Linda Higgins, Ph.D. has served as a member of the Board since August 2021. Dr. Higgins is currently the Senior Vice President Research, Strategy, Innovation and Portfolio at Gilead Sciences, Inc. (Nasdaq: GILD). Dr. Higgins joined Gilead in December 2010 and during her first nine years led its Biology group. Prior to joining Gilead, Dr. Higgins previously served as the President & Chief Executive Officer of InteKrin Therapeutics from April 2007 until November 2010 and as Head of Research at Scios, Inc., a Johnson & Johnson company, from September 1991 until March 2007, where she provided leadership for drug discovery, preclinical development, and translational medicine. Dr. Higgins obtained her B.A. degree in Behavioral Physiology from Kenyon College and her Ph.D. in Neuroscience from the University of California, San Diego School of Medicine and conducted her post-doctoral research in Molecular Genetics at the Howard Hughes Medical Institute at the University of California, Berkeley. Dr. Higgins also currently serves on the supervisory board of Galapagos NV (Nasdaq: GLPG) and as independent director and chair of the board of directors of Ensocell Therapeutics, and previously served on the board of directors of Tizona Therapeutics, Inc. from September 2020 until December 2023. Dr. Higgins was selected to be appointed to the Board pursuant to the Investor Rights Agreement and we believe she is able to make valuable contributions to the Board due to her extensive research and business experience and her current role at Gilead Sciences, Inc.