| Name | Relationship | Address | Signature | Signature date | CIK |
|---|---|---|---|---|---|
| Keffer David Christian | Director | 2500 TREX WAY, C/O TREX COMPANY, INC., WINCHESTER | /s/ Amy M. Fernandez by power of attorney | 05 Jan 2026 | 0002034139 |
| Type | Sym | Class | Transaction | Value $ | Shares | Change % | * Price $ | Shares After | Date | Ownership | Footnotes |
|---|---|---|---|---|---|---|---|---|---|---|---|
| transaction | TREX | Common Stock | Award | $6,378 | +178 | +5.8% | $35.83 | 3,249 | 02 Jan 2026 | Direct | F1 |
| Id | Content |
|---|---|
| F1 | This restricted stock unit award will vest on the first anniversary of the grant. |