Committee Composition

Below is a summary of our committee structure and membership information. To read more about any of the committees, click on committee names in the chart below.

Director Name	Audit Committee	Compensation Committee	Commercial Operations and Compliance Oversight Committee	Finance Committee	Nominating, Governance and Review Committee	Medical and Science Committee
Spencer R. Berthelsen, M.D. Independent Director		Chairperson of the Compensation CommitteeCompensation Committee			Member of the Nominating, Governance and Review CommitteeNominating, Governance and Review Committee	Member of the Medical and Science Committee
Allene M. Diaz Independent Director	Member of the Audit CommitteeAudit Committee		Member of the Commercial Operations and Compliance Oversight CommitteeCommercial Operations and Compliance Oversight Committee
Ludwig Hantson, Ph.D Independent Director			Member of the Commercial Operations and Compliance Oversight CommitteeCommercial Operations and Compliance Oversight Committee	Member of the Finance CommitteeFinance Committee
Michael Hayden, CM OBC MB ChB PhD FRCP(C) FRSC Independent Director						Chairperson of the Medical and Science Committee
Joan E. Herman Independent Director	Member of the Audit CommitteeAudit Committee	Member of the Compensation CommitteeCompensation Committee	Member of the Commercial Operations and Compliance Oversight CommitteeCommercial Operations and Compliance Oversight Committee
Joseph Klein, III Financial ExpertIndependent Director	Chairperson of the Audit CommitteeAudit Committee			Member of the Finance CommitteeFinance Committee
Joseph Loscalzo, M.D., Ph.D. Chairman of the BoardIndependent Director					Chairperson of the Nominating, Governance and Review CommitteeNominating, Governance and Review Committee	Member of the Medical and Science Committee
Peter N. Reikes Independent Director	Member of the Audit CommitteeAudit Committee			Chairperson of the Finance CommitteeFinance Committee	Member of the Nominating, Governance and Review CommitteeNominating, Governance and Review Committee
Michael Yang Independent Director		Member of the Compensation CommitteeCompensation Committee	Chairperson of the Commercial Operations and Compliance Oversight CommitteeCommercial Operations and Compliance Oversight Committee

= Independent Director = Chairperson = Member = Financial Expert = Chairman of the Board