Gallagher Thomas P. sold MIAX
August 18, 2026 · Form 4 insider transaction
Gallagher Thomas P. sold 150,300 shares of Miami International Holdings, Inc. at $42.41 per share, a transaction worth $6.37M. The trade was recorded as shares withheld for taxes and disclosed on an SEC Form 4, filed 2 days after the transaction.
Direction
Disposed (sell-side)
Shares
150,300
Price
$42.41
Total value
$6.37M
InsiderGallagher Thomas P.
Role—
SecurityCommon Stock
Transaction codeF: Shares withheld for taxes
Transaction dateAugust 18, 2026
Filing dateAugust 20, 2026
Shares owned after1,572,975
OwnershipIndirect
10b5-1 planNo
AmendedNo
Footnotes
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.; Mr. Gallagher maintains beneficial ownership, including dispositive and voting control, over Gallagher Investments, LLC.