{"schema_version":"secwatch.filing_event.v1","accession":"0001628280-25-039636","form_type":"8-K","ticker":"HTFL","cik":"0001464521","company_name":"Heartflow, Inc.","filed_at":"2025-08-11T23:59:59+00:00","discovered_at":"2026-05-14T18:02:44.037502+00:00","generated_at":"2026-05-17T15:21:53.215561+00:00","sec_items":["5.03","8.01","9.01"],"event_type":"other_material","sentiment":"positive","materiality_score":0.9,"calibrated_materiality_score":0.9,"confidence":"high","headline":"Heartflow completes IPO of 19.2M shares at $19.00; gross proceeds ~$364M","bullets":["IPO closed August 11, 2025; 19,166,667 shares sold including 2.5M overallotment shares.","Public offering price $19.00 per share; gross proceeds approximately $364 million.","Amended and restated certificate of incorporation and bylaws effective upon IPO closing.","Common stock now trades on Nasdaq Global Select Market under symbol HTFL."],"urls":{"canonical":"https://secwatch.observer/filing/0001628280-25-039636","json":"https://secwatch.observer/filing/0001628280-25-039636.json","markdown":"https://secwatch.observer/filing/0001628280-25-039636.md","text":"https://secwatch.observer/filing/0001628280-25-039636.txt","edgar_index":"https://www.sec.gov/Archives/edgar/data/1464521/000162828025039636/0001628280-25-039636-index.htm","edgar_primary_document":"https://www.sec.gov/Archives/edgar/data/1464521/000162828025039636/heartflow-8xkclosing.htm"},"model":{"generated_by":"deepseek-v4-flash:cloud@v2","generated_at":"2026-05-17T15:21:53.215561+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":"072520f74e5d81aaabf1510ad449647fbda3c290","claim":"Heartflow, Inc.: Amended and Restated Certificate of Incorporation became effective upon closing of IPO (effective 2025-08-11).","evidence_excerpt":"In connection with the closing of an initial public offering by Heartflow, Inc. (the “Company”) on August 11, 2025, the Company’s Amended and Restated Certificate of Incorporation and Amended and Restated Bylaws became effective.","evidence_source":"SEC 8-K Item 5.03/5.05/5.06","evidence_url":"https://www.sec.gov/Archives/edgar/data/1464521/000162828025039636/0001628280-25-039636-index.htm","confidence":0.9,"family_label":"Governance Changes","details":[{"label":"Change","value":"charter amendment"},{"label":"Effective","value":"2025-08-11"}],"fact_type":"governance_change"},{"claim_id":"2661a260ed09a961ab0a352227a8d0dfe84c788a","claim":"Heartflow, Inc.: Amended and Restated Bylaws became effective upon closing of IPO (effective 2025-08-11).","evidence_excerpt":"In connection with the closing of an initial public offering by Heartflow, Inc. (the “Company”) on August 11, 2025, the Company’s Amended and Restated Certificate of Incorporation and Amended and Restated Bylaws became effective.","evidence_source":"SEC 8-K Item 5.03/5.05/5.06","evidence_url":"https://www.sec.gov/Archives/edgar/data/1464521/000162828025039636/0001628280-25-039636-index.htm","confidence":0.9,"family_label":"Governance Changes","details":[{"label":"Change","value":"bylaw amendment"},{"label":"Effective","value":"2025-08-11"}],"fact_type":"governance_change"}],"license":"Source filings: public domain (SEC EDGAR). Summaries (headline + bullets): CC-BY-4.0; attribute https://secwatch.observer"}