Hyliion Holdings Corp. came to market through Tortoise Acquisition Corp., a blank-check company that completed its initial public offering in January 2020 under the ticker SHLL on the New York Stock Exchange. Sponsored by energy-focused investment manager Tortoise Capital Advisors, the vehicle targeted the clean transportation and commercial vehicle electrification sector. The de-SPAC merger with Hyliion Inc., an Austin, Texas-based developer of hybrid and fully electric powertrain systems for Class 8 semi-trucks, closed in October 2020, with the combined company registering its securities on Form S-1 and subsequently trading under the ticker HYLN. For comprehensive data on SHLL, Hyliion Holdings, and thousands of other SPAC transactions, create a free account at SpacDesk.