Peter S. Ringrose, Ph.D.

Director

Peter S. Ringrose, Ph.D., has served as a director since October 2013. Prior to our spin-off from Innoviva in June 2014 and since April 2010, Dr. Ringrose served as a director of Innoviva. Dr. Ringrose was Chief Scientific Officer and President of Bristol-Myers Squibb Pharmaceutical Research Institute from 1997 to 2002 and Senior Vice President for Worldwide Drug Discovery at Pfizer Inc. from 1982 to 1996. Dr. Ringrose served as chair of the Biotechnology and Biological Sciences Research Council UK from 2003 to 2009 and was a non-executive director of Cambridge Antibody Technology until its acquisition by Astra Zeneca in 2006, of Astex Therapeutics Inc. until its acquisition by SuperGen in September 2011 and of Biotica Technology, Ltd. until December 2013. He is currently a non-executive director of Rigel Pharmaceuticals Inc. Dr. Ringrose is a council member of the UK Foundation for Science and Technology and was a member the UK Government's Technology Strategy Board until 2009. Dr. Ringrose received a B.Sc., M.A. and Ph.D. in Biochemistry from the University of Cambridge.