Mr. Ramsay has served as a member of our Board of Directors since April 2017 and as a member of the Board of Directors of Mast Therapeutics, Inc. from June 2011 to April 2017. Mr. Ramsay serves on the board of directors of Exuma Biotech, Inc., a privately held biotechnology company, and served on the board of directors of La Jolla Pharmaceutical Company from September 2019 until its acquisition by Innoviva, Inc. in August 2022. Mr. Ramsay served as Senior Vice President and Chief Financial Officer of Bonti, Inc., a private, clinical stage biotechnology company focused on the development and commercialization of neurotoxin products for therapeutic and aesthetic applications, from February 2018 until its acquisition by Allergan plc in October 2018. Mr. Ramsay served as Chief Financial Officer of Halozyme Therapeutics, Inc. (Nasdaq: HALO), a biotechnology company developing and commercializing novel oncology therapies, from 2003 to 2009 and from May 2013 until his retirement in July 2015. He also served as Halozyme s Vice President, Corporate Development from May 2009 to May 2013. From 2000 to 2003, Mr. Ramsay was Vice President, Chief Financial Officer of Lathian Systems, Inc., a provider of technology-based sales solutions for the life science industry. From 1998 to 2000, he served as Vice President, Treasurer and Director, Corporate Finance of Valeant Pharmaceuticals International, Inc. (formerly ICN Pharmaceuticals, Inc.), a multinational specialty pharmaceutical company. Mr. Ramsay began his career at Deloitte & Touche, where he obtained his CPA license. Mr. Ramsay holds a B.S. in business administration from the University of California, Berkeley and an M.B.A. with a dual major in finance and strategic management from The Wharton School at the University of Pennsylvania. We believe Mr. Ramsay s significant experience as chief financial officer of life science companies, particularly his experiences at Halozyme during its successful development and its commercialization of its first products, and at a large audit and financial advisory firm, qualify him to serve on the Board of Directors.