Gallagher Thomas P. 4

4 · MIAMI INTERNATIONAL HOLDINGS, INC. · Filed Feb 12, 2026

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MIAX CEO Thomas P. Gallagher Surrenders 50,100 Shares for Taxes

What Happened Thomas P. Gallagher, Chairman & CEO (and a director) of Miami International Holdings, surrendered 50,100 shares on Feb 10, 2026 at $41.33 per share, a total value of approximately $2,070,633. The filing shows these shares were surrendered to satisfy tax withholding in connection with the net settlement of restricted stock awards and, per the filing footnote, do not represent an open-market sale by the reporting person.

Key Details

  • Transaction date: 2026-02-10; Form 4 filed 2026-02-12 (timely filing).
  • Price: $41.33 per share; total amount of shares surrendered ≈ $2,070,633.
  • Transaction code: F — tax withholding; footnote F1: shares surrendered to the company to satisfy tax withholding on net-settled restricted stock awards; not a sale by the insider.
  • Shares owned after the transaction: not specified in the provided filing.
  • No 10b5-1 plan or other trading plan referenced in this filing.

Context This was a routine tax-withholding/ net-settlement event related to equity compensation (restricted stock awards), not an open-market disposition. Such surrender-for-tax transactions are common after vesting and generally do not indicate a change in the insider’s view of the company.

Insider Transaction Report

Form 4
Period: 2026-02-10
Gallagher Thomas P.
DirectorChairman & CEO
Transactions
  • Tax Payment

    Common Stock

    [F1]
    2026-02-10$41.33/sh50,100$2,070,633535,863 total
Footnotes (1)
  • [F1]Represents shares that have been surrendered to the Company to satisfy tax withholding and remittance obligations in connection with the net settlement of restricted stock awards and does not represent a sale by the reporting person.
Signature
/s/ Barbara J. Comly, Attorney-in-fact|2026-02-12

Documents

1 file
  • 4
    wk-form4_1770932000.xmlPrimary

    FORM 4