Donnellan earned a bachelor’s degree in electrical engineering from Auburn University in 1976. He later earned an MBA in finance from the Wharton School of Business at the University of Pennsylvania in 1978. He is retired as principal and founding member of Vulcan Value Partners in Birmingham, Alabama.
Donnellan serves on the Auburn Alumni Engineering Council and is a life member of the Auburn Alumni Association.
He is a member of Auburn’s 1856 Society, Foy Society (10 Years) and the Engineering Ginn Society.