The investor-rights firm said it is preparing a class action after a June 23 report questioned the legitimacy of a key customer agreement tied to a prior share-price surge.
Rosen Law Firm said it is investigating potential securities claims on behalf of shareholders of Hyliion Holdings Corp. over allegations the company may have issued materially misleading business information to investors. The firm said it is preparing a class action and that investors who purchased Hyliion securities may be entitled to compensation through a contingency fee arrangement. The investigation follows a June 23, 2026 Investing.com article titled "Hyliion stock tumbles on short seller report questioning VFG deal," which said the company’s shares fell after Pelican Way Research released a short report questioning the legitimacy of a key customer agreement that had previously helped send the stock up about 150%. Hyliion shares fell 17.2% on June 23, 2026. Rosen Law Firm urged investors interested in joining the prospective class action to contact the firm through its case page, phone, or email for more information.