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Livermore
ZHEN

ESS Tech, Inc.

GWH
Exchange
NYSE
Industry
Miscellaneous Electrical Machinery, Equipment & Supplies
SEC CIK
0001819438

In the last 90 days, ESS Tech, Inc. insiders filed 0 open-market purchases and 2 sales; 47 institutions reported holding it in 13F filings for Q2 2026, worth $6.94M in total; no superinvestor holds it.

Other share classesGWHWW

13F holders, Q1 2025

Institutional positions in ESS Tech, Inc. as of Mar 31, 2025. Investment managers with $100 million or more in US stocks report their long positions on Form 13F within 45 days after each quarter ends. How 13F works

Institutional holders
45
−10 vs. Q4 2024
Shares held
3.37M
−113.0K (−3.2%) vs. Q4 2024
Total value
$11.0M
−$9.49M (−46.4%) vs. Q4 2024
New holders
2
3 more added
Sold out
12
13 more reduced

1 institution that held it in Q4 2024 haven't filed for Q1 2025 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.

Compare with Q4 2024: new holders, sold out and not filed yet

Holders and value by quarter

Institutions reporting GWH on Form 13F each quarter since Q1 2021, and the total value they reported. Values are as of each quarter end, so they also move with the share price.

Institutional holdersQ1 2025: 45 institutions
Q1 2021: 0 institutionsQ2 2021: 0 institutionsQ3 2021: 4 institutionsQ4 2021: 58 institutionsQ1 2022: 75 institutionsQ2 2022: 97 institutionsQ3 2022: 94 institutionsQ4 2022: 107 institutionsQ1 2023: 102 institutionsQ2 2023: 91 institutionsQ3 2023: 101 institutionsQ4 2023: 108 institutionsQ1 2024: 104 institutionsQ2 2024: 103 institutionsQ3 2024: 50 institutionsQ4 2024: 56 institutionsQ1 2025: 45 institutionsQ2 2025: 49 institutionsQ3 2025: 46 institutionsQ4 2025: 55 institutionsQ1 2026: 51 institutionsQ2 2026: 47 institutions
Value heldQ1 2025: $11.0M
Q1 2021: $0Q2 2021: $0Q3 2021: $9.04MQ4 2021: $622.1MQ1 2022: $331.4MQ2 2022: $175.7MQ3 2022: $257.8MQ4 2022: $156.2MQ1 2023: $88.9MQ2 2023: $86.9MQ3 2023: $114.0MQ4 2023: $69.4MQ1 2024: $40.9MQ2 2024: $42.3MQ3 2024: $20.7MQ4 2024: $20.5MQ1 2025: $11.0MQ2 2025: $4.02MQ3 2025: $5.69MQ4 2025: $11.9MQ1 2026: $8.90MQ2 2026: $6.94M
Institutions holding GWH and their total value by quarter
QuarterHoldersValue
Q2 202647$6.94M
Q1 202651$8.90M
Q4 202555$11.9M
Q3 202546$5.69M
Q2 202549$4.02M
Q1 202545$11.0M
Q4 202456$20.5M
Q3 202450$20.7M
Q2 2024103$42.3M
Q1 2024104$40.9M
Q4 2023108$69.4M
Q3 2023101$114.0M
Q2 202391$86.9M
Q1 2023102$88.9M
Q4 2022107$156.2M
Q3 202294$257.8M
Q2 202297$175.7M
Q1 202275$331.4M
Q4 202158$622.1M
Q3 20214$9.04M
Q2 20210$0
Q1 20210$0

Institutions, Q1 2025

Shares, value and share of portfolio for each institution holding ESS Tech, Inc.; share changes are against Q4 2024.

Institutions holding GWH in Q1 2025
InstitutionSharesValue% of portfolioChange in sharesAction
Softbank Group Corp2,396,980$7.81M0.03%00.0%Unchanged
Baird Financial Group, Inc.367,517$1.20M0.00%−38,421−9.5%Reduced
Vanguard Group Inc217,991$710.7K0.00%+30,276+16.1%Added
Gsa Capital Partners LLP85,084$277.0K0.03%−26,721−23.9%Reduced
BlackRock, Inc.54,593$178.0K0.00%00.0%Unchanged
FMR LLC52,485$171.1K0.00%00.0%Unchanged
Geode Capital Management, LLC52,097$169.9K0.00%+2,299+4.6%Added
Laird Norton Trust Company, LLC21,184$69.1K0.01%00.0%Unchanged
Millennium Management LLC21,147$68.9K0.00%−15,605−42.5%Reduced
State Street Corp16,304$53.2K0.00%00.0%Unchanged
Renaissance Technologies LLC15,860$51.7K0.00%−400−2.5%Reduced
Green Alpha Advisors, LLC14,804$48.3K0.05%−10,129−40.6%Reduced
UBS Group AG12,007$39.1K0.00%−3,792−24.0%Reduced
Northern Trust Corp10,588$34.5K0.00%00.0%Unchanged
Parallel Advisors, LLC5,818$19.0K0.00%+5,818New
Morgan Stanley4,811$15.7K0.00%+777+19.3%Added
CWM, LLC2,666$9.00K0.00%00.0%Unchanged
Golden State Wealth Management, LLC2,707$8.82K0.00%00.0%Unchanged
Bank of America Corp2,661$8.68K0.00%−4,573−63.2%Reduced
The PNC Financial Services Group, Inc.2,443$7.96K0.00%00.0%Unchanged
Advisor Group Holdings, Inc.1,983$6.46K0.00%−3,017−60.3%Reduced
Barclays PLC1,670$5.44K0.00%00.0%Unchanged
National Bank of Canada832$2.66K0.00%00.0%Unchanged
Coldstream Capital Management Inc699$2.28K0.00%+699New
BNP Paribas Arbitrage, SA441$1.44K0.00%−49−10.0%Reduced
Group One Trading, L.P.403$1.31K0.00%−12−2.9%Reduced
Missouri Trust & Investment Co333$1.09K0.00%00.0%Unchanged
Principal Securities, Inc.172$1.01K0.00%00.0%Unchanged
Parkside Financial Bank & Trust233$7600.00%00.0%Unchanged
JPMorgan Chase & Co156$5090.00%00.0%Unchanged
Allworth Financial LP166$3790.00%−15−8.3%Reduced
SBI Securities Co., Ltd.86$2800.00%−61−41.5%Reduced
GWM Advisors LLC72$2340.00%00.0%Unchanged
Archer Investment Corp68$2220.00%00.0%Unchanged
Wolff Wiese Magana LLC66$2160.00%00.0%Unchanged
Farther Finance Advisors, LLC66$1880.00%00.0%Unchanged
Harbor Investment Advisory, LLC33$1080.00%00.0%Unchanged
Mather Group, LLC.20$650.00%00.0%Unchanged
NewSquare Capital LLC20$650.00%00.0%Unchanged
Jones Financial Companies LLLP13$440.00%00.0%Unchanged
Albion Financial Group13$430.00%00.0%Unchanged
Creative Capital Management Investments LLC13$420.00%00.0%Unchanged
CoreCap Advisors, LLC6$200.00%00.0%Unchanged
Northwestern Mutual Wealth Management Co5$160.00%−35−87.5%Reduced
Royal Bank of Canada113$00.00%00.0%Unchanged
Jane Street Group, LLC0$00.00%−28,995−100.0%Sold out
Pathstone Holdings, LLC0$00.00%−16,164−100.0%Sold out
Steward Partners Investment Advisory, LLC0$00.00%−2,825−100.0%Sold out
Tower Research Capital LLC (TRC)0$00.00%−1,135−100.0%Sold out
Dunhill Financial, LLC0$00.00%−666−100.0%Sold out
Rhumbline Advisers0$00.00%−205−100.0%Sold out
IFP Advisors, Inc0$00.00%−33−100.0%Sold out
Jackson, Grant Investment Advisers, Inc.0$00.00%−20−100.0%Sold out
Wells Fargo & Company0$00.00%−13−100.0%Sold out
Measured Risk Portfolios, Inc.0$00.00%−13−100.0%Sold out
Danske Bank A/S0$00.00%−1−100.0%Sold out
Coston, McIsaac & Partners0$00.00%−3−100.0%Sold out
Global Retirement Partners, LLC––––Not filed