Jeffrey S. Hatfield has served as a director since April, 2017. Mr. Hatfield currently serves as Chief Executive Officer and a member of the Board of Directors at Zafgen, a biopharmaceutical company dedicated to significantly improving the health and well-being of patients affected by metabolic diseases including type 2 diabetes and obesity. Previously, Mr. Hatfield served as President, Chief Executive Officer and a member of the Board of Directors of Vitae Pharmaceuticals from 2004 to 2016. As CEO, Mr. Hatfield successfully transitioned Vitae from a novel platform technology start-up to a thriving product-focused company with a robust pipeline of multiple first-in-class clinical stage and pre-clinical stage assets generated from the company’s internal discovery engine. Mr. Hatfield took the company public in 2014, and in October 2016, Vitae Pharmaceuticals was acquired by Allergan plc for approximately $639 million in cash. Prior to joining Vitae Pharmaceuticals, Mr. Hatfield worked at Bristol-Myers Squibb in a variety of executive positions, including: Senior Vice President of BMS’s Immunology and Virology Divisions, where he was responsible for all aspects of the $1 billion business; President and General Manager, Canada; and, Vice President, U.S. Managed Health Care. He previously served as a Board member of Ambit Biosciences before its acquisition by Daiichi-Sankyo in 2015, and as a member of the Board of Directors of the Biotechnology Industry Organization (BIO), serving on the Executive Company Section. Mr. Hatfield currently serves as a Board member of InVivo Therapeutics, a biotechnology company, and as a member of the Advisory Committees for: Purdue University’s College of Pharmacy, where he is a Distinguished Alumni and is on faculty; Drexel University’s LeBow College of Business; and the Chapman-KGI School of BioPharmacy. Mr. Hatfield holds an M.B.A. from The Wharton School, University of Pennsylvania and a bachelor’s degree in Pharmacy from Purdue University.