SEC FORM 3

SEC Form 3

FORM 3

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

INITIAL STATEMENT OF BENEFICIAL OWNERSHIP OF SECURITIES

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940

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1. Name and Address of Reporting Person^*

Sondergaard Peter

(Last)

(First)

(Middle)

56 TOP GALLANT ROAD

P.O. BOX 10212

(Street)

STAMFORD

06904-2212

(City)

(State)

(Zip)

2. Date of Event Requiring Statement (Month/Day/Year)
11/01/2004

3. Issuer Name and Ticker or Trading Symbol
GARTNER INC [ IT ]

4. Relationship of Reporting Person(s) to Issuer
(Check all applicable)

	Director	10% Owner
X	Officer (give title below)	Other (specify below)
	SVP, Research Content

5. If Amendment, Date of Original Filed (Month/Day/Year)

6. Individual or Joint/Group Filing (Check Applicable Line)

X	Form filed by One Reporting Person
	Form filed by More than One Reporting Person

Table I - Non-Derivative Securities Beneficially Owned
1. Title of Security (Instr. 4)	2. Amount of Securities Beneficially Owned (Instr. 4)	3. Ownership Form: Direct (D) or Indirect (I) (Instr. 5)	4. Nature of Indirect Beneficial Ownership (Instr. 5)
Common Stock Class A	13,624⁽¹⁾	D

Table II - Derivative Securities Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 4)	2. Date Exercisable and Expiration Date (Month/Day/Year)		3. Title and Amount of Securities Underlying Derivative Security (Instr. 4)		4. Conversion or Exercise Price of Derivative Security	5. Ownership Form: Direct (D) or Indirect (I) (Instr. 5)	6. Nature of Indirect Beneficial Ownership (Instr. 5)
1. Title of Derivative Security (Instr. 4)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares	4. Conversion or Exercise Price of Derivative Security	5. Ownership Form: Direct (D) or Indirect (I) (Instr. 5)	6. Nature of Indirect Beneficial Ownership (Instr. 5)
Non Qualified Stock Option (right to buy)	11/09/2000⁽²⁾	11/09/2009	Common Stock Class A	60,000	$10.313	D
Non Qualified Stock Option (right to buy)	12/15/2006⁽³⁾	12/15/2008	Common Stock Class A	4,000	$19.285	D
Non Qualified Stock Option (right to buy)	02/24/1998⁽²⁾	02/24/2007	Common Stock Class A	10,000	$19.666	D
Non Qualified Stock Option (right to buy)	01/28/2007⁽⁴⁾	01/28/2009	Common Stock Class A	5,500	$22.705	D
Non-Qualified Stock Option (right to buy)	12/13/2003⁽⁵⁾	12/13/2002	Common Stock Class A	3,641	$9.05	D
Non-Qualified Stock Option (right to buy)	11/28/2002⁽⁵⁾	11/28/2011	Common Stock Class A	5,850	$9.1	D
Non-Qualified Stock Option (right to buy)	06/01/2005⁽⁶⁾	06/01/2014	Common Stock Class A	12,000	$12.45	D

Explanation of Responses:

1. 168 of total shares are restricted with respect to their transferability. The restriction on transferability lapses in six substantially equal annual installments, commencing two years after the date of grant, 1/28/1999. 500 restricted shares were originally granted.

2. This option is fully exercisable.

3. This option becomes exercisable 6 years from the date of grant, 12/15/98, subject to acceleration of vesting and exercisability upon the achievement of certain financial performance targets determined by the Board in its sole discretion, and which acceleration has not occurred as of the date hereof.

4. 2,500 options are fully exercisable and 3,000 options becomes exercisable 6 years from the date of grant, 01/28/99, subject to acceleration of vesting and exercisability upon the achievement of certain financial performance targets determined by the Board in its sole discretion, and which acceleration has not occurred as of the date hereof.

5. The option becomes exercisable in three substantially equal annual installments commencing one year after the date of grant, 11/28/01.

6. The option becomes exercisable in three substantially equal annual installments commencing one year after the date of grant, 06/1/2004.

	By: /s/ Gary Papilsky For: Peter Sondergaard	11/10/2004
	** Signature of Reporting Person	Date
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* If the form is filed by more than one reporting person, see Instruction 5 (b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.