MIAX SEC Form 4 filings
Miami International Holdings, Inc. Insider Trading Activity
Over the past 52 days, Miami International Holdings, Inc. (MIAX) has had 5 total open-market insider transactions represented in the displayed records. The most recent transaction was on September 3, 2026, when Gallagher Thomas P. (Miami International Holdings, Inc. Chairman & CEO) reported a sale of 47,000 shares at $42.43 per share. This page tracks available SEC Form 4 purchase and sale records for MIAX on a 24-hour delay.
⚠️ THE SAMPLE BELOW IS DEFERRED BY 24 HOURS ⚠️
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| Ticker | Filing Date | Transaction Date | Company | Insider | Title | Transaction | Trade Count | Shares | Avg. Price | Total Value | Position Size Change | SEC Filing |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| MIAX | 2026-09-04 | 2026-09-03 | Miami International Holdings, Inc. | Gallagher Thomas P. | Chairman & CEO | Sell | 1 | 47,000 | $42.43 | $1,994,210.00 | 3.20% | View Filing |
| MIAX | 2026-08-20 | 2026-08-19 | Miami International Holdings, Inc. | Gallagher Thomas P. | Chairman & CEO | Sell | 1 | 149,700 | $41.13 | $6,157,161.00 | 9.52% | View Filing |
| MIAX | 2026-08-19 | 2026-08-17 | Miami International Holdings, Inc. | Schwarzkopf Cynthia | Director | Sell | 1 | 5,000 | $42.85 | $214,250.00 | 5.35% | View Filing |
| MIAX | 2026-08-19 | 2026-08-17 | Miami International Holdings, Inc. | Emmons Lance | EVP and CFO | Sell | 1 | 35,000 | $42.83 | $1,499,050.00 | 28.80% | View Filing |
| MIAX | 2026-07-16 | 2026-07-15 | Miami International Holdings, Inc. | Schwarzkopf Cynthia | Director | Sell | 1 | 5,000 | $42.00 | $210,000.00 | 5.35% | View Filing |
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Alerts are based on public SEC filings and are provided for informational purposes only; they do not constitute financial advice.