<PAGE>
UNITED STATES
SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549
------------
FORM 10-K/A
------------
(Mark One)
Annual Report Pursuant to Section 13 or 15(d) of the Securities Exchange Act
of 1934 [Fee Required]
[X]
For the Fiscal Year Ended September 30, 1999
OR
[_]
Transition Report Pursuant to Section 13 or 15(d) of the Securities Exchange
Act of 1934 [No Fee Required]
For the transition period from to
<TABLE>
<CAPTION>
Commission Registrant, State of Incorporation IRS Employer
File Number Address and Telephone Number Identification No.
----------- ---------------------------------- ------------------
<S> <C> <C>
33-27835-01 AmeriSource Health Corporation 23-2546940
(a Delaware Corporation)
300 Chester Field Parkway
Malvern, PA 19355-
(610) 296-4480
</TABLE>
Securities Registered Pursuant to Section 12(b) of the Act:
AmeriSource Health Corporation:
None
Securities Registered Pursuant to Section 12(g) of the Act:
AmeriSource Health Corporation:
Common Stock, $.01 par value per
share
Indicate by check mark whether the registrant (1) has filed all reports
required to be filed by Section 13 or 15(d) of the Securities Exchange Act of
1934 during the preceding 12 months (or for such shorter period that the
registrant was required to file such reports), and (2) has been subject to
such filing requirements for the past 90 days. Yes [X] No [_]
Indicate by check mark if disclosure of delinquent filers pursuant to Item 405
of Regulation S-K is not contained herein, and will not be contained, to the
best of the registrant's knowledge, in definitive proxy or information
statements incorporated by reference in Part III of this Form 10-K or any
amendment to this Form 10-K. [_]
Non-affiliates of AmeriSource Health Corporation, as of December 1, 1999, held
49,092,588 shares of voting stock. The registrant's voting stock is traded on
the New York Stock Exchange under the trading symbol "AAS." The aggregate
market value of the registrant's voting stock held by non-affiliates of the
registrant (based upon the closing price of such stock on the New York Stock
Exchange on December 1, 1999 and the assumption for this computation only that
399 Venture Partners, Inc. and all directors and executive officers of the
registrant are affiliates) was $610,589,063.25.
The number of shares of common stock of AmeriSource Health Corporation
outstanding as of December 1, 1999 was: Class A--51,178,274; Class B--8,446;
Class C--165,346.
Documents Incorporated by Reference
Portions of the following document are incorporated by reference in the Part
of this report indicated below:
Part III--Registrant's Proxy Statement for the 2000 Annual Meeting of
Stockholders.
<PAGE>
SIGNATURES
Pursuant to the requirements of Section 13 or 15(d) of the Securities
Exchange Act of 1934, the Registrant has duly caused this report to be signed
on its behalf by the undersigned, thereunto duly authorized.
AmeriSource Health Corporation
/s/ George L. James III
By: _________________________________
Date: December 29, 1999 (George L. James III) Vice
President and Chief Financial
Officer
Pursuant to the requirements of the Securities Exchange Act of 1934, this
report has been signed below on December 29, 1999 by the following persons on
behalf of the Registrant and in the capacities indicated.
Signature Title
/s/ R. David Yost President and Chief
- ------------------------------------- Executive Officer
(R. David Yost) and Director
(Principal
Executive Officer)
/s/ George L. James III Vice President and
- ------------------------------------- Chief Financial
(George L. James III) Officer (Principal
Financial Officer)
/s/ Michael D. DiCandilo Vice President,
- ------------------------------------- Controller
(Michael D. DiCandilo) (Principal
Accounting Officer)
Director
/s/ Bruce C. Bruckmann
- -------------------------------------
(Bruce C. Bruckmann)
/s/ Michael A. Delaney Director
- -------------------------------------
(Michael A. Delaney)
/s/ Richard C. Gozon Director
- -------------------------------------
(Richard C. Gozon)
/s/ Lawrence C. Karlson Director and
- ------------------------------------- Chairman
(Lawrence C. Karlson)
/s/ George H. Strong Director
- -------------------------------------
(George H. Strong)
/s/ Edward E. Hagenlocker Director
- -------------------------------------
(Edward E. Hagenlocker)
Director
- -------------------------------------
(Barton J. Winokur)
<PAGE>
EXPLANATORY NOTE
The purpose of this amendment filing is solely to bring the EDGAR database
current. Exhibit 23 was inadvertently not included in the Form 10-K filing
submitted on December 28, 1999 (Registration No. 000-20485).
<PAGE>
Consent of Independent Auditors
We consent to the incorporation by reference in the Registration Statements No.
333-45547, 333-01951, 033-60051, 033-58329 and 033-58321 on Form S-8 and No.
333-67985 on Form S-3 of AmeriSource Health Corporation, of our report dated
November 3, 1999, with respect to the consolidated financial statements and
schedules of AmeriSource Health Corporation and subsidiaries included in the
Annual Report (Form 10-K) for the fiscal year ended September 30, 1999.
Philadelphia, Pennsylvania
December 22, 1999
