UNITED STATES
                       SECURITIES AND EXCHANGE COMMISSION
                             WASHINGTON, D.C. 20549

                                  SCHEDULE 13G

                    UNDER THE SECURITIES EXCHANGE ACT OF 1934

                                (AMENDMENT NO.___)*

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

                     Common Stock, Class B, $.0005 Par Value
--------------------------------------------------------------------------------
                         (Title of Class of Securities)

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

                                December 31, 2002
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             (Date of Event Which Requires Filing of this Statement)

Check the appropriate box to designate the rule pursuant to which this Schedule
is filed:

         [X] Rule 13d-1(b)

         [ ] Rule 13d-1(c)

         [ ] Rule 13d-1(d)

*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 the
disclosures provided in a prior cover page.

The information required in 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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1        NAME OF REPORTING PERSON
         S.S. or I.R.S. IDENTIFICATION NO. OF ABOVE PERSON

                  High Rock Capital LLC
                  04-3397165

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2        CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP*

                                                                         (a) [ ]
                                                                         (b) [ ]
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3        SEC USE ONLY

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4        CITIZENSHIP OR PLACE OF ORGANIZATION

                  Delaware
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                           5        SOLE VOTING POWER
NUMBER OF                                1,678,500
SHARES                     -----------------------------------------------------
BENEFICIALLY OWNED         6        SHARED VOTING POWER
BY                                       -0-
EACH                       -----------------------------------------------------
REPORTING                  7        SOLE DISPOSITIVE POWER
PERSON                                   2,077,460
WITH                       -----------------------------------------------------
                           8        SHARED DISPOSITIVE POWER
                                         -0-
--------------------------------------------------------------------------------
9        AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON

         2,193,360 shares (see Item 4(a) of attached Schedule)
--------------------------------------------------------------------------------
10       CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES*

--------------------------------------------------------------------------------
11       PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW 9

         7.3%
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12       TYPE OF REPORTING PERSON*

         IA
--------------------------------------------------------------------------------



--------------------------------------------------------------------------------
1        NAME OF REPORTING PERSON
         S.S. or I.R.S. IDENTIFICATION NO. OF ABOVE PERSON

                  High Rock Asset Management LLC
                  04-3402072
--------------------------------------------------------------------------------
2        CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP*

                                                                         (a) [ ]
                                                                         (b) [ ]
--------------------------------------------------------------------------------
3        SEC USE ONLY

--------------------------------------------------------------------------------
4        CITIZENSHIP OR PLACE OF ORGANIZATION

                  Delaware
--------------------------------------------------------------------------------
                           5        SOLE VOTING POWER
NUMBER OF                                115,900
SHARES
BENEFICIALLY OWNED         -----------------------------------------------------
BY                         6        SHARED VOTING POWER
EACH                                     -0-
REPORTING
PERSON                     -----------------------------------------------------
WITH
                           7        SOLE DISPOSITIVE POWER
                                         115,900

                           -----------------------------------------------------
                           8        SHARED DISPOSITIVE POWER
                                         -0-

--------------------------------------------------------------------------------
9        AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON

         2,193,360 shares (see Item 4(a) of attached Schedule)
--------------------------------------------------------------------------------
10       CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES*

--------------------------------------------------------------------------------
11       PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW 9

         7.3%
--------------------------------------------------------------------------------
12       TYPE OF REPORTING PERSON*

         IA
--------------------------------------------------------------------------------



                                  Schedule 13G

Item 1(a).        Name of Issuer: Gartner, Inc.

Item 1(b).        Address of Issuer's Principal Executive Offices:
                           P.O. Box 10212
                           56 Top Gallant Road
                           Stamford, CT 06904

Item 2(a).        Names of Persons Filing: High Rock Capital LLC("HRC") and
                  High Rock Asset Management LLC("HRAM")

Item 2(b).        Address of Principal Business Office or, if None, Residence:
                  The address of the principal business office of HRC and HRAM
                  is 28 State Street, 18th Floor, Boston, MA 02109.

Item 2(c).        Citizenship: Each of HRC and HRAM is a limited liability
                  company organized under the laws of the state of Delaware.

Item 2(d).        Title of Class of Securities: Common Stock, Class B, $.0005
                  Par Value

Item 2(e).        CUSIP Number: 366651206

Item 3.           If this statement is filed pursuant to Rules 13d-1(b), or
                  13d-2(b) or (c), check whether the person filing is a:

                  (a)  [ ]  Broker or dealer registered under Section 15 of the
                            Securities Exchange Act of 1934 (the "Act);

                  (b)  [ ]  Bank as defined in Section 3(a)(6) of the Act;

                  (c)  [ ]  Insurance company as defined in Section 3(a)(19) of
                            the Act;

                  (d)  [ ]  Investment company registered under Section 8 of the
                            Investment Company Act of 1940;

                  (e)  [X]  An investment adviser in accordance with Rule 13d-1
                            (b)(1)(ii)(E);

                  (f)  [ ]  An employee benefit plan or endowment fund in
                            accordance with Rule 13d-1(b)(1)(ii)(F);

                  (g)  [ ]  A parent holding company or control person in
                            accordance with Rule 13d-1(b)(1)(ii)(G);

                  (h)  [ ]  A savings association as defined in Section 3(b) of
                            the Federal Deposit Insurance Act;

                  (i)  [ ]  A church plan that is excluded from the definition
                            of an investment company under Section 3(c)(14) of
                            the Investment Company Act;



                  (j)  [ ]  Group, in accordance with Rule 13d-1(b)(1)(ii) (J).

                  If this statement is filed pursuant to Rule 13d-1(c), check
                  this box. [ ]

Item 4.           Ownership.

                  (a)      Amount Beneficially Owned: Each of HRC and HRAM may
                           be deemed to beneficially own 2,193,360 shares as of
                           December 31, 2002.

                           HRC was the record owner of 2,077,460 shares as of
                           December 31, 2002. HRAM was the record owner of
                           115,900 shares as of December 31, 2002. (The shares
                           held of record by HRC and HRAM are referred to
                           collectively herein as the "Record Shares.") By
                           virtue of their relationship as affiliated limited
                           liability companies with the same individual as
                           President, each of HRC and HRAM may be deemed to
                           beneficially own all of the Record Shares. Hence,
                           each of HRC and HRAM may be deemed to beneficially
                           own 2,193,360 shares as of December 31, 2002.

                  (b)      Percent of Class: HRC: 6.9%; HRAM: 0.4%

                  (c)      Number of shares as to which such person has:

                           (i)      sole power to vote or to direct the vote:
                                            HRC:  1,678,500 shares
                                            HRAM: 115,900 shares

                           (ii)     shared power to vote or to direct the vote:
                                            HRC:  0 shares
                                            HRAM: 0 shares

                           (iii)    sole power to dispose or to direct the
                                    disposition of:
                                            HRC:  2,077,460 shares
                                            HRAM: 115,900 shares

                           (iv)     shared power to dispose or to direct the
                                    disposition of:
                                            HRC:  0 shares
                                            HRAM: 0 shares

                  Each of HRC and HRAM expressly disclaims beneficial ownership
                  of any shares of Gartner, Inc., except, in the case of HRC,
                  for the 2,077,460 shares that it holds of record and, in the
                  case of HRAM, for the 115,900 shares that it holds of record.



Item 5.           Ownership of Five Percent or Less of a Class.
                           Not applicable.

Item 6.           Ownership of More than Five Percent on Behalf of Another
                  Person.
                           Not applicable.

Item 7.           Identification and Classification of the Subsidiary Which
                  Acquired the Security Being Reported on by the Parent Holding
                  Company.
                           Not applicable.

Item 8.           Identification and Classification of Members of the Group.
                           Not applicable.

Item 9.           Notice of Dissolution of Group.
                           Not applicable.

Item 10.          Certifications.
                           By signing below I certify that, to the best of my
                  knowledge and belief, the securities referred to above were
                  acquired and are held in the ordinary course of business and
                  were not acquired and are not held for the purpose of or with
                  the effect of changing or influencing the control of the
                  issuer of the securities and were not acquired and are not
                  held in connection with or as a participant in any transaction
                  having that purpose or effect.



                                   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.

Dated: February 5, 2003

HIGH ROCK CAPITAL LLC

By:      High Rock Capital LLC

By:      /s/ David L. Diamond
         ________________________________
         David L. Diamond,
         President

HIGH ROCK ASSET MANAGEMENT LLC

By:      /s/ David L. Diamond
         ________________________________
         David L. Diamond,
         President