Primoris Services Corp — Director's Dealing 2026

Mar 3, 2026

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: Primoris Services Corp (PRIM)
CIK: 0001361538
Period of Report: 2026-03-01

Reporting Person: Perisich John M. (N/A)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2026-03-01	Common Stock	M	12290	—	Acquired	12290	Direct
2026-03-01	Common Stock	A	48197	—	Acquired	60487	Direct
2026-03-01	Common Stock	F	30780	$150.72	Disposed	29707	Direct

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2026-03-01	Restricted Stock Units	$	M	12290	Disposed		Common Stock (12290)	Direct
2026-03-01	Restricted Stock Units	$	A	2723	Acquired		Common Stock (2723)	Direct

Holdings (Non-Derivative)

Security	Shares	Ownership
Common Stock	133607	Indirect

Footnotes

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.