System1, Inc.

System1, Inc. (NYSE: SST) is a customer acquisition technology company that entered the public markets through a merger with Trebia Acquisition Corp, a blank-check vehicle sponsored by Trasimene Capital Management and Cannae Holdings that completed its initial public offering in 2020. Operating an omnichannel customer acquisition platform called RAMP across the digital advertising sector, System1 closed its de-SPAC transaction in January 2022 and has since traded on the New York Stock Exchange. The company filed an 8-K with the SEC on May 12, 2026, under accession number 0001805833-26-000025. Sign up at SpacDesk for full filing history, sponsor data, and real-time analytics on SST and hundreds of other SPAC-originated companies.