ATLANTA, GA – – (Globe Newswire – August 31, 2026) – – A shareholder class action lawsuit has been filed against Hyliion Holdings Corp. (“Hyliion”) (NYSE: HYLN). The lawsuit alleges that Defendants made false and misleading statements and/or failed to disclose material adverse facts, including allegations that:  (1) in order to cause rapid price appreciation in Hyliion stock, Defendants announced a deal with an entity that was very recently formed and does not appear to have any actual business operations; (2) the CEO and CFO timed the announcement and foregoing price appreciation to insider trade; and (3) as a result, Defendants’ statements about Hyliion’s business, operations, and prospects, were materially false and misleading and/or lacked a reasonable basis at all relevant times.

 If you purchased Hyliion shares between May 12, 2026 and June 23, 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/hyliion-holdings/ for more information.

 The deadline to ask the court to be appointed lead plaintiff in the case is October 27, 2026.