GARTNER INC — Director's Dealing 2023

May 19, 2023

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: GARTNER INC (IT)
CIK: 0000749251
Period of Report: 2023-05-17

Reporting Person: Allard Kenneth (EVP & CMO)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2023-05-17	Common Stock	M	3377	$153.70	Acquired	9362	Direct
2023-05-17	Common Stock	D	1606	$323.30	Disposed	7756	Direct
2023-05-17	Common Stock	F	979	$323.30	Disposed	6777	Direct
2023-05-18	Common Stock	S	792	$327.10	Disposed	5985	Direct

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2023-05-17	Stock Appreciation Rights	$153.70	M	3377	Disposed	2026-05-08	Common Stock (3377)	Direct

Footnotes

F1: Represents shares acquired upon exercise of SARs.

F2: Represents shares withheld that had an aggregate value, based on the market price on the date of exercise, substantially equal to the aggregate exercise price of the SARs.

F3: Represents shares withheld for the payment of applicable income and payroll withholding taxes.

F4: This transaction was executed in multiple trades at prices ranging from $327.07 to $327.11. 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: These SARs are part of an award that became exercisable in four substantially equal annual installments, commencing May 8, 2020, and are fully exercisable.