Gallagher Thomas P. bought MIAX
August 4, 2026 · Form 4 insider transaction
Gallagher Thomas P. bought 48,334 shares of Miami International Holdings, Inc. at $12.00 per share, a transaction worth $580.0K. The trade was recorded as option exercise under a pre-scheduled Rule 10b5-1 plan and disclosed on an SEC Form 4, filed 2 days after the transaction.
Direction
Acquired (buy-side)
Shares
48,334
Price
$12.00
Total value
$580.0K
InsiderGallagher Thomas P.
Role—
SecurityCommon Stock
Transaction codeM: Option exercise
Transaction dateAugust 4, 2026
Filing dateAugust 6, 2026
Shares owned after1,771,609
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.