{"schema_version":"secwatch.filing_event.v1","accession":"0001628280-26-004263","form_type":"8-K","ticker":"GWH","cik":"0001819438","company_name":"ESS Tech, Inc.","filed_at":"2026-01-30T23:59:59+00:00","discovered_at":"2026-05-14T18:02:36.324305+00:00","generated_at":"2026-05-16T06:03:57.788737+00:00","sec_items":["1.01","9.01"],"event_type":"other_material","sentiment":"neutral","materiality_score":0.7,"calibrated_materiality_score":0.7,"confidence":"high","headline":"ESS Tech raises approximately $15 million in registered direct offering of common stock and pre-funded warrants","bullets":["On January 29, 2026, ESS Tech entered into a securities purchase agreement to sell 3,471,428 shares and 5,100,000 pre-funded warrants at $1.75 per share or $1.74999 per warrant.","The registered direct offering is expected to close on January 30, 2026, with net proceeds of approximately $13.5 million after fees and expenses.","Proceeds from the offering will be used for general corporate purposes and working capital.","Aegis Capital Corp. served as exclusive placement agent, receiving a cash fee of up to 6.0% of gross proceeds and expense reimbursement up to $80,000."],"urls":{"canonical":"https://secwatch.observer/filing/0001628280-26-004263","json":"https://secwatch.observer/filing/0001628280-26-004263.json","markdown":"https://secwatch.observer/filing/0001628280-26-004263.md","text":"https://secwatch.observer/filing/0001628280-26-004263.txt","edgar_index":"https://www.sec.gov/Archives/edgar/data/1819438/000162828026004263/0001628280-26-004263-index.htm","edgar_primary_document":"https://www.sec.gov/Archives/edgar/data/1819438/000162828026004263/gwh-20260129.htm"},"model":{"generated_by":"deepseek-v4-flash:cloud","generated_at":"2026-05-16T06:03:57.788737+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":[{"claim_id":"b7a52e53eae7d965407fb3da5b5229d934e26cdb","claim":"ESS Tech, Inc. entered into Purchase Agreement with certain institutional investors valued at approximately $13.5 million (effective 2026-01-29).","evidence_excerpt":"On January 29, 2026, ESS Tech, Inc. (the “Company”) signed a securities purchase agreement (the “Purchase Agreement”) with certain institutional investors identified on the signature pages thereto (the “Purchasers”) pursuant to which the Company agreed to issue and sell in a registered direct offering registered under the Securities Act of 1933, as amended (the “Securities Act”), an aggregate of 3,471,428 shares (the “Shares”) of the Company’s common stock (“Common Stock”), Pre-Funded Warrants to purchase an aggregate of 5,100,000 shares of Common Stock at an exercise price of $0.00001 per share (the “Pre-Funded Warrants”), and the 5,100,000 shares of Common Stock underlying the Pre-Funded Warrants (“Pre-Funded Warrant Shares”) at an offering price of $1.75 per Share or $1.74999 per Pre-Funded Warrant, as applicable (the “Registered Direct Offering”).","evidence_source":"SEC 8-K Item 1.01/1.02","evidence_url":"https://www.sec.gov/Archives/edgar/data/1819438/000162828026004263/0001628280-26-004263-index.htm","confidence":0.9,"family_label":"Material Agreements","details":[{"label":"Action","value":"entry"},{"label":"Agreement","value":"equity purchase"},{"label":"Counterparty","value":"certain institutional investors"},{"label":"Value","value":"approximately $13.5 million"},{"label":"Effective","value":"2026-01-29"}],"fact_type":"material_agreement"}],"license":"Source filings: public domain (SEC EDGAR). Summaries (headline + bullets): CC-BY-4.0; attribute https://secwatch.observer"}