{"schema_version":"secwatch.filing_event.v1","accession":"0001558370-23-002778","form_type":"8-K","ticker":"MBIO","cik":"0001680048","company_name":"MUSTANG BIO, INC.","filed_at":"2023-03-03T23:59:59+00:00","discovered_at":"2026-05-14T18:03:46.113828+00:00","generated_at":"2026-06-18T13:13:03.254168+00:00","sec_items":["5.07"],"event_type":"other_material","sentiment":"neutral","materiality_score":0.6,"calibrated_materiality_score":0.6,"confidence":"high","headline":"Mustang Bio shareholders authorize board to effect reverse stock split up to 20:1","bullets":["Holders of ~62.2% voting power signed written consent approving reverse stock split.","Board authorized to set ratio between 5:1 and 20:1, with split to occur before Jan 31, 2024.","Consent signed by holders of 22,630,620 common shares and 250,000 Class A Preferred shares.","Board also approved the reverse stock split and amendment to certificate of incorporation."],"urls":{"canonical":"https://secwatch.observer/filing/0001558370-23-002778","json":"https://secwatch.observer/filing/0001558370-23-002778.json","markdown":"https://secwatch.observer/filing/0001558370-23-002778.md","text":"https://secwatch.observer/filing/0001558370-23-002778.txt","edgar_index":"https://www.sec.gov/Archives/edgar/data/1680048/000155837023002778/0001558370-23-002778-index.htm","edgar_primary_document":"https://www.sec.gov/Archives/edgar/data/1680048/000155837023002778/tmb-20230303x8k.htm"},"model":{"generated_by":"deepseek-v4-flash:cloud@v2","generated_at":"2026-06-18T13:13:03.254168+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"}