No open-market buys or sells in this period. The transactions below are grants, option exercises and gifts, which carry no market price.
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
-
GTLS Other·F
Chief Accounting Officer
$71.4K
345 sh · $206.94
Own -10%
-
GTLS Grant·A
Chief Accounting Officer
$0
689 sh
Own +24%
-
GTLS Other·F
Chief Accounting Officer
$13.6K
66 sh · $206.23
Own -2%
-
GTLS Grant·A
Chief Accounting Officer
$0
1.1K sh
Own +57%
-
GTLS Other·F
Chief Accounting Officer
$23.7K
117 sh · $202.94
Own -6%
-
GTLS Grant·A
Chief Accounting Officer
$0
640 sh
Own +48%
| Date▾ | Ticker | Type | Shares | Value |
|---|---|---|---|---|
| Apr 1, 2026 | GTLS | Other F | 345 | $71.4K |
| Apr 1, 2026 | GTLS | Grant A | 689 | $0 |
| Jan 2, 2026 | GTLS | Other F | 66 | $13.6K |
| Jan 2, 2026 | GTLS | Grant A | 1.1K | $0 |
| Nov 10, 2025 | GTLS | Other F | 117 | $23.7K |
| Jul 11, 2025 | GTLS | Grant A | 640 | $0 |
Buy Sell Non-market (grant · exercise · gift)
About Durham Mark
This profile aggregates every SEC Form 4 insider transaction reported by Durham Mark 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.