-----BEGIN PRIVACY-ENHANCED MESSAGE----- Proc-Type: 2001,MIC-CLEAR Originator-Name: webmaster@www.sec.gov Originator-Key-Asymmetric: MFgwCgYEVQgBAQICAf8DSgAwRwJAW2sNKK9AVtBzYZmr6aGjlWyK3XmZv3dTINen TWSM7vrzLADbmYQaionwg5sDW3P6oaM5D3tdezXMm7z1T+B+twIDAQAB MIC-Info: RSA-MD5,RSA, C51P9BlzDkSke2aYy2B0a8wom+8LfPRHuQStKgrV12wTlbc2syI02xwB3k8fqARw QBUjxrVgx6UElUqIr79bPQ== 0001129787-04-000018.txt : 20040218 0001129787-04-000018.hdr.sgml : 20040218 20040218170046 ACCESSION NUMBER: 0001129787-04-000018 CONFORMED SUBMISSION TYPE: SC 13D/A PUBLIC DOCUMENT COUNT: 1 FILED AS OF DATE: 20040218 SUBJECT COMPANY: COMPANY DATA: COMPANY CONFORMED NAME: ONESOURCE INFORMATION SERVICES INC CENTRAL INDEX KEY: 0001079880 STANDARD INDUSTRIAL CLASSIFICATION: SERVICES-COMPUTER PROCESSING & DATA PREPARATION [7374] IRS NUMBER: 043204522 STATE OF INCORPORATION: DE FISCAL YEAR END: 1231 FILING VALUES: FORM TYPE: SC 13D/A SEC ACT: 1934 Act SEC FILE NUMBER: 005-57795 FILM NUMBER: 04613775 BUSINESS ADDRESS: STREET 1: 300 BAKER AVENUE CITY: CONCORD STATE: MA ZIP: 01742 BUSINESS PHONE: 9783184300 MAIL ADDRESS: STREET 1: 300 BAKER AVE CITY: CONCORD STATE: MA ZIP: 01742 FILED BY: COMPANY DATA: COMPANY CONFORMED NAME: VA PARTNERS LLC CENTRAL INDEX KEY: 0001129787 IRS NUMBER: 943364923 STATE OF INCORPORATION: DE FISCAL YEAR END: 1231 FILING VALUES: FORM TYPE: SC 13D/A BUSINESS ADDRESS: STREET 1: ONE MARITIME PLAZA STREET 2: STE 1400 CITY: SAN FRANCISCO STATE: CA ZIP: 94111 BUSINESS PHONE: 4153623700 MAIL ADDRESS: STREET 1: ONE MARITIME PLAZA STREET 2: STE 1400 CITY: SAN FRANCISCO STATE: CA ZIP: 94111 SC 13D/A 1 ones13da7021804.txt =============================================================================== 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. 7)* ONESOURCE INFORMATION SERVICES INC. ------------------------------------------------ (Name of Issuer) Common Stock, Par Value $0.01 per share ------------------------------------------------ (Title of Class of Securities) 68272J106 ------------------------------------------------ (CUSIP Number) George F. Hamel, Jr. ValueAct Capital One Maritime Plaza, Suite 1400 San Francisco, CA 94111 (415) 362-3700 ------------------------------------------------ (Name, Address and Telephone Number of Person Authorized to Receive Notices and Communications) With a Copy to: Christopher G. Karras, Esq. Dechert LLP 4000 Bell Atlantic Tower 1717 Arch Street Philadelphia, Pennsylvania 19103-2793 February 18, 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(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 for other parties to whom copies are to be sent. *The 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). =============================================================================== SCHEDULE 13D - -------------------------- -------------------------- CUSIP NO. 68272J106 Page 2 of 12 - ------------------------------------------------------------------------------ 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) [X] (b) [ ] - ------------------------------------------------------------------------------ 3. SEC USE ONLY - ------------------------------------------------------------------------------ 4. SOURCE OF FUNDS* 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 Delaware - ------------------------------------------------------------------------------ 7. SOLE VOTING POWER 0 NUMBER OF ----------------------------------------------------------- SHARES 8. SHARED VOTING POWER BENEFICIALLY 2,971,589** OWNED BY EACH ----------------------------------------------------------- PERSON WITH 9. SOLE DISPOSITIVE POWER 0 ----------------------------------------------------------- 10. SHARED DISPOSITIVE POWER 2,971,589** - ------------------------------------------------------------------------------ 11. AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON 2,971,589** - ------------------------------------------------------------------------------ 12. CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN SHARES [ ] - ------------------------------------------------------------------------------ 13. PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11) 25.54% - ------------------------------------------------------------------------------ 14. TYPE OF REPORTING PERSON PN - ------------------------------------------------------------------------------ *See Item 3 **See Items 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. 68272J106 Page 3 of 12 - ------------------------------------------------------------------------------ 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) [X] (b) [ ] - ------------------------------------------------------------------------------ 3. SEC USE ONLY - ------------------------------------------------------------------------------ 4. SOURCE OF FUNDS* 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 Delaware - ------------------------------------------------------------------------------ 7. SOLE VOTING POWER 0 NUMBER OF ----------------------------------------------------------- SHARES 8. SHARED VOTING POWER BENEFICIALLY 289,840** OWNED BY EACH ----------------------------------------------------------- PERSON WITH 9. SOLE DISPOSITIVE POWER 0 ----------------------------------------------------------- 10. SHARED DISPOSITIVE POWER 289,840** - ------------------------------------------------------------------------------ 11. AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON 289,840** - ------------------------------------------------------------------------------ 12. CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN SHARES [ ] - ------------------------------------------------------------------------------ 13. PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11) 2.49% - ------------------------------------------------------------------------------ 14. TYPE OF REPORTING PERSON PN - ------------------------------------------------------------------------------ *See Item 3 **See Items 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. 68272J106 Page 4 of 12 - ------------------------------------------------------------------------------ 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) [X] (b) [ ] - ------------------------------------------------------------------------------ 3. SEC USE ONLY - ------------------------------------------------------------------------------ 4. SOURCE OF FUNDS* 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 British Virgin Islands - ------------------------------------------------------------------------------ 7. SOLE VOTING POWER 0 NUMBER OF ----------------------------------------------------------- SHARES 8. SHARED VOTING POWER BENEFICIALLY 446,268** OWNED BY EACH ----------------------------------------------------------- PERSON WITH 9. SOLE DISPOSITIVE POWER 0 ----------------------------------------------------------- 10. SHARED DISPOSITIVE POWER 446,268** - ------------------------------------------------------------------------------ 11. AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON 446,268** - ------------------------------------------------------------------------------ 12. CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN SHARES [ ] - ------------------------------------------------------------------------------ 13. PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11) 3.84% - ------------------------------------------------------------------------------ 14. TYPE OF REPORTING PERSON PN - ------------------------------------------------------------------------------ *See Item 3 **See Items 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. 68272J106 Page 5 of 12 - ------------------------------------------------------------------------------ 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* 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 Delaware - ------------------------------------------------------------------------------ 7. SOLE VOTING POWER 0 NUMBER OF ----------------------------------------------------------- SHARES 8. SHARED VOTING POWER BENEFICIALLY 3,707,697** OWNED BY EACH ----------------------------------------------------------- PERSON WITH 9. SOLE DISPOSITIVE POWER 0 ----------------------------------------------------------- 10. SHARED DISPOSITIVE POWER 3,707,697** - ------------------------------------------------------------------------------ 11. AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON 3,707,697** - ------------------------------------------------------------------------------ 12. CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN SHARES [ ] - ------------------------------------------------------------------------------ 13. PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11) 31.87% - ------------------------------------------------------------------------------ 14. TYPE OF REPORTING PERSON 00 (LLC) - ------------------------------------------------------------------------------ *See Item 3 **See Items 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. 68272J106 Page 6 of 12 - ------------------------------------------------------------------------------ 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* 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 United States - ------------------------------------------------------------------------------ 7. SOLE VOTING POWER 0 NUMBER OF ----------------------------------------------------------- SHARES 8. SHARED VOTING POWER BENEFICIALLY 3,707,697** OWNED BY EACH ----------------------------------------------------------- PERSON WITH 9. SOLE DISPOSITIVE POWER 0 ----------------------------------------------------------- 10. SHARED DISPOSITIVE POWER 3,707,697** - ------------------------------------------------------------------------------ 11. AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON 3,707,697** - ------------------------------------------------------------------------------ 12. CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN SHARES [ ] - ------------------------------------------------------------------------------ 13. PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11) 31.87% - ------------------------------------------------------------------------------ 14. TYPE OF REPORTING PERSON IN - ------------------------------------------------------------------------------ *See Item 3 **See Items 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. 68272J106 Page 7 of 12 - ------------------------------------------------------------------------------ 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* 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 United States - ------------------------------------------------------------------------------ 7. SOLE VOTING POWER 0 NUMBER OF ----------------------------------------------------------- SHARES 8. SHARED VOTING POWER BENEFICIALLY 3,707,697** OWNED BY EACH ----------------------------------------------------------- PERSON WITH 9. SOLE DISPOSITIVE POWER 0 ----------------------------------------------------------- 10. SHARED DISPOSITIVE POWER 3,707,697** - ------------------------------------------------------------------------------ 11. AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON 3,707,697** - ------------------------------------------------------------------------------ 12. CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN SHARES [ ] - ------------------------------------------------------------------------------ 13. PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11) 31.87% - ------------------------------------------------------------------------------ 14. TYPE OF REPORTING PERSON IN - ------------------------------------------------------------------------------ *See Item 3 **See Items 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. 68272J106 Page 8 of 12 - ------------------------------------------------------------------------------ 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* 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 United States - ------------------------------------------------------------------------------ 7. SOLE VOTING POWER 0 NUMBER OF ----------------------------------------------------------- SHARES 8. SHARED VOTING POWER BENEFICIALLY 3,707,697** OWNED BY EACH ----------------------------------------------------------- PERSON WITH 9. SOLE DISPOSITIVE POWER 0 ----------------------------------------------------------- 10. SHARED DISPOSITIVE POWER 3,707,697** - ------------------------------------------------------------------------------ 11. AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON 3,707,697** - ------------------------------------------------------------------------------ 12. CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN SHARES [ ] - ------------------------------------------------------------------------------ 13. PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11) 31.87% - ------------------------------------------------------------------------------ 14. TYPE OF REPORTING PERSON IN - ------------------------------------------------------------------------------ *See Item 3 **See Items 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 THE PURPOSE OF THIS AMENDMENT NO. 7 TO SCHEDULE 13D IS TO AMEND THE SOURCE AND AMOUNT OF FUNDS OR OTHER CONSIDERATION AND PURPOSE OF TRANSACTION SECTIONS OF REPORTS FILED BY THE REPORTING PERSONS. THE INFORMATION BELOW SUPPLEMENTS THE INFORMATION PREVIOUSLY REPORTED. ITEM 3. SOURCE AND AMOUNT OF FUNDS OR OTHER CONSIDERATION. On February 18, 2004, VAC-OS Holdings LLC ("Parent"), OS Merger Sub, Inc. ("Merger Sub") and OneSource Information Services, Inc. (the "Issuer") entered into an Agreement and Plan of Merger (the "Merger Agreement"). VA Partners, L.L.C., the general partner of ValueAct Capital Partners, L.P. and ValueAct Capital Partners II, L.P. and the investment manager of ValueAct Capital International, Ltd., formed the Parent and Merger Sub for the purpose of Entering into the Merger Agreement with the Issuer. Pursuant to the Merger Agreement, Merger Sub will merge with and into the Issuer (the "Merger"), with the Issuer continuing as the surviving corporation in the Merger (the "Surviving Corporation") as an indirect, wholly-owned subsidiary of the Reporting Persons. In the Merger, each share of common stock of the Issuer outstanding at the time of the Merger (other than shares held by the Reporting Persons and the Issuer), will be converted into the right to receive $8.40 per share in cash, without interest (the "Merger Consideration"). The Reporting Persons currently expect that the aggregate amount of the Merger Consideration will come from cash currently on hand. The Merger is subject to certain conditions. The description of the Merger Agreement contained herein is qualified in its entirety by reference to the Merger Agreement, which is attached as Exhibit B hereto and hereby incorporated by reference herein. ITEM 4. PURPOSE OF TRANSACTION. (a)-(b) Other than as a result of the Merger described in Item 3 above, not applicable. (c) Not applicable. (d) Upon consummation of the Merger, the directors of the Surviving Corporation shall be the existing directors of Merger Sub, until their resignation or removal or until their successors are duly elected and qualified. The existing directors of Merger Sub are Peter H. Kamin, Jeffrey W. Ubben, George F. Hamel, Jr. and Todd Bourell. The officers of the Surviving Corporation shall be the existing officers of Merger Sub, until their resignation or removal or until their respective successors are duly elected and qualified. (e) Other than as a result of the Merger described in Item 3 above, not applicable. (f) Not applicable. (g) Upon consummation of the Merger, the Certificate of Incorporation and Bylaws of the Company shall become the Certificate of Incorporation and Bylaws of the Surviving Corporation until thereafter changed or amended. (h)-(i) Upon consummation of the Merger, the common stock of the Issuer will be delisted from The NASDAQ Stock Market Inc. and will become eligible for termination of registration pursuant to Section 12(g)(4) of the Exchange Act. (j) Other than as described above, the Reporting Persons currently have no plans or proposals which relate to, or may result in, any of the matters listed in Items 4(a)-(i) above (although the Reporting Persons reserve the right to develop such plans). PAGE 9 OF 12 ITEM 7. MATERIAL TO BE FILED AS EXHIBITS. A) Joint Filing Agreement (B) Agreement and Plan of Merger by and among VAC-OS Holdings LLC, OS Merger Sub, Inc. and the Issuer* *Incorporated by reference to Exhibit 2.1 to the Form 8-K filed by Issuer on the date hereof. SIGNATURES After reasonable inquiry and to the best of my knowledge and belief, the undersigned 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 who 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 or its true and lawful attorney-in-fact and agent, with full power of substitution and resubstitution, for him or it and in his or its 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 or it might or could do in person, thereby ratifying and confirming all that said attorneys-in-fact and agents or any of the, 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: February 18, 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: February 18, 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: February 18, 2004 George F. Hamel, Jr., Managing Member PAGE 10 OF 12 VA Partners, L.L.C. By: /s/ George F. Hamel, Jr. -------------------------------------- Dated: February 18, 2004 George F. Hamel, Jr., Managing Member By: /s/ Jeffrey W. Ubben -------------------------------------- Dated: February 18, 2004 Jeffrey W. Ubben By: /s/ George F. Hamel, Jr. -------------------------------------- Dated: February 18, 2004 George F. Hamel, Jr. By: /s/ Peter H. Kamin -------------------------------------- Dated: February 18, 2004 Peter H. Kamin PAGE 11 OF 12 Exhibit A JOINT FILING AGREEMENT The undersigned parties hereby agree that the Schedule 13D filed herewith (and any amendments thereto) relating to the Common Stock of OneSource Information Services, Inc. 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: February 18, 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: February 18, 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: February 18, 2004 George F. Hamel, Jr., Managing Member VA Partners, L.L.C. By: /s/ George F. Hamel, Jr. -------------------------------------- Dated: February 18, 2004 George F. Hamel, Jr., Managing Member By: /s/ Jeffrey W. Ubben -------------------------------------- Dated: February 18, 2004 Jeffrey W. Ubben By: /s/ George F. Hamel, Jr. -------------------------------------- Dated: February 18, 2004 George F. Hamel, Jr. By: /s/ Peter H. Kamin -------------------------------------- Dated: February 18, 2004 Peter H. Kamin PAGE 12 OF 12 -----END PRIVACY-ENHANCED MESSAGE-----