Dr. MacQuitty, our Chairman of the Board, has served on our board of directors since June 2011. Since July 2018, Dr. MacQuitty has served on the board of directors of and as Chief Executive Officer of D2G Oncology, Inc., an oncology biotechnology company. Since April 2016, Dr. MacQuitty has served as a Venture Partner at Lightspeed Venture Partners, an early-stage technology venture capital firm. From May 2015 to April 2017, Dr. MacQuitty served as Chief Executive Officer of Forty Seven, Inc., an immuno-oncology company. From May 1999 to December 2014, Dr. MacQuitty served in various roles, including Partner, at Abingworth Management Inc., a trans-Atlantic bio-investment firm. Dr. MacQuitty holds a B.A. and M.A. in Chemistry from Oxford University, a Ph.D. in Chemistry from the University of Sussex, and an M.B.A. from the Stanford Graduate School of Business.