ESS Tech, Inc. (GWH)
OTC: GWH · Miscellaneous Electrical Machinery, Equipment & Supplies · Wilsonville, OR · filing with the SEC since 2020
Filings
310 filings since 2017 beside 164 insider forms · Non-accelerated filer and smaller reporting company · read from EDGAR on Nov 13, 2026Due nextNon-accelerated filer and smaller reporting company
10-Q
Quarterly report for the quarter ending Sep 30, 2026Non-accelerated filers and smaller reporting companies have 45 days after the quarter ends; quarter ends are taken to the month end.
by Nov 14, 2026
10-K
Annual report for the fiscal year ending Dec 31, 2026Non-accelerated filers and smaller reporting companies have 90 days after the fiscal year ends.
by Mar 31, 2027
A deadline is the latest date the SEC's rules allow for its filer category. It is not a forecast of the day the company files. Last time, the results release (8-K item 2.02) came 42 days after the quarter ended. The proxy statement was last filed Sep 24, 2026.
Filings a yearinsider forms included
321277263428157
2026 counts to Nov 13, 2026.
Listing warning from its exchange (8-K item 3.01): 6 times in the last 36 months, the newest Oct 5, 2026.Officer or director change (8-K item 5.02): 8 times in the last 36 months, the newest Sep 3, 2026.SEC letters: 4 in the last 36 months, the newest Dec 9, 2025.
Insider forms (3, 4, 5 and 144) are counted each year but not listed here; the people and their trades are on the Ownership tab.
FiledFormWhat it is, in plain wordsPeriodAsk
Oct 5, 2026
8-K items 3.01, 7.01, 9.01
Listing warning from its exchange; Investor disclosure (Regulation FD) · Current report
Oct 2, 2026
Aug 21, 2026
8-K items 1.01, 3.02, 8.01, 9.01
Major agreement signed; Shares sold without registration; Other event · Current report
Aug 20, 2026
Jun 23, 2026
8-K items 2.02, 7.01, 8.01, 9.01
Results released; Investor disclosure (Regulation FD); Other event · Current report
Jun 15, 2026
8-K items 3.01, 7.01, 9.01
Listing warning from its exchange; Investor disclosure (Regulation FD) · Current report
Jun 9, 2026
Jan 29, 2026
8-K items 2.02, 5.02, 9.01
Results released; Officer or director change · Current report
Jan 23, 2026
40 of 310 shown
Every row opens the filing on EDGAR. The plain words are the site's own for each form and each 8-K item; the complete history, insider forms included, is on EDGAR.