SEC FORM 4 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
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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*
HALL EUGENE A

(Last) (First) (Middle)
56 TOP GALLANT ROAD
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
X Officer (give title below) Other (specify below)
CEO
3. Date of Earliest Transaction (Month/Day/Year)
08/06/2018
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 08/06/2018 M 134,981 A $64.64 1,308,863 D
Common Stock 08/06/2018 D 62,310(2) D $140.03 1,246,553 D
Common Stock 08/06/2018 F 33,676(3) D $140.03 1,212,877 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
Stock Appreciation Rights $64.64 08/06/2018 M 134,981 02/10/2015(1) 02/10/2021(1) Common Stock 134,981 $0 0 D
Explanation of Responses:
1. These SARs become exercisable in four substantially equal annual installments commencing on 02/10/2015and are fully exercisable.
2. Represents the simultaneous sale back to the issuer of this number of shares having an aggregate value, based on the market price on the date of exercise, substantially equal to the aggregate exercise price of the SARs.
3. Represents shares withheld from the settlement of the SARs for the payment of applicable income and payroll tax withholding due upon exercise.
/s/ Kevin Tang for Eugene A. Hall 08/08/2018
** 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.

POWER OF ATTORNEY

Know all by these presents, that the undersigned hereby
constitutes and appoints each of Jules Kaufman, Kevin Tang, 
and Jenna Gallagher, signing singly, the undersigned's true 
and lawful attorney-in-fact to:

(1)	Execute for and on behalf of the undersigned, in the
undersigned's capacity as an Executive Officer and/or Director
of Gartner, Inc. (the 'Company'), Forms ID, 3, 4 and 5 in
accordance with Section 16(a) of the Securities Exchange Act of
1934 and the rules thereunder;

(2)	Do and perform any and all acts for and on behalf of
the undersigned which may be necessary or desirable to complete
and execute any such Form ID, 3, 4 or 5 and timely file such form
with the United States Securities and Exchange Commission and any
stock exchange or similar authority; and

(3)	Take any other action of any type whatsoever in connection
with the foregoing which, in the opinion of such attorney-in-fact,
may be of benefit to, in the best interest of, or legally required
by, the undersigned, it being understood that the documents
executed by such attorney-in-fact on behalf of the undersigned
pursuant to this Power of Attorney shall be in such form and shall
contain such terms and conditions as such attorney-in-fact may
approve in
 such attorney-in-fact's discretion.

The undersigned hereby grants to each such attorney-in-fact full
power and authority to do and perform any and every act and thing
whatsoever requisite, necessary or proper to be done in the exercise
of any of the rights and powers herein granted, as fully to all
intents and purposes as the undersigned might or could do if
personally present, with full power of substitution or revocation,
hereby ratifying and confirming all that such attorney-in-fact, or
such attorney-in-fact's substitute or substitutes, shall lawfully
do or cause to be done by virtue of this power of attorney and the
rights and powers herein granted.  The undersigned acknowledges
that the foregoing attorneys-in-fact, in serving in such capacity
at the request of the undersigned, are not assuming, nor is the
Company assuming, any of the undersigned's responsibilities to comply
with Section 16 of the Securities Exchange Act of 1934.


    This Power of Attorney shall remain in full force and effect
until the undersigned is no longer required to file Forms
ID, 3, 4 and 5 with respect to the undersigned's holdings of
and transactions in securities issued by the Company, unless earlier
revoked by the undersigned in a signed writing delivered to the
foregoing attorneys-in-fact.


   IN WITNESS WHEREOF, the undersigned has caused this Power of Attorney
to be executed as of this 25th day of July 2018.



					/s/ Eugene A. Hall