{"schema_version":"secwatch.filing_event.v1","accession":"0001819438-26-000065","form_type":"8-K","ticker":"GWH","cik":"0001819438","company_name":"ESS Tech, Inc.","filed_at":"2026-07-16T22:14:26+00:00","discovered_at":"2026-07-17T10:05:00.320988+00:00","generated_at":"2026-07-17T10:05:55.105645+00:00","sec_items":["1.01","9.01"],"event_type":"other_material","sentiment":"neutral","materiality_score":0.4,"calibrated_materiality_score":0.4,"confidence":"high","headline":"ESS Tech amends ATM program to sell $75M shares; adds Roth Capital as agent","bullets":["Terminated BMO, Canaccord, Needham, and Stifel as sales agents under the ATM program.","Added Roth Capital Partners as a sales agent and qualified independent underwriter.","ATM program remains for up to $75 million of common stock, originally dated Nov 13, 2025.","Amendment filed as Exhibit 1.1; prospectus supplement amended accordingly."],"urls":{"canonical":"https://secwatch.observer/filing/0001819438-26-000065","json":"https://secwatch.observer/filing/0001819438-26-000065.json","markdown":"https://secwatch.observer/filing/0001819438-26-000065.md","text":"https://secwatch.observer/filing/0001819438-26-000065.txt","edgar_index":"https://www.sec.gov/Archives/edgar/data/1819438/000181943826000065/0001819438-26-000065-index.htm","edgar_primary_document":"https://www.sec.gov/Archives/edgar/data/1819438/000181943826000065/wk-20260716.htm"},"model":{"generated_by":"deepseek-v4-flash:cloud@v2","generated_at":"2026-07-17T10:05:55.105645+00:00"},"review":{"review_status":"machine_generated","human_reviewed":false,"corrected":false,"correction_note":null,"correction_timestamp":null,"superseded_by":null,"related_filings":[]},"source_grounded_claims":[],"license":"Source filings: public domain (SEC EDGAR). Summaries (headline + bullets): CC-BY-4.0; attribute https://secwatch.observer"}