Gallagher Thomas P.'s Form 4 filing
Miami International Holdings, Inc. (MIAX) · filed Sep 4, 2026
- Accession no.
- 0002080477-26-000018
- Filed
- Sep 4, 2026, 4:35 PM ET
- Trade date
- Sep 3, 2026
- Filing delay
- 1 day
- Rule 10b5-1 plan
- Checked
This filing lists 6 non-derivative transactions and 5 derivative transactions. Open-market sales total $1.99M. It was filed 1 day after the trade.
Reporting owners
A Form 4 can have several reporting owners, such as a person and a fund they control. Trade tables show the first one.
| Owner | Relationship to the company |
|---|---|
| Gallagher Thomas P.CIK 0002080477 | Director, Officer (Chairman & CEO) |
Non-derivative securities (Table I)
Acquisitions and disposals of common stock and similar shares, one row per line on the filing.
| Trade date | Security | Transaction | Shares | Price | Value | Shares after | Ownership | Flags |
|---|---|---|---|---|---|---|---|---|
| Sep 3, 2026 | Common Stock | MOption exerciseAcquired | +47,000 | $12.00 | +$564,000 | 1,470,275 | Indirect | |
| Sep 3, 2026 | Common Stock | SSaleDisposed | −47,000 | $42.43 | −$1,994,210 | 1,423,275 | Indirect | |
| Sep 3, 2026 | Common Stock | MOption exerciseAcquired | +16,666 | $12.00 | +$199,992 | 760,605 | Direct | |
| Sep 3, 2026 | Common Stock | MOption exerciseAcquired | +8,333 | $12.00 | +$99,996 | 768,938 | Direct | |
| Sep 3, 2026 | Common Stock | MOption exerciseAcquired | +13,140 | $15.22 | +$199,990.8 | 782,078 | Direct | |
| Sep 3, 2026 | Common Stock | MOption exerciseAcquired | +4,464 | $22.40 | +$99,993.6 | 786,542 | Direct |
Derivative securities (Table II)
Options, warrants, restricted stock units and similar. Shares are the underlying shares; price and value are for the derivative itself, and the holding after is in derivative units.
| Trade date | Security | Transaction | Underlying shares | Unit price | Value | Held after | Ownership | Flags |
|---|---|---|---|---|---|---|---|---|
| Sep 3, 2026 | Common Stock | MOption exerciseDisposed | −47,000 | $0.00 | $0 | 188,000 | Indirect | |
| Sep 3, 2026 | Common Stock | MOption exerciseDisposed | −16,666 | $0.00 | $0 | 0 | Direct | |
| Sep 3, 2026 | Common Stock | MOption exerciseDisposed | −8,333 | $0.00 | $0 | 0 | Direct | |
| Sep 3, 2026 | Common Stock | MOption exerciseDisposed | −13,140 | $0.00 | $0 | 0 | Direct | |
| Sep 3, 2026 | Common Stock | MOption exerciseDisposed | −4,464 | $0.00 | $0 | 8,928 | Direct |
Footnotes
Livermore does not store Form 4 footnotes. For price ranges, how indirect holdings are held and trading plan details, read the original on SEC EDGAR.