Committee Composition

Empty Heading	Audit Committee	Compensation Committee	Nominating and Corporate Governance Committee
Richard Prins Lead Independent Director
Howard Lee, Ph.D. Director
Michael A. Zasloff, M.D., Ph.D. Director
Floyd F. Petersen, M.P.H. Director
Diane G. Gerst, B.A Director
Gayle M. Deflin, M.B.A. Director

= Chairperson

= Member

= Lead Independent Director