VALLEY FORGE, Pa.--(BUSINESS WIRE)--AmerisourceBergen Corporation (NYSE: ABC) today announced that Tim G. Guttman, 53, has been named Senior Vice President and Chief Financial Officer, effective immediately. Guttman will report to Steven H. Collis, AmerisourceBergen’s President and Chief Executive Officer. He had been serving as the Company’s Acting Chief Financial Officer since February 13, 2012, and was Vice President and Corporate Controller since joining AmerisourceBergen in 2002.