{"schema_version":"secwatch.filing_event.v1","accession":"0001628280-26-027311","form_type":"8-K","ticker":"MIAX","cik":"0001438472","company_name":"MIAMI INTERNATIONAL HOLDINGS, INC.","filed_at":"2026-04-27T23:59:59+00:00","discovered_at":"2026-05-14T18:02:32.293616+00:00","generated_at":"2026-05-15T03:46:04.776733+00:00","sec_items":["5.02"],"event_type":"leadership","sentiment":"neutral","materiality_score":0.25,"calibrated_materiality_score":0.25,"confidence":"high","headline":"Miami International Holdings elects Eric Sites as director to fill vacancy","bullets":["Eric Sites elected to board effective April 24, 2026, filling existing vacancy.","Term until 2026 Annual Meeting of Shareholders or successor elected and qualified.","No committee appointments; compensation same as other non-employee directors.","No family relationships with directors or officers; no reportable transactions.","Entered standard indemnification agreement covering expenses from board service."],"urls":{"canonical":"https://secwatch.observer/filing/0001628280-26-027311","json":"https://secwatch.observer/filing/0001628280-26-027311.json","markdown":"https://secwatch.observer/filing/0001628280-26-027311.md","text":"https://secwatch.observer/filing/0001628280-26-027311.txt","edgar_index":"https://www.sec.gov/Archives/edgar/data/1438472/000162828026027311/0001628280-26-027311-index.htm","edgar_primary_document":"https://www.sec.gov/Archives/edgar/data/1438472/000162828026027311/miax-20260423.htm"},"model":{"generated_by":"deepseek-v4-flash:cloud@v2","generated_at":"2026-05-15T03:46:04.776733+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"}