ESS Tech
55 hedge funds and large institutions have $11.9M invested in ESS Tech in 2025 Q4 according to their latest regulatory filings, with 18 funds opening new positions, 16 increasing their positions, 5 reducing their positions, and 9 closing their positions.
220% more repeat investments, than reductions
Existing positions increased: 16 | Existing positions reduced: 5
110% more capital invested
Capital invested by funds: $5.69M → $11.9M (+$6.26M)
100% more first-time investments, than exits
New positions opened: 18 | Existing positions closed: 9
20% more funds holding
Funds holding: 46 → 55 (+9)
6.66% more ownership
Funds ownership: 25.74% → 32.4% (+6.7%)
Top Buyers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
Alyeska Investment Group
Chicago,
Illinois
|
+$4.45M |
| 2 |
ACM
Arosa Capital Management
Miami Beach,
Florida
|
+$873K |
| 3 |
Vanguard Group
Malvern,
Pennsylvania
|
+$705K |
| 4 |
SC
Shay Capital
New York
|
+$573K |
| 5 |
GAA
Green Alpha Advisors
Niwot,
Colorado
|
+$344K |
Top Sellers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
YAG
Yorkville Advisors Global
Mountainside,
New Jersey
|
-$73.5K |
| 2 |
Renaissance Technologies
New York
|
-$41.9K |
| 3 |
Citadel Advisors
Miami,
Florida
|
-$30.1K |
| 4 |
Morgan Stanley
New York
|
-$9.96K |
| 5 |
BlackRock
New York
|
-$8.84K |
GWH Hedge Fund Activity: Q4 2025 in Review
55 of the 8,223 institutional investors tracked by Wall St. Rank reported a position in ESS Tech (GWH) for Q4 2025, worth a combined $11.9M — up 110% from $5.69M a quarter earlier.
Buyers outnumbered sellers: 18 funds opened new GWH positions and 9 closed out — a net gain of 9 holders — while 16 added to existing stakes and 5 trimmed.
The largest buyer was Alyeska Investment Group, opening a new position worth an estimated $4.45M. The largest seller was Yorkville Advisors Global, exiting entirely with an estimated $73.5K sold.
- 55 institutional investors held ESS Tech (GWH) as of Q4 2025, up from 46 in Q3 2025.
- Funds reported $11.9M of ESS Tech stock for Q4 2025, up 110% quarter-over-quarter.
- 18 funds opened new ESS Tech positions in Q4 2025 and 9 closed out, a net change of +9 holders.
- The largest ESS Tech buyer in Q4 2025 was Alyeska Investment Group, an estimated $4.45M added.
- The largest ESS Tech seller in Q4 2025 was Yorkville Advisors Global, an estimated $73.5K sold.
Based on aggregated 13F filings for Q4 2025.