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

                                 SCHEDULE 13D

                               Amendment No. 6

                   Under the Securities Exchange Act of 1934*


                             Gartner Group, Inc.
                ------------------------------------------------
                                (Name of Issuer)

                Class B Common Stock, Par Value $0.0005 per share
                ------------------------------------------------
                         (Title of Class of Securities)

                                  366651206
                ------------------------------------------------
                                (CUSIP Number)

                             George F. Hamel, Jr.
                          ValueAct Capital Partners
                        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)

                              January 24, 2003
                ------------------------------------------------
           (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

*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. 366651206                                              Page 2 of 15
-----------------------------------------------------------------------------
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         2,907,887**
   OWNED BY EACH   ----------------------------------------------------------
   PERSON WITH      9.  SOLE DISPOSITIVE POWER
                        0
                   ----------------------------------------------------------
                    10.  SHARED DISPOSITIVE POWER
                        2,907,887**
-----------------------------------------------------------------------------
11. AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON

    2,907,887**
-----------------------------------------------------------------------------
12. CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES
    CERTAIN SHARES                                                        [ ]
-----------------------------------------------------------------------------
13. PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)

    9.63%
-----------------------------------------------------------------------------
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. 366651206                                              Page 3 of 15
-----------------------------------------------------------------------------
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         220,638**
   OWNED BY EACH   ----------------------------------------------------------
   PERSON WITH      9.  SOLE DISPOSITIVE POWER
                        0
                   ----------------------------------------------------------
                   10.  SHARED DISPOSITIVE POWER
                        220,638**
-----------------------------------------------------------------------------
11. AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON

    220,638**
-----------------------------------------------------------------------------
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. 366651206                                              Page 4 of 15
-----------------------------------------------------------------------------
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         1,128,321**
   OWNED BY EACH   ----------------------------------------------------------
   PERSON WITH      9.  SOLE DISPOSITIVE POWER
                        0
                   ----------------------------------------------------------
                   10.  SHARED DISPOSITIVE POWER
                        1,128,321**
-----------------------------------------------------------------------------
11. AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON

    1,128,321**
-----------------------------------------------------------------------------
12. CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES
    CERTAIN SHARES                                                        [ ]
-----------------------------------------------------------------------------
13. PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)

    3.74%
-----------------------------------------------------------------------------
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. 366651206                                              Page 5 of 15
----------------------------------------------------------------------------
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         4,256,846**
   OWNED BY EACH   ----------------------------------------------------------
   PERSON WITH      9.  SOLE DISPOSITIVE POWER
                        0
                   ----------------------------------------------------------
                   10.  SHARED DISPOSITIVE POWER
                        4,256,846**
-----------------------------------------------------------------------------
11. AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON

    4,256,846**
-----------------------------------------------------------------------------
12. CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES
    CERTAIN SHARES                                                        [ ]
-----------------------------------------------------------------------------
13. PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)

    14.10%
-----------------------------------------------------------------------------
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. 366651206                                            Page 6 of 15
-----------------------------------------------------------------------------
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         4,256,846**
   OWNED BY EACH   ----------------------------------------------------------
   PERSON WITH      9.  SOLE DISPOSITIVE POWER
                        0
                   ----------------------------------------------------------
                   10.  SHARED DISPOSITIVE POWER
                        4,256,846**
-----------------------------------------------------------------------------
11. AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON

    4,256,846**
-----------------------------------------------------------------------------
12. CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES
    CERTAIN SHARES                                                        [ ]
-----------------------------------------------------------------------------
13. PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)

    14.10%
-----------------------------------------------------------------------------
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. 366651206                                              Page 7 of 15
-----------------------------------------------------------------------------
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         4,256,846**
   OWNED BY EACH   ----------------------------------------------------------
   PERSON WITH     9.  SOLE DISPOSITIVE POWER
                        0
                   ----------------------------------------------------------
                   10.  SHARED DISPOSITIVE POWER
                        4,256,846**
-----------------------------------------------------------------------------
11. AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON

    4,256,846**
-----------------------------------------------------------------------------
12. CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES
    CERTAIN SHARES                                                        [ ]
-----------------------------------------------------------------------------
13. PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)

    14.10%
-----------------------------------------------------------------------------
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. 366651206                                              Page 8 of 15
-----------------------------------------------------------------------------
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         4,256,846**
   OWNED BY EACH   ----------------------------------------------------------
   PERSON WITH      9.  SOLE DISPOSITIVE POWER
                        0
                   ----------------------------------------------------------
                   10.  SHARED DISPOSITIVE POWER
                        4,256,846**
-----------------------------------------------------------------------------
11. AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON

    4,256,846**
-----------------------------------------------------------------------------
12. CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES
    CERTAIN SHARES                                                        [ ]
-----------------------------------------------------------------------------
13. PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)

    14.10%
-----------------------------------------------------------------------------
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. 6 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 Class B common stock, $0.0005 par
value per share(the "Common Stock"), of Gartner Group, Inc., a Delaware
corporation (the"Issuer).  The address of the principal  executive offices of
the Issuer is 56 Top Gallant Road, Stamford, Connecticut 06904-2212.

ITEM 2.  IDENTITY AND BACKGROUND.

         (a), (b), (c) and (f).  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) VA Partners, L.L.C. ("VA
Partners"), (e) Jeffrey W. Ubben, (f) George F. Hamel, Jr. and (g) Peter H.
Kamin (collectively, the "Reporting Persons").

         ValueAct Partners and ValueAct Partners II are each Delaware limited
partnerships, the principal business of which is investing in securities.
ValueAct International is a Company organized in the British Virgin Islands.
The principal business of each entity is investing in securities.  Each has a
principal business address of One Maritime Plaza, Suite 1400, San Francisco,
California 94111.

         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 of ValueAct Partners and
ValueAct Partners II. VA Partners has a principal business address of One
Maritime Plaza, Suite 1400, San Francisco, California 94111.

         (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 One Maritime Plaza, Suite
1400, San Francisco, California 94111.

         (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
jurisdiction and as a result of such proceeding was or is subject to a
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 9 of 15



ITEM 3.  SOURCE AND AMOUNT OF FUNDS OR OTHER CONSIDERATION.

         The source of funds used for the purchase of the Issuer's securities
was the working capital of ValueAct International. The aggregate funds used
by the Reporting Persons to make the purchases were $930,227.94, 48,902.09
and 97,786.66 respectively.

ITEM 4.  PURPOSE OF TRANSACTION.

         The Reporting Persons have acquired the Issuer's Common Stock for
investment purposes, and such purchases have been made in the Reporting
Persons' ordinary course of business.

         In pursuing such investment purposes, the Reporting Persons may
further purchase, hold, vote, trade, dispose or otherwise deal in the Common
Stock at times, and in such manner, as they deem advisable to benefit from
changes in market prices of such Common Stock, changes in the Issuer's
operations, business strategy or prospects, or from sale or merger of the
Issuer.  To evaluate such alternatives, the Reporting Persons will routinely
monitor the Issuer's operations, prospects, business development, management,
competitive and strategic matters, capital structure, and prevailing market
conditions, as well as alternative investment opportunities, liquidity
requirements of the Reporting Persons and other investment considerations.
Consistent with its investment research methods and evaluation criteria, the
Reporting Persons may discuss such matters with management or directors of
the Issuer, other shareholders, industry analysts, existing or potential
strategic partners or competitors, investment and financing professionals,
sources of credit and other investors.  Such factors and discussions may
materially affect, and result in, the Reporting Persons' modifying their
ownership of Common Stock, exchanging information with the Issuer pursuant to
appropriate confidentiality or similar agreements, proposing changes in the
Issuer's operations, governance or capitalization, or in proposing one or
more of the other actions described in subsections (a) through (j) of this
Item 4.

         The Reporting Persons reserve the right to formulate other plans
and/or make other proposals, and take such actions with respect to their
investment in the Issuer, including any or all of the actions set forth in
paragraphs (a) through (j) of Item 4 of Schedule 13D, or acquire additional
Common Stock or dispose of all the Common Stock beneficially owned by them,
in public market or privately negotiated transactions.  The Reporting Persons
may at any time reconsider and change their plans or proposals relating to
the foregoing.

ITEM 5.  INTEREST IN SECURITIES OF THE ISSUER

         (a), (b).  Set forth below is the beneficial ownership of shares of
Common Stock of the Issuer for each person named in Item 2.  Shares reported
as beneficially owned by each of ValueAct Partners, ValueAct Partners II and
ValueAct International are also reported as beneficially owned by VA
Partners, as investment manager or General Partner of each of such investment
partnerships, and by the Managing Members as controlling persons of the
General Partner. VA Partners and the Managing Members also, directly or


                               Page 10 of 15



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.

ValueAct Partners is the beneficial owner of 2,907,887 shares of Common
Stock, representing approximately 9.63% of the Issuer's outstanding Common
Stock. ValueAct Partners II is the beneficial owner of 220,638 shares of
Common Stock, representing less than 1% of the Issuer's outstanding Common
Stock. ValueAct International is the beneficial owner of 1,128,321 shares of
Common Stock, representing approximately 3.74% of the Issuer's outstanding
Common Stock. VA Partners and each of the Managing  Members may be deemed the
beneficial owner of an  aggregate  of  4,256,846 shares  of Issuer  Class B
Common  Stock, representing approximately 14.10% of the Issuer's outstanding
Class B Common Stock. All percentages set forth in this Schedule 13D are
based upon the Issuer's reported 30,189,028 outstanding shares of Class B
Common Stock as reported in the Issuer's Form 10-K for the year ended
September 30, 2002.

(c) The  following  transactions  in the  Issuer's  Common  Stock  were
effected by the Reporting  Persons during the sixty (60) days preceding the
date of this report. All of such transactions represent open market
transactions.

Reporting Person          Trade Date     Shares    Price/Share
----------   	        ---------      -------   -----------

ValueAct Capital          12-27-02        13,766     $9.15
                          12-30-02        51,762     $9.11
                          12-31-02           403     $9.06
                          01-24-03         9,200     $8.66
                          01-27-03         4,300     $8.47
                          01-28-03         6,400     $8.50
                          01-29-03        17,900     $8.49


ValueAct Capital II       12-27-02         1,111     $9.15
                          12-30-02         4,179     $9.11
                          12-31-02            32     $9.06


ValueAct International    12-27-02         2,223     $9.15
                          12-30-02         8,359     $9.11
                          12-31-02            65     $9.06




    (d) and (e)  Not applicable.

                               Page 11 of 15






ITEM 6.  CONTRACTS, ARRANGEMENTS, UNDERSTANDINGS OR RELATIONSHIPS WITH
RESPECT TO SECURITIES OF THE ISSUER

In addition to the Class B Common Stock of the Issuer reported on
herein, each of ValueAct Partners, ValueAct Partners II and ValueAct
International also owns Class A Common Stock, $0.0005 par value per
share, of the Issuer.  The aggregate number of such Class
A shares beneficially owned by the Reporting Persons is 6,173,507,
764,493 and 421,400 respectively. Other than such Class A shares
and as described elsewhere in this Report, the Reporting Persons
have no understandings, arrangements, relationships or contracts
relating to the Issuer's Common Stock and which are required to be
described thereunder.

ITEM 7.  MATERIAL TO BE FILED AS EXHIBITS

1. Joint Filing Agreement







                               Page 12 of 15







                                  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:  January 31, 2003        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:  January 31, 2003        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:  January 31, 2003        George F. Hamel, Jr., Managing Member



                               Page 13 of 15






                              VA Partners, L.L.C.

                              By:    /s/  George F. Hamel, Jr.
                                --------------------------------------
Dated:  January 31, 2003        George F. Hamel, Jr., Managing Member


                              By:    /s/  Jeffrey W. Ubben
                                --------------------------------------
Dated:  January 31, 2003        Jeffrey W. Ubben, Managing Member


                              By:    /s/  George F. Hamel, Jr.
                                --------------------------------------
Dated:  January 31, 2003        George F. Hamel, Jr., Managing Member


                              By:    /s/  Peter H. Kamin
                                --------------------------------------
Dated:  January 31, 2003        Peter H. Kamin, Managing Member



                               Page 14 of 15



                                   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 Gartner
Group, 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:  January 31, 2003        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:  January 31, 2003        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:  January 31, 2003        George F. Hamel, Jr., Managing Member


                              VA Partners, L.L.C.

                              By:    /s/  George F. Hamel, Jr.
                                --------------------------------------
Dated:  January 31, 2003        George F. Hamel, Jr., Managing Member


                              By:    /s/  Jeffrey W. Ubben
                                --------------------------------------
Dated:  January 31, 2003        Jeffrey W. Ubben, Managing Member


                              By:    /s/  George F. Hamel, Jr.
                                --------------------------------------
Dated:  January 31, 2003        George F. Hamel, Jr., Managing Member


                              By:    /s/  Peter H. Kamin
                                --------------------------------------
Dated:  January 31, 2003        Peter H. Kamin, Managing Member


                               Page 15 of 15