ESS Tech, Inc. SEC filings GWHT

ESS Tech, Inc. has 473 filings in SEC EDGAR's recent list, going back to Jul 31, 2020. Its latest annual report, Form ARS, was filed on Apr 15, 2026 for the period ended Dec 31, 2025. The latest quarterly report (Form 10-Q) was filed on Aug 11, 2026, covering the quarter ended Jun 30, 2026. The most recent current report (Form 8-K) was filed on Oct 5, 2026 (listing notice, regulation fd disclosure). The company's fiscal year ends on December 31.

Form Description Filed Period
ARS Annual report to shareholders Apr 15, 2026 Dec 31, 2025
10-K Annual report Mar 5, 2026 Dec 31, 2025
ARS Annual report to shareholders Sep 22, 2025 Sep 22, 2025
10-K Annual report Mar 31, 2025 Dec 31, 2024
ARS Annual report to shareholders Apr 5, 2024 Apr 5, 2024
10-K Annual report Mar 14, 2024 Dec 31, 2023
ARS Annual report to shareholders Apr 7, 2023 Dec 31, 2022
10-K Annual report Mar 2, 2023 Dec 31, 2022
10-K Annual report Mar 4, 2022 Dec 31, 2021
10-K/A Amended annual report Dec 3, 2021 Dec 31, 2020
10-K/A Amended annual report May 24, 2021 Dec 31, 2020
10-K Annual report Mar 31, 2021 Dec 31, 2020

Showing 12 filings. Main filings leave out insider and ownership forms such as Form 4; choose a type above to see them. Each form opens on SEC.gov. Older filings are on SEC EDGAR.

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Company profile

Industry
Miscellaneous Electrical Machinery, Equipment & Supplies (SIC 3690)
Listed as
GWHT (OTC)
Fiscal year ends
December 31
Incorporated in
DE
Headquarters
Wilsonville, OR
SEC filer status
Non-accelerated filer, Smaller reporting company
SEC CIK
1819438
Former names
ACON S2 Acquisition Corp. (until Oct 8, 2021)

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Source: SEC EDGAR filings. This is company-reported data, not investment advice.