Stephen R. Biggar, M.D., Ph.D., has served as a director of the Company since January 2013, and as chairman of our board of directors since June 2016. Dr. Biggar currently serves as Partner at Baker Bros. Advisors LP, a registered investment adviser focused on long-term investments in life-sciences companies. Dr. Biggar joined Baker Bros. Advisors LP in 2000. Dr. Biggar currently serves on the boards of directors of Kiniksa Pharmaceuticals, Ltd. and TScan Therapeutics, Inc., each public companies. Dr. Biggar also serves on the board of directors of Notch Therapeutics, Inc., a private company, and the University of Rochester Board of Trustees. During the past five years, Mr. Biggar has served on the board of directors of Vivelix Pharmaceuticals Corp. and Neurogene, Inc. Dr. Biggar received an M.D. and a Ph.D. in immunology from Stanford University and received a B.S. in genetics from the University of Rochester. The NCG Committee believes that Dr. Biggar is qualified to serve as a member of our board of directors based on his scientific background and financial industry experience, as well as his public company board experience in the biopharmaceutical industry.