SEC Form 4

FORM 4		UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934 or Section 30(h) of the Investment Company Act of 1940	OMB APPROVAL OMB Number: 3235-0287 Estimated average burden hours per response: 0.5
	Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

1. Name and Address of Reporting Person* BRESSLER RICHARD J (Last) (First) (Middle) 56 TOP GALLANT RD P.O. BOX 10212 (Street) STAMFORD CT 06904-2212 (City) (State) (Zip)	2. Issuer Name and Ticker or Trading Symbol GARTNER INC [ IT ]	5. Relationship of Reporting Person(s) to Issuer (Check all applicable) X Director 10% Owner Officer (give title below) Other (specify below)
	3. Date of Earliest Transaction (Month/Day/Year) 06/01/2017
	4. 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 Acquired, Disposed of, or Beneficially Owned
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	3. Transaction Code (Instr. 8)		4. Securities Acquired (A) or Disposed Of (D) (Instr. 3, 4 and 5)			5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4)	6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
			Code	V	Amount	(A) or (D)	Price
Common Stock	06/02/2017		M		1,825	A	$0	19,313	D
Common Stock	06/02/2017		M		1,659	A	$0	20,972	D

Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 3)	2. Conversion or Exercise Price of Derivative Security	3. Transaction Date (Month/Day/Year)	3A. Deemed Execution Date, if any (Month/Day/Year)	4. Transaction Code (Instr. 8)		5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5)		6. Date Exercisable and Expiration Date (Month/Day/Year)		7. Title and Amount of Securities Underlying Derivative Security (Instr. 3 and 4)		8. Price of Derivative Security (Instr. 5)	9. Number of derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4)	10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)
				Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares
Restricted Stock Units	$0	06/01/2017		A		1,658		(1)	(1)	Common Stock	1,658	$0	1,658	D
Restricted Stock Units	$0	06/02/2017		M			1,825	(2)	(2)	Common Stock	1,825	$0	0	D
Restricted Stock Units	$0	06/02/2017		M			1,659	(2)	(2)	Common Stock	1,659	$0	0	D

Explanation of Responses:

1. One Hundred Percent (100%) of the RSUs shall vest on June 1, 2018, subject to Grantee's continued service as a director through such date.

2. These RSUs vested on June 2, 2012 and were released on June 2, 2017.

	/s/ Kevin Tang for Richard J. Bressler	06/05/2017
	** 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 4 (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.

Gartner, Inc.

Substitute Power of Attorney

Under the terms of Powers of Attorney (each, a "Power of Attorney")
previously filed with the U.S. Securities and Exchange Commission,
the undersigned was appointed an attorney-in-fact for the following
individuals to, among other things, execute for and on behalf of
the following individuals any Forms 3, 4 and 5 or any amendments
thereto, in accordance with Section 16(a) of the Securities Exchange
Act of 1934, as amended, and the rules thereunder:

Directors			Officers
Michael J. Bingle		Kendall B. Davis
Peter Bisson			Alwyn Dawkins
Richard J. Bressler		Michael Diliberto
Raul E. Cesan			David Godfrey
Karen E. Dykstra		Eugene A. Hall
Anne Sutherland Fuchs		Robin B. Kranich
William O. Grabe		David K. McVeigh
Stephen J. Pagliuca		Daniel S. Peale
James C. Smith 			Craig W. Safian
				Christopher Thomas
				Per Anders Waern

In accordance with the authority granted under each Power of
Attorney, including the power of substitution, the undersigned
hereby appoints Kevin Tang as substitute attorney-in-fact, on
behalf of the individuals listed above, with the power to exercise
and execute all of the powers granted or conferred in the original
Power of Attorney. This Substitute Power of Attorney shall not
revoke the powers granted to the undersigned in any Powerof Attorney.

This Substitute Power of Attorney shall remain in full force and
effect until the underlying Power of Attorney is revoked or
terminated, unless earlier revoked by the undersigned in a signed
writing.


Date: May 2, 2017

/s/ Daniel S. Peale
Name: Daniel S. Peale
Title: Attorney-in-Fac