MongoDB
778 hedge funds and large institutions have $22.7B invested in MongoDB in 2025 Q3 according to their latest regulatory filings, with 190 funds opening new positions, 249 increasing their positions, 250 reducing their positions, and 97 closing their positions.
96% more first-time investments, than exits
New positions opened: 190 | Existing positions closed: 97
39% more capital inflows, than outflows
Capital inflows: $5.13B | Capital outflows: $3.69B
12% more funds holding
Funds holding: 694 → 778 (+84)
6.61% more ownership
Funds ownership: 84.58% → 91.19% (+6.6%)
0% more funds holding in top 10
Funds holding in top 10: 16 → 16 (0)
0% less repeat investments, than reductions
Existing positions increased: 249 | Existing positions reduced: 250
26% less call options, than puts
Call options by funds: $2.63B | Put options by funds: $3.56B
Top Buyers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
T. Rowe Price Associates
Baltimore,
Maryland
|
+$473M |
| 2 |
VH
ValueAct Holdings
San Francisco,
California
|
+$367M |
| 3 |
Fidelity Investments
Boston,
Massachusetts
|
+$254M |
| 4 |
Morgan Stanley
New York
|
+$240M |
| 5 |
JCAM
Jericho Capital Asset Management
New York
|
+$219M |
Top Sellers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
Fidelity International
Hamilton,
Bermuda
|
-$301M |
| 2 |
SIM
SRS Investment Management
New York
|
-$220M |
| 3 |
Bank of America
Charlotte,
North Carolina
|
-$206M |
| 4 |
Point72 Asset Management
Stamford,
Connecticut
|
-$155M |
| 5 |
Assenagon Asset Management
Senningerberg,
Luxembourg
|
-$149M |
MDB Hedge Fund Activity: Q3 2025 in Review
778 of the 7,647 institutional investors tracked by Wall St. Rank reported a position in MongoDB (MDB) for Q3 2025, worth a combined $22.7B — up 57% from $14.5B a quarter earlier.
Buyers outnumbered sellers: 190 funds opened new MDB positions and 97 closed out — a net gain of 93 holders — while 249 added to existing stakes and 250 trimmed.
The largest buyer was T. Rowe Price Associates, adding an estimated $473M. The largest seller was Fidelity International, cutting an estimated $301M.
- 778 institutional investors held MongoDB (MDB) as of Q3 2025, up from 694 in Q2 2025.
- Funds reported $22.7B of MongoDB stock for Q3 2025, up 57% quarter-over-quarter.
- 190 funds opened new MongoDB positions in Q3 2025 and 97 closed out, a net change of +93 holders.
- The largest MongoDB buyer in Q3 2025 was T. Rowe Price Associates, an estimated $473M added.
- The largest MongoDB seller in Q3 2025 was Fidelity International, an estimated $301M sold.
Based on aggregated 13F filings for Q3 2025.