Committee Composition

	Audit Committee	Compensation Committee	Nominating and Corporate Governance Committee
Kristina Burow	Audit Committee		Nominating and Corporate Governance Committee
Andrew Guggenhime	Audit Committee
Richard Heyman, Ph.D.		Compensation Committee	Nominating and Corporate Governance Committee
Jeff Jonker			Nominating and Corporate Governance Committee
John McHutchison, AO, M.D.		Compensation Committee
Amir Nashat, Ph.D.	Audit Committee
Julia Owens, Ph.D.		Compensation Committee

= Chairperson = Member = Chairman of the Board

Investor Relations