Gallagher Thomas P. bought MIAX
May 5, 2026 · Form 4 insider transaction
Gallagher Thomas P. bought 15,771 shares of Miami International Holdings, Inc. at $12.00 per share, a transaction worth $189.3K. 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
15,771
Price
$12.00
Total value
$189.3K
InsiderGallagher Thomas P.
Role—
SecurityCommon Stock
Transaction codeM: Option exercise
Transaction dateMay 5, 2026
Filing dateMay 7, 2026
Shares owned after1,739,046
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.