| Name | Relationship | Address | Signature | Signature date | CIK |
|---|---|---|---|---|---|
| Perisich John M. | CHIEF LEGAL AND ADMIN OFFICER | C/O PRIMORIS SERVICES CORPORATION, 2300 NORTH FIELD STREET, SUITE 1900, DALLAS | /s/ Kenneth M. Dodgen, Attorney-in-Fact | 03 Mar 2026 | 0001441444 |
| Type | Sym | Class | Transaction | Value $ | Shares | Change % | * Price $ | Shares After | Date | Ownership | Footnotes |
|---|---|---|---|---|---|---|---|---|---|---|---|
| transaction | PRIM | Common Stock | Options Exercise | +12,290 | 12,290 | 01 Mar 2026 | Direct | F1 | |||
| transaction | PRIM | Common Stock | Award | +48,197 | +392% | 60,487 | 01 Mar 2026 | Direct | F2 | ||
| transaction | PRIM | Common Stock | Tax liability | $4,639,162 | -30,780 | -51% | $150.72 | 29,707 | 01 Mar 2026 | Direct | F3 |
| holding | PRIM | Common Stock | 133,607 | 01 Mar 2026 | Family Trust | F4 |
| Type | Sym | Class | Transaction | Value $ | Shares | Change % | * Price $ | Shares After | Date | Underlying Class | Amount | Exercise Price | Ownership | Footnotes |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| transaction | PRIM | Restricted Stock Units | Options Exercise | $0 | -12,290 | -57% | $0.000000 | 9,235 | 01 Mar 2026 | Common Stock | 12,290 | Direct | F1 | |
| transaction | PRIM | Restricted Stock Units | Award | $0 | +2,723 | +29% | $0.000000 | 11,958 | 01 Mar 2026 | Common Stock | 2,723 | Direct | F5, F6 |
| Id | Content |
|---|---|
| F1 | Each restricted stock unit represents a contingent right to receive one share of PRIM common stock or the cash value thereof on the date of settlement, in the Company's discretion. On March 1, 2026, the restricted stock units vested and were settled for an equal number of shares of PRIM common stock. |
| F2 | These shares represent the acquisition of common stock resulting from the vesting of earned performance stock units issued under an equity incentive plan of the Company. |
| F3 | Withholding of common stock to satisfy reporting person's tax obligation upon the settlement of vested restricted stock units and performance stock units. |
| F4 | These shares are owned directly by the Perisich Family Trust dated July 11, 2007 and indirectly by John M. Perisich, as trustee of the trust. |
| F5 | Each restricted stock unit represents a contingent right to receive one share of PRIM common stock or the cash value thereof on the date of settlement, in theCompany's discretion. |
| F6 | The restricted stock units vest 25% on March 1, 2027, 25% on March 1, 2028, and 50% on March 1, 2029. |