Hyliion Holdings Corp. completed its de-SPAC transaction through Tortoise Acquisition Corp., which traded under the ticker SHLL and was sponsored by affiliates of Tortoise Capital Advisors. The SPAC went public in 2020, targeting the clean energy and commercial transportation sector, and closed its business combination with Hyliion — a developer of electrified powertrain solutions for Class 8 semi-trucks — later that same year, with the combined company subsequently trading on the NYSE under the ticker HYLN. Hyliion filed the referenced 8-K current report on May 23, 2024, as part of its ongoing post-merger public-company disclosure obligations. Sign up for a SpacDesk account to access the full filing history, deal timeline, and sponsor profile for this transaction.