InsiderTrades

Form 4 for MIAX MIAMI INTERNATIONAL HOLDINGS, INC.

Accepted 2025-08-28 00:00:00 ET · period of report 2025-08-26 · accession 0002080477-25-000009 · SEC index · Original document

Summary rows

Aggregated the way they appear in lists: one row per insider, transaction code and security table.

X Filed Traded Ticker Insider Title Type Price Qty Owned ΔOwn Value
I 2025-08-28 2025-08-26 MIAX Gallagher Thomas P. COB, CEO, Dir F - Tax $33.90 -192.2K 1.85M -9% -$6.52M

Purchase Sale Sale after option exercise All abbreviations

Every reported transaction

#TableSecurityDateCodeA/DSharesPriceOwned afterOwnExercise / expiryUnderlyingFootnotes
1 Common Common Stock 2025-08-26 F D 192,220 $33.90 1,848,274 I By Gallagher Investments, LLC — — (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. (F2) Mr. Gallagher maintains beneficial ownership, including dispositive and voting control, over Gallagher Investments, LLC.