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                                 UNITED STATES
                      SECURITIES AND EXCHANGE COMMISSION
                            Washington, D.C. 20549
                                 SCHEDULE 13D

      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. 2)1

                             Acxiom Corporation
                ------------------------------------------------
                                (Name of Issuer)

                Common Stock, Par Value $0.10 per share
                ------------------------------------------------
                         (Title of Class of Securities)

                                  005125109
                ------------------------------------------------
                                (CUSIP Number)

                             George F. Hamel, Jr.
                              ValueAct Capital
                        435 Pacific Avenue, Fourth Floor
                           San Francisco, CA 94133
                              (415) 362-3700
                ------------------------------------------------
               (Name, Address and Telephone Number of Person
              Authorized to Receive Notices and Communications)

                              November 30, 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 that is the subject of this Schedule 13D, and is
filing this schedule because of Rule 240.13d-1(b)(e), 240.13d-1(f) or
240.13d-1(g) 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 240.13d-7(b)
for other parties to whom copies are to be sent

1The remainder of this cover page shall be filled out for a reporting
person's initial filing on this form with respect to the subject class of
securities, and for any subsequent amendment containing information which
would alter disclosures provided in a prior cover page.

The information required on the remainder of this cover page shall not be
deemed to be "filed" for the purpose of Section 18 of the Securities Exchange
Act of 1934 ("Act") or otherwise subject to the liabilities of that section
of the Act but shall be subject to all other provisions of the Act (however,
see the Notes).
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SCHEDULE 13D - -------------------------- ------------------------- CUSIP NO. 005125109 Page 2 of 18 - ----------------------------------------------------------------------------- 1. NAME OF REPORTING PERSON/S.S. OR I.R.S. INDENTIFICATION NO. OF ABOVE PERSON (entities only) ValueAct Capital Partners, L.P. - ----------------------------------------------------------------------------- 2. CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP* (a) [ ] (b) [ ] - ----------------------------------------------------------------------------- 3. SEC USE ONLY - ----------------------------------------------------------------------------- 4. SOURCE OF FUNDS* N/A - ----------------------------------------------------------------------------- 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 - ----------------------------------------------------------------------------- 7. SOLE VOTING POWER 0 NUMBER OF ---------------------------------------------------------- SHARES 8. SHARED VOTING POWER BENEFICIALLY 0** OWNED BY EACH ---------------------------------------------------------- PERSON WITH 9. SOLE DISPOSITIVE POWER 0 ---------------------------------------------------------- 10. SHARED DISPOSITIVE POWER 0** - ----------------------------------------------------------------------------- 11. AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON 0** - ----------------------------------------------------------------------------- 12. CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN SHARES [ ] - ----------------------------------------------------------------------------- 13. PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11) 0% - ----------------------------------------------------------------------------- 14. TYPE OF REPORTING PERSON PN - ----------------------------------------------------------------------------- *See Item 3 **See Item 2 and 5 *SEE INSTRUCTIONS BEFORE FILLING OUT! INCLUDE BOTH SIDES OF THE COVER PAGE, RESPONSES TO ITEMS 1-7 (INCLUDING EXHIBITS) OF THE SCHEDULE, AND THE SIGNATURE ATTESTATION.

SCHEDULE 13D - -------------------------- ------------------------- CUSIP NO. 005125109 Page 3 of 18 - ----------------------------------------------------------------------------- 1. NAME OF REPORTING PERSON/S.S. OR I.R.S. INDENTIFICATION NO. OF ABOVE PERSON (entities only) ValueAct Capital Partners II, L.P. - --------------------------------------------------------------------------- 2. CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP* (a) [ ] (b) [ ] - ----------------------------------------------------------------------------- 3. SEC USE ONLY - ----------------------------------------------------------------------------- 4. SOURCE OF FUNDS* N/A - ----------------------------------------------------------------------------- 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 - ----------------------------------------------------------------------------- 7. SOLE VOTING POWER 0 NUMBER OF ---------------------------------------------------------- SHARES 8. SHARED VOTING POWER BENEFICIALLY 0** OWNED BY EACH ---------------------------------------------------------- PERSON WITH 9. SOLE DISPOSITIVE POWER 0 ---------------------------------------------------------- 10. SHARED DISPOSITIVE POWER 0** - ----------------------------------------------------------------------------- 11. AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON 0** - ----------------------------------------------------------------------------- 12. CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN SHARES [ ] - ----------------------------------------------------------------------------- 13. PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11) 0% - ----------------------------------------------------------------------------- 14. TYPE OF REPORTING PERSON PN - ----------------------------------------------------------------------------- *See Item 3 **See Item 2 and 5 *SEE INSTRUCTIONS BEFORE FILLING OUT! INCLUDE BOTH SIDES OF THE COVER PAGE, RESPONSES TO ITEMS 1-7 (INCLUDING EXHIBITS) OF THE SCHEDULE, AND THE SIGNATURE ATTESTATION.

SCHEDULE 13D - -------------------------- ------------------------- CUSIP NO. 005125109 Page 4 of 18 - ----------------------------------------------------------------------------- 1. NAME OF REPORTING PERSON/S.S. OR I.R.S. INDENTIFICATION NO. OF ABOVE PERSON (entities only) ValueAct Capital International, Ltd. - ----------------------------------------------------------------------------- 2. CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP* (a) [ ] (b) [ ] - ----------------------------------------------------------------------------- 3. SEC USE ONLY - ----------------------------------------------------------------------------- 4. SOURCE OF FUNDS* N/A - ----------------------------------------------------------------------------- 5. CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT TO ITEMS 2(d) or 2(e) [ ] - ----------------------------------------------------------------------------- 6. CITIZENSHIP OR PLACE OF ORGANIZATION British Virgin Islands - ----------------------------------------------------------------------------- 7. SOLE VOTING POWER 0 NUMBER OF ---------------------------------------------------------- SHARES 8. SHARED VOTING POWER BENEFICIALLY 0** OWNED BY EACH ---------------------------------------------------------- PERSON WITH 9. SOLE DISPOSITIVE POWER 0 ---------------------------------------------------------- 10. SHARED DISPOSITIVE POWER 0** - ----------------------------------------------------------------------------- 11. AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON 0** - ----------------------------------------------------------------------------- 12. CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN SHARES [ ] - ----------------------------------------------------------------------------- 13. PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11) 0% - ----------------------------------------------------------------------------- 14. TYPE OF REPORTING PERSON PN - ----------------------------------------------------------------------------- *See Item 3 **See Item 2 and 5 *SEE INSTRUCTIONS BEFORE FILLING OUT! INCLUDE BOTH SIDES OF THE COVER PAGE, RESPONSES TO ITEMS 1-7 (INCLUDING EXHIBITS) OF THE SCHEDULE, AND THE SIGNATURE ATTESTATION.

SCHEDULE 13D - -------------------------- ------------------------- CUSIP NO. 005125109 Page 5 of 18 - ----------------------------------------------------------------------------- 1. NAME OF REPORTING PERSON/S.S. OR I.R.S. INDENTIFICATION NO. OF ABOVE PERSON (entities only) ValueAct Capital Master Fund, L.P. - ----------------------------------------------------------------------------- 2. CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP* (a) [X] (b) [ ] - ----------------------------------------------------------------------------- 3. SEC USE ONLY - ----------------------------------------------------------------------------- 4. SOURCE OF FUNDS* N/A - ----------------------------------------------------------------------------- 5. CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT TO ITEMS 2(d) or 2(e) [ ] - ----------------------------------------------------------------------------- 6. CITIZENSHIP OR PLACE OF ORGANIZATION British Virgin Islands - ----------------------------------------------------------------------------- 7. SOLE VOTING POWER 4,243,672** NUMBER OF ---------------------------------------------------------- SHARES 8. SHARED VOTING POWER BENEFICIALLY 0** OWNED BY EACH ---------------------------------------------------------- PERSON WITH 9. SOLE DISPOSITIVE POWER 0 ---------------------------------------------------------- 10. SHARED DISPOSITIVE POWER 4,243,672** - ----------------------------------------------------------------------------- 11. AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON 4,243,672** - ----------------------------------------------------------------------------- 12. CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN SHARES [ ] - ----------------------------------------------------------------------------- 13. PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11) 4.9% - ----------------------------------------------------------------------------- 14. TYPE OF REPORTING PERSON PN - ----------------------------------------------------------------------------- *See Item 3 **See Item 2 and 5 *SEE INSTRUCTIONS BEFORE FILLING OUT! INCLUDE BOTH SIDES OF THE COVER PAGE, RESPONSES TO ITEMS 1-7 (INCLUDING EXHIBITS) OF THE SCHEDULE, AND THE SIGNATURE ATTESTATION.

SCHEDULE 13D - -------------------------- ------------------------- CUSIP NO. 005125109 Page 6 of 18 - ----------------------------------------------------------------------------- 1. NAME OF REPORTING PERSON/S.S. OR I.R.S. INDENTIFICATION NO. OF ABOVE PERSON (entities only) ValueAct Capital Partners Co-Investors, L.P. - ----------------------------------------------------------------------------- 2. CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP* (a) [X] (b) [ ] - ----------------------------------------------------------------------------- 3. SEC USE ONLY - ----------------------------------------------------------------------------- 4. SOURCE OF FUNDS* N/A - ----------------------------------------------------------------------------- 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 - ----------------------------------------------------------------------------- 7. SOLE VOTING POWER 0 NUMBER OF ---------------------------------------------------------- SHARES 8. SHARED VOTING POWER BENEFICIALLY 51,567** OWNED BY EACH ---------------------------------------------------------- PERSON WITH 9. SOLE DISPOSITIVE POWER 0 ---------------------------------------------------------- 10. SHARED DISPOSITIVE POWER 51,567** - ----------------------------------------------------------------------------- 11. AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON 51,567** - ----------------------------------------------------------------------------- 12. CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN SHARES [ ] - ----------------------------------------------------------------------------- 13. PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11) Less than 1% - ----------------------------------------------------------------------------- 14. TYPE OF REPORTING PERSON PN - ----------------------------------------------------------------------------- *See Item 3 **See Item 2 and 5 *SEE INSTRUCTIONS BEFORE FILLING OUT! INCLUDE BOTH SIDES OF THE COVER PAGE, RESPONSES TO ITEMS 1-7 (INCLUDING EXHIBITS) OF THE SCHEDULE, AND THE SIGNATURE ATTESTATION.

SCHEDULE 13D - -------------------------- ------------------------- CUSIP NO. 005125109 Page 7 of 18 - ---------------------------------------------------------------------------- 1. NAME OF REPORTING PERSON/S.S. OR I.R.S. INDENTIFICATION NO. OF ABOVE PERSON (entities only) VA Partners, L.L.C. - ----------------------------------------------------------------------------- 2. CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP* (a) [X] (b) [ ] - ----------------------------------------------------------------------------- 3. SEC USE ONLY - ----------------------------------------------------------------------------- 4. SOURCE OF FUNDS* N/A - ----------------------------------------------------------------------------- 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 - ----------------------------------------------------------------------------- 7. SOLE VOTING POWER 0 NUMBER OF ---------------------------------------------------------- SHARES 8. SHARED VOTING POWER BENEFICIALLY 4,295,239** OWNED BY EACH ---------------------------------------------------------- PERSON WITH 9. SOLE DISPOSITIVE POWER 0 ---------------------------------------------------------- 10. SHARED DISPOSITIVE POWER 4,295,239** - ----------------------------------------------------------------------------- 11. AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON 4,295,239** - ----------------------------------------------------------------------------- 12. CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN SHARES [ ] - ----------------------------------------------------------------------------- 13. PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11) 4.9% - ----------------------------------------------------------------------------- 14. TYPE OF REPORTING PERSON 00 (LLC) - ----------------------------------------------------------------------------- *See Item 3 **See Item 2 and 5 *SEE INSTRUCTIONS BEFORE FILLING OUT! INCLUDE BOTH SIDES OF THE COVER PAGE, RESPONSES TO ITEMS 1-7 (INCLUDING EXHIBITS) OF THE SCHEDULE, AND THE SIGNATURE ATTESTATION.

SCHEDULE 13D - -------------------------- ------------------------- CUSIP NO. 005125109 Page 8 of 18 - ----------------------------------------------------------------------------- 1. NAME OF REPORTING PERSON/S.S. OR I.R.S. INDENTIFICATION NO. OF ABOVE PERSON (entities only) Jeffrey W. Ubben - --------------------------------------------------------------------------- 2. CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP* (a) [X] (b) [ ] - ----------------------------------------------------------------------------- 3. SEC USE ONLY - --------------------------------------------------------------------------- 4. SOURCE OF FUNDS* 00* - ----------------------------------------------------------------------------- 5. CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT TO ITEMS 2(d) or 2(e) [ ] - ----------------------------------------------------------------------------- 6. CITIZENSHIP OR PLACE OF ORGANIZATION United States - ----------------------------------------------------------------------------- 7. SOLE VOTING POWER 0 NUMBER OF ---------------------------------------------------------- SHARES 8. SHARED VOTING POWER BENEFICIALLY 4,295,239** OWNED BY EACH ---------------------------------------------------------- PERSON WITH 9. SOLE DISPOSITIVE POWER 0 ---------------------------------------------------------- 10. SHARED DISPOSITIVE POWER 4,295,239** - ----------------------------------------------------------------------------- 11. AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON 4,295,239** - ----------------------------------------------------------------------------- 12. CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN SHARES [ ] - ----------------------------------------------------------------------------- 13. PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11) 4.9% - ----------------------------------------------------------------------------- 14. TYPE OF REPORTING PERSON IN - ----------------------------------------------------------------------------- *See Item 3 **See Item 2 and 5 *SEE INSTRUCTIONS BEFORE FILLING OUT! INCLUDE BOTH SIDES OF THE COVER PAGE, RESPONSES TO ITEMS 1-7 (INCLUDING EXHIBITS) OF THE SCHEDULE, AND THE SIGNATURE ATTESTATION.

SCHEDULE 13D - -------------------------- ------------------------- CUSIP NO. 005125109 Page 9 of 18 - ----------------------------------------------------------------------------- 1. NAME OF REPORTING PERSON/S.S. OR I.R.S. INDENTIFICATION NO. OF ABOVE PERSON (entities only) George F. Hamel, Jr. - --------------------------------------------------------------------------- 2. CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP* (a) [X] (b) [ ] - ----------------------------------------------------------------------------- 3. SEC USE ONLY - ----------------------------------------------------------------------------- 4. SOURCE OF FUNDS* 00* - ----------------------------------------------------------------------------- 5. CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT TO ITEMS 2(d) or 2(e) [ ] - ----------------------------------------------------------------------------- 6. CITIZENSHIP OR PLACE OF ORGANIZATION United States - ----------------------------------------------------------------------------- 7. SOLE VOTING POWER 0 NUMBER OF ---------------------------------------------------------- SHARES 8. SHARED VOTING POWER BENEFICIALLY 4,295,239** OWNED BY EACH ---------------------------------------------------------- PERSON WITH 9. SOLE DISPOSITIVE POWER 0 ---------------------------------------------------------- 10. SHARED DISPOSITIVE POWER 4,295,239** - ----------------------------------------------------------------------------- 11. AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON 4,295,239** - ----------------------------------------------------------------------------- 12. CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN SHARES [ ] - ----------------------------------------------------------------------------- 13. PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11) 4.9% - ----------------------------------------------------------------------------- 14. TYPE OF REPORTING PERSON IN - ----------------------------------------------------------------------------- *See Item 3 **See Item 2 and 5 *SEE INSTRUCTIONS BEFORE FILLING OUT! INCLUDE BOTH SIDES OF THE COVER PAGE, RESPONSES TO ITEMS 1-7 (INCLUDING EXHIBITS) OF THE SCHEDULE, AND THE SIGNATURE ATTESTATION.

SCHEDULE 13D - -------------------------- ------------------------- CUSIP NO. 005125109 Page 10 of 18 - ----------------------------------------------------------------------------- 1. NAME OF REPORTING PERSON/S.S. OR I.R.S. INDENTIFICATION NO. OF ABOVE PERSON (entities only) Peter H. Kamin - ----------------------------------------------------------------------------- 2. CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP* (a) [X] (b) [ ] - --------------------------------------------------------------------------- 3. SEC USE ONLY - ----------------------------------------------------------------------------- 4. SOURCE OF FUNDS* 00* - ----------------------------------------------------------------------------- 5. CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT TO ITEMS 2(d) or 2(e) [ ] - ----------------------------------------------------------------------------- 6. CITIZENSHIP OR PLACE OF ORGANIZATION United States - ----------------------------------------------------------------------------- 7. SOLE VOTING POWER 0 NUMBER OF ---------------------------------------------------------- SHARES 8. SHARED VOTING POWER BENEFICIALLY 4,295,239** OWNED BY EACH ---------------------------------------------------------- PERSON WITH 9. SOLE DISPOSITIVE POWER 0 ---------------------------------------------------------- 10. SHARED DISPOSITIVE POWER 4,295,239** - ----------------------------------------------------------------------------- 11. AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON 4,295,239** - ----------------------------------------------------------------------------- 12. CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN SHARES [ ] - ----------------------------------------------------------------------------- 13. PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11) 4.9% - ----------------------------------------------------------------------------- 14. TYPE OF REPORTING PERSON IN - ----------------------------------------------------------------------------- *See Item 3 **See Item 2 and 5 *SEE INSTRUCTIONS BEFORE FILLING OUT! INCLUDE BOTH SIDES OF THE COVER PAGE, RESPONSES TO ITEMS 1-7 (INCLUDING EXHIBITS) OF THE SCHEDULE, AND THE SIGNATURE ATTESTATION.

THE PURPOSE OF THIS AMENDMENT NO. 2 TO SCHEDULE 13D IS TO AMEND THE OWNERSHIP REPORTS OF THE REPORTING PERSONS. THE INFORMATION BELOW SUPPLEMENTS THE INFORMATION PREVIOUSLY PROVIDED. ITEM 1. SECURITY AND ISSUER. This Schedule 13D relates to the common stock, $0.10 par value per share (the "Common Stock"), of Acxiom Corporation, a Delaware corporation (the"Issuer). The address of the principal executive offices of the Issuer is P.O. Box 8180, 1 Information Way, Little Rock, Arkansas 72203. ITEM 2. IDENTITY AND BACKGROUND. This statement is filed jointly by (a) ValueAct Capital Partners, L.P. ("ValueAct Partners"), (b) ValueAct Capital Partners II, L.P. ("ValueAct Partners II"), (c) ValueAct Capital International, Ltd. ("ValueAct International"), (d) ValueAct Capital Master Fund, L.P. ("ValueAct Master Fund"), (e) ValueAct Capital Partners Co-Investors, L.P. (?ValueAct Co-Investors?), (f) VA Partners, L.L.C. ("VA Partners"), (g) Jeffrey W. Ubben, (h) George F. Hamel, Jr. and (i) Peter H. Kamin (collectively, the "Reporting Persons"). ValueAct Partners, ValueAct Partners II and ValueAct Co-Investors are each Delaware limited partnerships. ValueAct International is a Company organized under the laws of the British Virgin Islands. ValueAct Master Fund is a limited partnership organized under the laws of the British Virgin Islands. Each has a principal business address of 435 Pacific Avenue, Fourth Floor, San Francisco, CA 94133. VA Partners is a Delaware limited liability company, the principal business of which is to render investment management services to ValueAct International and to serve as the General Partner to ValueAct Partners, ValueAct Partners II, ValueAct Master Fund and ValueAct Co-Investors. VA Partners has a principal business address of 435 Pacific Avenue, Fourth Floor, San Francisco, CA 94133. (a), (b) and (c). Messrs. Ubben, Hamel and Kamin are each managing members, principal owners and controlling persons of VA Partners, and directors and principal executive officers of ValueAct International, and such activities constitute their principal occupations. Such individuals are sometimes collectively referred to herein as the ?Managing Members? or individually as a ?Managing Member?. Each Managing Member is a United States citizen and has a principal business address of 435 Pacific Avenue, Fourth Floor, San Francisco, CA 94133. (d) and (e). None of the entities or persons identified in this Item 2 has during the past five years been convicted of any criminal proceeding (excluding traffic violations or similar misdemeanors), nor been a party to a civil proceeding of a judicial or administrative body of competent judgment, decree or final order enjoining future violations of, or prohibiting or mandating activities subject to, federal or state securities laws or finding any violation with respect to such laws. Page 11 of 18

ITEM 3. SOURCE AND AMOUNT OF FUNDS OR OTHER CONSIDERATION. Not applicable in that transaction involved the sale of and not the acquisition of securities. ITEM 5. INTEREST IN SECURITIES OF THE ISSUER (a) and (b). Set forth below is the beneficial ownership of shares of Common Stock of the Issuer for each person named in Item 2. At the date of this filing, ValueAct Partners, ValueAct Partners II and ValueAct International have contributed all of their assets (including the beneficial ownership of shares of Common Stock of the Issuer) to ValueAct Master Fund in exchange for proportional limited partnership interests in ValueAct Master Fund. Shares reported as beneficially owned by ValueAct Partners, ValueAct Partners II, ValueAct International, ValueAct Master Fund and Valueact Co-Investors are also reported as beneficially owned by VA Partners, as investment manager or General Partner of each such investment partnership, and by the Managing Members as controlling persons of the General Partner. VA Partners and the Managing Members also, directly or indirectly, may own interests in one or both of such partnerships from time to time. Unless otherwise indicated below, by reason of such relationships each of the partnerships is reported as having shared power to vote or to direct the vote, and shared power to dispose or direct the disposition of, such shares of Common Stock with VA Partners and the Managing Members. As of the date hereof, ValueAct Partners is the beneficial owner of 0 shares of Common Stock. ValueAct Partners II is the beneficial owner of 0 shares of Common Stock. ValueAct International is the beneficial owner of 0 shares of Common Stock. ValueAct Master Fund is the beneficial owner of 4,243,672 shares of Common Stock, representing approximately 4.9% of the Issuers outstanding Common Stock. ValueAct Co-Investors is the beneficial owner of 51,567 shares of Common Stock representing less than 1% of the Issuers outstanding Common Stock. VA Partners and each of the Managing Members may be deemed the beneficial owner of an aggregate of 4,295,239 shares of Issuer Common stock, representing approximately 4.9% of the Issuers outstanding Common Stock. All percentages set forth in this Schedule 13D are based upon the Issuer's reported 86,287,525 outstanding shares of Common Stock as reported in the Issuer's Form 10-Q for the period ended September 30, 2004. (c)During the sixty (60) days preceding the date of this report, the Reporting Persons sold the following shares of Common Stock in the open market. Reporting Person Trade Date Shares Price/Share - ---------- --------- ------- ----------- ValueAct Master 11-03-04 7,388 $26.28 11-08-04 29,550 $26.11 11-08-04 68,950 $26.10 11-08-04 98,500 $26.13 Page 12 of 18

11-09-04 492,500 $26.11 11-10-04 98,500 $26.09 11-10-04 98,500 $26.03 11-10-04 49,250 $26.01 11-10-04 98,500 $26.04 11-11-04 98,500 $26.25 11-11-04 98,500 $26.12 11-11-04 49,250 $26.32 11-12-04 49,250 $26.36 11-12-04 49,250 $26.40 11-12-04 49,250 $26.32 11-29-04 30,000 $25.91 11-30-04 7,177 $25.87 11-30-04 24,625 $25.88 12-01-04 50,000 $25.87 12-01-04 50,000 $25.90 12-01-04 100,000 $25.93 12-01-04 50,000 $25.90 ValueAct Co-Investors 11-03-04 112 $26.28 11-08-04 1,500 $26.13 11-08-04 1,050 $26.10 11-08-04 450 $26.11 11-09-04 7,500 $26.11 11-10-04 1,500 $26.03 11-10-04 1,500 $26.04 11-10-04 1,500 $26.09 11-10-04 750 $26.01 11-11-04 1,500 $26.12 11-11-04 1,500 $26.25 11-11-04 750 $26.32 11-12-04 750 $26.36 11-12-04 750 $26.32 11-12-04 750 $26.40 11-30-04 375 $25.88 11-30-04 109 $25.87 (d) Not applicable. (e) As of December 1, 2004 the Reporting Persons ceased to be the beneficial owners, in the aggregate, of more than five percent of Issuer Common Stock, and accordingly, their obligation to file a Schedule 13D has been terminated. Page 13 of 18

ITEM 6. CONTRACTS, ARRANGEMENTS, UNDERSTANDINGS OR RELATIONSHIPS WITH RESPECT TO SECURITIES OF THE ISSUER Other than as described elsewhere in this Report, the Reporting Persons have no understandings, arrangements, relationships or contracts relating to the Common Stock which are required to be described hereunder. ITEM 7. MATERIAL TO BE FILED AS EXHIBITS A. Joint Filing Agreement Page 14 of 18

SIGNATURES After reasonable inquiry and to the best of my knowledge and belief, I certify that the information set forth in this statement is true, complete and correct. POWER OF ATTORNEY KNOW ALL PERSONS BY THESE PRESENTS, that each person whose signature appears below on this Schedule 13D hereby constitutes and appoints Jeffrey W. Ubben, George F. Hamel, Jr. and Peter H. Kamin, and each of them, with full power to act without the other, his true and lawful attorney-in-fact and agent, with full power of substitution and resubstitution, for him and in his name, place and stead, in any and all capacities (until revoked in writing) to sign any and all amendments to this Schedule 13D, and to file the same, with all exhibits thereto and other documents in connection therewith, with the Securities and Exchange Commission, granting unto said attorneys-in-fact and agents, and each of them, full power and authority to do and perform each and every act and thing requisite and necessary fully to all intents and purposes as he might or could do in person, thereby ratifying and confirming all that said attorneys-in-fact and agents or any of them, or their or his substitute or substitutes, may lawfully do or cause to be done by virtue hereof. ValueAct Capital Partners L.P., by VA Partners, L.L.C., its General Partner By: /s/ George F. Hamel, Jr. -------------------------------------- Dated: December 7, 2004 George F. Hamel, Jr., Managing Member ValueAct Capital Partners II L.P., by VA Partners, L.L.C., its General Partner By: /s/ George F. Hamel, Jr. -------------------------------------- Dated: December 7, 2004 George F. Hamel, Jr., Managing Member ValueAct Capital International, Ltd., by VA Partners, L.L.C., its investment manager By: /s/ George F. Hamel, Jr. -------------------------------------- Dated: December 7, 2004 George F. Hamel, Jr., Managing Member Page 15 of 18

ValueAct Capital Master Fund L.P., by VA Partners, L.L.C., its General Partner By: /s/ George F. Hamel, Jr. -------------------------------------- Dated: December 7, 2004 George F. Hamel, Jr., Managing Member ValueAct Capital Partners Co-Investors L.P., by VA Partners, L.L.C., its General Partner By: /s/ George F. Hamel, Jr. -------------------------------------- Dated: December 7, 2004 George F. Hamel, Jr., Managing Member VA Partners, L.L.C. By: /s/ George F. Hamel, Jr. -------------------------------------- Dated: December 7, 2004 George F. Hamel, Jr., Managing Member By: /s/ Jeffrey W. Ubben -------------------------------------- Dated: December 7, 2004 Jeffrey W. Ubben, Managing Member By: /s/ George F. Hamel, Jr. -------------------------------------- Dated: December 7, 2004 George F. Hamel, Jr., Managing Member By: /s/ Peter H. Kamin -------------------------------------- Dated: December 7, 2004 Peter H. Kamin, Managing Member Page 16 of 18

Exhibit A JOINT FILING UNDERTAKING The undersigned parties hereby agree that the Schedule 13D filed herewith (and any amendments thereto) relating to the Common Stock of Acxiom Corporation is being filed jointly on behalf of each of them with the Securities and Exchange Commission pursuant to Section 13(d) of the Securities Exchange Act of 1934, as amended. ValueAct Capital Partners L.P., by VA Partners, L.L.C., its General Partner By: /s/ George F. Hamel, Jr. -------------------------------------- Dated: December 7, 2004 George F. Hamel, Jr., Managing Member ValueAct Capital Partners II L.P., by VA Partners, L.L.C., its General Partner By: /s/ George F. Hamel, Jr. -------------------------------------- Dated: December 7, 2004 George F. Hamel, Jr., Managing Member ValueAct Capital International, Ltd., by VA Partners, L.L.C., its investment manager By: /s/ George F. Hamel, Jr. -------------------------------------- Dated: December 7, 2004 George F. Hamel, Jr., Managing Member ValueAct Capital Master Fund L.P., by VA Partners, L.L.C., its General Partner By: /s/ George F. Hamel, Jr. -------------------------------------- Dated: December 7, 2004 George F. Hamel, Jr., Managing Member ValueAct Capital Partners Co-Investors L.P., by VA Partners, L.L.C., its General Partner By: /s/ George F. Hamel, Jr. -------------------------------------- Dated: December 7, 2004 George F. Hamel, Jr., Managing Member Page 17 of 18

VA Partners, L.L.C. By: /s/ George F. Hamel, Jr. -------------------------------------- Dated: December 7, 2004 George F. Hamel, Jr., Managing Member By: /s/ Jeffrey W. Ubben -------------------------------------- Dated: December 7, 2004 Jeffrey W. Ubben, Managing Member By: /s/ George F. Hamel, Jr. -------------------------------------- Dated: December 7, 2004 George F. Hamel, Jr., Managing Member By: /s/ Peter H. Kamin -------------------------------------- Dated: December 7, 2004 Peter H. Kamin, Managing Member Page 18 of 18