[Form 4] GARTNER INC Insider Trading Activity

Rhea-AI Filing Summary

John J. Rinello, SVP, Global Business Sales at Gartner, Inc. (IT) reported routine equity activity related to restricted stock units. On 09/15/2025, 59 restricted stock units converted into 59 shares of common stock at no cost upon vesting, increasing his reported direct beneficial ownership to 3,284 shares. On the same date, 18 shares were withheld to cover income and payroll taxes at an effective price of $246.89 per share, reducing his post-transaction ownership to 3,266 shares. The filing is dated 09/17/2025 and includes an explanation that the RSUs vest in four equal annual installments beginning 09/15/2022; this transaction represents the 2025 installment.

Insights

Financial Analyst

TL;DR: Routine executive RSU vesting and tax-withholding; no material change to ownership stake.

An executive received 59 vested RSUs converting 1:1 into common shares and had 18 shares withheld for taxes at $246.89 per share. The transaction follows the issuer's established RSU schedule with annual installments and does not indicate additional purchases or sales beyond tax withholding. For investors, this reflects scheduled compensation-related equity issuance rather than an active change in confidence or strategy.

Corporate Governance Expert

TL;DR: Standard compensation vesting and tax withholding consistent with long-term incentive practices.

The form shows typical executive compensation mechanics: time-based RSU vesting in the fourth installment of a four-year schedule and automatic share withholding to satisfy tax obligations. The filing is properly reported and signed. There are no indications of retention plan amendments, loans, or unusual transfer mechanisms in this filing.

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

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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^*

Rinello John J

(Last) (First) (Middle)

56 TOP GALLANT ROAD

(Street)

STAMFORD CT 06902

(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)
	SVP, Global Business Sales

3. Date of Earliest Transaction (Month/Day/Year)
09/15/2025

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	09/15/2025		M		59(1)	A	$0	3,284	D
Common Stock	09/15/2025		F		18(2)	D	$246.89	3,266	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	09/15/2025		M			59	(1)	(1)	Common Stock	59	$0	0	D

Explanation of Responses:

1. Represents shares acquired upon release of RSUs, which convert into common stock on a one-for-one basis. These RSUs vest in four substantially equal annual installments, commencing on September 15, 2022. This represents the 2025 installment.

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

	/s/ Kevin Tang for John J. Rinello	09/17/2025
	** 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.
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