Martin H. Huber, M.D., has served as a member of the board of directors since September 2021. Dr. Huber currently serves as the President of R&D and Chief Medical Officer of Xilio Therapeutics, Inc. Prior to joining Xilio in April 2020, Dr. Huber served as Senior Vice President, Chief Medical Officer at TESARO, Inc. from September 2015 until its January 2019 acquisition by GlaxoSmithKline plc, and once acquired, as Senior Vice President, Clinical, until April 2020. Prior to TESARO, Dr. Huber served as Vice President, Oncology Clinical Research at Merck Research Laboratories from 2012 to 2015. Prior to Merck, he served in roles of increasing responsibility at Schering-Plough, Hoffmann-La Roche and Rhone-Poulenc Rorer, where he led teams in the areas of oncology clinical development, drug safety and pharmacovigilance. He was previously an Assistant Professor of Oncology at the University of Texas M.D. Anderson Cancer Center. Dr. Huber currently serves on the Board of Directors of Mersana Therapeutics, Inc. Dr. Huber earned his M.D. from Baylor College of Medicine.