Director Name Audit Committee Compensation Committee Nominating and Corporate Governance Committee Science Committee Sanford Zweifach Audit Committee Compensation Committee Nominating and Corporate Governance Committee Regina Hodits Ph.D. Audit Committee Science Committee John Hohneker, M.D. Nominating and Corporate Governance Committee Science Committee Briggs Morrison M.D. Compensation Committee Science Committee Björn Odlander M.D., Ph.D. Nominating and Corporate Governance Committee Michael Torok Audit Committee = Independent Director = Chairperson = Member = Chairman of the Board