Committee Composition Audit Committee Compensation Committee Corporate Governance-Nominating Committee Disclosure Committee Thomas H. Adams, Ph.D. Audit Committee Compensation Committee Timothy M. Block, Ph.D. Audit Committee Corporate Governance-Nominating Committee John P. Brancaccio, C.P.A. Audit Committee Compensation Committee Tamar D. Howson Corporate Governance-Nominating Committee Arnold Lippa, Ph.D. Audit Committee Compensation Committee Corporate Governance-Nominating Committee = Chairperson = Member