GARTNER INC — Director's Dealing 2010

May 18, 2010

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: GARTNER INC (IT)
CIK: 0000749251
Period of Report: 2010-05-15

Reporting Person: Sondergaard Peter (SVP, Research)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2010-05-15	Common Stock	M	9870	—	Acquired	78986	Direct
2010-05-15	Common Stock	F	3535	$24.57	Disposed	75451	Direct

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2010-05-15	Restricted Stock Units	$.0005	M	9870	Disposed		Common Stock (9870)	Direct

Footnotes

F1: This RSU fully vested on May 15, 2010.

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.