STAHLIN PAUL reported 2 transactions at MIAMI INTERNATIONAL HOLDINGS, INC.

Review the transaction codes below to understand the nature of each event.

STAHLIN PAUL

Filed: 8/19/2025ACC: 0001628280-25-040797

InsiderSTAHLIN PAULCIK 1764337

→

IssuerMIAMI INTERNATIONAL HOLDINGS, INC.CIK 1438472

Director

Since Aug 2025

0.00

Net shares

Net seller

$0.00

Total acquired

Open market trades

0B · 0S

Total transactions

125.47K acquired · 125.47K disposed

Non-Derivative Transactions2

Common Stock

Direct

C · Conversion

+10K

Price / share

—

Trade value

—

% of position

66.3%

8/15/2025

15.08K→25.08K

Common Stock

Direct

C · Conversion

+14.08K

Price / share

—

Trade value

—

% of position

128.0%

8/15/2025

11K→25.08K

Total

Net shares

+24.08K

Net value

$0.00

Security	Date	Type	Shares	Price / Share	Trade Value	% of Position	Held Before	Held After
Common Stock Direct	8/15/2025	C · Conversion	+10K	—	—	66.3%	15.08K	25.08K
Common Stock Direct	8/15/2025	C · Conversion	+14.08K	—	—	128.0%	11K	25.08K
Total			+24.08K		$0.00

Derivative Transactions14

Series B Preferred Stock

Direct

C · Conversion

Converts to

Common Stock

10K shares

−10K

Strike price

Held after

0.00

Exercisable

—

8/15/2025

Nonvoting Common Stock

Direct

C · Conversion

Converts to

Common Stock

14.08K shares

−14.08K

Strike price

Held after

0.00

Exercisable

—

8/15/2025

Stock Option (Right to Buy)

Direct

M · Option Exercise

Converts to

Nonvoting Common Stock

11K shares

−11K

Strike price

Held after

0.00

Exercisable

—

8/15/2025

Stock Option (Right to Buy)

Direct

M · Option Exercise

Converts to

Common Stock

11K shares

+11K

Strike price

Held after

11K

Exercisable

—

8/15/2025

Stock Option (Right to Buy)

Direct

M · Option Exercise

Converts to

Nonvoting Common Stock

18K shares

−18K

Strike price

Held after

0.00

Exercisable

—

8/15/2025

Stock Option (Right to Buy)

Direct

M · Option Exercise

Converts to

Common Stock

18K shares

+18K

Strike price

Held after

18K

Exercisable

—

8/15/2025

Stock Option (Right to Buy)

Direct

M · Option Exercise

Converts to

Nonvoting Common Stock

18K shares

−18K

Strike price

Held after

0.00

Exercisable

—

8/15/2025

Stock Option (Right to Buy)

Direct

M · Option Exercise

Converts to

Common Stock

18K shares

+18K

Strike price

Held after

18K

Exercisable

—

8/15/2025

Stock Option (Right to Buy)

Direct

M · Option Exercise

Converts to

Nonvoting Common Stock

18K shares

−18K

Strike price

Held after

0.00

Exercisable

—

8/15/2025

Stock Option (Right to Buy)

Direct

M · Option Exercise

Converts to

Common Stock

18K shares

+18K

Strike price

Held after

18K

Exercisable

—

8/15/2025

Stock Option (Right to Buy)

Direct

M · Option Exercise

Converts to

Nonvoting Common Stock

22.50K shares

−22.50K

Strike price

Held after

0.00

Exercisable

—

8/15/2025

Stock Option (Right to Buy)

Direct

M · Option Exercise

Converts to

Common Stock

22.50K shares

+22.50K

Strike price

Held after

22.50K

Exercisable

—

8/15/2025

Stock Option (Right to Buy)

Direct

M · Option Exercise

Converts to

Nonvoting Common Stock

13.89K shares

−13.89K

Strike price

16.14

Held after

0.00

Exercisable

—

8/15/2025

Stock Option (Right to Buy)

Direct

M · Option Exercise

Converts to

Common Stock

13.89K shares

+13.89K

Strike price

16.14

Held after

13.89K

Exercisable

—

8/15/2025

Security	Converts To	Date	Type	Shares	Strike Price	Exercisable	Held After
Series B Preferred Stock Direct	Common Stock10K shares	8/15/2025	C · Conversion	−10K		—	0.00
Nonvoting Common Stock Direct	Common Stock14.08K shares	8/15/2025	C · Conversion	−14.08K		—	0.00
Stock Option (Right to Buy) Direct	Nonvoting Common Stock11K shares	8/15/2025	M · Option Exercise	−11K	12	—	0.00
Stock Option (Right to Buy) Direct	Common Stock11K shares	8/15/2025	M · Option Exercise	+11K	12	—	11K
Stock Option (Right to Buy) Direct	Nonvoting Common Stock18K shares	8/15/2025	M · Option Exercise	−18K	12	—	0.00
Stock Option (Right to Buy) Direct	Common Stock18K shares	8/15/2025	M · Option Exercise	+18K	12	—	18K
Stock Option (Right to Buy) Direct	Nonvoting Common Stock18K shares	8/15/2025	M · Option Exercise	−18K	12	—	0.00
Stock Option (Right to Buy) Direct	Common Stock18K shares	8/15/2025	M · Option Exercise	+18K	12	—	18K
Stock Option (Right to Buy) Direct	Nonvoting Common Stock18K shares	8/15/2025	M · Option Exercise	−18K	12	—	0.00
Stock Option (Right to Buy) Direct	Common Stock18K shares	8/15/2025	M · Option Exercise	+18K	12	—	18K
Stock Option (Right to Buy) Direct	Nonvoting Common Stock22.50K shares	8/15/2025	M · Option Exercise	−22.50K	14	—	0.00
Stock Option (Right to Buy) Direct	Common Stock22.50K shares	8/15/2025	M · Option Exercise	+22.50K	14	—	22.50K
Stock Option (Right to Buy) Direct	Nonvoting Common Stock13.89K shares	8/15/2025	M · Option Exercise	−13.89K	16.14	—	0.00
Stock Option (Right to Buy) Direct	Common Stock13.89K shares	8/15/2025	M · Option Exercise	+13.89K	16.14	—	13.89K