MongoDB
694 hedge funds and large institutions have $14.5B invested in MongoDB in 2025 Q2 according to their latest regulatory filings, with 145 funds opening new positions, 256 increasing their positions, 229 reducing their positions, and 107 closing their positions.
36% more first-time investments, than exits
New positions opened: 145 | Existing positions closed: 107
33% more funds holding in top 10
Funds holding in top 10: 12 → 16 (+4)
12% more repeat investments, than reductions
Existing positions increased: 256 | Existing positions reduced: 229
5% more funds holding
Funds holding: 664 → 694 (+30)
1% less capital inflows, than outflows
Capital inflows: $2.66B | Capital outflows: $2.7B
1.17% less ownership
Funds ownership: 85.75% → 84.58% (-1.2%)
35% less call options, than puts
Call options by funds: $1.4B | Put options by funds: $2.16B
Top Buyers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
AQR Capital Management
Greenwich,
Connecticut
|
+$198M |
| 2 |
Morgan Stanley
New York
|
+$162M |
| 3 |
Vanguard Group
Malvern,
Pennsylvania
|
+$138M |
| 4 |
Fidelity International
Hamilton,
Bermuda
|
+$135M |
| 5 |
ValueAct Holdings
San Francisco,
California
|
+$128M |
Top Sellers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
JP Morgan Chase
New York
|
-$385M |
| 2 |
Wellington Management Group
Boston,
Massachusetts
|
-$245M |
| 3 |
BlackRock
New York
|
-$226M |
| 4 |
Franklin Resources
San Mateo,
California
|
-$100M |
| 5 |
Alyeska Investment Group
Chicago,
Illinois
|
-$85.1M |
MDB Hedge Fund Activity: Q2 2025 in Review
694 of the 7,621 institutional investors tracked by Wall St. Rank reported a position in MongoDB (MDB) for Q2 2025, worth a combined $14.5B — up 19% from $12.2B a quarter earlier.
Buyers outnumbered sellers: 145 funds opened new MDB positions and 107 closed out — a net gain of 38 holders — while 256 added to existing stakes and 229 trimmed.
The largest buyer was AQR Capital Management, adding an estimated $198M. The largest seller was JP Morgan Chase, cutting an estimated $385M.
- 694 institutional investors held MongoDB (MDB) as of Q2 2025, up from 664 in Q1 2025.
- Funds reported $14.5B of MongoDB stock for Q2 2025, up 19% quarter-over-quarter.
- 145 funds opened new MongoDB positions in Q2 2025 and 107 closed out, a net change of +38 holders.
- The largest MongoDB buyer in Q2 2025 was AQR Capital Management, an estimated $198M added.
- The largest MongoDB seller in Q2 2025 was JP Morgan Chase, an estimated $385M sold.
Based on aggregated 13F filings for Q2 2025.