanctions on Russia, including sanctions on Russian businesses such as InteKrin, or if Russia were to take retaliatory actionagainst U.S. companies operating in Russia, our research and development activities related to the InteKrin PPAR gamma modulator product could bematerially adversely affected.If we fail to comply with environmental, health and safety laws and regulations, we could become subject to fines or penalties or incur costs that couldhave a material adverse effect on the success of our business.Our research and development activities and our third-party manufacturers’ and suppliers’ activities involve the controlled storage, use and disposal ofhazardous materials, including the components of our product candidates and other hazardous compounds. We and our manufacturers and suppliers aresubject to laws and regulations governing the use, manufacture, storage, handling and disposal of these hazardous materials. In some cases, these hazardousmaterials and various wastes resulting from their use are stored at our and our manufacturers’ facilities pending their use and disposal. We cannot eliminatethe risk of contamination, which could cause an interruption of our commercialization efforts, research and development efforts and business operations,environmental damage resulting in costly cleanup and liabilities under applicable laws and regulations governing the use, storage, handling and disposal ofthese materials and specified waste products. Although we believe that the safety procedures utilized by us and our third-party manufacturers for handlingand disposing of these materials generally comply with the standards prescribed by these laws and regulations, we cannot guarantee that this is the case oreliminate the risk of accidental contamination or injury from these materials. In such an event, we may be held liable for any resulting damages and suchliability could exceed our resources and state or federal or other applicable authorities may curtail our use of certain materials and/or interrupt our businessoperations. Furthermore, environmental laws and regulations are complex, change frequently and have tended to become more stringent. We cannot predictthe impact of such changes and cannot be certain of our future compliance. We do not currently carry biological or hazardous waste insurance coverage.We or the third parties upon whom we depend may be adversely affected by earthquakes or other natural disasters and our business continuity and disasterrecovery plans may not adequately protect us from a serious disaster.Our corporate headquarters and laboratory are located in the San Francisco Bay Area and in Southern California (Camarillo), respectively. Theselocations have in the past experienced severe earthquakes and other natural disasters. We do not carry earthquake insurance. Earthquakes or other naturaldisasters could severely disrupt our operations or those of our collaboration partners and have a material adverse effect on our business, results of operations,financial condition and prospects. If a natural disaster, power outage or other event occurred that prevented us from using all or a significant portion of ourheadquarters, that damaged critical infrastructure (such as the manufacturing facilities of our third-party contract manufacturers) or that otherwise disruptedoperations, it may be difficult or, in certain cases, impossible for us to continue our business for a substantial period of time. The disaster recovery andbusiness continuity plans we have in place currently are limited and are unlikely to prove adequate in the event of a serious disaster or similar event. We mayincur substantial expenses as a result of the limited nature of our disaster recovery and business continuity plans, which, particularly when taken togetherwith our lack of earthquake insurance, could have a material adverse effect on our business. Risks Related to Ownership of Our Common StockThe market price of our common stock may be highly volatile, and purchasers of our common stock could incur substantial losses.The market price of our common stock has been highly volatile since our IPO and the intraday sales price per share has ranged from $8.05 to $38.10per share during the period from November 6, 2014 through March 2, 2018 and could be subject to wide fluctuations in response to various factors, some ofwhich are beyond our control. These factors include those discussed in the “Risk Factors” section of this Annual Report on Form 10-K and others such as: •adverse results or delays in preclinical or clinical studies; •any inability to obtain additional funding; •any delay in filing an IND, NDA, BLA or other regulatory submission for any of our product candidates and any adverse development orperceived adverse development with respect to the applicable regulatory agency’s review of that IND, NDA, BLA or other regulatorysubmission; •the perception of limited market sizes or pricing for our product candidates; •failure to successfully develop and commercialize our product candidates; •post-marketing safety issues relating to our product candidates or biosimilars generally; •failure to maintain our existing strategic collaborations or enter into new collaborations;55 •failure by us or our licensors and strategic collaboration partners to prosecute, maintain or enforce our intellectual property rights; •changes in laws or regulations applicable to our products; •any inability to obtain adequate product supply for our product candidates or the inability to do so at acceptable prices; •adverse regulatory decisions; •introduction of new products, services or technologies by our competitors; •failure to meet or exceed financial projections we may provide to the public; •failure to meet or exceed the financial projections of the investment community; •the perception of the pharmaceutical industry by the public, legislatures, regulators and the investment community; •announcements of significant acquisitions, strategic partnerships, joint ventures or capital commitments by us, our strategic collaborationpartners or our competitors; •disputes or other developments relating to proprietary rights, including patents, litigation matters and our ability to obtain patent protection forour technologies; •additions or departures of key scientific or management personnel; •lawsuits, including stockholder litigation and litigation filed by us or filed against us pertaining to patent infringement or other violations ofintellectual property rights; •the outcomes of any citizen petitions filed by parties seeking to restrict or limit the approval of biosimilar products; •if securities or industry analysts do not publish research or reports about our business or if they issue an adverse or misleading opinionregarding our stock; •changes in the market valuations of similar companies; •general market or macroeconomic conditions; •sales of our common stock by us or our stockholders in the future; •trading volume of our common stock; •issuance of patents to third parties that could prevent our ability to commercialize our product candidates; •reductions in the prices of originator products that could reduce the overall market opportunity for our product candidates intended asbiosimilars to such originator products; •the loss of one or more employees constituting our leadership team; and •changes in biosimilar regulatory requirements that could make it more difficult for us to develop our product candidates.In addition, biopharmaceutical companies in particular have experienced extreme price and volume fluctuations that have often been unrelated ordisproportionate to the operating performance of these companies. Broad market and industry factors may negatively affect the market price of our commonstock, regardless of our actual operating performance.Our principal stockholders and management own a significant percentage of our stock and will be able to exert significant control over matters subject tostockholder approval.As of December 31, 2017, our executive officers, directors, five percent stockholders and their affiliates beneficially owned approximately 57% of ourvoting stock (assuming no exercise of outstanding options or conversion of our outstanding convertible notes). These stockholders have the ability toinfluence us through their ownership positions, which may prevent or discourage unsolicited acquisition proposals or offers for our common stock that youmay believe are in your best interest as one of our stockholders.Sales of a substantial number of shares of our common stock in the public market could cause our stock price to fall.If our existing stockholders sell or indicate an intention to sell substantial amounts of our common stock in the public market after the lock-up andother legal restrictions on resale lapse, the market price of our common stock could decline. As of December 31, 2017, there were 59,840,467 shares ofcommon stock outstanding. Of these shares, the shares of our common stock sold in our IPO, our underwritten follow-on offering, pursuant to our at-the-market equity offering program and in private placement transactions (subject to certain lock-up periods) are currently freely tradable, without restriction(except as otherwise applicable), in the public market.56 In addition, as of December 31, 2017, approximately 13.5 million shares of common stock that are either subject to outstanding options and restrictedstock units or reserved for future issuance under our equity incentive plans were eligible or may become eligible for sale in the public market to the extentpermitted by the provisions of various vesting schedules and Rule 144 and Rule 701 under the Securities Act. If these additional shares of common stock aresold or if it is perceived that they will be sold in the public market, the market price of our common stock could decline.Future sales and issuances of our common stock or rights to purchase common stock, including pursuant to our equity incentive plans and convertiblenotes, could result in additional dilution of the percentage ownership of our stockholders and could cause our stock price to fall.We will need additional capital in the future to continue our planned operations. To the extent we raise additional capital by issuing equity securities,our stockholders may experience substantial dilution. We may sell common stock, convertible securities or other equity securities in one or more transactionsat prices and in a manner we determine from time to time. If we sell common stock, convertible securities or other equity securities in more than onetransaction, investors may be materially diluted by subsequent sales. These sales may also result in material dilution to our existing stockholders, and newinvestors could gain rights superior to our existing stockholders. Any future debt financing may involve covenants that restrict our operations, including,among other restrictions, limitations on our ability to incur liens or additional debt, pay dividends, redeem our stock, make certain investments, and engagein certain merger, consolidation, or asset sale transactions. In addition, if we raise additional funds through licensing arrangements, it may be necessary togrant potentially valuable rights to our product candidates or grant licenses on terms that are not favorable to us.Pursuant to our 2014 Equity Incentive Award Plan (the “2014 Plan”), our management is authorized to grant stock options and other equity-basedawards to our employees, directors and consultants. Under the 2014 Plan, the number of shares of our common stock initially reserved for issuance is2,300,000 plus the number of shares remaining available for future awards under the 2010 Plan. The number of shares available for future grant under the2014 Plan will be increased by (i) the number of shares pursuant to outstanding awards under the 2010 Plan that are forfeited or lapse unexercised and whichfollowing the effective date are not issued under the 2010 Plan and (ii) an annual increase on the first day of each fiscal year beginning in 2015 and ending in2024, equal to 4% of the shares of stock outstanding as of the last day of the preceding fiscal year, or such smaller number of shares as determined by ourboard of directors. Pursuant to our 2014 Employee Stock Purchase Plan (“2014 ESPP”), eligible employees are able to acquire shares of our common stock ata discount to the prevailing market price, and an aggregate of 320,000 shares are initially available for issuance under the 2014 ESPP. The number of sharesavailable for issuance under the 2014 ESPP will automatically increase on the first day of each fiscal year beginning in 2015 and ending in 2024, equal to1% of the shares of common stock outstanding on the last day of the immediately preceding fiscal year or such smaller number of shares as determined by ourboard of directors. If our board of directors elects to increase the number of shares available for future grant under the 2014 Plan or the 2014 ESPP, ourstockholders may experience additional dilution, which could cause our stock price to fall. Pursuant to our 2016 Employment Commencement IncentivePlan (the “2016 Plan”), our management is authorized to grant stock options and other equity-based awards to our new employees. The 2016 Plan is designedto comply with the inducement exemption contained in Nasdaq’s Rule 5635(c)(4), which provides for the grant of non-qualified stock options, restrictedstock units, restricted stock awards, performance awards, dividend equivalents, deferred stock awards, deferred stock units, stock payment and stockappreciation rights to a person not previously an employee or director, or following a bona fide period of non-employment, as an inducement material to theindividual’s entering into employment with us. We reserved for future issuance under the 2016 Plan a total of 1,000,000 share of common stock for newemployees. The 2016 Plan does not provide for any annual increases in the number of shares available.In February 2016, we issued and sold $100.0 million aggregate principal amount of our 8.2% senior convertible notes due March 2022. The holdersmay convert their convertible notes at their option at any time prior to the close of business on the business day immediately preceding March 31, 2022.Upon conversion of the convertible notes by a holder, the holder will receive shares of our common stock, together, if applicable, with cash in lieu of anyfractional share. The initial conversion rate is 44.7387 shares of common stock per $1,000 principal amount of convertible notes, which is equivalent to aninitial conversion price of approximately $22.35 per share, and is subject to adjustment in certain events.In October 2016, we entered into a Sales Agreement with Cowen and Company, LLC under which we may offer and sell our common stock, havingaggregate gross sale proceeds of up to $100.0 million, from time to time through an at-the-market equity offering program (the “ATM Offering Program”). InJanuary and December 2017, we sold 925,999 shares of common stock at a weighted average price of $12.42 per share under the ATM Offering Program foraggregate net proceeds of $11.1 million. As of December 31, 2017, we had $32.0 million remaining under the ATM Offering Program. In January 2018, theCompany issued and sold 183,316 shares of common stock at a weighted average price of $9.38 per share through its ATM Offering Program and receivedtotal net proceeds of $1.7 million.In February 2017 and March 2017, we completed an underwritten public offering of 5,294,902 shares of our common stock, at a price of $24.25 pershare. We received net proceeds from the offering of $120.4 million, after deducting the underwriting discounts and commissions and offering expenses.57 In August 2017, we issued and sold an aggregate of 6,556,116 shares of common stock to V-Sciences Investments Pte Ltd, a private limited Singaporecompany (“Temasek”), in a private placement transaction at an offering price of $11.4397 per share for gross proceeds of $75.0 million. Pursuant to the stockpurchase agreement, Temasek may purchase additional shares of common stock equal to gross proceeds of $75.0 million, subject to certain conditions. OnSeptember 22, 2017, we filed a registration statement with the SEC registering the resale of the common stock sold and issued in the private placementtransaction as of August 2017, and it was declared effective with the SEC on October 16, 2017.In December 2017, the Company issued and sold an aggregate of 776,104 shares of common stock to our contract manufacturer KBI in a privateplacement transaction at an offering price of $8.7746 per share in exchange for the forgiveness of certain fees we incurred in connection with ourmanufacturing and supply agreement with KBI and an advance reservation fee for future manufacturing services for the production of CHS-1701. On January25, 2018, we filed a registration statement with the SEC registering the resale of the common stock sold and issued in the private placement transaction as ofDecember 2017.Our ability to use our net operating loss carryforwards and certain other tax attributes may be limited.Our ability to use our net operating loss carryforwards and certain other tax attributes may be limited.We have incurred substantial losses during our history and do not expect to become profitable in the near future, and we may never achieveprofitability. To the extent that we continue to generate taxable losses, unused losses will carry forward to offset future taxable income, if any, until suchunused losses expire. Under Sections 382 and 383 of the Internal Revenue Code of 1986, as amended, if a corporation undergoes an “ownership change,”generally defined as a greater than 50 percentage point change (by value) in its equity ownership by certain stockholders over a three-year period, thecorporation’s ability to use its pre-change net operating loss carryforwards (“NOLs”), and other pre-change tax attributes (such as research tax credits) tooffset its post-change income or taxes may be limited. We have experienced ownership changes in the past and may experience ownership changes in thefuture as a result of shifts in our stock ownership (some of which shifts are outside our control). As a result, if we earn net taxable income, our ability to useour pre-change NOLs to offset such taxable income will be subject to limitations. Similar provisions of state tax law may also apply to limit our use ofaccumulated state tax attributes. In addition, at the state level, there may be periods during which the use of NOLs is suspended or otherwise limited, whichcould accelerate or permanently increase state taxes owed. As a result, even if we attain profitability, we may be unable to use a material portion of our NOLsand other tax attributes, which could adversely affect our future cash flows.We do not intend to pay dividends on our common stock so any returns will be limited to the value of our stock.We have never declared or paid any cash dividends on our common stock. We currently anticipate that we will retain future earnings for thedevelopment, operation and expansion of our business and do not anticipate declaring or paying any cash dividends for the foreseeable future. Any return tostockholders will therefore be limited to the appreciation of their stock.Provisions in our amended and restated certificate of incorporation and amended and restated bylaws, as well as provisions of Delaware law, could makeit more difficult for a third party to acquire us or increase the cost of acquiring us, even if doing so would benefit our stockholders or remove our currentmanagement.Our amended and restated certificate of incorporation, amended and restated bylaws and Delaware law contain provisions that may have the effect ofdelaying or preventing a change in control of us or changes in our management. Our amended and restated certificate of incorporation and bylaws includeprovisions that: •authorize “blank check” preferred stock, which could be issued by our board of directors without stockholder approval and may containvoting, liquidation, dividend and other rights superior to our common stock; •create a classified board of directors whose members serve staggered three-year terms; •specify that special meetings of our stockholders can be called only by our corporate secretary pursuant to a resolution adopted by a majorityof our board of directors; •prohibit stockholder action by written consent; •establish an advance notice procedure for stockholder approvals to be brought before an annual meeting of our stockholders, includingproposed nominations of persons for election to our board of directors other than nominations made by or at the direction of the board ofdirectors or a committee of the board of directors; •provide that our directors may be removed only for cause or without cause by the holders of 66 2/3% of the voting power of all thenoutstanding shares of voting stock; •provide that vacancies on our board of directors may be filled only by a majority of directors then in office, even though less than a quorum;58 •specify that no stockholder is permitted to cumulate votes at any election of directors; •expressly authorize our board of directors to modify, alter or repeal our amended and restated bylaws; and •require holders of 66 2/3% of the voting power of all then outstanding shares of voting stock to amend specified provisions of our amendedand restated certificate of incorporation except for the provision making it possible for our board of directors to issue “blank check” preferredstock, and amended and restated bylaws.These provisions, alone or together, could delay, deter or prevent hostile takeovers and changes in control or changes in our management.In addition, because we are incorporated in Delaware, we are governed by the provisions of Section 203 of the Delaware General Corporation Law,which limits the ability of stockholders owning in excess of 15% of our outstanding voting stock to merge or combine with us.Any provision of our amended and restated certificate of incorporation or amended and restated bylaws or Delaware law that has the effect of delayingor deterring a change in control could limit the opportunity for our stockholders to receive a premium for their shares of our common stock and could alsoaffect the price that some investors are willing to pay for our common stock. Item 1B.Unresolved Staff CommentsNot applicable. Item 2.PropertiesOur headquarters are located in Redwood City, California, where we occupy office space under a lease that will expire in November 2022 with a five-year renewal option. Our analytical and process development laboratories are located in Camarillo, California under a lease that expires in June 2019 with athree-year renewal option.We believe that our existing facilities are adequate for our current needs. When our leases expire, or if we need to hire more employees, we mayexercise our renewal option or look for additional or alternate space for our operations and we believe that suitable additional or alternative space will beavailable in the future on commercially reasonable terms. Item 3.Legal ProceedingsWe are a party to the following legal proceedings:On November 9, 2015 and December 7, 2015, we filed in the USPTO, pursuant to 35 U.S.C. §§ 311–319 AND 37 C.F.R. § 42, petitions for IPR ofAbbVie’s U.S. patents 8,889,135 (Case No. IPR2016-00172, filed November 9, 2015) (the “ ‘135 patent”); 9,017,680 (Case No. IPR2016-00188, filedDecember 7, 2015) (the “ ‘680 patent”); and 9,073,987 (Case No. IPR 2016-00189, filed December 7, 2015) (the “ ‘987 patent”), each entitled “Methods ofAdministering Anti-TNFα Antibodies” and generally concern a 40 mg biweekly subcutaneous dosing regimen for treating rheumatoid arthritis (“RA”) withHumira® (Adalimumab). On May 16, 2017, the PTAB invalidated all claims of the ‘135 patent, and on June 9, 2017, the PTAB invalidated all claims of the‘680 patent and ‘987 patent. On July 14, 2017, AbbVie filed a Notice of Appeal in the U.S. Court of Appeals for the Federal Circuit in the ‘135 patent, ‘680patent and ‘987 patent. AbbVie filed its appeal brief on November 10, 2017, and a decision on the appeal is expected from the Federal Circuit in 2019.On January 31, 2017, we filed in the USPTO four petitions for IPR (Case Nos. IPR2017-00822; IPR2017-00823; IPR2017-00826; and IPR2017-00827) against AbbVie’s U.S. patent 9,085,619 (the “ ‘619 patent”) entitled “Anti-TNF Antibody Formulations.” Our IPR petitions against the ‘619 patentaddress certain aspects of the patent claims directed to pharmaceutical formulations of adalimumab that do not comprise a buffering system. On March 2,2017, we amended and refiled petitions IPR2017-00826 and IPR2017-00827 as Case Nos. IPR2017-01009 and IPR2017-01008. On September 7, 2017,PTAB denied institution of all four of our petitions for IPR of the ‘619 patent.59 On March 3, 2017, Amgen Inc. and Amgen USA Inc. (collectively “Amgen”) filed an action against us, KBI Biopharma Inc., our employee Howard S.Weiser and Does 1-20 in the Superior Court of the State of California, County of Ventura. The complaint alleges that we engaged in unfair competition andimproperly solicited and hired certain former Amgen employees in order to acquire and access trade secrets and other confidential information belonging toAmgen. On June 1, 2017, Amgen filed a Second Amended Complaint, which alleges as to Coherus (i) unfair competition under California Business andProfessions Code Section 17200 et seq., (ii) misappropriation of trade secrets, (iii) aiding and abetting breach of duty of loyalty and (iv) tortious interferencewith contract. As to defendant Weiser, the Second Amended Complaint alleges (i) unfair competition under California Business and Professions Code Section17200 et seq., (ii) misappropriation of trade secrets, (iii) breach of contract, (iv) violation of Penal Code Section 502 and (v) breach of duty of loyalty. KBIBiopharma Inc. is not named as defendant in the Second Amended Complaint. The Second Amended Complaint seeks injunctive relief and monetarydamages. Although Amgen has indicated it intends to seek a preliminary injunction, no motion has been filed yet. The court has set a trial date of January 22,2019.On May 10, 2017, Amgen Inc. and Amgen Manufacturing Inc. filed an action against us in the U.S. District Court for the District of Delaware (the“District Court”) alleging infringement of one or more claims of Amgen’s US patent 8,273,707 (the “ ‘707 patent”) under 35 U.S.C. § 271. The complaintseeks injunctive relief, monetary damages and attorney fees. On September 18, 2017, the court issued a scheduling order with a claim construction hearing setfor June 25, 2018, and a trial date of September 16, 2019. On December 7, 2017, the U.S. Magistrate Judge issued under seal a Report and Recommendationto the District Court recommending that the District Court grant, with prejudice, the Company’s pending motion to dismiss Amgen Inc. and AmgenManufacturing Inc.’s complaint for failure to state a claim pursuant to Federal Rule of Civil Procedure 12(b)(6). The District Court issued a publicly availableversion of the Magistrate Judge’s Report and Recommendation on January 11, 2018. The Company expects the District Court to decide in the first half of2018 whether to adopt the Magistrate Judge’s recommendation. On August 4, 2017, we filed in the USPTO a petition for IPR against U.S. patent 8,163,522 (the “ ‘522 patent”). The ‘522 patent, controlled by Amgen,is generally directed to a method for making etanercept, the pharmaceutically active component of Enbrel®. On September 6, 2017, we filed in the USPTO apetition for IPR against U.S. patent 8,063,182, (the “ ‘182 patent”). The ‘182 patent, controlled by Amgen, is generally directed to the etanercept protein, thepharmaceutically active component of Enbrel. The PTAB is expected to decide whether to institute our petition for IPR of the ‘522 patent by March 13,2018, and our petition for IPR of the ‘182 patent by March 15, 2018.We are not a party to any other material legal proceedings on the date of this report. Item 4.Mine Safety DisclosuresNot applicable. 60 PART IIItem 5.Market for Registrant’s Common Equity, Related Stockholder Matters, and Issuer Purchases of Equity SecuritiesMarket InformationOur common stock has been listed on The Nasdaq Global Market under the symbol “CHRS” since November 6, 2014. Prior to that there was no publictrading market for our common stock. The following table details the quarterly high and low sales prices for our common stock as reported by The NasdaqGlobal Market for CHRS from January 1, 2016 through December 31, 2017. Price Range Year ended December 31, 2017 High Low 1st Quarter $29.59 $19.65 2nd Quarter 24.70 13.55 3rd Quarter 15.18 10.80 4th Quarter 14.85 8.05 Year ended December 31, 2016 1st Quarter $22.57 $12.04 2nd Quarter 24.90 14.00 3rd Quarter 31.98 16.11 4th Quarter 31.48 22.92 On February 28, 2018, the closing sale price of our common stock was $9.90.Common StockholdersAs of February 28, 2018, there were approximately 46 stockholders of record of our common stock. The actual number of stockholders is greater thanthis number of record holders, and includes stockholders who are beneficial owners, but whose shares are held in street name by brokers and other nominees.This number of holders of record also does not include stockholders whose shares may be held in trust by other entities.Dividend PolicyWe have never declared or paid any cash dividends on our capital stock and do not anticipate paying any cash dividends in the foreseeable future.Payment of cash dividends, if any, in the future will be at the discretion of our board of directors and will depend on then-existing conditions, including ourfinancial condition, operating results, contractual restrictions, capital requirements, business prospects and other factors our board of directors may deemrelevant. In February 2016, we entered into senior convertible notes, which preclude the Company, directly or indirectly, to declare dividends so long as anyof the notes are outstanding.61 Stock Performance GraphThe following graph shows the total stockholder’s return on an investment of $100 in cash at market close on November 6, 2014 (the first day oftrading of our common stock), through December 31, 2017 for (i) our common stock, (ii) the Nasdaq Composite Index and (iii) the Nasdaq BiotechnologyIndex. Pursuant to applicable Securities and Exchange Commission 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 on the graph below is not necessarily indicative of futureperformance, and we do not make or endorse any predictions as to future stockholder return. 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. Recent Sales of Unregistered Equity SecuritiesFrom January 1, 2017 through December 31, 2017, there were no sales or issuances of unregistered securities that were not otherwise reported in aForm 10-Q or Form 8-K.Issuer Purchases of Equity SecuritiesWe did not repurchase any of our equity securities during the fiscal year ended December 31, 2017.62 Item 6.Selected Financial DataYou should read the following selected consolidated financial data together with the information under “Item 7. Management’s Discussion andAnalysis of Financial Condition and Results of Operations” and our consolidated financial statements and related notes included in this Form 10-K. Theconsolidated statement of operations data for each of the years ended December 31, 2017, 2016 and 2015, and the consolidated balance sheet data as ofDecember 31, 2017 and 2016 are derived from our audited consolidated financial statements included elsewhere in this Form 10-K. The selectedconsolidated statement of operations data for the year ended December 31, 2014 and 2013, and the consolidated balance sheet data as of December 31, 2015,2014 and 2013 are derived from our audited financial statements, which are not included in this Annual Report on Form 10-K.Consolidated Statement of Operations Data: Year Ended December 31, (in thousands, except share and per share data) 2017 2016 2015 2014 2013 Revenue: Collaboration and license revenue $1,556 $189,476 $30,041 $28,481 $726 Collaboration and license revenue - related party (1) — — — 1,893 2,025 Other revenue — 630 — 732 — Total revenue 1,556 190,106 30,041 31,106 2,751 Operating expenses: Research and development (2) 162,389 254,440 213,062 78,224 31,279 General and administrative (2) 71,303 51,597 36,046 17,564 7,465 Total operating expenses 233,692 306,037 249,108 95,788 38,744 Loss from operations (232,136) (115,931) (219,067) (64,682) (35,993)Interest expense (9,552) (7,980) (33) (3,900) (5,293)Other income (expense), net 3,402 (3,877) (4,838) (18,595) (12,349)Net loss (238,286) (127,788) (223,938) (87,177) (53,635)Net loss attributable to non-controlling interest 116 451 678 44 — Net loss attributable to Coherus $(238,170) $(127,337) $(223,260) $(87,133) $(53,635)Net loss per share attributable to Coherus, basic and diluted (3) $(4.48) $(3.04) $(6.01) $(10.64) $(16.10)Weighted-average number of shares used in computing net loss per share attributable to Coherus, basic and diluted (3) 53,133,620 41,912,300 37,122,008 8,186,529 3,332,020 (1)Represents revenue from Daiichi Sankyo through November 12, 2014 as a related party, a holder of more than 10% of our common stock for theperiods presented until the closing of our IPO.(2)Includes stock-based compensation expense as follows: Year Ended December 31, (in thousands) 2017 2016 2015 2014 2013 Research and development $15,104 $13,592 $8,038 $5,625 $682 General and administrative 18,293 13,829 8,683 5,437 1,363 Total stock-based compensation $33,397 $27,421 $16,721 $11,062 $2,045 (3)See Note 12 to our audited consolidated financial statements for an explanation of the method used to calculate basic and diluted net loss per shareattributable to Coherus and the weighted-average shares outstanding used to calculate the per share amounts.63 Consolidated Balance Sheet Data: December 31, (in thousands) 2017 2016 2015 2014 2013 Cash and cash equivalents $126,911 $124,947 $158,226 $150,392 $39,554 Working capital (deficit) 117,082 105,110 91,368 127,353 (8,024)Total assets 162,611 178,485 212,384 187,221 47,447 Convertible notes 76,206 75,192 — — 1,111 Convertible notes - related party 25,402 25,064 — — 3,092 Convertible preferred stock warrant liability — — — — 24,251 Convertible preferred stock — — — — 54,695 Accumulated deficit (775,492) (537,322) (409,985) (186,725) (99,592)Total stockholder's equity (deficit) 30,535 19,354 (6,929) 66,757 (97,077) 64 Item 7.Management’s Discussion and Analysis of Financial Condition and Results of OperationsThe following discussion should be read in conjunction with the consolidated financial statements and notes thereto included elsewhere in thisAnnual Report on Form-10-K (“Form 10-K”). This Form 10-K, including the following sections, contains forward-looking statements within the meaning ofthe federal securities laws. These statements are subject to risks and uncertainties that could cause actual results and events to differ materially from thoseexpressed or implied by such forward-looking statements. For a detailed discussion of these risks and uncertainties, see the “Risk Factors” section inItem 1A of this Form 10-K. We caution the reader not to place undue reliance on these forward-looking statements, which reflect management’s analysisonly as of the date of this Form 10-K. We undertake no obligation to update forward-looking statements, which reflect events or circumstances occurringafter the date of this Form 10-K.OverviewWe are a late-stage clinical biologics platform company focused on the global biosimilar market. Biosimilars are an emerging class of protein-basedtherapeutics with high similarity to approved originator products on the basis of various physicochemical and structural properties, as well as in terms ofsafety, purity and potency. Our goal is to become a global leader in the biosimilar market by leveraging our team’s collective expertise in key areas such asprocess science, analytical characterization, protein production and clinical-regulatory development.Our clinical-stage pipeline includes the following product candidates: •CHS-1701 (our pegfilgrastim (Neulasta) biosimilar candidate). Our long-acting G-CSF product candidate, CHS-1701, is being developed as apegfilgrastim (Neulasta) biosimilar. In August 2016, we filed a BLA, which was accepted by the FDA in October 2016. We received a CRLregarding this BLA from the FDA in June 2017. We currently plan to resubmit the BLA for CHS-1701 after our meeting with the FDA, whichoccurred in the middle of the first quarter of 2018. The EMA accepted our MAA for CHS-1701 in November 2016. •CHS-1420 (our adalimumab (Humira) biosimilar candidate). We are developing CHS-1420, an anti-TNF product candidate, as an adalimumab(Humira) biosimilar. In August 2016, we announced positive data from our Phase 3 study in psoriasis patients, followed by confirmatory 24-week results in January 2017, to support a BLA in the U.S. In January 2017, we initiated a PK study bridging CHS-1420 to Europeanmanufactured Humira and a PK study comparing U.S. Humira to E.U. Humira. We completed two PK bridging studies of CHS-1420, onecomparing the Phase 3 CHS-1420 material to U.S. manufactured adalimumab (Humira) in March 2017, and the other comparing CHS-1420 toEuropean manufactured Humira in August 2017. We anticipate additional investment in manufacturing activities will be required prior to anyBLA or MAA submissions. To enable competitive market entry, we plan to set the timing of the BLA filing in a manner to be able to launchCHS-1420 in the U.S. after the Humira formulation patents expire, which is currently projected to be in August 2022, or at the time such Humiraformulation patents are invalidated in the U.S. •CHS-0214 (our etanercept (Enbrel) biosimilar candidate). In July 2017, Daiichi Sankyo opted to discontinue the development of CHS-0214 inJapan. We consequently entered into a termination letter in August 2017 for our license agreement, memorandums of understanding and otheragreements with Daiichi Sankyo relating to CHS-0214 and we regained the development rights for CHS-0214 in Japan. We completed twoPhase 3 clinical trials with CHS-0214 in rheumatoid arthritis and psoriasis, which met their primary clinical endpoints in November 2015 andJanuary 2016, respectively. In October 2016, we completed two bridging Phase 1 PK studies of CHS-0214, one comparing CHS-0214 to Enbrelmanufactured in Europe, and the other providing additional relative bioavailability data for CHS-0214. We have deprioritized MAA activitiesrelative to other corporate objectives until such time we identify one or more commercialization partners for CHS-0214. We anticipateadditional investment in manufacturing activities will be required prior to any MAA or BLA submissions for CHS-0214. We have worldwidedevelopment and commercial rights to this product except for certain Caribbean and Latin American countries. However, the therapeuticprotein in etanercept is subject to certain originator-controlled U.S. patents expiring in 2028 and 2029. Assuming these patents are valid andenforceable until expiration, and that we are unable to obtain a license to them, we do not expect to commercialize CHS-0214 in the U.S. priorto their expiration or invalidation. •In June 2016, we reported positive Phase 2b efficacy data on CHS-131, an oral, small-molecule drug candidate, in relapsing remitting multiplesclerosis (“MS”). This six-month study demonstrated significant reduction in contrast-enhancing lesions meeting its primary endpoint. CHS-131 was generally well-tolerated and without evidence of immune suppression or the side-effects commonly seen in other oral MS therapies.We seek to partner CHS-131 for further development.Our preclinical-stage pipeline includes the following product candidates: •CHS-3351 (our ranibizumab (Lucentis) biosimilar candidate). We are prioritizing the development activities of CHS-3351, which is currentlyin pre-clinical development. •CHS-2020 (our aflibercept (Eylea) biosimilar candidate). 65 Our revenue to date has been generated primarily from collaboration and license payments pursuant to our license agreements with Daiichi Sankyoand Baxalta. We have not generated any commercial product revenue. We have incurred significant losses in the past and expect to incur significant andincreasing losses in the foreseeable future as we advance our product candidates into later stages of development and, if approved, commercialization. Ournet losses were $238.3 million, $127.8 million and $223.9 million for the years ended December 31, 2017, 2016 and 2015, respectively. As of December 31,2017, we had an accumulated deficit of $775.5 million.In February 2016, we issued and sold $100.0 million aggregate principal amount of our 8.2% senior convertible notes due 2022 (the “ConvertibleNotes”). These Convertible Notes require quarterly interest distributions at a fixed coupon rate of 8.2% until maturity, redemption or conversion, which willbe no later than March 31, 2022. If we fail to satisfy certain registration or reporting requirements, then additional interest will accrue on the ConvertibleNotes at a rate of up to 0.50% per annum in the aggregate. The holders of the Convertible Notes are Healthcare Royalty Partners III, L.P. and three of itsrelated entities, which hold $75.0 million in aggregate principal amount, and three related party investors, KKR Biosimilar L.P., which holds $20.0 million,MX II Associates LLC, which holds $4.0 million, and KMG Capital Partners, LLC, which holds $1.0 million. The Convertible Notes are convertible intoshares of common stock at an initial conversion rate of 44.7387 shares of common stock per $1,000 principal amount of the Convertible Notes (equivalent toa conversion price of approximately $22.35 per share of common stock, representing a 60% premium over the average last reported sale price of our commonstock over the 15 trading days preceding the date the Convertible Notes were issued), subject to adjustment in certain events. Upon conversion of theConvertible Notes by a holder, the holder will receive shares of our common stock, together, if applicable, with cash in lieu of any fractional share. AfterMarch 31, 2020, the full amount of the Convertible Notes not previously converted are redeemable for cash at our option if the last reported sale price pershare of our common stock exceeds 160% of the conversion price on 20 or more trading days during the 30 consecutive trading days preceding the date onwhich we send notice of such redemption to the holders of the Convertible Notes. At maturity or redemption, if not earlier converted, we will pay 109% of theprincipal amount of the Convertible Notes, together with accrued and unpaid interest, in cash.In October 2016, we entered into a sales agreement with Cowen and Company, LLC (“Cowen”), under which we may offer and sell our common stock,having aggregate gross proceeds of up to $100.0 million, from time to time through Cowen as our sales agent in our ATM Offering Program. In January andDecember 2017, we sold 925,999 shares of common stock at a weighted average price of $12.42 per share under the ATM Offering Program for aggregate netproceeds of $11.1 million. As of December 31, 2017, we had $32.0 million remaining under the ATM Offering Program. In January 2018, the Companyissued and sold 183,316 shares of common stock at a weighted average price of $9.38 per share through its ATM Offering Program and received total netproceeds of $1.7 million.In February 2017 and March 2017, we completed an underwritten public offering of 5,294,902 shares of common stock, at a price of $24.25 per share.We received net proceeds from the offering of $120.4 million, after deducting the underwriting discounts and commissions and offering expenses.In June 2017, we completed a restructuring plan and as a result, recorded aggregate restructuring charges of $3.6 million in our consolidated statementof operations in June 2017. The restructuring charges included one-time termination severance and other employee-related costs of $1.0 million and $1.1million in research and development and general and administrative expense in our consolidated statement of operations, respectively. Additionally, non-cash stock-based compensation expense related to the acceleration of stock options and the extension of post-termination stock option exercise periods of$0.3 million and $1.2 million were reflected in research and development and general and administrative expense in the consolidated statement ofoperations, respectively.In August 2017, we issued and sold an aggregate of 6,556,116 shares of common stock to V-Sciences Investments Pte Ltd, a private limited Singaporecompany (“Temasek”) in a private placement transaction at an offering price of $11.4397 per share for gross proceeds of $75.0 million. After deductingoffering expenses of $0.1 million, the net proceeds received were $74.9 million. Pursuant to the stock purchase agreement, Temasek may purchase additionalshares of common stock equal to gross proceeds of $75.0 million, subject to certain conditions. On September 22, 2017, we filed a registration statement withthe SEC registering the resale of the common stock sold and issued in the private placement transaction as of August 2017, and it was declared effective withthe SEC on October 16, 2017.In December 2017, the Company issued and sold an aggregate of 776,104 shares of common stock to our contract manufacturer KBI in a privateplacement transaction at an offering price of $8.7746 per share in exchange for the forgiveness of certain fees we incurred in connection with ourmanufacturing and supply agreement with KBI and advance reservation fee for future manufacturing service for the production of CHS-1701. On January 25,2018, we filed a registration statement with the SEC registering the resale of the common stock sold and issued in the private placement transaction as ofDecember 2017.Financial Operations OverviewRevenueWe have not generated any revenue from commercial product sales to date. Our revenue has been generated from license and collaborationagreements, under which we received license fees, milestone payments and other contingent payments.66 Research and Development ExpenseResearch and development expense represents costs incurred to conduct research, such as the discovery and development of our product candidates.We recognize all research and development costs as they are incurred. We currently track only the external research and development costs incurred for eachof our product candidates. Our external research and development expense consists primarily of: •expense incurred under agreements with consultants, third-party contract research organizations (“CROs”), and investigative sites where asubstantial portion of our preclinical studies and all of our clinical trials are conducted; •costs of acquiring originator comparator materials and manufacturing preclinical study and clinical trial supplies and other materials fromcontract manufacturing organizations (“CMOs”), and related costs associated with release and stability testing; and •costs associated with manufacturing process development activities.Internal costs are associated with activities performed by our research and development organization and generally benefit multiple programs. Thesecosts are not separately allocated by product candidate. Unallocated, internal research and development costs consist primarily of: •personnel-related expense, which include salaries, benefits and stock-based compensation; and •facilities and other allocated expense, which include direct and allocated expense for rent and maintenance of facilities, depreciation andamortization of leasehold improvements and equipment and laboratory and other supplies.The largest component of our total operating expense has historically been our investment in research and development activities, including theclinical development and manufacturing process development of our product candidates. We expect our research and development expense to be similar orslightly lower in 2018 as our late-stage product candidates work their way through the regulatory approval process and we prepare for commercialization.Also, if we receive regulatory approval, a substantial portion of our future manufacturing costs will be capitalized as inventory and subsequently expensed ascosts of goods sold when the inventory is sold.We consider regulatory approval of product candidates to be uncertain, and any products manufactured prior to regulatory approval may not be soldunless regulatory approval is obtained. We expense manufacturing costs for product candidates incurred prior to regulatory approval as research anddevelopment expense as we incur them. If and when regulatory approval of a product candidate is obtained, we will begin capitalizing manufacturing costsrelated to the approved product into inventory.The process of conducting the necessary clinical research to obtain regulatory approval is costly and time consuming. Furthermore, in the past wehave entered into collaborations with third parties to participate in the development and commercialization of our product candidates, and we may enter intoadditional collaborations in the future. In situations in which third parties have substantial influence over the development activities for product candidates,the estimated completion dates are not fully under our control. For example, our partners in licensed territories may exert considerable influence on theregulatory filing process globally. Therefore, we cannot forecast with any degree of certainty the duration and completion costs of these or other current orfuture clinical trials of our product candidates. We may never succeed in achieving regulatory approval for any of our product candidates. In addition, wemay enter into other collaboration arrangements for our other product candidates, which could affect our development plans or capital requirements.The following table summarizes our research and development expense incurred during the respective periods: Phase of Development as of Year ended December 31, December 31, 2017 2017 2016 2015 (in thousands) External costs incurred by product candidate: CHS-1420 Completed $52,275 $70,276 $37,611 CHS-1701 BLA Stage 31,247 32,934 46,872 CHS-0214 (1) Completed 17,596 77,799 83,377 CHS-131 Phase 2 2,052 3,558 3,694 Other research and development expenses (2) 4,878 17,608 5,311 Internal costs 54,341 52,265 36,197 Total research and development expenses (1) $162,389 $254,440 $213,062 (1)Our research and development expense has been reduced by reimbursements of certain research and development expense pursuant to the cost-sharingprovision of our licensing agreement with Daiichi Sankyo. Reimbursement of research and development expense under the Baxalta licensingagreement was recognized as revenue pursuant to the revenue recognition accounting policy applicable to that agreement.(2)Amount consists of costs for other pipeline candidates.67 General and Administrative ExpenseGeneral and administrative expense consists primarily of personnel costs, allocated facilities costs and other expense for outside professional services,including legal, human resources, audit and accounting services. Personnel costs consist of salaries, benefits and stock-based compensation. If any of ourproduct candidates receive regulatory approval for commercial sale, we expect to incur significant additional expense associated with the establishment ofour sales force in the U.S., as we undertake commercial infrastructure initiatives to implement information technology systems, quality and compliancesystems and personnel support for the commercial organization.Interest ExpenseInterest expense consists primarily of interest incurred on our outstanding indebtedness and non-cash interest related to the amortization of debtdiscount and debt issuance costs associated with our various debt agreements outstanding during the years ended December 31, 2017 and 2016.Other Income (Expense), NetOther income (expense), net for the years ended December 31, 2017 and 2016, consists primarily of gains and losses resulting from the remeasurementof our contingent consideration, interest earned from our investments in marketable securities and foreign exchange gains and losses resulting from currencyfluctuations. In March 2015, the contingent consideration related to the Earn-Out Payment was settled for shares and cash, and the contingent liability relatedto the Earn-Out Payment was reclassified to equity. As such, we ceased recording adjustments to reflect the remeasurement of the Earn-Out Payment to fairvalue. We continue to record adjustments to the estimated fair value of our contingent consideration related to the Compound Transaction Payment until thecontingency settles or expires.Critical Accounting Policies and EstimatesOur management’s discussion and analysis of our financial condition and results of operations is based on our consolidated financial statements,which have been prepared in accordance with United States generally accepted accounting principles (“U.S. GAAP”). The preparation of these consolidatedfinancial statements requires us to make estimates and assumptions that affect the reported amounts of assets and liabilities and the disclosure of contingentassets and liabilities at the date of the consolidated financial statements, as well as the reported revenue generated and expense incurred during the reportingperiods. As appropriate, we periodically evaluate our critical accounting policies and estimates. Our estimates are based on our historical experience and onvarious other factors that we believe to be reasonable under the circumstances. These estimates form the basis for making judgments about the carrying valueof assets and liabilities that are not readily apparent from other sources. Accounting estimates and judgements are inherently uncertain and the actual resultscould differ from these estimates.Revenue RecognitionWe recognize revenue when persuasive evidence of an arrangement exists; transfer of technology has been completed, services have been performedor products have been delivered; the fee is fixed and determinable; and collection is reasonably assured.Our collaboration and license agreements may provide for reimbursement by our collaborators of a portion of our research and development expense,and we make judgments that affect how these reimbursements are recorded. In collaborations where we and our partner are actively and jointly engaged in theresearch activities and for which both parties are sharing costs, amounts reimbursed by our partner are recognized as a reduction of research and developmentexpense. For example, prior to the termination of the Daiichi Sankyo Agreement, Daiichi Sankyo reimbursed certain of our research and development costs inquarterly advance payments pursuant to the cost-sharing provision of our collaboration and license agreement. Because Daiichi Sankyo was an activeparticipant in the research and development activities, we accounted for these reimbursements as reductions to our research and development expense whenthe applicable research and development activity had been performed. Under our prior agreement with Baxalta, on the other hand, we recognizedreimbursement of our research and development expense thereunder as revenue because Baxalta is not actively participating in research and developmentactivities.For revenue agreements with multiple-elements, we identify the deliverables included within the agreement and evaluate which deliverables mayrepresent separate units of accounting based on the achievement of certain criteria, including whether the deliverable has stand-alone value to thecollaborator. Upfront payments received in connection with licenses of our technology rights are deferred if facts and circumstances dictate that the licensedoes not have stand-alone value and are recognized as license revenue over the estimated period of performance that is generally consistent with the terms ofthe research and development obligations contained in the specific collaboration and license agreement. We periodically review our estimated periods ofperformance based on the progress under each arrangement and account for the impact of any changes in estimated periods of performance on a prospectivebasis.At the inception of each agreement that includes milestone payments, we evaluate whether each milestone is substantive and at risk to both parties onthe basis of the contingent nature of the milestone. We evaluate factors such as the scientific, regulatory, commercial and other risks that must be overcome toachieve the respective milestone, the level of effort and investment required to achieve the respective milestone and whether the milestone consideration isreasonable relative to all deliverables and payment terms in the arrangement in making68 this assessment. Non-refundable payments that are contingent upon achievement of a substantive milestone are recognized in their entirety in the period inwhich the milestone is achieved, assuming all other revenue recognition criteria are met. Other contingent payments in which a portion of the milestoneconsideration is refundable or adjusts based on future performance or non-performance (e.g., through a penalty or claw-back provision) are not considered torelate solely to past performance, and therefore, not considered substantive. Amounts that are not recognized as revenue due to the uncertainty as to whetherthey will be retained or because they are expected to be refunded are recorded as a liability. We recognize non-substantive milestone payments over theremaining estimated period of performance once the milestone is achieved.Contingent payments associated with the achievement of specific objectives in certain contracts, which are not considered substantive because we donot contribute effort to the achievement of such milestones, are recognized as revenue upon achievement of the objective, as long as there are no undeliveredelements remaining and no continuing performance obligations by us, assuming all other revenue recognition criteria are met.We also generate revenue from a Russian government contract. The government contract is an agreement that provides us with payments for certaintypes of expenditures in return for research and development activities over a contractually defined period. Revenue from the government contract isrecognized as other revenue in the consolidated statement of operations in the period during which the related costs are incurred and the related services arerendered, provided that the funds received are not refundable and applicable conditions under the government contract have been met. Funds received inadvance are recorded as deferred revenue.Research and Development Expense and Related AccrualsResearch and development costs are charged to expense as incurred. Research and development expense includes, among other costs, salaries andother personnel-related costs, consultant fees, preclinical costs, cost to manufacture drug candidates, clinical trial costs and supplies, laboratory supply costsand facility-related costs. Costs incurred under agreements with third parties are charged to expense as incurred in accordance with the specific contractualperformance terms of such agreements. Costs of third parties include costs associated with manufacturing drug candidates and preclinical and clinical supportactivities. In certain cases, amounts received as reimbursement of research and development activities from our collaborators are recognized as a reduction inresearch and development expense when we engage in a research and development project jointly with another party, with both parties incurring costs whileactively participating in project activities and both parties sharing costs and potential benefits of the arrangement. Advance payments for goods or services tobe received in the future to be utilized in research and development activities are deferred and capitalized. The capitalized amounts are expensed as therelated goods are delivered or the services are rendered.As part of the process of preparing financial statements, we are required to estimate and accrue expenses, the largest of which is research anddevelopment expense. This process involves the following: •communicating with appropriate internal personnel to identify services that have been performed on our behalf and estimating the associatedcost incurred for the service when we have not yet been invoiced or otherwise notified of actual cost; •estimating and accruing expenses in our consolidated financial statements as of each balance sheet date based on facts and circumstancesknown to us at the time; and •periodically confirming the accuracy of our estimates with service providers and making adjustments, if necessary.Examples of estimated research and development expenses that we accrue include: •fees paid to CROs in connection with preclinical and toxicology studies and clinical trials; •fees paid to investigative sites in connection with clinical trials; •fees paid to CMOs in connection with the production of clinical trial materials; and •professional service fees for consulting and related services.We base our expense accruals related to clinical trials on our estimates of the services rendered and efforts expended pursuant to contracts withmultiple research institutions and CROs that conduct and manage clinical trials on our behalf. The financial terms of these agreements vary from contract tocontract and may result in uneven payment flows. Payments under some of these contracts depend on factors, such as the successful enrollment of patientsand the completion of clinical trial milestones. In accruing service fees, we estimate the time-period over which the services are expected to be incurred andthe level of effort to be expended in each period. If we are unable to identify costs associated with activities that have been initiated or if we underestimate oroverestimate the amount of services performed or the costs of these services, our actual expenses could differ from our estimates.Accounting estimates and judgements related to clinical trials are inherently uncertain. We base our estimates on the best information available at thetime. As appropriate, estimates are assessed periodically and updated to reflect current information and any changes will generally be reflected in the periodfirst identified.69 We consider regulatory approval of our product candidates to be uncertain, and product manufactured prior to regulatory approval may not be soldunless regulatory approval is obtained. We expense manufacturing costs for product candidates incurred prior to regulatory approval as research anddevelopment expenses as we incur them. If and when regulatory approval of a product is obtained, we will begin capitalizing manufacturing costs related tothe approved product into inventory.Derivative LiabilitiesThere were two contingent payments associated with the acquisition of InteKrin: (i) the completion of the first dosing of a human subject in the firstPhase 2 clinical trial for InteKrin (the “Earn-Out Payment”) and (ii) upon the execution of any license, sublicense, development, collaboration, joint venture,partnering or similar agreement between us and the third-party (the “Compound Transaction Payment”). The contingent consideration is accounted for as aliability and remeasured to estimated fair value as of each balance sheet date and the related remeasurement adjustment is recognized as other expense, net inthe consolidated statement of operations through the date of settlement. We determined the fair value of the remaining contingent consideration associatedwith the Compound Transaction Payment using a probability-weighted discounted cash flow approach. A probability-weighted value was determined bysumming the probability of achieving the contingent payment threshold by the respective contingent payment. The expected cash flows were discounted at arate selected to capture the risk of achieving the contingent payment thresholds and earning the contingent payment. This risk is comprised of InteKrin’scontinued development, a specific risk factor associated with meeting the contingent consideration threshold and related payout and counterparty riskassociated with the payment of the contingent consideration.Stock-Based CompensationCommon Stock OptionsStock-based compensation expense related to stock options granted to employees is measured at the date of grant, based on the estimated fair value ofthe award and recognized as an expense over the employee’s requisite service period on a straight-line basis. We estimate the grant date fair value and theresulting stock-based compensation expense using the Black-Scholes option-pricing model.We account for stock-based compensation arrangements with non-employees using a fair value approach. The fair value of these options is measuredusing the Black-Scholes option pricing model reflecting the same assumptions as applied to employee options in each of the reported periods, other than theexpected life, which is assumed to be the remaining contractual life of the option. The fair value of the unvested options under these arrangements is subjectto remeasurement over the vesting terms as earned.We recorded non-cash stock-based compensation expense related to options granted to employees and non-employees of $33.4 million, $27.4 millionand $16.7 million for the years ended December 31, 2017, 2016 and 2015, respectively.The Black-Scholes option-pricing model requires the use of highly subjective assumptions, which determine the fair value of stock-based awards.These assumptions include: •Expected term. The expected term represents the period that stock-based awards are expected to be outstanding and is based on the options’vesting term, contractual term and industry peers. We do not have sufficient historical information to develop reasonable expectations aboutfuture exercise patterns and post-vesting employment termination behavior. •Expected volatility. We use an average historical stock price volatility of industry peers to be representative of future stock price volatility aswe do not have sufficient trading history for our common stock. •Risk-free interest rate. The risk free interest rate is based on the U.S. Treasury constant maturity rate in effect at the time of the grant for periodscorresponding with the expected term. •Expected dividends. We have not paid and do not anticipate paying any dividends in the near future, and therefore we used an expecteddividend yield of zero in the valuation model.In addition to the Black-Scholes assumptions, we adopted the ASU No. 2016-09, Compensation-Stock Compensation: Improvements to EmployeeShare-Based Payment, electing to account for the forfeitures as they occur as of January 1, 2017.We estimate the fair value of restricted stock units (“RSUs”), based on the fair market value of the underlying stock on the dates of grant. Theestimated fair value of RSUs is expensed over the vesting period.We expect to continue to grant stock options and awards in the future, and to the extent that we do, actual stock-based compensation expenserecognized in future periods will likely increase.Income TaxesWe file U.S. federal and state income tax with varying statutes of limitations. The tax years from 2011 forward remain open to examination due to thecarryover of unused net operating losses and tax credits. To date, we have not been audited by the Internal Revenue Service or any state income tax authority.70 We use the liability method of accounting for income taxes. Under this method, deferred tax assets and liabilities are determined based on thedifferences between the financial reporting and the tax bases of assets and liabilities and are measured using the enacted tax rates and laws that will be ineffect when the differences are expected to reverse. We assess the likelihood that the resulting deferred tax assets will be realized. A valuation allowance isprovided when it is more likely than not that some portion or all of a deferred tax asset will not be realized.On December 22, 2017, the Tax Cuts and Jobs Act of 2017, or the Tax Act, was signed into law. The Tax Act reduces the corporate tax rate from a topmarginal rate of 35% to a flat rate of 21%. Although the Tax Act is generally effective on January 1, 2018, GAAP requires recognition of the tax effects ofnew legislation during the reporting period that includes the enactment date, which was December 22, 2017. Because of the impacts of the Tax Act, the SECissued Staff Accounting Bulletin No. 118 Income Tax Accounting Implications of the Tax Cuts and Jobs Act (SAB 118) that allows us to record provisionalamounts for those impacts, with the requirement that the accounting be completed in a period not to exceed one year from the date of enactment. Since theTax Act was passed late in the fourth quarter of 2017, and ongoing guidance and accounting interpretation are expected over the next 12 months, weconsider the accounting for the deferred tax re-measurement to be provisional. The primary impact of the Tax Act resulted from the re-measurement ofdeferred tax assets and liabilities due to the change in the corporate tax rate (“Corporate Tax Rate Change”), reducing our deferred tax assets with acorresponding reduction in our valuation allowance, which had no effect on our effective tax rate. Additional work will be necessary for a more detailedanalysis of our deferred tax assets and liabilities as well as potential correlative adjustments. We do not expect any material subsequent adjustments to theseamounts. Adjustments, if any, are not expected to have any impact to our results of operations due to our loss position and valuation allowance.As of December 31, 2017, our total net deferred tax assets, net of gross deferred tax liabilities, were $182.4 million. Due to our lack of earnings history,the net deferred tax assets have been fully offset by a valuation allowance. The deferred tax assets were primarily comprised of federal and state tax netoperating losses and tax credit carryforwards. Utilization of the net operating loss and tax credit carryforwards may be subject to an annual limitation due tohistorical or future ownership percentage change rules provided by the Internal Review Code of 1986, and similar state provisions.Recent Accounting PronouncementsIn May 2014, the FASB issued ASU 2014-09, Revenue from Contracts with Customers (Topic 606), which amends the existing accounting standardsfor revenue recognition. Subsequently, the FASB has issued the following standards related to ASU 2014-09: ASU No. 2016-08, Revenue from Contractswith Customers (Topic 606): Principal versus Agent Considerations; ASU No. 2016-10, Revenue from Contracts with Customers (Topic 606): IdentifyingPerformance Obligations and Licensing; and ASU No. 2016-12, Revenue from Contracts with Customers (Topic 606): Narrow-Scope Improvements andPractical Expedients. We are required to adopt ASU 2016-08, ASU 2016-10 and ASU 2016-12 with ASU 2014-09 (collectively, the “new revenue standard”)which is effective for annual and interim periods beginning after December 15, 2017 and early adoption is permitted.The new revenue standard permits two methods of adoption: retrospectively to each prior reporting period presented (full retrospective method), orretrospectively with the cumulative effect of initially applying the guidance recognized at the date of initial application (the modified retrospective method).We plan to adopt the standard in the first quarter of 2018 using the modified retrospective method. We have evaluated our contracts and assessed that thelicense agreement with Daiichi Sankyo is the only contract that would be impacted by the new revenue standard. As a result of Daiichi Sankyo’s decision inJuly 2017 to opt-out of its development of CHS-0214 in Japan, we recognized the remaining deferred revenue under this license agreement during the secondquarter of 2017. Therefore, we concluded that the adoption of this standard will not have a material impact on our consolidated financial statements andrelated disclosures.In January 2016, the FASB issued ASU No. 2016-01, Recognition and Measurement of Financial Assets and Financial Liabilities. ASU 2016-01makes amendments to the classification and measurement of financial instruments and revises the accounting related to: (1) the classification andmeasurement of investments in equity securities, and (2) the presentation of certain fair value changes for financial liabilities measured at fair value. Inaddition, the update also amends certain disclosure requirements associated with the fair value of financial instruments. ASU 2016-01 is effective for ourinterim and annual reporting periods during the year ending December 31, 2018, and all annual and interim reporting periods thereafter. Early adoptions ofcertain amendments within the update are permitted. We concluded that the adoption of ASU 2016-01 will not have a material impact on our consolidatedfinancial statements and related disclosures.71 In February 2016, the FASB issued ASU No. 2016-02, Leases. ASU 2016-02 is aimed at making leasing activities more transparent and comparable,and requires substantially that all leases be recognized by lessees on their balance sheet as a right-of-use asset and corresponding lease liability, includingleases currently accounted for as operating leases. ASU 2016-02 is effective for our interim and annual reporting periods during the year ending December 31,2019, and all annual and interim reporting periods thereafter. Early adoption is permitted. We are currently evaluating the impact that the adoption of ASU2016-02 will have on our condensed consolidated financial statements and related disclosures. We plan to adopt this new standard prospectively on January1, 2019 and are evaluating the impact of the adoption of this standard on our unaudited condensed financial statements. We expect that it will increase ourlease assets and correspondingly increase our lease liabilities. We are unable to quantify the impact at this time, as the ultimate impact of adopting this newstandard will depend on the total amount of the lease commitments as of the adoption date.In March 2016, the FASB issued ASU No. 2016-09, Compensation-Stock Compensation: Improvements to Employee Share-Based PaymentAccounting. ASU 2016-09 simplifies several aspects of the accounting for share-based payment award transactions, including: (1) the income taxconsequences, (2) classification of awards as either equity or liabilities, and (3) classification on the statement of cash flows. ASU 2016-09 is effective for ourinterim and annual reporting periods beginning on January 1, 2017, and all annual and interim reporting periods thereafter. We adopted ASU 2016-09 onJanuary 1, 2017. Under this guidance, on a prospective basis, companies will no longer record excess tax benefits and certain tax deficiencies in additionalpaid-in capital. Instead, they will record all excess tax benefits and tax deficiencies as income tax expense or benefit in the statement of operations. Inaddition, the guidance eliminates the requirement that excess tax benefits be realized before companies can recognize them. The standard requires acumulative-effect adjustment for previously unrecognized excess tax benefits in opening retained earnings in the annual period of adoption. As of January 1,2017, we had a previously unrecognized deferred tax asset of $10.8 million relating to the excess tax benefits. Upon adoption, we recognized this excess taxbenefit as a deferred tax asset with a corresponding increase to our deferred tax asset valuation allowance. Additionally, as provided for under this newguidance, we elected to account for forfeitures as they occur. The adoption of this standard did not have a material impact on our financial statements.In August 2016, the FASB issued ASU No. 2016-15, Statement of Cash Flows: Classification of Certain Cash Receipts and Cash Payments (ASU2016-15). The amendment to this update addresses eight specific cash flow issues with the objective of reducing the existing diversity in practice. ASU 2016-15 is effective for our interim and annual reporting periods during the year ending December 31, 2018, and all annual and interim reporting periodsthereafter. Early adoption is permitted. We are currently evaluating the impact that the adoption of ASU 2016-15 will have on our condensed consolidatedfinancial statements and related disclosures. We expect that it will only affect the cash flow presentation of Intekrin contingent consideration related tocompound transaction payment (see Note 3) when it ultimately settles.In October 2016, the FASB issued ASU No. 2016-16, Income Taxes: Intra-Entity Transfers of Assets Other Than Inventory (ASU 2016-16). This updateis to improve the accounting for the income tax consequences of intra-entity transfers of assets other than inventory. ASU 2016-16 amends the guidance torecognize the income tax consequences of an intra-entity transfer of an asset other than inventory when the transfer occurs. Consequently, the amendments inthis update eliminate the exception for an intra-entity transfer of an asset other than inventory. The amendments in this update do not include new disclosurerequirements; however, existing disclosure requirements might be applicable when accounting for the current and deferred income taxes for an intra-entitytransfer of an asset other than inventory. ASU 2016-16 is effective for our interim and annual reporting periods during the year ending December 31, 2018,and all annual and interim reporting periods thereafter. Early adoption is permitted. We do not expect that the adoption of ASU 2016-16 will have a materialeffect on our condensed consolidated financial statements and related disclosures.In November 2016, the FASB issued ASU 2016-18, Statement of Cash Flows (Topic 230): Restricted Cash — a consensus of the FASB EmergingIssues Task Force, (ASU 2016-18). The purpose of ASU 2016-18 is to provide guidance on the presentation of restricted cash or restricted cash equivalents inthe statement of cash flows. Specifically, ASU 2016-18 requires companies to include amounts generally described as restricted cash and restricted cashequivalents in cash and cash equivalents when reconciling beginning-of-period and end-of-period total amounts shown on the statement of cash flows. ASU2016-18 is effective for the Company’s interim and annual reporting periods during the year ending December 31, 2018, and all annual and interim periodsthereafter. The amendments in ASU 2016-18 should be applied using a retrospective transition method to each period presented. Early adoption is permitted.We do not expect that the adoption of ASU 2016-18 will have a material effect on our consolidated financial statements and related disclosures.In January 2017, the FASB issued ASU No. 2017-04, Intangibles-Goodwill and Other: Simplifying the Test for Goodwill Impairment (ASU 2017-04),which is to simplify the current requirements for testing goodwill for impairment by eliminating the second step of the two-step impairment test to measurethe amount of an impairment loss. ASU 2017-04 is effective for our interim and annual reporting periods during the year ending December 31, 2020, and allannual and interim reporting periods thereafter. Early adoption is permitted. We are currently evaluating the impact that the adoption of ASU 2017-04 willhave on our condensed consolidated financial statements and related disclosures.We have reviewed other recent accounting pronouncements and concluded they are either not applicable to the business or that no material effect isexpected on our condensed consolidated financial statements as a result of future adoptions.72 Results of OperationsComparison of Years Ended December 31, 2017, 2016 and 2015Revenue Year Ended December 31, 2017 2016 2015 2017 vs 2016Change 2016 vs 2015Change (in thousands) (in thousands) Revenue: Collaboration and license revenue $1,556 $189,476 $30,041 $(187,920) $159,435 Other revenue — 630 — (630) 630 Total revenue $1,556 $190,106 $30,041 $(188,550) $160,065 Total revenue for the year ended December 31, 2017 was $1.6 million compared to $190.1 million for the same period in 2016, a decrease of $188.6million. The decrease was primarily due to revenue recognized in connection with the termination of the Baxalta Agreement in 2016, partially offset by therecognition of the remaining deferred revenue as a result of Daiichi Sankyo’s decision to opt-out of the development of CHS-0214 in Japan in the secondquarter of 2017.In June 2016, Shire completed its acquisition of Baxalta and as part of its strategic portfolio review issued a termination notice of the BaxaltaAgreement in its entirety on September 26, 2016. As such, we regained from Shire all development and commercial rights previously licensed under CHS-0214 to Baxalta for Europe, Canada, Brazil, the Middle East and other territories, and recognized the outstanding balances of deferred revenue andcontingent liability to collaborator related to the Baxalta Agreement of $85.8 million and $76.7 million, respectively, as revenue in 2016.Total revenue for the year ended December 31, 2016 was $190.1 million compared to $30.0 million for the same period in 2015, an increase of $160.1million. The increase was primarily due to revenue recognized in connection with the termination of the Baxalta Agreement.Research and Development Expense Year Ended December 31, 2017 2016 2015 2017 vs 2016Change 2016 vs 2015Change (in thousands) (in thousands) Research and development $162,389 $254,440 $213,062 $(92,051) $41,378 Research and development expense for the year ended December 31, 2017 was $162.4 million compared to $254.4 million for the same period in2016, a decrease of $92.1 million. The decrease in research and development expense was primarily due to: •a decrease of $60.2 million in costs incurred for CHS-0214 due to fully enrolled and completed Phase 3 clinical studies during 2016, whichalso includes a decrease of $5.5 million in cost reimbursements from Daiichi Sankyo that was recognized as a reduction of research anddevelopment expense; •a decrease of $18.0 million in costs incurred for CHS-1420 as a result of completing our Phase 3 trial for CHS-1420 in the first quarter of 2017; •a decrease of $14.2 million related to the development of CHS-131 and other biosimilar product candidates as we prioritized and focus ourresources primarily on advancing CHS-1701, our lead product candidate; •a decrease of $1.7 million in costs incurred for CHS-1701 as we completed the clinical development of CHS-1701 in 2016; and •a decrease of $0.5 million in personnel, consulting and other related expenses.73 The decrease in research and development expense for the year ended December 31, 2017 was partially offset by: •an increase of $1.5 million in stock-based compensation due to the acceleration of stock options and the extension of post-termination stockoption exercise periods as a result of our restructuring in June 2017, additional stock options granted since the end of 2016, and an increase inheadcount in the six month period before the restructuring plan was completed in June 2017; and •an increase of $1.0 million in facilities, supplies and materials and other infrastructure to support our research and development growth prior tothe implementation of the restructuring plan in June 2017.Research and development expense for the year ended December 31, 2016 was $254.4 million compared to $213.1 million for the same period in2015, an increase of $41.4 million. The increase in research and development expense was primarily due to: •an increase of $32.7 million to start and enroll subjects into a Phase 3 clinical study in psoriasis for CHS-1420; •an increase of $12.3 million to advance other product candidates in our pipeline; •an increase of $9.2 million in personnel, consulting and other related expenses and $5.5 million in stock-based compensation due to a netincrease of 31 employees, annual salary increases and additional stock options granted since the end of 2015; and •an increase of $1.3 million in facilities, supplies and materials and other infrastructure to support our research and development growth.The increase in research and development expense for the year ended December 31, 2016 was partially offset by: •a decrease of $13.9 million related to BLA-enabling studies for CHS-1701 due to fully enrolled and completed clinical studies during 2016;and •a decrease of $5.6 million in costs incurred for CHS-0214 due to fully enrolled and completed Phase 3 clinical studies during 2016, whichincludes a decrease of $6.3 million in cost reimbursements from Daiichi Sankyo that was recognized as a reduction of research anddevelopment expense.We expect our research and development expense to be similar or slightly lower in 2018 as our late-stage product candidates work through theregulatory approval process and we prepare for commercialization.General and Administrative Expense Year Ended December 31, 2017 2016 2015 2017 vs 2016Change 2016 vs 2015Change (in thousands) (in thousands) General and administrative $71,303 $51,597 $36,046 $19,706 $15,551 General and administrative expense for the year ended December 31, 2017 was $71.3 million compared to $51.6 million for the same period in 2016,an increase of $19.7 million. The increase in general and administrative expense was primarily due to: •an increase of $5.8 million in personnel, consulting and other related expenses due to an increase in headcount in the first six months of 2017as we expanded our pre-commercial activities before the restructuring plan was implemented in June 2017; •an increase of $4.5 million for stock-based compensation due to the acceleration of stock options and the extension of post-termination stockoption exercise periods as a result of our restructuring in June 2017, additional stock options granted since the end of 2016 and an increase inheadcount for the six month period before the restructuring plan was implemented in June 2017; •an increase of $8.6 million for legal and other professional services as we implemented and supported our legal strategies; and •an increase of $0.8 million for facilities, supplies and materials to support our growing infrastructure as we expanded our pre-commercialactivities prior to the implementation of our restructuring plan in June 2017.General and administrative expense for the year ended December 31, 2016 was $51.6 million compared to $36.0 million for the same period in 2015,an increase of $15.6 million. The increase in general and administrative expense was primarily due to: •an increase of $5.9 million in personnel, consulting and other related expenses; •an increase of $5.2 million in stock-based compensation as a result of an increase in headcount, and costs associated with additional stockoptions granted during 2016; and •an increase of $4.5 million in legal, accounting, and other professional services.We expect general and administrative expense to be similar in the first half of 2018 and to increase in the second half of 2018 as we plan to re-engagein pre-commercial activities in the second half of 2018.74 Interest Expense Year Ended December 31, 2017 2016 2015 2017 vs 2016Change 2016 vs 2015Change (in thousands) (in thousands) Interest expense $9,552 $7,980 $33 $1,572 $7,947 Interest expense for the year ended December 31, 2017 was $9.6 million compared to $8.0 million for the same period in 2016, an increase of $1.6million. Interest expense for the year ended December 31, 2016 was $8.0 million compared to $33,000 during the same period in 2015, an increase of $7.9million. The increase in both years was due to the recognition of interest expense and non-cash accretion of the debt discount and debt issuance costs relatedto the Convertible Notes issued on February 29, 2016.Other Income (Expense), Net Year Ended December 31, 2017 2016 2015 2017 vs 2016Change 2016 vs 2015Change (in thousands) (in thousands) Other income (expense), net $3,402 $(3,877) $(4,838) $7,279 $961 Other income (expense), net for the year ended December 31, 2017 was a gain of $3.4 million compared to a loss of $3.9 million for the same period in2016, an increase gain of $7.3 million. The gain of $3.4 million in 2017 was primarily due to a decrease in the fair value of our contingent considerationrelated to the compound transaction payment associated with our InteKrin acquisition during the second quarter of 2017 as a result of reducing the estimatedlicensing, collaboration or similar agreement value by 32%. The loss of $3.9 million in 2016 was primarily due to an increase in the fair value of ourcontingent consideration driven by our positive Phase 2b data on CHS-131, and as such, the probability of occurrence increased from 10% to 33%.Other income (expense), net for the year ended December 31, 2016 was a loss of $3.9 million compared to a loss of $4.8 million for the same period in2015, a decrease of $1.0 million. The decrease was primarily due to the change of $0.3 million in fair value of our contingent consideration related to theInteKrin acquisition during 2016 when compared to 2015, a net expense decrease of $0.3 million due to foreign exchange fluctuations, and the increase of$0.3 million from interest earned on our cash balances.Liquidity and Capital ResourcesDue to our significant research and development expenditures, we have generated significant operating losses since our inception. We have fundedour operations primarily through the issuance of debt, equity financing and payments received under our collaboration and license agreements.In February 2016, we issued and sold $100.0 million aggregate principal amount of our Convertible Notes for which we received net cash of $99.2million, net of debt discounts and issuance costs. In May and June 2016, we issued and sold 4,025,000 shares of our common stock at $18.00 per share for netproceeds of $69.0 million. In October 2016, we entered into a sales agreement with Cowen, under which we may offer and sell our common stock, havingaggregate gross proceeds of up to $100.0 million, from time to time through Cowen as our sales agent in our ATM Offering Program. In January andDecember 2017, we issued and sold an aggregate of 925,999 shares of common stock at a weighted average price of $12.42 per share under the ATM OfferingProgram for aggregate net proceeds of $11.1 million. As of December 31, 2017, we had $32.0 million remaining under the ATM Offering Program. In January2018, the Company issued and sold 183,316 shares of common stock at a weighted average price of $9.38 per share through its ATM Offering Program andreceived total net proceeds of $1.7 million.In February 2017 and March 2017, we issued and sold an aggregate of 5,294,902 shares of common stock at $24.25 per share from our underwrittenfollow-on offering for net proceeds of $120.4 million. In August 2017, we issued and sold 6,556,116 shares of common stock at approximately $11.4397 pershare in a private offering for net proceeds of $74.9 million. In December 2017, we issued and sold an aggregate of 776,104 shares of common stock atapproximately $8.7746 per share in a private offering in exchange for the forgiveness of certain fees we incurred in connection with our manufacturing andsupply agreement with KBI and advance reservation fee for future manufacturing service for the production of CHS-1701.In March 2017, we purchased investments in marketable securities in accordance with our investment policy in order to obtain interest income on ourcash balances. As of December 31, 2017, we did not have any investments in marketable securities.As of December 31, 2017, we had an accumulated deficit of $775.5 million and cash and cash equivalents of $126.9 million. We believe that ourcurrent available cash, cash equivalents and investments in marketable securities will be sufficient to fund our planned expenditures and meet ourobligations for at least the next 12 months following our financial statement issuance date. We will need to raise75 additional funds in the future; however, there can be no assurance that such efforts will be successful or that, in the event that they are successful, the termsand conditions of such financing will be favorable to us.Summary Statement of Cash FlowsThe following table summarizes our cash flows for the periods presented: Year Ended December 31, 2017 2016 2015 (in thousands) Net cash used in operating activities $(200,286) $(252,545) $(107,990)Net cash used in investing activities (4,417) (6,515) (6,949)Net cash provided by financing activities 206,787 226,179 122,689 Effect of exchange rate changes in cash and cash equivalents (120) (398) 84 Net increase (decrease) in cash and cash equivalents $1,964 $(33,279) $7,834 Net cash used in operating activitiesCash used in operating activities was $200.3 million for the year ended December 31, 2017, which was primarily due to the following: •a net loss of $238.3 million; •non-cash charges related to the fair value remeasurement of our contingent consideration obligation of $2.3 million; •a decrease in accounts payable, accounts payable-related parties, and accrued and other liabilities of $23.4 million primarily due to thewinding down of our clinical research and manufacturing activities and the timing of vendor payments; •a decrease in deferred revenue of $1.6 million as we recognized revenue from our Daiichi Sankyo collaboration agreement; and •a decrease in advance payments from a collaboration and licensing partner of $1.1 million.The cash used in operating activities was partially offset by the following: •a decrease in prepaid and other current assets of $18.8 million primarily due to the winding down of our clinical research and manufacturingactivities related to CHS-0214 and CHS-1420, and the timing of vendor payments; •a decrease in receivables from a collaboration and license agreement of $1.9 million; and •non-cash charges related to stock-based compensation of $33.4 million, manufacturing postponement fee of $4.1 million, non-cash bonuspayment settled in common stock of $2.7 million, depreciation and amortization of property and equipment of $3.4 million, non-cash interestrelated to the amortization of debt discount and debt issuance cost of $1.4 million and impairment of property and equipment of $0.6 million.Cash used in operating activities was $252.5 million for the year ended December 31, 2016, which was primarily due to the following: •a net loss of $127.8 million; •non-cash reduction of $1.3 million in other receivables due to the reversal of a provision; •a decrease of $93.2 million in deferred revenue and $66.3 million in contingent liability to collaborator primarily due to the recognition of allBaxalta deferred revenue and contingent liability to collaborator as a result of the termination of the Baxalta license agreement during the thirdquarter of 2016; and •a decrease in accounts payable, accounts payable-related parties, and accrued and other liabilities of $3.6 million primarily due to thepayments to our clinical research organizations and clinical manufacturing organizations as a result of the progression of our Phase 3 clinicaltrial programs that are winding down, and the timing of the vendor payments.The cash used in operating activities was partially offset by the following: •non-cash charges related to stock-based compensation of $27.4 million, fair value remeasurement of our contingent consideration obligation of$4.3 million, non-cash interest expense of $1.0 million, and depreciation and amortization of property and equipment of $3.0 million; and •a decrease in prepaid and other current assets of $4.2 million primarily due to the progression of our Phase 3 clinical trial programs that arewinding down and the timing of the vendor payments.76 Cash used in operating activities was $108.0 million for the year ended December 31, 2015, which was primarily due to the following: •a net loss of $223.9 million; and •an increase in prepaid and other current assets of $15.9 million resulting from the increase in clinical activities and timing of vendor paymentsas a result of prepayments for comparator drug and for starting clinical trials.The cash used in operating activities was partially offset by the following: •non-cash charges of stock-based compensation of $16.7 million, $4.6 million related to the remeasurement of our contingent considerationobligations, $2.3 million for depreciation and amortization and impairment of property and equipment, and $1.3 million related to a reserve forother receivables; •increase in accounts payable, accounts payable-related parties, and accrued liabilities of $32.8 million as a result of the increase in clinicalactivities and timing of vendor payments; •increase of $32.3 million in deferred revenue and $38.6 million in contingent liability to collaborator both related to $100.0 million milestonepayments received from Baxalta under our license agreement; and •a decrease in notes receivable of $1.9 million as it was collected, and a decrease of $0.9 million in receivables from collaboration and licenseagreements.Net cash used in investing activitiesCash used in investing activities of $4.4 million for the year ended December 31, 2017 was due to the purchase of short-term investments inmarketable securities of $74.3 million and capital equipment of $4.6 million, partially offset by proceeds from the sales and maturities of investments inmarketable securities of $74.5 million.Cash used in investing activities of $6.5 million for the year ended December 31, 2016 was due to the purchase of capital equipment and leaseholdimprovements.Cash used in investing activities of $6.9 million for the year ended December 31, 2015 was due primarily to the purchase of capital equipment andleasehold improvements of $6.2 million, and an increase in restricted cash of $0.8 million as a result of the new headquarters lease requirement.Net cash provided by financing activitiesCash provided by financing activities of $206.8 million for year ended December 31, 2017 was primarily related to proceeds of $131.8 million fromthe issuance of our common stock from a follow-on offering and the ATM Offering Program, net of underwriting discounts and commissions, $75.0 millionrelated to our private placement, and $0.5 million from the exercise of stock options. The proceeds were partially offset by payments of offering expenses of$0.5 million related to the issuance of common stock.Cash provided by financing activities of $226.2 million for year ended December 31, 2016 was primarily related to proceeds of $100.0 million fromthe issuance of the Convertible Notes, the proceeds of $124.3 million from the issuance of our common stock from a follow-on offering and the ATM OfferingProgram, net of underwriting discounts and commissions, and proceeds from the exercise of stock options of $3.3 million, partially offset by payments ofconvertible debt issuance costs of $0.7 million and offering expenses of $0.7 million related to the issuance of common stock.Cash provided by financing activities of $122.7 million for the year ended December 31, 2015 was primarily related to the net proceeds of $112.8million from the issuance of our common stock in connection with our follow-on offering, net proceeds of approximately $10.0 million from the privateplacement with Baxalta, and proceeds from the exercise of stock options of $1.4 million, partially offset by our payments of IPO and follow-on offering costsof $1.5 million.77 Funding RequirementsWe believe that our current available cash and cash equivalents, together with the $1.7 million in cash from the sale of common stock under our ATMOffering Program in January 2018 will be sufficient to fund our planned expenditures and meet our obligations through at least 12 months following ourfinancial statement issuance date. We have based this estimate on assumptions that may prove to be wrong, and we could utilize our available capitalresources sooner than we currently expect. Further, our operating plan may change, and we may need additional funds to meet operational needs and capitalrequirements for product development and commercialization sooner than planned. We currently have no credit facility or committed sources of capital.Because of the numerous risks and uncertainties associated with the development and commercialization of our product candidates and the extent to whichwe may enter into additional agreements with third parties to participate in their development and commercialization, we are unable to estimate the amountsof increased capital outlays and operating expenditures associated with our current and anticipated clinical trials. Our future funding requirements willdepend on many factors, including the following: •the cost of manufacturing clinical supplies and establishing commercial supplies of our product candidates and any products that we maydevelop; •the scope, cost and timing of hiring our sales force and building our commercial infrastructure; •the number and characteristics of product candidates that we pursue; •the scope, rate of progress, results and cost of our clinical trials, preclinical testing and other related activities; •the costs of acquiring originator comparator materials and manufacturing preclinical study and clinical trial supplies and other materials fromCMOs and related costs associated with release and stability testing; •the receipt of any collaboration payments; •the cost, timing and outcomes of regulatory approvals; •the terms and timing of any other collaborative, licensing and other arrangements that we may establish; •the timing, receipt and amount of sales, profit sharing or royalties, if any, from our potential products; •the cost of preparing, filing, prosecuting, defending and enforcing any patent claims and other intellectual property rights; and •the extent to which we acquire or invest in businesses, products or technologies.We will need to raise additional capital to fund our operations in the near future. Funding may not be available to us on acceptable terms, or at all. Ifwe are unable to obtain adequate financing when needed, we may have to delay, reduce the scope of or suspend one or more of our clinical trials, research anddevelopment programs or commercialization efforts. We may seek to raise any necessary additional capital through a combination of public or private equityofferings, debt financings, collaborations, strategic alliances, licensing arrangements and other marketing and distribution arrangements. In November 2016,we entered into an ATM Offering Program with Cowen, as our sales agent, pursuant to which we may sell, through Cowen, up to an aggregate of $100.0million in shares of our common stock. As of December 31, 2017, we had $32.0 million remaining under the ATM Offering Program. We will seek to enterinto strategic partnerships to commercialize our biosimilar candidates in ex-US territories or globally for certain therapeutic areas. To the extent that we raiseadditional capital through marketing and distribution arrangements or other collaborations, strategic alliances or licensing arrangements with third parties,we may have to relinquish valuable rights to our product candidates, future revenue streams, research programs or product candidates or to grant licenses onterms that may not be favorable to us. If we do raise additional capital through public or private equity offerings, the ownership interest of our existingstockholders will be diluted, and the terms of these securities may include liquidation or other preferences that adversely affect our stockholders’ rights. If weraise additional capital through debt financing, we may be subject to covenants limiting or restricting our ability to take specific actions, such as incurringadditional debt, making capital expenditures or declaring dividends.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.78 Contractual ObligationsOur future contractual obligations as of December 31, 2017 were as follows: Payments Due by Period Less than 1 to 3 3 to 5 More than Contractual Obligations: Total 1 year years years 5 years (in thousands) Long-term debt obligations (1) $143,850 $8,200 $16,400 $119,250 $— Non-cancelable operating lease obligations (2) 12,974 2,601 5,183 5,190 — Contingent payments to InteKrin stockholders 3,290 3,290 — — — Total contractual obligations $160,114 $14,091 $21,583 $124,440 $— (1)The long-term debt obligation is comprised of future minimum payments related to the Convertible Notes.(2)These amounts are comprised of the rent payments on our facility leases.In February 2016, we issued and sold $100.0 million aggregate principal amount of Convertible Notes that require quarterly interest distributions at afixed coupon rate of 8.2% until maturity, redemption or conversion, which will be no later than March 31, 2022. After March 31, 2020, the full amount of theConvertible Notes not previously converted are redeemable for cash at our option if the last reported sale price per share of our common stock exceeds 160%of the conversion price on 20 or more trading days during the 30 consecutive trading days preceding the date on which we send notice of such redemption tothe holders of the Convertible Notes. At maturity or redemption, if not earlier converted, we will pay 109% of the principal amount of the Convertible Notes,together with accrued and unpaid interest, in cash.The Company enters into contracts in the normal course of business with CROs for preclinical studies and clinical trials and CMOs for themanufacture of drug materials. The contracts are cancellable, with varying provisions regarding termination. If a contract with a specific vendor were to beterminated, the Company would only be obligated for products or services that the Company had received as of the effective date of the termination and anyapplicable cancellation fees. Item 7A.Quantitative and Qualitative Disclosures about Market RiskAs of December 31, 2017, we had cash and cash equivalents of $126.9 million. A portion of our cash equivalents, which are in money market funds,may be subject to interest rate risk and could fall in value if market interest rates increase. However, because our cash equivalents are primarily short-term induration, we believe that our exposure to interest rate risk is not significant and a 1% movement in market interest rates would not have a significant impacton the total value of our portfolio.We are exposed to market risk related to changes in foreign exchange rates. We contract with CROs and contract manufacturers globally and thus weface foreign exchange risk as a result of entering into transactions denominated in currencies other than U.S. dollars. Due to the uncertain timing of expectedpayments in foreign currencies, we do not utilize any forward exchange contracts. All foreign transactions settle on the applicable spot exchange basis at thetime such payments are made. An adverse movement in foreign exchange rates could have a material effect on payments made to foreign suppliers and forlicense agreements. A hypothetical 10% change in foreign exchange rates during any of the periods presented would not have had a material impact on ourfinancial statements. 79 Item 8.Consolidated Financial Statements and Supplementary Data COHERUS BIOSCIENCES, INC.ANNUAL REPORT ON FORM 10-KINDEX TO AUDITED CONSOLIDATED FINANCIAL STATEMENTS PageReport of Independent Registered Public Accounting Firm 81Consolidated Financial Statements Consolidated Balance Sheets 82Consolidated Statements of Operations 83Consolidated Statements of Comprehensive Loss 84Consolidated Statements of Stockholders’ Equity (Deficit) 85Consolidated Statements of Cash Flows 86Notes to Consolidated Financial Statements 87 80 REPORT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRMTo the Stockholders and the Board of Directors of Coherus BioSciences, Inc.,Opinion on the Financial StatementsWe have audited the accompanying consolidated balance sheets of Coherus BioSciences, Inc., (the “Company”) as of December 31, 2017 and 2016, therelated consolidated statements of operations, comprehensive loss, stockholders‘ equity (deficit), and cash flows, for each of the three years in the periodended December 31, 2017, and the related notes (collectively referred to as the “consolidated financial statements”). In our opinion, the consolidatedfinancial statements present fairly, in all material respects, the financial position of the Company as of December 31, 2017 and 2016, and the results of itsoperations and its cash flows for each of the three years in the period ended December 31, 2017, in conformity with US generally accepted accountingprinciples.We also have audited, in accordance with the standards of the Public Company Accounting Oversight Board (United States) (PCAOB), the Company'sinternal control over financial reporting as of December 31, 2017, based on criteria established in Internal Control-Integrated Framework issued by theCommittee of Sponsoring Organizations of the Treadway Commission (2013 framework) and our report dated March 8, 2018 expressed an unqualifiedopinion thereon.Basis for OpinionThese financial statements are the responsibility of the Company‘s management. Our responsibility is to express an opinion on the Company‘s financialstatements based on our audits. We are a public accounting firm registered with the Public Company Accounting Oversight Board (United States) (“PCAOB”)and are required to be independent with respect to the Company in accordance with the US federal securities laws and the applicable rules and regulations ofthe Securities and Exchange Commission and the PCAOB.We conducted our audits in accordance with the standards of the PCAOB. Those standards require that we plan and perform the audit to obtain reasonableassurance about whether the financial statements are free of material misstatement, whether due to error or fraud. Our audits included performing proceduresto assess the risks of material misstatement of the financial statements, whether due to error or fraud, and performing procedures that respond to those risks.Such procedures include examining, on a test basis, evidence regarding the amounts and disclosures in the financial statements. Our audits also includedevaluating the accounting principles used and significant estimates made by management, as well as evaluating the overall presentation of the financialstatements. We believe that our audits provide a reasonable basis for our opinion./s/ Ernst & Young LLP We have served as the Company’s auditor since 2012.Redwood City, CaliforniaMarch 8, 2018 81 Coherus BioSciences, Inc.Consolidated Balance Sheets(in thousands, except share and per share data) December 31, 2017 2016 Assets Current assets: Cash and cash equivalents $126,911 $124,947 Restricted cash 60 60 Receivables from collaboration and license agreement — 1,859 Prepaid assets (includes related parties of $908 and $3,714 as of December 31, 2017 and 2016, respectively) 18,364 31,634 Other assets (includes related parties of $0 and $2,184 as of December 31, 2017 and 2016, respectively) 142 2,986 Total current assets 145,477 161,486 Property and equipment, net 12,773 10,772 Intangible assets 2,620 2,620 Goodwill 943 943 Restricted cash, non-current 785 785 Other assets, non-current 13 1,879 Total assets $162,611 $178,485 Liabilities and Stockholders’ Equity Current liabilities: Accounts payable $15,481 $19,706 Accounts payable - related parties 233 877 Accrued liabilities (includes related parties of $510 and $3,542 as of December 31, 2017 and 2016, respectively) 9,050 28,022 Advance payments under license agreement — 1,070 Deferred revenue — 892 Contingent consideration 3,290 5,550 Other liabilities 341 259 Total current liabilities 28,395 56,376 Deferred revenue, non-current — 669 Convertible notes 76,206 75,192 Convertible notes - related parties 25,402 25,064 Other liabilities, non-current 2,073 1,830 Total liabilities 132,076 159,131 Commitments and contingencies (Note 7) Stockholders’ equity: Preferred stock, $0.0001 par value; Shares authorized: 5,000,000; Shares issued and outstanding: no shares at December 31, 2017 and 2016. — — Common stock, $0.0001 par value; Shares authorized: 300,000,000; Shares issued and outstanding: 59,840,467 and 45,808,163 at December 31, 2017 and 2016, respectively 6 5 Additional paid-in capital 808,060 558,474 Accumulated other comprehensive loss (750) (630)Accumulated deficit (775,492) (537,322)Total Coherus stockholders' equity 31,824 20,527 Non-controlling interest (1,289) (1,173)Total stockholders' equity 30,535 19,354 Total liabilities and stockholders’ equity $162,611 $178,485 See accompanying notes to consolidated financial statements. 82 Coherus BioSciences, Inc.Consolidated Statements of Operations(in thousands, except share and per share data) Year Ended December 31, 2017 2016 2015 Revenue: Collaboration and license revenue $1,556 $189,476 $30,041 Other revenue — 630 — Total revenue 1,556 190,106 30,041 Operating expenses: Research and development (includes related party of $8,199, $34,705 and $42,768 for the years ended December 31, 2017, 2016 and 2015, respectively) 162,389 254,440 213,062 General and administrative (includes related party of $62, $178 and $559 for the years ended December 31, 2017, 2016 and 2015, respectively) 71,303 51,597 36,046 Total operating expenses 233,692 306,037 249,108 Loss from operations (232,136) (115,931) (219,067)Interest expense (includes related party of $2,388, $1,980 and $0 for the years ended December 31, 2017, 2016 and 2015, respectively) (9,552) (7,980) (33)Other income (expense), net 3,402 (3,877) (4,838)Net loss (238,286) (127,788) (223,938)Net loss attributable to non-controlling interest 116 451 678 Net loss attributable to Coherus $(238,170) $(127,337) $(223,260)Net loss per share attributable to Coherus, basic and diluted $(4.48) $(3.04) $(6.01)Weighted-average number of shares used in computing net loss per share attributable to Coherus, basic and diluted 53,133,620 41,912,300 37,122,008 See accompanying notes to consolidated financial statements. 83 Coherus BioSciences, Inc.Consolidated Statements of Comprehensive Loss(in thousands) Year Ended December 31, 2017 2016 2015 Net loss $(238,286) $(127,788) $(223,938)Other comprehensive loss: Foreign currency translation adjustments, net of tax (120) (229) 124 Comprehensive loss (238,406) (128,017) (223,814)Comprehensive loss attributable to non-controlling interest 116 451 678 Comprehensive loss attributable to Coherus $(238,290) $(127,566) $(223,136) See accompanying notes to consolidated financial statements. 84 Coherus BioSciences, Inc.Consolidated Statements of Stockholders’ Equity (Deficit)(in thousands, except share and per share data) Accumulated Total Coherus Total Additional Other Stockholders' Stockholders' Common Stock Paid-In Comprehensive Accumulated Equity Noncontrolling Equity Shares Amount Capital Loss Deficit (Deficit) Interest (Deficit) Balances at December 31, 2014 33,257,978 $3 $254,048 $(525) $(186,725) $66,801 $(44) $66,757 Issuance of common stock upon payment of InteKrin Earn Out contingency 358,384 — 9,849 — — 9,849 — 9,849 Retired shares resulting from InteKrin escrow distribution in cash (8) — — — — — — — Issuance of common stock in connection with follow-on public offering, net 4,137,931 1 112,198 — — 112,199 — 112,199 Issuance of common stock in connection with private placement, net 390,167 — 9,930 — — 9,930 — 9,930 Issuance of common stock upon exercise of stock options 861,137 — 1,429 — — 1,429 — 1,429 Vesting of restricted common stock issued to founders — — 9 — — 9 — 9 Stock-based compensation expense — — 16,712 — — 16,712 — 16,712 Cumulative translation adjustment — — — 124 — 124 — 124 Distributions to non-controlling interest — — — — — — (678) (678)Net loss attributable to Coherus — — — — (223,260) (223,260) — (223,260)Balances at December 31, 2015 39,005,589 4 404,175 (401) (409,985) (6,207) (722) (6,929)Issuance of common stock in connection with common stock offerings, net 6,040,987 1 123,566 — — 123,567 — 123,567 Issuance of common stock upon exercise of stock options 761,587 — 3,312 — — 3,312 — 3,312 Stock-based compensation expense — — 27,421 — — 27,421 — 27,421 Cumulative translation adjustment — — — (229) — (229) — (229)Distributions to non-controlling interest — — — — — — (451) (451)Net loss attributable to Coherus — — — — (127,337) (127,337) — (127,337)Balances at December 31, 2016 45,808,163 5 558,474 (630) (537,322) 20,527 (1,173) 19,354 Issuance of common stock in connection with common stock offerings, net 6,220,901 — 131,849 — — 131,849 — 131,849 Issuance of common stock in connection with private placements 7,332,220 1 81,809 — — 81,810 — 81,810 Offering costs associate with common stock offering and private placements — — (619) — — (619) — (619)Issuance of common stock upon exercise of stock options 162,978 — 482 — — 482 — 482 Stock-based compensation expense — — 33,397 — — 33,397 — 33,397 Issuance of common stock upon vesting of RSUs 14,750 — — — — — — — Issuance of common stock upon 2017 bonus payout 301,455 — 2,668 — — 2,668 — 2,668 Cumulative translation adjustment — — — (120) — (120) — (120)Distributions to non-controlling interest — — — — — — (116) (116)Net loss attributable to Coherus — — — — (238,170) (238,170) — (238,170)Balances at December 31, 2017 59,840,467 $6 $808,060 $(750) $(775,492) $31,824 $(1,289) $30,535 See accompanying notes to consolidated financial statements. 85 Coherus BioSciences, Inc.Consolidated Statements of Cash Flows(in thousands) Years Ended December 31, 2017 2016 2015 Operating activities Net loss $(238,286) $(127,788) $(223,938)Adjustments to reconcile net loss to net cash used in operating activities: Depreciation and amortization 3,398 2,996 1,869 Remeasurement of fair-value contingent consideration (2,260) 4,305 4,599 Non-cash accretion of discount on marketable securities (156) — — Non-cash interest expense (income) from amortization of debt discount (receivable) 1,352 1,041 (38)Provision for other receivables — (1,300) 1,300 Stock-based compensation expense 33,397 27,421 16,721 Non-cash bonus payment settled in common stock 2,668 — — Non-cash manufacturing postponement fee settled in common stock 4,125 — — Loss (gain) on disposal of property and equipment 51 (6) — Impairment of property and equipment 558 — 382 Changes in operating assets and liabilities: Receivables from collaboration and license agreement 1,859 (299) 857 Notes receivable — — 1,853 Prepaid assets 15,958 3,127 (14,288)Other assets 2,844 1,111 (3,329)Other assets - related party — — 1,691 Other assets, non-current — 88 42 Accounts payable (3,810) (4,965) 18,404 Accounts payable - related parties (644) (2,671) 1,528 Accrued liabilities (19,033) 3,953 12,832 Other liabilities 83 65 (28)Deferred revenue (1,562) (93,236) 32,294 Advance payments under license agreements (1,070) (260) 138 Contingent liability to collaborator — (66,255) 38,605 Other liabilities, non-current 242 128 516 Net cash used in operating activities (200,286) (252,545) (107,990)Investing activities Purchases of property and equipment (4,573) (6,515) (6,164)Purchases of investments in marketable securities (74,344) — — Proceeds from sales and maturities of investments in marketable securities 74,500 — — Increase in restricted cash — — (785)Net cash used in investing activities (4,417) (6,515) (6,949)Financing activities Proceeds from issuance of convertible notes — 75,000 — Proceeds from issuance of convertible notes - related parties — 25,000 — Proceeds from follow-on offering, net of underwriters discounts and commissions — — 112,800 Proceeds from private placement 75,000 — 10,000 Proceeds from common stock offering, net of underwriters discounts and commissions 131,849 124,311 — Payments of initial public offering costs — — (855)Payments of follow-on offering costs and private placement — — (672)Payment of costs related to future offerings — — (13)Payments of convertible notes issuance costs — (739) — Payments of common stock offering and private placement issuance costs (544) (705) — Proceeds from issuances of common stock upon exercise of stock options 482 3,312 1,429 Net cash provided by financing activities 206,787 226,179 122,689 Effect of exchange rate changes in cash and cash equivalents (120) (398) 84 Net increase (decrease) in cash and cash equivalents 1,964 (33,279) 7,834 Cash and cash equivalents at beginning of period 124,947 158,226 150,392 Cash and cash equivalents at end of period $126,911 $124,947 $158,226 Supplemental disclosure of cash flow information Cash paid for interest $8,200 $6,939 $33 Supplemental disclosures of noncash investing and financing activities Purchase of property and equipment in accounts payable and accrued liabilities (430) 507 1,684 Leasehold improvements allowance from landlord — — 1,239 Costs related to future offerings in accounts payable and accrued liabilities — — 124 Common stock offering costs in accounts payable and accrued liabilities 75 39 — Manufacturing services settled in common stock 6,810 — — Fair value of contingent consideration settled in common stock — — 9,849 See accompanying notes to consolidated financial statements. 86 Coherus BioSciences, Inc.Notes to Consolidated Financial Statements 1.Organization and OperationsDescription of the BusinessThe Company is a late-stage clinical biologics platform company, focused on the global biosimilar market. The Company’s headquarters andlaboratories are located in Redwood City, California and in Camarillo, California, respectively.Need to Raise Additional CapitalAs of December 31, 2017, the Company had an accumulated deficit of $775.5 million and cash and cash equivalents of $126.9 million. In January2018, the Company issued and sold 183,316 shares of common stock at a weighted average price of $9.38 per share through its ATM Offering Program andreceived total net proceeds of $1.7 million. The Company believes that its current available cash and cash equivalents will be sufficient to fund its plannedexpenditures and meet the Company’s obligations for at least 12 months following its financial statement issuance date. The Company will need to raiseadditional funds in the future; however there can be no assurance that such efforts will be successful or that, in the event that they are successful, the termsand conditions of such financing will be favorable. If the Company is unable to obtain adequate financing when needed, it may have to delay, reduce thescope of or suspend one or more of its clinical trials, research and development programs or commercialization efforts. 2.Basis of Presentation and Summary of Significant Accounting Policies Basis of ConsolidationThe accompanying consolidated financial statements have been prepared in accordance with accounting principles generally accepted in the UnitedStates (“U.S. GAAP”). The accompanying consolidated financial statements include the accounts of Coherus and its wholly owned subsidiaries as ofDecember 31, 2017: Coherus Intermediate Corp, Coherus Oncology, Inc., InteKrin Therapeutics Inc. (“InteKrin”) and InteKrin’s 82.5% majority ownedsubsidiary of InteKrin Russia. Unless otherwise specified, references to the Company are references to Coherus and its consolidated subsidiaries. Allintercompany transactions and balances have been eliminated upon consolidation.Use of EstimatesThe preparation of financial statements in conformity with U.S. GAAP requires management to make estimates and assumptions that affect theamounts and disclosures reported in the financial statements. Management uses significant judgment when making estimates related to its stock-basedcompensation, valuation of deferred tax assets, impairment of goodwill and long-lived assets, the valuation of acquired intangible assets, clinical trialaccruals, revenue recognition periods, contingent consideration, convertible notes valuation, as well as certain accrued liabilities. Management bases itsestimates on historical experience and on other various assumptions that are believed to be reasonable under the circumstances. These estimates form thebasis for making judgments about the carrying values of assets and liabilities when these values are not readily apparent from other sources. Accountingestimates and judgements are inherently uncertain and the actual results could differ from these estimates.Foreign CurrencyThe functional currency of InteKrin Russia, which the Company acquired in February 2014, is the Russian Ruble. Accordingly, the financialstatements of this subsidiary are translated into U.S. dollars using appropriate exchange rates. Unrealized gains or losses on translation are recognized inaccumulated other comprehensive loss in the consolidated balance sheet.For the years ended December 31, 2017, 2016 and 2015, the foreign exchange gains and losses recorded in other income (expense), net in theconsolidated statements of operations were a net gain of $52,000, a net loss of $53,000 and a net loss of $386,000, respectively.Segment Reporting and Customer ConcentrationThe Company operates and manages its business as one reportable and operating segment, which is the business of developing and commercializingbiosimilar products, and, as part of the InteKrin acquisition, small molecules. The Company’s chief executive officer, who is the chief operating decisionmaker, reviews financial information on an aggregate basis for purposes of allocating resources and evaluating financial performance. Long-lived assets areprimarily maintained in the United States of America.87Coherus BioSciences, Inc.Notes to Consolidated Financial Statements The following table summarizes revenue by geographic region (in thousands): Year Ended December 31, 2017 2016 2015 United States $— $188,292 $27,802 Rest of world 1,556 1,814 2,239 Total revenue $1,556 $190,106 $30,041 Customer ConcentrationCustomers whose collaboration and license revenue accounted for 10% or more of total revenues were as follows: Year Ended December 31, 2017 2016 2015 Baxalta * 99% 93%Daiichi Sankyo 100% * * *less than 10%Cash and Cash EquivalentsCash and cash equivalents are comprised of cash and highly liquid investments with remaining maturities of 90 days or less at the date of purchase.The Company limits cash investments to financial institutions with high credit standings; therefore, management believes that there is no significantexposure to credit risk in the Company’s cash and cash equivalents.Investments in Marketable SecuritiesManagement determines the appropriate classification of investments in marketable securities at the time of purchase based upon management’s intentwith regards to such investments and reevaluates such designation as of each balance sheet date. All investments in marketable securities are held as“available-for-sale” and are carried at estimated fair value as determined based upon quoted market prices or pricing models for similar securities.The Company classifies investments in marketable securities as short-term when they have remaining contractual maturities of one year or less fromthe balance sheet date. Unrealized gains and losses are excluded from earnings and are reported as a component of accumulated comprehensive income (loss).Realized gains and losses and declines in value judged to be other than temporary, if any, on available-for-sale securities are included in other income(expense), net, based on specific identification method. The Company started investing in marketable securities in 2017. For the year ended December 31,2017, interest income from marketable securities was $0.8 million.Restricted CashRestricted cash consists of cash held in money market accounts with a bank. The restricted cash that is used as collateral against the Company’scorporate credit cards is classified as current and the restricted cash to cover the standby letter of credit issued for the Company’s landlord to drawdown on ifthe facility lease is breached, is classified as non-current (see Note 7).Concentration of Credit RiskThe Company’s financial instruments that are exposed to concentration of credit risk consist primarily of cash and cash equivalents. The Companymaintains its cash in bank accounts, which at times exceed federally insured limits. The Company attempts to minimize the risks related to cash and cashequivalents by investing in money markets with a broad and diverse range of financial instruments. The investment portfolio is maintained in accordancewith the Company’s investment policy, which defines allowable investments, specifies credit quality standards and limits the credit exposure of any singleissuer. The Company also maintains restricted cash in money market funds that invest primarily in U.S. Treasury securities. The Company has not recognizedany losses from credit risks on such accounts during any of the periods presented. The Company believes it is not exposed to significant credit risk on its cashand money market funds.Fair Value of Financial InstrumentsFair value accounting is applied to all financial assets and liabilities and non-financial assets and liabilities that are recognized or disclosed at fairvalue in the financial statements on a recurring basis.88Coherus BioSciences, Inc.Notes to Consolidated Financial Statements Property and EquipmentProperty and equipment is stated at cost less accumulated depreciation and amortization. Maintenance and repairs are charged to expense as incurred,and costs of improvements are capitalized. Depreciation and amortization is recognized using the straight-line method over the following estimated usefullives: Computer equipment and software 3 yearsFurniture and fixtures 5 yearsMachinery and equipment 5 yearsLeasehold improvements Shorter of lease term or useful life Impairment of Long Lived Assets and Acquired Intangible AssetThe Company reviews long-lived assets, including property and equipment, and indefinite-lived intangible assets for impairment whenever events orchanges in circumstances indicate that the carrying amount of the assets may not be fully recoverable. An impairment loss would be recognized when theestimated undiscounted future cash flows expected to result from the use of the asset and its eventual disposition is less than its carrying amount. Impairment,if any, is measured as the amount by which the carrying value of a long-lived asset exceeds its fair value. For the years ended December 31, 2017, 2016 and2015, the Company recorded an impairment of property and equipment of $558,000, $0 and $382,000, respectively, in research and development within thestatement of operations.Acquired in-process research and development (“IPR&D”) represents the fair value assigned to research and development assets that have not reachedtechnological feasibility. The Company reviews amounts capitalized as acquired IPR&D for impairment at least annually, and whenever events or changes incircumstances indicate that the carrying value of the assets might not be recoverable. If the carrying value of the acquired IPR&D exceeds its fair value, thenthe intangible asset is written-down to its fair value. As of December 31, 2017, there have been no such impairments. Once the product candidate derivedfrom the indefinite-lived intangible asset has been developed and commercialized, the useful life will be determined, and the carrying value of the finite-lived asset will be amortized prospectively over that estimated useful life. Alternatively, if the product candidate is abandoned, the carrying value of theintangible will be charged to research and development expense.GoodwillGoodwill represents the excess of the purchase price over the fair value of the net tangible and intangible assets acquired. The Company tests goodwillfor impairment at least annually or more frequently if events or changes in circumstances indicate that this asset may be impaired. The goodwill test is basedon our single operating segment and reporting unit structure.The Company compares the fair value of its reporting unit to its carrying value. If the carrying value of the net assets assigned to the reporting unitexceeds the fair value of the reporting unit, then the Company would need to determine the implied fair value of the reporting unit’s goodwill. If the carryingvalue of the reporting unit’s goodwill exceeds its implied fair value, then the Company would record an impairment loss equal to the difference. No goodwillimpairment was identified through December 31, 2017.Derivative LiabilityThe Company has a derivative liability related to the contingent consideration associated with the acquisition of InteKrin in 2014. There were twocontingent payments payable upon the achievement of certain events: (i) the completion of the first dosing of a human subject in the first Phase 2 clinicaltrial for InteKrin, (“Earn-Out Payment”) and (ii) upon the execution of any license, sublicense, development, collaboration, joint venture, partnering orsimilar agreement between the Company and the third party (“Compound Transaction Payment”). The derivative related to the contingent consideration isaccounted for as a liability and remeasured to fair value as of each balance sheet date and the related remeasurement adjustment is recognized as other income(expense), net in the consolidated statements of operations. The Company determined the fair value of the two contingent consideration scenarios (the Earn-Out Payment and the Compound Transaction Payment) using a probability-weighted discounted cash flow approach. A probability-weighted value wasdetermined by summing the probability of achieving a contingent payment threshold by the respective contingent payments. The expected cash flows werediscounted at a rate selected to capture the risk of achieving the contingent payment thresholds and earning the contingent payment. This risk is comprisedof InteKrin’s continued development, a specific risk factor associated with meeting the contingent consideration threshold and related payout, andcounterparty risk associated with the payment of the contingent consideration.89Coherus BioSciences, Inc.Notes to Consolidated Financial Statements Accrued Research and Development ExpenseClinical trial costs are a component of research and development expense. The Company accrues and expenses clinical trial activities performed bythird parties based upon actual work completed in accordance with agreements established with clinical research organizations and clinical sites. TheCompany determines the actual costs through monitoring patient enrollment, discussions with internal personnel and external service providers as to theprogress or stage of completion of trials or services and the agreed-upon fee to be paid for such services.Revenue RecognitionThe Company recognizes revenue when persuasive evidence of an arrangement exists; transfer of technology has been completed, services have beenperformed or products have been delivered; the fee is fixed and determinable; and collection is reasonably assured.For revenue agreements with multiple elements, the Company identifies the deliverables included within the agreement and evaluates whichdeliverables may represent separate units of accounting based on the achievement of certain criteria, including whether the delivered element has stand-alonevalue to the collaborator. Deliverables under the arrangement are a separate unit of accounting if (i) the delivered item has value to the customer on astandalone basis and (ii) if the arrangement includes a general right of return relative to the delivered item and delivery or performance of the undelivereditems are considered probable and substantially within the Company’s control.The Company determines how to allocate arrangement consideration to identified units of accounting based on the selling price hierarchy providedunder the relevant guidance. The selling price used for each unit of accounting is based on vendor-specific objective evidence, if available, third partyevidence if vendor-specific objective evidence is not available or estimated selling price if neither vendor-specific nor third-party evidence is available.Management may be required to exercise considerable judgment in determining whether a deliverable is a separate unit of accounting and in estimating theselling prices of identified units of accounting under its agreements.Upfront payments received in connection with licenses of the Company’s technology rights are deferred if facts and circumstances dictate that thelicense does not have stand-alone value. Such payments are recognized as license revenue over the estimated period of performance that is generallyconsistent with the terms of the research and development obligations contained in the specific collaboration and license agreement. The Company regularlyreviews the estimated period of performance based on the progress made under each arrangement. Amounts received as funding of research and developmentactivities are recognized as revenue if the collaboration arrangement involves the sale of the Company’s research or development services. However, suchfunding is recognized as a reduction in research and development expense when the Company engages in a research and development project jointly withanother entity, with both entities participating in project activities and sharing costs and potential benefits of the arrangement.Payments that are contingent upon the achievement of a substantive milestone are recognized in their entirety in the period in which the milestone isachieved, assuming all other revenue recognition criteria are met. A milestones is defined as an event that can only be achieved based on the Company’sperformance where there is substantive uncertainty about whether the event will be achieved at the inception of the arrangement. Events that are contingentonly on the passage of time or only on counterparty performance are not considered milestones under accounting guidance. The Company’s evaluationincludes an assessment of whether (a) the consideration is commensurate with either (1) the Company’s performance to achieve the milestone, or (2) theenhancement of the value of the delivered item(s) as a result of a specific outcome resulting from the Company’s performance to achieve the milestone,(b) the consideration relates solely to past performance and (c) the consideration is reasonable relative to all of the deliverables and payment terms within thearrangement. The Company evaluates factors such as the scientific, regulatory, commercial and other risks that must be overcome to achieve the respectivemilestone, the level of effort and investment required to achieve the respective milestone and whether the milestone consideration is reasonable relative to alldeliverables and payment terms in the arrangement in making this assessment.Other contingent payments in which a portion of the payment is refundable or adjusts based on future performance or non-performance (e.g., through apenalty or claw-back provision) are not considered to relate solely to the Company’s past performance, and therefore, not considered substantive. Non-substantive contingent payments are classified as deferred revenue if they are ultimately expected to result in revenue recognition. The Company recognizesnon-substantive contingent payments over the remaining estimated period of performance once the specific objective is achieved. Any portion of the non-substantive contingent payments, which may be required to be refunded to the collaborator are not included in deferred revenue and instead are reflected ascontingent liability to collaborator on the consolidated balance sheets.Contingent payments associated with the achievement of specific objectives in certain contracts that are not considered substantive because theCompany does not contribute effort to the achievement of such milestones are recognized as revenue upon achievement of the objective, as long as there areno undelivered elements remaining and no continuing performance obligations by the Company, assuming all other revenue recognition criteria are met.90Coherus BioSciences, Inc.Notes to Consolidated Financial Statements Revenue from a government contract is recognized in the period during which the related costs are incurred and the related services are rendered,provided that the funds received are not refundable and applicable conditions under the government contract have been met. Funds received in advance arerecorded as deferred revenue.Research and Development ExpenseResearch and development costs are charged to expense as incurred. Research and development expense include, among other costs, salaries and otherpersonnel-related costs, consultant fees, preclinical costs, cost to manufacture drug candidates and clinical trial costs and supplies, laboratory supplies costsand facility-related costs. Costs incurred under agreements with third parties are charged to expense as incurred in accordance with the specific contractualperformance terms of such agreements. Costs of third parties include costs associated with manufacturing drug candidates, preclinical and clinical supportactivities. In certain cases, amounts received as reimbursement of research and development activities from the Company’s collaborators are recognized as areduction in research and development expense when the Company engages in a research and development project jointly with another party, with bothparties incurring costs while actively participating in project activities and both parties sharing costs and potential benefits of the arrangement. Costsincurred under the arrangements where the Company provides research services approximate the amount of revenues recorded. Advance payments for goodsor services to be received in the future to be utilized in research and development activities are deferred and capitalized. The capitalized amounts areexpensed as the related goods are delivered or the services are rendered.The Company considers regulatory approval of product candidates to be uncertain, and product manufactured prior to regulatory approval may not besold unless regulatory approval is obtained. The Company expenses manufacturing costs for product candidates incurred prior to regulatory approval asresearch and development expenses as the Company incurs them. If and when regulatory approval of a product is obtained, the Company will begincapitalizing manufacturing costs related to the approved product into inventory.Stock-Based CompensationThe Company measures the cost of equity-based service awards based on the grant-date fair value of the award. The compensation cost is recognizedas expense on a straight-line basis over the vesting period for options, restricted common stock and restricted stock units (RSUs). Because non-cash stockcompensation expense is based on awards ultimately expected to vest, it is reduced by an estimate for future forfeitures. Forfeitures are estimated at the timeof grant and revised, if necessary, in subsequent periods if actual forfeitures differ from estimates. The Company adopted the ASU No. 2016-09,Compensation-Stock Compensation Improvements to Employee Share-Based Payment, electing to account for forfeitures as they occur as of January 1, 2017.The Company accounts for equity instruments issued to nonemployees using the fair value approach. These equity instruments consist of stockoptions and restricted common stock, which are valued using the Black-Scholes option-pricing model. Stock-based compensation expense is recognized asthe equity instruments are earned. The measurement of stock-based compensation is subject to periodic adjustments as the underlying equity instrumentsvest.The Company utilizes the Black-Scholes option-pricing model for estimating fair value of its stock options, ESPP and restricted common stockgranted. Option valuation models, including the Black-Scholes option-pricing model, require the input of highly subjective assumptions, and changes in theassumptions used can materially affect the grant-date fair value of an award. These assumptions include the risk-free rate of interest, expected dividend yield,expected volatility, the expected life of the award, and estimated forfeitures. For RSUs, the Company base the fair value of awards on the closing marketvalue of the common stock at the date of grant.Income TaxesThe Company uses the liability method of accounting for income taxes. Under this method, deferred tax assets and liabilities are determined based onthe differences between the financial reporting and the tax bases of assets and liabilities and are measured using the enacted tax rates and laws that will be ineffect when the differences are expected to reverse. The Company must then assess the likelihood that the resulting deferred tax assets will be realized. Avaluation allowance is provided when it is more likely than not that some portion or all of a deferred tax asset will not be realized. Due to the Company’s lackof earnings history, the net deferred tax assets have been fully offset by a valuation allowance.The Company recognizes uncertain income tax positions at the largest amount that is more likely than not to be sustained upon audit by the relevanttaxing authority. An uncertain income tax position will not be recognized if it has less than a 50% likelihood of being sustained. The Company does notexpect its unrecognized tax benefits to change significantly over the next twelve months.The Company’s policy is to recognize interest and/or penalties related to income tax matters in income tax expense. The Company had accrued noamounts for interest and penalties related to income tax matters in the Company’s consolidated balance sheet at December 31, 2017 and 2016.91Coherus BioSciences, Inc.Notes to Consolidated Financial Statements Comprehensive LossComprehensive loss is composed of two components: net loss and other comprehensive loss. Other comprehensive loss refers to gains and losses thatunder U.S. GAAP are recorded as an element of stockholders’ equity, but are excluded from net loss. The Company’s other comprehensive loss includedunrealized gains and losses from available-for-sale marketable securities and foreign currency translation adjustments for the years ended December 31, 2017,2016 and 2015.Net Loss per Share Attributable to CoherusBasic net loss per share attributable to Coherus is calculated by dividing the net loss attributable to Coherus by the weighted-average number ofshares of common stock outstanding for the period, without consideration for potential dilutive common shares. Since the Company was in a loss position forall periods presented, basic net loss per share attributable to Coherus is the same as diluted net loss per share attributable to Coherus as the inclusion of allpotential dilutive common shares would have been anti-dilutive for all periods presented. Shares of founders’ common stock subject to repurchase areexcluded from the calculation of weighted average shares as the vesting of such shares is contingent upon continued services being rendered by such holders.Recent Accounting PronouncementsIn May 2014, the FASB issued ASU 2014-09, Revenue from Contracts with Customers (Topic 606), which amends the existing accounting standardsfor revenue recognition. Subsequently, the FASB has issued the following standards related to ASU 2014-09: ASU No. 2016-08, Revenue from Contractswith Customers (Topic 606): Principal versus Agent Considerations; ASU No. 2016-10, Revenue from Contracts with Customers (Topic 606): IdentifyingPerformance Obligations and Licensing; and ASU No. 2016-12, Revenue from Contracts with Customers (Topic 606): Narrow-Scope Improvements andPractical Expedients. The Company is required to adopt ASU 2016-08, ASU 2016-10 and ASU 2016-12 with ASU 2014-09 (collectively, the “new revenuestandard”) which is effective for annual and interim periods beginning after December 15, 2017 and early adoption is permitted.The new revenue standard permits two methods of adoption: retrospectively to each prior reporting period presented (full retrospective method), orretrospectively with the cumulative effect of initially applying the guidance recognized at the date of initial application (the modified retrospective method).The Company plans to adopt the standard in the first quarter of 2018 using the modified retrospective method. The Company has evaluated its contracts andassessed that the license agreement with Daiichi Sankyo is the only contract that would be impacted by the new revenue standard. As a result of DaiichiSankyo’s decision in July 2017 to opt-out of the development of CHS-0214 in Japan, the Company recognized the remaining deferred revenue under thislicense agreement in the second quarter of 2017. Therefore, the Company concluded that the adoption of this standard will not have a material impact on itsconsolidated financial statements and related disclosures.In January 2016, the FASB issued ASU No. 2016-01, Recognition and Measurement of Financial Assets and Financial Liabilities. ASU 2016-01makes amendments to the classification and measurement of financial instruments and revises the accounting related to: (1) the classification andmeasurement of investments in equity securities, and (2) the presentation of certain fair value changes for financial liabilities measured at fair value. Inaddition, the update also amends certain disclosure requirements associated with the fair value of financial instruments. ASU 2016-01 is effective for theCompany’s interim and annual reporting periods during the year ending December 31, 2018, and all annual and interim reporting periods thereafter. Earlyadoptions of certain amendments within the update are permitted. The Company concluded that the adoption of ASU 2016-01 will not have a materialimpact on its consolidated financial statements and related disclosures.In February 2016, the FASB issued ASU No. 2016-02, Leases. ASU 2016-02 is aimed at making leasing activities more transparent and comparable,and requires substantially that all leases be recognized by lessees on their balance sheet as a right-of-use asset and corresponding lease liability, includingleases currently accounted for as operating leases. ASU 2016-02 is effective for the Company’s interim and annual reporting periods during the year endingDecember 31, 2019, and all annual and interim reporting periods thereafter. Early adoption is permitted. The Company plans to adopt this new standardprospectively on January 1, 2019 and is evaluating the impact of the adoption of this standard on its unaudited condensed financial statements. TheCompany expects that it will increase its lease assets and correspondingly increase its lease liabilities. The Company is unable to quantify the impact at thistime, as the ultimate impact of adopting this new standard will depend on the total amount of the lease commitments as of the adoption date.In March 2016, the FASB issued ASU No. 2016-09, Compensation-Stock Compensation: Improvements to Employee Share-Based PaymentAccounting. ASU 2016-09 simplifies several aspects of the accounting for share-based payment award transactions, including: (1) the income taxconsequences, (2) classification of awards as either equity or liabilities, and (3) classification on the statement of cash flows. ASU 2016-09 is effective for theCompany’s interim and annual reporting periods beginning on January 1, 2017, and all annual and interim reporting periods thereafter. The Companyadopted ASU 2016-09 on January 1, 2017. Under this guidance, on a prospective basis, companies will no longer record excess tax benefits and certain taxdeficiencies in additional paid-in capital. Instead, they will record all excess tax benefits and tax deficiencies as income tax expense or benefit in thestatement of operations. In addition, the guidance eliminates the requirement that excess tax benefits be realized before companies can recognize them. Thestandard requires a cumulative-effect92Coherus BioSciences, Inc.Notes to Consolidated Financial Statements adjustment for previously unrecognized excess tax benefits in opening retained earnings in the annual period of adoption. As of January 1, 2017, theCompany had a previously unrecognized deferred tax asset of $10.8 million relating to the excess tax benefits. Upon adoption, the Company recognized thisexcess tax benefit as a deferred tax asset with a corresponding increase to deferred tax asset valuation allowance. Additionally, as provided for under this newguidance, the Company elected to account for forfeitures as they occur. The adoption of this standard did not have a material impact on the Company’sfinancial statements.In August 2016, the FASB issued ASU No. 2016-15, Statement of Cash Flows: Classification of Certain Cash Receipts and Cash Payments (ASU2016-15). The amendment to this update addresses eight specific cash flow issues with the objective of reducing the existing diversity in practice. ASU 2016-15 is effective for the Company’s interim and annual reporting periods during the year ending December 31, 2018, and all annual and interim reportingperiods thereafter. Early adoption is permitted. The Company is currently evaluating the impact that the adoption of ASU 2016-15 will have on its condensedconsolidated financial statements and related disclosures. The Company expects that it will only affect the cash flow presentation of Intekrin contingentconsideration related to compound transaction payment (see Note 3) when it ultimately settles.In October 2016, the FASB issued ASU No. 2016-16, Income Taxes: Intra-Entity Transfers of Assets Other Than Inventory (ASU 2016-16). This updateis to improve the accounting for the income tax consequences of intra-entity transfers of assets other than inventory. ASU 2016-16 amends the guidance torecognize the income tax consequences of an intra-entity transfer of an asset other than inventory when the transfer occurs. Consequently, the amendments inthis update eliminate the exception for an intra-entity transfer of an asset other than inventory. The amendments in this update do not include new disclosurerequirements; however, existing disclosure requirements might be applicable when accounting for the current and deferred income taxes for an intra-entitytransfer of an asset other than inventory. ASU 2016-16 is effective for the Company’s interim and annual reporting periods during the year ending December31, 2018, and all annual and interim reporting periods thereafter. Early adoption is permitted. The Company does not expect that the adoption of ASU 2016-16 will have a material effect on its consolidated financial statements and related disclosures.In November 2016, the FASB issued ASU 2016-18, Statement of Cash Flows (Topic 230): Restricted Cash — a consensus of the FASB EmergingIssues Task Force, (ASU 2016-18). The purpose of ASU 2016-18 is to provide guidance on the presentation of restricted cash or restricted cash equivalents inthe statement of cash flows. Specifically, ASU 2016-18 requires companies to include amounts generally described as restricted cash and restricted cashequivalents in cash and cash equivalents when reconciling beginning-of-period and end-of-period total amounts shown on the statement of cash flows. ASU2016-18 is effective for the Company’s interim and annual reporting periods during the year ending December 31, 2018, and all annual and interim periodsthereafter. The amendments in ASU 2016-18 should be applied using a retrospective transition method to each period presented. Early adoption is permitted.The Company does not expect that the adoption of ASU 2016-18 will have a material effect on its consolidated financial statements and related disclosures.In January 2017, the FASB issued ASU No. 2017-04, Intangibles-Goodwill and Other: Simplifying the Test for Goodwill Impairment (ASU 2017-04),which is to simplify the current requirements for testing goodwill for impairment by eliminating the second step of the two-step impairment test to measurethe amount of an impairment loss. ASU 2017-04 is effective for the Company’s interim and annual reporting periods during the year ending December 31,2020, and all annual and interim reporting periods thereafter. Early adoption is permitted. The Company is currently evaluating the impact that the adoptionof ASU 2017-04 will have on its condensed consolidated financial statements and related disclosures.The Company has reviewed other recent accounting pronouncements and concluded they are either not applicable to the business or that no materialeffect is expected on the consolidated financial statements as a result of future adoption. 3.Fair Value MeasurementsFinancial assets and liabilities are recorded at fair value. The carrying amounts of certain of the Company’s financial instruments, including cash andcash equivalents, accounts receivable, accounts payable and other current liabilities approximate their fair value due to their short maturities. Fair value is theprice that would be received to sell an asset or paid to transfer a liability in an orderly transaction between market participants at the measurement date.Valuation techniques used to measure fair value must maximize the use of observable inputs and minimize the use of unobservable inputs. The accountingguidance describes a fair value hierarchy based on three levels of inputs that may be used to measure fair value, of which the first two are consideredobservable and the last is considered unobservable. These levels of inputs are the following:Level 1 — Quoted prices in active markets for identical assets or liabilities.Level 2 — Inputs other than Level 1 that are observable, either directly or indirectly, such as quoted prices for similar assets or liabilities, quotedprices in markets that are not active, or other inputs that are observable or can be corroborated by observable market data for substantially the full termof 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.93Coherus BioSciences, Inc.Notes to Consolidated Financial Statements The Company’s financial instruments consist of Level 1 assets and Level 3 liabilities. Where quoted prices are available in an active market, securitiesare classified as Level 1. Level 1 assets consist of highly liquid money market funds that are included in cash and cash equivalents, and restricted cash. Therewere no unrealized gains and losses in the Company’s investments in these money market funds.In certain cases where there is limited activity or less transparency around inputs to valuation, securities are classified as Level 3. Level 3 liabilitiesconsist of the contingent consideration.Financial assets and liabilities subject to fair value measurements on a recurring basis and the level of inputs used in such measurements are as follows(in thousands): Fair Value Measurements December 31, 2017 Total Level 1 Level 2 Level 3 Assets: Money market funds $125,373 $125,373 $— $— Restricted cash (money market funds) 845 845 — — Total financial assets $126,218 $126,218 $— $— Liabilities: Contingent consideration $3,290 $— $— $3,290 Fair Value Measurements December 31, 2016 Total Level 1 Level 2 Level 3 Assets: Money market funds $104,240 $104,240 $— $— Restricted cash (money market funds) 845 845 — — Total financial assets $105,085 $105,085 $— $— Liabilities: Contingent consideration $5,550 $— $— $5,550 There were no transfers between Level 1, Level 2 and Level 3 during the periods presented.Contingent ConsiderationAs part of the InteKrin acquisition in February 2014, the Company recognized contingent consideration associated with potential payments to bemade to the former InteKrin stockholders upon the achievement of certain events specified in the agreements. This fair value measurement is based onsignificant inputs not observable in the market and thus represents a Level 3 measurement within the fair value hierarchy. The InteKrin purchase agreementprovides for contingent consideration to be paid upon (i) the first dosing of a human subject in the first Phase 2 Clinical Trial for CHS-131 ("Earn-OutPayment") and (ii) per a compound transaction agreement as defined in the purchase agreement (the “Compound Transaction Payment”). The Companyvalued the two contingent consideration scenarios (the Earn-Out Payment and the Compound Transaction Payment) using a probability-weighted discountedcash flow approach. A probability of reaching each contingent consideration threshold was estimated by Company’s management. As of December 31, 2014,the Earn-Out Payment was expected to occur in January 2015 with a 98% probability of occurrence. As part of that analysis, a 25% risk-adjusted discount ratewas used to measure a present value. A separate credit spread was not applied to the Earn-Out Payment fair value since the consideration was to be made incommon stock shares. The size of the contingent consideration was a fixed number of common stock shares, but the value fluctuated with the value of acommon stock share. The Compound Transaction applied the same 25% risk-adjusted discount rate and also captured an additional 6% credit spread forcounterparty credit risk given the cash payment. The Company’s management estimates of probability of occurrence and timing were used to formulate anexpected cash flow. The size of the consideration is tiered based on the size of a license or similar agreement with a third party and the timing of suchagreement. The change in the fair value of the contingent consideration liability is recognized in other income (expense), net within the consolidatedstatement of operations.On March 6, 2015, the Company achieved the first dosing of a human subject in a phase 2 clinical trial for CHS-131 in multiple sclerosis patients,triggering the obligation to settle the first contingent Earn-Out Payment to former InteKrin stockholders. As a result, the Company issued 358,384 shares ofits common stock valued at $27.48 per share and cash of $1,000 for the aggregate amount value of $9.8 million to former InteKrin stockholders.Contemporaneously, the Company recognized the additional fair value of the Earn-Out Payment of $4.1 million to other income (expense), net, in theconsolidated statement of operations on March 6, 2015 and reclassified the contingent consideration liability balance to equity in the consolidated balancesheet. For the year ended December 31, 2015, the Company recognized $4.1 million in other income (expense), net in the consolidated statement ofoperations for the change in the fair value of the Earn-Out Payment.94Coherus BioSciences, Inc.Notes to Consolidated Financial Statements The fair value measurement of the Compound Transaction Payment uses a probability-weighted discounted cash flow approach based on significantinputs not observable in the market and thus represents a Level 3 measurement within the fair value hierarchy. The Compound Transaction analysis as ofDecember 31, 2017 applied a 25% risk-adjusted discount rate to measure present value and also captured an additional 8.0% credit spread for counterpartycredit risk given the cash payment. The Company’s management estimates of probability of occurrence and timing were used to formulate an expected cashflow. During 2017, the fair value of the compound transaction payment decreased as a result of reducing estimates of a payout to former InteKrinstockholders. The consideration is tiered based on the value of a license or similar agreement with a third party and the timing of such agreement. Generally,increases or decreases in the probability of occurrence would result in a directionally similar impact in the fair value measurement of the CompoundTransaction Payment and it is estimated that a 1% increase (decrease) in the probability of occurrence would result in a fair value fluctuation ofapproximately $0.1 million. For the years ended December 31, 2017, 2016 and 2015, the Company recognized a gain of $2.3 million, a loss of $4.3 millionand a loss of $460,000 in other income (expense), net in the consolidated statement of operations, respectively, as a result of the change in the fair value ofthe Compound Transaction Payment.The following table sets forth a summary of changes in the estimated fair value of the contingent consideration (in thousands): Balance as of December 31, 2015 $1,245 Change in fair value of the contingent consideration liability 4,305 Balance as of December 31, 2016 5,550 Change in fair value of the contingent consideration liability (2,260)Balance as of December 31, 2017 $3,290 Convertible NotesThe estimated fair value of the 8.2% Convertible Senior Notes Due 2022, which the Company issued on February 29, 2016 (see Note 6) is based on anincome approach. The estimated fair value was approximately $94.7 million (par value $100.0 million) as of December 31, 2017 and represents a Level 3valuation. When determining the estimated fair value of the Company’s long-term debt, the Company uses a single factor binomial lattice model whichincorporates the terms and conditions of the convertible notes and market based risk measurement that are indirectly observable, such as credit risk. Thelattice model produces an estimated fair value based on changes in the price of the underlying common shares price over successive periods of time. Anestimated yield based on market data is used to discount straight debt cash flows. Key valuation assumptions used for the convertible debt valuation wasvolatility of 60% for the Company’s common stock and straight debt yield of 15.9% as of December 31, 2017. 4.Balance Sheet ComponentsPrepaid AssetsPrepaid assets are as follows (in thousands): December 31, December 31, 2017 2016 Prepaid clinical and other - related parties (see Note 13) $908 $3,714 Prepaid clinical, material and manufacturing 15,304 25,095 Prepaid other 2,152 2,825 Prepaid assets $18,364 $31,634 95Coherus BioSciences, Inc.Notes to Consolidated Financial Statements Property and Equipment, NetProperty and equipment, net are as follows (in thousands): December 31, December 31, 2017 2016 Machinery and equipment $15,229 $10,294 Computer equipment and software 1,586 1,500 Furniture and fixtures 714 682 Leasehold improvements 4,344 4,322 Construction in progress 702 — Total property and equipment 22,575 16,798 Accumulated depreciation and amortization (9,802) (6,026)Property and equipment, net $12,773 $10,772 Depreciation and amortization expense was $3.4 million, $3.0 million and $1.9 million for the years ended December 31, 2017, 2016 and 2015,respectively. Impairment of property and equipment was $0.6 million and $0.4 million for the years ended December 31, 2017 and 2015, respectively.Accrued LiabilitiesAccrued liabilities are as follows (in thousands): December 31, December 31, 2017 2016 Accrued clinical - related parties (see Note 13) $510 $3,542 Accrued clinical and manufacturing 5,462 16,039 Accrued compensation 2,074 6,945 Accrued other 1,004 1,496 Accrued liabilities $9,050 $28,022 5.Collaboration and License AgreementThe Company recognized revenue related to the collaboration and license agreements for the periods presented as follows (in thousands): Year Ended December 31, 2017 2016 2015 Baxalta $— $188,292 $27,802 Daiichi Sankyo 1,556 1,184 2,239 Total collaboration and license revenue $1,556 $189,476 $30,041 Daiichi SankyoIn January 2012, the Company entered into a license agreement with Daiichi Sankyo (the “License Agreement”), under which the Company grantedcertain licenses to Daiichi Sankyo to develop and commercialize biosimilar forms of etanercept and rituximab in Japan, Taiwan, and South Korea with anoption to develop in China. Upon execution of the agreement, Daiichi Sankyo paid a non-refundable, upfront license fee of $10.0 million. The agreementhad an initial term of ten years and contained provisions allowing Daiichi Sankyo to renew the agreement for an additional three years with respect toparticular countries. Daiichi Sankyo also had the right to terminate the agreement, in its entirety or on a country-by-country basis, at any time if thedevelopment and/or commercialization was not deemed viable, if material safety, efficacy or patient tolerability issues could not be remedied or overcome, orduring the opt-out window after the achievement of specified objectives in the agreement. In 2012, Daiichi Sankyo opted out of the development andcommercialization of etanercept in Taiwan and South Korea, and chose not to exercise their option with respect to the development and commercialization ofetanercept and rituximab in China.The Company identified the following deliverables under the agreement: (1) the transfer of intellectual property rights (license), and (2) themanufacture of drug materials for clinical development purposes. The Company considered the provisions of the multiple-element arrangement guidance indetermining how to recognize the total consideration of the agreement. The Company concluded that the license was not a separate unit of accountingbecause Daiichi Sankyo could not benefit from the use of the license rights for their intended purpose96Coherus BioSciences, Inc.Notes to Consolidated Financial Statements without the products manufactured by the Company. Daiichi Sankyo relied upon the Company to manufacture and supply the products necessary for DaiichiSankyo’s development because the related manufacturing know-how specific to the products is proprietary to the Company and Daiichi Sankyo does nothave the right to manufacture the licensed product. The Company determined that neither of the deliverables have standalone value and, therefore, thedeliverables were accounted for as a single unit of accounting with the upfront fee recognized as revenue on a straight-line basis over its estimated period ofperformance of approximately three years. The Company determined that the straight-line method of revenue recognition was most appropriate for thisagreement given there is no discernable pattern of its performance under the arrangement. The Company regularly evaluated the reasonableness of theestimated period of performance and the amortization of deferred revenue was revised as deemed appropriate on a prospective basis. As such, the performanceperiod was extended in September 2014 for two quarters, December 2014 for one quarter, September 2015 for two months, May 2016 for four months andDecember 2016 for six months.In June 2013, the Company and Daiichi entered into a Memorandum of Understanding No. 1 (the “MOU 1”) in which both parties agreed to cooperateand share costs to conduct a global Phase 1 study of a biosimilar form of etanercept. This program was not originally contemplated in the license agreement.Under the MOU 1, the Company was responsible for gathering clinical data, formatting it into a case study report, and conducting the final analysis. TheCompany would transfer the clinical data and other regulatory approval application documents for the product and post marketing to Daiichi Sankyo within90 days after finalization of such documents. Under the MOU 1, Daiichi’s Sankyo’s overall cost sharing responsibility included (i) 33% of the total budgetedcost and (ii) 100% of the cost of the comparator drug (Enbrel) used for the Japanese volunteers. The amounts received from Daiichi Sankyo under this costsharing responsibility were recognized as a reduction in research and development expense as the Company engaged in a research and development projectjointly with Daiichi Sankyo, with both parties incurring costs while actively participating in development activities and both parties sharing costs andpotential benefits of the arrangement. The Company accounted for the MOU 1 as a separate arrangement, which was not deemed to be a material modificationof the original license agreement with Daiichi Sankyo.In January 2014, the Company and Daiichi Sankyo entered into the Memorandum of Understanding No. 2 (the “MOU 2”) in which both parties agreedto cooperate to conduct a global Phase 3 clinical trial in rheumatoid arthritis. In June 2015, the parties also entered into the Memorandum of UnderstandingNo. 3 (the “MOU 3”) in which both parties agreed to cooperate further on a global Phase 3 clinical trial for an open label, safety extension study (“OLSES”)in rheumatoid arthritis. Daiichi Sankyo was responsible for a minimum of 20% of the cost of the clinical trial. The Company also entered into a clinicalsupply agreement as part of MOU 2 and MOU 3 in which the Company supplied finished study drug and study comparator drug for Daiichi Sankyo’s use inthe Japanese portion of the product’s clinical trial. Daiichi Sankyo reimbursed these research and development costs in quarterly advance payments, forwhich the Company recorded $1.1 million as advance payments under license agreement in the consolidated balance sheet as of December 31, 2016. TheCompany recognized the advance payment as a reduction in the research and development expense when the research and development activity wasperformed.In July 2016 and December 2016, the Company entered into three memoranda of understanding (“MOU 4,” “MOU 5” and “MOU 6,” and togetherwith MOU 1, MOU 2 and MOU 3, the “MOUs”) with Daiichi Sankyo. Under MOU 4, MOU 5 and MOU 6, the Company received $4.5 million forreimbursements of certain past costs incurred and the Company recognized these reimbursements as a reduction of research and development expenses whenthe research and development activity was performed. The Company accounted for the above MOUs as a separate arrangement, which was not deemed to be amaterial modification of the License Agreement.In July 2017, Daiichi Sankyo announced its decision, which was accepted by the Company, to discontinue development of the Company’s etanercept(Enbrel) biosimilar product candidate, CHS-0214, in Japan and to conclude the parties’ global open-label safety extension study in rheumatoid arthritis.Pursuant to the License Agreement, the Company regained the rights to develop and commercialize CHS-0214 in Japan. As a result of Daiichi Sankyo’sdecision to opt-out of the development of CHS-0214 in Japan and not having any further performance obligations under the license arrangement, theCompany recognized the remaining deferred revenue of $1.4 million as a collaboration and license revenue during the second quarter of 2017 in itscondensed consolidated statement of operations.On August 9, 2017, the Company and Daiichi Sankyo entered into a letter of agreement, dated July 29, 2017 to terminate the License Agreement,including, any and all MOUs and other agreements executed between the parties relating to CHS-0214.As of December 31, 2017, there was no deferred revenue in the condensed consolidated balance sheet. As of December 31, 2016, $1.6 million ofrevenue was deferred under all arrangements with Daiichi Sankyo, of which $0.9 million was included in current liabilities and $0.7 million was included innon-current liabilities in the consolidated balance sheet.The Company recognized in its consolidated statements of operations a reduction of research and development expense related to the costsreimbursed by Daiichi Sankyo of $4.2 million, $9.7 million and $16.1 million for the years ended December 31, 2017, 2016 and 2015, respectively.97Coherus BioSciences, Inc.Notes to Consolidated Financial Statements BaxaltaThe Company entered into a license agreement in August 2013 and two subsequent amendments thereto with Baxalta Incorporated, Baxalta US Inc.,and Baxalta GmbH (collectively “Baxalta”) (then Baxter International, Inc., part of Shire plc as of June 2016), to develop and commercialize an etanerceptbiosimilar molecule, CHS-0214 worldwide, excluding the U.S., Japan, Taiwan, South Korea, China and most of the Caribbean and South American nations(as amended, the “Baxalta Agreement”).Under the terms of the agreement, the Company was responsible in conducting the development and the regulatory activities, and Baxalta wasresponsible in conducting the commercialization of the etanercept biosimilar product. In consideration of the exclusive, royalty-bearing license to develop,commercialize and use the etanercept biosimilar product, the Company received an upfront payment and was eligible to receive contingent paymentscomposed of clinical development payments and regulatory milestone payments. If the cumulative development costs exceed the cumulative contingentpayments, Baxalta would reimburse the Company for the excess cost as set forth in the agreement up to predetermined limits. Once the etanercept biosimilarproduct commercializes, the Company was entitled to tiered royalties, based on the manufacturing cost as a percentage of net sales of licensed products,ranging from the mid-single digits to the high teens on a country-by-country basis. These royalties were subject to certain offsets and reductions. Theagreement had an initial term of ten years and contained provisions allowing Baxalta to renew the agreement for another three years on a country-by-countrybasis.The Company identified the following deliverables under the license agreement with Baxalta: 1) the transfer of intellectual property rights (license),(2) the obligation to provide research and development services including the manufacturing and supply of clinical product, and (3) the obligation toparticipate on various committees.The Company considered the provisions of the multiple-element arrangement guidance in determining how to recognize the total consideration of theagreement. The Company determined that the license did not have standalone value to Baxalta without the Company’s technical expertise as it relates to thedevelopment of the product candidate and committee participation. Additionally, the license to Baxalta did not include the right to manufacture, or havemanufactured the product during the development stage, or to conduct any process development activities. Therefore, the Company concluded that thesedeliverables represent a single unit of accounting under the multiple-element arrangement guidance.The upfront payment and clinical development payments included contingent payments that were intended to cover development related expensesincurred by the Company, but potentially reimbursable, in part, to Baxalta under certain limited circumstances. The Company concluded that the contingentpayments that contain potentially reimbursable amounts to Baxalta are not substantive milestones under the relevant accounting guidance, since theguidance does not allow the substantive milestone components of a payment to be bifurcated from non-substantive milestone components. The amounts thatwere contingent payments also contained a claw-back feature that, in the event that the Company commercializes the etanercept biosimilar molecule in theU.S. without Baxalta, the Company would have been required to refund a portion of those contingent payments to Baxalta. Therefore, the Company recordedthe portion of the non-substantive contingent payment that contained the claw-back feature as a liability and would have continued to record such liabilityuntil the earlier of: (1) expiration of the license agreement pursuant to its terms in August 2023, (2) the earlier termination of the license agreement, or (3) thedetermination, pursuant to the terms of the license agreement, of the third party to commercialize CHS-0214 in the U.S. These amounts were included in thecontingent liability to collaborator on the consolidated balance sheets. The portion of the non-substantive milestone payment that did not contain the claw-back feature were recorded as deferred revenue and recognized as license revenue on a straight-line basis over the remaining estimated performance period ofapproximately three years. The Company determined that there was no other method that was more appropriate than the straight-line method of revenuerecognition for this agreement given there was no discernable pattern of performance under the arrangement. The Company regularly evaluated thereasonableness of the estimated period of performance and revised the amortization of deferred revenue on a prospective basis, as such, the performanceperiod were extended in September 2014 for two quarters, December 2014 for one quarter, and September 2015 for two months, prior to the termination ofthe Baxalta Agreement.The regulatory milestone payments were considered substantive as the achievement was subject to the significant uncertainty as to the outcome of thedevelopment efforts, by the Company, over an extended period of time, and the Company’s substantive performance obligation under the license agreement,which included efforts associated with the clinical trials and filing and approval of drug applications by regulatory authorities in various countries.Therefore, the Company recognized revenue associated with these respective contingent payments when each of the specific events were achieved.On September 26, 2016, Shire issued a termination notice of the Baxalta Agreement, in its entirety as part of its strategic portfolio review after itsacquisition of Baxalta. Upon the termination of the Baxalta Agreement, the Company regained from Shire all development and commercial rights previouslylicensed under the CHS-0214. There were no further contractual obligations and the Company recognized the outstanding balances of deferred revenue of$85.8 million and contingent liability to collaborator of $76.7 million as revenue in its consolidated statements of operations in 2016. 98Coherus BioSciences, Inc.Notes to Consolidated Financial Statements 6.Debt ObligationsConvertible NotesOn February 29, 2016, the Company issued and sold $100.0 million aggregate principal amount of its 8.2% Convertible Senior Notes (the“Convertible Notes”) and received total net proceeds of approximately $99.2 million, after deducting issuance costs of $0.8 million. The Convertible Notesconstitute general, senior unsubordinated obligations of the Company and are guaranteed by certain subsidiaries of the Company. The Convertible Notesbear interest at a fixed coupon rate of 8.2% per annum payable quarterly in arrears on March 31, June 30, September 30 and December 31 of each year, whichcommenced on March 31, 2016, and mature on March 31, 2022, unless earlier converted, redeemed or repurchased. If the Company fails to satisfy certainregistration or reporting requirements, then additional interest will accrue on the Convertible Notes at a rate of up to 0.50% per annum in the aggregate. TheConvertible Notes also bear a premium of 9% of their principal amount, which is payable when the Convertible Notes mature or are repurchased or redeemedby the Company.The Convertible Notes were issued to Healthcare Royalty Partners III, L.P., for $75.0 million in aggregate principal amount, and to three related partyinvestors, KKR Biosimilar L.P., MX II Associates LLC, and KMG Capital Partners, LLC, for $20.0 million, $4.0 million, and $1.0 million, respectively, inaggregate principal amount.The Convertible Notes are convertible at the option of the holder at any time prior to the close of business on the business day immediately precedingMarch 31, 2022 at the initial conversion rate of 44.7387 shares of common stock per $1,000 principal amount of Convertible Notes, which is equivalent to aninitial conversion price of approximately $22.35 per share, and is subject to adjustment in certain events. Upon conversion of the Convertible Notes by aholder, the holder will receive shares of the Company’s common stock together, if applicable, with cash in lieu of any fractional share.The Convertible Notes are redeemable in whole, and not in part, at the Company’s option on or after March 31, 2020, if the last reported sale price pershare of common stock exceeds 160% of the conversion price on 20 or more trading days during the 30 consecutive trading days preceding the date on whichthe Company sends notice of such redemption to the holders of the Convertible Notes. At maturity or redemption, if not earlier converted, the Company willpay 109% of the principal amount of the Convertible Notes maturing or being redeemed, together with accrued and unpaid interest, in cash.The Convertible Notes contain customary events of default (as defined in the Convertible Note purchase agreement), the occurrence of which couldresult in the acceleration of all amounts due under the Convertible Notes. These events of default include, among others, certain failures to pay amounts dueon the Convertible Notes, to deliver the consideration due upon conversion or to settle uninsured judgments, decrees or orders exceeding $10.0 million, andcertain defaults on other indebtedness for money borrowed of at least $10.0 million, insolvency-related events and breaches of representations, subject, insome cases, to a cure period. The Convertible Notes also contain covenants restricting the Company’s ability to incur additional indebtedness for borrowedmoney or convertible preferred stock and to pay dividends or make distributions on the Company’s equity interests, subject to certain exceptions. As ofDecember 31, 2017, the Company was in full compliance with these covenants and there were no events of default under the Convertible Notes.The Convertible Notes are accounted for in accordance with ASC Subtopic 470-20, Debt with Conversion and Other Options. Pursuant to ASCSubtopic 470-20, the Company evaluated the features embedded in the Convertible Notes and concluded that the embedded features are not required to bebifurcated and accounted for separately from the host debt instrument.The Company granted the holders of the Convertible Notes certain registration rights requiring the Company to register, under the Securities Act of1933, as amended, the resale of the shares of common stock issuable upon conversion or settlement of the Convertible Notes.The following table summarizes information about the components of the Convertible Notes as of December 31, 2017 (in thousands): December 31, 2017 Principal amount of the Convertible Notes $81,750 Unamortized debt discount and debt issuance costs (5,544)Convertible Notes $76,206 Principal amount of the Convertible Notes - related parties $27,250 Unamortized debt discount and debt issuance costs - related parties (1,848)Convertible Notes - related parties $25,402 Total Convertible Notes $101,608 If the Convertible Notes were converted on December 31, 2017, the holders of the Convertible Notes would receive common shares with an aggregatevalue of $39.4 million based on the Company’s closing stock price of $8.80.99Coherus BioSciences, Inc.Notes to Consolidated Financial Statements The following table presents the components of interest expense of the Convertible Notes for the year ended December 31, 2017 (in thousands): Year Ended December 31, 2017 Stated coupon interest $6,150 Accretion of debt discount and debt issuance costs 1,014 Interest expense $7,164 Stated coupon interest - related parties $2,050 Accretion of debt discount and debt issuance costs - related parties 338 Interest expense - related parties $2,388 Total interest expense $9,552 The remaining unamortized debt discount and debt offering costs related to the Company’s Convertible Notes of approximately $7.4 million as ofDecember 31, 2017, will be amortized using the effective interest rate over the remaining term of the Convertible Notes of 4.25 years. The annual effectiveinterest rate is 9.48% for the Convertible Notes. During the years ended December 31, 2017 and 2016, the Company recognized total interest expense of $9.6million and $7.9 million related to the Convertible Notes’ accrued interest and amortization of the debt discount, respectively.Future payments on the Convertible Notes as of December 31, 2017 are as follows (in thousands): Year ending December 31, 2018 $8,200 2019 8,200 2020 8,200 2021 8,200 2022 111,050 Total minimum payments 143,850 Less amount representing interest (34,850)Convertible Notes, principal amount 109,000 Less debt discount and debt issuance costs on Convertible Notes (7,392)Net carrying amount of Convertible Notes $101,608 7.Commitments and ContingenciesPurchase CommitmentsThe Company enters into contracts in the normal course of business with contract research organizations for preclinical studies and clinical trials andcontract manufacturing organizations for the manufacture of drug materials. The contracts are cancellable, with varying provisions regarding termination. If acontract with a specific vendor were to be terminated, the Company would only be obligated for products or services that the Company had received as of theeffective date of the termination and any applicable cancellation fees.ContingenciesOn March 3, 2017, Amgen Inc. and Amgen USA Inc. (collectively “Amgen”) filed an action against the Company, KBI Biopharma Inc., theCompany’s employee Howard S. Weiser and Does 1-20 in the Superior Court of the State of California, County of Ventura. The complaint alleges that theCompany engaged in unfair competition and improperly solicited and hired certain former Amgen employees in order to acquire and access trade secrets andother confidential information belonging to Amgen. On June 1, 2017, Amgen filed a Second Amended Complaint, which alleges as to Coherus (i) unfaircompetition under California Business and Professions Code Section 17200 et seq., (ii) misappropriation of trade secrets, (iii) aiding and abetting breach ofduty of loyalty and (iv) tortious interference with contract. As to defendant Weiser, the Second Amended Complaint alleges (i) unfair competition underCalifornia Business and Professions Code Section 17200 et seq., (ii) misappropriation of trade secrets, (iii) breach of contract, (iv) violation of Penal CodeSection 502 and (v) breach of duty of loyalty. KBI Biopharma Inc. is not named as a defendant in the Second Amended Complaint. The Second AmendedComplaint seeks injunctive relief and monetary damages. Although Amgen has indicated it intends to seek a preliminary injunction, no motion has beenfiled yet. The court has set a trial date of January 22, 2019.On May 10, 2017, Amgen Inc. and Amgen Manufacturing Inc. filed an action against the Company in the U.S. District Court for the District ofDelaware alleging infringement of one or more claims of Amgen’s US patent 8,273,707 (the “707 patent”) under 35 U.S.C. § 271. The complaint seeksinjunctive relief, monetary damages and attorney fees. On September 18, 2017, the court issued a scheduling order with100Coherus BioSciences, Inc.Notes to Consolidated Financial Statements a claim construction hearing set for June 25, 2018, and a trial date of September 16, 2019. On December 7, 2017, the U.S. Magistrate Judge issued under seala Report and Recommendation to the District Court recommending that the District Court grant, with prejudice, the Company’s pending motion to dismissAmgen’s complaint for failure to state a claim pursuant to Federal Rule of Civil Procedure 12(b)(6).The District Court issued a publicly available version ofthe Magistrate Judge’s Report and Recommendation on January 11, 2018. The Company expects the District Court to decide in the latter part of the first orearly part of the second quarter of 2018 whether to adopt the Magistrate Judge’s recommendation.The Company believes that these lawsuits are without merit and intends to vigorously defend its position. However, if Amgen were to be successful inits effort to seek injunctive relief, these legal actions may delay the timing of CHS-1701 commercial release, and negatively affect the Company’s futurerevenues and results of operations. It is not possible at this time to determine the likelihood of an unfavorable outcome or an estimate of the amount or rangeof any potential loss.Facility LeasesThe Company leases office spaces for its corporate headquarters in Redwood City, California and for laboratory facilities in Camarillo, Californiaunder operating lease agreements. On July 6, 2015, the Company entered into a new office lease (the “New Lease”) with Hudson 333 Twin Dolphin Plaza,LLC (the “Landlord”) to lease approximately 27,532 square feet of office space located in Redwood City, California (the “Premises”) for the Company’s newcorporate headquarters. The Company leased office space located in Redwood City, California, pursuant to a lease dated September 26, 2011 (as amended,the “Current Lease”), which expired pursuant to the terms described below under “Amendment to Current Lease.” The New Lease commenced on December1, 2015 and the Company moved into the new facility in December 2015.The Company entered into the Seventh Amendment to the Current Lease (the “Seventh Amendment”) with its current landlord when the New Leasewas entered into. The Seventh Amendment provided early termination of the Current Lease, which was effective in December 2015 when the New Leasedcommenced.The New Lease provided for annual base rent of approximately $1.6 million in the first year of the Lease Term, which increases on an annual basis upto approximately $1.9 million for the final year of the Lease Term. The New Lease also provided for certain limited rent abatements in the second year of theLease Term. The Company will be entitled to a one-time improvement allowance of approximately $1.2 million for costs related to the design andconstruction of Company improvements that are permanently affixed to the Premises.In addition, the Company obtained a standby letter of credit (the “Letter of Credit”) in an amount of approximately $0.8 million, which may be drawndown by the Landlord to be applied for certain purposes upon the Company’s breach of any provisions under the New Lease. Provided that no default occursunder the terms of the New Lease, the Company will be entitled to periodically reduce the amount of the Letter of Credit down to approximately $0.3 millionas of the last day of the sixtieth full calendar month of the Lease Term. The Company has recorded the $0.8 million Letter of Credit in restricted cash, non-current within its consolidated balance sheet at December 31, 2017 and 2016.On September 21, 2016, the Company entered into the Second Amendment (the “Second Amendment”) to the New Lease to lease additional officespace of approximately 12,809 square feet such that the total headquarters lease space is approximately 40,341 square feet (“Combined Lease Space”). TheSecond Amendment commenced on October 24, 2016, and ends on November 30, 2022, which coincides with the New Lease termination date. TheCombined Lease Space contains a one-time option to extend the lease term for five years.The Second Amendment provides for annual base rent on the additional office space of approximately $0.8 million in the first year of the SecondAmendment term, which increases on an annual basis up to approximately $0.9 million for the final year of the Second Amendment term and provides forcertain limited rent abatements on the additional office space. The Company is also entitled to a one-time improvement allowance of approximately $0.2million that can be applied towards specified items, including tenant improvement work and base rent.On December 27, 2016, the Company entered into the Third Amendment (the “Third Amendment”) to the Camarillo lease, the Company’s laboratoryfacilities, to extend the lease through June 30, 2019 resulting in two additional years of base rent totaling $279,000. In addition, the Third Amendmentcontains a one-time option to extend the Camarillo lease term for three years.Rent expense is recognized on a straight-line basis over the term of the leases and accordingly, the Company records the difference between cash rentpayments and the recognition of rent expense as a deferred rent liability.101Coherus BioSciences, Inc.Notes to Consolidated Financial Statements The future minimum lease payments for all of the Company’s leased facilities as of December 31, 2017 are as follows (in thousands): Year ending December 31, 2018 $2,601 2019 2,588 2020 2,595 2021 2,672 2022 2,518 Total minimum lease payments $12,974 Rent expense was $2.3 million, $1.7 million and $1.8 million for the years ended December 31, 2017, 2016 and 2015, respectively.Guarantees and IndemnificationsIn the normal course of business, the Company enters into contracts and agreements that contain a variety of representations and warranties andprovide for general indemnifications. The Company’s exposure under these agreements is unknown because it involves claims that may be made against theCompany in the 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 itsindemnification obligations. However, the Company may record charges in the future as a result of these indemnification obligations. The Company wouldassess the likelihood of any adverse judgments or related claims, as well as ranges of probable losses. In the cases where the Company believes that areasonably possible or probable loss exists, it will disclose the facts and circumstances of the claims, including an estimate range, if possible. 8.Stockholders’ EquityCommon Stock OfferingsIn January 2016, the Company’s shelf registration statement on Form S-3 (File No. 333-208625) (the “Shelf Registration Statement”) was declaredeffective by the SEC. In May and June 2016, the Company issued and sold 4,025,000 shares of common stock at a price of $18.00 per share. The Companyreceived total gross proceeds from the offering of $72.5 million. After deducting underwriting discounts and commissions of $3.0 million and offeringexpense of $0.5 million, the net proceeds were $69.0 million.On October 28, 2016, the Company entered into a sales agreement (the “Sales Agreement”) with Cowen to sell shares of the Company’s commonstock, with aggregate gross sales proceeds of up to $100,000,000, from time to time, through an at-the-market equity offering program under which Cowenwill act as its sales agent (the “ATM Offering Program”). Cowen is entitled to compensation for its services equal to 3.0% of the gross proceeds of any sharesof common stock sold through Cowen under the Sales Agreement. The Company has no obligation to sell any shares under the Sales Agreement, and may atany time suspend solicitation and offers under the Sales Agreement. The shares will be issued pursuant to the Company’s Shelf Registration Statement. TheCompany filed a prospectus supplement, dated October 28, 2016, with the SEC in connection with the offer and sale of the shares pursuant to the SalesAgreement. In November and December 2016, the Company sold 2,015,987 shares of common stock at a weighted average price of $28.04 per share throughits ATM Offering Program and received total gross proceeds in 2016 of $56.5 million. After deducting commissions of $1.7 million and offering expenses of$0.2 million, the net proceeds were $54.6 million. In January and December 2017, the Company sold 925,999 shares of common stock at a weighted averageprice of $12.42 per share through its ATM Offering Program and received total gross proceeds of $11.5 million. After deducting commission of $0.3 millionand offering expense of $0.1 million, the net proceeds were $11.1 million. In January 2018, the Company issued and sold 183,316 shares of common stock ata weighted average price of $9.38 per share through its ATM Offering Program and received total net proceeds of $1.7 million.In February and March 2017, the Company issued and sold 5,294,902 shares of common stock at a price of $24.25 per share. The Company receivedtotal gross proceeds from the offering of $128.4 million. After deducting underwriting discounts and commissions of $7.7 million and offering expense of$0.3 million, the net proceeds were $120.4 million.In August 2017, the Company issued and sold an aggregate of 6,556,116 shares of common stock to V-Sciences Investments Pte Ltd, a private limitedSingapore company, (“Temasek”) in a private placement transaction at an offering price of $11.4397 per share for gross proceeds of $75.0 million. Afterdeducting offering expenses of $0.1 million, the net proceeds were $74.9 million. Pursuant to the stock purchase agreement, Temasek may purchaseadditional shares of common stock equal to gross proceeds of $75.0 million, subject to certain conditions. On September 22, 2017, the Company filed aregistration statement with the SEC registering the resale of the common stock sold and issued in the private placement transaction as of August 2017, and itwas declared effective by the SEC on October 16, 2017.102Coherus BioSciences, Inc.Notes to Consolidated Financial Statements In December 2017, the Company issued an aggregate of 776,104 shares of common stock to KBI Biopharma, Inc., a contract manufacturingorganization (“KBI”), in a private placement transaction at an offering price of $8.7746 per share amounting to $6.8 million. Pursuant to the purchaseagreement, as consideration for the issuance of the shares, the Company will not be charged the (i) $4.1 million postponement fee, owed by the Companypursuant to the master service agreement for the postponement of the start of the 2017 manufacturing campaign of CHS-1701, (ii) $2.7 million campaignreservation fee for the second 2018 manufacturing campaign of CHS-1701 and (iii) increase of certain batch fees until the 2018 manufacturing campaign ofCHS-1701 begins. The Company provided to KBI the right to receive contingent cash royalty payments, in an amount not to exceed $0.7 million inaggregate, upon the achievement of certain conditions related to the timing of the delivery by KBI to the Company of CHS-1701 (see Note 7). 9.Stock Option Plans and Stock-Based CompensationRestricted Common Stock (“Founders Shares”)During 2010 and 2011, the Company issued shares of restricted common stock to its founders under our founders’ shares agreements (such shares, the“Founders’ Shares”). As of December 31, 2015, all shares were fully vested and there were no shares subject to repurchase. The Company recognized stock-based compensation expense within its consolidated statement of operations of $9,000 for the year ended December 31, 2015, related to shares of commonstock granted pursuant to the Founders’ Shares agreements.Equity Incentive PlansIn October 2014, the Company’s board of directors and its stockholders adopted the 2014 Equity Incentive Plan (the “2014 Plan”), which becameeffective upon the closing of the Company’s IPO on November 6, 2014. The Company is authorized to issue 11,058,518 shares of common stock under the2014 Plan and had 171,672 shares of common stock available for future issuance as of December 31, 2017. The 2014 Plan is subject to automatic annualincreases in the number of shares available for issuance on the first business day of each fiscal year equal to four percent (4%) of the number of shares of theCompany’s common stock outstanding as of such date or a lesser number of shares as determined by the Company’s board of directors. All remaining sharesunder the Company’s 2010 Stock Plan (the “2010 Plan”) were transferred to the 2014 Plan upon adoption and any additional shares than would otherwisereturn to the 2010 Plan as a result of forfeiture, termination or expiration of the awards will return to the 2014 Plan. The 2014 Plan provided for the Companyto grant shares and/or options to purchase shares of common stock to employees, directors, consultants and other service providers.In June 2016, the Company adopted the 2016 Employment Commencement Incentive Plan (the “2016 Plan”). The 2016 Plan is designed to complywith the inducement exemption contained in Nasdaq’s Rule 5635(c)(4), which provides for the grant of non-qualified stock options, restricted stock units,restricted stock awards, performance awards, dividend equivalents, deferred stock awards, deferred stock units, stock payment and stock appreciation rights toa person not previously an employee or director of the Company, or following a bona fide period of non-employment, as an inducement material to theindividual’s entering into employment with the Company. The Company reserved for future issuance under the 2016 Plan a total of 1,000,000 shares of itscommon stock for new employees. The 2016 Plan does not provide for any annual increases in the number of shares available. As of December 31, 2017, theCompany is authorized to issue 994,000 shares of common stock under the 2016 Plan and had 345,500 shares of common stock available for future issuance.Stock Options Incentive stock options and non-statutory stock options may be granted with exercise prices of not less than the fair value of the common stock on thedate of grant. These stock options were granted to generally vest over four years, expire in ten years from the date of grant and are generally exercisable aftervesting.The following table sets forth the summary of option activities under the 2016 and 2014 Plans: Options Outstanding Number ofOptions Weighted-AverageExercise Price Balances at December 31, 2016 10,150,136 $15.636 Authorized — — Granted - at fair value 2,890,250 17.403 Exercised (162,978) 2.958 Forfeited /cancelled (1,471,189) 22.955 Balances at December 31, 2017 11,406,219 $15.321 103Coherus BioSciences, Inc.Notes to Consolidated Financial Statements Additional information related to the status of options as of December 31, 2017 is summarized as follows: Number ofOptions Weighted-AverageExercisePrice Weighted-AverageContractualTerms(Years) AggregateIntrinsic Value(in thousands) Options outstanding 11,406,219 $15.321 7.04 $24,236 Options vested and expected to vest 11,406,219 $15.321 7.00 $24,236 Options vested and exercisable 6,618,281 $12.617 5.95 $23,424 During the years ended December 31, 2017, 2016 and 2015, the total estimated fair value of the options vested was $29.4 million, $23.2 million and$14.6 million, respectively and the estimated weighted-average grant-date fair value of options granted was $11.70, $13.32 and $18.42 per share,respectively. The aggregate intrinsic value of options exercised during the years ended December 31, 2017, 2016 and 2015 was $2.1 million, $15.8 millionand $22.4 million, respectively.The Company recognized stock-based compensation expenses of $29.0 million, $23.2 million and $14.7 million in 2017, 2016 and 2015,respectively, related to employee stock options. As of December 31, 2017, total unrecognized stock-based compensation expenses related to unvestedemployee stock options was $51.9 million, which is expected to be recognized on a straight-line basis over a weighted-average period of approximately 2.20years.Restricted Stock UnitsIn August 2017, the Compensation Committee of the Company’s board of directors approved the granting of restricted stock units (“RSUs”) to itsemployees. RSUs are share awards that entitle the holder to receive freely tradable shares of our common stock upon vesting. The RSUs cannot be transferredand are subject to forfeiture if the holder’s employment terminates prior to the release of the vesting restrictions. The Company’s RSUs generally vest fromthe applicable grant date according to the following vesting schedules: 50% after twelve months, 25% after 18 months, and 25% after 24 months, providedthe employee remains continuously employed with the Company. The fair value of RSUs is equal to the closing price of our common stock on the applicablegrant date of the RSUs.The following table sets forth the summary of RSUs activity, under the 2014 Plan: RSUs Outstanding Number ofRSUs Weighted-AverageGrant Date FairValue Balances at December 31, 2016 — $— RSUs granted 457,207 10.432 RSUs vested (316,205) 8.935 RSUs cancelled (20,625) 12.700 Balances at December 31, 2017 120,377 $13.975 During the year ended December 31, 2017, the total estimated grant date fair value of RSUs was $6.4 million, including a $4.3 million 2017 bonuspayout settled in RSUs. The total fair value of RSUs vested was $2.9 million, including a $2.7 million 2017 bonus payout settled in RSUs. The estimatedweighted-average grant-date fair value of RSUs granted was $10.43 per share.The Company recognized stock-based compensation expenses of $0.6 million in 2017, related to RSUs. As of December 31, 2017, total unrecognizedstock-based compensation expenses related to unvested RSUs was $1.2 million, which is expected to be recognized on a straight-line basis over a weighted-average period of approximately 1.52 years.Nonemployees Stock-Based CompensationThe Company granted 60,000, 248,650 and 198,750 stock options to purchase shares of common stock to nonemployees during the years endedDecember 31, 2017, 2016 and 2015, respectively. The weighted-average exercise price of the options granted in 2017, 2016 and 2015 was $13.47, $18.16and $26.51 per share, respectively. For the years ended December 31, 2017, 2016 and 2015, the Company recorded stock-based compensation expenserelated to options granted to nonemployees of $1.9 million, $4.2 million and $2.0 million, respectively. The Company remeasures the fair value of theunvested nonemployee options at each period using the Black-Scholes option-pricing model reflecting the same assumptions as applied to employee optionsin each of the reported years, other than the expected life, which is assumed to be the remaining contractual life of the options.104Coherus BioSciences, Inc.Notes to Consolidated Financial Statements Employee Stock Purchase PlanIn October 2014, the Company’s board of directors and its stockholders approved the establishment of the 2014 Employee Stock Purchase Plan(“ESPP”). The ESPP provides for annual increases in the number of shares available for issuance on the first business day of each fiscal year, beginning withthe Company’s fiscal year following the year of this offering, equal to the lesser of one percent (1%) of the number of shares of the Company’s common stockoutstanding as of such date, 320,000 shares of common stock, or a number of shares as determined by the Company’s board of directors. The ESPP had1,500,715 shares of common stock available for future issuance as of December 31, 2017. Eligible employees may purchase common stock at 85% of thelesser of the fair market value of the Company’s common stock on the first or last day of the offering period. The first offering period of ESPP commenced onNovember 16, 2017. The Company recognized stock-based compensation expenses of $80,000 in 2017 related to the ESPP. As of December 31, 2017, therewas $0.2 million of unrecognized compensation expense associated with the ESPP, which is expected to be recognized over an estimated weighted-averageperiod of five months.Stock-Based CompensationThe stock-based compensation expense is reflected in the consolidated statements of operations as follows (in thousands): Year Ended December 31, 2017 2016 2015 Research and development $15,104 $13,592 $8,038 General and administrative 18,293 13,829 8,683 $33,397 $27,421 $16,721 The Company has a change of control and involuntary termination benefit agreement in place with the Company’s senior executives. The agreementprovided for severance terms, acceleration of options and extension of exercise period in the event of a change of control or involuntary termination. For theyear ended December 31, 2017, the Company recorded a non-cash stock-based compensation expense for option modifications of $0.5 million and $1.3million, which was reflected in research and development and general and administrative expenses in the consolidated statement of operations, respectively.The stock-based compensation expense for the option modifications were primarily due to the Company’s restructuring plan completed in June 2017 (seeNote 10).Valuation Assumptions of Awards Granted to EmployeesThe Company estimated the fair value of each stock option and awards granted under the ESPP on the date of grant using the Black-Scholes option-pricing model. The following table illustrates the weighted average assumptions for the Black-Scholes option-pricing model used in determining the fairvalue of the awards during the years ended December 31, 2017, 2016 and 2015: Year Ended December 31, 2017 2016 2015 Expected term (years) Stock options 6.00 6.00 6.00 ESPP 0.50 — — Expected volatility Stock options 76% 75% 78%ESPP 68% — — Risk-free interest rate Stock options 2.01% 1.42% 1.62%ESPP 1.42% — — Expected dividend yield Stock options 0% 0% 0%ESPP 0% — — Expected Term: The expected term represents the period for which the stock-based awards are expected to be outstanding and is based on the options’vesting term and contractual term.Expected Volatility: The Company used an average historical stock price volatility of industry peers as representative of future stock price volatilitysince the Company does not have sufficient trading history for its common stock.105Coherus BioSciences, Inc.Notes to Consolidated Financial Statements Risk-Free Interest Rate: The Company based the risk-free interest rate by using an equivalent to the expected term based on the U.S. Treasury constantmaturity rate as of the date of grant.Expected Dividends: The Company has not paid and does not anticipate paying any dividends in the near future, and therefore used an expecteddividend yield of zero in the valuation model 10.RestructuringOn June 21, 2017, the Company commenced and completed a restructuring plan to reduce operating costs to better align its workforce with the needsof its business following the FDA’s June 2017 issuance of a CRL for its BLA for CHS-1701, in which the FDA stated that it cannot approve the Company’sBLA for CHS-1701 in its present form and provided recommendations to the Company to address the issues raised in the letter.In connection with the restructuring, the Company recorded aggregate restructuring charges in its consolidated statement of operations of $3.6 millionin June 2017. The restructuring charges included one-time termination fees and other employee-related costs of $1.0 million and $1.1 million in research anddevelopment and general and administrative expenses in the consolidated statement of operations, respectively. Additionally, non-cash stock-basedcompensation expense related to the acceleration of stock options and the extension of post-termination stock option exercise periods of $0.3 million and$1.2 million was reflected in research and development and general and administrative expenses in the consolidated statement of operations, respectively. Asof December 31, 2017, the Company has paid out $2.1 million in personnel-related restructuring charges and expects to pay the remainder by the end of thefirst quarter of 2018. As of December 31, 2017, $0.1 million of restructuring liabilities remain on the Company’s consolidated balance sheet. 11.Income TaxesThe Company utilizes the liability method of accounting for deferred income taxes. Under this method, deferred tax liabilities and assets arerecognized for the expected future tax consequences of temporary differences between the carrying amounts and the tax basis of assets and liabilities. Avaluation allowance is established against deferred tax assets because, based on the weight of available evidence, it is more likely than not that some or all ofthe deferred tax assets will not be realized. The Company’s policy is to record interest and penalties on uncertain tax positions as income tax expense.The components of loss before income taxes are as follows (in thousands): Year Ended December 31, 2017 2016 2015 Domestic $(222,674) $(95,776) $(220,059)Foreign (15,496) (31,561) (3,201)Total $(238,170) $(127,337) $(223,260) There was no provision for income taxes for all years presented due to the establishment of a full valuation allowance against the Company’s deferredtax assets.A reconciliation of the statutory U.S. federal rate to the Company’s effective tax rate is as follows: Year Ended December 31, 2017 2016 2015 Percent of pre-tax income: U.S. federal statutory income tax rate 34.00% 34.00% 34.00%State taxes, net of federal benefit 0.80 1.98 0.70 Foreign rate differences (2.21) (8.43) (0.49)Permanent items (0.19) (2.02) (1.25)Research and development credit 2.10 8.38 2.46 Effect in NOLs due to adoption of ASU 2016-09 4.55 — — U.S. Tax Reform tax rate change (36.90) — — Other (0.21) (0.13) 0.57 Change in valuation allowance (1.94) (33.78) (35.99)Effective income tax rate —% —% —% 106Coherus BioSciences, Inc.Notes to Consolidated Financial Statements Significant components of the Company’s net deferred tax assets as of December 31, 2017 and 2016 consist of the following (in thousands): December 31, 2017 2016 Net operating loss carryforwards $134,420 $136,854 Research and development credits 34,435 26,172 Depreciation and amortization 336 645 Stock-based compensation 13,119 11,995 Other accruals 655 2,495 Deferred revenue — 531 Gross deferred tax assets 182,965 178,692 In-process research and development (550) (891)Gross deferred tax liabilities (550) (891)Total net deferred tax asset 182,415 177,801 Less valuation allowance (182,415) (177,801)Net deferred tax assets $— $— On December 22, 2017, the Tax Cuts and Jobs Act of 2017 (the “Tax Act”) was signed into law. Accounting Standards Codification (ASC) 740,Income Taxes, requires companies to recognize the effect of the tax law changes in the period of enactment. However, the SEC staff issued Staff AccountingBulletin 118, which will allow companies to record provisional amounts during a measurement period that is similar to the measurement period used whenaccounting for business combinations. The Company has adjusted its deferred tax assets and liabilities based on the reduction of the U.S. federal corporatetax rate from 35% to 21% and assessed the realizability of its deferred tax assets based on the current understanding of the provisions of the new law. TheCompany considers its accounting for the impacts of the new law to be provisional and will continue to assess the impact of the recently enacted tax law onits business and consolidated financial statements over the next twelve months.The valuation allowance increased $4.6 million, $43.0 million and $79.2 million during the years ended December 31, 2017, 2016 and 2015,respectively.As of December 31, 2017, the Company had federal net operating loss carryforwards of approximately $624.3 million, which will start to expirebeginning in 2031, and various state net operating loss carryforwards of approximately $43.6 million, which have various expiration dates beginning in2031. Utilization of the net operating loss carryforwards and credits may be subject to a substantial annual limitation due to the ownership change limitationsprovided by Section 382 of the Internal Revenue Code of 1986, as amended, and similar state provisions. The annual limitation may result in the expirationof net operating losses and credits before utilization. Under the new enacted tax law, the carry forward period of net operating losses generated from 2018forward is indefinite. However, the carryforward period for net operating losses generated prior to 2018 remains the same. Therefore, the annual limitationmay result in the expiration of certain net operating losses and tax credit carryforwards before their utilization.As of December 31, 2017, the Company had federal research and development credit carryforwards of approximately $37.5 million, which will start toexpire in 2031, and state research and development credit carryforwards of approximately $14.8 million, which can be carried forward indefinitely.In assessing the realizability of deferred tax assets, the Company considers whether it is more likely than not that some portion or all of the deferredtax assets will not be realized. The ultimate realization of deferred tax assets is dependent upon the generation of future taxable income during the periods inwhich the temporary differences representing net future deductible amounts become deductible. Due to the Company’s history of losses, and lack of otherpositive evidence, the Company has determined that it is more likely than not that its net deferred tax assets will not be realized, and therefore, the netdeferred tax assets are fully offset by a valuation allowance at December 31, 2017 and 2016. The deferred tax assets were primarily comprised of federal andstate tax net operating losses and tax credit carryforwards. Utilization of the net operating loss and tax credit carryforwards may be subject to an annuallimitation due to historical or future ownership percentage change rules provided by the Internal Review Code of 1986, and similar state provisions. Theannual limitation may result in the expiration of certain net operating loss and tax credit carryforwards before their utilization.The Company adopted ASU 2016-09 on January 1, 2017. Under this guidance, on a prospective basis, companies will no longer record excess taxbenefits and certain tax deficiencies in additional paid-in capital. Instead, they will record all excess tax benefits and tax deficiencies as income tax expenseor benefit in the statement of operations. In addition, the guidance eliminates the requirement that excess tax benefits be realized before companies canrecognize them. The standard requires a cumulative-effect adjustment for previously unrecognized excess tax benefits in opening retained earnings in theannual period of adoption. As of January 1, 2017, the Company had a previously unrecognized deferred tax asset of $10.8 million relating to the excess taxbenefits. Upon adoption, the Company recognized this107Coherus BioSciences, Inc.Notes to Consolidated Financial Statements excess tax benefit as a deferred tax asset with a corresponding increase to its deferred tax asset valuation allowance. Additionally, as provided for under thisnew guidance, the Company elected to account for forfeitures as they occur. The adoption of this standard did not have a material impact on the Company’sfinancial statements.The Company files U.S, California and other state income tax returns with varying statutes of limitations. The tax years from 2011 forward remainopen to examination due to the carryover of unused net operating losses and tax credits.A reconciliation of the Company’s unrecognized tax benefits for the years ended December 31, 2017, 2016 and 2015 is as follows (in thousands): Year Ended December 31, 2017 2016 2015 Balance at beginning of year $18,682 $10,605 $3,816 Additions based on tax positions related to current year 3,387 6,111 3,633 Additions for tax positions of prior years (6,387) 1,966 3,156 Balance at end of year $15,682 $18,682 $10,605 As of December 31, 2017 and 2016, the Company had approximately $15.7 million and $18.7 million, respectively, of unrecognized benefits, none ofwhich would currently affect the Company’s effective tax rate if recognized due to the Company’s deferred tax assets being fully offset by a valuationallowance. The Company does not believe there will be any material changes in its unrecognized tax positions over the next twelve months. During the yearsended December 31, 2017, 2016 and 2015, the Company did not recognize accrued interest and penalties related to unrecognized tax benefits. The Companydoes not anticipate a material adjustment of unrecognized tax benefits during the next 12 months as reductions for tax positions of prior years. 12.Net Loss Per Share Attributable to CoherusThe following table sets forth the computation of the basic and diluted net loss per share attributable to Coherus (in thousands, except share and pershare data): Years Ended December 31, 2017 2016 2015 Numerator: Net loss attributable to Coherus $(238,170) $(127,337) $(223,260)Denominator: Weighted-average common shares outstanding 53,133,620 41,912,300 37,125,617 Less: weighted-average unvested common shares subject to repurchase (1) — — (3,609)Weighted-average number of shares used in computing net loss per share attributable to Coherus, basic and diluted 53,133,620 41,912,300 37,122,008 Net loss per share attributable to Coherus, basic and diluted $(4.48) $(3.04) $(6.01) (1)Shares were excluded as such shares represent restricted common stock (founders’ shares), which vest contingently upon the holders’ continuedservices to the Company.The following outstanding dilutive potential shares have been excluded from the calculation of diluted net loss per share attributable to Coherus dueto their anti-dilutive effect: Year Ended December 31, 2017 2016 2015 Stock options, including purchases from contributions to ESPP 11,433,069 10,150,136 7,808,842 Restricted stock units 120,377 — — Shares issuable upon conversion of Convertible Notes 4,473,871 4,473,871 — Total 16,027,317 14,624,007 7,808,842 In February 2018, the Company’s board of directors approved the Company’s refresh option grant of 2,490,100 shares to the employees and directors. 108Coherus BioSciences, Inc.Notes to Consolidated Financial Statements 13.Related Party Transactions Transactions Associated with Medpace AgreementOne member of the Company’s board of directors is also the chief executive officer of Medpace Inc. (“Medpace”). As such, Medpace was deemed to bea related party. As of December 31, 2017, the Company had $0.9 million in prepaid assets (prepaid clinical and other–related parties), $0.2 million inaccounts payable–related parties, and $0.5 million in accrued and other liabilities (accrued clinical–related parties), all reflected on the Company’sconsolidated balance sheet associated with Medpace. As of December 31, 2016, the Company had $3.7 million in prepaid assets (prepaid clinical and other–related parties), $2.2 million in current other assets, $0.9 million in accounts payable–related parties, and $3.5 million in accrued and other liabilities(accrued clinical–related parties), all reflected on the Company’s consolidated balance sheet associated with Medpace. The Company recognized $8.2million, $34.6 million and $42.5 million during years ended December 31, 2017, 2016 and 2015, respectively, for services rendered by Medpace withinresearch and development expense in the consolidated statements of operations.Recruiting ServicesOne member of the Company’s board of directors is a partner of a firm that provides recruiting services to the Company. As such, the recruitingservices provided were deemed to be related party transactions. As of December 31, 2017 and 2016, there were no such related party balances in theCompany’s consolidated balance sheets. The Company recorded in research and development expense in its consolidated statements of operations, $17,000,$135,000 and $258,000 for the years ended December 31, 2017, 2016 and 2015, respectively, for services rendered by the recruiting company. The Companyrecorded in general and administrative expense in its consolidated statements of operations, $62,000, $178,000 and $559,000 for the year ended December31, 2017, 2016 and 2015, respectively, for services rendered by the recruiting company.Convertible Notes — Related PartiesIn February 2016, the Company issued Convertible Notes to certain related parties (some companies affiliated with members of the Company’s boardof directors), for an aggregate principal amount of $25.0 million (see Note 6 for related party disclosure).InteKrin AcquisitionIn February 2014, the Company completed the acquisition of the InteKrin for total consideration of $5.0 million. Mr. Dennis M. Lanfear, the chiefexecutive officer of the Company, was the chairman of the board and acting president of InteKrin at the time of the acquisition. As such, the InteKrinacquisition was a related party transaction. Mr. Lanfear also owns 10% of the outstanding securities of InteKrin Russia, a majority owned subsidiary ofInteKrin. 14.Subsequent EventsIn February 2018, the Company’s board of directors approved an option grant of 2,490,100 shares at an exercise price of $10.05 to the employees anddirectors. 109Coherus BioSciences, Inc.Notes to Consolidated Financial Statements 15.Supplementary Data – Quarterly Financial Data (Unaudited)The following table presents certain unaudited consolidated quarterly financial information for each of the quarters ended December 31, 2017 and2016: 2017 Quarter End (in thousands, except per share data) March 31 June 30 September 30 December 31 Total revenue $161 $1,395 $— $— Total operating expenses 72,578 58,033 56,615 46,466 Net loss (74,822) (55,402) (58,993) (49,069)Net loss attributable to Coherus (74,778) (55,336) (58,989) (49,067)Net loss per share attributable to Coherus, basic and diluted (1.54) (1.08) (1.09) (0.84) 2016 Quarter End March 31 June 30 September 30 December 31 Total revenue (1) $12,359 $14,068 $162,835 $844 Total operating expenses 76,711 76,804 78,218 74,304 Net income (loss) (1) (65,538) (70,150) 83,844 (75,944)Net income (loss) attributable to Coherus (1) (65,388) (69,967) 83,939 (75,921)Net income (loss) per share attributable to Coherus: Basic (1) (1.67) (1.72) 1.93 (1.71)Diluted (1) (1.67) (1.72) 1.67 (1.71) (1)In June 2016, Shire completed its acquisition of Baxalta and as part of its strategic portfolio review issued a termination notice of the BaxaltaAgreement in its entirety on September 26, 2016. As such, the Company regained from Shire all development and commercial rights previouslylicensed under CHS-0214. There were no further contractual obligations. Therefore, the Company recognized the outstanding balances of deferredrevenue and contingent liability to collaborator of $85.8 million and $76.7 million, respectively, as revenue in the three months ended September 30,2016 (see Note 5), and resulted in net income and net income attributable to Coherus for the three months ended September 30, 2016. 110 Item 9.Changes in and Disagreements with Accountants on Accounting and Financial DisclosureNone Item 9A.Controls and Procedures (a)Evaluation of Effectiveness of Disclosure Controls and ProceduresWe carried out an evaluation, under the supervision of our Chief Executive Officer and our Chief Financial Officer, and evaluated the effectiveness ofour disclosure controls and procedures as defined in Rules 13a-15(e) and 15d-15(e) under the Exchange Act, as of the end of the period covered by thisAnnual Report on Form 10-K. Based on that evaluation, our President and Chief Executive Officer and our Chief Financial Officer have concluded that, as ofthe end of the period covered by this Annual Report on Form 10-K, our disclosure controls and procedures were, in design and operation, effective.We maintain disclosure controls and procedures that are designed to ensure that information required to be disclosed in our Exchange Act reports isrecorded, processed, summarized and reported within the time periods specified in the Securities and Exchange Commission's rules and forms and that suchinformation is accumulated and communicated to our management, including our chief executive officer, principal financial officer and principal accountingofficer, as appropriate, to allow for timely decisions regarding required disclosure.We intend to review and evaluate the design and effectiveness of our disclosure controls and procedures on an ongoing basis and to correct anymaterial deficiencies that we may discover. Our goal is to ensure that our management has timely access to material information that could affect ourbusiness. While we believe the present design of our disclosure controls and procedures is effective to achieve our goal, future events affecting our businessmay cause us to modify our disclosure controls and procedures. In designing and evaluating the disclosure controls and procedures, management recognizesthat any controls and procedures, no matter how well designed and operated, can provide only reasonable assurance of achieving the desired controlobjectives, and management is required to apply its judgment in evaluating the cost-benefit relationship of possible controls and procedures. (b)Management’s Annual Report on Internal Control Over Financial ReportingOur management is responsible for establishing and maintaining adequate internal control over financial reporting, as such term is defined inExchange Act Rules 13a-15(f). Under the supervision and with the participation of our management, including our principal executive officer, principalfinancial officer and principal accounting officer, we conducted an evaluation of the effectiveness of our internal control over financial reporting based onthe framework in Internal Control—Integrated Framework issued by the Committee of Sponsoring Organizations of the Treadway Commission (2013Framework). Based on our evaluation under the framework in Internal Control—Integrated Framework, our management concluded that our internal controlover financial reporting was effective as of December 31, 2017. Ernst & Young LLP, our independent registered public accounting firm, has attested to andissued a report on the effectiveness of our internal control over financial reporting, which is included herein.111 Report of Independent Registered Public Accounting Firm The Stockholders and Board of Directors of Coherus BioSciences, Inc.Opinion on Internal Control over Financial ReportingWe have audited Coherus BioSciences, Inc.’s internal control over financial reporting as of December 31, 2017, based on criteria established in InternalControl-Integrated Framework issued by the Committee of Sponsoring Organizations of the Treadway Commission (2013 framework) (the COSO criteria). Inour opinion, Coherus BioSciences, Inc. (the Company) maintained, in all material respects, effective internal control over financial reporting as of December31, 2017, based on the COSO criteria.We also have audited, in accordance with the standards of the Public Company Accounting Oversight Board (United States) (PCAOB), the consolidatedbalance sheets of Coherus BioSciences, Inc. as of December 31, 2017 and 2016, and the related consolidated statements of operations, comprehensive loss,stockholders’ equity (deficit) and cash flows for each of the three years in the period ended December 31, 2017, and the related notes of the Company and ourreport dated March 8, 2018 expressed an unqualified opinion thereon.Basis for OpinionThe Company’s management is responsible for maintaining effective internal control over financial reporting and for its assessment of the effectiveness ofinternal control over financial reporting included in the accompanying Management’s Report on Internal Control over Financial Reporting. Ourresponsibility is to express an opinion on the Company’s internal control over financial reporting based on our audit. We are a public accounting firmregistered with the PCAOB and are required to be independent with respect to the Company in accordance with the U.S. federal securities laws and theapplicable rules and regulations of the Securities and Exchange Commission and the PCAOB.We conducted our audit in accordance with the standards of the PCAOB. Those standards require that we plan and perform the audit to obtain reasonableassurance about whether effective internal control over financial reporting was maintained in all material respects. Our audit included obtaining anunderstanding of internal control over financial reporting, assessing the risk that a material weakness exists, testing and evaluating the design and operatingeffectiveness of internal control based on the assessed risk, and performing such other procedures as we considered necessary in the circumstances. Webelieve that our audit provides a reasonable basis for our opinion.Definition and Limitations of Internal Control Over Financial ReportingA company’s internal control over financial reporting is a process designed to provide reasonable assurance regarding the reliability of financial reportingand the preparation of financial statements for external purposes in accordance with generally accepted accounting principles. A company’s internal controlover financial reporting includes those policies and procedures that (1) pertain to the maintenance of records that, in reasonable detail, accurately and fairlyreflect the transactions and dispositions of the assets of the company; (2) provide reasonable assurance that transactions are recorded as necessary to permitpreparation of financial statements in accordance with generally accepted accounting principles, and that receipts and expenditures of the company are beingmade only in accordance with authorizations of management and directors of the company; and (3) provide reasonable assurance regarding prevention ortimely detection of unauthorized acquisition, use, or disposition of the company’s assets that could have a material effect on the financial statements.Because of its inherent limitations, internal control over financial reporting may not prevent or detect misstatements. Also, projections of any evaluation ofeffectiveness to future periods are subject to the risk that controls may become inadequate because of changes in conditions, or that the degree of compliancewith the policies or procedures may deteriorate./s/ Ernst & Young LLPRedwood City, CaliforniaMarch 8, 2018 112 Changes in Internal Control Over Financial Reporting.There were no changes in our internal control over financial reporting identified in connection with the evaluation required by Rule 13a-15(d) and15d-15(d) of the Exchange Act that occurred during the quarter ended December 31, 2017 that have materially affected, or are reasonably likely to materiallyaffect, our internal control over financial reporting. Item 9B.Other InformationNot applicable. 113 PART IIICertain information required by Part III is omitted from this Annual Report on From 10-K because the Company will file a Definitive Proxy Statementwith the Securities and Exchange Commission within 120 days after the end of our year ended December 31, 2017. Item 10.Directors, Executive Officers and Corporate GovernanceThe information required by this item is incorporated herein by reference to the Proxy Statement. Item 11.Executive CompensationThe information required by this item is incorporated herein by reference to the Proxy Statement. Item 12.Security Ownership of Certain Beneficial Owners and Management and Related Stockholder MattersThe information required by this item is incorporated herein by reference to the Proxy Statement. Item 13.Certain Relationships and Related Transactions, and Director IndependenceThe information required by this item is incorporated herein by reference to the Proxy Statement. Item 14.Principal Accounting Fees and ServicesThe information required by this item is incorporated herein by reference to the Proxy Statement. 114 PART IV Item 15.Exhibits and Financial Statement Schedules (a)(1)The financial statements required by Item 15(a) are filed in Item 8 of this Annual Report on Form 10-K. (2)The financial statement schedules required by Item 15(a) are omitted because they are not applicable, not required or the required informationis included in the financial statements or notes thereto as filed in Item 8 of this Annual Report on Form 10-K. (3)We have filed, or incorporated into this report by reference, the exhibits listed on the accompanying Index to Exhibits immediately precedingthe signature page of this Annual Report on Form 10-K.115 INDEX TO EXHIBITS Incorporated by ReferenceExhibitNumberExhibit DescriptionFormDateNumberFiledHerewith 3.1Amended and Restated Certificate of Incorporation.8-K11/13/20143.1 3.2Amended and Restated Bylaws.8-K11/13/20143.2 4.1Reference is made to exhibits 3.1 and 3.2. 4.2Registration Rights Agreement, dated as of September 10, 2015, by and between BaxaltaGmbH and Coherus BioSciences, Inc.8-K9/14/20154.1 4.3Form of Common Stock Certificate.S-1/A10/24/20144.2 4.4Third Amended and Restated Investor Rights Agreement, dated as of May 9, 2014 by andamong Coherus BioSciences, Inc. and certain investors named therein.S-19/25/20144.3 4.5Registration Rights Agreement, dated as of August 21, 2017, by and between V-SciencesInvestments Pte Ltd and Coherus BioSciences, Inc. 8K8/22/20174.1 4.6Registration Rights Agreement, dated as of November 30, 2017, by and between KBIBiopharma, Inc. and Coherus BioSciences, Inc.8K12/5/20174.1 10.1†License Agreement, effective January 23, 2012, by and between Daiichi Sankyo Company,Limited and BioGenerics, Inc.S-1/A10/20/201410.1 10.2(a)†License Agreement, effective August 30, 2013, by and among Baxter International Inc.,Baxter Healthcare Corporation, and Baxter Healthcare SA and Coherus BioSciences, Inc.S-1/A10/20/201410.2(a) 10.2(b)†First Amendment to License Agreement, effective February 7, 2014, by and among BaxterInternational Inc., Baxter Healthcare Corporation, and Baxter Healthcare SA and CoherusBioSciences, Inc.S-19/25/201410.2(b) 10.3†Distribution Agreement, effective December 26, 2012, by and between Orox PharmaceuticalsB.V. and Coherus BioSciences, Inc.S-19/25/201410.3 10.4†Non-Exclusive License Agreement, effective July 10, 2013, by and between Genentech, Inc.and Coherus BioSciences, Inc.S-19/25/201410.4 10.5†Commercial License Agreement, effective April 8, 2011, by and between Selexis SA andBioGenerics, Inc.S-19/25/201410.5 10.6†Commercial License Agreement, effective June 25, 2012, by and between Selexis SA andCoherus BioSciences, Inc.S-19/25/201410.6 10.7Agreement and Plan of Merger, dated January 8, 2014, by and among Coherus BioSciences,Inc., Coherus Intermediate Corp., Coherus Acquisition Corp., InteKrin Therapeutics Inc., andFortis Advisors LLC.S-19/25/201410.7 10.8(a)Standard Industrial/Commercial Multi-tenant Lease-Gross, effective December 5, 2011, byand between Howard California Property Camarillo 5 and BioGenerics, Inc.S-19/25/201410.9(a) 10.8(b)First Amendment to Lease, effective December 21, 2013, by and between Howard CaliforniaProperty Camarillo 5 and Coherus BioSciences, Inc.S-19/25/201410.9(b) 10.9(a)#BioGenerics, Inc. 2010 Equity Incentive Plan, as amended.S-19/25/201410.10(a) 10.9(b)#Form of Stock Option Grant Notice and Stock Option Agreement under the 2010 EquityIncentive Plan, as amended.S-19/25/201410.10(b) 10.10(a)#Coherus BioSciences, Inc. 2014 Equity Incentive Award Plan.S-1/A10/24/201410.11 10.10(b)#Form of Stock Option Grant Notice and Stock Option Agreement under the 2014 EquityIncentive Award Plan.S-1/A11/4/201410.11(b) 116 Incorporated by ReferenceExhibitNumberExhibit DescriptionFormDateNumberFiledHerewith 10.10(c)#Form of Restricted Stock Award Grant Notice and Restricted Stock Award Agreement underthe 2014 Equity Incentive Award Plan.S-1/A11/4/201410.11(c) 10.10(d)#Form of Restricted Stock Unit Award Grant Notice and Restricted Stock Unit AwardAgreement under the 2014 Equity Incentive Award Plan.S-1/A11/4/201410.11(d) 10.11#Coherus BioSciences, Inc. 2014 Employee Stock Purchase Plan.S-1/A10/24/201410.12 10.12#Form of Indemnification Agreement between Coherus BioSciences, Inc. and each of itsdirectors, officers and certain employees.S-1/A10/24/201410.13 10.13#Separation Agreement, effective June 30, 2014, by and between Douglas Farrar and CoherusBioSciences, Inc.S-19/25/201410.14 10.14†Master Services Agreement, effective January 23, 2012, by and between Medpace, Inc. andBioGenerics, Inc.S-19/25/201410.15 10.15(a)†Task Order Number 13, effective October 18, 2013, by and between Medpace, Inc. andCoherus BioSciences, Inc.S-19/25/201410.16(a) 10.15(b)†Amendment Number 1 to Task Order Number 13, effective April 23, 2014, by and betweenMedpace, Inc. and Coherus BioSciences, Inc.S-19/25/201410.16(b) 10.15(c)†Amendment Number 2 to Task Order Number 13, effective May 21, 2014, by and betweenMedpace, Inc. and Coherus BioSciences, Inc.S-19/25/201410.16(c) 10.15(d)†Amendment Number 3 to Task Order Number 13, effective May 30, 2014, by and betweenMedpace, Inc. and Coherus BioSciences, Inc.S-19/25/201410.16(d) 10.15(e)†Amendment Number 4 to Task Order Number 13, effective August 19, 2014, by and betweenMedpace, Inc. and Coherus BioSciences, Inc.S-19/25/201410.16(e) 10.16(a)†Task Order Number 20, effective November 8, 2013, by and between Medpace, Inc. andCoherus BioSciences, Inc.S-1/A10/24/201410.17(a) 10.16(b)†Amendment Number 1 to Task Order Number 20, effective April 23, 2014, by and betweenMedpace, Inc. and Coherus BioSciences, Inc.S-1/A10/24/201410.17(b) 10.16(c)†Amendment Number 2 to Task Order Number 20, effective June 27, 2014, by and betweenMedpace, Inc. and Coherus BioSciences, Inc.S-1/A10/24/201410.17(c) 10.16(d)†Amendment Number 3 to Task Order Number 20, effective September 5, 2014, by andbetween Medpace, Inc. and Coherus BioSciences, Inc.S-1/A10/24/201410.17(d) 10.17†Amended and Restated License Agreement, effective April 10, 2015, by and among BaxterInternational Inc., Baxter Healthcare Corporation, and Baxter Healthcare SA and CoherusBioSciences, Inc.10-Q5/11/201510.1 10.18(a)†Master Services Agreement, effective February 27, 2015, by and between a contract researchorganization and Coherus BioSciences, Inc.10-Q5/11/201510.2(a) 10.18(b)†Work Order #1, effective March 31, 2015, by and between a contract research organizationand Coherus BioSciences, Inc.10-Q5/11/201510.2(b) 10.19Task Order Number 23, effective November 12, 2014, by and between Medpace, Inc. andCoherus BioSciences, Inc.10-Q8/10/201510.1 10.20New Office Lease, effective July 6, 2015, by and between Hudson 333 Twin Dolphin Plaza,LLC and Coherus BioSciences, Inc.10-Q8/10/201510.3 10.21First Amendment, effective August 10, 2015, by and between Hudson 333 Twin DolphinPlaza, LLC and Coherus BioSciences, Inc.10-Q8/10/201510.4 10.22Stock Purchase Agreement dated as of September 10, 2015 by and among BaxaltaIncorporated, Baxalta US Inc. and Baxalta GmbH and Coherus BioSciences, Inc.8-K9/14/201510.1 117 Incorporated by ReferenceExhibitNumberExhibit DescriptionFormDateNumberFiledHerewith 10.23Convertible Note Purchase Agreement, dated as of February 29, 2016, among CoherusBiosciences, Inc., as Issuer, HealthCare Royalty Partners III, L.P., MX II Associates LLC,KMG Capital Partners, LLC and KKR Biosimilar L.P., each as an Investor, and the Guarantorsparty thereto (including the form of Note attached thereto as Exhibit A).8-K2/29/201610.1 10.24Amendment to Convertible Note Purchase Agreement, dated as of March 25, 2016, amongCoherus Biosciences, Inc., the Guarantors party thereto and HealthCare Royalty Partners III,L.P.10-Q5/9/201610.2 10.25(a)Coherus BioSciences, Inc. 2016 Employment Commencement Incentive Plan.10-Q8/9/201610.1(a) 10.25(b)Form of Stock Option Grant Notice and Stock Option Agreement under the CoherusBioSciences, Inc. 2016 Employment Commencement Incentive Plan.10-Q8/9/201610.1(b) 10.25(c)Form of Restricted Stock Unit Award Grant Notice and Restricted Stock Unit AwardAgreement under the Coherus BioSciences, Inc. 2016 Employment CommencementIncentive Plan.10-Q8/9/201610.1(c) 10.25(d)Form of Restricted Stock Award Grant Notice and Restricted Stock Award Agreement underthe Coherus BioSciences, Inc. 2016 Employment Commencement Incentive Plan.10-Q8/9/201610.1(d) 10.26Second Amendment, dated September 21, 2016, by and between Hudson 333 Twin DolphinPlaza, LLC and Coherus BioSciences, Inc.8-K9/26/201610.1 10.27Stock Purchase Agreement, dated as of August 21, 2017, by and between CoherusBioSciences, Inc. and V-Sciences Investments Pte Ltd.8-K8/22/201710.1 10.28Stock Purchase Agreement, dated as of November 30, 2017, by and between CoherusBioSciences, Inc. and KBI Biopharma, Inc.8-K12/5/201710.1 10.29Letter Agreement to Master Service Agreement, dated as of September 6, 2017, by andbetween Medpace, Inc. and Coherus BioSciences, Inc.10Q11/06/201710.2 23.1Consent of Independent Registered Public Accounting Firm X 24.1Power of Attorney (included in the signature page to this Form 10-K) X 31.1Certification of Principal Executive Officer Required Under Rule 13a-14(a) and 15d-14(a) ofthe Securities Exchange Act of 1934, as amended. X 31.2Certification of Principal Financial Officer Required Under Rule 13a-14(a) and 15d-14(a) ofthe Securities Exchange Act of 1934, as amended. X 32.1Certification of Principal Executive Officer and Principal Financial Officer Required UnderRule 13a-14(b) of the Securities Exchange Act of 1934, as amended, and 18 U.S.C. §1350. X 101.INS*XBRL Instance Document X 101.SCH*XBRL Taxonomy Extension Schema Document X 101.CAL*XBRL Taxonomy Extension Calculation Linkbase Document 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 Linkbase Document 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.118 SIGNATURESPursuant to the requirements of Section 13 or 15(d) the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on itsbehalf by the undersigned, thereunto duly authorized. COHERUS BIOSCIENCES, INC. Date: March 8, 2018 By: /s/ Dennis M. Lanfear Name: Dennis M. Lanfear Title: President and Chief Executive Officer(Principal Executive Officer)119 POWER OF ATTORNEYKNOW ALL MEN AND WOMEN BY THESE PRESENTS, that each person whose signature appears below constitutes and appoints Dennis M.Lanfear and Jean-Frédéric Viret, his attorneys-in-fact, for him or her in any and all capacities, to sign any amendments to this Annual Report on Form 10-K,and to file the same, with exhibits thereto and other documents in connection therewith, with the U.S. Securities and Exchange Commission, hereby ratifyingand confirming all that said attorney-in-fact, or his substitute, may do or cause to be done by virtue thereof.Pursuant to the requirements of the Securities Exchange Act of 1934, this report has been signed below by the following persons on behalf of theregistrant and in the capacities and on the dates indicated. /s/ Dennis M. LanfearDennis M. Lanfear Chairman, President and Chief Executive Officer(Principal Executive Officer) March 8, 2018 /s/ Jean-Frédéric Viret, Ph.D.Jean-Frédéric Viret, Ph.D. Chief Financial Officer(Principal Financial and Accounting Officer) March 8, 2018 /s/ James I. Healy, M.D., Ph.D.James I. Healy, M.D., Ph.D. Director March 8, 2018 /s/ V. Bryan Lawlis, Ph.D.V. Bryan Lawlis, Ph.D. Director March 8, 2018 /s/ Christos RichardsChristos Richards Director March 8, 2018 /s/ Ali J. SatvatAli J. Satvat Director March 8, 2018 /s/ August J. Troendle, M.D.August J. Troendle, M.D. Director March 8, 2018 /s/ Mats WahlströmMats Wahlström Director March 8, 2018 /s/ Mary T. SzelaMary T. Szela Director March 8, 2018 120Exhibit 23.1CONSENT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRMWe consent to the incorporation by reference in the Registration Statements (Form S-3 No. 333-208625); (Form S-3 No. 333-220590) of CoherusBioSciences, Inc.; Registration Statements (Form S-8 Nos. 333-200593, 333-203356, 333-209936, 333-216679, and 333-222700 ) pertaining to theBioGenerics, Inc. 2010 Equity Incentive Plan, as amended, the Coherus BioSciences, Inc. 2014 Equity Incentive Award Plan, and the Coherus BioSciences,Inc. 2014 Employee Stock Purchase Plan; Registration Statement (Form S-8 No. 333-213077) pertaining to the 2016 Employment Commencement IncentivePlan; of Coherus BioSciences, Inc. of our reports dated March 8, 2018, with respect to the consolidated financial statements of Coherus BioSciences, Inc., andthe effectiveness of internal control over financial reporting of Coherus BioSciences, Inc., included in this Annual Report (Form 10-K) for the year endedDecember 31, 2017. /s/ Ernst & Young LLPRedwood City, CaliforniaMarch 8, 2018 Exhibit 31.1CERTIFICATION OF PRINCIPAL EXECUTIVE OFFICERPURSUANT TOSECTION 13(a) OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934AS ADOPTED PURSUANT TOSECTION 302 OF THE SARBANES-OXLEY ACT OF 2002I, Dennis M. Lanfear, certify that:1.I have reviewed this Annual Report on Form 10-K of Coherus BioSciences, Inc. (the "registrant");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.The registrant’s other certifying officer and I are responsible for establishing and maintaining disclosure controls and procedures (as defined inExchange Act Rules 13a-15(e) and 15d-15(e)) and internal control over financial reporting (as defined in Exchange Act Rules 13a-15(f) and 15d-15(f))for the registrant and have: (a)Designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be designed under our supervision, toensure that material information relating to the registrant, including its consolidated subsidiaries, is made known to us by others within thoseentities, 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 oursupervision, to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements forexternal purposes in accordance with generally accepted accounting principles; (c)Evaluated the effectiveness of the registrant’s disclosure controls and procedures and presented in this report our conclusions about 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 most recentfiscal quarter (the registrant’s fourth fiscal quarter in the case of an annual report) that has materially affected, or is reasonably likely tomaterially affect, the registrant’s internal control over financial reporting; and5.The registrant’s other certifying officer and I have disclosed, based on our most recent evaluation of internal control over financial reporting, to theregistrant’s auditors and the audit committee of the registrant’s board of directors (or persons performing the equivalent functions): (a)All significant deficiencies and material weaknesses in the design or operation of internal control over financial reporting which are reasonablylikely to adversely affect the registrant’s ability to record, process, summarize and report financial information; and (b)Any fraud, whether or not material, that involves management or other employees who have a significant role in the registrant’s internal controlover financial reporting.Date: March 8, 2018 /s/ Dennis M. LanfearDennis M. LanfearPresident and Chief Executive Officer Exhibit 31.2CERTIFICATION OF PRINCIPAL FINANCIAL OFFICERPURSUANT TOSECTION 13(a) OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934AS ADOPTED PURSUANT TOSECTION 302 OF THE SARBANES-OXLEY ACT OF 2002I, Jean-Frédéric Viret, certify that:1.I have reviewed this Annual Report on Form 10-K of Coherus BioSciences, Inc. (the "registrant");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.The registrant’s other certifying officer and I are responsible for establishing and maintaining disclosure controls and procedures (as defined inExchange Act Rules 13a-15(e) and 15d-15(e)) and internal control over financial reporting (as defined in Exchange Act Rules 13a-15(f) and 15d-15(f))for the registrant and have: (a)Designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be designed under our supervision, toensure that material information relating to the registrant, including its consolidated subsidiaries, is made known to us by others within thoseentities, 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 oursupervision, to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements forexternal purposes in accordance with generally accepted accounting principles; (c)Evaluated the effectiveness of the registrant’s disclosure controls and procedures and presented in this report our conclusions about 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 most recentfiscal quarter (the registrant’s fourth fiscal quarter in the case of an annual report) that has materially affected, or is reasonably likely tomaterially affect, the registrant’s internal control over financial reporting; and5.The registrant’s other certifying officer and I have disclosed, based on our most recent evaluation of internal control over financial reporting, to theregistrant’s auditors and the audit committee of the registrant’s board of directors (or persons performing the equivalent functions): (a)All significant deficiencies and material weaknesses in the design or operation of internal control over financial reporting which are reasonablylikely to adversely affect the registrant’s ability to record, process, summarize and report financial information; and (b)Any fraud, whether or not material, that involves management or other employees who have a significant role in the registrant’s internal controlover financial reporting.Date: March 8, 2018 /s/ Jean-Frédéric ViretJean-Frédéric Viret, Ph.D.Chief Financial Officer Exhibit 32.1CERTIFICATIONS OF PRINCIPAL EXECUTIVE OFFICER AND PRINCIPAL FINANCIAL OFFICERPURSUANT TO18 U.S.C. SECTION 1350,AS ADOPTED PURSUANT TOSECTION 906 OF THE SARBANES-OXLEY ACT OF 2002Pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002, the undersigned officers of CoherusBioSciences, Inc. (the “Registrant”) certify that the Registrant’s Annual Report on Form 10-K for the year ended December 31, 2017 (the “Report”) fullycomplies with the requirements of Section 13(a) or 15(d), as applicable, of the Securities Exchange Act of 1934, as amended, and the information containedin the Report fairly presents, in all material respects, the financial condition and results of operations of the Registrant. Date: March 8, 2018 By: /s/ Dennis M. Lanfear Name: Dennis M. Lanfear Title: President and Chief Executive Officer Date: March 8, 2018 By: /s/ Jean-Frédéric Viret Name: Jean-Frédéric Viret Title: Chief Financial OfficerA signed original of this written statement required by Rule 13a-14(b) of the Securities Exchange Act of 1934, as amended, and 18 U.S.C. Section 1350 hasbeen provided to the Registrant and will be retained by the Registrant and furnished to the Securities and Exchange Commission or its staff upon request.This certification accompanies the Form 10-K to which it relates, is not deemed filed with the Securities and Exchange Commission and is not to beincorporated by reference into any filing of the Registrant under the Securities Act of 1933, as amended, or the Securities Exchange Act of 1934, asamended, (whether made before or after the date of the Report), irrespective of any general incorporation language contained in such filing. 

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