AUSTIN, Texas–(BUSINESS WIRE)–Hyliion Holdings Corp. (NYSE American: HYLN) (“Hyliion”), a developer of modular power plant technology, today reported financial results for the first quarter ended March 31, 2026, and provided key updates on the development of the KARNO™ Power Module platform. Key Business Highlights Successfully completed non-recurring UL certification testing of the KARNO Power Module, a key milestone for enabling customer site deliveries Executed an LOI with advanced data ce