Our Board of Directors
R. David Yost
Nominating and Governance Committee Chair
Mr. Yost joined our Board in March 2009. Mr. Yost served as Director and Chief Executive Officer of AmerisourceBergen, a comprehensive pharmaceutical services provider, from August 2001 to June 2011 when he retired. He was Chairman and Chief Executive Officer of AmeriSource Health Corporation from May 1997 to August 2001, and President and Chief Executive Officer of AmeriSource from May 1997 to December 2000. Mr. Yost also held a variety of other positions with AmeriSource Health Corporation and its predecessors from 1974 to 1997. Mr. Yost also serves as a director of Marsh & McLennan Companies, Inc., and Bank of America. Mr. Yost is a graduate of the U.S. Air Force Academy and holds an M.B.A. from the University of California, Los Angeles.