Insider Profile · SEC Form 4 Activity · Trailing 90 Days
Gallagher Thomas P.
Over the trailing 90 days, Gallagher Thomas P. (Director at MIAMI INTERNATIONAL HOLDINGS, INC.) traded $15.9M of stock (net selling $8.6M) in MIAX, per 23 SEC Form 4 transactions.
- Role
- Director
- Companies
- MIAX
- Window
- Trailing 90 days · 23 transactions · CIK 2080477
- Net activity
- −$8.6M ($3.7M bought · $12.2M sold)
By Company (Trailing 90 Days)
| Symbol | Company | Txns | Bought | Sold | Net |
|---|---|---|---|---|---|
| MIAX | MIAMI INTERNATIONAL HOLDINGS, INC. | 23 | $3.7M | $12.2M | −$8.6M |
Transactions (23)
| Date | Symbol | Type | Shares | Value | Description |
|---|---|---|---|---|---|
| 2026-07-13 | MIAX | Sell | 70.0K | $0 | Exercise or conversion of derivative security |
| 2026-07-13 | MIAX | Sell | 70.0K | $3.0M | Open market or private sale |
| 2026-07-13 | MIAX | Buy | 70.0K | $840K | Exercise or conversion of derivative security |
| 2026-07-07 | MIAX | Sell | 28.2K | $0 | Exercise or conversion of derivative security |
| 2026-07-07 | MIAX | Sell | 28.2K | $1.2M | Open market or private sale |
| 2026-07-07 | MIAX | Buy | 28.2K | $339K | Exercise or conversion of derivative security |
| 2026-07-06 | MIAX | Buy | 41.8K | $501K | Exercise or conversion of derivative security |
| 2026-07-06 | MIAX | Sell | 41.8K | $1.8M | Open market or private sale |
| 2026-07-06 | MIAX | Sell | 41.8K | $0 | Exercise or conversion of derivative security |
| 2026-06-16 | MIAX | Buy | 2.5K | $0 | Grant, award or other acquisition |
| 2026-06-16 | MIAX | Buy | 237.2K | $0 | Grant, award or other acquisition |
| 2026-06-16 | MIAX | Buy | 233.0K | $0 | Grant, award or other acquisition |
| 2026-06-02 | MIAX | Buy | 70.0K | $840K | Exercise or conversion of derivative security |
| 2026-06-02 | MIAX | Sell | 70.0K | $3.0M | Open market or private sale |
| 2026-06-02 | MIAX | Sell | 70.0K | $0 | Exercise or conversion of derivative security |
| 2026-05-11 | MIAX | Buy | 25.0K | $300K | Exercise or conversion of derivative security |
| 2026-05-11 | MIAX | Sell | 25.0K | $0 | Exercise or conversion of derivative security |
| 2026-05-05 | MIAX | Sell | 15.8K | $756K | Open market or private sale |
| 2026-05-05 | MIAX | Buy | 15.8K | $189K | Exercise or conversion of derivative security |
| 2026-05-05 | MIAX | Sell | 15.8K | $0 | Exercise or conversion of derivative security |
| 2026-05-04 | MIAX | Sell | 54.2K | $0 | Exercise or conversion of derivative security |
| 2026-05-04 | MIAX | Sell | 54.2K | $2.6M | Open market or private sale |
| 2026-05-04 | MIAX | Buy | 54.2K | $651K | Exercise or conversion of derivative security |
Activity shown covers the trailing 90 days of SEC Form 4 filings. "Buy" and "sell" follow the SEC acquired/disposed codes and include compensation events (grants, option exercises, tax withholding) unless noted. Historical fact, not investment advice.
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