Net shares · 365d
-352.0K
12.0K buy · 364.0K sell
Net value · 365d
-$15.7M
$276.0K in · $16.0M out
Sentiment · 365d
Net selling
2% buying · 98% selling
Open-market trades · 365d
7
12.0K buy · 364.0K sell
Trading track record · all companies
Not enough open-market trades to chart a track record yet.
Running net of open-market buys − sells across every company. Tap the line or a marker for details. ▲ buy · ▼ sell.
Transactions · 365d
-
MIAX Grant·A
Chairman & CEO
$0
239.7K sh · 2 lots
Own New
-
MIAX Grant·A
Chairman & CEO
$0
233.0K sh
Own +46%
-
MIAX Exercise·M
Chairman & CEO · 10b5-1
$0
70.0K sh
Own +100%
-
MIAX Sell·S
Chairman & CEO · 10b5-1
$3.0M
70.0K sh · $42.36
Own -4%
-
MIAX Exercise·M
Chairman & CEO · 10b5-1
$840.0K
70.0K sh · $12.00
Own +4%
-
MIAX Exercise·M
Chairman & CEO
$0
25.0K sh
Own New
-
MIAX Exercise·M
Chairman & CEO
$300.0K
25.0K sh · $12.00
Own +5%
-
MIAX Exercise·M
Chairman & CEO · 10b5-1
$0
15.8K sh
Own +8%
-
MIAX Sell·S
Chairman & CEO · 10b5-1
$755.7K
15.8K sh · $47.92
Own -1%
-
MIAX Exercise·M
Chairman & CEO · 10b5-1
$189.3K
15.8K sh · $12.00
Own +1%
-
MIAX Exercise·M
Chairman & CEO · 10b5-1
$0
54.2K sh
Own +32%
-
MIAX Sell·S
Chairman & CEO · 10b5-1
$2.6M
54.2K sh · $47.26
Own -3%
-
MIAX Exercise·M
Chairman & CEO · 10b5-1
$650.7K
54.2K sh · $12.00
Own +3%
-
MIAX Exercise·M
Chairman & CEO · 10b5-1
$0
70.0K sh
Own +33%
-
MIAX Sell·S
Chairman & CEO · 10b5-1
$9.7M
224.0K sh · $43.43 avg · 3 lots
Own -32%
-
MIAX Exercise·M
Chairman & CEO · 10b5-1
$840.0K
70.0K sh · $12.00
Own +4%
-
MIAX Other·F
Chairman & CEO
$782.8K
20.9K sh · $37.50
Own -1%
-
MIAX Other·F
Chairman & CEO
$2.1M
50.1K sh · $41.33
Own -9%
-
MIAX Other·G
Chairman & CEO
—
2.0K sh
Own -0%
-
MIAX Other·F
Chairman & CEO
$6.5M
192.2K sh · $33.90
Own -9%
-
MIAX Exercise·M
Chairman & CEO
$0
3.2M sh · 18 lots
Own New
-
MIAX Exercise·C
Chairman & CEO
$0
709.9K sh · 3 lots
Own New
-
MIAX Exercise·C
Chairman & CEO
—
709.9K sh · 3 lots
Own New
-
MIAX Buy·P
Chairman & CEO
$276.0K
12.0K sh · $23.00
Own New
| Date▾ | Ticker | Type | Shares | Value |
|---|---|---|---|---|
| Jun 16, 2026 | MIAX | Grant A | 239.7K2 lots | $0 |
| Jun 16, 2026 | MIAX | Grant A | 233.0K | $0 |
| Jun 2, 2026 | MIAX | Exercise M | 70.0K | $0 |
| Jun 2, 2026 | MIAX | Sell S | 70.0K | $3.0M |
| Jun 2, 2026 | MIAX | Exercise M | 70.0K | $840.0K |
| May 11, 2026 | MIAX | Exercise M | 25.0K | $0 |
| May 11, 2026 | MIAX | Exercise M | 25.0K | $300.0K |
| May 5, 2026 | MIAX | Exercise M | 15.8K | $0 |
| May 5, 2026 | MIAX | Sell S | 15.8K | $755.7K |
| May 5, 2026 | MIAX | Exercise M | 15.8K | $189.3K |
| May 4, 2026 | MIAX | Exercise M | 54.2K | $0 |
| May 4, 2026 | MIAX | Sell S | 54.2K | $2.6M |
| May 4, 2026 | MIAX | Exercise M | 54.2K | $650.7K |
| Apr 15, 2026 | MIAX | Exercise M | 70.0K | $0 |
| Apr 15, 2026 | MIAX | Sell S | 224.0K3 lots | $9.7M |
| Apr 15, 2026 | MIAX | Exercise M | 70.0K | $840.0K |
| Mar 30, 2026 | MIAX | Other F | 20.9K | $782.8K |
| Feb 10, 2026 | MIAX | Other F | 50.1K | $2.1M |
| Dec 23, 2025 | MIAX | Other G | 2.0K | — |
| Aug 26, 2025 | MIAX | Other F | 192.2K | $6.5M |
| Aug 15, 2025 | MIAX | Exercise M | 3.2M18 lots | $0 |
| Aug 15, 2025 | MIAX | Exercise C | 709.9K3 lots | $0 |
| Aug 15, 2025 | MIAX | Exercise C | 709.9K3 lots | — |
| Aug 13, 2025 | MIAX | Buy P | 12.0K | $276.0K |
Buy Sell Non-market (grant · exercise · gift)
About Gallagher Thomas P.
This profile aggregates every SEC Form 4 insider transaction reported by Gallagher Thomas P. across all companies they trade. Open-market purchases (code P) and sales (code S) are the highest-signal, discretionary trades; grants (A), option exercises (M) and gifts (G) reflect compensation rather than conviction and carry no market price. Figures cover the selected period and update as new filings are ingested.