Board of Directors

James E. Stowers Jr
Co-Chairman of the Board
     Stowers Institute for Medical Research
Co-Founder
     Stowers Institute for Medical Research
Founder
     American Century Companies, Inc.

Richard W. Brown
Co-Chairman of the Board
     Stowers Institute for Medical Research

David M. Chao, Ph.D.
President
     Stowers Institute for Medical Research

William B. Neaves, Ph.D.
Chief Executive Officer
     Stowers Institute for Medical Research

Roderick L. Sturgeon
Chief Financial Officer
     Stowers Institute for Medical Research

David A. Welte
Executive Vice President & General Counsel
     Stowers Institute for Medical Research

Officers

Richard W. Brown
Chair

David M. Chao, Ph.D.
President

William B. Neaves, Ph.D.
Chief Executive Officer

David A. Welte
Secretary