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ESS Tech
GWH

45 hedge funds and large institutions have $11M invested in ESS Tech in 2025 Q1 according to their latest regulatory filings, with 2 funds opening new positions, 3 increasing their positions, 13 reducing their positions, and 12 closing their positions.

New
Increased
Maintained
Reduced
Closed

0.96% less ownership

Funds ownership: 29.3% → 28.35% (-0.96%)

20% less funds holding

Funds holding: 56 → 45 (-11)

46% less capital invested

Capital invested by funds: $20.5M → $11M (-$9.49M)

77% less repeat investments, than reductions

Existing positions increased: 3 | Existing positions reduced: 13

83% less first-time investments, than exits

New positions opened: 2 | Existing positions closed: 12

Holders
45
Holders Change
-11
Holders Change %
-19.64%
% of All Funds
0.6%
Holding in Top 10
–
Holding in Top 10 Change
–
Holding in Top 10 Change %
–
% of All Funds
–
New
2
Increased
3
Reduced
13
Closed
12
Calls
–
Puts
–
Net Calls
–
Net Calls Change
–

Top Buyers

Rank Fund Capital Flow
1
Vanguard Group
Vanguard Group
Pennsylvania
+$138K
2
PA
Parallel Advisors
California
+$26.5K
3
Geode Capital Management
Geode Capital Management
Massachusetts
+$10.5K
4
Morgan Stanley
Morgan Stanley
New York
+$3.53K
5
CCM
Coldstream Capital Management
Washington
+$3.18K

Top Sellers

Rank Fund Capital Flow
1
Baird Financial Group
Baird Financial Group
Wisconsin
-$175K
2
Jane Street
Jane Street
New York
-$170K
3
GCP
GSA Capital Partners
United Kingdom
-$122K
4
Pathstone Holdings
Pathstone Holdings
New Jersey
-$95K
5
Millennium Management
Millennium Management
New York
-$71K
Name Holding Trade Value Shares
Change 		Change in
Stake
Group One Trading
26
Group One Trading
Illinois
$1.31K -$55 -12 -3%
MTIC
27
Missouri Trust & Investment Company
Missouri
$1.09K – – –
PS
28
Principal Securities
Iowa
$1.01K – – –
PFBT
29
Parkside Financial Bank & Trust
Missouri
$760 – – –
JP Morgan Chase
30
JP Morgan Chase
New York
$509 – – –
AF
31
Allworth Financial
California
$379 -$68 -15 -8%
SS
32
SBI Securities
Japan
$280 -$277 -61 -41%
NA
33
NewEdge Advisors
Louisiana
$234 – – –
AIC
34
Archer Investment Corporation
Indiana
$222 – – –
WWM
35
Wolff Wiese Magana
California
$216 – – –
FFA
36
Farther Finance Advisors
California
$188 – – –
HIA
37
Harbor Investment Advisory
Maryland
$108 – – –
MG
38
Mather Group
Illinois
$65 – – –
NC
39
NewSquare Capital
Pennsylvania
$65 – – –
Jones Financial Companies
40
Jones Financial Companies
Missouri
$44 – – –
AFG
41
Albion Financial Group
Utah
$43 – – –
CCMI
42
Creative Capital Management Investments
California
$42 – – –
CA
43
CoreCap Advisors
Michigan
$20 – – –
Northwestern Mutual Wealth Management
44
Northwestern Mutual Wealth Management
Wisconsin
$16 -$159 -35 -88%
Jane Street
45
Jane Street
New York
– -$170K -28,995 Closed
Pathstone Holdings
46
Pathstone Holdings
New Jersey
– -$95K -16,164 Closed
SPIA
47
Steward Partners Investment Advisory
New York
– -$16.6K -2,825 Closed
TRCT
48
Tower Research Capital (TRC)
New York
– -$6.67K -1,135 Closed
DF
49
Dunhill Financial
United Kingdom
– -$3.92K -666 Closed
RhumbLine Advisers
50
RhumbLine Advisers
Massachusetts
– -$1.21K -205 Closed
1
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GWH Hedge Fund Activity: Q1 2025 in Review

45 of the 7,461 institutional investors tracked by Wall St. Rank reported a position in ESS Tech (GWH) for Q1 2025, worth a combined $11M — down 46% from $20.5M a quarter earlier.

Sellers outnumbered buyers: 12 funds closed out of GWH and 2 opened new positions — a net loss of 10 holders — while 13 trimmed existing stakes and 3 added.

The largest buyer was Vanguard Group, adding an estimated $138K. The largest seller was Baird Financial Group, cutting an estimated $175K.

  • 45 institutional investors held ESS Tech (GWH) as of Q1 2025, down from 56 in Q4 2024.
  • Funds reported $11M of ESS Tech stock for Q1 2025, down 46% quarter-over-quarter.
  • 2 funds opened new ESS Tech positions in Q1 2025 and 12 closed out, a net change of -10 holders.
  • The largest ESS Tech buyer in Q1 2025 was Vanguard Group, an estimated $138K added.
  • The largest ESS Tech seller in Q1 2025 was Baird Financial Group, an estimated $175K sold.

Based on aggregated 13F filings for Q1 2025.