MongoDB
915 hedge funds and large institutions have $30.5B invested in MongoDB in 2025 Q4 according to their latest regulatory filings, with 238 funds opening new positions, 311 increasing their positions, 272 reducing their positions, and 83 closing their positions.
187% more first-time investments, than exits
New positions opened: 238 | Existing positions closed: 83
38% more funds holding in top 10
Funds holding in top 10: 16 → 22 (+6)
34% more capital invested
Capital invested by funds: $22.7B → $30.5B (+$7.76B)
18% more funds holding
Funds holding: 778 → 915 (+137)
14% more repeat investments, than reductions
Existing positions increased: 311 | Existing positions reduced: 272
5% less call options, than puts
Call options by funds: $2.76B | Put options by funds: $2.92B
1.92% less ownership
Funds ownership: 91.19% → 89.27% (-1.9%)
Top Buyers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
DZ Bank
Frankfurt Am Main,
Germany
|
+$300M |
| 2 |
BlackRock
New York
|
+$291M |
| 3 |
Massachusetts Financial Services
Boston,
Massachusetts
|
+$224M |
| 4 |
Capital World Investors
Los Angeles,
California
|
+$201M |
| 5 |
Fidelity Investments
Boston,
Massachusetts
|
+$144M |
Top Sellers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
Morgan Stanley
New York
|
-$487M |
| 2 |
Amundi
Paris,
France
|
-$423M |
| 3 |
Fidelity International
Hamilton,
Bermuda
|
-$259M |
| 4 |
VH
ValueAct Holdings
San Francisco,
California
|
-$259M |
| 5 |
Point72 Asset Management
Stamford,
Connecticut
|
-$225M |
MDB Hedge Fund Activity: Q4 2025 in Review
915 institutional investors reported a position in MongoDB (MDB) for Q4 2025, worth a combined $30.5B — up 34% from $22.7B a quarter earlier.
Buyers outnumbered sellers: 238 funds opened new MDB positions and 83 closed out — a net gain of 155 holders — while 311 added to existing stakes and 272 trimmed.
The largest buyer was DZ Bank, adding an estimated $300M. The largest seller was Morgan Stanley, cutting an estimated $487M.
- 915 institutional investors held MongoDB (MDB) as of Q4 2025, up from 778 in Q3 2025.
- Funds reported $30.5B of MongoDB stock for Q4 2025, up 34% quarter-over-quarter.
- 238 funds opened new MongoDB positions in Q4 2025 and 83 closed out, a net change of +155 holders.
- The largest MongoDB buyer in Q4 2025 was DZ Bank, an estimated $300M added.
- The largest MongoDB seller in Q4 2025 was Morgan Stanley, an estimated $487M sold.
Based on aggregated 13F filings for Q4 2025.