Schafer Douglas M. JR sold MIAX

October 22, 2026 · Form 4 insider transaction

Schafer Douglas M. JR sold 8,000 shares of Miami International Holdings, Inc. at $35.06 per share, a transaction worth $280.5K. The trade was recorded as open-market sale under a pre-scheduled Rule 10b5-1 plan and disclosed on an SEC Form 4, filed 4 days after the transaction.

Direction
Disposed (sell-side)
Shares
8,000
Price
$35.06
Total value
$280.5K
Role—
SecurityCommon Stock
Transaction codeS: Open-market sale
Transaction dateOctober 22, 2026
Filing dateOctober 26, 2026
Shares owned after387,414
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.; This transaction was executed in multiple trades throughout the day at prices ranging from $35.00 to $35.14. The price reported above reflects the weighted average sales price. The Reporting Person hereby undertakes to provide upon request to the Securities and Exchange Commission staff, the Issuer or a security holder of the Issuer, full information regarding the number of shares and prices at which the transaction was effected.

View the original Form 4 on SEC EDGAR