Stem
STEM
85 hedge funds and large institutions have $34.4M invested in Stem in 2025 Q3 according to their latest regulatory filings, with 24 funds opening new positions, 20 increasing their positions, 20 reducing their positions, and 20 closing their positions.
242% more capital invested
Capital invested by funds: $10.1M → $34.4M (+$24.3M)
97% more call options, than puts
Call options by funds: $20.6M | Put options by funds: $10.4M
22.76% more ownership
Funds ownership: 0.65% → 23.41% (+23%)
20% more first-time investments, than exits
New positions opened: 24 | Existing positions closed: 20
5% more funds holding
Funds holding: 81 → 85 (+4)
0% more repeat investments, than reductions
Existing positions increased: 20 | Existing positions reduced: 20
Top Buyers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
Marshall Wace
London,
United Kingdom
|
+$3.02M |
| 2 |
Bank of America
Charlotte,
North Carolina
|
+$1.57M |
| 3 |
Two Sigma Investments
New York
|
+$1.09M |
| 4 |
Point72 Asset Management
Stamford,
Connecticut
|
+$740K |
| 5 |
Citadel Advisors
Miami,
Florida
|
+$627K |
Top Sellers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
Jane Street
New York
|
-$620K |
| 2 |
BlackRock
New York
|
-$543K |
| 3 |
Millennium Management
New York
|
-$535K |
| 4 |
Citigroup
New York
|
-$352K |
| 5 |
AQR Capital Management
Greenwich,
Connecticut
|
-$302K |
STEM Hedge Fund Activity: Q3 2025 in Review
85 of the 7,621 institutional investors tracked by Wall St. Rank reported a position in Stem (STEM) for Q3 2025, worth a combined $34.4M — up 242% from $10.1M a quarter earlier.
Buyers outnumbered sellers: 24 funds opened new STEM positions and 20 closed out — a net gain of 4 holders — while 20 added to existing stakes and 20 trimmed.
The largest buyer was Marshall Wace, adding an estimated $3.02M. The largest seller was Jane Street, exiting entirely with an estimated $620K sold.
- 85 institutional investors held Stem (STEM) as of Q3 2025, up from 81 in Q2 2025.
- Funds reported $34.4M of Stem stock for Q3 2025, up 242% quarter-over-quarter.
- 24 funds opened new Stem positions in Q3 2025 and 20 closed out, a net change of +4 holders.
- The largest Stem buyer in Q3 2025 was Marshall Wace, an estimated $3.02M added.
- The largest Stem seller in Q3 2025 was Jane Street, an estimated $620K sold.
Based on aggregated 13F filings for Q3 2025.