VALLEY FORGE, Pa.--(BUSINESS WIRE)--AmerisourceBergen Corporation (NYSE:ABC) today reported that in its fiscal year 2016 first quarter ended December 31, 2015, adjusted diluted earnings per share increased 11.4 percent to $1.27. Revenue increased 9.3 percent to $36.7 billion in the quarter. On the basis of U.S. generally accepted accounting principles (GAAP), diluted earnings per share were $1.46 for the December quarter of fiscal 2016. In the tables that follow, we present our GAAP results as well as GAAP to non-GAAP reconciliations.