{"schema_version":"secwatch.filing_event.v1","accession":"0001104659-24-023665","form_type":"8-K","ticker":"MBIO","cik":"0001680048","company_name":"MUSTANG BIO, INC.","filed_at":"2024-02-14T23:59:59+00:00","discovered_at":"2026-05-14T18:03:25.088487+00:00","generated_at":"2026-06-06T02:25:43.625941+00:00","sec_items":["8.01"],"event_type":"regulatory","sentiment":"neutral","materiality_score":0.6,"calibrated_materiality_score":0.6,"confidence":"high","headline":"Mustang Bio and uBriGene withdraw and re-file CFIUS notice; new 45-day review period begins Feb 13","bullets":["On Feb 12, 2024, CFIUS granted request to withdraw and re-file the joint voluntary notice for the transaction.","New 45-day review period started Feb 13, 2024, concluding no later than March 28, 2024.","If CFIUS does not conclude by March 28, the proceeding will transition to a second 45-day investigation phase.","The CFIUS review relates to Mustang's sale of its Worcester cell processing facility and associated assets to uBriGene.","CFIUS clearance was not a condition to closing the transaction, but is being pursued voluntarily."],"urls":{"canonical":"https://secwatch.observer/filing/0001104659-24-023665","json":"https://secwatch.observer/filing/0001104659-24-023665.json","markdown":"https://secwatch.observer/filing/0001104659-24-023665.md","text":"https://secwatch.observer/filing/0001104659-24-023665.txt","edgar_index":"https://www.sec.gov/Archives/edgar/data/1680048/000110465924023665/0001104659-24-023665-index.htm","edgar_primary_document":"https://www.sec.gov/Archives/edgar/data/1680048/000110465924023665/tm246262d1_8k.htm"},"model":{"generated_by":"deepseek-v4-flash:cloud@v2","generated_at":"2026-06-06T02:25:43.625941+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"}