Brown Shelly (CIK 2080506) reported 21 SEC Form 4 insider transactions across 1 companies over the past 18 months (most recent 2026-07-07). Recent activity: Sell MIAX (16,000 shares), Buy MIAX (16,000 shares), Buy MIAX (37,276 shares), Sell MIAX (4,714 shares), Sell MIAX (3,619 shares). Source: SEC Form 4.
| Date | Company | Role | Type | Shares | Value |
|---|---|---|---|---|---|
| 2026-07-07 | MIAMI INTERNATIONAL HOLDINGS, INC. (MIAX) | EVP, Chief Strategy Officer | Sell | 16,000 | $674,080 |
| 2026-07-07 | MIAMI INTERNATIONAL HOLDINGS, INC. (MIAX) | EVP, Chief Strategy Officer | Buy | 16,000 | $192,000 |
| 2026-06-18 | MIAMI INTERNATIONAL HOLDINGS, INC. (MIAX) | EVP, Chief Strategy Officer | Buy | 37,276 | $0 |
| 2026-06-17 | MIAMI INTERNATIONAL HOLDINGS, INC. (MIAX) | EVP, Chief Strategy Officer | Sell | 4,714 | $208,500 |
| 2026-06-12 | MIAMI INTERNATIONAL HOLDINGS, INC. (MIAX) | EVP, Chief Strategy Officer | Sell | 3,619 | $147,619 |
| 2026-04-09 | MIAMI INTERNATIONAL HOLDINGS, INC. (MIAX) | EVP, Chief Strategy Officer | Buy | 16,434 | $197,208 |
| 2026-04-09 | MIAMI INTERNATIONAL HOLDINGS, INC. (MIAX) | EVP, Chief Strategy Officer | Sell | 2,357 | $97,415 |
| 2026-04-09 | MIAMI INTERNATIONAL HOLDINGS, INC. (MIAX) | EVP, Chief Strategy Officer | Buy | 900 | $10,800 |
| 2026-04-09 | MIAMI INTERNATIONAL HOLDINGS, INC. (MIAX) | EVP, Chief Strategy Officer | Sell | 16,434 | $691,543 |
| 2026-04-09 | MIAMI INTERNATIONAL HOLDINGS, INC. (MIAX) | EVP, Chief Strategy Officer | Sell | 900 | $37,800 |
| 2026-04-08 | MIAMI INTERNATIONAL HOLDINGS, INC. (MIAX) | EVP, Chief Strategy Officer | Sell | 2,357 | $97,415 |
| 2026-04-08 | MIAMI INTERNATIONAL HOLDINGS, INC. (MIAX) | EVP, Chief Strategy Officer | Sell | 900 | $37,800 |
| 2026-03-24 | MIAMI INTERNATIONAL HOLDINGS, INC. (MIAX) | EVP, Chief Strategy Officer | Sell | 25,932 | $1.0M |
| 2026-02-20 | MIAMI INTERNATIONAL HOLDINGS, INC. (MIAX) | EVP, Chief Strategy Officer | Sell | 19,902 | $813,793 |
| 2025-12-17 | MIAMI INTERNATIONAL HOLDINGS, INC. (MIAX) | EVP, Chief Strategy Officer | Buy | 16,666 | $199,992 |
| 2025-12-17 | MIAMI INTERNATIONAL HOLDINGS, INC. (MIAX) | EVP, Chief Strategy Officer | Buy | 8,333 | $99,996 |
| 2025-12-17 | MIAMI INTERNATIONAL HOLDINGS, INC. (MIAX) | EVP, Chief Strategy Officer | Buy | 8,333 | $99,996 |
| 2025-09-11 | MIAMI INTERNATIONAL HOLDINGS, INC. (MIAX) | EVP, Strat. Planning & BD | Sell | 16,283 | $599,377 |
| 2025-08-28 | MIAMI INTERNATIONAL HOLDINGS, INC. (MIAX) | EVP, Strat. Planning & BD | Sell | 11,047 | $374,493 |
| 2025-08-19 | MIAMI INTERNATIONAL HOLDINGS, INC. (MIAX) | EVP, Strat. Planning & BD | Buy | 500 | $0 |
| 2025-08-19 | MIAMI INTERNATIONAL HOLDINGS, INC. (MIAX) | EVP, Strat. Planning & BD | Buy | 200,475 | $0 |
Source: SEC Form 4 filings · as of 2026-07-07