SCHAFER DOUGLAS M. JR

PrivateCIK: 2079445
Location

PRINCETON, NJ

SCHAFER DOUGLAS M. JR (EVP and CIO) sold 2.0% of their position (8K shares) of MIAMI INTERNATIONAL HOLDINGS, INC. on the open market

Open‑market sale worth $280.5K — a minor trim. Review remaining holdings and any 10b5‑1 plan disclosures.

S · 1 sale
InsiderSCHAFER DOUGLAS M. JRCIK 2079445
→
Officer· EVP and CIO
Since Feb 2026
-8K
Net shares
Net seller
$280.5K
Total sold
1
Open market trades
0B · 1S
3
Total transactions
8K acquired · 16K disposed
Non-Derivative Transactions2

Common Stock

Direct
M · Option Exercise

Shares

+8K

Price / share

$12.00

Trade value

$96K

% of position

2.1%
10/22/2026
387.41K→395.41K

Common Stock

Direct
S · Sale

Shares

−8K

Price / share

$35.06

Trade value

$280.48K

% of position

2.0%
10/22/2026
395.41K→387.41K
Total

Net shares

+0.00

Net value

-$184.48K

Derivative Transactions1

Nonqualified Stock Option (Right to Buy)

Direct
M · Option Exercise
Converts to

Common Stock

8K shares

Shares

−8K

Strike price

12

Held after

147.33K

Exercisable

—

10/22/2026
SCHAFER DOUGLAS M. JR — Insider Transaction (Form 4) Filed Oct 26, 2026 | Finecho