Our legal proceedings involve various aspects of our business and a variety of claims, some of which present novel factual allegations and/or unique legal theories. In each of the matters described in this filing, in which we could incur a liability, our opponents seek an award of a not-yet-quantified amount of damages or an amount that is not material. In addition, a number of the matters pending against us are at very early stages of the legal process, which in complex proceedings of the sort we face often extend for several years. As a result, none of the matters described in this filing, in which we could incur a liability, have progressed sufficiently through discovery and/or the development of important factual information and legal issues to enable us to estimate a range of possible loss, if any, or such amounts are not material. While it is not possible to accurately predict or determine the eventual outcomes of these matters, an adverse determination in one or more of these matters currently pending could have a material adverse effect on our consolidated results of operations, financial position or cash flows.

Between October 2016 and April 2018, Onyx Therapeutics, Inc. (Onyx Therapeutics, a wholly-owned subsidiary of Amgen), filed separate lawsuits in the U.S. District Court for the District of Delaware (the Delaware District Court) against: (1) Cipla Limited and Cipla USA, Inc. (collectively, Cipla); (2) Sagent Pharmaceuticals, Inc. (Sagent); (3) Breckenridge Pharmaceutical, Inc. (Breckenridge); and (4) Fresenius Kabi, USA LLC, Fresenius Kabi USA, Inc., Fresenius Kabi Pharmaceuticals Holding, Inc. and Fresenius Kabi Oncology Limited; (5) Teva Pharmaceuticals USA, Inc. and Teva Pharmaceutical Industries Ltd.; (6) MSN Laboratories Private Limited and MSN Pharmaceuticals, Inc. (collectively, MSN); (7) Dr. Reddy’s Laboratories, Ltd. and Dr. Reddy’s Laboratories, Inc. (collectively, DRL); (8) Qilu Pharma, Inc. and Qilu Pharmaceutical Co. Ltd. (collectively, Qilu); (9) Apotex Inc. and Apotex Corp. (Apotex); (10) InnoPharma, Inc. (InnoPharma); and (11) Aurobindo Pharma USA, Inc., each for infringement of one or more of our following patents, which are listed in the Approved Drug Products with Therapeutic Equivalence Evaluations (the Orange Book) for KYPROLIS^®: U.S. Patent Nos. 7,232,818 (the ’818 Patent), 7,417,042 (the ’042 Patent), 7,491,704 (the ’704 Patent), 7,737,112 (the ’112 Patent), 8,129,346 (the ’346 Patent), 8,207,125 (the ’125 Patent), 8,207,126 (the ’126 Patent), 8,207,127 (the ’127 Patent) and 8,207,297 (the ’297 Patent). Each of these lawsuits were based on each defendant’s submission of an ANDA seeking U.S. Food and Drug Administration (FDA) approval to market a generic version of KYPROLIS^®. In each lawsuit, Onyx Therapeutics sought an order of the Delaware District Court making any FDA approval of the respective defendant’s ANDA effective no earlier than the expiration of the applicable patents.

In 2017, by stipulation with Onyx Therapeutics, Fresenius Kabi Pharmaceuticals Holding, Inc. and Fresenius Kabi Oncology Limited were dismissed from the lawsuit, leaving Fresenius Kabi, USA LLC and Fresenius Kabi USA, Inc. (collectively, Fresenius) as the remaining Fresenius defendants. In September 2017 and February 2018, respectively, by joint stipulation with Onyx Therapeutics, Teva Pharmaceutical Industries Ltd. and Teva Pharmaceuticals USA, Inc. were each dismissed from the lawsuit and in February 2018, Qilu was dismissed from the lawsuit by joint stipulation between Onyx Therapeutics and Qilu.

Between April and July of 2018, the Delaware District Court entered orders on stipulations between Onyx Therapeutics and each of Apotex, DRL, Sagent, Fresenius, Breckenridge, Aurobindo Pharma USA, Inc., Cipla and InnoPharma, respectively, that each defendant infringes the ’042, ’112, ’125, ’126 and ’127 Patents. Onyx Therapeutics provided those defendants, either through a stipulated order or other agreement, a covenant that it would not assert patent infringement of the ’818,’704,’346 and ’297 Patents against certain of the respective defendants’ ANDA applications and products. In June 2018, the Delaware District Court entered an order on a stipulation between Onyx Therapeutics and MSN that MSN infringes the ’112 Patent. In December 2018, Apotex, DRL, Fresenius, InnoPharma, Sagent, Breckenridge, Aurobindo Pharma USA, Inc. and Cipla amended their responses to the complaints to add the defense of unclean hands and to seek declarations of unenforceability of the asserted patents based on allegations of inequitable conduct. In January 2019, MSN amended its responses to the complaints to add the defense of unclean hands.

On January 11, 2019, Onyx Therapeutics filed a separate lawsuit in the Delaware District Court against Breckenridge for infringement of the ’042, ’112 and ’125 Patents in connection with its ANDA that seeks approval to market generic versions of KYPROLIS^®. On March 4, 2019, the Delaware District Court entered an order on a stipulation between Onyx Therapeutics and Breckenridge, providing that Breckenridge infringes the asserted claims of the ’042, ’112 and ’125 Patents, and consolidated this lawsuit against Breckenridge into the existing consolidated case, Onyx Therapeutics, Inc. v. Cipla Limited, et al., for all purposes.

On May 6, 2019, the Delaware District Court commenced trial in the Onyx Therapeutics, Inc. v. Cipla Limited, et al. consolidated case. During trial, the Delaware District Court signed consent judgments filed by Onyx Therapeutics and each of Aurobindo Pharma USA, Inc., InnoPharma, Sagent, Apotex, Fresenius, DRL and Breckenridge, in which the parties stipulated to entry of: (1) judgment dismissing with prejudice all of the parties’ claims, counterclaims, affirmative defenses and demands; and (2) an injunction prohibiting infringement of the ’042, ’112 and ’125 Patents by the manufacture, use, sale, offer to sell or importation into the United States of the applicable defendant’s carfilzomib product unless specifically authorized pursuant to the applicable confidential settlement agreement. During trial, the Delaware District Court also entered a consent judgment between Onyx Therapeutics and MSN, in which the parties stipulated to entry of: (1) judgment dismissing with prejudice all of the parties’ claims, counterclaims, affirmative defenses and demands; and (2) an injunction prohibiting infringement of the ’112 Patent by the manufacture, use, sale, offer to sell or importation into the United States of MSN’s carfilzomib product unless specifically authorized pursuant to the confidential settlement agreement. On May 16, 2019, trial concluded between Onyx Therapeutics and the lone remaining defendant, Cipla. On January 17, 2020, the Delaware District Court issued an order advising the parties that the court expects to issue its post-trial opinion by, on or about, March 31, 2020.

Beginning in June 2018, Celgene filed 19 separate lawsuits in the U.S. District Court for the District of New Jersey (the New Jersey District Court) against Alkem Laboratories Ltd. (Alkem); Amneal Pharmaceuticals LLC; Annora Pharma Private Ltd. and Hetero USA Inc. (collectively, Hetero); Aurobindo Pharma Ltd. and Aurobindo Pharma USA Inc. (collectively, Aurobindo); Cipla Limited (Cipla Ltd); DRL; Emcure Pharmaceuticals Ltd. and Heritage Pharmaceuticals Inc. (collectively, Emcure); Glenmark Pharmaceuticals Ltd. (Glenmark); Macleods Pharmaceuticals Ltd. (Macleods); Mankind Pharma Ltd. (Mankind); MSN Laboratories Private Limited; Pharmascience Inc. (Pharmascience); Prinston Pharmaceutical Inc. (Prinston); Sandoz Inc.; Shilpa Medicare Ltd. (Shilpa); Teva Pharmaceuticals USA, Inc. and Actavis LLC (collectively, Actavis); Torrent Pharmaceuticals Ltd. (Torrent); Unichem Laboratories, Ltd. (Unichem); and Zydus Pharmaceuticals (USA) Inc., each for infringement of one or more of the following patents: U.S. Patent Nos. 6,962,940 (the ’940 Patent); 7,208,516 (the ’516 Patent); 7,427,638 (the ’638 Patent); 7,659,302 (the ’302 Patent); 7,893,101 (the ’101 Patent); 8,455,536 (the ’536 Patent); 8,802,717 (the ’717 Patent); 9,018,243 (the ’243 Patent) and 9,872,854 (the ’854 Patent), which are listed in the Orange Book for Otezla^®. Each of the defendants is seeking to market a generic version of Otezla^® before expiration of the asserted patents. The New Jersey District Court consolidated these 19 lawsuits for discovery and case management purposes into a single case, Celgene Corp. v. Sandoz Inc., et al. Each lawsuit seeks an order of the New Jersey District Court making any FDA approval of the respective defendant’s ANDA effective no earlier than the expiration of the applicable patents.

Between August 8, 2018 and August 30, 2018, Celgene filed amended complaints against Alkem, Amneal Pharmaceuticals LLC, Aurobindo, Cipla Ltd, DRL, Glenmark, Pharmascience, Sandoz Inc., Actavis, Unichem and Zydus Pharmaceuticals (USA) Inc. additionally asserting U.S. Patent No. 9,724,330 (the ’330 Patent), which is listed in the Orange Book for Otezla^®. Between October 15 and November 27, 2018, Celgene filed amended complaints against Alkem, Amneal Pharmaceuticals LLC, Hetero, Aurobindo, Cipla Ltd, DRL, Emcure, Glenmark, Macleods, Mankind, MSN Laboratories Private Limited, Pharmascience, Prinston, Sandoz Inc., Actavis, Torrent, Unichem and Zydus Pharmaceuticals (USA) Inc. additionally asserting U.S. Patent No. 10,092,541 (the ’541 Patent), which is listed in the Orange Book for Otezla^®. Between March 1, 2019 and April 4, 2019, Celgene filed amended complaints against Hetero, MSN Laboratories Private Limited and Emcure for infringement of one or more of the above-listed patents. On October 1, 2019, Celgene filed an amended complaint against Mankind for infringement of the ’940, ’302, ’536, ’243 and ’330 Patents. On October 8, 2019, Celgene filed a separate lawsuit against Zydus Pharmaceuticals (USA) Inc. in the New

Each defendant has filed an answer to the above-listed complaints and amended complaints disputing infringement and/or validity of the patents asserted against it. Along with their answers, each of Alkem, Hetero, Cipla Ltd, DRL, Emcure, Glenmark, Macleods, Mankind, Pharmascience, Sandoz Inc., Shilpa, Actavis, Torrent, Unichem and Zydus Pharmaceuticals (USA) Inc. filed declaratory judgment counterclaims asserting that some or all of the patents are not infringed and/or are invalid. In August 2019, based on a joint request by Celgene and Glenmark, the New Jersey District Court entered a consent judgment and injunction prohibiting the making, having made, using, selling, offering to sell, importing, or distributing of Glenmark’s apremilast product during the term of the ’940, ’638, ’302, ’101, ’536, ’243, ’330 and’541 Patents, unless authorized pursuant to a confidential settlement agreement.

Beginning in September 2016, Amgen filed 14 separate lawsuits in the Delaware District Court for infringement of our U.S. Patent No. 9,375,405 (the ’405 Patent) against a number of manufacturers of purported generic versions of our Sensipar^® product. In February 2017, the Delaware District Court consolidated these 14 lawsuits into a single case, Amgen Inc. v. Aurobindo Pharma Ltd. et al. In June 2017, Amgen filed an additional lawsuit in the Delaware District Court for infringement of the ’405 Patent which was consolidated into Amgen Inc. v. Aurobindo Pharma Ltd. et al. in August 2017. The ’405 Patent is entitled “Rapid Dissolution Formulation of a Calcium Receptor-Active Compound” and expires in 2026. All defendants responding to the complaint denied infringement and sought judgment that the ’405 Patent is invalid and/or not infringed.

Between September and November of 2017, Amgen filed, and the Delaware District Court signed, stipulated dismissals of the lawsuit against Micro Labs Ltd. and Micro Labs USA, Inc., and the lawsuit against Apotex, as well as consent judgments filed by Amgen and each of (1) Sun Pharma Global FZE, Sun Pharmaceutical Industries, Ltd. and Sun Pharmaceutical Industries, Inc. (collectively, Sun); (2) Ajanta Pharma Limited and Ajanta Pharma USA, Inc.; (3) Hetero USA Inc., Hetero Labs Ltd. and Hetero Labs Ltd. Unit V; and (4) Breckenridge. Each consent judgment stipulated to an entry of judgment of infringement and validity of the ’405 Patent and an injunction prohibiting the manufacture, use, sale, offer to sell, importation of or distribution into the United States of the respective defendant’s cinacalcet product during the term of the ’405 Patent unless specifically authorized pursuant to the confidential settlement agreement.

On March 5, 2018, the Delaware District Court commenced trial on the infringement claims and defenses in the Amgen Inc. v. Aurobindo Pharma Ltd. et al. consolidated lawsuit against the defendants that remained in the lawsuit, collectively consisting of (1) Watson Laboratories, Inc. and Actavis Pharma, Inc. (collectively, Watson); (2) Amneal Pharmaceuticals LLC and Amneal Pharmaceuticals of New York, LLC (collectively, Amneal); (3) Zydus Pharmaceuticals (USA) Inc. and Cadila Healthcare Ltd. (collectively, Zydus); and (4) Piramal Healthcare UK Limited (Piramal). Just prior to trial, the Delaware District Court signed consent judgments filed by Amgen and each of Cipla, and Strides Pharma Global Pte Limited and Strides Pharma, Inc. (collectively, Strides), and a consent judgment filed by Amgen and Aurobindo. In each consent judgment, the parties stipulated to an entry of judgment of infringement and validity of the ’405 Patent and an injunction prohibiting the manufacture, use, sale, offer to sell, importation of or distribution into the United States of the applicable defendant’s cinacalcet product during the term of the ’405 Patent unless specifically authorized pursuant to the applicable confidential settlement agreement. Just prior to trial, the Delaware District Court also entered orders dismissing each of DRL and Mylan Pharmaceuticals Inc. and Mylan Inc. (collectively, Mylan), on stipulations between Amgen and such parties, respectively, subject to the terms of confidential settlement agreements.

On July 27, 2018, the Delaware District Court issued a trial order finding on the infringement claims and defenses in the Amgen Inc. v. Aurobindo Pharma Ltd. et al. consolidated lawsuit that Zydus infringes the ’405 Patent and that Amneal, Piramal and Watson do not infringe the ’405 Patent. On August 24, 2018, the Delaware District Court issued an order dismissing, without prejudice, the invalidity counterclaims of Amneal, Piramal and Watson and entered judgment of noninfringement of the ’405 Patent in favor of Amneal, Piramal and Watson. On September 20, 2018, Amgen filed a notice of appeal to the U.S. Court of Appeals for the Federal Circuit (the Federal Circuit Court). On October 9, 2018, the Delaware District Court dismissed, without prejudice, the invalidity counterclaims of Zydus and entered judgment of infringement of the ’405 Patent by Zydus in favor of Amgen, including an order that the effective date of the FDA approval of Zydus’ generic version of Sensipar^® shall be no earlier

In December 2018, the FDA approved Watson’s generic version of Sensipar^® and Watson’s parent company, Teva Pharmaceutical Industries Ltd. (Teva), began selling its product at-risk notwithstanding that the appeals were pending at the Federal Circuit Court. On January 2, 2019, Amgen, Watson and Teva entered into a settlement agreement in which Teva agreed to stop selling its generic product until the mid-year 2021, or earlier under certain circumstances and to pay Amgen an undisclosed amount. On January 9, 2019, Watson and Amgen filed a motion asking the Delaware District Court to vacate its final judgment of noninfringement as to Watson and to enter a proposed consent judgment of infringement and validity of the ’405 Patent and an injunction prohibiting the making, having made, using, selling, offering to sell, or distributing Watson’s cinacalcet product in the United States or importing Watson’s cinacalcet product into the United States, consistent with the confidential settlement agreement. On January 11, 2019, the Federal Circuit Court stayed the pending appeal as to Watson in order for the Delaware District Court to rule on the motion of Watson and Amgen. On January 18, 2019 and January 23, 2019, respectively, Cipla and Sun filed oppositions to the motion of Watson and Amgen.

On March 19, 2019, Amgen filed an emergency motion for an injunction pending appeal, seeking an order from the Delaware District Court enjoining defendant Piramal from making, using, selling, offering for sale or importing its generic cinacalcet product. Amgen’s motion follows an announcement that Slate Run Pharmaceuticals LLC (Slate Run), in partnership with Piramal, had begun selling Piramal’s generic cinacalcet product at-risk notwithstanding the appeals pending at the Federal Circuit Court. On April 15, 2019, the Delaware District Court signed an order enjoining Piramal and Slate Run from selling their generic cinacalcet product until certain events occur related to a decision by the Federal Circuit Court on the parties’ appeal. The order has no effect on the product that Piramal and Slate Run had already sold to third parties.

On March 26, 2019, the Delaware District Court denied the joint motion for indicative ruling of Watson and Amgen. On April 10, 2019, Amgen filed an appeal to the Federal Circuit Court. On April 29, 2019, the Federal Circuit Court lifted the stay of Amgen’s appeal of the judgment of noninfringement as to Watson and consolidated it with Amgen’s appeal of the Delaware District Court’s denial of the joint motion for indicative ruling. On July 17, 2019, Amgen filed a motion requesting the Federal Circuit Court to vacate the Delaware District Court’s noninfringement judgment with respect to Watson and direct entry of the parties’ proposed consent judgment. On July 18, 2019, Cipla filed an opposition to Amgen’s motion and also moved to participate in the appeal as either an intervenor or as amicus curiae. On September 13, 2019, the Federal Circuit Court denied Amgen’s motion, lifted the stay of the briefing schedule which had been stayed pending disposition of Amgen’s motion to vacate and granted Cipla permission to file a brief as amicus curiae.

On September 11, 2019, Amgen filed a lawsuit in the Delaware District Court against The ACME Laboratories Ltd. (ACME) for infringement of Amgen’s ’405 Patent. On November 20, 2019, the Delaware District Court signed a consent judgment filed by Amgen and ACME in which the parties stipulated to an entry of judgment of infringement and validity of the ’405 Patent and an injunction prohibiting the manufacture, use, sale, offer to sell, importation of or distribution into the United States of ACME’s cinacalcet product during the term of the ’405 Patent unless specifically authorized pursuant to the confidential settlement agreement.

On April 30, 2019, two affiliates of Amgen Inc., Immunex Corporation and Amgen Manufacturing, Limited (collectively, Amgen), along with Hoffmann-La Roche Inc. (Roche), filed a lawsuit in the New Jersey District Court against Samsung Bioepis Co., Ltd. (Bioepis). This lawsuit stems from Bioepis’ submission of an application for FDA licensure of an etanercept product as biosimilar to Amgen’s ENBREL. Amgen and Roche have asserted infringement of five patents: U.S. Patent Nos. 8,063,182 (the ’182 Patent); 8,163,522 (the ’522 Patent); 7,915,225 (the ’225 Patent); 8,119,605 (the ’605 Patent); and 8,722,631 (the ’631 Patent). By their complaint, Amgen and Roche seek an injunction to prohibit Bioepis from commercializing its biosimilar etanercept product in the United States prior to the expiry of such patents. On August 5, 2019, defendant Bioepis responded to the complaint, denying infringement and seeking judgment that the patents-in-suit are invalid, unenforceable and/or not infringed. On January 9, 2020 and subject to the terms of a confidential stipulation and court order of January 6, 2020, the New Jersey District Court entered a consent injunction that prohibits Bioepis from making, using, offering to sell, selling or importing into the United States Bioepis’ etanercept product. Amgen and Bioepis entered into an agreement with respect to an injunction regarding etanercept as

On February 26, 2016, two affiliates of Amgen Inc., Immunex Corporation and Amgen Manufacturing, Limited (collectively, Amgen), along with Hoffmann-La Roche Inc. (Roche), filed a lawsuit in the New Jersey District Court against Sandoz Inc., Sandoz International GmbH and Sandoz GmbH (collectively, Sandoz). This lawsuit stems from Sandoz’s submission of an application for FDA licensure of an etanercept product as biosimilar to Amgen’s ENBREL. Amgen and Roche have asserted infringement of five patents: the ’182, ’522, ’225, ’605 and ’631 Patents. By their complaint, Amgen and Roche seek an injunction to prohibit Sandoz from commercializing its biosimilar etanercept product in the United States prior to the expiry of such patents. All Sandoz defendants responded by denying infringement and/or asserting that the patents at issue are invalid. On August 11, 2016, and subject to the terms of a confidential stipulation, the New Jersey District Court entered a preliminary injunction prohibiting Sandoz from making, using, importing, selling or offering for sale Sandoz’s etanercept product. On August 30, 2016, the FDA approved Sandoz’s Erelzi^TM, a biosimilar to ENBREL.

On September 10, 2018, the New Jersey District Court entered an order that the making, using, offering to sell or selling in the United States or the importation into the United States by Sandoz of Sandoz’s biosimilar etanercept product infringes the ’182 and ’522 Patents. The New Jersey District Court held a bench trial from September 11, 2018 to September 25, 2018, focusing on Sandoz’s challenges to the validity of these patents. On August 9, 2019, the New Jersey District Court issued its decision upholding the validity of the ’182 and ’522 Patents. On October 8, 2019, by stipulation of Amgen and Sandoz, the New Jersey District Court entered final judgment and a permanent injunction prohibiting Sandoz from making, using, importing, selling or offering for sale Sandoz’s etanercept product, and, on the same day, Sandoz appealed the final judgment to the Federal Circuit Court. Following a motion by Sandoz, the Federal Circuit Court ordered an expedited briefing schedule for the appeal and briefing on appeal has been completed. Oral argument has been set for March 4, 2020.

In October 2014, Amgen initiated a series of lawsuits that were consolidated by the Delaware District Court in December 2014 into a single case against Sanofi, Sanofi-Aventis U.S. LLC and Aventisub LLC, formerly doing business as Aventis Pharmaceuticals Inc. (collectively, Sanofi) and Regeneron Pharmaceuticals, Inc. (Regeneron), addressing seven of our patents: U.S. Patent Nos. 8,563,698; 8,829,165 (the ’165 Patent); 8,859,741 (the ’741 Patent); 8,871,913; 8,871,914; 8,883,983; and 8,889,834. These patents describe and claim monoclonal antibodies to proprotein convertase subtilisin/kexin type 9 (PCSK9). By its complaints, Amgen seeks an injunction to prevent the infringing manufacture, use and sale of Sanofi and Regeneron’s alirocumab, a monoclonal antibody targeting PCSK9. On January 29, 2016, the Delaware District Court granted Amgen’s motion to amend the complaint to add its affiliates, Amgen Manufacturing, Limited and Amgen USA Inc., as plaintiffs and to add the allegation that Sanofi and Regeneron’s infringement of Amgen’s patents is willful.

On February 22, 2016, the Delaware District Court entered a stipulated order finding alirocumab and the drug product containing it, PRALUENT^®, infringe certain of Amgen’s patents, including claims 2, 7, 9, 15, 19 and 29 of the ’165 Patent and claim 7 of the ’741 Patent. On March 18, 2016, the Delaware District Court entered judgment in favor of Amgen following a five-day jury trial and a unanimous jury verdict that these patent claims from the ’165 Patent and the ’741 Patent are all valid. On January 3, 2017, the Delaware District Court denied Sanofi and Regeneron’s post-trial motions seeking a new trial and for judgment as a matter of law, and on January 5, 2017, granted Amgen’s motion for a permanent injunction prohibiting the infringing manufacture, use, sale, offer for sale or import of alirocumab in the United States.

On January 12, 2017, Sanofi and Regeneron filed an appeal of the judgment and the permanent injunction to the Federal Circuit Court. On February 8, 2017, following a motion by Sanofi and Regeneron, the Federal Circuit Court entered a stay of the permanent injunction during the pendency of the appeal. On October 5, 2017, the Federal Circuit Court reversed in part the judgment of the Delaware District Court and remanded for a new trial two of the patent validity defenses (lack of written description and enablement of the claimed inventions), and affirmed the Delaware District Court’s judgment of infringement of claims 2, 7, 9, 15, 19 and 29 of the ’165 Patent and claim 7 of the ’741 Patent and the third patent validity defense (finding that the claimed inventions were not obvious to a person of ordinary skill in the field of the patents).

On December 6, 2017, Amgen petitioned the Federal Circuit Court for rehearing en banc, which was denied. The Federal Circuit Court issued a March 2, 2018 mandate returning the case to the Delaware District Court for a new trial on two of Sanofi and Regeneron’s challenges to the validity of our patents (lack of written description and enablement of the claimed inventions) and for further consideration of a permanent injunction. On July 23, 2018, Amgen filed a petition for certiorari with the U.S. Supreme Court seeking review of the Federal Circuit Court’s conclusion that the judgment affirming the validity of Amgen’s patents was based, in part, on an erroneous application of the law of written description. On January 7, 2019, the U.S. Supreme

On February 25, 2019, a jury of the Delaware District Court unanimously upheld the validity of claims 19 and 29 of the ’165 Patent and claim 7 of the ’741 Patent. The jury also found that claims 7 and 15 of the ’165 Patent meet the enablement requirement, but are invalid for failure to meet the written description requirement. On March 18, 2019, Sanofi and Regeneron filed post-trial motions seeking to reverse judgment as a matter of law or for a new trial with respect to claims 19 and 29 of the ’165 Patent and claim 7 of the ’741 Patent, and Amgen filed a motion for a permanent injunction. On June 6, 13 and 21, 2019, the Delaware District Court held evidentiary hearings on Amgen’s motion for a permanent injunction against PRALUENT^®. On August 28, 2019, the Delaware District Court ruled on the post-trial motions, denying Sanofi and Regeneron’s request for a new trial and their request to reverse the jury verdict that the ’165 Patent and the ’741 Patent provide written description support for the claimed inventions. The Delaware District Court also ruled as a matter of law that claims 19 and 29 of the ’165 Patent and claim 7 of the ’741 Patent are invalid for failing to meet the enablement requirement, overturning the jury verdict. On October 23, 2019, Amgen filed a notice of appeal to the Federal Circuit Court.

On February 24, 2016, the European Patent Office (EPO) granted European Patent No. 2,215,124 (EP 2,215,124) to Amgen. This patent describes and claims monoclonal antibodies to PCSK9 and methods of treatment. On February 24, 2016, Sanofi filed an opposition to the patent in the EPO seeking to invalidate it. In November 2016, Sanofi-Aventis Deutschland GmbH, Sanofi-Aventis Groupe S.A. and Sanofi Winthrop Industrie S.A. filed a joint opposition against Amgen’s patent, and each of Eli Lilly and Company, Regeneron and Strawman Ltd. also filed oppositions to Amgen’s patent. On November 30, 2018, the EPO confirmed the validity of Amgen’s EP 2,215,124, which has been appealed to the Technical Board of Appeal. A two-day hearing is scheduled to begin on March 24, 2020.

On August 7, 2018, Amgen Inc. and its wholly-owned subsidiary, Amgen Manufacturing, Limited (collectively, Amgen), filed a lawsuit in the U.S. District Court for the Southern District of Florida (the Florida District Court) against Apotex for infringement of U.S. Patent No. 9,856,287 (the ’287 Patent) in accordance with the patent provisions of the Biologics Price Competition and Innovation Act (BPCIA). This lawsuit stemmed from Apotex’s submissions of applications for FDA licensure of a pegfilgrastim product as biosimilar to Amgen’s Neulasta^® and a filgrastim product as biosimilar to Amgen’s NEUPOGEN^®. By its complaint, Amgen sought, among other remedies, an injunction prohibiting Apotex from infringing the ’287 Patent. On April 18, 2019, Apotex answered the complaint including counterclaims seeking declaratory judgments of noninfringement and invalidity. On August 27, 2019, the Florida District Court granted an unopposed motion to substitute Accord BioPharma in place of Apotex. On November 14, 2019, the parties entered into a settlement agreement resolving all issues between the parties. On November 15, 2019, the Florida District Court issued an order dismissing the case without prejudice.

On February 17, 2017, the Patent Trial and Appeal Board (PTAB) of the U.S. Patent and Trademark Office (USPTO) granted Apotex’s petition to institute inter partes review (IPR) proceeding of the of U.S. Patent No. 8,952,138 (the ’138 Patent), challenging claims of the ’138 Patent as unpatentable. On May 22, 2017, Amgen filed its response. The PTAB issued a final decision holding all but one claim of the ’138 Patent as unpatentable, and on March 16, 2018, Apotex filed a request for rehearing. On May 20, 2019, the PTAB issued a decision denying Apotex’s request for rehearing on the PTAB’s finding and sua sponte amending the final decision with a finding that the one remaining claim in Amgen’s ’138 Patent is unpatentable. On July 22, 2019, Amgen filed a notice of appeal to the Federal Circuit Court with respect to all claims held to be unpatentable. On August 5, 2019, Apotex provided notice that it would not participate in the appeal. On September 16, 2019, the USPTO filed a notice of intervention on the appeal.

On March 8, 2018, Amgen Inc. and its wholly-owned subsidiary, Amgen Manufacturing, Limited (collectively, Amgen), filed a lawsuit in the New Jersey District Court against Kashiv Biosciences, LLC, formerly known as Adello Biologics, LLC (Kashiv). This lawsuit stemmed from Kashiv’s submission of an application for FDA licensure of a filgrastim product as biosimilar to Amgen’s NEUPOGEN^®. Amgen initially asserted infringement of 17 of our patents. Amgen sought an injunction to prohibit Kashiv from commercializing its biosimilar filgrastim product in the United States prior to the expiry of these patents. Following discovery in October 2018, Amgen filed a first amended complaint in the New Jersey District Court adding as defendants Amneal Pharmaceuticals LLC and Amneal Pharmaceuticals, Inc. and reducing the number of patents-in-suit from 17 to 4: U.S. Patent Nos. 8,940,878 (the ’878 Patent); the ’138 Patent; 9,643,997 (the ’997 Patent); and the ’287 Patent. Kashiv responded to the first amended complaint, seeking judgment that our patents-in-suit are not infringed by Kashiv’s biosimilar filgrastim product and that our patents are invalid.

On July 18, 2018, Amgen Inc. and its wholly owned subsidiary, Amgen Manufacturing, Limited (collectively, Amgen), filed a lawsuit in the Delaware District Court against Pfizer Inc. and Hospira Inc. (collectively, Pfizer). This lawsuit stems from Pfizer’s submission of an application for FDA licensure of a filgrastim product as biosimilar to Amgen’s NEUPOGEN^®. Amgen has asserted infringement of the ’997 Patent and seeks, among other remedies, injunctive relief to prohibit Pfizer from infringing the ’997 Patent. On July 20, 2018, the FDA approved Pfizer’s NIVESTYM^TM, a biosimilar to NEUPOGEN^®, which was subsequently launched in October 2018.

On August 9, 2018, Pfizer answered the complaint and counterclaimed seeking a declaration that Pfizer does not infringe Amgen’s ’997 Patent and that the patent is invalid. On March 22, 2019, Amgen filed an amended complaint against Pfizer in the Delaware District Court narrowing the patent claims at issue in the infringement dispute and adding a request for damages. On April 11, 2019, Pfizer answered Amgen’s amended complaint including counterclaims seeking declaratory judgments of noninfringement and invalidity. Trial is scheduled to commence on June 15, 2020.

On February 11, 2020, Amgen Inc. and its wholly owned subsidiary, Amgen Manufacturing, Limited (collectively, Amgen), filed a lawsuit in the Delaware District Court against Hospira, Inc. and Pfizer Inc. (collectively, Pfizer). This lawsuit stems from Pfizer’s submission of an application for FDA licensure of a pegfilgrastim product as biosimilar to Amgen’s Neulasta^®. Amgen has asserted infringement of U.S. Patent No. 8,273,707 (the ’707 Patent) and seeks, among other remedies, injunctive relief to prohibit Pfizer from infringing the ’707 Patent.

On July 23, 2019, Amgen and its wholly owned subsidiary, Amgen Manufacturing, Limited, filed a lawsuit in the U.S. District Court for the Southern District of California (the California Southern District Court) against Tanvex BioPharma USA, Inc., Tanvex BioPharma, Inc. and Tanvex Biologics Corporation (collectively, Tanvex) for infringement of the ’287 Patent in accordance with the patent provisions of the BPCIA. This lawsuit stemmed from Tanvex’s submission of an application for FDA licensure of a filgrastim product as biosimilar to Amgen’s NEUPOGEN^®. By its complaint, Amgen sought, among other remedies, an injunction prohibiting Tanvex from infringing the ’287 Patent. On September 23, 2019, Tanvex responded to Amgen’s complaint, denying infringement and seeking judgment of noninfringement and invalidity of Amgen’s ’287 Patent. On December 17, 2019, Amgen and Tanvex entered into a settlement agreement resolving all issues between the parties. On December 20, 2019, the California Southern District Court dismissed all claims and counterclaims without prejudice.

On September 18, 2015, Amgen Inc. and its wholly owned subsidiary, Amgen Manufacturing, Limited (collectively, Amgen), filed a lawsuit in the Delaware District Court against Hospira, Inc. (Hospira), a subsidiary of Pfizer Inc., for infringement of Amgen’s U.S. Patent Nos. 5,856,298 (the ’298 Patent) and 5,756,349 (the ’349 Patent) in accordance with the patent provisions of the BPCIA and for a declaration that Hospira has failed to comply with certain requirements of the BPCIA. This lawsuit stems from the submission by Hospira under the BPCIA of an application for FDA licensure of an epoetin product as biosimilar to Amgen’s EPOGEN^®. By its complaint, Amgen seeks, among other remedies, an injunction prohibiting Hospira from using or selling infringing cells and/or product manufactured during the ’298 or the ’349 Patent terms and enjoining Hospira from commencing commercial marketing of any biosimilar epoetin product until a date that is at least 180 days after Hospira provides legally effective notice to Amgen. On August 19, 2016, Hospira responded to the complaint denying patent infringement and any violation of the BPCIA and seeking judgment that the patents-in-suit are invalid and not infringed by Hospira. On January 23, 2017, the Delaware District Court entered an order construing the claims of the ’349 and ’298 Patents and holding that two claims of the ’298 Patent are invalid for failure to properly narrow the claim on which they depend. On September 22, 2017, after a five-day trial, the jury returned a verdict finding the ’298 Patent valid and infringed by Hospira and the ’349 Patent not infringed. The jury awarded Amgen $70 million in damages for Hospira’s infringement. On October 23, 2017, Hospira moved for judgment as a matter of law of noninfringement and invalidity of the ’298 Patent or, in the alternative, for reduction of the damage award or a new trial on the ’298 Patent, which was denied on August 27, 2018. On May 15, 2018, the FDA approved Hospira’s RETACRIT^®, a biosimilar to EPOGEN^®, which was subsequently launched on November 14, 2018. On September 11, 2018, the Delaware District Court entered final judgment.

On January 24, 2019, Coherus BioSciences, Inc. (Coherus) filed a lawsuit in the Delaware District Court that the formulation of AMJEVITA^TM infringes three patents: U.S. Patent Nos. 10,155,039; 10,159,732; and 10,159,733. By its complaint, Coherus sought, among other remedies, injunctive relief prohibiting patent infringement. On April 18, 2019, Amgen responded to the lawsuit denying patent infringement and seeking judgment that the patents-in-suit are invalid, unenforceable and/or not infringed by Amgen. On November 26, 2019, the Delaware District Court entered a stipulated order dismissing Coherus’ infringement claims with prejudice and Amgen’s defenses and counterclaims as moot.

On June 21, 2018, Genentech Inc. (Genentech) and City of Hope filed a lawsuit in the Delaware District Court alleging Amgen’s infringement of 37 patents by Amgen’s submission of an application for FDA licensure of KANJINTI^TM, Amgen’s biosimilar version of Genentech’s Herceptin^® (trastuzumab). On July 19, 2018, Genentech, City of Hope and Amgen filed a joint stipulation to dismiss certain of the patents from the lawsuit and Genentech and City of Hope filed an amended complaint narrowing its allegations of infringement to 18 of the 37 patents. Among other remedies, Genentech and City of Hope seek injunctive relief prohibiting patent infringement. On August 23, 2018, Genentech and City of Hope moved to dismiss Amgen’s unenforceability counterclaims and affirmative defense. On November 7, 2018, in accordance with the scheduling order issued by the Delaware District Court, Genentech and City of Hope reduced the number of asserted patents from 18 to 10. On January 17, 2019, Genentech and the City of Hope filed a second amended complaint that removed one of the remaining 10 asserted patents and added a different patent.

On July 10, 2019, Genentech filed a motion asking the Delaware District Court for a temporary restraining order and preliminarily injunction prohibiting Amgen from commercially launching, marketing or selling KANJINTI^TM until the Delaware District Court renders a decision on the merits of Genentech’s asserted U.S. Patent Nos. 6,627,196; 7,371,379; and 10,160,811. Following Amgen’s opposition, on July 18, 2019, the Delaware District Court denied Genentech’s motion. On July 19, 2019, Genentech filed a notice of appeal and a motion requesting the Federal Circuit Court to enter an injunction prohibiting Amgen from continuing with its launch of KANJINTI^TM until final resolution of Genentech’s appeal. On July 24, 2019, the Delaware District Court entered an order dismissing City of Hope as a party to the lawsuit and dismissing with prejudice Genentech’s claims for infringement of a number of expired patents, leaving eight patents asserted by Genentech in the litigation. On August 7, 2019, the Federal Circuit Court denied Genentech’s motion for an injunction pending appeal. Briefing of the appeal has been completed and argument has been scheduled for March 3, 2020. On September 4, 2019, Genentech filed its third amended complaint adding a demand for a jury trial and an award of damages for infringement. On September 23, 2019, the Delaware District Court ordered a stipulated dismissal with prejudice of all claims for infringement of certain asserted patents, leaving four patents asserted by Genentech in the litigation. On September 24, 2019, Amgen filed its answer to Genentech’s third amended complaint denying infringement of any valid patent claim. The jury trial has been rescheduled to begin on April 20, 2020.

On October 6 and October 18, 2017, Genentech and City of Hope filed separate lawsuits in the Delaware District Court respectively alleging Amgen’s infringement of (i) 24 of the 27 patents listed by Genentech in the BPCIA exchange and (ii) 25 of the same 27 patents, in each case by Amgen’s submission for FDA licensure of MVASI^TMas biosimilar to Genentech’s Avastin^® (bevacizumab) and for noncompliance with certain provisions of the BPCIA. On December 6, 2017, Genentech and City of Hope amended their complaints to allege that Amgen will also infringe newly issued U.S. Patent No. 9,795,672. On April 17, 2018, the Delaware District Court granted Amgen’s motion to dismiss certain claims by Genentech and City of Hope that Amgen had not complied with the BPCIA.

On August 31, 2018, in accordance with the scheduling order issued by the Delaware District Court, Genentech and City of Hope reduced the number of asserted patents in each lawsuit to eight, asserting the same patents in each case. On October 22, 2018, the two cases were consolidated by the Delaware District Court. On August 22, 2019 and October 29, 2019, by stipulation of the parties, the Delaware District Court entered judgment of noninfringement, in each instance, with respect to one of the patents asserted in the consolidated lawsuit, leaving a total of six remaining patents asserted by Genentech in the litigation. Trial is scheduled to begin on November 30, 2020.

On February 11, 2020, the Delaware District Court granted Genentech’s motion to dismiss Amgen’s counterclaim seeking judgment that U.S. Patent Nos. 6,610,516 and 7,323,553 are invalid, unenforceable and not infringed based on the Court’s finding that Genentech has represented that it does not plan to assert those patents against Amgen’s MVASI^TM product. On February 12, 2020, the Delaware District Court denied Amgen’s motion for leave to amend its answer, affirmative defenses and counterclaims to add affirmative defenses and counterclaims that U.S. Patent No. 8,574,869 is unenforceable for inequitable conduct and unclean hands. The Delaware District Court also denied Genentech’s motion for leave to amend its complaint to add allegation of infringement of U.S. Patent No. 9,714,293.

On March 29, 2019, Genentech and City of Hope filed a lawsuit against Amgen in the Delaware District Court alleging infringement of 14 patents. All but two of the 14 patents asserted in this lawsuit have already been the subject of litigation pending among these parties in this court relating to Amgen’s submission of the application that led to the FDA licensure of MVASI^TMas biosimilar to Genentech’s Avastin^® (bevacizumab). Among other remedies, Genentech and City of Hope are seeking injunctive relief. On July 10, 2019, Genentech, alleging that Amgen’s notice of commercial marketing pursuant to the BPCIA is insufficient, filed motions asking the Delaware District Court for a temporary restraining order and enforcement of the BPCIA to prohibit Amgen from commercially marketing MVASI^TM until Amgen has provided new notice and waited until the expiry of the notice period. Following Amgen’s opposition, on July 18, 2019, the Delaware District Court denied Genentech’s motions. On July 19, 2019, Genentech filed a notice of appeal and a motion requesting the Federal Circuit Court to enter an injunction prohibiting Amgen from marketing MVASI^TM until final resolution of Genentech’s appeal, which was denied on August 16, 2019. Briefing of the appeal has been completed.

On January 8, 2019, Cipla filed a separate lawsuit in the Delaware District Court against Amgen seeking a declaration that provisions of its settlement agreement with Amgen have been triggered by Teva’s at-risk launch of Watson’s generic version of Sensipar^®, giving Cipla a right to market its own generic version under its settlement agreement with Amgen. Cipla’s complaint also alleges antitrust violations by Amgen. The portions of the complaint covering Cipla’s settlement agreement were filed with the court under seal and remain confidential.

On March 11, 2019, following an announcement by Cipla that it had begun selling its generic cinacalcet product in the United States, Amgen filed a counterclaim and related motion for preliminary injunction in the Delaware District Court. Amgen’s motion seeks to prohibit Cipla from making, having made, using, selling, offering to sell or distributing its generic cinacalcet product in breach of the settlement agreement between the parties. On May 2, 2019, the Delaware District Court denied Amgen’s motion for preliminary injunction, and Amgen filed its notice of appeal in the United States Court of Appeals for the Third Circuit (the Third Circuit Court of Appeals). On May 3, 2019, Amgen filed a motion for injunction pending appeal in the Delaware District Court, which was denied on May 9, 2019. On May 13, 2019, Amgen filed a motion for injunction pending appeal and expedited briefing in the Third Circuit Court of Appeals. On May 23, 2019, the Third Circuit Court of Appeals denied the motion for injunction pending appeal and granted the request for expedited briefing. On July 16, 2019, the Third Circuit Court of Appeals affirmed the Delaware District Court’s decision denying Amgen’s motion for a preliminary injunction. On October 15, 2019, Amgen moved to dismiss Cipla’s antitrust and fraud claims brought in the Delaware District Court for lack of standing and failure to state a claim. On December 6, 2019, Cipla filed its response to Amgen’s complaint and, on January 10, 2020, Amgen filed its response.

On April 4, 2019, Amgen filed a lawsuit in the U.S. District Court for the Southern District of New York against Novartis Pharma AG seeking a declaratory judgment that Novartis Pharma AG materially breached two collaboration agreements related to the development and commercialization of Aimovig^® (erenumab-aooe) due to Novartis Pharma AG’s affiliate Sandoz Gmbh entering into a contract manufacturing agreement with Alder BioPharmaceuticals, Inc. (Alder) related to eptinezumab, an expected direct competitor to Aimovig^® and entrant in the calcitonin gene-related peptide (CGRP)-related migraine therapy market. Amgen seeks to terminate its collaboration agreements with Novartis Pharma AG and also seeks damages from Novartis Pharma AG for breach of contract and negligent misrepresentation. Also on April 4, 2019, Novartis Pharma AG initiated a separate lawsuit against Amgen in the same court seeking declaratory judgment that Novartis Pharma AG, alternatively, did not materially breach the collaboration agreements or, even if it did breach the collaboration agreements, such breach was not material and has been cured, and that Amgen may not terminate the collaboration agreements. On April 8, 2019, Amgen answered Novartis Pharma AG’s complaint and filed counterclaims seeking a declaratory judgment that Novartis Pharma AG materially breached the collaboration agreements due to its affiliate Sandoz Gmbh entering into the contract manufacturing agreement with Alder. In its counterclaim, Amgen seeks to terminate its collaboration agreements with Novartis Pharma AG and also seeks damages from Novartis Pharma AG for breach of contract and negligent misrepresentation. On July 16, 2019, Novartis Pharma AG filed an amended complaint adding a claim for breach of contract alleging Novartis Pharma AG is owed amounts associated with 2018 budget overruns and Amgen responded with a counterclaim alleging additional breaches by Novartis Pharma AG of the collaboration agreements. On September 17, 2019 and October 8, 2019, Novartis Pharma AG and Amgen, respectively, each filed its motion for judgment on the pleadings. Amgen was granted leave to file its amended counterclaims on February 3, 2020 and filed its Amended Answer to Novartis’ First Amended Complaint and Second Amended Counterclaims for Affirmative Relief on February 4, 2020 to add a fraudulent inducement claim.

From February 21, 2019, to April 10, 2019, four plaintiffs filed putative class action lawsuits against Amgen and various entities affiliated with Teva alleging anticompetitive conduct in connection with settlements between Amgen and manufacturers of generic cinacalcet product. Two of those actions were brought in the Delaware District Court, captioned UFCW Local 1500 Welfare Fund v. Amgen Inc., et al. (February 21, 2019) (Local 1500) and Cesar Castillo, Inc. v. Amgen Inc., et al. (February 26, 2019) (Castillo). The third action was brought in the New Jersey District Court, captioned Teamsters Local 237 Welfare Fund, et al. v. Amgen Inc., et al. (March 14, 2019) (Local 237) and the fourth action was brought in the U.S. District Court for the Eastern District of Pennsylvania (the Eastern Pennsylvania District Court), captioned KPH Healthcare Services, Inc. a/k/a Kinney Drugs, Inc. v. Amgen Inc., et al (April 10, 2019) (KPH).

Each of the lawsuits is brought on behalf of a putative class of direct or indirect purchasers of Sensipar^® and alleges that the plaintiffs have overpaid for Sensipar^® as a result of Amgen’s conduct that allegedly improperly delayed market entry by manufacturers of generic cinacalcet products. The lawsuits focus predominantly on the settlement among Amgen, Watson and Teva of the parties’ patent infringement litigation. Each of the lawsuits seeks, among other things, treble damages, equitable relief and attorneys’ fees and costs. On April 10, 2019, the plaintiff in the KPH lawsuit filed a motion seeking to have the four lawsuits consolidated and designated as a multidistrict litigation (MDL) in the Eastern Pennsylvania District Court, and the plaintiff in the Local 1500 lawsuit filed a motion seeking to have the four lawsuits, along with Cipla Ltd. v. Amgen Inc., consolidated and designated as a MDL in the Delaware District Court. On July 31, 2019, the MDL panel entered an order consolidating in the Delaware District Court the four class action lawsuits. On September 13, 2019, the plaintiffs filed amended complaints, and on October 15, 2019, Amgen filed its motion to dismiss both the direct purchaser plaintiffs’ consolidated class action complaint and the indirect purchaser end payor plaintiffs’ complaint. On December 6, 2019, the plaintiffs responded to Amgen’s motion to dismiss and, on January 10, 2020, Amgen filed its response.

From March 18, 2019, to May 10, 2019, twelve purported class actions against Amgen, along with AbbVie Inc. and AbbVie Biotechnology Ltd. (collectively, AbbVie), were filed in the U.S. District Court for the Northern District of Illinois (the Illinois Northern District Court). The cases are captioned: UFCW Local 1500 Welfare Fund v. AbbVie Inc., et al. (March 18, 2019) (Local 1500); Fraternal Order of Police, Miami Lodge 20, Insurance Trust Fund v. AbbVie Inc., et al. (March 20, 2019); Mayor and City Council of Baltimore v. AbbVie Inc., et al. (March 22, 2019); Pipe Trades Services MN Welfare Fund v. AbbVie Inc., et al. (March 29, 2019); St. Paul Electrical Workers’ Health Plan v. AbbVie Inc., et al. (March 29, 2019); Welfare Plan of the International Union of Operating Engineers Locals 137, 137A, 137B, 137C and 137R v. AbbVie Inc., et al. (April 1, 2019); Law Enforcement Health Benefits, Inc. v. AbbVie, Inc., et al. (April 9, 2019) (Law Enforcement); Kentucky Laborers District Council Health and Welfare Fund v. AbbVie, Inc., et al. (April 16, 2019); Sheet Metal Workers’ Local Union No. 28 Welfare Fund v. AbbVie, Inc., et al. (April 19, 2019) (Sheet Metal Workers’); Locals 302 & 612 of The International Union of Operating Engineers-Employers Construction Industry Health And Security Trust Fund v. AbbVie Inc., et al. (April 25, 2019) (Construction Industry); Louisiana Health Service & Indemnity Co., d/b/a Blue Cross and Blue Shield of Louisiana and HMO Louisiana, Inc. v. AbbVie Inc., et al. (April 30, 2019) (Louisiana Health); and Cleveland Bakers and Teamsters Health and Welfare Fund v. AbbVie Inc., et al. (May 10, 2019) (Cleveland Bakers) collectively, Humira^® Antitrust Class Actions).

In each of the Humira^® Antitrust Class Actions, the plaintiffs bring federal antitrust claims along with various state law claims under common law and antitrust, consumer protection and unfair competition statutes. In each case, the plaintiffs specifically allege that AbbVie has unlawfully monopolized the alleged market for Humira^® and biosimilars of Humira^®, including by creating an allegedly unlawful so-called patent thicket around Humira^®. In the Local 1500, Sheet Metal Workers’ and Construction Industry cases, the plaintiffs further allege that AbbVie entered into allegedly unlawful market division agreements with Amgen and other companies that had developed Humira^® biosimilars, including Bioepis, Mylan, Sandoz, Inc., Fresenius Kabi USA, LLC, Pfizer Inc. and Momenta Pharmaceuticals, Inc., in connection with the settlement of patent litigation relating to Humira^®, whereby Amgen and the other defendants that have developed Humira^® biosimilars were permitted to market those products in Europe as early as October 2018, while remaining off the market in the United States until 2023. In each of the Humira^® Antitrust Class Actions other than the Local 1500 and Construction Industry cases, the plaintiffs allege that AbbVie and Amgen entered into an allegedly unlawful settlement agreement under which Amgen allegedly agreed to delay its entry into the U.S. market with AMGEVITA^TM, its Humira^® biosimilar, in exchange for an alleged promise of exclusivity as the sole Humira^® biosimilar in that market for five months, beginning in January 2023. In each of the Humira^® Antitrust Class Actions, plaintiffs seek injunctive relief, treble damages

and attorney’s fees on behalf of a putative class of third-party payers and/or consumers that have indirectly purchased, paid for or provided reimbursement for Humira^® in the United States. Defendants’ responses to the first six complaints were stayed by the court. On June 4, 2019, the Illinois Northern District Court entered an order consolidating the twelve purported class action cases for pre-trial purposes and on June 13, 2019, entered an order requiring the plaintiffs to file a consolidated complaint by August 12, 2019. On August 9, 2019, the plaintiffs filed their consolidated complaint in the Illinois Northern District Court. The consolidated class action complaint names as defendants Amgen, along with AbbVie, Bioepis, Sandoz, Inc. and Fresenius Kabi USA LLC. On October 11, 2019, the defendants filed a joint motion to dismiss the consolidated complaint (as well as brief individual motions), challenging the legal sufficiency of the plaintiffs’ allegations to state any claim for relief under the law. On November 19, 2019, plaintiffs filed their opposition to the motion to dismiss. On December 20, 2019, defendants filed their reply in support of the motion to dismiss. No argument date has been set.