MDB MongoDB, Inc.
MongoDB, Inc. (MDB) Institutional Ownership
What the institutions did with MDB last quarter, from their 13F filings. Counting managers rather than shares is the point: a single index fund adding to a position tells you far less than four hundred separate managers all deciding to. Positions as reported for the quarter ended June 30, 2026.
Every manager below opens. Subscribers can see any firm's whole portfolio — every position, its weight, and what they bought, trimmed and exited last quarter.
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Each block is one manager, sized by shares held and colored by how much they moved the position last quarter. Green added, red cut, grey stood pat.
Largest holders
| Manager | Shares | % of reported |
|---|---|---|
| BlackRock, Inc. | 6.3M | 8.5% |
| VANGUARD PORTFOLIO MANAGEMENT LLC | 4.5M | 6.0% |
| FMR LLC | 3.7M | 4.9% |
| VANGUARD CAPITAL MANAGEMENT LLC | 3.5M | 4.7% |
| DZ BANK AG Deutsche Zentral Genossenschafts Bank, Frankfurt am Main | 2.5M | 3.4% |
| PRICE T ROWE ASSOCIATES INC /MD/ | 2.1M | 2.8% |
| STATE STREET CORP | 1.9M | 2.6% |
| GEODE CAPITAL MANAGEMENT, LLC | 1.6M | 2.1% |
| AQR CAPITAL MANAGEMENT LLC | 1.5M | 2.0% |
| NORGES BANK | 1.4M | 1.9% |
| MASSACHUSETTS FINANCIAL SERVICES CO /MA/ | 1.3M | 1.7% |
| UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC | 1.2M | 1.6% |
| FIL Ltd | 1.1M | 1.4% |
| Invesco Ltd. | 1.0M | 1.4% |
| MORGAN STANLEY | 1.0M | 1.4% |
| Capital World Investors | 1.0M | 1.4% |
| VOYA INVESTMENT MANAGEMENT LLC | 873.3K | 1.2% |
| PRIMECAP MANAGEMENT CO/CA/ | 846.0K | 1.1% |
| Harel Insurance Investments & Financial Services Ltd. | 739.5K | 1.0% |
| SRS Investment Management, LLC | 738.6K | 1.0% |
| D. E. Shaw & Co., Inc. | 710.2K | 1.0% |
| JPMORGAN CHASE & CO | 694.0K | 0.9% |
| Polar Capital Holdings Plc | 689.1K | 0.9% |
| Nuveen, LLC | 667.2K | 0.9% |
| T. Rowe Price Investment Management, Inc. | 600.0K | 0.8% |
Largest changes
| Manager | Action | Previous | Current | Change |
|---|---|---|---|---|
| FMR LLC | Increased | 2.2M | 3.7M | +1.5M |
| Jericho Capital Asset Management L.P. | Sold Out | 996.5K | 0 | -996.5K |
| ValueAct Holdings, L.P. | Reduced | 1.0M | 165.7K | -872.1K |
| Artisan Partners Limited Partnership | Reduced | 1.2M | 394.2K | -833.0K |
| BlackRock, Inc. | Increased | 5.7M | 6.3M | +617.0K |
| FIL Ltd | Increased | 464.4K | 1.1M | +593.5K |
| ARROWSTREET CAPITAL, LIMITED PARTNERSHIP | Reduced | 672.2K | 104.7K | -567.6K |
| DZ BANK AG Deutsche Zentral Genossenschafts Bank, Frankfurt am Main | Increased | 2.0M | 2.5M | +561.8K |
| VOYA INVESTMENT MANAGEMENT LLC | Increased | 348.6K | 873.3K | +524.7K |
| CITADEL ADVISORS LLC | Reduced | 557.1K | 134.2K | -422.9K |
| Point72 Asset Management, L.P. | Reduced | 474.4K | 55.8K | -418.6K |
| FEDERATED HERMES, INC. | Reduced | 524.3K | 137.7K | -386.6K |
| Kinetic Partners Management, LP | Increased | 37.2K | 417.6K | +380.4K |
| MASSACHUSETTS FINANCIAL SERVICES CO /MA/ | Increased | 891.7K | 1.3M | +371.9K |
| Nuveen, LLC | Increased | 304.3K | 667.2K | +362.9K |
| Polar Capital Holdings Plc | Increased | 330.8K | 689.1K | +358.3K |
| JPMORGAN CHASE & CO | Reduced | 1.0M | 694.0K | -339.8K |
| WELLINGTON MANAGEMENT GROUP LLP | Reduced | 904.6K | 565.6K | -339.1K |
| Robeco Institutional Asset Management B.V. | Reduced | 468.5K | 142.0K | -326.5K |
| LOS ANGELES CAPITAL MANAGEMENT LLC | Increased | 646 | 323.6K | +323.0K |
| Artemis Investment Management LLP | New | 0 | 318.5K | +318.5K |
| Alyeska Investment Group, L.P. | New | 0 | 307.6K | +307.6K |
| TWO SIGMA INVESTMENTS, LP | Reduced | 287.2K | 38.1K | -249.1K |
| ROYAL BANK OF CANADA | Increased | 261.9K | 500.5K | +238.6K |
| D. E. Shaw & Co., Inc. | Reduced | 931.6K | 710.2K | -221.4K |
| SRS Investment Management, LLC | Increased | 526.9K | 738.6K | +211.7K |
| CONGRESS ASSET MANAGEMENT CO | Increased | 301.9K | 511.2K | +209.3K |
| Avala Global LP | Reduced | 269.1K | 60.2K | -208.9K |
| FRED ALGER MANAGEMENT, LLC | Reduced | 438.6K | 232.7K | -205.9K |
| MORGAN STANLEY | Reduced | 1.2M | 1.0M | -200.3K |
| AQR CAPITAL MANAGEMENT LLC | Increased | 1.3M | 1.5M | +191.6K |
| Harel Insurance Investments & Financial Services Ltd. | Increased | 550.0K | 739.5K | +189.5K |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | Increased | 58.9K | 235.8K | +176.8K |
| SEI INVESTMENTS CO | Reduced | 367.7K | 191.5K | -176.2K |
| JONES FINANCIAL COMPANIES LLLP | Increased | 54.1K | 222.3K | +168.3K |
| SOMA EQUITY PARTNERS LP | New | 0 | 159.0K | +159.0K |
| WORLDQUANT MILLENNIUM ADVISORS LLC | Reduced | 170.1K | 11.7K | -158.5K |
| NEUBERGER BERMAN GROUP LLC | Reduced | 474.5K | 322.3K | -152.2K |
| Assenagon Asset Management S.A. | Increased | 106.8K | 256.2K | +149.4K |
| Champlain Investment Partners, LLC | Reduced | 223.1K | 76.6K | -146.5K |
| NATIXIS ADVISORS, LLC | Increased | 47.5K | 193.2K | +145.7K |
| RENAISSANCE TECHNOLOGIES LLC | Sold Out | 140.8K | 0 | -140.8K |
| LMR Partners LLP | New | 0 | 135.3K | +135.3K |
| Invesco Ltd. | Increased | 903.9K | 1.0M | +127.6K |
| Capital Impact Advisors, LLC | Increased | 22.9K | 147.9K | +125.0K |
| FRONTIER CAPITAL MANAGEMENT CO LLC | Increased | 214.3K | 334.1K | +119.8K |
| Migdal Insurance & Financial Holdings Ltd. | New | 0 | 119.0K | +119.0K |
| Ardmore Road Asset Management LP | New | 0 | 114.0K | +114.0K |
| AMERIPRISE FINANCIAL INC | Increased | 152.5K | 266.3K | +113.8K |
| 1832 Asset Management L.P. | Reduced | 377.0K | 269.3K | -107.7K |
| Lead Edge Capital Management, LLC | Reduced | 170.4K | 64.7K | -105.7K |
| Eurizon Capital SGR S.p.A. | Increased | 212.9K | 317.9K | +105.0K |
| MILLENNIUM MANAGEMENT LLC | Reduced | 399.3K | 296.1K | -103.2K |
| Marex Group plc | Increased | 1.1K | 101.5K | +100.4K |
| TRUIST FINANCIAL CORP | Increased | 11.8K | 111.9K | +100.1K |
| CI INVESTMENTS INC. | Reduced | 213.6K | 115.6K | -98.0K |
| Penserra Capital Management LLC | Increased | 100.9K | 198.3K | +97.5K |
| NOMURA ASSET MANAGEMENT CO LTD | Increased | 171.7K | 265.9K | +94.2K |
| Defiance ETFs, LLC | Increased | 98.7K | 191.3K | +92.6K |
| STATE STREET CORP | Increased | 1.8M | 1.9M | +89.9K |
13F filings are due 45 days after quarter end and cover long positions in U.S.-listed equities only, so this is a lagged and partial picture: shorts, bonds and foreign listings never appear. Options positions are excluded here rather than folded into the share counts. Political ownership is coming.