Hyliion Holdings Corp.

Hyliion Holdings Corp., which came public through Tortoise Acquisition Corp. (ticker: SHLL), completed its de-SPAC merger in October 2020 after Tortoise Capital Advisors sponsored the blank-check vehicle that IPO'd earlier that year. The combined company operates in the commercial vehicle electrification sector, developing hybrid and fully electric powertrain solutions for Class 8 semi-trucks and other heavy-duty freight applications. Now a post-merger public company, Hyliion filed a definitive proxy statement (DEF 14A) with the SEC in April 2026, continuing its public reporting obligations as an operating enterprise in the clean transportation and commercial trucking technology industry. For comprehensive filing history, ownership data, and SPAC deal analytics on Hyliion and hundreds of comparable transactions, sign up for full access at SpacDesk.