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Gallagher Thomas P.
Chairman & CEODirectorCIK 0002080477
Total Volume
$66.5M
14 filings
Purchases
$276.0K
1 buy txns
Sales
$31.5M
11 sell txns
Net Activity
-$31.3M
net sold
Profile
- Filings
- 14
- Buy transactions
- 1
- Sell transactions
- 11
- Companies
- 1
- Active
- 2025–2026
Across 14 filings between 2025–2026, Gallagher Thomas P., Chairman & CEO, Director, has disclosed $66.5M in transactions — all concentrated in MIAMI INTERNATIONAL HOLDINGS, INC. (MIAX). Their disclosed trades are heavily weighted toward selling — $276.0K in buys and $31.5M in sells. The largest single open-market purchase on record is $276.0K in MIAMI INTERNATIONAL HOLDINGS, INC.. Data is sourced from official SEC Form 3, 4, and 5 filings.
Associated Companies
Trading History
14 loaded
| Sep 4 | MIAX MIAMI INTERNATIONAL HOLDINGS, INC. | Gallagher Thomas P. | Chairman & CEO, Director | Sell | $2.0M |
| Aug 20 | MIAX MIAMI INTERNATIONAL HOLDINGS, INC. | Gallagher Thomas P. | Chairman & CEO, Director | Sell | $6.2M |
| Aug 6 | MIAX MIAMI INTERNATIONAL HOLDINGS, INC. | Gallagher Thomas P. | Chairman & CEO, Director | Sell | $2.2M |
| Jul 14 | MIAX MIAMI INTERNATIONAL HOLDINGS, INC. | Gallagher Thomas P. | Chairman & CEO, Director | Sell | $3.0M |
| Jul 7 | MIAX MIAMI INTERNATIONAL HOLDINGS, INC. | Gallagher Thomas P. | Chairman & CEO, Director | Sell | $3.0M |
| Jun 18 | MIAX MIAMI INTERNATIONAL HOLDINGS, INC. | Gallagher Thomas P. | Chairman & CEO, Director | Grant | $9.6M |
| Jun 4 | MIAX MIAMI INTERNATIONAL HOLDINGS, INC. | Gallagher Thomas P. | Chairman & CEO, Director | Sell | $3.0M |
| May 13 | MIAX MIAMI INTERNATIONAL HOLDINGS, INC. | Gallagher Thomas P. | Chairman & CEO, Director | Exercise | $600.0K |
| May 5 | MIAX MIAMI INTERNATIONAL HOLDINGS, INC. | Gallagher Thomas P. | Chairman & CEO, Director | Sell | $2.6M |
| Apr 17 | MIAX MIAMI INTERNATIONAL HOLDINGS, INC. | Gallagher Thomas P. | Chairman & CEO, Director | Sell | $9.7M |
| Dec 29 | MIAX MIAMI INTERNATIONAL HOLDINGS, INC. | Gallagher Thomas P. | Chairman & CEO, Director | Gift | $0 |
| Aug 28 | MIAX MIAMI INTERNATIONAL HOLDINGS, INC. | Gallagher Thomas P. | Chairman & CEO, Director | Tax withheld | $6.5M |
| Aug 15 | MIAX MIAMI INTERNATIONAL HOLDINGS, INC. | Gallagher Thomas P. | Chairman & CEO, Director | Buy | $276.0K |
| Aug 13 | MIAX MIAMI INTERNATIONAL HOLDINGS, INC. | Gallagher Thomas P. | Chairman & CEO, Director | Other | $0 |
14 filings