GARTNER INC — Director's Dealing 2011

Mar 1, 2011

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: GARTNER INC (IT)
CIK: 0000749251
Period of Report: 2011-02-25

Reporting Person: SCHWARTZ LEWIS G (SVP, Gen Counsel)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2011-02-25	Common Stock	M	22000	$14.44	Acquired	58345	Direct
2011-02-25	Common Stock	D	8426	$37.70	Disposed	49919	Direct
2011-02-25	Common Stock	F	5830	$37.70	Disposed	44089	Direct
2011-02-25	Common Stock	M	1400	$11.44	Acquired	45489	Direct
2011-02-25	Common Stock	S	1400	$37.9371	Disposed	44089	Direct
2011-02-25	Common Stock	M	4599	$12.49	Acquired	48688	Direct
2011-02-25	Common Stock	S	4599	$37.8331	Disposed	44089	Direct
2011-02-25	Common Stock	M	18600	$11.44	Acquired	62689	Direct
2011-02-25	Common Stock	S	18600	$37.8331	Disposed	44089	Direct
2011-02-28	Common Stock	M	15401	$12.49	Acquired	59490	Direct
2011-02-28	Common Stock	S	15401	$37.7044	Disposed	44089	Direct
2011-02-28	Common Stock	S	7744	$37.70	Disposed	36345	Direct
2011-02-28	Common Stock	S	7068	$37.80	Disposed	29277	Direct
2011-02-28	Common Stock	J	165	$35.834	Acquired	29442	Direct

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2011-02-25	Stock Appreciation Rights	$14.44	M	22000	Disposed	2013-05-15	Common Stock (22000)	Direct
2011-02-25	Non-Qualified Stock Option (Right to Buy)	$11.44	M	1400	Disposed	2014-02-03	Common Stock (1400)	Direct
2011-02-25	Non Qualified Stock Option (Right to Buy)	$12.49	M	4599	Disposed	2014-06-07	Common Stock (4599)	Direct
2011-02-25	Non-Qualified Stock Option (Right to Buy)	$11.44	M	18600	Disposed	2014-02-03	Common Stock (18600)	Direct
2011-02-28	Non Qualified Stock Option (Right to Buy)	$12.49	M	15401	Disposed	2014-06-07	Common Stock (15401)	Direct

Footnotes

F1: 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.

F2: Represents shares withheld from the settlement of the SARs for the payment of applicable income and payroll tax withholding due upon exercise.

F3: This option is fully exercisable.

F4: This transaction was executed in multiple trades at prices ranging from $37.92 to $37.94. The price reported above 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.

F5: The option is fully exercisable.

F6: This transaction was executed in multiple trades at prices ranging from $37.83 to $37.84. The price reported above 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.

F7: This transaction was executed in multiple trades at prices ranging from $37.70 to $37.80. The price reported above 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.

F8: Represents shares acquired under Gartner Inc.'s 2002 Employee Stock Purchase Plan in a transaction exempt from Section 16(b) pursuant to Rule 16b-3(c).