---
schema_version: "secwatch.filing_event.v1"
accession: "0001628280-25-044597"
form_type: "8-K"
ticker: "MIAX"
cik: "0001438472"
company_name: "MIAMI INTERNATIONAL HOLDINGS, INC."
filed_at: "2025-10-08T23:59:59+00:00"
generated_at: "2026-05-17T04:18:19.636056+00:00"
event_type: "leadership"
sentiment: "neutral"
materiality_score: 0.3
calibrated_materiality_score: 0.3
confidence: "high"
source: SEC EDGAR
---

# Director Jamil Nazarali resigns from Miami International Holdings board, effective October 3, 2025

## Summary
- 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.

## SEC filing metadata
- accession: 0001628280-25-044597
- form_type: 8-K
- ticker: MIAX
- cik: 0001438472
- company_name: MIAMI INTERNATIONAL HOLDINGS, INC.
- filed_at: 2025-10-08T23:59:59+00:00
- event_type: leadership
- sentiment: neutral
- materiality_score: 0.3
- calibrated_materiality_score: 0.3
- confidence: high
- sec_items: 5.02
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1438472/000162828025044597/0001628280-25-044597-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1438472/000162828025044597/miax-20251003.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001628280-25-044597
- JSON: https://secwatch.observer/filing/0001628280-25-044597.json
- Plain text: https://secwatch.observer/filing/0001628280-25-044597.txt

This AI-assisted summary is a reading aid. Review the linked SEC EDGAR filing before relying on any specific claim.