Skip to main content
Livermore
Livermore
ZHEN

Gartner Inc

IT
Exchange
NYSE
Industry
Services-Management Services
SEC CIK
0000749251

In the last 90 days, Gartner Inc insiders filed 0 open-market purchases and 5 sales; 653 institutions reported holding it in 13F filings for Q2 2026, worth $9.69B in total; Harris Associates (Oakmark) is the only superinvestor holding it.

Holders of 5% or more of IT

Holders whose latest Schedule 13D or 13G filing reports 5% or more of Gartner Inc, largest stake first. The change is against the holder's previous filing.

Holders of 5% or more of IT
HolderLatest formStakeChangeFirst filedLatest filingFiling
Vanguard Group Inc13G/A12.43%9.57M shares–Jul 29, 20251 filingJul 29, 2025SEC
BlackRock, Inc.13G/A9.50%7.29M shares–Jul 17, 20251 filingJul 17, 2025SEC
Bamco Inc13G/A5.71%4.32M shares+0.80 ppfrom 4.91%Nov 14, 20243 filingsNov 14, 2025SEC

Stakes are as of each holder's latest filing. Holders whose last filing was in the old format (before December 18, 2024) have no stake on record and are not listed, and after an acquisition or delisting holders usually stop filing.

13D and 13G filings

5 Schedule 13D and 13G filings on Gartner Inc, newest first, including old-format filings without a stake.

Schedule 13D and 13G filings on IT
Filed (ET)FilerFormStakeChangeEvent dateFiling
Nov 14, 202511:25 AM ETBamco Incand 3 others13G/A5.71%4.32M shares+0.80 ppfrom 4.91%Sep 30, 2025SEC
Jul 29, 20251:34 PM ETVanguard Group Inc13G/A12.43%9.57M shares–Jun 30, 2025SEC
Jul 17, 20258:12 PM ETBlackRock, Inc.13G/A9.50%7.29M shares–Jun 30, 2025SEC
May 15, 202512:20 PM ETBamco Incand 3 others13G/A4.91%3.77M shares−0.31 ppfrom 5.22%Below 5%Mar 31, 2025SEC
Nov 14, 202410:05 AM ETBamco Incand 3 others13G/A5.22%4.02M shares–Sep 30, 2024SEC

Form 144: proposed insider sales

Notices from officers, directors and other affiliates planning to sell Gartner Inc shares.

No Form 144 notices for Gartner Inc are on file.