GALLAGHER THOMAS P. (Chairman & CEO) exercised options at MIAMI INTERNATIONAL HOLDINGS, INC.
Option exercise — a mechanical event triggered by vesting or expiry. Not a discretionary conviction trade.
M · 1 exercise
Filed: 5/13/2026ACC: 0002080477-26-000008
DirectorOfficer· Chairman & CEO
Since Feb 2026
0.00
Net shares
Net seller
$300.0K
Total acquired
0
Open market trades
0B · 0S
2
Total transactions
25K acquired · 25K disposed
Non-Derivative Transactions1
Common Stock
Direct
Shares
+25K
Price / share
$12.00
Trade value
$299.99K
% of position
5.1%
5/11/2026
485.96K→510.96K
Total
Net shares
+25K
Net value
$299.99K
| Security | Date | Type | Shares | Price / Share | Trade Value | % of Position | Held Before | Held After |
|---|---|---|---|---|---|---|---|---|
| Common Stock Direct | 5/11/2026 | M · Option Exercise | +25K | $12.00 | $299.99K | 5.1% | 485.96K | 510.96K |
| Total | +25K | $299.99K | ||||||
Derivative Transactions1
Incentive Stock Option (Right to Buy)
Direct
Converts to
Common Stock
25K shares
Shares
−25K
Strike price
12
Held after
0.00
Exercisable
—
5/11/2026
| Security | Converts To | Date | Type | Shares | Strike Price | Exercisable | Held After |
|---|---|---|---|---|---|---|---|
| Incentive Stock Option (Right to Buy) Direct | Common Stock25K shares | 5/11/2026 | M · Option Exercise | −25K | 12 | — | 0.00 |