Schafer Douglas M. JR bought MIAX
July 2, 2026 · Form 4 insider transaction
Schafer Douglas M. JR bought 42,000 shares of Miami International Holdings, Inc. at $12.00 per share, a transaction worth $504.0K. The trade was recorded as option exercise under a pre-scheduled Rule 10b5-1 plan and disclosed on an SEC Form 4, filed 5 days after the transaction.
Direction
Acquired (buy-side)
Shares
42,000
Price
$12.00
Total value
$504.0K
InsiderSchafer Douglas M. JR
Role—
SecurityCommon Stock
Transaction codeM: Option exercise
Transaction dateJuly 2, 2026
Filing dateJuly 7, 2026
Shares owned after435,414
OwnershipDirect
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 16, 2025.