Smollen John 4

What Happened
John Smollen, EVP of New Product Development at Miami International Holdings, surrendered 362 shares on 2026-03-30 at $37.50 per share (total value $13,575) to satisfy tax withholding obligations related to the net settlement of restricted stock awards. Per the filing footnote, this surrender was to cover tax withholding and was not a sale by the reporting person.

Key Details

• Transaction date: 2026-03-30; Price: $37.50; Shares involved: 362; Implied value: $13,575.
• Filing date: 2026-04-01 (filed within the typical two-business-day window).
• Shares owned after transaction: Not specified in this filing; footnote F2 notes a correction to a prior clerical error about beneficial ownership.
• Footnote F1 clarifies the shares were surrendered to the company to satisfy tax withholding in connection with net settlement of restricted stock and do not represent a market sale.
• No 10b5-1 plan or other trading plan was indicated in the filing.

Context
This was a tax-withholding/net-settlement event related to restricted stock (routine administrative transaction), not an open-market sale or purchase. Such surrenders are common when companies net-settle awards and generally do not indicate insider sentiment about the company’s stock.