C5 Acquisition Corporation
A special purpose acquisition company (SPAC) — a "blank check" firm that raises public money to merge with a private business and take it public. Formed in 2021 and based in Washington, D.C., C5 Acquisition set its sights on national-security innovation, focusing on space, cybersecurity, and energy transition. It was named after C5 Capital, the venture firm behind it, whose "C5" points to the secure data ecosystem of cybersecurity, AI, cloud, and space. When no merger closed in time, it wound down and returned money to shareholders in 2023.
Class A Common Stock — Liquidated October 2023 after failing to complete business combination