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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, Q2 2024

Institutional positions in ESS Tech, Inc. as of Jun 30, 2024. 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
103
0 vs. Q1 2024
Shares held
51.7M
−4.83M (−8.5%) vs. Q1 2024
Total value
$42.3M
+$1.41M (+3.5%) vs. Q1 2024
New holders
28
20 more added
Sold out
28
28 more reduced

1 institution that held it in Q1 2024 haven't filed for Q2 2024 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.

Compare with Q1 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 holdersQ2 2024: 103 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 heldQ2 2024: $42.3M
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, Q2 2024

Shares, value and share of portfolio for each institution holding ESS Tech, Inc.; share changes are against Q1 2024.

Institutions holding GWH in Q2 2024
InstitutionSharesValue% of portfolioChange in sharesAction
Millennium Management LLC1,777,622$1.45M0.00%+1,668,870+1,534.6%Added
Vanguard Group Inc2,876,217$2.35M0.00%−387,632−11.9%Reduced
Softbank Group Corp35,953,699$29.4M0.15%00.0%Unchanged
Nuveen Asset Management, LLC0$00.00%−276,596−100.0%Sold out
Bank of New York Mellon Corp0$00.00%−259,813−100.0%Sold out
Bridgeway Capital Management, LLC0$00.00%−150,000−100.0%Sold out
Healthcare of Ontario Pension Plan Trust Fund0$00.00%−137,142−100.0%Sold out
American International Group, Inc.0$00.00%−44,965−100.0%Sold out
SG Americas Securities, LLC0$00.00%−43,350−100.0%Sold out
Deutsche Bank AG0$00.00%−37,857−100.0%Sold out
Invesco Ltd.0$00.00%−33,198−100.0%Sold out
Voya Investment Management LLC0$00.00%−32,205−100.0%Sold out
Alliancebernstein L.P.0$00.00%−24,530−100.0%Sold out
Price T Rowe Associates Inc0$00.00%−21,821−100.0%Sold out
Walleye Capital LLC0$00.00%−19,499−100.0%Sold out
Commonwealth Equity Services, LLC0$00.00%−18,663−100.0%Sold out
Simplicity Wealth,LLC0$00.00%−14,596−100.0%Sold out
Bleakley Financial Group, LLC0$00.00%−14,596−100.0%Sold out
American Century Companies Inc0$00.00%−12,538−100.0%Sold out
Simplex Trading, LLC0$00.00%−11,220−100.0%Sold out
Private Trust Co NA0$00.00%−10,500−100.0%Sold out
Janney Montgomery Scott LLC0$00.00%−10,000−100.0%Sold out
California State Teachers Retirement System0$00.00%−9,172−100.0%Sold out
Legal & General Group Plc0$00.00%−7,946−100.0%Sold out
Ameritas Investment Partners, Inc.0$00.00%−6,050−100.0%Sold out
Amalgamated Bank0$00.00%−2,800−100.0%Sold out
Sandy Spring Bank0$00.00%−900−100.0%Sold out
First Command Advisory Services, Inc.0$00.00%−370−100.0%Sold out
Financial Avengers, Inc.0$00.00%−80−100.0%Sold out
Nelson, Van Denburg & Campbell Wealth Management Group, LLC0$00.00%−24−100.0%Sold out
Sofos Investments, Inc.0$00.00%−12−100.0%Sold out
Cutler Group LP––––Not filed