GALLAGHER THOMAS P. (Chairman & CEO) sold 3.1% of their position (54.23K shares) of MIAMI INTERNATIONAL HOLDINGS, INC. on the open market
Open‑market sale worth $2.56M — a minor trim. Review remaining holdings and any 10b5‑1 plan disclosures.
S · 1 sale
Filed: 5/5/2026ACC: 0001628280-26-030147
DirectorOfficer· Chairman & CEO
Since Feb 2026
-54.23K
Net shares
Net seller
$2.56M
Total sold
1
Open market trades
0B · 1S
3
Total transactions
54.23K acquired · 108.46K disposed
Non-Derivative Transactions2
Common Stock
Indirect
Shares
+54.23K
Price / share
$12.00
Trade value
$650.75K
% of position
3.1%
5/4/2026
1.72M→1.78M
Common Stock
Indirect
Shares
−54.23K
Price / share
$47.26
Trade value
$2.56M
% of position
3.1%
5/4/2026
1.78M→1.72M
Total
Net shares
+0.00
Net value
-$1.91M
| Security | Date | Type | Shares | Price / Share | Trade Value | % of Position | Held Before | Held After |
|---|---|---|---|---|---|---|---|---|
| Common Stock Indirect | 5/4/2026 | M · Option Exercise | +54.23K | $12.00 | $650.75K | 3.1% | 1.72M | 1.78M |
| Common Stock Indirect | 5/4/2026 | S · Sale | −54.23K | $47.26 | $2.56M | 3.1% | 1.78M | 1.72M |
| Total | +0.00 | -$1.91M | ||||||
Derivative Transactions1
Nonqualified Stock Option (Right to Buy)
Indirect
Converts to
Common Stock
54.23K shares
Shares
−54.23K
Strike price
12
Held after
225.77K
Exercisable
—
5/4/2026
| Security | Converts To | Date | Type | Shares | Strike Price | Exercisable | Held After |
|---|---|---|---|---|---|---|---|
| Nonqualified Stock Option (Right to Buy) Indirect | Common Stock54.23K shares | 5/4/2026 | M · Option Exercise | −54.23K | 12 | — | 225.77K |