{"schema_version":"secwatch.filing_event.v1","accession":"0001213900-25-093936","form_type":"8-K","ticker":"OSTX","cik":"0001795091","company_name":"OS Therapies Inc","filed_at":"2025-09-30T23:59:59+00:00","discovered_at":"2026-05-14T18:02:45.016954+00:00","generated_at":"2026-05-17T05:17:18.803859+00:00","sec_items":["8.01","9.01"],"event_type":"other_material","sentiment":"neutral","materiality_score":0.5,"calibrated_materiality_score":0.5,"confidence":"high","headline":"OS Therapies files prospectus supplement for resale of up to 4.37M shares by selling stockholders","bullets":["Prospectus supplement covers resale of up to 4,373,043 shares of common stock by selling stockholders.","Shares are being registered for resale under existing S-3 shelf (File No. 333-289443) declared effective August 12, 2025.","Company is not issuing new shares or raising capital from this resale registration.","Legal opinion on share legality from Olshan Frome Wolosky LLP filed as Exhibit 5.1.","Filing date: September 30, 2025; no change in business operations or financial guidance."],"urls":{"canonical":"https://secwatch.observer/filing/0001213900-25-093936","json":"https://secwatch.observer/filing/0001213900-25-093936.json","markdown":"https://secwatch.observer/filing/0001213900-25-093936.md","text":"https://secwatch.observer/filing/0001213900-25-093936.txt","edgar_index":"https://www.sec.gov/Archives/edgar/data/1795091/000121390025093936/0001213900-25-093936-index.htm","edgar_primary_document":"https://www.sec.gov/Archives/edgar/data/1795091/000121390025093936/ea0259321-8k_ostherap.htm"},"model":{"generated_by":"deepseek-v4-flash:cloud@v2","generated_at":"2026-05-17T05:17:18.803859+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":[],"license":"Source filings: public domain (SEC EDGAR). Summaries (headline + bullets): CC-BY-4.0; attribute https://secwatch.observer"}