Juan Jaen

Juan Carlos Jaen is the founder of Arcus Biosciences, Inc., founded in 2015, serving as President since 2024.
Dr. Jaen was the founder of Flexus Biosciences, Inc., founded in 2013, and served as President, Head-Research & Development from 2013 to 2015.
Dr. Jaen was the founder of PACT Pharma, Inc., founded in 2016, and served as President from 2016 to 2017.
Current jobs include Director at Hexagon Bio, Inc., Director at R2M Pharma, Inc., Director at Bella Charitable Foundation since 2015, Director at Breakpoint Therapeutics GmbH, and Director at Shasqi, Inc. Former jobs include Chemistry Director at Warner-Lambert Co. from 1983 to 1996, VP-Chemistry & Director-Medicinal Chemistry at Tularik, Inc. from 1996 to 2004, Chemistry Director at Parke-Davis & Co. Ltd. from 1983 to 1996, Vice President-Chemistry at Amgen, Inc. from 1996 to 2006, Chief Scientific Officer & SVP-Drug Discovery at ChemoCentryx, Inc. from 2011 to 2013, and President, Head-Research & Development at Rapt Therapeutics, Inc. from 2013 to 2015.
Education includes a doctorate from the University of Michigan conferred in 1983 and an undergraduate degree from Universidad Complutense de Madrid conferred in 1983.