Jonathan Lim, M.D. has served as a member of our board of directors since January 2021. Dr. Lim is the Chief Executive Officer and Executive Chairman of Erasca, Inc., a clinical-stage precision oncology company. Dr. Lim is also the Chief Executive Officer and founder of City Hill, LLC, a venture capital firm, since December 2018. Dr. Lim co-founded Erasca, Inc., a clinical-stage precision oncology company, in July 2018 and currently serves as the Chairman of its board of directors and Chief Executive Officer. Since December 2018, Dr. Lim has also served as the Chairman and Co-founder of Boundless Bio, Inc., a biotechnology company. Dr. Lim is also the Managing Partner and Founder of City Hill, LLC, a venture capital firm. Previously, Dr. Lim co-founded Ignyta, Inc., a pharmaceutical company, in 2011 and served as the Chairman of its board of directors, President and Chief Executive Officer until its acquisition by Roche, a multinational healthcare company, in December 2018. He also previously served as Chairman and Co-founder of Bonti, Inc., a clinical-stage biotechnology company, from August 2015 until its October 2018 acquisition by Allergan PLC, a pharmaceutical company; Chairman, Chief Executive Officer and Co-founder of Eclipse Therapeutics, LLC, a private biotechnology company, from 2011 until its 2012 acquisition by Bionomics Ltd., a clinical-stage biopharmaceutical company; and President, Chief Executive Officer and Chairman-then-Director of Halozyme Therapeutics, Inc., a biotechnology company, from 2003 to 2010. From 2001 to 2003, Dr. Lim was a management consultant at McKinsey & Company, a global management consulting firm, where he specialized in the healthcare industry. From 1999 to 2001, Dr. Lim was a recipient of a National Institutes of Health Postdoctoral Fellowship, during which time he conducted clinical outcomes research at Harvard Medical School. Dr. Lim s prior experience also includes two years of clinical training in general surgery at the New York Hospital-Cornell Medical Center and Memorial Sloan Kettering Cancer Center. Dr. Lim received an M.P.H. in Health Care Management from Harvard University, an M.D. from McGill University, and a B.S. and M.S. in Biological Sciences from Stanford University. We believe Dr. Lim is qualified to serve on our board of directors based on his significant experience building and leading successful biotechnology companies and his scientific and clinical expertise.