Our Leadership Team


Chief Financial Officer and Chief Operating Officer

Gary Yeung, CFA, MBA, is the Chief Financial Officer and Chief Operating Officer. Mr. Yeung joins Ambrx from Erasca, where he served as CFO & COO helping finance the company and advance several compounds into clinical trials. Prior to Erasca, Mr. Yeung helped build two biotech companies, Guardant Health and Annexon Biosciences. At Guardant, he was vice president of the early cancer detection business and a member of the leadership team. At Annexon, Mr. Yeung served as vice president of business and development operations. He also devoted 12 years at Genentech, building organizations to develop and launch innovative therapies. He oversaw the portfolio and project management functions that produced 42 INDs and developed numerous FDA-approved treatments, including Tecentriq and Venclexta. He also held leadership roles in finance and commercial operations to support the launch and expansion of the Immunology and BioOncology franchises. Earlier in his career, Mr. Yeung was a consultant with McKinsey and an operational leader with GE. He holds a B.S. in chemical engineering from the University of California, Berkeley, and an MBA from UCLA. He is a Chartered Financial Analyst (CFA).