GARTNER INC — Director's Dealing 2010

May 5, 2010

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: GARTNER INC (IT)
CIK: 0000749251
Period of Report: 2010-05-03

Reporting Person: Sondergaard Peter (SVP, Research)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2010-05-03	Common Stock	M	650	—	Acquired	12228	Indirect
2010-05-03	Common Stock	S	205	$24.33	Disposed	12023	Indirect

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2010-05-03	Restricted Stock Units	$.0005	M	650	Disposed		Common Stock (650)	Indirect

Footnotes

F1: The Restricted Stock Unit vested in four substantially equal annual installments beginning on May 3rd, 2007.

F2: Represents shares acquired upon release of restricted stock units.

F3: Represents shares withheld from the released restricted stock units for the payment of applicable income and payroll withholding taxes due on release.