Who owns Gartner (IT)
Which tracked institutional funds hold IT, how they are positioned, and who is buying versus exiting — from SEC Form 13F-HR filings. See IT company fundamentals →
Ownership as of the 2026-Q2 13F filings (latest filed 2026-09-22). 13F is disclosed up to 45 days after quarter-end, so the most recent quarter fills in over the following weeks.
How the tape is positioned
The tracked-fund tape on IT is one-sided between 2026-Q1 and 2026-Q2: 90 added or opened and 279 trimmed or exited — on balance reducing.
A prompt to read the filings, not a verdict. 13F is a quarter-end snapshot disclosed up to 45 days late; a fund adds or exits for mandate, benchmark, and timing reasons that have nothing to do with a view on the stock. This is a starting question, not a signal to trade.
Conviction spread
IT’s largest tracked holder by dollar value, BAMCO INC /NY/, sizes it at 1.5% of its own reported 13F book, while the median holder sizes it at 0.0% of theirs — a 1.5pp conviction gap — its largest holder concentrates the name more heavily than the typical one.
Book-share is each fund’s reported value in IT divided by its whole reported 13F book, so it is comparable across funds of different sizes and is unaffected by stock splits. A higher share means a fund has committed more of its book to the name — a starting question about conviction, not a verdict or a signal to trade.
Institutional & insider positioning
Between 2026-Q1 and 2026-Q2, across 603 tracked filers holding IT, 260 increased or opened the position and 467 reduced or closed it; over the same quarter, there were no open-market insider Form 4s.
This fuses two public signals for the same quarter — how tracked institutions changed their positions and whether insiders bought or sold in the open market. It describes what was filed; it is a starting question, not a verdict or a signal to trade.
New buyers & exits
Funds opening or closing a position in IT between the 2026-Q1 and 2026-Q2 13F filings, and the largest changes among funds holding it in both. New buyers and exits are counted on fund presence (split-invariant); adds and trims are measured on reported value.
New buyers 33
- Trexquant Investment LP$26M
- Qube Research & Technologies Ltd$23M
- OSSIAM$18M
- Longaeva Partners L.P.$12M
- ING GROEP NV$5M
- Verition Fund Management LLC$5M
Full exits 82
- Capital International Investors$320M
- Amundi$76M
- Bollard Group LLC$58M
- Pacer Advisors, Inc.$46M
- NATIXIS ADVISORS, LLC$41M
- HighTower Advisors, LLC$22M
Largest adds
- TWO SIGMA INVESTMENTS, LP$98M
- JANE STREET GROUP, LLC$77M
- ARROWSTREET CAPITAL, LIMITED PARTNERSHIP$75M
- CITADEL ADVISORS LLC$68M
- D. E. Shaw & Co., Inc.$65M
- BAMCO INC /NY/$48M
Largest trims
- NORGES BANK$289M
- VANGUARD CAPITAL MANAGEMENT LLC$154M
- STATE STREET CORP$153M
- DEUTSCHE BANK AG\$135M
- MORGAN STANLEY$134M
- VANGUARD PORTFOLIO MANAGEMENT LLC$128M
Institutional holders
One row per tracked fund, most shares held first (every row is from one quarter; reported value breaks ties). “% of value” is the fund’s share of this security’s tracked institutional value — not of shares outstanding.
| Fund | Shares | Reported value | % of value | Quarter |
|---|---|---|---|---|
| BAMCO INC /NY/ added | 7,601,009 | $985M | 11.0% | 2026-Q2 |
| Independent Franchise Partners LLP added | 5,582,962 | $724M | 8.1% | 2026-Q2 |
| BlackRock, Inc. added | 5,217,146 | $676M | 7.6% | 2026-Q2 |
| VANGUARD CAPITAL MANAGEMENT LLC trimmed | 4,266,702 | $553M | 6.2% | 2026-Q2 |
| AQR CAPITAL MANAGEMENT LLC added | 4,175,036 | $541M | 6.1% | 2026-Q2 |
| VANGUARD PORTFOLIO MANAGEMENT LLC trimmed | 3,521,381 | $456M | 5.1% | 2026-Q2 |
| HARRIS ASSOCIATES L P trimmed | 2,846,799 | $369M | 4.1% | 2026-Q2 |
| STATE STREET CORP trimmed | 2,808,781 | $364M | 4.1% | 2026-Q2 |
| GEODE CAPITAL MANAGEMENT, LLC added | 2,603,296 | $337M | 3.8% | 2026-Q2 |
| TWO SIGMA INVESTMENTS, LP added | 2,129,702 | $276M | 3.1% | 2026-Q2 |
| Invesco Ltd. added | 2,061,112 | $267M | 3.0% | 2026-Q2 |
| FEDERATED HERMES, INC. added | 2,044,435 | $265M | 3.0% | 2026-Q2 |
| MORGAN STANLEY trimmed | 1,867,660 | $242M | 2.7% | 2026-Q2 |
| GOLDMAN SACHS GROUP INC trimmed | 1,758,739 | $228M | 2.6% | 2026-Q2 |
| BANK OF AMERICA CORP /DE/ added | 907,735 | $118M | 1.3% | 2026-Q2 |
| NORGES BANK trimmed | 854,653 | $111M | 1.2% | 2026-Q2 |
| D. E. Shaw & Co., Inc. added | 804,821 | $104M | 1.2% | 2026-Q2 |
| BNP PARIBAS FINANCIAL MARKETS added | 673,933 | $87M | 1.0% | 2026-Q2 |
| NORTHERN TRUST CORP trimmed | 657,780 | $85M | 1.0% | 2026-Q2 |
| JANE STREET GROUP, LLC added | 596,327 | $77M | 0.9% | 2026-Q2 |
| CITADEL ADVISORS LLC added | 590,275 | $77M | 0.9% | 2026-Q2 |
| ARROWSTREET CAPITAL, LIMITED PARTNERSHIP added | 585,573 | $76M | 0.9% | 2026-Q2 |
| Madison Asset Management, LLC trimmed | 574,609 | $74M | 0.8% | 2026-Q2 |
| RENAISSANCE TECHNOLOGIES LLC added | 534,069 | $69M | 0.8% | 2026-Q2 |
| Black Creek Investment Management Inc. trimmed | 532,034 | $69M | 0.8% | 2026-Q2 |
| UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC trimmed | 510,785 | $66M | 0.7% | 2026-Q2 |
| JPMORGAN CHASE & CO trimmed | 504,967 | $67M | 0.8% | 2026-Q2 |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC added | 486,188 | $63M | 0.7% | 2026-Q2 |
| DIMENSIONAL FUND ADVISORS LP trimmed | 448,404 | $58M | 0.7% | 2026-Q2 |
| UBS Group AG trimmed | 440,241 | $57M | 0.6% | 2026-Q2 |
| MILLENNIUM MANAGEMENT LLC added | 409,564 | $53M | 0.6% | 2026-Q2 |
| Bank of New York Mellon Corp trimmed | 395,477 | $51M | 0.6% | 2026-Q2 |
| VANGUARD FIDUCIARY TRUST CO trimmed | 381,635 | $49M | 0.6% | 2026-Q2 |
| Diamond Hill Capital Management, LLC (Investment Advisor) added | 360,635 | $47M | 0.5% | 2026-Q2 |
| DISCIPLINED GROWTH INVESTORS INC /MN added | 344,687 | $45M | 0.5% | 2026-Q2 |
| FMR LLC trimmed | 315,238 | $41M | 0.5% | 2026-Q2 |
| BALYASNY ASSET MANAGEMENT L.P. added | 308,288 | $40M | 0.4% | 2026-Q2 |
| CITIGROUP INC trimmed | 302,731 | $39M | 0.4% | 2026-Q2 |
| ROYAL BANK OF CANADA added | 294,526 | $38M | 0.4% | 2026-Q2 |
| BARCLAYS PLC trimmed | 287,181 | $37M | 0.4% | 2026-Q2 |
| DEUTSCHE BANK AG\ trimmed | 285,847 | $37M | 0.4% | 2026-Q2 |
| Connor, Clark & Lunn Investment Management Ltd. added | 233,703 | $30M | 0.3% | 2026-Q2 |
| JONES FINANCIAL COMPANIES LLLP added | 232,126 | $31M | 0.4% | 2026-Q2 |
| Legal & General Group Plc trimmed | 216,379 | $28M | 0.3% | 2026-Q2 |
| Nuveen, LLC trimmed | 200,329 | $26M | 0.3% | 2026-Q2 |
| ENVESTNET ASSET MANAGEMENT INC added | 199,543 | $26M | 0.3% | 2026-Q2 |
| Gotham Asset Management, LLC trimmed | 198,904 | $26M | 0.3% | 2026-Q2 |
| Trexquant Investment LP added | 198,329 | $26M | 0.3% | 2026-Q2 |
| Clarkston Capital Partners, LLC trimmed | 197,571 | $26M | 0.3% | 2026-Q2 |
| WORLDQUANT MILLENNIUM ADVISORS LLC trimmed | 190,210 | $25M | 0.3% | 2026-Q2 |
| Douglas Lane & Associates, LLC trimmed | 186,744 | $24M | 0.3% | 2026-Q2 |
| Qube Research & Technologies Ltd trimmed | 180,641 | $23M | 0.3% | 2026-Q2 |
| TUDOR INVESTMENT CORP ET AL added | 176,035 | $23M | 0.3% | 2026-Q2 |
| SHAPIRO CAPITAL MANAGEMENT LLC added | 173,095 | $22M | 0.3% | 2026-Q2 |
| VANGUARD ASSET MANAGEMENT, Ltd added | 163,287 | $21M | 0.2% | 2026-Q2 |
| Quantum Capital Management, LLC / NJ added | 150,315 | $19M | 0.2% | 2026-Q2 |
| IEQ CAPITAL, LLC trimmed | 144,808 | $19M | 0.2% | 2026-Q2 |
| Vanguard Global Advisers, LLC trimmed | 144,200 | $19M | 0.2% | 2026-Q2 |
| OSSIAM trimmed | 137,782 | $18M | 0.2% | 2026-Q2 |
| Swiss National Bank trimmed | 132,231 | $17M | 0.2% | 2026-Q2 |
| RHUMBLINE ADVISERS trimmed | 132,165 | $17M | 0.2% | 2026-Q2 |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP added | 130,924 | $17M | 0.2% | 2026-Q2 |
| Mariner, LLC added | 127,622 | $17M | 0.2% | 2026-Q2 |
| Artisan Partners Limited Partnership trimmed | 127,015 | $16M | 0.2% | 2026-Q2 |
| Quantinno Capital Management LP trimmed | 126,327 | $16M | 0.2% | 2026-Q2 |
| WELLS FARGO & COMPANY/MN trimmed | 125,765 | $16M | 0.2% | 2026-Q2 |
| PRIMECAP MANAGEMENT CO/CA/ | 117,400 | $15M | 0.2% | 2026-Q2 |
| California Public Employees Retirement System trimmed | 113,013 | $15M | 0.2% | 2026-Q2 |
| Cerity Partners LLC added | 110,175 | $14M | 0.2% | 2026-Q2 |
| PRICE T ROWE ASSOCIATES INC /MD/ trimmed | 102,699 | $13M | 0.1% | 2026-Q2 |
| PRUDENTIAL FINANCIAL INC added | 102,658 | $13M | 0.1% | 2026-Q2 |
| HEALTHCARE OF ONTARIO PENSION PLAN TRUST FUND trimmed | 100,186 | $13M | 0.1% | 2026-Q2 |
| Squarepoint Ops LLC added | 99,367 | $13M | 0.1% | 2026-Q2 |
| HSBC HOLDINGS PLC trimmed | 98,605 | $13M | 0.1% | 2026-Q2 |
| Distillate Capital Partners LLC added | 96,994 | $13M | 0.1% | 2026-Q2 |
| BANK OF MONTREAL /CAN/ added | 96,241 | $12M | 0.1% | 2026-Q2 |
| Longaeva Partners L.P. new | 88,845 | $12M | 0.1% | 2026-Q2 |
| FRANKLIN RESOURCES INC trimmed | 86,249 | $11M | 0.1% | 2026-Q2 |
| Mitsubishi UFJ Asset Management Co., Ltd. trimmed | 85,909 | $11M | 0.1% | 2026-Q2 |
| PFA Pension, Forsikringsaktieselskab added | 85,905 | $11M | 0.1% | 2026-Q2 |
| Foyston, Gordon & Payne Inc added | 77,515 | $10M | 0.1% | 2026-Q2 |
| Allianz Asset Management GmbH | 76,904 | $12M | 0.1% | 2026-Q2 |
| CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM trimmed | 76,013 | $10M | 0.1% | 2026-Q2 |
| PRINCIPAL FINANCIAL GROUP INC trimmed | 74,420 | $10M | 0.1% | 2026-Q2 |
| Public Sector Pension Investment Board added | 74,111 | $10M | 0.1% | 2026-Q2 |
| Engineers Gate Manager LP added | 73,091 | $9M | 0.1% | 2026-Q2 |
| ALLIANCEBERNSTEIN L.P. trimmed | 71,548 | $11M | 0.1% | 2026-Q2 |
| AMERICAN CENTURY COMPANIES INC added | 71,084 | $9M | 0.1% | 2026-Q2 |
| Assenagon Asset Management S.A. added | 70,348 | $9M | 0.1% | 2026-Q2 |
| ISTHMUS PARTNERS, LLC trimmed | 67,111 | $9M | 0.1% | 2026-Q2 |
| Impax Asset Management Group plc added | 63,667 | $8M | 0.1% | 2026-Q2 |
| CANADA PENSION PLAN INVESTMENT BOARD added | 62,017 | $8M | 0.1% | 2026-Q2 |
| STATE BOARD OF ADMINISTRATION OF FLORIDA RETIREMENT SYSTEM trimmed | 59,336 | $8M | 0.1% | 2026-Q2 |
| Creative Planning added | 58,116 | $8M | 0.1% | 2026-Q2 |
| SCHWERIN BOYLE CAPITAL MANAGEMENT INC trimmed | 57,544 | $7M | 0.1% | 2026-Q2 |
| Aberdeen Group plc trimmed | 55,733 | $7M | 0.1% | 2026-Q2 |
| Russell Investments Group, Ltd. trimmed | 54,316 | $7M | 0.1% | 2026-Q2 |
| WEDGE CAPITAL MANAGEMENT L L P/NC added | 54,196 | $7M | 0.1% | 2026-Q2 |
| SEI INVESTMENTS CO added | 53,822 | $7M | 0.1% | 2026-Q2 |
| Jefferies Financial Group Inc. added | 53,796 | $7M | 0.1% | 2026-Q2 |
Ownership over time
Tracked institutional holder count and total shares held by filing quarter (independent scales). The curated-era tail and any mid-ingest latest quarter are handled honestly — a partial quarter is not drawn as a collapse.
Reading this table
Funds hold the same stock for different reasons — an index fund “holds” almost everything, an active manager sizes a name to a mandate and a benchmark, and each fund entered at its own price and time. Because 13F is filed up to 45 days after quarter-end, every row is a backward-looking snapshot; a manager may have traded since. Share-class siblings (a company’s A and C shares) are rolled up to one line so a dual-class name is never double-counted. Compare like-for-like. A large holder is not an endorsement, and a fund exiting is not a warning — this is a starting question, not a verdict.
About 13F filings
A Form 13F is a quarterly disclosure that institutional investment managers with over $100 million in US-listed equities must file with the SEC. In plain English: it is a snapshot of the long stock positions a fund held at the end of a quarter. It covers long US-listed equities only — not short positions, options, cash, or private holdings — and the funds shown are the large sample we track, not the complete 13F universe.