Smollen John (CIK 2080703) reported 7 SEC Form 4 insider transactions across 1 companies over the past 18 months (most recent 2026-06-18). Recent activity: Buy MIAX (7,455 shares), Buy MIAX (125,001 shares), Sell MIAX (52,054 shares), Buy MIAX (24,999 shares), Buy MIAX (73,173 shares). Source: SEC Form 4.
| Date | Company | Role | Type | Shares | Value |
|---|---|---|---|---|---|
| 2026-06-18 | MIAMI INTERNATIONAL HOLDINGS, INC. (MIAX) | EVP, New Product Development | Buy | 7,455 | $0 |
| 2025-09-15 | MIAMI INTERNATIONAL HOLDINGS, INC. (MIAX) | EVP Traded Products & Relation | Buy | 125,001 | $1.5M |
| 2025-09-15 | MIAMI INTERNATIONAL HOLDINGS, INC. (MIAX) | EVP Traded Products & Relation | Sell | 52,054 | $1.9M |
| 2025-09-15 | MIAMI INTERNATIONAL HOLDINGS, INC. (MIAX) | EVP Traded Products & Relation | Buy | 24,999 | $299,988 |
| 2025-08-19 | MIAMI INTERNATIONAL HOLDINGS, INC. (MIAX) | EVP Traded Products & Relation | Buy | 73,173 | $0 |
| 2025-08-19 | MIAMI INTERNATIONAL HOLDINGS, INC. (MIAX) | EVP Traded Products & Relation | Buy | 91,666 | $0 |
| 2025-08-15 | MIAMI INTERNATIONAL HOLDINGS, INC. (MIAX) | EVP Traded Products & Relation | Buy | 5,000 | $115,000 |
Source: SEC Form 4 filings · as of 2026-06-18