Insider trade

Officer sold ~$1.33M of MIAX shares in the open market

Traded Oct 2, 2026 · Filed Oct 7, 2026

~$1.33M
Approx. value · 40K sh @ $33.34: 387K
Holds after · shares reported: −6.7%
Since filing · from the first close after the filing, $33.01 → $30.79 on Oct 6, S&P 500 +1.2%

Why it stands out

Miami International's and CIO sold $1.33M of Miami International shares. The filing says it was made under a pre-arranged trading plan.

Written from the filing's own figures. OQRO describes what was reported and never tells you what to buy or sell

View the official recordSEC Form 4 — Statement of Changes in Beneficial Ownership

All the details

Officer$1M+Pre-arranged plan referenced

Classification

open market sale

Code S — open-market or private sale

Absolute commitment

~$1,333,600

Shares × reported transaction price

Timing vs results

58 days after results of Aug 5, 2026

Results dates are the company's own 8-K (Item 2.02). Many companies only let insiders trade in a window after results

Planned / mechanical clue

Footnote references a pre-arranged trading plan (Rule 10b5-1)

Only flagged when a footnote says so; never inferred

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 $32.91 to $33.97. 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.