Briggs W. Morrison, M.D.Chief Executive Officer and Director

Briggs W. Morrison, M.D. has served as our Chief Executive Officer since June 2015 and as a member of our board of directors since July 2015. Dr. Morrison currently serves as a managing director of MPM Capital, a healthcare-focused venture capital firm, since June 2015. Prior to joining us, he served as Executive Vice President, Global Medicines Development and Chief Medical Officer at AstraZeneca plc, a publicly traded pharmaceutical and biopharmaceutical company, from January 2012 to June 2015, leading the company’s global, late-stage development organization and serving as a member of the AstraZeneca senior executive team. He previously held a number of positions at Pfizer Inc., a publicly traded company, culminating in his appointment as Head, Medical Affairs, Safety and Regulatory Affairs for Pfizer’s human health business, and also served in roles of increasing responsibility at Merck Research Laboratories, a division of Merck & Co., Inc., ascending to the role of Vice President, Clinical Sciences, Oncology, responsible for clinical development of all novel anti-cancer drugs. Dr. Morrison was chairman of the board of TransCelerate BioPharma Inc., an industry-funded company charged with improving aspects of clinical trials, from 2014 to 2015, a member of the executive committee of the Clinical Trials Transformation Initiative sponsored by FDA, and is on the board of the Alliance for Clinical Research Excellence and Safety, Arvinas, Inc, a publicly traded company, as well as the boards of a number of private companies. Dr. Morrison received a B.S. in biology from Georgetown University and an M.D. from the University of Connecticut.

Michael A. MetzgerPresident, Chief Operating Officer and Director

Michael A. Metzger has served as our President and Chief Operating Officer since May 2015 and as a member of our board of directors since July 2019. Prior to joining us, Mr. Metzger was President and COO from December 2013 to October 2014 and President and Chief Executive Officer and a member of the board of directors of Regado Biosciences, Inc., a former publicly traded company that merged with Tobira Therapeutics, Inc., from October 2014 to May 2015, where he oversaw the company’s successful merger with Tobira Therapeutics, Inc. in 2015. Previously, Mr. Metzger served as Executive Vice President and Chief Operating Officer at Mersana Therapeutics, Inc., a privately held biopharmaceutical company developing novel immunoconjugate therapies for cancer, from March 2011 to November 2013, and in senior business development positions including leading mergers and acquisitions at Forest Laboratories, LLC, which was acquired by Allergan plc, a publicly traded company, from 2006 to February 2011. Prior to Forest, Mr. Metzger served as Vice President Corporate Development at Onconova Therapeutics, Inc., from 2001 until 2006, and was a Managing Director at MESA Partners, Inc., a venture capital firm, from 1997 to 2001. Mr. Metzger currently serves on the board of CTI Biopharma Corp., a publicly traded biopharmaceutical company, Tarveda Therapeutics and Northern Westchester Hospital, Northwell Health. Mr. Metzger received a B.A. from George Washington University and an M.B.A. in Finance from the New York University Stern School of Business.

Michael L. Meyers, M.D., Ph.D.Chief Medical Officer

Michael L. Meyers, M.D., Ph.D. has served as our Chief Medical Officer since May 2016. Dr. Meyers previously served as our Senior Vice President, Chief Development Officer from August 2015 to May 2016. Prior to joining us, Dr. Meyers held a number of senior roles at Johnson & Johnson, a publicly traded company, serving as Vice President, GU Oncology, Compound and Clinical Leader, and as Vice President, Oncology Scientific Innovation in Johnson and Johnson’s London Innovation Centre. Dr. Meyers also led the U.S. Oncology Medical Affairs team at Aventis Pharmaceuticals Inc., a privately held life sciences company, predecessor to Sanofi-Aventis U.S. LLC, and worked in oncology clinical development at the Schering-Plough Research Institute. Dr. Meyers served on the Memorial Sloan Kettering Cancer Center faculty, specializing in Clinical Immunology and melanoma. He received his M.D. and his Ph.D. in Microbiology and Immunology from Albert Einstein College of Medicine in New York and was elected to the AΩA Honor Medical Society. Dr. Meyers completed his residency in Internal Medicine at Columbia Presbyterian Medical Center and his fellowship, where he served as Chief Fellow in Medical Oncology, at Memorial Sloan Kettering Cancer Center.

Peter Ordentlich, Ph.D.Chief Scientific Officer and Founder

Peter Ordentlich, Ph.D. co-founded the company in October 2005 and has served as our Chief Scientific Officer since November 2013. Dr. Ordentlich previously served as our Vice President, Translational Medicine from January 2012 to October 2013, our Executive Director, Translational Science from January 2011 to December 2011, and our Director, Scientific Affairs and Strategic Alliances from January 2008 to December 2010. Prior to founding the company, Dr. Ordentlich was a scientist at the Salk Institute for Biological Studies, a biological research non-profit organization. He also spent five years as a research scientist at X-Ceptor Therapeutics, Inc., a drug discovery company, which was acquired by Exelixis, Inc. Dr. Ordentlich received a B.A. in Biochemistry and a Ph.D. in Immunology from the University of Pennsylvania.

Richard P. SheaChief Financial Officer and Treasurer

Richard P. Shea has served as our Chief Financial Officer since February 2017. Mr. Shea previously served as a member of our Board of Directors from January 2014 to February 2017. From July 2007 through December 2016, Mr. Shea served as Senior Vice President and Chief Financial Officer of Momenta Pharmaceuticals Inc., a publicly traded biotechnology company, and was its Vice President and Chief Financial Officer since October 2003. Prior to joining Momenta, Mr. Shea served as Chief Operating Officer and Chief Financial Officer of Variagenics Inc., a publicly traded pharmacogenomics company, that was merged with Hyseq Pharmaceuticals Inc., and as Vice President, Finance of Genetics Institute, Inc., a publicly traded biotechnology company, which was acquired by Wyeth Pharmaceuticals, Inc., which was then acquired by Pfizer, Inc. Mr. Shea received an A.B. from Princeton University and an M.B.A. from the Public Management Program at Boston University.