Item 7.01. Regulation FD Disclosure.

AmerisourceBergen Corporation ("Registrant") will hold its annual Investor Day Meeting in New York City on December 12, 2012 at 12:30 p.m. Eastern Standard Time.

In a news release, issued on December 12, 2012, the Registrant announced that it will reaffirm its previous fiscal year 2013 earnings guidance at its Investor Day Meeting to be held in New York City. The Registrant continues to expect diluted earnings per share from continuing operations for fiscal year 2013 to be in a range of $3.06 to $3.16. The key assumptions supporting the diluted earnings per share from continuing operations range for fiscal year 2013 include: revenue growth of between 6 percent and 9 percent; operating income growth in the 3 percent to 5 percent range; an operating margin decline in the high single to low double-digit basis points range and free cash flow in the range of $750 million to $850 million, which includes capital expenditures in the $180 million range. Subject to market conditions, the Registrant expects to spend at least $200 million to repurchase its common shares in fiscal year 2013.

The news release issued on December 12, 2012 is furnished as Exhibit 99.1 to this report and the slides that the Registrant will present at the Investor Day Meeting are furnished as Exhibit 99.2 to this report. Exhibits 99.1 and 99.2 are incorporated herein by reference.

Item 9.01. Financial Statements and Exhibits.

(d) Exhibits.

99.1 News Release, dated December 12, 2012, regarding Registrant's guidance for fiscal year 2013.

99.2 Slides for Investor Day Meeting held on December 12, 2012.

---