Form 4: Herkes Claire reports multiple insider transactions in IT

Rhea-AI Filing Summary

Herkes Claire reported multiple insider transaction types in a Form 4 filing for IT. The filing lists transactions totaling 4,322 shares at a weighted average price of $159.75 per share. Following the reported transactions, holdings were 6,571 shares.

Insider Trade Summary

1,868 shares exercised/converted

Mixed 6 txns

Insider Herkes Claire

Role EVP, Conferences

Type	Security	Shares	Price	Value
Exercise	Restricted Stock Units	976	$0.00	--
Exercise	Restricted Stock Units	892	$0.00	--
Exercise	Common Stock	976	$0.00	--
Tax Withholding	Common Stock	306	$159.75	$49K
Exercise	Common Stock	892	$0.00	--
Tax Withholding	Common Stock	280	$159.75	$45K

Holdings After Transaction: Restricted Stock Units — 0 shares (Direct); Common Stock — 5,985 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 annual installments commencing on February 09, 2023. This represents the 2026 installment. Represents shares withheld for the payment of applicable income and payroll withholding taxes. 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 annual installments commencing on February 09, 2024. This represents the 2026 installment.

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^*

Herkes Claire

(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)
	EVP, Conferences

3. Date of Earliest Transaction (Month/Day/Year)
02/09/2026

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	02/09/2026		M		976(1)	A	$0	5,985	D
Common Stock	02/09/2026		F		306(2)	D	$159.75	5,679	D
Common Stock	02/09/2026		M		892(3)	A	$0	6,571	D
Common Stock	02/09/2026		F		280(2)	D	$159.75	6,291	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	02/09/2026		M			976(1)	(1)	(1)	Common Stock	976	$0	0	D
Restricted Stock Units	$0	02/09/2026		M			892(3)	(3)	(3)	Common Stock	892	$0	892	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 annual installments commencing on February 09, 2023. This represents the 2026 installment.

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

3. 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 annual installments commencing on February 09, 2024. This represents the 2026 installment.

	/s/ Kevin Tang for Claire Herkes	02/11/2026
	** 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 insider transactions did Gartner (IT) report for Claire Herkes?

Gartner reported that EVP, Conferences Claire Herkes converted vested restricted stock units into common stock and disposed of some shares for tax withholding. The filing shows RSU releases and related tax-withholding dispositions, not open-market purchases or sales, all dated February 9, 2026.

How many Gartner (IT) shares did Claire Herkes acquire through RSU vesting?

Claire Herkes acquired common shares upon release of two RSU tranches: 976 restricted stock units from a 2023 grant and 892 restricted stock units from a 2024 grant. Both grants vest in four substantially equal annual installments, and the reported transactions represent the 2026 installments.

How many Gartner (IT) shares were disposed of for taxes in this Form 4?

The Form 4 shows Claire Herkes disposed of 306 common shares and 280 common shares as tax-withholding transactions. These were reported under transaction code “F,” described as payment of income and payroll tax liabilities by delivering shares rather than cash to the company.

At what price were the Gartner (IT) shares used for tax withholding valued?

The shares used for tax withholding were valued at $159.75 per share. This price applied to both tax-withholding dispositions, covering 306 shares in one transaction and 280 shares in another, as part of settling the applicable income and payroll withholding obligations.

What is Claire Herkes’ Gartner (IT) share ownership after these transactions?

After the reported RSU conversions and tax-withholding dispositions, Claire Herkes directly owned 6,291 shares of Gartner common stock. This reflects her equity position following both the exercise or conversion of restricted stock units and the delivery of shares to satisfy tax obligations.

How do the reported Gartner (IT) RSUs vest for Claire Herkes?

The RSUs reported for Claire Herkes vest in four substantially equal annual installments. One grant began vesting on February 9, 2023, and the other on February 9, 2024. The 2026 Form 4 entries represent the respective 2026 installments converting one-for-one into common stock.