Management Team
David J. Mazzo, PhD
President and Chief Executive Officer
Kristen K. Buck, MD
Executive Vice President of R&D and Chief Medical Officer
Gregory S. Berkin
Chief Information Officer and Data Protection Officer
John D. Menditto
Vice President, Investor Relations and Corporate Communications
James Nisco
Senior Vice President, Finance and Treasury and Chief Accounting Officer
William K. Sietsema, PhD
Vice President, Global Regulatory Affairs
Ryan Quick
Vice President, Chemistry, Manufacturing and Controls
Tariq Imam
Senior Vice President, Business Development and Operations and General Counsel