GALLAGHER THOMAS P. (Chairman & CEO) sold 2.7% of their position (48.33K shares) of MIAMI INTERNATIONAL HOLDINGS, INC. on the open market
Open‑market sale worth $2.21M — a minor trim. Review remaining holdings and any 10b5‑1 plan disclosures.
S · 1 sale
Filed: 8/6/2026ACC: 0002080477-26-000014
DirectorOfficer· Chairman & CEO
Since Feb 2026
-48.33K
Net shares
Net seller
$2.21M
Total sold
1
Open market trades
0B · 1S
3
Total transactions
48.33K acquired · 96.67K disposed
Non-Derivative Transactions2
Common Stock
Indirect
Shares
+48.33K
Price / share
$12.00
Trade value
$580.01K
% of position
2.8%
8/4/2026
1.72M→1.77M
Common Stock
Indirect
Shares
−48.33K
Price / share
$45.69
Trade value
$2.21M
% of position
2.7%
8/4/2026
1.77M→1.72M
Total
Net shares
+0.00
Net value
-$1.63M
| Security | Date | Type | Shares | Price / Share | Trade Value | % of Position | Held Before | Held After |
|---|---|---|---|---|---|---|---|---|
| Common Stock Indirect | 8/4/2026 | M · Option Exercise | +48.33K | $12.00 | $580.01K | 2.8% | 1.72M | 1.77M |
| Common Stock Indirect | 8/4/2026 | S · Sale | −48.33K | $45.69 | $2.21M | 2.7% | 1.77M | 1.72M |
| Total | +0.00 | -$1.63M | ||||||
Derivative Transactions1
Nonqualified Stock Option (Right to Buy)
Indirect
Converts to
Common Stock
48.33K shares
Shares
−48.33K
Strike price
12
Held after
235K
Exercisable
—
8/4/2026
| Security | Converts To | Date | Type | Shares | Strike Price | Exercisable | Held After |
|---|---|---|---|---|---|---|---|
| Nonqualified Stock Option (Right to Buy) Indirect | Common Stock48.33K shares | 8/4/2026 | M · Option Exercise | −48.33K | 12 | — | 235K |