Cencora, Inc. — Director's Dealing 2011

May 4, 2011

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: AMERISOURCEBERGEN CORP (ABC)
CIK: 0001140859
Period of Report: 2011-05-02

Reporting Person: McGee Henry Wadsworth III (Director)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2011-05-02	Common Stock	M	7180	$13.3574	Acquired	28674	Direct
2011-05-02	Common Stock	M	18520	$15.3219	Acquired	47194	Direct
2011-05-02	Common Stock	M	13281	$17.775	Acquired	60475	Direct
2011-05-02	Common Stock	A	455	—	Acquired	60930	Direct
2011-05-02	Common Stock	S	38981	$41.0001	Disposed	21949	Direct
2011-05-02	Common Stock	G	1528	—	Disposed	20421	Direct

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2011-05-02	Non-qualified Stock Option	$13.3574	M	7180	Disposed	2014-11-01	Common Stock (7180)	Direct
2011-05-02	Non-qualified Stock Option	$15.3219	M	18520	Disposed	2015-03-07	Common Stock (18520)	Direct
2011-05-02	Non-qualified Stock Option	$17.775	M	13281	Disposed	2019-02-20	Common Stock (13281)	Direct

Footnotes

F1: Quarterly grant of restricted stock received in lieu of retainer for no consideration and vests 100% on the third anniversary of the date of grant.

F2: Exercisable in three equal annual installments on 11/1/05, 11/1/06 and 11/1/07

F3: Exercisable in three equal annual installments on 3/7/06, 3/7/07 and 3/7/08

F4: Exercisable in three equal annual installments on 02/20/2010, 02/20/2011 and 02/20/2012