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IT · Gartner Inc

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Market Cap
$12.19B
Shares
63.15M

Institutional ownership from SEC Form 13F filings. Investment managers with more than $100 million in U.S. equities must disclose their positions every quarter, within 45 days of quarter-end, so the holdings shown can lag the market by up to a quarter.

Holders: 655
Total Value: $9,822,845,295
Total Shares: 75,915,836
Showing 1–100 of 681 holdings by value · page 1 of 7

Institutional Ownership Trend

26 quarters

Holder Concentration

Across 655 13F filers · Δ vs Mar 31, 2026
Top Holder
10.0%
Sep 2023 → Jun 2026 · range 9.0% – 13.9%
+1.0 pts
Top 5
35.4%
Sep 2023 → Jun 2026 · range 33.5% – 39.5%
+1.9 pts
Top 10
53.8%
Sep 2023 → Jun 2026 · range 46.3% – 54.1%
+1.2 pts
HHI
377
Sep 2023 → Jun 2026 · range 355 – 455
Broadly held+22

Quarterly Activity

vs Mar 31, 2026
New
85
Increased
198
Decreased
298
Sold Out
154
Unchanged
74
Holder count: -69
Institutional value: -18.7%
Shares held: -0.6%

Top Buyers

vs Mar 31, 2026
Institution Added Now Holds Open

Top Sellers

vs Mar 31, 2026
Institution Sold Now Holds Open

Top New Positions

vs Mar 31, 2026
Institution Acquired Value (USD) Open

Top Sold-Out Positions

vs Mar 31, 2026
Institution Previously Held Last Value (USD) Open
Showing 100 of 681
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Holder Value (USD) % of 13F Shares Open
Key facts CIK 749251 CUSIP 366651107 13F (30d) 435 filings 415 filers Visit website Investor relations