{"schema_version":"secwatch.filing_event.v1","accession":"0001104659-23-099833","form_type":"8-K","ticker":"GEVO","cik":"0001392380","company_name":"Gevo, Inc.","filed_at":"2023-09-12T23:59:59+00:00","discovered_at":"2026-05-14T18:03:33.768170+00:00","generated_at":"2026-06-10T20:41:32.112519+00:00","sec_items":["5.02"],"event_type":"leadership","sentiment":"neutral","materiality_score":0.5,"calibrated_materiality_score":0.5,"confidence":"high","headline":"Gevo CCO Timothy Cesarek resigns effective Sept 22, 2023","bullets":["Timothy J. Cesarek, Chief Commercial Officer, resigned from Gevo, Inc., effective September 22, 2023.","He accepted an offer to serve as Chief Executive Officer of another company.","No replacement or interim arrangement was disclosed in the filing."],"urls":{"canonical":"https://secwatch.observer/filing/0001104659-23-099833","json":"https://secwatch.observer/filing/0001104659-23-099833.json","markdown":"https://secwatch.observer/filing/0001104659-23-099833.md","text":"https://secwatch.observer/filing/0001104659-23-099833.txt","edgar_index":"https://www.sec.gov/Archives/edgar/data/1392380/000110465923099833/0001104659-23-099833-index.htm","edgar_primary_document":"https://www.sec.gov/Archives/edgar/data/1392380/000110465923099833/tm2325867d1_8k.htm"},"model":{"generated_by":"deepseek-v4-flash:cloud@v2","generated_at":"2026-06-10T20:41:32.112519+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":"61f87cad15","claim":"Timothy J. Cesarek resigned as Chief Commercial Officer at Gevo, Inc..","evidence_excerpt":"On September 8, 2023, Timothy J. Cesarek, Chief Commercial Officer of Gevo, Inc. (the “Company), submitted his resignation from his role with the Company, effective September 22, 2023, as he has accepted an offer to serve as Chief Executive Officer of another company.","evidence_source":"SEC 8-K Item 5.02","evidence_url":"https://www.sec.gov/Archives/edgar/data/1392380/000110465923099833/0001104659-23-099833-index.htm","confidence":0.95,"family_label":"Executive change","details":[{"label":"Action","value":"resigned"},{"label":"Role","value":"Chief Commercial Officer"}],"fact_type":"executive_change"}],"license":"Source filings: public domain (SEC EDGAR). Summaries (headline + bullets): CC-BY-4.0; attribute https://secwatch.observer"}