{"schema_version":"secwatch.filing_event.v1","accession":"0001104659-25-002599","form_type":"8-K","ticker":"MBIO","cik":"0001680048","company_name":"MUSTANG BIO, INC.","filed_at":"2025-01-10T23:59:59+00:00","discovered_at":"2026-05-14T18:03:04.415528+00:00","generated_at":"2026-05-28T05:12:28.947239+00:00","sec_items":["5.07"],"event_type":"other_material","sentiment":"neutral","materiality_score":0.7,"calibrated_materiality_score":0.15,"confidence":"high","headline":"Mustang Bio stockholders authorize issuance of up to 34.8M shares underlying warrants","bullets":["Stockholders representing ~57% voting power executed written consent approving warrant share issuance.","Up to 34,767,934 shares of common stock may be issued under warrants to an institutional investor and H.C. Wainwright.","Issuance complies with Nasdaq Listing Rule 5635(d) for transactions exceeding 20% of outstanding shares.","Consent includes 6,552,781 common shares and 250,000 Class A Preferred shares (each with 285 votes).","Previously disclosed Inducement Letter (Oct 24, 2024) and Engagement Letter (Oct 23, 2024) are the basis."],"urls":{"canonical":"https://secwatch.observer/filing/0001104659-25-002599","json":"https://secwatch.observer/filing/0001104659-25-002599.json","markdown":"https://secwatch.observer/filing/0001104659-25-002599.md","text":"https://secwatch.observer/filing/0001104659-25-002599.txt","edgar_index":"https://www.sec.gov/Archives/edgar/data/1680048/000110465925002599/0001104659-25-002599-index.htm","edgar_primary_document":"https://www.sec.gov/Archives/edgar/data/1680048/000110465925002599/tm252981d1_8k.htm"},"model":{"generated_by":"deepseek-v4-flash:cloud@v2","generated_at":"2026-05-28T05:12:28.947239+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"}