Alexander Denner joined our board of directors in October 2020. Dr. Denner is a founding partner and the chief investment officer of Sarissa Capital Management LP, or Sarissa, a registered investment advisor, where he has been since 2011. Dr. Denner also has been chairman and chief executive officer of Sarissa Capital Acquisition Corp., a special purpose acquisition company since December 2020. Prior to joining Sarissa, Dr. Denner served as a senior managing director at Icahn Capital L.P, an investment advisory firm, from 2006 to 2011. Prior to that, he served as a portfolio manager at Viking Global Investors, a private investment fund, and Morgan Stanley Investment Management, a global asset management firm. Dr. Denner serves on the board of directors of Biogen Inc. (Nasdaq: BIIB), Sarissa Capital Acquisition Corp. (Nasdaq: SRSA) and Attralus, Inc. In the last five years, Dr. Denner has served as chair of the board of directors of Ariad Pharmaceuticals, Inc. and The Medicines Company, as well as a member of the board of directors of Bioverativ Inc. Dr. Denner earned his B.S. in mechanical engineering from Massachusetts Institute of Technology, an M.S. and M.Phil. in mechanical engineering from Yale University and an interdisciplinary Ph.D. from Yale University.