Managing Director & Partner
Warburg Pincus, LLC
Mr. Hassan is the former chairman and chief executive officer of Schering-Plough Corporation. He serves currently on the boards of Time Warner Inc. and Valeant Pharmaceuticals International, Inc., and is a managing director and partner with the private equity firm Warburg Pincus.
Hassan was chairman and chief executive officer of Schering-Plough Corporation from 2003 until its merger with Merck & Co. in November 2009. He previously served as chief executive officer and as chairman and chief executive officer of Pharmacia Corporation from 2001 to 2003 until its acquisition by Pfizer Inc. Mr. Hassan is also the former chief executive officer of Pharmacia and Upjohn Inc., which merged with the Monsanto Corporation to become Pharmacia Corporation in 2000.
He is a member of The Business Council, and is the past chairman of the board of directors of the Pharmaceutical Research and Manufacturers of America (PhRMA).
He holds a bachelor’s of science degree from the Imperial College of Science and Technology at the University of London and an M.B.A. degree from Harvard Business School.