SCHAFER DOUGLAS M. JR

PrivateCIK: 2079445
Location

PRINCETON, NJ

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 $1.98M — a moderate reduction. Review remaining holdings and any 10b5‑1 plan disclosures.

S · 1 sale
InsiderSCHAFER DOUGLAS M. JRCIK 2079445
Officer· EVP and CIO
Since Feb 2026
-48K
Net shares
Net seller
$1.98M
Total sold
1
Open market trades
0B · 1S
5
Total transactions
48K acquired · 96K disposed
Non-Derivative Transactions3

Common Stock

Direct
M · Option Exercise

Shares

+6K

Price / share

$12.00

Trade value

$72K

% of position

1.5%
7/2/2026
387.41K393.41K

Common Stock

Direct
M · Option Exercise

Shares

+42K

Price / share

$12.00

Trade value

$504K

% of position

10.7%
7/2/2026
393.41K435.41K

Common Stock

Direct
S · Sale

Shares

48K

Price / share

$41.22

Trade value

$1.98M

% of position

11.0%
7/2/2026
435.41K387.41K
Total

Net shares

+0.00

Net value

-$1.40M

Derivative Transactions2

Nonqualified Stock Option (Right to Buy)

Direct
M · Option Exercise
Converts to

Common Stock

6K shares

Shares

6K

Strike price

12

Held after

0.00

Exercisable

7/2/2026

Nonqualified Stock Option (Right to Buy)

Direct
M · Option Exercise
Converts to

Common Stock

42K shares

Shares

42K

Strike price

12

Held after

91.33K

Exercisable

7/2/2026