Dr. McCarthy joined CytomX in 2010 as the chief business officer, served as the chief executive officer (CEO) since 2011, and has been the CEO and chairman since 2019. Previously, Dr. McCarthy was a transactional partner at Pappas Ventures. Prior to Pappas, Sean headed business development and strategy at SGX Pharmaceuticals, a structure-based drug discovery company focused on oncology. Earlier in his career he served in various research and development roles at Millennium Pharmaceuticals. Dr. McCarthy is an author on multiple peer-reviewed scientific publications and issued patents. He is a member of the board of directors of Oncoresponse, Inc. and a member of the board of directors and executive committee of California Life Sciences. Dr. McCarthy received his B.S. degree in biochemistry and pharmacology at King’s College, University of London. He also received an M.B.A. from the Rady School of Management at UCSD and a DPhil in cancer biology from St. John’s College, University of Oxford.