secwatch.observer — SEC 8-K summary ====================================== Issuer: MIAMI INTERNATIONAL HOLDINGS, INC. (MIAX) CIK: 0001438472 Form: 8-K Filed at: 2025-10-08T23:59:59+00:00 Accession: 0001628280-25-044597 Event type: leadership Sentiment: neutral Materiality: 0.30 Item codes: 5.02 LLM model: deepseek-v4-flash:cloud@v2 Director Jamil Nazarali resigns from Miami International Holdings board, effective October 3, 2025 -------------------------------------------------------------------------------- - Jamil Nazarali resigned as director to pursue other professional opportunities; no dispute with company. - Resignation effective October 3, 2025; no successor named. - Board size reduced; no impact on committee composition disclosed. Source: EDGAR index: https://www.sec.gov/Archives/edgar/data/1438472/000162828025044597/0001628280-25-044597-index.htm Primary doc: https://www.sec.gov/Archives/edgar/data/1438472/000162828025044597/miax-20251003.htm HTML page: https://secwatch.observer/filing/0001628280-25-044597 License: Source filings: public domain (SEC EDGAR). Summaries (headline + bullets): CC-BY-4.0; attribute https://secwatch.observer