X0306 4 2020-05-01 0 0001361538 Primoris Services Corp PRIM 0001620715 King David Lee C/O PRIMORIS SERVICES CORPORATION 2300 N. FIELD STREET, SUITE 1900 DALLAS TX 75201 1 0 0 0 Common Stock 2020-05-01 4 A 0 1493 A 9828 D Restricted Stock Units Common Stock 190 64707 D 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. Represents dividend equivalent units in the form of restricted stock units with respect to vested restricted stock units. Vested restricted stock units will be settled in stock or cash on the earlier of (i) six months following the reporting person's termination of employment; (ii) the date of the reporting person's death or the date the reporting person becomes disabled; or(iii) the date of a change in control of the Company. The non-employee director compensation program adopted by the Board in May 2011 and updated February 2020, provides for the issuance of restricted stock with a value of $22,444. The price per share was based on the average closing price during March 2020, resulting in a grant of 1,493 shares of stock. The shares of stock cannot be sold for a period of twelve months from the date of grant. /s/ Kenneth M. Dodgen, by power of attorney 2020-05-06