Alexander Denner joined our board of directors in October 2020. Dr. Denner is a founding partner and chief investment officer of Sarissa Capital Management LP, where he has been since 2011. Sarissa Capital focuses on improving the strategies of companies to enhance shareholder value. From 2006 to 2011, Dr. Denner served as a senior managing director at Icahn Capital L.P. Prior to that, he served as a portfolio manager at Viking Global Investors and Morgan Stanley Investment Management. Dr. Denner serves on the board of directors of Biogen 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 received an S.B. 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, also from Yale University.