Trine Acquisition Corp (Nasdaq: TRNE), a blank-check company backed by Vector Capital, held its initial public offering in 2018 targeting the technology and industrial sectors. The SPAC pursued and completed a business combination with Desktop Metal, a Burlington, Massachusetts-based company specializing in additive manufacturing and 3D printing technology, with that transaction closing in late 2020. The S-4/A amendment filed with the SEC on October 7, 2021 represents a post-combination registration update tied to the Desktop Metal deal, reflecting continued compliance activity following the close. TRNE's combination gave public investors access to one of the higher-profile names in next-generation industrial manufacturing. Sign up at SpacDesk for full filing history, deal timelines, and analytics across the SPAC market.