Robert Zerbe, M.D., 74 Independent Chairman of the Board Retired Chief Executive Officer, QUATRx Pharmaceuticals Company Director Since: 2006 Other Current Public Company Directorships: Vericel Board committee(s): None Audit Committee Key Experience and Qualifications BioPharma: Dr. Zerbe has held numerous senior management positions at major pharmaceutical companies throughout his career, including serving as Chief Executive Officer of QUATRx Pharmaceuticals Company as well as senior positions at Eli Lilly and Company, Parke-Davis and Pfizer. CEO/GM: Served as CEO of a drug development company for over 15 years Research & Development: Led the clinical development programs for a number of key products, including Prozac, Lipitor and Neurontin. Professional Highlights Chief Executive Officer of QUATRx Pharmaceuticals Company, a venture-backed drug development company, which he co-founded (2000-2016) Senior Vice President of Worldwide Clinical Research and Development of Pfizer (formerly Parke-Davis), as well as other senior executive management positions (1993-2000) Managing Director, Lilly Research Center U.K., of Eli Lilly and Company (including Vice President of Clinical Investigation and Regulatory Affairs, as well as several other clinical research and development positions) (1982-1993) Other Leadership Positions and Experience Member of the boards of directors of Metabolic Solutions Development Company and Cirius Therapeutics, both private companies focused on metabolic diseases Education M.D. from Indiana University School of Medicine Post-doctoral work in internal medicine, endocrinology and neuroendocrinology at Indiana University and the National Institutes of Health