Committee Composition

Overview of Committee Composition and Member Roles
Director Name	Audit Committee	Compensation and Talent Committee	Nominating and Corporate Governance Committee
Frank K. Clyburn, Jr. Independent Director	Member of the Audit CommitteeAudit Committee	Chairperson of the Compensation and Talent CommitteeCompensation and Talent Committee
Christopher Hite Independent Director	Chairperson of the Audit CommitteeAudit Committee		Member of the Nominating and Corporate Governance CommitteeNominating and Corporate Governance Committee
Andrew Kaplan Independent Director		Member of the Compensation and Talent CommitteeCompensation and Talent Committee	Chairperson of the Nominating and Corporate Governance CommitteeNominating and Corporate Governance Committee
Adam Koppel, M.D., Ph.D. Independent Director		Member of the Compensation and Talent CommitteeCompensation and Talent Committee
Yuting (Shelley) Liu, Ph.D. Independent Director
Martin Mackay, Ph.D. Independent Director			Member of the Nominating and Corporate Governance CommitteeNominating and Corporate Governance Committee
John F. Milligan, Ph.D. Chairman of the BoardIndependent Director	Member of the Audit CommitteeAudit Committee
Ron C. Renaud, Jr.