| Name | Relationship | Address | Signature | Signature date | CIK |
|---|---|---|---|---|---|
| Kinch Jeremy | CHIEF OPERATING OFFICER | C/O PRIMORIS SERVICES CORPORATION, 2300 N. FIELD STREET, SUITE 1900, DALLAS | /s/ Kenneth M. Dodgen, Attorney-in-Fact | 16 Sep 2025 | 0001703828 |
| Type | Sym | Class | Transaction | Value $ | Shares | Change % | * Price $ | Shares After | Date | Ownership | Footnotes |
|---|---|---|---|---|---|---|---|---|---|---|---|
| transaction | PRIM | Common Stock | Sale | -$373K | -3.01K | -23.88% | $124.00 | 9.58K | 15 Sep 2025 | Direct |