HYLN UPCOMING DEADLINE: Faruqi & Faruqi, LLP Reminds Hyliion Investors of Securities Class Action Lawsuit Deadline on October 27, 2026

Faruqi & Faruqi, LLP Securities Litigation Partner James (Josh) Wilson Encourages Investors Who Suffered Losses In Hyliion To Contact Him Directly To Discuss Their Options If you purchased or acquired securities in Hyliion between May 12, 2026 and June 23, 2026 and would like to discuss your legal rights, call Faruqi & Faruqi partner Josh Wilson directly at 877-247-4292 or 212-983-9330 (Ext. 1310) . [You may also click here for additional information] Faruqi & Faruqi, LLP , a leading national securities law firm, is investigating potential claims against Hyliion Holdings Corp. ("Hyliion" or the "Company") (NYSE American: HYLN) and reminds investors of the October 27, 2026 deadline to seek the role of lead plaintiff in a federal securities class action that has been filed against the Company. Faruqi & Faruqi is a leading national securities law firm with offices in New York, Pennsylvania, California and Georgia. The firm has recovered hundreds of millions of dollars for investors since its founding in 1995. See www.faruqilaw.com .

The complaint alleges that the Company and its executives violated federal securities laws by making false and/or misleading statements and/or failing to disclose 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 Individual Defendants 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. On June 23, 2026, Pelican Way Research issued a report entitled "Hyliion: A Glorified Science Project Who Has Continuously Failed to Meet Expectations And Is Now Throwing Around A Meaningless Deal." On this news, Hyliion's stock price fell $1.27, or 17.2%, to close at $6.10 per share on June 23, 2026. The court-appointed lead plaintiff is the investor with the largest financial interest in the relief sought by the class who is adequate and typical of class members who directs and oversees the litigation on behalf of the putative class. Any member of the putative class may move the Court to serve as lead plaintiff through counsel of their choice, or may choose to do nothing and remain an absent class member. Your ability to share in any recovery is not affected by the decision to serve as a lead plaintiff or not. Faruqi & Faruqi, LLP also encourages anyone with information regarding Hyliion's conduct to contact the firm, including whistleblowers, former employees, shareholders and others. To learn more about the Hyliion class action, go to www.faruqilaw.com/[HYLN](/www.%5BBIO/us/HYLN) or call Faruqi & Faruqi partner Josh Wilson directly at 877-247-4292 or 212-983-9330 (Ext. 1310) . Follow us for updates on LinkedIn , on X , or on Facebook .

What is the Hyliion securities fraud lawsuit about? The lawsuit alleges that Hyliion Holdings Corp. and certain of its executives engaged in securities fraud during the class period by making materially false and misleading statements about the company's business, operations, and prospects. Specifically, the complaint allegedly asserts that Defendants announced a deal with a recently formed entity that does not appear to have any actual business operations, purportedly to cause rapid and artificial appreciation in Hyliion's stock price. The lawsuit further alleges that certain individual defendants timed the announcement and resulting price appreciation to engage in insider trading. On June 23, 2026, Pelican Way Research published a report critical of the company and its deal announcement, after which Hyliion's stock price allegedly fell $1...