ATLANTA, GA – – (Globe Newswire – August 14, 2026) – – A shareholder class action lawsuit has been filed against Primoris Services Corporation (“Primoris”) (NYSE: PRIM). The lawsuit alleges that: (i) Primoris’ cost estimation, cost-to-complete forecasting, and project oversight processes were deficient and failed to provide reliable estimates of the costs and expected profitability of significant fixed-price renewable energy projects; (ii) as a result, Primoris systematically underestimated the costs and risks of significant fixed-price renewable energy projects that were experiencing material cost overruns, execution problems, and schedule delays; and (iii) accordingly, Defendants’ statements regarding Primoris’ estimating processes, project execution, ability to manage project risk, financial performance, and financial guidance lacked a reasonable basis and omitted material adverse facts.

 If you purchased Primoris shares between August 5, 2025 and June 22, 2026, and experienced a loss on that investment, you are encouraged to discuss your legal rights by contacting Corey D. Holzer, Esq. at cholzer@holzerlaw.com, by toll-free telephone at (888) 508-6832, or by visiting the firm’s website at www.holzerlaw.com/case/primoris/ for more information.

The deadline to ask the court to be appointed lead plaintiff in the case is September 21, 2026.