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AmerisourceBergen Press Release AmerisourceBergen Corporation P.O. Box 959 Valley Forge , PA 19482 AMERISOURCEBERGEN REPORTS FISCAL 2021 FIRST QUARTER RESULTS Revenues of $ 52.5 billion for the First Quarter , a 9.7 Percent Increase Year - Over - Year First Quarter GAAP Diluted EPS of $ 1.81 and Adjusted Diluted EPS of $ 2.18 Adjusted Diluted EPS Guidance Range Raised to $ 8.40 to $ 8.60 for Fiscal 2021 Exhibit 99.1 VALLEY FORGE , PA , February 4 , 2021 - AmerisourceBergen Corporation ( NYSE : ABC ) today reported that in its fiscal year 2021 first quarter ended December 31 , 2020 , revenue increased 9.7 percent year - over - year to $ 52.5 billion . On the basis of U.S. generally accepted accounting principles ( GAAP ) , diluted earnings per share ( EPS ) was $ 1.81 for the December quarter of fiscal 2021 , compared to $ 0.90 in the prior year quarter . Adjusted diluted EPS , which is a non- GAAP measure that excludes items described below , increased 24 percent to $ 2.18 in the fiscal first quarter . AmerisourceBergen is updating its outlook for fiscal year 2021. The Company does not provide forward - looking guidance on a GAAP basis , as discussed below in Fiscal Year 2021 Expectations . Adjusted diluted EPS guidance has been raised from the previous expectation of $ 8.25 to $ 8.50 to a range of $ 8.40 to $ 8.60 , reflecting growth of 6 percent to 9 percent versus last fiscal year . " AmerisourceBergen is driven by our purpose and we continue to leverage our scale and expertise to provide innovative solutions for our partners . Our strong performance in the December quarter and the improved outlook and financial guidance we are providing for fiscal year 2021 are the result of our continued ability to execute and the resilience of our businesses , " said Steven H. Collis , Chairman , President and Chief Executive Officer of AmerisourceBergen . " As we move our business forward , we will continue to focus on execution excellence and supporting pharmaceutical innovation globally to enable positive outcomes by facilitating market access , " Mr. Collis continued . " Our ongoing focus on long - term , sustainable growth and our purpose of being united in our responsibility to create healthier futures position us well to create significant value for all our stakeholders . "