ArcLight Clean Transition Corp (Nasdaq: ACTC), sponsored by ArcLight Capital Partners, completed its initial public offering in October 2020 targeting the clean energy and sustainable transportation sector. The blank-check company announced a business combination with Proterra Inc., a developer of electric transit buses and battery systems for commercial vehicles, with the merger closing in June 2021. Proterra began trading as a public company following the de-SPAC transaction before filing for Chapter 11 bankruptcy protection in August 2023. The Form 10-Q filed in November 2020 reflects ACTC's pre-combination status in the months immediately following its IPO. Sign up at SpacDesk to access full filing history, deal timelines, and analytics for ACTC and hundreds of other SPAC transactions.