ESS Tech
51 hedge funds and large institutions have $8.9M invested in ESS Tech in 2026 Q1 according to their latest regulatory filings, with 10 funds opening new positions, 12 increasing their positions, 7 reducing their positions, and 12 closing their positions.
71% more repeat investments, than reductions
Existing positions increased: 12 | Existing positions reduced: 7
4.4% less ownership
Funds ownership: 32.4% → 28.01% (-4.4%)
7% less funds holding
Funds holding: 55 → 51 (-4)
17% less first-time investments, than exits
New positions opened: 10 | Existing positions closed: 12
26% less capital invested
Capital invested by funds: $11.9M → $8.9M (-$3.05M)
Top Buyers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
HCM
Heights Capital Management
San Francisco,
California
|
+$1.48M |
| 2 |
UBS Group
Zurich,
Switzerland
|
+$161K |
| 3 |
Geode Capital Management
Boston,
Massachusetts
|
+$134K |
| 4 |
GCP
GSA Capital Partners
London,
United Kingdom
|
+$109K |
| 5 |
Northern Trust
Chicago,
Illinois
|
+$32K |
Top Sellers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
Jane Street
New York
|
-$205K |
| 2 |
XT
XTX Topco
George Town,
Cayman Islands
|
-$93.3K |
| 3 |
JP Morgan Chase
New York
|
-$65.8K |
| 4 |
ACM
Arosa Capital Management
Miami Beach,
Florida
|
-$61.6K |
| 5 |
EGM
Engineers Gate Manager
New York
|
-$31K |
| Name | Holding | Trade Value |
Shares Change |
Change in Stake |
|
|---|---|---|---|---|---|
|
XT
51
XTX Topco
George Town,
Cayman Islands
| – | -$93.3K | -49,609 | Closed |
|
|
EGM
52
Engineers Gate Manager
New York
| – | -$31K | -16,498 | Closed |
|
53
Millennium Management
New York
| – | -$19K | -10,111 | Closed |
|
54
Bank of America
Charlotte,
North Carolina
| – | -$5.08K | -2,703 | Closed |
|
|
TRCT
55
Tower Research Capital (TRC)
New York
| – | -$4.69K | -2,494 | Closed |
|
56
PNC Financial Services Group
Pittsburgh,
Pennsylvania
| – | -$4.59K | -2,443 | Closed |
|
|
PA
57
Parallel Advisors
San Francisco,
California
| – | -$564 | -300 | Closed |
|
|
FFO
58
Fortitude Family Office
Scottsdale,
Arizona
| – | -$226 | -120 | Closed |
|
|
MCA
59
McGuire Capital Advisors
Bethany,
Oklahoma
| – | -$152 | -81 | Closed |
|
|
NL
60
Navalign LLC
Encino,
California
| – | -$24 | -13 | Closed |
|
|
TWC
61
TD Waterhouse Canada
Toronto,
Ontario, Canada
| – | -$24 | -13 | Closed |
|
62
Royal Bank of Canada
Toronto,
Ontario, Canada
| – | +$11 | +7 | +7% |
|
GWH Hedge Fund Activity: Q1 2026 in Review
51 of the 8,127 institutional investors tracked by Wall St. Rank reported a position in ESS Tech (GWH) for Q1 2026, worth a combined $8.9M — down 26% from $11.9M a quarter earlier.
Sellers outnumbered buyers: 12 funds closed out of GWH and 10 opened new positions — a net loss of 2 holders — while 7 trimmed existing stakes and 12 added.
The largest buyer was Heights Capital Management, opening a new position worth an estimated $1.48M. The largest seller was Jane Street, exiting entirely with an estimated $205K sold.
- 51 institutional investors held ESS Tech (GWH) as of Q1 2026, down from 55 in Q4 2025.
- Funds reported $8.9M of ESS Tech stock for Q1 2026, down 26% quarter-over-quarter.
- 10 funds opened new ESS Tech positions in Q1 2026 and 12 closed out, a net change of -2 holders.
- The largest ESS Tech buyer in Q1 2026 was Heights Capital Management, an estimated $1.48M added.
- The largest ESS Tech seller in Q1 2026 was Jane Street, an estimated $205K sold.
Based on aggregated 13F filings for Q1 2026.