---
schema_version: "secwatch.filing_event.v1"
accession: "0001438472-26-000036"
form_type: "8-K"
ticker: "MIAX"
cik: "0001438472"
company_name: "MIAMI INTERNATIONAL HOLDINGS, INC."
filed_at: "2026-06-22T20:59:30+00:00"
generated_at: "2026-06-22T21:00:10.441265+00:00"
event_type: "other_material"
sentiment: "neutral"
materiality_score: 0.5
calibrated_materiality_score: 0.5
confidence: "high"
source: SEC EDGAR
---

# Miami International Holdings issues ~1.88M shares in unregistered sales; cancels 2.36M warrants

## Summary
- Issued 1,881,554 shares from Apr 1 to Jun 17, 2026, including 12,500 shares for $175,000 cash exercise.
- Cashless exercises of warrants surrendered 102,790 shares for 355,065 warrants exercised (aggregate exercise price $4,848,503).
- Exchange Agreement with accredited investor: 1,616,779 shares issued to cancel 2,362,279 warrants at $14.50 exercise price.
- Sales exempt under Section 4(a)(2) and 3(a)(9) of Securities Act; no registration.

## SEC filing metadata
- accession: 0001438472-26-000036
- form_type: 8-K
- ticker: MIAX
- cik: 0001438472
- company_name: MIAMI INTERNATIONAL HOLDINGS, INC.
- filed_at: 2026-06-22T20:59:30+00:00
- event_type: other_material
- sentiment: neutral
- materiality_score: 0.5
- calibrated_materiality_score: 0.5
- confidence: high
- sec_items: 3.02
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1438472/000143847226000036/0001438472-26-000036-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1438472/000143847226000036/miax-20260617.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001438472-26-000036
- JSON: https://secwatch.observer/filing/0001438472-26-000036.json
- Plain text: https://secwatch.observer/filing/0001438472-26-000036.txt

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