Miami International Holdings (MIAX)Officer filed to sell ~$4.05M

~$4.05M

planned to sell · 120K shares, around Oct 2, 2026

Planned for

Oct 2, 2026

Notice filed

Oct 2, 2026

The story around this disclosure

Every dated public record OQRO holds about the company from 60 days before to 120 days after, oldest first. It shows what was going on; none of it is a stated reason for the trade.

1. Aug 5, 2026Company filing · Form 8-K · ResultsReported its results
2. Oct 2, 2026InsiderOfficer sold ~$1.33M of MIAX shares in the open market

How to read SEC Form 144

Form 144 is a notice that a company insider plans to sell shares. It is filed when the sell order is placed, so it announces a planned sale and does not prove that the sale took place.

Full guide: What is an SEC Form 144?

What else is on file for Miami International Holdings

For Miami International Holdings, OQRO holds 2 insider filings (SEC Form 4 or Form 144) and 2 fund holdings reports (13F) dated in the last 90 days.

These are records OQRO holds, counted by their date, not a measure of how much trading took place. Routine paperwork such as option exercises and tax withholding is left out. Everything for the company is on its MIAX page.

How this filing works

• SEC Form 144
• Rule 10b5-1 trading plans

Other disclosures at Miami International Holdings

• SEC Form 4Oct 7, 2026
• SEC Form 13F-HRAug 14, 2026
• SEC Form 13F-HRAug 11, 2026
• SEC Form 13F-HRMay 15, 2026
• SEC Form 13F-HRMay 15, 2026
• House Clerk periodic transaction reportApr 7, 2026

Everything OQRO holds on this company is on its MIAX page.