{"schema_version":"secwatch.filing_event.v1","accession":"0001628280-25-005510","form_type":"8-K","ticker":"GWH","cik":"0001819438","company_name":"ESS Tech, Inc.","filed_at":"2025-02-14T23:59:59+00:00","discovered_at":"2026-05-14T18:03:05.050934+00:00","generated_at":"2026-05-26T21:34:10.979292+00:00","sec_items":["5.02","9.01"],"event_type":"leadership","sentiment":"neutral","materiality_score":0.8,"calibrated_materiality_score":0.8,"confidence":"high","headline":"ESS CEO Eric Dresselhuys resigns; interim CEO Goodman appointed; board explores strategic options","bullets":["CEO Eric Dresselhuys separated Feb 13, 2025; receives 12 months base salary ($500K) plus COBRA and accelerated equity vesting.","Kelly Goodman (VP Legal) appointed interim CEO; annual salary $297,432; supported by Office of Interim CEO (CFO Rabb, EVP Heng).","Board engaged advisors to evaluate potential commercial or financial transactions to enable new strategic direction.","ESS now bidding on 12-24 hour LDES projects for AI/data center loads, targeting initial installations in 2027."],"urls":{"canonical":"https://secwatch.observer/filing/0001628280-25-005510","json":"https://secwatch.observer/filing/0001628280-25-005510.json","markdown":"https://secwatch.observer/filing/0001628280-25-005510.md","text":"https://secwatch.observer/filing/0001628280-25-005510.txt","edgar_index":"https://www.sec.gov/Archives/edgar/data/1819438/000162828025005510/0001628280-25-005510-index.htm","edgar_primary_document":"https://www.sec.gov/Archives/edgar/data/1819438/000162828025005510/wk-20250213.htm"},"model":{"generated_by":"deepseek-v4-flash:cloud@v2","generated_at":"2026-05-26T21:34:10.979292+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":"7ae5792f93","claim":"Eric Dresselhuys departed as Chief Executive Officer at ESS Tech, Inc..","evidence_excerpt":"On February 13, 2025, Eric Dresselhuys, Chief Executive Officer of ESS Tech, Inc. (the “Company”), separated from the Company and resigned as a member of Company’s Board of Directors (the “Board”).","evidence_source":"SEC 8-K Item 5.02","evidence_url":"https://www.sec.gov/Archives/edgar/data/1819438/000162828025005510/0001628280-25-005510-index.htm","confidence":0.95,"family_label":"Executive change","details":[{"label":"Action","value":"separated and resigned"},{"label":"Role","value":"Chief Executive Officer"}],"fact_type":"executive_change"},{"claim_id":"83ed3c92e2","claim":"Kelly F. Goodman was appointed as Interim Chief Executive Officer and Principal Executive Officer at ESS Tech, Inc..","evidence_excerpt":"In connection with Mr. Dresselhuys’ departure, Kelly F. Goodman, the Company’s current Vice President of Legal and Corporate Secretary, will be appointed as the interim Chief Executive Officer and Principal Executive Officer of the Company, effective February 13, 2025, until her successor is duly appointed and qualified.","evidence_source":"SEC 8-K Item 5.02","evidence_url":"https://www.sec.gov/Archives/edgar/data/1819438/000162828025005510/0001628280-25-005510-index.htm","confidence":0.95,"family_label":"Executive change","details":[{"label":"Action","value":"appointed"},{"label":"Role","value":"Interim Chief Executive Officer and Principal Executive Officer"}],"fact_type":"executive_change"}],"license":"Source filings: public domain (SEC EDGAR). Summaries (headline + bullets): CC-BY-4.0; attribute https://secwatch.observer"}