C. Greg Guyer

Executive Vice President, Chief Technical Officer

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Greg Guyer, Ph.D. joined BioMarin in May 2020 and currently serves as Executive Vice President and Chief Technical Officer. Greg is responsible for overseeing our manufacturing, process development, quality, supply chain, engineering and analytical chemistry departments.

From 2015 to 2019, Greg served in a number of positions of increasing responsibility at Bristol Myers Squibb (BMS), primarily leading all of operations and biologic development. Prior to BMS, Greg worked for Merck & Co., Inc., from 1994 to 2015, leading various global organizations in biologic and pharmaceutical operations, quality, regulatory, emerging markets strategy and enterprise systems.

Greg currently serves on the board of the University of Georgia Research Foundation. Greg holds a Ph.D. in Analytical Chemistry from American University, a B.S. in Chemistry from the University of Georgia, and an M.B.A. from Lehigh University.