Audit Committee Compensation Committee Nominating and Corporate Governance Committee Joshua H. Bilenker, M.D. Nominating and Corporate Governance Committee Hans Bishop Audit Committee Compensation Committee Douglas Cole, M.D. Compensation Committee Robert Nelsen Compensation Committee Michelle Seitz, CFA Audit Committee Mary Agnes (Maggie) Wilderotter Audit Committee Nominating and Corporate Governance Committee Patrick Yang, Ph.D. Nominating and Corporate Governance Committee = Chairperson = Member = Chairman of the Board = Financial Expert