GARTNER INC — Director's Dealing 2011

Feb 25, 2011

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: GARTNER INC (IT)
CIK: 0000749251
Period of Report: 2011-02-23

Reporting Person: WAERN PER ANDERS (SVP, Consulting)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2011-02-23	Common Stock	S	15205	$38.00	Disposed	6282	Direct
2011-02-23	Common Stock	M	9446	$18.10	Acquired	15728	Direct
2011-02-23	Common Stock	D	4584	$37.29	Disposed	11144	Direct
2011-02-23	Common Stock	F	2088	$37.29	Disposed	9056	Direct
2011-02-23	Common Stock	M	12129	$11.11	Acquired	21185	Direct
2011-02-23	Common Stock	D	3613	$37.29	Disposed	17572	Direct
2011-02-23	Common Stock	F	3658	$37.29	Disposed	13914	Direct
2011-02-23	Common Stock	M	7488	$22.06	Acquired	21402	Direct
2011-02-23	Common Stock	D	4429	$37.29	Disposed	16973	Direct
2011-02-23	Common Stock	F	1314	$37.29	Disposed	15659	Direct
2011-02-24	Common Stock	S	6282	$37.50	Disposed	9377	Direct
2011-02-24	Common Stock	S	1718	$37.6093	Disposed	7659	Direct
2011-02-24	Common Stock	S	7659	$37.50	Disposed	0	Direct

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2011-02-23	Stock Appreciation Rights	$18.10	M	9446	Disposed	2015-02-15	Common Stock (9446)	Direct
2011-02-23	Stock Appreciation Rights	$11.11	M	12129	Disposed	2016-02-11	Common Stock (12129)	Direct
2011-02-23	Stock Appreciation Rights	$22.06	M	7488	Disposed	2017-02-11	Common Stock (7488)	Direct

Footnotes

F1: These SARs are part of an award that became exercisable in four substantially equal, annual installments commencing on 2/15/2009.

F2: Represents the simultaneous sale back to the issuer of this number of shares having an aggregrate value, based on the market price on the date of exercise, substantially equal to the aggregrate exercise price of the SARs.

F3: Represents shares withheld from the settlement of the SARs for the payment of applicable income and payroll tax withholding due upon exercise.

F4: These SARs are part of an award that became exercisable in four substantially equal, annual installments commencing on 2/11/2010.

F5: These SARs are part of an award that became exercisable in four substantially equal, annual installments commencing on 2/11/2011.

F6: This transaction was executed in multiple trades at prices ranging from $37.6063 to $37.63. 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.