Henry A. McKinnell Jr., Ph.D.

Director since October 1997

Henry A. McKinnell, Jr., age 78, serves as a member of the Audit, Governance & Nominating and Compensation & Human Resources Committees of the Board of Directors, and previously served as Chairman of the Board from April 2012 until December 2020. Dr. McKinnell served as the Chief Executive Officer of Optimer Pharmaceuticals, Inc. from February 2013 until October 31, 2013. He served as Chairman of the Board of Pfizer Inc., a pharmaceutical company, from May 2001 until his retirement in December 2006 and Chief Executive Officer from January 2001 to July 2006. He served as President of Pfizer Inc. from May 1999 to May 2001, and as President of Pfizer Pharmaceuticals Group from January 1997 to April 2001. Dr. McKinnell served as Chief Operating Officer of Pfizer Inc. from May 1999 to December 2000 and as Executive Vice President from 1992 to 1999. He served as the Chairman of the Accordia Global Health Foundation, is Chairman Emeritus of the Connecticut Science Center and is Life Director of the Japan Society. He currently serves as a director of ChemoCentryx, Inc. He served as Chairman of Optimer Pharmaceuticals, Inc. until 2013 and Emmaus Life Sciences until 2015. He served as a director of Angiotech Pharmaceuticals, Inc. until 2011, Pfizer Inc. and ExxonMobil Corporation until 2007 and John Wiley & Sons until 2005. He also served as a director of ViewRay, Inc. from April 2016 to May 2019.

Dr. McKinnell served for five years as the chief executive officer of a public pharmaceutical company with worldwide operations and, prior to that position, served as president, chief operating officer, chief financial officer and executive vice president. As a result of these positions, Dr. McKinnell brings to the Board financial expertise, global management experience and leadership skills. In addition, because the pharmaceutical business, like the Company’s, operates in a highly regulated industry, Dr. McKinnell brings to the Board an appreciation of what a complex regulatory environment means for the Company’s operations. Dr. McKinnell has also served as a director of several public companies, contributing to his perspective on corporate governance matters.