| Name | Relationship | Address | Signature | Signature date | CIK |
|---|---|---|---|---|---|
| Durham Mark | Chief Accounting Officer | 8665 NEW TRAILS DRIVE, SUITE 100, THE WOODLANDS | /s/ Mark Durham, by Gregory J. Dziak, his attorney-in-fact | 12 Nov 2025 | 0002073180 |
| Type | Sym | Class | Transaction | Value $ | Shares | Change % | * Price $ | Shares After | Date | Ownership | Footnotes |
|---|---|---|---|---|---|---|---|---|---|---|---|
| transaction | GTLS | Common stock, par value $0.01 per share | Tax liability | $23,744 | -117 | -5.9% | $202.94 | 1,853 | 10 Nov 2025 | Direct | F1 |
| Id | Content |
|---|---|
| F1 | The reporting person surrendered 117 shares to satisfy tax withholding liabilities in an exempt transaction under Rule 16b-3. |