Ownership Submission
FORM 4
Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).
UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIES

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934, Section 17(a) of the Public Utility Holding Company Act of 1935 or Section 30(h) of the Investment Company Act of 1940
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(Print or Type Responses)
1. Name and Address of Reporting Person *
WAERN PER ANDERS
  2. Issuer Name and Ticker or Trading Symbol
GARTNER INC [IT]
5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)
_____ Director _____ 10% Owner
__X__ Officer (give title below) _____ Other (specify below)
SVP, Consulting
(Last)
(First)
(Middle)
56 TOP GALLANT RD, P.O. BOX 10212
3. Date of Earliest Transaction (Month/Day/Year)
02/17/2017
(Street)

STAMFORD, CT 06904-2212
4. If Amendment, Date 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
(City)
(State)
(Zip)
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 02/17/2017   S   9,685 D $ 103.0124 (1) 600 D  
Common Stock 02/17/2017   S   600 D $ 102.712 0 D  
Common Stock 02/17/2017   M   4,726 A $ 49.37 4,726 D  
Common Stock 02/17/2017   D   2,263 (6) D $ 103.13 2,463 D  
Common Stock 02/17/2017   F   1,205 (7) D $ 103.13 1,258 D  
Common Stock 02/17/2017   M   5,020 A $ 64.64 6,278 D  
Common Stock 02/17/2017   D   3,147 (6) D $ 103.13 3,131 D  
Common Stock 02/17/2017   F   916 (7) D $ 103.13 2,215 D  
Common Stock 02/17/2017   M   4,714 A $ 77.92 6,929 D  
Common Stock 02/17/2017   D   3,562 (6) D $ 103.13 3,367 D  
Common Stock 02/17/2017   F   563 (7) D $ 103.13 2,804 D  
Common Stock 02/17/2017   M   5,419 A $ 80.06 8,223 D  
Common Stock 02/17/2017   D   4,207 (6) D $ 103.13 4,016 D  
Common Stock 02/17/2017   F   593 (7) D $ 103.13 3,423 D  

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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 Underlying Securities
(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 of Derivative Security: 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 $ 49.37 02/17/2017   M     4,726 02/12/2014(2) 02/12/2020(2) Common Stock 4,726 $ 0 0 D  
Stock Appreciation Rights $ 64.64 02/17/2017   M     5,020 02/10/2015(3) 02/10/2021(3) Common Stock 5,020 $ 0 5,020 D  
Stock Appreciation Rights $ 77.92 02/17/2017   M     4,714 02/09/2016(4) 02/09/2022(4) Common Stock 4,714 $ 0 9,427 D  
Stock Appreciation Rights $ 80.06 02/17/2017   M     5,419 02/08/2017(5) 02/08/2023(5) Common Stock 5,419 $ 0 16,256 D  

Reporting Owners

Reporting Owner Name / Address Relationships
 Director  10% Owner  Officer  Other
WAERN PER ANDERS
56 TOP GALLANT RD
P.O. BOX 10212
STAMFORD, CT 06904-2212
      SVP, Consulting  

Signatures

 /s/ Clare Kretzman for Per Anders Waern   02/21/2017
**Signature of Reporting Person Date

Explanation of Responses:

* 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).
(1) This transaction was executed in multiple trades at prices ranging from $103.00 to $103.065. The price reported reflects the weighted average sale price. The reporting person hereby undertakes to provide upon request to the SEC staff, the issuer or a security holder of the issuer full information regarding the number of shares and prices at which the transaction was effected.
(2) These SARs became exercisable in four substantially equal annual installments commencing on 2/12/2014.
(3) These SARs become exercisable in four substantially equal annual installments commencing on 02/10/2015.
(4) These SARs become exercisable in four substantially equal annual installments commencing on 2/9/2016.
(5) These SARs become exercisable in four substantially equal annual installments commencing on 2/8/2017.
(6) 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.
(7) Represents shares withheld from the settlement of the SARs for the payment of applicable income and payroll tax withholding due upon exercise.

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