| 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 | 02 Oct 2025 | 0002034139 |
| Type | Sym | Class | Transaction | Value $ | Shares | Change % | * Price $ | Shares After | Date | Ownership | Footnotes |
|---|---|---|---|---|---|---|---|---|---|---|---|
| transaction | TREX | Common Stock | Award | $6,389 | +123 | +4.2% | $51.94 | 3,071 | 01 Oct 2025 | Direct | F1 |
| Id | Content |
|---|---|
| F1 | This restricted stock unit award will vest on the first anniversary of the grant. |