{"schema_version":"secwatch.filing_event.v1","accession":"0000950142-25-003127","form_type":"8-K","ticker":"MBVI","cik":"0002073928","company_name":"M3-Brigade Acquisition VI Corp.","filed_at":"2025-12-05T23:59:59+00:00","discovered_at":"2026-05-14T18:02:41.535242+00:00","generated_at":"2026-05-16T14:22:41.947759+00:00","sec_items":["5.02","9.01"],"event_type":"leadership","sentiment":"neutral","materiality_score":0.25,"calibrated_materiality_score":0.25,"confidence":"high","headline":"M3-Brigade Acquisition VI appoints Frank M. Garrison, Jr. as independent director","bullets":["Appointed as independent director effective December 2, 2025.","Appointed to Audit and Compensation Committees of the Board.","Entered into standard letter agreement and indemnity agreement with the Company.","Mr. Garrison has no pre-existing arrangements or related-party transactions requiring disclosure."],"urls":{"canonical":"https://secwatch.observer/filing/0000950142-25-003127","json":"https://secwatch.observer/filing/0000950142-25-003127.json","markdown":"https://secwatch.observer/filing/0000950142-25-003127.md","text":"https://secwatch.observer/filing/0000950142-25-003127.txt","edgar_index":"https://www.sec.gov/Archives/edgar/data/2073928/000095014225003127/0000950142-25-003127-index.htm","edgar_primary_document":"https://www.sec.gov/Archives/edgar/data/2073928/000095014225003127/eh250713100_8k.htm"},"model":{"generated_by":"deepseek-v4-flash:cloud@v2","generated_at":"2026-05-16T14:22:41.947759+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"}