{"schema_version":"secwatch.filing_event.v1","accession":"0001628280-25-042944","form_type":"8-K","ticker":"LNZA","cik":"0001843724","company_name":"LanzaTech Global, Inc.","filed_at":"2025-09-26T23:59:59+00:00","discovered_at":"2026-05-14T18:02:45.314631+00:00","generated_at":"2026-05-17T05:36:15.732124+00:00","sec_items":["1.01","5.03","9.01"],"event_type":"other_material","sentiment":"neutral","materiality_score":0.6,"calibrated_materiality_score":0.6,"confidence":"high","headline":"LanzaTech amends preferred stock agreement, extends financing deadline and defines reverse split terms","bullets":["Extended deadline for common stock financing to Oct 15, 2025; target $35M-$60M at $5/share post reverse split.","Requisite stockholder approvals now include 100:1 reverse stock split and par value adjustment.","Purchaser waived registration statement deadline; company must file within 10 business days after warrant shares issued.","Amendment No. 2 and Certificate of Amendment filed September 22, 2025; Waiver Agreement dated September 26, 2025."],"urls":{"canonical":"https://secwatch.observer/filing/0001628280-25-042944","json":"https://secwatch.observer/filing/0001628280-25-042944.json","markdown":"https://secwatch.observer/filing/0001628280-25-042944.md","text":"https://secwatch.observer/filing/0001628280-25-042944.txt","edgar_index":"https://www.sec.gov/Archives/edgar/data/1843724/000162828025042944/0001628280-25-042944-index.htm","edgar_primary_document":"https://www.sec.gov/Archives/edgar/data/1843724/000162828025042944/amci-20250922.htm"},"model":{"generated_by":"deepseek-v4-flash:cloud@v2","generated_at":"2026-05-17T05:36:15.732124+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":"4670c3a91d09fdd455172565bb8403c0aa8bf997","claim":"LanzaTech Global, Inc.: Filed a Certificate of Amendment to the Amended and Restated Certificate of Designation of Series A Convertible Senior Preferred Stock (effective 2025-09-22).","evidence_excerpt":"On September 22, 2025, the Company filed a Certificate of Amendment to the Amended and Restated Certificate of Designation of Series A Convertible Senior Preferred Stock (the “CoD Amendment”) with the Office of the Secretary of State of the State of Delaware.","evidence_source":"SEC 8-K Item 5.03/5.05/5.06","evidence_url":"https://www.sec.gov/Archives/edgar/data/1843724/000162828025042944/0001628280-25-042944-index.htm","confidence":0.9,"family_label":"Governance Changes","details":[{"label":"Change","value":"charter amendment"},{"label":"Effective","value":"2025-09-22"}],"fact_type":"governance_change"}],"license":"Source filings: public domain (SEC EDGAR). Summaries (headline + bullets): CC-BY-4.0; attribute https://secwatch.observer"}