MIAMI INTERNATIONAL HOLDINGS, INC.·4

Jun 12, 4:17 PM ET

Deitzel Edward 4

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

Research Summary

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MIAX EVP Edward Deitzel Surrenders 5,939 Shares for Taxes

What Happened Edward Deitzel, EVP / CRO / CCO of Miami International Holdings, had 5,939 shares reported as disposed on 2026-06-11 at $40.79 per share (total value ≈ $242,252). Per the filing footnote, these shares were surrendered to the company to satisfy tax withholding related to the net settlement of restricted stock awards and do not represent an open‑market sale by the reporting person.

Key Details

  • Transaction date: 2026-06-11; Filing date: 2026-06-12.
  • Transaction type/code: F — payment of exercise price or tax liability (share surrender for tax withholding).
  • Shares involved: 5,939 shares at $40.79 each; gross value ≈ $242,252.
  • Shares owned after transaction: not specified in the filing.
  • Footnote (F1): confirms shares were surrendered to satisfy tax withholding on net settlement of restricted stock awards — not a sale by the insider.
  • Filing timeliness: filed the next day; no late filing indicated in the document.

Context This was an administrative tax‑withholding action (net settlement of RSAs), a common and routine transaction that reduces the number of shares delivered to the insider. It is not a market sale and therefore should not be read as a direct signal of the insider’s view on the company’s stock. Purchases or open‑market sales are typically more informative about insider sentiment.

Insider Transaction Report

Form 4
Period: 2026-06-11
Deitzel Edward
EVP, CRO, CCO MIAX Exchanges
Transactions
  • Tax Payment

    Common Stock

    [F1]
    2026-06-11$40.79/sh5,939$242,252110,282 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 Maria Corona Henriques, Attorney-in-Fact|2026-06-12

Documents

1 file
  • 4
    wk-form4_1781295443.xmlPrimary

    FORM 4