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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, Q4 2022

Institutional positions in ESS Tech, Inc. as of Dec 31, 2022. 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
107
+15 vs. Q3 2022
Shares held
64.3M
+1.33M (+2.1%) vs. Q3 2022
Total value
$156.2M
−$101.5M (−39.4%) vs. Q3 2022
New holders
36
26 more added
Sold out
21
23 more reduced

2 institutions that held it in Q3 2022 haven't filed for Q4 2022 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.

Compare with Q3 2022: 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 holdersQ4 2022: 107 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 heldQ4 2022: $156.2M
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, Q4 2022

Shares, value and share of portfolio for each institution holding ESS Tech, Inc.; share changes are against Q3 2022.

Institutions holding GWH in Q4 2022
InstitutionSharesValue% of portfolioChange in sharesAction
Kim, LLC1,691,446$4.11M0.23%−16,900−1.0%Reduced
State Street Corp1,764,954$4.29M0.00%+20,151+1.2%Added
Vanguard Group Inc3,085,702$7.50M0.00%−206,215−6.3%Reduced
Legal & General Group Plc3,183,765$7.74M0.00%+1,133,486+55.3%Added
Invesco Ltd.4,337,889$10.5M0.00%+1,056,429+32.2%Added
BlackRock Inc.4,818,853$11.7M0.00%+192,247+4.2%Added
Softbank Group Corp35,953,699$87.4M1.31%00.0%Unchanged
First Horizon Advisors, Inc.0$00.00%−1,807−100.0%Sold out
Electron Capital Partners, LLC0$00.00%−1,093,561−100.0%Sold out
BIT Capital GmbH0$00.00%−384,257−100.0%Sold out
Highland Private Wealth Management0$00.00%−137,117−100.0%Sold out
Mirae Asset Global Investments Co., Ltd.0$00.00%−53,701−100.0%Sold out
Davy Global Fund Management Ltd0$00.00%−50,451−100.0%Sold out
Simplex Trading, LLC0$00.00%−45,602−100.0%Sold out
Captrust Financial Advisors0$00.00%−35,099−100.0%Sold out
Ensign Peak Advisors, Inc0$00.00%−28,920−100.0%Sold out
Ergoteles LLC0$00.00%−13,033−100.0%Sold out
First Republic Investment Management, Inc.0$00.00%−12,685−100.0%Sold out
Principal Financial Group Inc0$00.00%−11,432−100.0%Sold out
Raymond James Financial Services Advisors, Inc.0$00.00%−11,064−100.0%Sold out
Polar Capital Holdings Plc0$00.00%−10,561−100.0%Sold out
State of Wisconsin Investment Board0$00.00%−10,015−100.0%Sold out
Wolverine Asset Management LLC0$00.00%−2,151−100.0%Sold out
Signaturefd, LLC0$00.00%−700−100.0%Sold out
Selective Wealth Management, Inc.0$00.00%−500−100.0%Sold out
Newbridge Financial Services Group, Inc.0$00.00%−500−100.0%Sold out
Glassman Wealth Services0$00.00%−154−100.0%Sold out
Cutler Group LP0$00.00%−67−100.0%Sold out
Regentatlantic Capital LLC––––Not filed
American Portfolios Advisors––––Not filed