MDB Institutional Ownership
Who owns MongoDB, Inc. and what the big funds did with it last quarter, from every SEC 13F filing. 873 funds reported holding MDB at Jun 30, 2026, together owning 92.6% of the company.
- ▲483 buying vs 381 selling
- ▲Held by funds +3.9 pts
- ▲Funds holding +52
- ▼Superinvestors: 0 added, 6 cut
- ▲Put/call 0.94 to 0.54
What the filings show, not a forecast. Positions can be up to 45 days old and leave out short sales.
Funds holding and ownership
8 quartersQuarter over quarter
all 13F filers| Q2 2026 | This quarter | Q1 2026 | Change |
|---|---|---|---|
| Funds holding | 873 | 821 | +6.3% |
| In funds' top 10 | 4 | 6 | −33.3% |
| 13F shares | 74.6M | 71.4M | +4.4% |
| Held by funds | 92.6% | 88.7% | +3.9 pts |
| New positions | 157 | 110 | +42.7% |
| Increased | 326 | 337 | −3.3% |
| Reduced | 273 | 243 | +12.3% |
| Sold out | 108 | 208 | −48.1% |
| Calls (shares) | 1.6M | 842K | +94.4% |
| Puts (shares) | 881K | 797K | +10.6% |
| Put/call ratio | 0.54 | 0.94 | −42.3% |
Buyers vs sellers
adding or new vs cutting or sold outSuperinvestors in MDB
All superinvestors →
Who owns MDB
share of fund held shares- Index and passive funds29.4%
- Active managers and hedge funds47.9%
- Banks and brokers16.7%
- Pensions, insurers and other6.0%
The top 10 holders own 38.8% of all MDB shares that funds reported. Groups are our own grouping of filers by name.
Put/call ratio
funds' options, market makers left outAbove 1 means funds hold more puts than calls, a sign of hedging or bets on a fall. Options are valued at the underlying shares.
Filed so far for Q3 2026
280 funds changed their position- Harel Insurance Investments & Financial Services Ltd.Added+219K sh
- Swedbank ABTrimmed−155K sh
- Artemis Investment Management LLPTrimmed−134K sh
- Assenagon Asset Management S.A.Trimmed−87K sh
- DekaBank Deutsche GirozentraleAdded+77K sh
🔒 Free account: see all 20.
Top holders
Q2 2026| # | Fund | Of company | Shares | Value | Change |
|---|---|---|---|---|---|
| 1 | BlackRock, Inc. | 7.87% | 6.3M | $2.1B | +617K |
| 2 | Vanguard Portfolio Management LLC | 5.56% | 4.5M | $1.5B | −23K |
| 3 | Fmr LLC | 4.54% | 3.7M | $1.2B | +1.5M |
| 4 | Vanguard Capital Management LLC | 4.35% | 3.5M | $1.2B | −18K |
| 5 | DZ BANK AG Deutsche Zentral Genossenschafts Bank, Frankfurt | 3.12% | 2.5M | $845M | +562K |
| 6 | Price T Rowe Associates Inc /md/ | 2.58% | 2.1M | $697M | −18K |
| 7 | State Street Corp | 2.40% | 1.9M | $650M | +90K |
| 8 | Geode Capital Management, LLC | 1.93% | 1.6M | $521M | +27K |
| 9 | AQR Capital Management LLC | 1.87% | 1.5M | $505M | +192K |
| 10 | Norges Bank | 1.74% | 1.4M | $472M | +1.4M |
- Fmr LLC+1.5M sh+$493M
- Norges Bank+1.4M sh+$472M
- BlackRock, Inc.+617K sh+$207M
- FIL Ltd+594K sh+$199M
- DZ BANK AG Deutsche Zentral Genossenschafts Bank, Frankfurt+562K sh+$189M
- Voya Investment Management LLC+525K sh+$176M
- Kinetic Partners Management, LP+380K sh+$128M
- Massachusetts Financial Services Co /ma/+372K sh+$126M
- ValueAct Holdings, L.P.−872K sh−$293M
- Artisan Partners Limited Partnership−833K sh−$280M
- Jericho Capital Asset Management L.P.−997K sh−$244M
- Arrowstreet Capital, Limited Partnership−568K sh−$191M
- Citadel Advisors LLC−423K sh−$142M
- Point72 Asset Management, L.P.−419K sh−$141M
- Federated Hermes, Inc.−387K sh−$130M
- Jpmorgan Chase & Co−340K sh−$115M
MDB institutional ownership FAQ
Who owns the most MDB stock?
In Q2 2026 13F filings the largest holder of MDB was BlackRock, Inc., followed by Vanguard Portfolio Management LLC and Fmr LLC. Index fund managers are usually the biggest holders of large companies.
What percentage of MDB is owned by institutions?
Funds that file 13F reports held 92.6% of MDB's shares at Jun 30, 2026, compared with 88.7% a quarter earlier. That counts every manager with more than $100 million in US stocks.
Are hedge funds buying MDB?
In Q2 2026, 483 funds bought MDB (157 of them new positions) and 381 sold (108 sold out completely). Among well known investors, 0 added and 6 cut. Our fund sentiment for MDB is bullish.
What is MDB's institutional put/call ratio?
Funds reported $297M of MDB puts against $546M of calls, a put/call ratio of 0.54 (0.94 the quarter before). Market makers and bank trading desks are left out, since their options are mostly hedges.
How current is this MDB ownership data?
13F filings show holdings at the end of each quarter and are due within 45 days, so positions can be up to six weeks old when they appear. We add each new filing within minutes, and the "filed so far" list shows funds that have already reported the next quarter.
For informational and educational purposes only. Not investment advice, and not a recommendation to buy or sell any security. Fund sentiment summarises what 13F filings show and is not a forecast. Holdings come from SEC Form 13F filings as reported and show positions at the end of the quarter, up to 45 days before the filing. A 13F leaves out short positions, cash, bonds and most foreign holdings. See all hedge fund holdings.