[Form 4] GARTNER INC Insider Trading Activity

Rhea-AI Filing Summary

Gartner Inc. (IT) executive Altaf Rupani, EVP and Chief Information Officer, reported equity transactions on 10/15/2025.

He acquired 166 shares of common stock via the release of restricted stock units (transaction code M). The filing notes these RSUs convert one-for-one and vest in four substantially equal installments commencing on October 15, 2024; this was the second installment.

The company withheld 61 shares at $236.79 to cover applicable taxes (transaction code F). After these transactions, Rupani beneficially owned 539 common shares, held directly. He also reported 330 RSUs beneficially owned after the transaction.

Insider Trade Summary

166 shares exercised/converted

Mixed 3 txns

Insider Rupani Altaf

Role EVP, Chief Information Officer

Type	Security	Shares	Price	Value
Exercise	Restricted Stock Units	166	$0.00	--
Exercise	Common Stock	166	$0.00	--
Tax Withholding	Common Stock	61	$236.79	$14K

Holdings After Transaction: Restricted Stock Units — 330 shares (Direct); Common Stock — 600 shares (Direct)

Footnotes (1)

1. Represents shares acquired upon the release of RSUs, which convert into common stock on a one-for-one basis. These RSUs vest in four substantially equal installments commencing on October 15, 2024. This represents the second installment. Represents shares withheld for the payment of applicable income and payroll withholding taxes.

Form 4 Insider Transactions: What Each Field Means →

SEC Form 4

FORM 4

UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940

OMB APPROVAL

OMB Number:			3235-0287
Estimated average burden
hours per response:			0.5

Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

Check this box to indicate that a transaction was made pursuant to a contract, instruction or written plan for the purchase or sale of equity securities of the issuer that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). See Instruction 10.

1. Name and Address of Reporting Person^*

Rupani Altaf

(Last) (First) (Middle)

56 TOP GALLANT RD

(Street)

STAMFORD CT 06904

(City) (State) (Zip)

2. Issuer Name and Ticker or Trading Symbol
GARTNER INC [ IT ]

5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)

	Director		10% Owner
X	Officer (give title below)		Other (specify below)
	EVP, Chief Information Officer

3. Date of Earliest Transaction (Month/Day/Year)
10/15/2025

4. If Amendment, Date of Original Filed (Month/Day/Year)

6. Individual or Joint/Group Filing (Check Applicable Line)

X	Form filed by One Reporting Person
	Form filed by More than One Reporting Person

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	3. Transaction Code (Instr. 8)		4. Securities Acquired (A) or Disposed Of (D) (Instr. 3, 4 and 5)			5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4)	6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
			Code	V	Amount	(A) or (D)	Price
Common Stock	10/15/2025		M		166(1)	A	$0	600	D
Common Stock	10/15/2025		F		61(2)	D	$236.79	539	D

Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 3)	2. Conversion or Exercise Price of Derivative Security	3. Transaction Date (Month/Day/Year)	3A. Deemed Execution Date, if any (Month/Day/Year)	4. Transaction Code (Instr. 8)		5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5)		6. Date Exercisable and Expiration Date (Month/Day/Year)		7. Title and Amount of Securities Underlying Derivative Security (Instr. 3 and 4)		8. Price of Derivative Security (Instr. 5)	9. Number of derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4)	10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)
				Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares
Restricted Stock Units	$0	10/15/2025		M			166	(1)	(1)	Common Stock	166	$0	330	D

Explanation of Responses:

1. Represents shares acquired upon the release of RSUs, which convert into common stock on a one-for-one basis. These RSUs vest in four substantially equal installments commencing on October 15, 2024. This represents the second installment.

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

	/s/ Kevin Tang for Altaf Rupani	10/17/2025
	** Signature of Reporting Person	Date
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* If the form is filed by more than one reporting person, see Instruction 4 (b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.

FAQ

What did Gartner (IT) executive Altaf Rupani report on 10/15/2025?

He reported an RSU release of 166 common shares (code M) and tax withholding of 61 shares at $236.79 (code F).

How many Gartner (IT) shares does the reporting person own after the transactions?

He beneficially owned 539 common shares directly following the reported transactions.

What is the vesting schedule for the reported RSUs at Gartner (IT)?

The RSUs vest in four substantially equal installments commencing on October 15, 2024; this filing reflects the second installment.

What do the Form 4 transaction codes M and F indicate for Gartner (IT)?

M indicates shares acquired upon RSU release; F indicates shares withheld to satisfy taxes.

How many RSUs does the reporting person hold after the transaction at Gartner (IT)?

He reported 330 RSUs beneficially owned after the transaction.

What price was used for the tax withholding shares in the Gartner (IT) filing?

The 61 withheld shares were priced at $236.79 for tax purposes.