| 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 | 13 Aug 2025 | 0001441444 |
| Type | Sym | Class | Transaction | Value $ | Shares | Change % | * Price $ | Shares After | Date | Ownership | Footnotes |
|---|---|---|---|---|---|---|---|---|---|---|---|
| transaction | PRIM | Common Stock | Sale | $1,294,342 | -11,607 | -8% | $111.51 | 133,607 | 11 Aug 2025 | Family Trust | F1, F2 |
| Id | Content |
|---|---|
| F1 | These shares were sold in multiple transactions at prices ranging from $111.30 to $111.61 per share, inclusive. The holder undertakes to provide the issuer, any security holder of the issuer, or the staff of the Securities and Exchange Commission, upon written request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote. |
| F2 | 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. Mr. Perisich is Chief Legal and Administrative Officer of Primoris. |