{"schema_version":"secwatch.filing_event.v1","accession":"0001213900-25-083405","form_type":"8-K","ticker":"MBVI","cik":"0002073928","company_name":"M3-Brigade Acquisition VI Corp.","filed_at":"2025-09-02T23:59:59+00:00","discovered_at":"2026-05-14T18:02:45.945903+00:00","generated_at":"2026-05-17T09:01:51.302491+00:00","sec_items":["1.01","3.02","5.02","5.03","8.01","9.01"],"event_type":"other_material","sentiment":"neutral","materiality_score":0.75,"calibrated_materiality_score":0.75,"confidence":"high","headline":"M3-Brigade Acquisition VI closes $345M IPO; trust funded for business combination","bullets":["IPO closed Aug 28, 2025: 34,500,000 units at $10.00 per unit, gross proceeds $345M (full over-allotment exercised).","$345M placed in trust account; funds released only upon business combination, redemption, or amendment.","Private placement of 5,333,333 warrants at $1.50 each raised $8M from sponsor and Cantor.","Benjamin Fader-Rattner appointed independent director, chairs Audit and Compensation Committees.","Company must complete initial business combination within 24 months (by Aug 28, 2027) or redeem public shares."],"urls":{"canonical":"https://secwatch.observer/filing/0001213900-25-083405","json":"https://secwatch.observer/filing/0001213900-25-083405.json","markdown":"https://secwatch.observer/filing/0001213900-25-083405.md","text":"https://secwatch.observer/filing/0001213900-25-083405.txt","edgar_index":"https://www.sec.gov/Archives/edgar/data/2073928/000121390025083405/0001213900-25-083405-index.htm","edgar_primary_document":"https://www.sec.gov/Archives/edgar/data/2073928/000121390025083405/ea0255430-8k_m3brig6.htm"},"model":{"generated_by":"deepseek-v4-flash:cloud@v2","generated_at":"2026-05-17T09:01:51.302491+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":[{"claim_id":"3305dda69399540f0aafbeae4343ac7a684c6084","claim":"M3-Brigade Acquisition VI Corp.: Amended and restated memorandum and articles of association filed effective August 26, 2025 in connection with IPO (effective 2025-08-26).","evidence_excerpt":"On August 26, 2025, in connection with the IPO, the Company filed its amended and restated memorandum and articles of association (the “ Amended and Restated Memorandum and Articles of Association ”) with the Cayman Islands Registrar of Companies, which was effective on August 26, 2025.","evidence_source":"SEC 8-K Item 5.03/5.05/5.06","evidence_url":"https://www.sec.gov/Archives/edgar/data/2073928/000121390025083405/0001213900-25-083405-index.htm","confidence":0.9,"family_label":"Governance Changes","details":[{"label":"Change","value":"charter amendment"},{"label":"Effective","value":"2025-08-26"}],"fact_type":"governance_change"}],"license":"Source filings: public domain (SEC EDGAR). Summaries (headline + bullets): CC-BY-4.0; attribute https://secwatch.observer"}