Claire Herkes

CIK: 0001843712

Transaction Breakdown

Open Market Buys (P)0 (0.0%)

High conviction signal

Open Market Sales (S)6 (20.7%)

Position reduction

Option Exercises (M)9 (31.0%)

Derivative conversions

Awards (A)4 (13.8%)

Compensation grants

Other (G, F, J, C, D, …)10 (34.5%)

Gifts, tax withholding, conversions, dispositions to the issuer and other codes

Companies & Roles (1)

GARTNER INC

Officer

Discretionary Trading P&L

Holdings

Transaction History (29 total)

IT
GARTNER INC
Aug 7, 2026
Sale(S)
Direct
1K shares at avg. $190.71$198K
IT
GARTNER INC
Feb 9, 2026
Exercise(M)
Direct
976 shares-
IT
GARTNER INC
Feb 9, 2026
Tax Payment(F)
Direct
280 shares at avg. $159.75$45K
IT
GARTNER INC
Feb 9, 2026
Exercise(M)
Direct
892 shares-
IT
GARTNER INC
Feb 9, 2026
Tax Payment(F)
Direct
306 shares at avg. $159.75$49K
IT
GARTNER INC
Feb 8, 2026
Tax Payment(F)
Direct
277 shares at avg. $156.33$43K
IT
GARTNER INC
Feb 8, 2026
Exercise(M)
Direct
850 shares-
IT
GARTNER INC
Feb 6, 2026
Exercise(M)
Direct
576 shares-
IT
GARTNER INC
Feb 6, 2026
Tax Payment(F)
Direct
214 shares at avg. $156.33$33K
IT
GARTNER INC
Feb 5, 2026
Award(A)
Stock Appreciation Rights
Direct
14K shares-
IT
GARTNER INC
Feb 5, 2026
Award(A)
Restricted Stock Units
Direct
2.3K shares-
IT
GARTNER INC
Dec 3, 2025
Sale(S)
Direct
367 shares at avg. $231.56$85K
IT
GARTNER INC
Nov 28, 2025
Tax Payment(F)
Direct
316 shares at avg. $232.74$74K
IT
GARTNER INC
Nov 28, 2025
Disposition(D)
Direct
2.4K shares at avg. $232.74$551K
IT
GARTNER INC
Nov 28, 2025
Exercise(M)
Direct
3.1K shares at avg. $180.64$551K
IT
GARTNER INC
May 16, 2025
Sale(S)
Direct
188 shares at avg. $447.17$84K
IT
GARTNER INC
Feb 10, 2025
Tax Payment(F)
Direct
898 shares at avg. $528.87$475K
IT
GARTNER INC
Feb 10, 2025
Exercise(M)
Direct
1.9K shares-
IT
GARTNER INC
Feb 9, 2025
Tax Payment(F)
Direct
306 shares at avg. $529.29$162K
IT
GARTNER INC
Feb 9, 2025
Tax Payment(F)
Direct
404 shares at avg. $529.29$214K
IT
GARTNER INC
Feb 9, 2025
Exercise(M)
Direct
976 shares-
IT
GARTNER INC
Feb 9, 2025
Exercise(M)
Direct
892 shares-
IT
GARTNER INC
Feb 8, 2025
Tax Payment(F)
Direct
279 shares at avg. $529.29$148K
IT
GARTNER INC
Feb 8, 2025
Exercise(M)
Direct
850 shares-
IT
GARTNER INC
Feb 6, 2025
Award(A)
Restricted Stock Units
Direct
3.4K shares-

		Type	Shares	Price		Ownership
Aug 7, 2026	IT GARTNER INC	Sale(S)	1,039	$190.71	$198,148	Direct
Feb 9, 2026	IT GARTNER INC	Exercise(M)	976	-	$0	Direct
Feb 9, 2026	IT GARTNER INC	Tax Payment(F)	280	$159.75	$44,730	Direct
Feb 9, 2026	IT GARTNER INC	Exercise(M)	892	-	$0	Direct
Feb 9, 2026	IT GARTNER INC	Tax Payment(F)	306	$159.75	$48,884	Direct
Feb 8, 2026	IT GARTNER INC	Tax Payment(F)	277	$156.33	$43,303	Direct
Feb 8, 2026	IT GARTNER INC	Exercise(M)	850	-	$0	Direct
Feb 6, 2026	IT GARTNER INC	Exercise(M)	576	-	$0	Direct
Feb 6, 2026	IT GARTNER INC	Tax Payment(F)	214	$156.33	$33,455	Direct
Feb 5, 2026	IT GARTNER INC	Award(A) Stock Appreciation Rights	14,022	-	-	Direct
Feb 5, 2026	IT GARTNER INC	Award(A) Restricted Stock Units	2,303	-	-	Direct
Dec 3, 2025	IT GARTNER INC	Sale(S)	367	$231.56	$84,983	Direct
Nov 28, 2025	IT GARTNER INC	Tax Payment(F)	316	$232.74	$73,546	Direct
Nov 28, 2025	IT GARTNER INC	Disposition(D)	2,369	$232.74	$551,361	Direct
Nov 28, 2025	IT GARTNER INC	Exercise(M)	3,052	$180.64	$551,313	Direct
May 16, 2025	IT GARTNER INC	Sale(S)	188	$447.17	$84,068	Direct
Feb 10, 2025	IT GARTNER INC	Tax Payment(F)	898	$528.87	$474,925	Direct
Feb 10, 2025	IT GARTNER INC	Exercise(M)	1,937	-	-	Direct
Feb 9, 2025	IT GARTNER INC	Tax Payment(F)	306	$529.29	$161,963	Direct
Feb 9, 2025	IT GARTNER INC	Tax Payment(F)	404	$529.29	$213,833	Direct
Feb 9, 2025	IT GARTNER INC	Exercise(M)	976	-	-	Direct
Feb 9, 2025	IT GARTNER INC	Exercise(M)	892	-	-	Direct
Feb 8, 2025	IT GARTNER INC	Tax Payment(F)	279	$529.29	$147,672	Direct
Feb 8, 2025	IT GARTNER INC	Exercise(M)	850	-	-	Direct
Feb 6, 2025	IT GARTNER INC	Award(A) Restricted Stock Units	3,400	-	-	Direct

1-25 of 29 transactions

About Herkes Claire

Herkes Claire (SEC CIK 0001843712) files insider reports with the SEC as EVP, Conferences of GARTNER INC (IT).

Signal8 holds 11 ownership filings by Herkes Claire, all Form 4s, filed between Sep 16, 2024 and Aug 11, 2026. Those filings report 29 transactions, from Sep 13, 2024 to Aug 7, 2026. Signal8's Form 4 history starts in Sep 2024.

The business address on Herkes Claire's filings is in STAMFORD, CT.

Recent filings by Herkes Claire

Aug 7, 2026: Open-market sale of IT shares (Form 4, code S).
Feb 9, 2026: Option exercise of IT shares (Form 4, code M).
Feb 9, 2026: Tax withholding of IT shares (Form 4, code F).
Feb 9, 2026: Option exercise of IT shares (Form 4, code M).
Feb 9, 2026: Tax withholding of IT shares (Form 4, code F).

Other insiders filing for GARTNER INC (IT)

Arlington Gregory L., SVP, High Tech and Invest
Rupani Altaf, EVP, Chief Information Officer
FERGUSON DIANA SUE, Director
PAGLIUCA STEPHEN G, Director
Rus Daniela L, Director
Serra Eileen, Director

How to read Form 4 transaction codes