{"schema_version":"secwatch.filing_event.v1","accession":"0001213900-25-099560","form_type":"8-K","ticker":"CERO","cik":"0001870404","company_name":"CERO THERAPEUTICS HOLDINGS, INC.","filed_at":"2025-10-16T23:59:59+00:00","discovered_at":"2026-05-14T18:02:40.929954+00:00","generated_at":"2026-05-17T03:35:50.133086+00:00","sec_items":["1.01","5.03","8.01","9.01"],"event_type":"other_material","sentiment":"positive","materiality_score":0.6,"calibrated_materiality_score":0.6,"confidence":"high","headline":"CERo Therapeutics closes $2.25M initial closing of Series E preferred stock financing, total $7M","bullets":["Initial closing of 3,816 Series E preferred shares raised $2.25M gross proceeds on Oct 16, 2025.","Amendment to SPA added an additional buyer and increased initial closing by $500k; total remains $7M.","Series E preferred stock terms filed as Certificate of Designations on Oct 14, 2025.","Remaining $4.75M to be funded at additional closings under the Securities Purchase Agreement."],"urls":{"canonical":"https://secwatch.observer/filing/0001213900-25-099560","json":"https://secwatch.observer/filing/0001213900-25-099560.json","markdown":"https://secwatch.observer/filing/0001213900-25-099560.md","text":"https://secwatch.observer/filing/0001213900-25-099560.txt","edgar_index":"https://www.sec.gov/Archives/edgar/data/1870404/000121390025099560/0001213900-25-099560-index.htm","edgar_primary_document":"https://www.sec.gov/Archives/edgar/data/1870404/000121390025099560/ea0261237-8k_cero.htm"},"model":{"generated_by":"deepseek-v4-flash:cloud@v2","generated_at":"2026-05-17T03:35:50.133086+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":"9a5b5ccfab8325d9ebf4abb0add1d5f7ac94e38a","claim":"CERO THERAPEUTICS HOLDINGS, INC.: Filed Certificate of Designations establishing Series E convertible preferred stock (effective 2025-10-14).","evidence_excerpt":"On October 14, 2025, the Company filed the Certificate of Designations of Rights and Preferences of the Series E Preferred Stock (the “Certificate of Designations”) for the purpose of designating and establishing the Company’s Series E convertible preferred stock, par value $0.0001 per share (the “Series E Preferred Stock”).","evidence_source":"SEC 8-K Item 5.03/5.05/5.06","evidence_url":"https://www.sec.gov/Archives/edgar/data/1870404/000121390025099560/0001213900-25-099560-index.htm","confidence":0.9,"family_label":"Governance Changes","details":[{"label":"Change","value":"charter amendment"},{"label":"Effective","value":"2025-10-14"}],"fact_type":"governance_change"}],"license":"Source filings: public domain (SEC EDGAR). Summaries (headline + bullets): CC-BY-4.0; attribute https://secwatch.observer"}