Roger W. Crandall

Chairman, President, and Chief Executive Officer, Massachusetts Mutual Life Insurance Company, Springfield, Massachusetts
Board Committees: Executive (Chair), Investment, and Technology & Governance

Kathleen A. Corbet

Founder and Principal, Cross Ridge Capital, LLC, New Canaan, Connecticut; Former President, Standard & Poor’s, New York, New York
Board Committees: Audit, Executive, and Investment (Chair)

James H. Degraffenreidt, Jr.

Former Chairman and Chief Executive Officer, WGL Holdings, Inc., Washington, D.C.
Board Committees: Audit, Executive, and Human Resources (Chair)

Isabella D. Goren

Former Chief Financial Officer, American Airlines, Inc. and AMR Corporation, Fort Worth, Texas
Board Committees: Audit (Chair), Executive, and Investment

Bernard A. Harris, Jr., MD, MBA

CEO and Managing Partner, Vesalius Ventures, Inc., Houston, Texas
Board Committees: Audit and Investment

Michelle K. Lee

Founder and Chief Executive Officer, Obsidian Strategies, Inc., Menlo Park, California; Former Vice President, Machine Learning Solutions Lab & Computer Vision, Amazon Web Services, Palo Alto, California
Board Committees: Human Resources and Technology & Governance

Jeffrey M. Leiden, MD, PhD

Lead Director, Massachusetts Mutual Life Insurance Company, Springfield, Massachusetts; Executive Chairman, Former President and Chief Executive Officer, Vertex Pharmaceuticals Incorporated, Boston, Massachusetts
Board Committees: Executive, Human Resources, and Technology & Governance

David H. Long

Former Chairman, Chief Executive Officer, and President, Liberty Mutual Insurance Company, Boston, Massachusetts
Board Committees: Human Resources and Technology & Governance

Michael T. Rollings

Former Chief Financial Officer and Managing Director of Finance, The Vanguard Group, Malvern, Pennsylvania
Board Committees: Audit and Investment

Laura J. Sen

Former Non-Executive Chairman and Former Chief Executive Officer, BJ’s Wholesale Club, Inc., Westborough, Massachusetts
Board Committees: Executive, Human Resources, and Technology & Governance (Chair)

William T. Spitz

Principal and Co-Founder, Diversified Trust Company, Nashville, Tennessee; Vice Chancellor for Investments Emeritus, Vanderbilt University, Nashville, Tennessee
Board Committees: Audit and Investment

Retired from the Board as of April 8, 2026

Amy M. Stepnowski

Chief Investment Officer, The Hartford,
Hartford, Connecticut
Board Committees: Audit and Investment