Board of Directors

Joseph C. Papa

Chairman of the Board and Chief Executive Officer
Robert A. Ingram Robert A. Ingram

General Partner, Hatteras Venture Partners
Robert N. Power
Robert N. Power

Corporate Director
D. Robert Hale  
D. Robert Hale

Partner, ValueAct Capital

William A. Ackman William A. Ackman

CEO, Pershing Square Capital Management LP
Thomas W. Ross Thomas W. Ross

Lead Independent Director

Dr. Fred Eshelman Dr. Fred Eshelman

Corporate Director

Stephen Fraidin Stephen Fraidin

Vice Chairman, Pershing Square Capital Management, L.P.
Amy B. Wechsler, M.D. Amy B. Wechsler, M.D.


Dr. Argeris (Jerry) N. Karabelas Dr. Argeris (Jerry) N. Karabelas

Partner, Capital Care LLC

Russel C. Robertson Russel C. Robertson

Head, Anti-Money Laundering, BMO Financial Group

Sarah B. Kavanagh

Corporate Director

Senior Management

Joseph C. Papa

Chief Executive Officer and Chairman of the Board

Paul Herendeen Paul Herendeen

Executive Vice President, Chief Financial Officer

 Christina Ackermann

Executive Vice President, General Counsel
   Dr. Ari Kellen

Executive Vice President/Company Group Chairman
 Robert Rosiello  Robert Rosiello

Executive Vice President, Corporate Development and Strategy
Thomas Appio

Executive Vice President/President, Asia Pacific

Anne Whitaker Anne Whitaker

Executive Vice President/Company Group Chairman
Pavel Mirovsky Dr. Pavel Mirovsky

President and General Manager, Europe