Committee Composition

	Audit Committee	Compensation Committee	Nominating and Corporate Governance Committee	Science and Technology Committee
Kevin Buehler	Audit Committee		Nominating and Corporate Governance Committee
Stanley Frankel, M.D.				Science and Technology Committee
Geno Germano	Audit Committee	Compensation Committee		Science and Technology Committee
Derek Jantz, Ph.D.				Science and Technology Committee
Shari Lisa Piré, J.D.			Nominating and Corporate Governance Committee
Raymond Schinazi Ph.D., D.Sc.		Compensation Committee	Nominating and Corporate Governance Committee	Science and Technology Committee
Shalini Sharp	Audit Committee	Compensation Committee
Sam Wadsworth, Ph.D.				Science and Technology Committee

= Chairperson = Member