Board of Directors Company Overview Leadership Board of Directors David V. Goeddel, Ph.D. John W. Creecy John Josey, Ph.D. Larry Lasky, Ph.D. Brett A. Ringle, J.D. William R. Sellers, M.D. Steve Winick, J.D. Board Advisors Michael S. Brown, M.D. Thilo Schroeder, Ph.D. Jim Tananbaum, M.D. McHenry T. Tichenor, Jr. Brett Zbar, M.D. Scientific Advisory Board DAVID V. GOEDDEL, PH.D. Chairman of the Board JOHN W. CREECY JOHN A. JOSEY, PH.D. LARRY LASKY, PH.D. BRETT A. RINGLE, J.D. WILLIAM R. SELLERS, M.D. STEVE WINICK, J.D. Board Advisors MICHAEL S. BROWN, M.D. THILO SCHROEDER, PH.D. JIM TANANBAUM, M.D. MCHENRY T. TICHENOR, JR. BRETT ZBAR, M.D.