Mike Byrnes

Chief Financial Officer

Mike Byrnes has served as our Chief Financial Officer since December 2020. Prior to joining eFFECTOR Therapeutics, Mr. Byrnes was Senior Vice President of Finance at Principia Biopharma, Inc., which was acquired by Sanofi in September 2020. Prior to that, Mr. Byrnes served as Chief Financial Officer of Alkahest, Inc. from May 2018 to January 2020 and Chief Financial Officer of Ocera Therapeutics, Inc., from December 2014 until is acquisition by Mallinckrodt Pharmaceuticals in December 2017. Mr. Byrnes served as Corporate Controller of Maxygen, Inc. from March 2010 to December 2014 and prior to that, held finance positions of increasing responsibility from 2000 to 2010 with NeurogesX, Inc., Lipid Sciences, Inc. and ADAC Laboratories, Inc. Mr. Byrnes has served on the board of directors of CERo Therapeutics, Inc., a biopharmaceutical company since February 2024. Mr. Byrnes received his B.S.C. in Finance from Santa Clara University and an M.B.A. from California State University, at Hayward.