144 0001286202 XXXXXXXX LIVE 0001361538 Primoris Services Corp 001-34145 2300 N. FIELD STREET, SUITE 1900 DALLAS TX 75201 214-740-5600 MASHINSKI CARLA S Director Common Charles Schwab Corp.

3000 Schwab Way Westlake TX 76262

2082 281111.64 54032351 12/08/2025 NYSE Common 08/02/2023 Equity Compensation Issuer N 1107 08/02/2023 N/A Common 11/02/2023 Equity Compensation Issuer N 975 11/02/2023 N/A Y 12/08/2025 Carla Mashinski