The legal action follows a sharp 17.2% decline in Hyliion’s stock price on June 23, 2026. This sell-off was triggered by a report from Pelican Way Research, which questioned the validity of a key customer agreement. That specific contract had previously acted as a catalyst for a 150% surge in the company's valuation, drawing intense skepticism from market analysts.

Rosen Law is now organizing a prospective class action to recover losses for those who acquired Hyliion securities during the period in question. Interested shareholders may contact Phillip Kim at 866-767-3653 or register via the firm’s website. The firm, led by Laurence Rosen, emphasizes that representation is handled on a contingency basis, ensuring no out-of-pocket expenses for participants. With a history of high-profile litigation in the securities sector, the firm is positioning itself to lead the potential recovery effort for affected investors.