William Rieflin

William Rieflin has served as a member of our board of directors since May 2020. From September 2010 to September 2018, he served as the Chief Executive Officer of NGM Biopharmaceuticals, Inc. Since April 2015, Mr. Rieflin has served as Chairman of the Board at RAPT Therapeutics, Inc., a publicly-traded biopharmaceutical company and since September 2018 he has served as Executive Chairman of the Board at NGM Biopharmaceuticals, Inc., a publicly-traded biotechnology company. Mr. Rieflin previously served on the board of directors of Anacor Pharmaceuticals, Inc., a pharmaceutical company, from April 2011 to June 2016 and of XenoPort, Inc. from September 2010 to July 2016. Mr. Rieflin also served as a board member of Flexus Biosciences until its acquisition in 2015. He currently serves on the board of directors of Kallyope, Inc. and Lycia Therapeutics, Inc., both privately-held companies. Mr. Rieflin received an MBA from the University of Chicago Booth Graduate School of Business, a J.D. from Stanford Law School, and a B.S. in Industrial and Labor Relations from Cornell University.