SCHAFER DOUGLAS M. JR

PrivateCIK: 2079445
Location

PRINCETON, NJ

SCHAFER DOUGLAS M. JR (EVP and CIO) sold 10.8% of their position (48K shares) of MIAMI INTERNATIONAL HOLDINGS, INC. on the open market

Open‑market sale worth $2.27M — 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
$2.27M
Total sold
1
Open market trades
0B · 1S
3
Total transactions
48K acquired · 96K disposed
Non-Derivative Transactions2

Common Stock

Direct
M · Option Exercise

Shares

+48K

Price / share

$12.00

Trade value

$576K

% of position

12.1%
5/4/2026
396.68K444.68K

Common Stock

Direct
S · Sale

Shares

48K

Price / share

$47.25

Trade value

$2.27M

% of position

10.8%
5/4/2026
444.68K396.68K
Total

Net shares

+0.00

Net value

-$1.69M

Derivative Transactions1

Nonqualified Stock Option (Right to Buy)

Direct
M · Option Exercise
Converts to

Common Stock

48K shares

Shares

48K

Strike price

12

Held after

54K

Exercisable

5/4/2026
SCHAFER DOUGLAS M. JR — Insider Transaction (Form 4) Filed May 5, 2026 | Finecho