Security Snapshot

GARTNER INC - Common Stock, $.0005 par value per share (IT) Institutional Ownership

CUSIP: 366651107

13F Institutional Holders and Ownership History from Q1 2014 to Q2 2026

Latest Period

Q2 2026

Institutions Reporting

642

Shares (Excl. Options)

74,603,199

Price

$129.62

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Latest holder snapshot 5 signals
Portfolio coverage rank
0.01%
Share change
-698,234
Value change
-$176,055,234
Number of holders
642
Security identity Names, identifiers, and filing context for this profile. 1 source field
Underlying class
Common Stock
Issuer context Names, identifiers, and filing context for this profile. 3 identity fields
Shares outstanding
66,941,990
SEC-reported price per share
$133.69
Insider filing price
$133.69
13F Shares, Excluding Options vs Price
13F Value, Excluding Options
Total Investors

Key facts

  • IT - GARTNER INC - Common Stock, $.0005 par value per share is tracked under CUSIP 366651107.
  • 642 institutions reported positions in Q2 2026.
  • 7 significant owners is listed from Schedule 13D/13G reporting.

Change

  • Holder count moved from 712 to 642 between Q1 2026 and Q2 2026.
  • SEC-reported value moved from $11,918,129,149 to $9,680,402,249.

Research use

  • You can quickly see who holds this security, then open quarter and manager detail pages for full evidence.
  • 13F and Schedule 13D/13G sections are kept together so you can cross-check institutional and beneficial ownership context.

Evidence

Source: SEC Form 13F

Latest holder context comes from 642 institutions filings for Q2 2026.

Open SEC evidence

Security key

366651107

Latest holder period

Q2 2026

13F holders

642

13D/G owners

7

CIK / CUSIP context first

13D/G owners

Significant owners

Large-stake holder rows connected to Schedule 13D/G evidence.

Rows
7
Security
IT
Filer Ownership Change % Holdings Value Net Change Nb Shares Change % Reporting Name Report Period
BAMCO INC /NY/ 11% +36% $1,116,437,970 +$242,346,911 7,558,310 +28% Baron Capital Group, Inc. 31 May 2026
Independent Franchise Partners LLP 8.3% +26% $723,663,534 +$127,311,597 5,582,962 +21% Independent Franchise Partners, LLP 30 Jun 2026
VANGUARD CAPITAL MANAGEMENT LLC 7.3% $817,526,996 5,163,111 Vanguard Capital Management 31 Mar 2026
BlackRock, Inc. 7.5% -20% $647,381,776 -$297,154,109 4,994,459 -31% BlackRock, Inc. 30 Jun 2026
AQR CAPITAL MANAGEMENT LLC 6.2% +24% $541,168,166 +$78,779,536 4,175,036 +17% AQR Capital Management, LLC 30 Jun 2026
VANGUARD PORTFOLIO MANAGEMENT LLC 5.3% $587,814,132 3,712,354 Vanguard Portfolio Management 31 Mar 2026
Capital International Investors 2.9% -47% $311,962,231 -$318,157,865 2,022,839 -50% Capital International Investors 31 Mar 2026

As of 30 Jun 2026, 642 institutional investors reported holding 74,603,199 shares of GARTNER INC - Common Stock, $.0005 par value per share (IT). This represents 111% of the company’s total 66,941,990 outstanding shares.

13F concentration

Top 25 institutional shareholders

Largest 13F positions for this security by reported shares and value.

Top holder share
83%
Institution Ownership % Shares Held Share Change % Portfolio % Holdings Value
BAMCO INC /NY/ 11% 7,601,009 +28% 1.5% $985,242,787
Independent Franchise Partners LLP 8.3% 5,582,962 +21% 4.7% $723,663,534
BlackRock, Inc. 7.8% 5,217,146 -24% 0.01% $676,246,451
VANGUARD CAPITAL MANAGEMENT LLC 6.4% 4,266,702 -4.5% 0.01% $553,049,913
AQR CAPITAL MANAGEMENT LLC 6.2% 4,175,036 +17% 0.19% $541,168,194
VANGUARD PORTFOLIO MANAGEMENT LLC 5.3% 3,521,381 -4.7% 0.02% $456,441,405
HARRIS ASSOCIATES L P 4.3% 2,846,799 -9.2% 0.49% $369,002,086
STATE STREET CORP 4.2% 2,808,781 -14% 0.01% $364,074,193
GEODE CAPITAL MANAGEMENT, LLC 3.9% 2,603,296 +18% 0.02% $337,019,425
TWO SIGMA INVESTMENTS, LP 3.2% 2,129,702 +89% 0.21% $276,051,973
Invesco Ltd. 3.1% 2,061,112 +2% 0.02% $267,161,339
FEDERATED HERMES, INC. 3.1% 2,044,435 +21% 0.38% $264,999,664
MORGAN STANLEY 2.8% 1,867,660 -21% 0.01% $242,086,603
GOLDMAN SACHS GROUP INC 2.6% 1,758,739 -0.9% 0.02% $227,967,719
BANK OF AMERICA CORP /DE/ 1.4% 907,735 +17% 0.01% $117,660,611
NORGES BANK 1.3% 854,653 0.01% $110,780,122
D. E. Shaw & Co., Inc. 1.2% 804,821 +227% 0.06% $104,320,898
BNP PARIBAS FINANCIAL MARKETS 1% 673,933 0% 0.05% $87,355,195
NORTHERN TRUST CORP 0.98% 657,780 -24% 0.01% $85,261,444
JANE STREET GROUP, LLC 0.89% 596,327 +36328% 0.05% $77,295,906
CITADEL ADVISORS LLC 0.88% 590,275 +700% 0.04% $76,511,445
ARROWSTREET CAPITAL, LIMITED PARTNERSHIP 0.87% 585,573 +7565% 0.03% $75,901,972
Madison Asset Management, LLC 0.86% 574,609 -6.3% 0.89% $74,480,824
RENAISSANCE TECHNOLOGIES LLC 0.8% 534,069 +75% 0.1% $69,226,024
Black Creek Investment Management Inc. 0.79% 532,034 -16% 3.9% $68,962,247

Quarter history

Institutional holders across reporting periods

Holder count, reported shares/value, and median price by quarter.

Periods
50
Latest
Q2 2026
Rows shown
1-25 of 50
Period 13F Shares, Excl. Options Value, Excl. Options Value Change Price (Median) Investors
2026 Q2 74,603,199 $9,680,402,249 -$176,055,234 $129.62 642
2026 Q1 75,283,607 $11,918,129,149 +$47,791,510 $158.34 712
2025 Q4 72,376,922 $18,252,699,965 +$59,114,396 $252.28 807
2025 Q3 72,029,528 $18,923,641,516 -$895,614,309 $262.87 783
2025 Q2 73,604,318 $29,737,816,262 +$572,040,207 $404.22 889
2025 Q1 72,394,517 $30,365,452,822 +$50,218,704 $419.74 912
2024 Q4 72,461,430 $35,110,242,595 +$427,321,194 $484.47 941
2024 Q3 70,477,974 $35,737,669,283 -$463,623,769 $506.76 899
2024 Q2 71,287,413 $32,000,812,004 +$109,611,128 $449.06 867
2024 Q1 71,095,505 $33,877,266,426 -$112,111,936 $476.67 869
2023 Q4 71,391,079 $32,196,918,627 -$188,024,044 $451.11 856
2023 Q3 71,927,455 $24,720,132,934 +$25,207,090 $343.61 783
2023 Q2 71,772,538 $25,121,496,739 -$440,599,203 $350.31 769
2023 Q1 72,822,899 $23,708,558,440 +$15,584,130 $325.77 753
2022 Q4 73,389,754 $24,671,003,918 +$240,769,385 $336.14 761
2022 Q3 74,378,210 $20,587,931,096 +$131,145,007 $276.69 683
2022 Q2 73,011,771 $17,653,989,304 -$231,924,290 $241.83 676
2022 Q1 73,913,474 $21,991,410,033 -$349,811,704 $297.46 694
2021 Q4 75,045,250 $25,071,598,036 -$322,678,001 $334.32 677
2021 Q3 75,828,518 $23,047,037,710 -$298,698,306 $303.88 638
2021 Q2 77,102,872 $18,671,810,115 -$477,989,016 $242.20 600
2021 Q1 80,337,595 $14,658,316,923 -$364,140,295 $182.55 564
2020 Q4 82,206,137 $13,162,847,829 -$151,800,895 $160.19 536
2020 Q3 83,122,241 $10,382,853,018 -$1,613,178 $124.95 487
2020 Q2 83,018,334 $10,069,416,545 -$126,019,897 $121.33 463
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