GALLAGHER THOMAS P.

PrivateCIK: 2080477
Location

PRINCETON, NJ

GALLAGHER THOMAS P. (Chairman & CEO) sold 3.9% of their position (70K shares) of MIAMI INTERNATIONAL HOLDINGS, INC. on the open market

Open‑market sale worth $2.95M — a minor trim. Review remaining holdings and any 10b5‑1 plan disclosures.

S · 2 sales
InsiderGALLAGHER THOMAS P.CIK 2080477
DirectorOfficer· Chairman & CEO
Since Feb 2026
-70K
Net shares
Net seller
$2.95M
Total sold
2
Open market trades
0B · 2S
6
Total transactions
70K acquired · 140K disposed
Non-Derivative Transactions4

Common Stock

Indirect
M · Option Exercise

Shares

+41.77K

Price / share

$12.00

Trade value

$501.26K

% of position

2.4%
7/6/2026
1.72M1.77M

Common Stock

Indirect
S · Sale

Shares

41.77K

Price / share

$42.09

Trade value

$1.76M

% of position

2.4%
7/6/2026
1.77M1.72M

Common Stock

Indirect
M · Option Exercise

Shares

+28.23K

Price / share

$12.00

Trade value

$338.74K

% of position

1.6%
7/7/2026
1.72M1.75M

Common Stock

Indirect
S · Sale

Shares

28.23K

Price / share

$42.27

Trade value

$1.19M

% of position

1.6%
7/7/2026
1.75M1.72M
Total

Net shares

+0.00

Net value

-$2.11M

Derivative Transactions2

Nonqualified Stock Option (Right to Buy)

Indirect
M · Option Exercise
Converts to

Common Stock

41.77K shares

Shares

41.77K

Strike price

12

Held after

98.23K

Exercisable

7/6/2026

Nonqualified Stock Option (Right to Buy)

Indirect
M · Option Exercise
Converts to

Common Stock

28.23K shares

Shares

28.23K

Strike price

12

Held after

70K

Exercisable

7/7/2026