Form4insider filings, from the source

Company · CIK 0000749251 · SIC 8741 — Services-Management Services · NYSE

GARTNER INC · IT

Insider activity reported against this company. All insider holders · On EDGAR ↗

1M3M6M1Y2YAll datashares as filed — not split-adjusted
Open-market buys & salesbuys $0 · 0sales $644k · 1net −$644k
$10k$10k$100k$100k$1M$1MbuyssalesAug 27Sep 1Sep 6Sep 11Sep 17Sep 22Sep 27

Reported at this company — common stock

TradeReported (ET)InsiderSharesAvg priceTotalOwned afterΔ stakeFlags
Sep 11, 2026 GForm 4 →Sep 15, 4:32 pm EDTWilliam O GrabeDirector672——1,896—
Aug 31, 2026 JForm 4 →Sep 2, 4:28 pm EDTRobin B KranichEVP & CHRO31$188.20$5,83420,389—
Aug 31, 2026 JForm 4 →Sep 2, 4:25 pm EDTEugene A HallChairman and CEO, Director31$188.20$5,8341,188,228—
Aug 31, 2026 JForm 4 →Sep 2, 4:22 pm EDTCraig SafianEVP & CFO18$188.20$3,38883,090—
Aug 31, 2026 JForm 4 →Sep 2, 4:16 pm EDTAltaf RupaniEVP, Chief Information Officer19$188.20$3,5761,199—
Aug 27, 2026 SForm 4 →Aug 31, 4:06 pm EDTRobin B KranichEVP & CHRO3,278$196.50$644,12720,358−13.9%

Reported at this company — derivatives (options, RSUs, warrants)

No reported derivative activity in this period.