{"schema_version":"secwatch.filing_event.v1","accession":"0001079973-25-000781","form_type":"8-K","ticker":"CDIO","cik":"0001870144","company_name":"Cardio Diagnostics Holdings, Inc.","filed_at":"2025-05-13T23:59:59+00:00","discovered_at":"2026-05-14T18:02:50.304371+00:00","generated_at":"2026-05-21T18:33:04.532001+00:00","sec_items":["3.03","5.03","7.01","9.01"],"event_type":"other","sentiment":"neutral","materiality_score":0.75,"calibrated_materiality_score":0.75,"confidence":"high","headline":"Cardio Diagnostics announces 1-for-30 reverse stock split to regain Nasdaq compliance","bullets":["Reverse split at 1:30, effective after close May 12; trading begins May 13 under CDIO.","Outstanding shares reduced from ~52M to ~1.7M; authorized shares remain 300M.","New CUSIP 14159C202; fractional shares rounded up/down by DTC.","Split approved by shareholders Nov 15, 2024; Board set ratio on April 10, 2025.","Split adjusts warrants, options, and equity plan shares proportionately."],"urls":{"canonical":"https://secwatch.observer/filing/0001079973-25-000781","json":"https://secwatch.observer/filing/0001079973-25-000781.json","markdown":"https://secwatch.observer/filing/0001079973-25-000781.md","text":"https://secwatch.observer/filing/0001079973-25-000781.txt","edgar_index":"https://www.sec.gov/Archives/edgar/data/1870144/000107997325000781/0001079973-25-000781-index.htm","edgar_primary_document":"https://www.sec.gov/Archives/edgar/data/1870144/000107997325000781/cdio_8k.htm"},"model":{"generated_by":"deepseek-v4-flash:cloud@v2","generated_at":"2026-05-21T18:33:04.532001+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":"6cd8149aaa9a5e9d98886eecfe12da39c4c296f8","claim":"Cardio Diagnostics Holdings, Inc.: Certificate of Amendment to effect a 1-for-30 reverse stock split, filed with Delaware Secretary of State effective after market close on May 12, 2025 (effective 2025-05-12).","evidence_excerpt":"On May 12, 2025, the Company filed the Certificate of Amendment with the Delaware Secretary of State to effect the Reverse Stock Split, effective immediately after the close of trading on Nasdaq on May 12, 2025 (the \"Effective Time\").","evidence_source":"SEC 8-K Item 5.03/5.05/5.06","evidence_url":"https://www.sec.gov/Archives/edgar/data/1870144/000107997325000781/0001079973-25-000781-index.htm","confidence":0.9,"family_label":"Governance Changes","details":[{"label":"Change","value":"charter amendment"},{"label":"Effective","value":"2025-05-12"}],"fact_type":"governance_change"}],"license":"Source filings: public domain (SEC EDGAR). Summaries (headline + bullets): CC-BY-4.0; attribute https://secwatch.observer"}