Hyliion Holdings Corp. faces a proposed securities class action alleging that it made false and misleading statements about a deal with a recently formed entity that appeared to lack actual business operations. Schall, Brown & Schwartz LLP says the transaction was intended to improve Hyliion's share price and that company executives, including the CEO and CFO, traded on the news. The complaint alleges violations of Sections 10(b) and 20(a) of the Securities Exchange Act of 1934 and Rule 10b-5. The proposed class covers investors who purchased Hyliion shares from May 12 through June 23, 2026, and the lead plaintiff deadline is October 27, 2026. Appointment as lead plaintiff is not required to participate in any potential recovery, and the class has not yet been certified.