EX-32.1 4 c85006exv32w1.htm EXHIBIT 32.1 Exhibit 32.1
Exhibit 32.1
Section 1350 Certification of Chief Executive Officer
In connection with the Quarterly Report of AmerisourceBergen Corporation (the “Company”) on Form 10-Q for the quarter ended March 31, 2009 as filed with the Securities and Exchange Commission on the date hereof (the “Report”), I, R. David Yost, President and Chief Executive Officer of the Company, certify, pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002, that to the best of my knowledge:
(1) The Report fully complies with the requirements of Section 13(a) or 15(d) of the Securities Exchange Act of 1934; and
(2) The information contained in the Report fairly presents, in all material respects, the financial condition and results of operations of the Company.
     
/s/ R. David Yost
 
R. David Yost
President and Chief Executive Officer
   
 
   
May 8, 2009