Who
Thomas P. Gallagher
Chairman & CEO
Company insider
Files Form 4 as: Chairman & CEO, Miami International Holdings.
In numbers
- Trades disclosed
- 119
- Buys
- 1
- Sells
- 10
- Bought
- $276K
- Sold
- $64.6M
- Companies
- 1
- Companies where not an officer
- 0
- First trade
- 13 Aug 2025
- Last trade
- 3 Sep 2026
- Last filed
- 4 Sep 2026
Companies traded
Activity over time
1 Aug 2025 – 1 Oct 2026
Buys above the line, sells below, each month.
Every trade
| Traded | Company | What | Amount | |
|---|---|---|---|---|
| 3 Sep 2026filed 4 Sep 2026 | MIAX Miami International HoldingsCapital Markets & Asset Management | SEC FORM 4 Code M | $564K47,000 at $12.00 | filing |
| 3 Sep 2026filed 4 Sep 2026 | MIAX Miami International Holdingsoption or derivative · Capital Markets & Asset Management | SEC FORM 4 Code M | —13,140 at $0.00 | filing |
| 3 Sep 2026filed 4 Sep 2026 | MIAX Miami International Holdingsoption or derivative · Capital Markets & Asset Management | SEC FORM 4 Code M | —4,464 at $0.00 | filing |
| 3 Sep 2026filed 4 Sep 2026 | MIAX Miami International HoldingsCapital Markets & Asset Management | SEC FORM 4 Sold | $2.0M47,000 at $42.43 | filing |
| 3 Sep 2026filed 4 Sep 2026 | MIAX Miami International HoldingsCapital Markets & Asset Management | SEC FORM 4 Code M | $200K16,666 at $12.00 | filing |
| 3 Sep 2026filed 4 Sep 2026 | MIAX Miami International Holdingsoption or derivative · Capital Markets & Asset Management | SEC FORM 4 Code M | —47,000 at $0.00 | filing |
| 3 Sep 2026filed 4 Sep 2026 | MIAX Miami International Holdingsoption or derivative · Capital Markets & Asset Management | SEC FORM 4 Code M | —16,666 at $0.00 | filing |
| 3 Sep 2026filed 4 Sep 2026 | MIAX Miami International Holdingsoption or derivative · Capital Markets & Asset Management | SEC FORM 4 Code M | —8,333 at $0.00 | filing |
| 3 Sep 2026filed 4 Sep 2026 | MIAX Miami International Holdingsoption or derivative · Capital Markets & Asset Management | SEC FORM 4 Code M | —13,140 at $0.00 | filing |
| 3 Sep 2026filed 4 Sep 2026 | MIAX Miami International Holdingsoption or derivative · Capital Markets & Asset Management | SEC FORM 4 Code M | —4,464 at $0.00 | filing |
| 3 Sep 2026filed 4 Sep 2026 | MIAX Miami International HoldingsCapital Markets & Asset Management | SEC FORM 4 Code M | $100K8,333 at $12.00 | filing |
| 3 Sep 2026filed 4 Sep 2026 | MIAX Miami International HoldingsCapital Markets & Asset Management | SEC FORM 4 Code M | $200K13,140 at $15.22 | filing |
| 3 Sep 2026filed 4 Sep 2026 | MIAX Miami International HoldingsCapital Markets & Asset Management | SEC FORM 4 Code M | $100K4,464 at $22.40 | filing |
| 3 Sep 2026filed 4 Sep 2026 | MIAX Miami International Holdingsoption or derivative · Capital Markets & Asset Management | SEC FORM 4 Code M | —47,000 at $0.00 | filing |
| 3 Sep 2026filed 4 Sep 2026 | MIAX Miami International Holdingsoption or derivative · Capital Markets & Asset Management | SEC FORM 4 Code M | —16,666 at $0.00 | filing |
| 3 Sep 2026filed 4 Sep 2026 | MIAX Miami International Holdingsoption or derivative · Capital Markets & Asset Management | SEC FORM 4 Code M | —8,333 at $0.00 | filing |
| 3 Sep 2026filed 4 Sep 2026 | MIAX Miami International HoldingsCapital Markets & Asset Management | SEC FORM 4 Code M | $564K47,000 at $12.00 | filing |
| 3 Sep 2026filed 4 Sep 2026 | MIAX Miami International HoldingsCapital Markets & Asset Management | SEC FORM 4 Sold | $2.0M47,000 at $42.43 | filing |
| 3 Sep 2026filed 4 Sep 2026 | MIAX Miami International HoldingsCapital Markets & Asset Management | SEC FORM 4 Code M | $200K16,666 at $12.00 | filing |
| 3 Sep 2026filed 4 Sep 2026 | MIAX Miami International HoldingsCapital Markets & Asset Management | SEC FORM 4 Code M | $100K8,333 at $12.00 | filing |
News
No headline names them, or the companies they trade most, lately.