Committee Composition

Audit Committee Compensation Committee Nominating and Corporate Governance Committee
Anthony Evnin, Ph.D. Audit Committee Nominating and Corporate Governance Committee
Mark A. Goldsmith, M.D., Ph.D. Audit Committee Compensation Committee Nominating and Corporate Governance Committee
Peter Svennilson Audit Committee Compensation Committee
Robert Tepper, M.D. Compensation Committee Nominating and Corporate Governance Committee
= Chairperson = Member = Financial Expert = Chairman of the Board