Mr. Webster served as the Chief Financial Officer of Spark Therapeutics, Inc., a publicly traded biotechnology company, since July 2014. He was previously Senior Vice President and Chief Financial Officer of Optimer Pharmaceuticals, Inc., a publicly traded biotechnology company, from July 2012 until its acquisition by Cubist Pharmaceuticals, Inc. in October 2013. Prior to joining Optimer, Mr. Webster served as SVP and Chief Financial Officer of Adolor Corporation, a biopharmaceutical company, from 2008 until its acquisition by Cubist Pharmaceuticals, Inc. in 2011. From 2007 until joining Adolor Corporation in 2008, Mr. Webster served as Managing Director, Investment Banking Division, Health Care Group for Broadpoint Capital Inc. (formerly First Albany Capital). Mr. Webster served as co-founder, President and Chief Executive Officer for Neuronyx, Inc., a biopharmaceutical company, from 2000 to 2006. Mr. Webster previously served in positions of increased responsibility, including as Director, Investment Banking Division, Health Care Group for PaineWebber Incorporated. Mr. Webster has served as a director of Nabriva Therapeutics plc, a publicly traded biopharmaceutical company, since August 2016 and Viking Therapeutics, Inc., a publicly traded biopharmaceutical company, since May 2014. Mr. Webster received an A.B. in economics from Dartmouth College and an M.B.A. in finance from The Wharton School of the University of Pennsylvania.