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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, Q1 2023

Institutional positions in ESS Tech, Inc. as of Mar 31, 2023. 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
102
−3 vs. Q4 2022
Shares held
63.9M
−366.1K (−0.6%) vs. Q4 2022
Total value
$88.9M
−$67.3M (−43.1%) vs. Q4 2022
New holders
22
25 more added
Sold out
25
24 more reduced

2 institutions that held it in Q4 2022 haven't filed for Q1 2023 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.

Compare with Q4 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 holdersQ1 2023: 102 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 2023: $88.9M
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 2023

Shares, value and share of portfolio for each institution holding ESS Tech, Inc.; share changes are against Q4 2022.

Institutions holding GWH in Q1 2023
InstitutionSharesValue% of portfolioChange in sharesAction
Softbank Group Corp35,953,699$50.0M0.64%00.0%Unchanged
VitalStone Financial, LLC400––+135+50.9%Added
Kim, LLC0$00.00%−1,691,446−100.0%Sold out
Van Eck Associates Corp0$00.00%−488,630−100.0%Sold out
XTX Topco Ltd0$00.00%−100,753−100.0%Sold out
Jump Financial, LLC0$00.00%−92,400−100.0%Sold out
MetLife Investment Management0$00.00%−46,628−100.0%Sold out
Chase Investment Counsel Corp0$00.00%−19,825−100.0%Sold out
Bank of Montreal0$00.00%−17,124−100.0%Sold out
Wolverine Trading, LLC0$00.00%−16,138−100.0%Sold out
AQR Capital Management LLC0$00.00%−14,474−100.0%Sold out
Dynamic Technology Lab Private Ltd0$00.00%−13,552−100.0%Sold out
Group One Trading, L.P.0$00.00%−11,309−100.0%Sold out
CI Private Wealth, LLC0$00.00%−11,000−100.0%Sold out
ProShare Advisors LLC0$00.00%−10,380−100.0%Sold out
SailingStone Capital Partners LLC0$00.00%−9,805−100.0%Sold out
Metropolitan Life Insurance Co0$00.00%−5,412−100.0%Sold out
Clear Street Markets LLC0$00.00%−4,801−100.0%Sold out
Retirement Financial Solutions, LLC0$00.00%−1,554−100.0%Sold out
Money Concepts Capital Corp0$00.00%−608−100.0%Sold out
Horan Securities, Inc.0$00.00%−255−100.0%Sold out
Whittier Trust Co0$00.00%−200−100.0%Sold out
Hexagon Capital Partners LLC0$00.00%−100−100.0%Sold out
TCI Wealth Advisors, Inc.0$00.00%−60−100.0%Sold out
Northwestern Mutual Wealth Management Co0$00.00%−20−100.0%Sold out
Nisa Investment Advisors, LLC0$00.00%−50−100.0%Sold out
CWM, LLC0$00.00%−57−100.0%Sold out
Sargent Bickham Lagudis LLC––––Not filed
CoreCap Advisors, LLC––––Not filed