{"schema_version":"secwatch.filing_event.v1","accession":"0001628280-25-052045","form_type":"8-K","ticker":"GWH","cik":"0001819438","company_name":"ESS Tech, Inc.","filed_at":"2025-11-13T23:59:59+00:00","discovered_at":"2026-05-14T18:02:40.592377+00:00","generated_at":"2026-05-16T20:31:18.795895+00:00","sec_items":["1.01","9.01"],"event_type":"other_material","sentiment":"neutral","materiality_score":0.6,"calibrated_materiality_score":0.6,"confidence":"high","headline":"ESS Tech launches $75M at-the-market offering; proceeds to repay Yorkville promissory note","bullets":["Entered ATM agreement with Yorkville, BMO, Canaccord, Needham & Stifel to sell up to $75M of common stock.","Net proceeds first satisfy installment payments within 30 days on Promissory Note to YA II PN (Yorkville affiliate).","After that, 80% of remaining proceeds used to repay Promissory Note in order of maturity; 20% for working capital.","Agents receive 3% commission on gross sales; Canaccord acts as qualified independent underwriter.","Offering under Rule 415; Company not obligated to sell any shares, but agents will use commercially reasonable efforts."],"urls":{"canonical":"https://secwatch.observer/filing/0001628280-25-052045","json":"https://secwatch.observer/filing/0001628280-25-052045.json","markdown":"https://secwatch.observer/filing/0001628280-25-052045.md","text":"https://secwatch.observer/filing/0001628280-25-052045.txt","edgar_index":"https://www.sec.gov/Archives/edgar/data/1819438/000162828025052045/0001628280-25-052045-index.htm","edgar_primary_document":"https://www.sec.gov/Archives/edgar/data/1819438/000162828025052045/wk-20251113.htm"},"model":{"generated_by":"deepseek-v4-flash:cloud@v2","generated_at":"2026-05-16T20:31:18.795895+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"}