Teekell Judson Gray 4

Accession 0001628280-25-040784

CIK 0001438472other

View on SEC.gov Company Profile

Filed

Aug 18, 8:00 PM ET

Accepted

Aug 19, 4:05 PM ET

Size

49.3 KB

Accession

0001628280-25-040784

Insider Transaction Report

Form 4

Period: 2025-08-15

MIAMI INTERNATIONAL HOLDINGS, INC.MIAX

Teekell Judson Gray

Director

Transactions

Conversion
Common Stock
2025-08-15+31,242→ 62,338 total
Conversion
Series B Preferred Stock
2025-08-15−30,000→ 0 total
→ Common Stock (30,000 underlying)
Exercise/Conversion
Stock Option (Right to Buy)
2025-08-15−12,500→ 0 total
Exercise: $12.00Exp: 2029-05-31→ Nonvoting Common Stock (12,500 underlying)
Exercise/Conversion
Stock Option (Right to Buy)
2025-08-15−5,000→ 0 total
Exercise: $12.00Exp: 2029-06-30→ Nonvoting Common Stock (5,000 underlying)
Exercise/Conversion
Stock Option (Right to Buy)
2025-08-15+28,125→ 28,125 total
Exercise: $14.00Exp: 2030-06-30→ Common Stock (28,125 underlying)
Conversion
Common Stock
2025-08-15+38,131→ 86,545 total(indirect: By estate of Byrum W. Teekell)
Exercise/Conversion
Stock Option (Right to Buy)
2025-08-15+12,500→ 12,500 total
Exercise: $12.00Exp: 2029-05-31→ Common Stock (12,500 underlying)
Exercise/Conversion
Stock Option (Right to Buy)
2025-08-15−28,125→ 0 total
Exercise: $14.00Exp: 2030-06-30→ Nonvoting Common Stock (28,125 underlying)
Conversion
Common Stock
2025-08-15+30,000→ 86,545 total(indirect: By estate of Byrum W. Teekell)
Exercise/Conversion
Stock Option (Right to Buy)
2025-08-15−20,556→ 0 total
Exercise: $16.14Exp: 2031-05-31→ Nonvoting Common Stock (20,556 underlying)
Exercise/Conversion
Stock Option (Right to Buy)
2025-08-15+20,556→ 20,556 total
Exercise: $16.14Exp: 2031-05-31→ Common Stock (20,556 underlying)
Conversion
Nonvoting Common Stock
2025-08-15−31,242→ 0 total
→ Common Stock (31,242 underlying)
Conversion
Series B Preferred Stock
2025-08-15−30,000→ 0 total(indirect: By estate of Byrum W. Teekell)
→ Common Stock (30,000 underlying)
Exercise/Conversion
Stock Option (Right to Buy)
2025-08-15−22,667→ 0 total
Exercise: $12.00Exp: 2026-06-19→ Nonvoting Common Stock (22,667 underlying)
Exercise/Conversion
Stock Option (Right to Buy)
2025-08-15−13,500→ 0 total
Exercise: $12.00Exp: 2027-05-31→ Nonvoting Common Stock (13,500 underlying)
Exercise/Conversion
Stock Option (Right to Buy)
2025-08-15+13,500→ 13,500 total
Exercise: $12.00Exp: 2027-05-31→ Common Stock (13,500 underlying)
Exercise/Conversion
Stock Option (Right to Buy)
2025-08-15+12,833→ 12,833 total
Exercise: $12.00Exp: 2028-04-30→ Nonvoting Common Stock (12,833 underlying)
Conversion
Common Stock
2025-08-15+30,000→ 62,338 total
Conversion
Nonvoting Common Stock
2025-08-15−38,131→ 0 total(indirect: By estate of Byrum W. Teekell)
→ Common Stock (38,131 underlying)
Exercise/Conversion
Stock Option (Right to Buy)
2025-08-15+22,667→ 22,667 total
Exercise: $12.00Exp: 2026-06-19→ Common Stock (22,667 underlying)
Exercise/Conversion
Stock Option (Right to Buy)
2025-08-15−12,833→ 0 total
Exercise: $12.00Exp: 2028-04-30→ Nonvoting Common Stock (12,833 underlying)
Exercise/Conversion
Stock Option (Right to Buy)
2025-08-15+5,000→ 5,000 total
Exercise: $12.00Exp: 2029-06-30→ Common Stock (5,000 underlying)

Footnotes (6)

[F1]Includes 30,000 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 initial public offering and which have no expiration date.
[F2]Includes 31,242 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 and which have no expiration date.
[F3]Includes 30,000 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 initial public offering and which have no expiration date, and which are held in the estate of Byrum W. Teekell for which J. Gray Teekell is executor and disclaims beneficial ownership as to 22,500 shares of Common Stock The inclusion of such 22,500 shares in this report shall not be deemed an admission of beneficial ownership of the reported shares for purposes of Section 16 or for any other purpose.
[F4]Includes 38,131 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 and which have no expiration date, which are held in the estate of Byrum W. Teekell for which J. Gray Teekell is executor and disclaims beneficial ownership as to 28,599 shares of Common Stock. The inclusion of such 28,599 shares in this report shall not be deemed an admission of beneficial ownership of the reported shares for purposes of Section 16 or for any other purpose.
[F5]The options were granted initially as the right to buy Nonvoting Common Stock. On the closing date of the initial public offering, these converted to the right to buy Common Stock instead of Nonvoting Common Stock, for the same price and under the same conditions.
[F6]The options are fully vested.

Documents

1 file

4
wk-form4_1755633936.xmlPrimary
FORM 4

Issuer

MIAMI INTERNATIONAL HOLDINGS, INC.

CIK 0001438472

→

Entity typeother

Related Parties

filerCIK 0001959770

Filing Metadata

Form type: 4
Filed: Aug 18, 8:00 PM ET
Accepted: Aug 19, 4:05 PM ET
Size: 49.3 KB

View on SEC.gov