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$GWHT
$0.16 +$0.00 (0.0%) Close

Ownership

13F as of Q2 2026 · 33.0M shares outstanding

Who owns GWHT?

By type of holder
Institutions 20.5% Insiders 4.2% Everyone else 75.4%
Concentration Top 10 holders own 40.2%
SB Energy Global Holdings One Ltd. 7.3% · SB Energy Global Holdings Limited 7.3%
Institutional ownership
20.5%
-2.6 pts vs last qtr
Institutional holders
46
-5 vs last qtr
Net shares bought
−857.3K
by institutions in Q2 2026
New / sold out
5 / 10
positions opened vs closed

How is ownership changing?

Institutions, last 8 quarters

Biggest buyers in Q2 2026
  • UBS Group AG +453.3K
  • BlackRock, Inc. +83.5K

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Biggest sellers in Q2 2026
  • Heights Capital Management, Inc SOLD OUT −963.5K
  • Arosa Capital Management LP −360.0K

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Who is planning to sell?

No insider has filed a notice of proposed sale (Form 144) for ESS Tech Inc in the last 12 months.

Is your stake being diluted?

Diluted share count, FY2020–FY2025
+271.8%
+30.04% a year
Each share's claim on the business
−73.1%
shrank without buying or selling a share
Spent on buybacks vs paid in stock
— vs $47.8M
over 6 fiscal years
Diluted shares, split-adjusted
3.8M9.3M14.7M2020: 3.9M shares'202021: 5.6M shares'212022: 10.2M shares'222023: 10.7M shares'232024: 11.8M shares'242025: 14.6M shares'25
Buybacks Stock-based comp
$0$5.9M$11.9M2020 buybacks: $02020 stock comp: $310.0K'202021 buybacks: $02021 stock comp: $7.9M'212022 buybacks: $02022 stock comp: $11.9M'222023 buybacks: $02023 stock comp: $10.6M'232024 buybacks: $02024 stock comp: $11.6M'242025 buybacks: $02025 stock comp: $5.4M'25

How patient are the owners?

Institutional shares by how long they've been held
5+ years0% 3–5 years0% 1–3 years65% Under 1 year35%
Quarterly turnover
14.7%
of institutional shares changed hands
Top 10 managers, median time held
1.8 years

Super Investors

Investment managers reporting GWHT on Form 13F
SG
Softbank Group Corp.
13D · 20.2%
Shares
2.4M
% of company
7.27%
Change vs last qtr
Unchanged
Held since
2024
AI
Alyeska Investment Group, L.P.
Shares
1.4M
% of company
4.25%
Change vs last qtr
Unchanged
Held since
Q4 '25

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Institutional Funds

Mutual funds and ETFs reporting GWHT on Form N-PORT; together they hold 2.9% of the company
VT
Position value
$349K
% of company
1.11%
% of the fund
0.00%
As of
June 30, 2026
VE
Position value
$258K
% of company
0.82%
% of the fund
0.00%
As of
June 30, 2026

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Insiders and 5%+ holders

From Forms 3/4/5 and Schedules 13D/G
SE
SB Energy Global Holdings One Ltd.
5%+ holder13D · 20.2%
Shares
2.4M
% of company
7.27%
Change vs last qtr
—
Held since
—
SE
SB Energy Global Holdings Limited
5%+ holder13D · 20.2%
Shares
2.4M
% of company
7.27%
Change vs last qtr
—
Held since
—

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