R. David Yost is on the board of Johnson Controls, Inc., International Federation of Pharmaceutical Wholesalers, Air Force Academy Foundation, Inc. and The USAFA Endowment.

Mr. Yost previously occupied the position of Chief Executive Officer & Director at AmerisourceBergen Corp. Chairman, President & Chief Executive Officer at Amerisource Health Corp. and Chief Executive Officer & President at AmerisourceBergen Drug Corp. (both are subsidiaries of AmerisourceBergen Corp.) and Co-Chief Operating Officer & EVP-Operations at The Kauffman-Lattimer Co.

R. David Yost received an undergraduate degree from United States Air Force Academy and an MBA from the University of California, Los Angeles.