Smollen John 4

Accession 0001628280-25-040795

CIK 0001438472other

View on SEC.gov Company Profile

Filed

Aug 18, 8:00 PM ET

Accepted

Aug 19, 4:07 PM ET

Size

53.6 KB

Accession

0001628280-25-040795

Insider Transaction Report

Form 4

Period: 2025-08-15

MIAMI INTERNATIONAL HOLDINGS, INC.MIAX

Smollen John

EVP Traded Products & Relation

Transactions

Conversion
Common Stock
2025-08-15+73,173→ 68,173 total
Conversion
Common Stock
2025-08-15+91,666→ 91,666 total(indirect: By LLC)
Exercise/Conversion
Incentive Stock Option (Right to Buy)
2025-08-15−24,999→ 0 total
Exercise: $12.00Exp: 2028-05-17→ Nonvoting Common Stock (24,999 underlying)
Exercise/Conversion
Incentive Stock Option (Right to Buy)
2025-08-15+6,570→ 6,570 total
Exercise: $15.22Exp: 2030-11-30→ Common Stock (6,570 underlying)
Exercise/Conversion
Incentive Stock Option (Right to Buy)
2025-08-15−7,757→ 0 total
Exercise: $25.78Exp: 2032-03-09→ Nonvoting Common Stock (7,757 underlying)
Exercise/Conversion
Incentive Stock Option (Right to Buy)
2025-08-15+7,757→ 7,757 total
Exercise: $25.78Exp: 2032-03-09→ Common Stock (7,757 underlying)
Exercise/Conversion
Nonqualified Stock Option (Right to Buy)
2025-08-15+104,167→ 104,167 total
Exercise: $12.00Exp: 2029-07-31→ Common Stock (104,167 underlying)
Conversion
Nonvoting Common Stock
2025-08-15−65,947→ 0 total
→ Common Stock (65,947 underlying)
Exercise/Conversion
Incentive Stock Option (Right to Buy)
2025-08-15−24,999→ 0 total
Exercise: $12.00Exp: 2025-09-17→ Series B Preferred Stock (24,999 underlying)
Exercise/Conversion
Incentive Stock Option (Right to Buy)
2025-08-15+24,999→ 24,999 total
Exercise: $12.00Exp: 2025-09-17→ Common Stock (24,999 underlying)
Exercise/Conversion
Incentive Stock Option (Right to Buy)
2025-08-15−6,570→ 0 total
Exercise: $15.22Exp: 2030-11-30→ Nonvoting Common Stock (6,570 underlying)
Exercise/Conversion
Nonqualified Stock Option (Right to Buy)
2025-08-15−125,001→ 0 total
Exercise: $12.00Exp: 2025-09-17→ Series B Preferred Stock (125,001 underlying)
Exercise/Conversion
Nonqualified Stock Option (Right to Buy)
2025-08-15+125,001→ 125,001 total
Exercise: $12.00Exp: 2025-09-17→ Common Stock (125,001 underlying)
Exercise/Conversion
Nonqualified Stock Option (Right to Buy)
2025-08-15−75,001→ 0 total
Exercise: $12.00Exp: 2028-05-17→ Nonvoting Common Stock (75,001 underlying)
Exercise/Conversion
Nonqualified Stock Option (Right to Buy)
2025-08-15−104,167→ 0 total
Exercise: $12.00Exp: 2029-07-31→ Nonvoting Common Stock (104,167 underlying)
Conversion
Series B Preferred Stock
2025-08-15−91,666→ 0 total(indirect: By LLC)
→ Common Stock (91,666 underlying)
Exercise/Conversion
Incentive Stock Option (Right to Buy)
2025-08-15+24,999→ 24,999 total
Exercise: $12.00Exp: 2028-05-17→ Common Stock (24,999 underlying)
Exercise/Conversion
Incentive Stock Option (Right to Buy)
2025-08-15−8,333→ 0 total
Exercise: $12.00Exp: 2029-07-31→ Nonvoting Common Stock (8,333 underlying)
Exercise/Conversion
Incentive Stock Option (Right to Buy)
2025-08-15+8,333→ 8,333 total
Exercise: $12.00Exp: 2029-07-31→ Common Stock (8,333 underlying)
Exercise/Conversion
Nonqualified Stock Option (Right to Buy)
2025-08-15+75,001→ 75,001 total
Exercise: $12.00Exp: 2028-05-17→ Common Stock (75,001 underlying)
Exercise/Conversion
Nonqualified Stock Option (Right to Buy)
2025-08-15−80,930→ 0 total
Exercise: $15.22Exp: 2030-11-30→ Nonvoting Common Stock (80,930 underlying)
Exercise/Conversion
Nonqualified Stock Option (Right to Buy)
2025-08-15+80,930→ 80,930 total
Exercise: $15.22Exp: 2030-11-30→ Common Stock (80,930 underlying)
Exercise/Conversion
Nonqualified Stock Option (Right to Buy)
2025-08-15−29,743→ 0 total
Exercise: $25.78Exp: 2032-03-09→ Nonvoting Common Stock (29,743 underlying)
Exercise/Conversion
Nonqualified Stock Option (Right to Buy)
2025-08-15+29,743→ 29,743 total
Exercise: $25.78Exp: 2032-03-09→ Common Stock (29,743 underlying)

Footnotes (4)

[F1]Includes 65,947 shares of Nonvoting Common Stock that have been converted into shares of Common Stock on a one-for-one basis upon the closing of the Company's initial public offering ("IPO") and which have no expiration date.
[F2]Represents 91,666 shares of Series B Preferred Stock that have been converted into shares of Common Stock on a one-for-one basis upon the closing of the Company's IPO and which have no expiration date.
[F3]The options were granted initially as the right to buy Nonvoting Common Stock or Series B Preferred Stock, as applicable. On the closing date of the IPO, these converted to the right to buy Common Stock instead of Nonvoting Common Stock or Series B Preferred Stock, as applicable, for the same price and under the same conditions.
[F4]The options are fully vested.

Documents

1 file

4
wk-form4_1755634051.xmlPrimary
FORM 4

Issuer

MIAMI INTERNATIONAL HOLDINGS, INC.

CIK 0001438472

→

Entity typeother

Related Parties

filerCIK 0002080703

Filing Metadata

Form type: 4
Filed: Aug 18, 8:00 PM ET
Accepted: Aug 19, 4:07 PM ET
Size: 53.6 KB

View on SEC.gov