SC 13D/A 1 c84297a6sc13dza.txt AMENDMENT TO SCHEDULE 13D SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 SCHEDULE 13D (RULE 13d-101) INFORMATION TO BE INCLUDED IN STATEMENTS FILED PURSUANT TO RULE 13D-1(a) AND AMENDMENTS THERETO FILED PURSUANT TO RULE 13D-2(a) (AMENDMENT NO. 6) ACM Government Opportunity Fund, Inc. -------------------------------------------------------------------------------- (Name of Issuer) Common Stock -------------------------------------------------------------------------------- (Title of Class of Securities) 000918 102 -------------------------------------------------------------------------------- (CUSIP Number) Michael A. Conway Aon Advisors, Inc. 200 East Randolph Drive Chicago, Illinois 60601 (312) 381-3000 -------------------------------------------------------------------------------- (Name, Address and Telephone Number of Person Authorized to Receive Notices and Communications) April 2, 2004 -------------------------------------------------------------------------------- (Date of Event which Requires Filing of this Statement) If the filing person has previously filed a statement on Schedule 13G to report the acquisition which is the subject of this Schedule 13D, and is filing this schedule because of Rule 13d-1(b)(3) or (4), check the following box / /. Note: Schedules filed in paper format shall include a signed original and five copies of the schedule, including all exhibits. See Rule 13d-7(b) for other parties to whom copies are to be sent. (Continued on following pages) CUSIP NO. 000918 102 SCHEDULE 13D -------------------------------------------------------------------------------- 1 NAME OF REPORTING PERSONS I.R.S. IDENTIFICATION NOS. OF ABOVE PERSONS (ENTITIES ONLY) AON CORPORATION 36-3051915 -------------------------------------------------------------------------------- 2 CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP (See Instructions) (a) / / (b) / / -------------------------------------------------------------------------------- 3 SEC USE ONLY -------------------------------------------------------------------------------- 4 SOURCE OF FUNDS (See Instructions) Not Applicable -------------------------------------------------------------------------------- 5 CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT TO ITEMS 2(d) or 2(e) / / -------------------------------------------------------------------------------- 6 CITIZENSHIP OR PLACE OF ORGANIZATION Delaware -------------------------------------------------------------------------------- NUMBER OF 7 SOLE VOTING POWER 0 SHARES ----------------------------------------------------- BENEFICIALLY 8 SHARED VOTING POWER 3,918,136 OWNED BY ----------------------------------------------------- EACH 9 SOLE DISPOSITIVE POWER 0 REPORTING ----------------------------------------------------- PERSON WITH 10 SHARED DISPOSITIVE POWER 3,918,136 -------------------------------------------------------------------------------- 11 AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON 3,918,136 -------------------------------------------------------------------------------- 12 CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN SHARES (See Instructions) / / -------------------------------------------------------------------------------- 13 PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11) 30.5% -------------------------------------------------------------------------------- 14 TYPE OF REPORTING PERSON (See Instructions) HC, CO -------------------------------------------------------------------------------- CUSIP NO. 000918 102 SCHEDULE 13D -------------------------------------------------------------------------------- 1 NAME OF REPORTING PERSONS I.R.S. IDENTIFICATION NOS. OF ABOVE PERSONS (ENTITIES ONLY) AON ADVISORS, INC. 54-1392321 -------------------------------------------------------------------------------- 2 CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP (See Instructions) (a) / / (b) / / -------------------------------------------------------------------------------- 3 SEC USE ONLY -------------------------------------------------------------------------------- 4 SOURCE OF FUNDS (See Instructions) Not Applicable -------------------------------------------------------------------------------- 5 CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT TO ITEMS 2(d) or 2(e) / / -------------------------------------------------------------------------------- 6 CITIZENSHIP OR PLACE OF ORGANIZATION Virginia -------------------------------------------------------------------------------- NUMBER OF 7 SOLE VOTING POWER 0 SHARES ----------------------------------------------------- BENEFICIALLY 8 SHARED VOTING POWER 3,918,136 OWNED BY ----------------------------------------------------- EACH 9 SOLE DISPOSITIVE POWER 0 REPORTING ----------------------------------------------------- PERSON WITH 10 SHARED DISPOSITIVE POWER 3,918,136 -------------------------------------------------------------------------------- 11 AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON 3,918,136 -------------------------------------------------------------------------------- 12 CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN SHARES (See Instructions) / / -------------------------------------------------------------------------------- 13 PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11) 30.5% -------------------------------------------------------------------------------- 14 TYPE OF REPORTING PERSON (See Instructions) IA, CO -------------------------------------------------------------------------------- CUSIP NO. 000918 102 SCHEDULE 13D -------------------------------------------------------------------------------- 1 NAME OF REPORTING PERSONS I.R.S. IDENTIFICATION NOS. OF ABOVE PERSONS (ENTITIES ONLY) COMBINED INSURANCE COMPANY OF AMERICA 36-2136262 -------------------------------------------------------------------------------- 2 CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP (See Instructions) (a) / / (b) / / -------------------------------------------------------------------------------- 3 SEC USE ONLY -------------------------------------------------------------------------------- 4 SOURCE OF FUNDS (See Instructions) WC -------------------------------------------------------------------------------- 5 CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT TO ITEMS 2(d) or 2(e) / / -------------------------------------------------------------------------------- 6 CITIZENSHIP OR PLACE OF ORGANIZATION Illinois -------------------------------------------------------------------------------- NUMBER OF 7 SOLE VOTING POWER 0 SHARES ----------------------------------------------------- BENEFICIALLY 8 SHARED VOTING POWER 3,918,136 OWNED BY ---------------------------------------------------- EACH 9 SOLE DISPOSITIVE POWER 0 REPORTING ----------------------------------------------------- PERSON WITH 10 SHARED DISPOSITIVE POWER 3,918,136 -------------------------------------------------------------------------------- 11 AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON 3,918,136 -------------------------------------------------------------------------------- 12 CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN SHARES (See Instructions) / / -------------------------------------------------------------------------------- 13 PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11) 30.5% -------------------------------------------------------------------------------- 14 TYPE OF REPORTING PERSON (See Instructions) IC, CO -------------------------------------------------------------------------------- CUSIP NO. 000918 102 This Amendment No. 6 (this "Amendment") amends and supplements the Schedule 13D filed with the Securities and Exchange Commission on December 10, 1999 (the "Schedule 13D") by Aon Corporation, a Delaware corporation ("Aon"), Aon Advisors, Inc., a Virginia corporation ("Aon Advisors"), Combined Insurance Company of America, an Illinois corporation ("CICA"), and Virginia Surety Company, an Illinois corporation ("VSC"), as previously amended. Aon, Aon Advisors and CICA are sometimes referred to herein as the "Filing Persons". The Schedule 13D as previously amended and this Amendment relate to the Common Stock (the "Common Stock") of ACM Government Opportunity Fund, Inc. (the "Issuer"). Capitalized terms used but not defined herein have the meanings ascribed to such terms in the Schedule 13D. Item 5 of the Schedule 13D as previously amended is hereby amended and restated in its entirety as follows: ITEM 5. INTEREST IN SECURITIES OF THE ISSUER See rows 7 through 11 and row 13 on pages 2 through 4. The Issuer's Quarterly Report dated April 1, 2004 states that, as of January 31, 2004, there were 12,864,505 shares of Common Stock outstanding. The percentage ownership of Aon, Aon Advisors and CICA was derived using this number of shares of Common Stock outstanding. Pursuant to an Investment Advisory Agreement between Aon Advisors and CICA, Aon Advisors is invested in, on behalf of and as investment adviser to CICA, 3,918,136 shares of Common Stock. Because Aon is the parent holding company to CICA, Aon indirectly beneficially owns all shares of Common Stock held by CICA. By reason of the purchases of Common Stock made on behalf of CICA, as of the date of this Amendment, Aon, Aon Advisors and CICA share the power to vote or direct the vote and the power to dispose or direct the disposition of 3,918,136 shares of Common Stock, or 30.5% of the total outstanding shares of Common Stock as of January 31, 2004. During the sixty day period preceding the date of this Amendment, none of the Filing Persons effected any transactions in any shares of Common Stock other than the following sales by Aon Advisors on behalf of CICA:
Date Number of Shares Price Per Share ($) ---- ---------------- ------------------- 02/05/04 3,200.00 9.1205 02/06/04 1,900.00 9.1875 02/09/04 1,900.00 9.1949 02/10/04 1,900.00 9.1580 02/11/04 1,900.00 9.1970 02/12/04 1,900.00 9.0770 02/13/04 1,900.00 9.0496
Date Number of Shares Price Per Share ($) ---- ---------------- ------------------- 02/17/04 3,800.00 9.1325 02/18/04 1,900.00 9.2164 02/19/04 1,900.00 9.1822 02/20/04 1,900.00 9.0701 02/23/04 1,900.00 9.0254 02/24/04 1,900.00 9.1364 02/25/04 1,900.00 9.0233 02/26/04 1,900.00 8.9996 03/01/04 1,900.00 9.1496 03/04/04 4,000.00 9.0756
Date Number of Shares Price Per Share ($) ---- ---------------- ------------------- 03/05/04 2,000.00 9.1646 03/08/04 2,000.00 9.1976 03/09/04 2,000.00 9.2246 03/10/04 2,000.00 9.1506 03/11/04 2,000.00 9.1771 03/12/04 2,000.00 9.1821 03/15/04 2,000.00 9.1936 03/16/04 2,000.00 9.2171 03/17/04 2,000.00 9.2216 03/18/04 2,000.00 9.2396
Date Number of Shares Price Per Share ($) ---- ---------------- ------------------- 03/19/04 2,000.00 9.2536 03/22/04 2,000.00 9.1376 03/23/04 2,000.00 9.1121 03/24/04 2,000.00 9.1266 03/25/04 2,000.00 9.1691 03/26/04 2,000.00 9.0241 03/29/04 2,000.00 9.0506 03/30/04 2,000.00 9.0836 03/31/04 2,000.00 9.0171 04/01/04 2,000.00 9.0286
Date Number of Shares Price Per Share ($) ---- ---------------- ------------------- 04/02/04 2,000.00 9.0346 ---------------- 79,600.00 ================
SIGNATURE After reasonable inquiry and to the best of its knowledge and belief, the undersigned certifies that the information set forth in this statement is true, complete and correct. AON CORPORATION Date: April 5, 2004 /s/ Michael A. Conway ------------------------ By: Michael A. Conway Senior Vice President and Senior Investment Officer AON ADVISORS, INC. Date: April 5, 2004 /s/ Michael A. Conway ------------------------ By: Michael A. Conway President COMBINED INSURANCE COMPANY OF AMERICA Date: April 5, 2004 /s/ Michael A. Conway ------------------------ By: Michael A. Conway Senior Vice President