ESS Tech

GWH · NYSE

$0.1567−$0.0133 (−7.82%)TodayMarket closed · Oct 1, 7:00 PM ET

Prev close $0.17

Who owns GWH

Largest institutional holders, from their latest 13F filings

Top institutional holders of GWH
Holder	Shares	% of shares	Change, last filing	Filed
SoftBank Group Corp	35.95M	122.33%	+4.24M	Nov 30, 2021
Breakthrough Energy Investments, L.L.C.	18.56M	63.15%	+2.52M	Nov 30, 2021
Fidelity Management & Research Company LLC	13.20M	44.91%	+13.20M	Nov 30, 2021
Ortelius Capital Partners, LLC	13.00M	44.24%	+1.84M	Nov 30, 2021
Cycle Capital Management (CCM) Inc.	11.29M	38.42%	+1.55M	Nov 30, 2021
BASF Venture Capital GmbH	9.21M	31.35%	+1.24M	Nov 30, 2021
Evans (Craig E)	5.37M	18.28%	−20.19K	Jan 4, 2022
Song (Julia Ph.D.)	2.28M	7.75%	+360.82K	Nov 30, 2021
Glazer Capital, LLC	1.76M	6.00%	−349.49K	Sep 30, 2021
BMO Capital Markets (US)	1.20M	4.09%	+0	Sep 30, 2021

Largest mutual fund holders

Top mutual fund holders of GWH
Holder	Shares	% of shares	Change, last filing	Filed
Invesco WilderHill Clean Energy ETF	1.59M	5.41%	+1.59M	Dec 31, 2021
Fidelity Advisor Growth Opportunities Fund	1.25M	4.24%	+1.25M	Dec 31, 2021
Fidelity Blue Chip Growth Fund	908.20K	3.09%	+908.20K	Dec 31, 2021
Fidelity Select Technology Portfolio	787.29K	2.68%	+787.29K	Dec 31, 2021
Vanguard Extended Market Index Fund	723.06K	2.46%	+659.22K	Dec 31, 2021

Insider trades

Form 4 filings by officers, directors and large holders

Over the last 6 months, insiders bought $25.66K (1 trade) and sold $11.99K (6 trades) of GWH on the open market.

Latest GWH insider transactions
Insider	Date	Type	Shares	Price	Value
Suhadolnik Kate Eileen	Aug 21, 2026	Sale	3.93K	$0.4022	$1.58K
Goodman Kelly F.	Aug 21, 2026	Sale	5.40K	$0.4022	$2.17K
Buckley Drew P	Jun 4, 2026	Buy	25.00K	$1.03	$25.66K
Hossfeld Rich	May 29, 2026	Award	13.51K	—	—
WELLMAN ALEXI	May 29, 2026	Award	13.51K	—	—
Quarls Harry	May 29, 2026	Award	13.51K	—	—
Garabedian Raffi	May 29, 2026	Award	13.51K	—	—
Nijhawan Sandeep	May 29, 2026	Award	13.51K	—	—
Suhadolnik Kate Eileen	May 22, 2026	Sale	1.92K	$0.9346	$1.80K
Goodman Kelly F.	May 22, 2026	Sale	2.75K	$0.9346	$2.57K

Short interest

Settled Sep 30, 2026

Shares short: 2.15M
Days to cover: 1.33
% of shares outstanding: 7.30%
Average daily volume: 1.61M
Change since last report: −11.7%

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