Mr. Hassan currently serves as a Director at Warburg Pincus LLC, a global private equity firm, which he joined in 2010, and as Executive Chairman of Norstella, a role he has held since January 2026. Previously, Mr. Hassan served as Chairman and Chief Executive Officer of Schering-Plough Corporation from 2003 to 2009 and as Chairman and Chief Executive Officer of Pharmacia Corporation from 2001 to 2003. He previously held executive and leadership positions with Wyeth and Sandoz Pharmaceuticals (now Novartis). Mr. Hassan’s current public board memberships include Precigen and BridgeBio Pharma. His previous boards included Prometheus Biosciences, Amgen, Time Warner, Avon and Bausch & Lomb. Mr. Hassan has chaired the Pharmaceutical Research and Manufacturers of America and the International Federation of Pharmaceutical Manufacturers & Associations. Mr. Hassan co-founded the CEO Forum with Accenture to bring together chief executives from across the life sciences. He has also played a leadership role in the R&D Leadership Summit, an annual gathering of biopharma CEOs and research leaders focused on improving R&D productivity. He holds a B.S. in chemical engineering from the Imperial College of Science and Technology at the University of London and an M.B.A. from Harvard Business School.
