GALLAGHER THOMAS P.

PrivateCIK: 2080477
Location

PRINCETON, NJ

GALLAGHER THOMAS P. (Chairman & CEO) exercised options at MIAMI INTERNATIONAL HOLDINGS, INC.

Option exercise — a mechanical event triggered by vesting or expiry. Not a discretionary conviction trade.

M · 1 exercise
InsiderGALLAGHER THOMAS P.CIK 2080477
DirectorOfficer· Chairman & CEO
Since Feb 2026
0.00
Net shares
Net seller
$300.0K
Total acquired
0
Open market trades
0B · 0S
2
Total transactions
25K acquired · 25K disposed
Non-Derivative Transactions1

Common Stock

Direct
M · Option Exercise

Shares

+25K

Price / share

$12.00

Trade value

$299.99K

% of position

5.1%
5/11/2026
485.96K510.96K
Total

Net shares

+25K

Net value

$299.99K

Derivative Transactions1

Incentive Stock Option (Right to Buy)

Direct
M · Option Exercise
Converts to

Common Stock

25K shares

Shares

25K

Strike price

12

Held after

0.00

Exercisable

5/11/2026
GALLAGHER THOMAS P. — Insider Transaction (Form 4) Filed May 13, 2026 | Finecho