MongoDB
815 hedge funds and large institutions have $17.5B invested in MongoDB in 2026 Q1 according to their latest regulatory filings, with 123 funds opening new positions, 339 increasing their positions, 244 reducing their positions, and 208 closing their positions.
39% more repeat investments, than reductions
Existing positions increased: 339 | Existing positions reduced: 244
32% more call options, than puts
Call options by funds: $1.55B | Put options by funds: $1.17B
0.47% less ownership
Funds ownership: 89.27% → 88.8% (-0.47%)
11% less funds holding
Funds holding: 915 → 815 (-100)
41% less first-time investments, than exits
New positions opened: 123 | Existing positions closed: 208
43% less capital invested
Capital invested by funds: $30.5B → $17.5B (-$13B)
73% less funds holding in top 10
Funds holding in top 10: 22 → 6 (-16)
Top Buyers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
Artisan Partners
Milwaukee,
Wisconsin
|
+$267M |
| 2 |
DZ Bank
Frankfurt Am Main,
Germany
|
+$256M |
| 3 |
AQR Capital Management
Greenwich,
Connecticut
|
+$246M |
| 4 |
Wellington Management Group
Boston,
Massachusetts
|
+$229M |
| 5 |
Neuberger Berman Group
New York
|
+$133M |
Top Sellers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
Arrowstreet Capital
Boston,
Massachusetts
|
-$222M |
| 2 |
Marshall Wace
London,
United Kingdom
|
-$201M |
| 3 |
D.E. Shaw & Co
New York
|
-$176M |
| 4 |
1832 Asset Management
Toronto,
Ontario, Canada
|
-$126M |
| 5 |
WRCM
Whale Rock Capital Management
Boston,
Massachusetts
|
-$126M |
MDB Hedge Fund Activity: Q1 2026 in Review
815 of the 8,182 institutional investors tracked by Wall St. Rank reported a position in MongoDB (MDB) for Q1 2026, worth a combined $17.5B — down 43% from $30.5B a quarter earlier.
Sellers outnumbered buyers: 208 funds closed out of MDB and 123 opened new positions — a net loss of 85 holders — while 244 trimmed existing stakes and 339 added.
The largest buyer was Artisan Partners, adding an estimated $267M. The largest seller was Arrowstreet Capital, cutting an estimated $222M.
- 815 institutional investors held MongoDB (MDB) as of Q1 2026, down from 915 in Q4 2025.
- Funds reported $17.5B of MongoDB stock for Q1 2026, down 43% quarter-over-quarter.
- 123 funds opened new MongoDB positions in Q1 2026 and 208 closed out, a net change of -85 holders.
- The largest MongoDB buyer in Q1 2026 was Artisan Partners, an estimated $267M added.
- The largest MongoDB seller in Q1 2026 was Arrowstreet Capital, an estimated $222M sold.
Based on aggregated 13F filings for Q1 2026.