Diana Sue Ferguson - 01 Oct 2025 Form 4 Insider Report for GARTNER INC (IT)

Role: Director
Signature: /s/ Kevin Tang for Diana S. Ferguson
Issuer symbol: IT
Transactions as of: 01 Oct 2025
Net transactions value: +$24,347
Form type: 4
Filing time: 03 Oct 2025, 16:28:08 UTC
Previous filing: 11 Aug 2025
Next filing: 06 Jan 2026
SEC: View on sec.gov

Reporting Owners (1)

Name	Relationship	Address	Signature	Signature date	CIK
FERGUSON DIANA SUE	Director	56 TOP GALLANT RD., STAMFORD	/s/ Kevin Tang for Diana S. Ferguson	03 Oct 2025	0001275975

Transactions Table

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Ownership	Footnotes
transaction	IT	Common Stock	Other	$0	+97	+4.4%	$0.000000	2,324	01 Oct 2025	Direct	F1

Derivative Securities (e.g., puts, calls, warrants, options, convertible securities)

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Underlying Class	Amount	Exercise Price	Ownership	Footnotes
transaction	IT	Common Stock Equivalent (CSE)	Award	$24,347	+97	+120%	$251.00	178	01 Oct 2025	Common Stock	97	$0.000000	Direct	F2
transaction	IT	Common Stock Equivalent (CSE)	Other	$0	-97	-54%	$0.000000	81	01 Oct 2025	Common Stock	97	$0.000000	Direct	F2

* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id	Content
F1	This reporting person has elected to receive an immediate distribution of the CSE shares.
F2	These are Common Stock Equivalents ("CSEs") received as compensation for service as an outside director of Gartner, Inc. They were granted under the Gartner, Inc. Long-Term Incentive Plan ("LTIP"). The CSEs convert into Gartner common stock on the date the outside director's continuous status as a director terminates, or as otherwise provided in the LTIP.