GARTNER INC — Director's Dealing 2010

Aug 18, 2010

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: GARTNER INC (IT)
CIK: 0000749251
Period of Report: 2010-08-16

Reporting Person: HALL EUGENE A (Director, CEO)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2010-08-16	Common Stock	M	50000	$14.44	Acquired	634991	Direct
2010-08-16	Common Stock	D	25859	$27.92	Disposed	609132	Direct
2010-08-16	Common Stock	F	10369	$27.92	Disposed	598763	Direct
2010-08-17	Common Stock	M	100000	$14.44	Acquired	698763	Direct
2010-08-17	Common Stock	D	50970	$28.33	Disposed	647793	Direct
2010-08-17	Common Stock	F	21059	$28.33	Disposed	626734	Direct
2010-08-17	Common Stock	S	25115	$28.00	Disposed	601619	Direct
2010-08-16	Common Stock	S	1077	$28.00	Disposed	600542	Direct

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2010-08-16	Stock Appreciation Rights	$14.44	M	50000	Disposed	2013-05-15	Common Stock (50000)	Direct
2010-08-17	Stock Appreciation Rights	$14.44	M	100000	Disposed	2013-05-15	Common Stock (100000)	Direct

Footnotes

F1: This SAR became fully exercisable on 5/15/10.

F2: Represents the simultaneous sale back to the company 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 SAR.

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