Hyliion Holdings Corp. completed its merger with blank-check company Tortoise Acquisition Corp., which traded on Nasdaq under the ticker SHLL, on October 1, 2020, as disclosed in an 8-K filing with the SEC. Tortoise Acquisition Corp. was sponsored by Tortoise Capital Advisors and conducted its initial public offering in 2019, targeting opportunities in the clean energy and commercial transportation sectors. Hyliion develops electrified powertrain technologies for Class 8 semi-trucks, aiming to reduce emissions across the heavy-duty freight industry. Following the close, the combined entity began trading as Hyliion Holdings Corp. under the ticker HYLN. Sign up on SpacDesk for full data, filings, and analytics on this transaction and every active SPAC.