MIAMI INTERNATIONAL HOLDINGS, INC.·4

Jun 12, 4:16 PM ET

Schafer Douglas M. JR 4

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

Research Summary

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Updated

MIAX EVP/CIO Douglas M. Schafer Surrenders 32,565 Shares for Taxes

What Happened
Douglas M. Schafer Jr., Executive Vice President and Chief Investment Officer of Miami International Holdings, surrendered 32,565 shares on 2026-06-11 as part of a tax-withholding/net settlement related to restricted stock. The filing shows a per-share value of $40.79, totaling $1,328,326. This was a tax-withholding/net settlement transaction—not an open-market sale by the insider.

Key Details

  • Transaction date: 2026-06-11; reported on Form 4 filed 2026-06-12 (timely filing).
  • Shares affected: 32,565 surrendered at $40.79 per share; total value reported $1,328,326.
  • Shares owned after transaction: not specified in this filing.
  • Footnote: F1 states these shares were surrendered to satisfy tax withholding for net-settled restricted stock awards and "does not represent a sale by the reporting person."
  • Transaction code: F (tax withholding/net settlement).

Context
This is a routine tax-withholding event arising from restricted stock vesting (a net settlement) and should not be interpreted as a discretionary sale of company stock by the insider. Such surrender-for-tax transactions are common when companies withhold shares to cover required taxes.

Insider Transaction Report

Form 4
Period: 2026-06-11
Transactions
  • Tax Payment

    Common Stock

    [F1]
    2026-06-11$40.79/sh32,565$1,328,326364,116 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/ Alessandra Henriques Corona, Attorney-in-fact|2026-06-12

Documents

1 file
  • 4
    wk-form4_1781295372.xmlPrimary

    FORM 4