Stem
STEM
75 hedge funds and large institutions have $17.4M invested in Stem in 2026 Q1 according to their latest regulatory filings, with 12 funds opening new positions, 16 increasing their positions, 21 reducing their positions, and 20 closing their positions.
56% more call options, than puts
Call options by funds: $1.68M | Put options by funds: $1.07M
0.97% more ownership
Funds ownership: 22.09% → 23.06% (+0.97%)
0% more funds holding in top 10
Funds holding in top 10: 1 → 1 (0)
13% less funds holding
Funds holding: 86 → 75 (-11)
24% less repeat investments, than reductions
Existing positions increased: 16 | Existing positions reduced: 21
38% less capital invested
Capital invested by funds: $27.9M → $17.4M (-$10.5M)
40% less first-time investments, than exits
New positions opened: 12 | Existing positions closed: 20
Top Buyers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
Marshall Wace
London,
United Kingdom
|
+$1.67M |
| 2 |
Two Sigma Investments
New York
|
+$1.21M |
| 3 |
TI
Trexquant Investment
Stamford,
Connecticut
|
+$888K |
| 4 |
Renaissance Technologies
New York
|
+$636K |
| 5 |
BNP Paribas Financial Markets
Paris,
France
|
+$453K |
Top Sellers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
Susquehanna International Group
Bala Cynwyd,
Pennsylvania
|
-$1.12M |
| 2 |
Goldman Sachs
New York
|
-$538K |
| 3 |
JF
Jump Financial
Chicago,
Illinois
|
-$534K |
| 4 |
Millennium Management
New York
|
-$496K |
| 5 |
DnB Asset Management
Oslo,
Norway
|
-$489K |
STEM Hedge Fund Activity: Q1 2026 in Review
75 of the 8,191 institutional investors tracked by Wall St. Rank reported a position in Stem (STEM) for Q1 2026, worth a combined $17.4M — down 38% from $27.9M a quarter earlier.
Sellers outnumbered buyers: 20 funds closed out of STEM and 12 opened new positions — a net loss of 8 holders — while 21 trimmed existing stakes and 16 added.
The largest buyer was Marshall Wace, adding an estimated $1.67M. The largest seller was Susquehanna International Group, exiting entirely with an estimated $1.12M sold.
- 75 institutional investors held Stem (STEM) as of Q1 2026, down from 86 in Q4 2025.
- Funds reported $17.4M of Stem stock for Q1 2026, down 38% quarter-over-quarter.
- 12 funds opened new Stem positions in Q1 2026 and 20 closed out, a net change of -8 holders.
- The largest Stem buyer in Q1 2026 was Marshall Wace, an estimated $1.67M added.
- The largest Stem seller in Q1 2026 was Susquehanna International Group, an estimated $1.12M sold.
Based on aggregated 13F filings for Q1 2026.