Teekell Judson Gray 4

What Happened
Teekell Judson Gray, a director of Miami International Holdings, Inc. (MIAX), sold 300 shares on March 25, 2026. The reported weighted-average price was $40.00 per share for a total proceeds of approximately $12,000. This was a sale (not a purchase) and was effected under a previously established Rule 10b5-1 trading plan.

Key Details

• Transaction date: 2026-03-25 (reported on Form 4 filed 2026-03-26) — appears to be filed timely.
• Transaction type/code: Sale (S) — reported as open market/private sale; executed in multiple trades during the day.
• Price: weighted average $40.00; reported trade range $40.00–$40.00.
• Shares sold: 300; approximate value: $12,000.
• Footnote: The sale was effected pursuant to a Rule 10b5-1 plan adopted by the reporting person on December 17, 2025. The filer states they can provide detailed per-trade quantities and prices upon request.
• Shares owned after transaction: Not specified in the provided filing excerpt.

Context

• Sales executed under 10b5-1 plans are pre-arranged and often routine; they do not by themselves indicate a change in the insider’s view of the company.
• The filing does not indicate option exercises, awards, gifts, or tax-withholding related to this transaction.