SCHAFER DOUGLAS M. JR (EVP and CIO) sold 11.0% of their position (48K shares) of MIAMI INTERNATIONAL HOLDINGS, INC. on the open market
Open‑market sale worth $1.94M — a moderate reduction. Review remaining holdings and any 10b5‑1 plan disclosures.
S · 1 sale
Filed: 9/4/2026ACC: 0002079445-26-000017
Officer· EVP and CIO
Since Feb 2026
-48K
Net shares
Net seller
$1.94M
Total sold
1
Open market trades
0B · 1S
5
Total transactions
48K acquired · 96K disposed
Non-Derivative Transactions3
Common Stock
Direct
Shares
+43.33K
Price / share
$12.00
Trade value
$520.01K
% of position
11.2%
9/2/2026
387.41K→430.75K
Common Stock
Direct
Shares
+4.67K
Price / share
$12.00
Trade value
$55.99K
% of position
1.1%
9/2/2026
430.75K→435.41K
Common Stock
Direct
Shares
−48K
Price / share
$40.48
Trade value
$1.94M
% of position
11.0%
9/2/2026
435.41K→387.41K
Total
Net shares
+0.00
Net value
-$1.37M
| Security | Date | Type | Shares | Price / Share | Trade Value | % of Position | Held Before | Held After |
|---|---|---|---|---|---|---|---|---|
| Common Stock Direct | 9/2/2026 | M · Option Exercise | +43.33K | $12.00 | $520.01K | 11.2% | 387.41K | 430.75K |
| Common Stock Direct | 9/2/2026 | M · Option Exercise | +4.67K | $12.00 | $55.99K | 1.1% | 430.75K | 435.41K |
| Common Stock Direct | 9/2/2026 | S · Sale | −48K | $40.48 | $1.94M | 11.0% | 435.41K | 387.41K |
| Total | +0.00 | -$1.37M | ||||||
Derivative Transactions2
Nonqualified Stock Option (Right to Buy)
Direct
Converts to
Common Stock
43.33K shares
Shares
−43.33K
Strike price
12
Held after
0.00
Exercisable
—
9/2/2026
Nonqualified Stock Option (Right to Buy)
Direct
Converts to
Common Stock
4.67K shares
Shares
−4.67K
Strike price
12
Held after
195.33K
Exercisable
—
9/2/2026
| Security | Converts To | Date | Type | Shares | Strike Price | Exercisable | Held After |
|---|---|---|---|---|---|---|---|
| Nonqualified Stock Option (Right to Buy) Direct | Common Stock43.33K shares | 9/2/2026 | M · Option Exercise | −43.33K | 12 | — | 0.00 |
| Nonqualified Stock Option (Right to Buy) Direct | Common Stock4.67K shares | 9/2/2026 | M · Option Exercise | −4.67K | 12 | — | 195.33K |