Gallagher Thomas P.
CIK 2080477 · Chairman & CEO · last filed 2026-06-04
Gallagher Thomas P. is a Chairman & CEO who has filed 11 SEC Form 4 insider transactions across 1 company since 2025. The most recent filing, for MIAX, was dated Jun 4, 2026. Across all open-market trades the lifetime net is −$15.7M, making them a net seller over the disclosed history. Current disclosed insider exposure totals $91.7M across reported positions.
"Disclosed insider exposure" sums this person's most-recently-reported share counts across each company they're an insider in, multiplied by the current underlying price. It is not net worth — it misses retail holdings, private investments, real estate, index funds, and any company where the person isn't an SEC-reporting insider. For informational purposes only.
$91.71M
1
11
-$15.74M
Holdings By Company
| Symbol | Role | Shares | Price | Disclosed Exposure | Lifetime OM Net | Filings | Latest Filed |
|---|---|---|---|---|---|---|---|
| MIAX | Chairman & CEO | 2,304,237 | $39.80 | $91.71M | -$15.74M | 11 | 2026-06-04 |
Recent Filings
11 filings| Filed | Symbol | Action | Net Shares | Net $ | Link |
|---|---|---|---|---|---|
| 2026-06-04 | MIAX | Mixed | — | -$2.13M | EDGAR |
| 2026-05-13 | MIAX | Exer (M) | +24,999 | $300.0K | EDGAR |
| 2026-05-07 | MIAX | Mixed | — | -$566.5K | EDGAR |
| 2026-05-05 | MIAX | Mixed | — | -$1.91M | EDGAR |
| 2026-04-17 | MIAX | Mixed | −154,024 | -$8.89M | EDGAR |
| 2026-04-01 | MIAX | Tax (F) | −20,875 | -$782.8K | EDGAR |
| 2026-02-12 | MIAX | Tax (F) | −50,100 | -$2.07M | EDGAR |
| 2025-12-29 | MIAX | Gift (G) | −2,000 | $0 | EDGAR |
| 2025-08-28 | MIAX | Tax (F) | −192,220 | -$6.52M | EDGAR |
| 2025-08-19 | MIAX | Mixed | +709,858 | $0 | EDGAR |