| Name | Relationship | Address | Signature | Signature date | CIK |
|---|---|---|---|---|---|
| Ching Michael E. | Director | C/O PRIMORIS SERVICES CORPORATION, 2300 N FIELD ST., SUITE 1900, DALLAS | /s/ Kenneth M. Dodgen, Attorney-in-Fact | 15 Sep 2025 | 0001924790 |
| Type | Sym | Class | Transaction | Value $ | Shares | Change % | * Price $ | Shares After | Date | Ownership | Footnotes |
|---|---|---|---|---|---|---|---|---|---|---|---|
| transaction | PRIM | Common Stock | Sale | $351,877 | -2,935 | -24% | $119.89 | 9,534 | 11 Sep 2025 | Direct |