Gallagher Thomas P. bought MIAX
September 3, 2026 · Form 4 insider transaction
Gallagher Thomas P. bought 47,000 shares of Miami International Holdings, Inc. at $12.00 per share, a transaction worth $564.0K. The trade was recorded as option exercise under a pre-scheduled Rule 10b5-1 plan and disclosed on an SEC Form 4, filed 1 day after the transaction.
Direction
Acquired (buy-side)
Shares
47,000
Price
$12.00
Total value
$564.0K
InsiderGallagher Thomas P.
Role—
SecurityCommon Stock
Transaction codeM: Option exercise
Transaction dateSeptember 3, 2026
Filing dateSeptember 4, 2026
Shares owned after1,470,275
OwnershipIndirect
10b5-1 planYes
AmendedNo
Footnotes
This transaction was effected pursuant to a previously established Rule 10b5-1 Plan adopted by the Reporting Person on December 29, 2025.; Mr. Gallagher maintains beneficial ownership, including dispositive and voting control, over Gallagher Investments, LLC.