Roger W. Crandall (2, 3*, 5)
Chairman, President and
Chief Executive Officer
Massachusetts Mutual
Life Insurance Company
Springfield, Massachusetts

Karen H. Bechtel (1, 5)
Managing Director, Retired
The Carlyle Group
New York, New Yorkk

Mark T. Bertolini (2, 3, 4*)
Chairman and Chief Executive Officer
Aetna Inc.
Hartford, Connecticut

Kathleen A. Corbet (1, 3, 5)
Lead Director
Massachusetts Mutual
Life Insurance Company
Springfield, Massachusetts

Founder and Principal
Cross Ridge Capital, LLC
New Canaan, Connecticut

Former President
Standard & Poor’s
New York, New York

James H. DeGraffenreidt, Jr. (2, 4)
Chairman and Chief Executive Officer,
Retired
WGL Holdings, Inc.
Washington, D.C.

Robert A. Essner (2, 4)
Chairman and Chief Executive Officer,
Retired
Wyeth
Madison, New Jersey

Isabella D. Goren (1, 5)
Former Chief Financial Officer
American Airlines, Inc. and
AMR Corporation
Fort Worth, Texas

Jeffrey M. Leiden, M.D., Ph.D. (2, 5)
Chairman, President and
Chief Executive Officer
Vertex Pharmaceuticals Incorporated
Boston, Massachusetts

Marc F. Racicot (2*, 3, 4)
Former Governor of Montana
Former President
American Insurance Association
Washington, D.C.

Laura J. Sen (1, 4)
Former Non-Executive Chairman
and Former Chief Executive Officer
BJ’s Wholesale Club, Inc.
Westborough, Massachusetts

William T. Spitz (2, 3, 5*)
Principal, Co-Founder and Director
Diversified Trust Company
Nashville, Tennessee

Vice Chancellor for
Investments Emeritus
Vanderbilt University
Nashville, Tennessee

H. Todd Stitzer (1*, 3, 5)
Former Chief Executive Officer
Cadbury PLC
London, United Kingdom