Form 4: Miami International Holdings CEO Sells Shares
Insider Transaction (Form 4)
Thomas P. Gallagher, Chairman & CEO and a Director of Miami International Holdings, Inc., sold 70,000 shares of common stock on July 13, 2026 for $42.52 per share.
Summary
- Option exercise/conversion: acquired 70,000 Common Stock at $12.00 ($840,000) on July 13, 2026; holds 1,793,275 after (Indirect).
- Open-market sale: disposed of 70,000 Common Stock at $42.52 ($2,976,400) on July 13, 2026; holds 1,723,275 after (Indirect).
- Option exercise/conversion: disposed of 70,000 Nonqualified Stock Option (Right to Buy) on July 13, 2026 (Indirect).
Sentiment
Score: 4
Explanation: StockSavvy.ai views this as a mildly negative but low-conviction signal: an insider sold $2,976,400 of stock under a pre-arranged Rule 10b5-1 plan, which is typically routine.
Insider Transactions
Thomas P. Gallagher — Director, Officer (Chairman & CEO)
Transaction made under a Rule 10b5-1 trading plan.
| Date | Transaction | Security | Shares | Price | Value | Held After |
|---|---|---|---|---|---|---|
| 2026-07-13 | Option exercise/conversion | Common Stock | 70,000 | $12 | $840.0K | 1,793,275 |
| 2026-07-13 | Open-market sale | Common Stock | 70,000 | $43 | $3.0M | 1,723,275 |
| 2026-07-13 | Option exercise/conversion | Nonqualified Stock Option (Right to Buy) | 70,000 | — | — | 0 |
Key Dates
| Date | Description |
|---|---|
| 2026-07-13 | Option exercise/conversion (70,000 shares) |
| 2026-07-13 | Open-market sale (70,000 shares) |
| 2026-07-13 | Option exercise/conversion (70,000 shares) |
Keywords
insider transaction, Form 4, MIAX, MIAMI INTERNATIONAL HOLDINGS, INC., bearish, Thomas P. Gallagher
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