AltC Acquisition Corp (NYSE: ALCC) is a special purpose acquisition company that completed its initial public offering in 2022, targeting the clean energy and advanced technology sectors. The SPAC was sponsored by AltC Sponsor LLC, a vehicle associated with technology entrepreneur Sam Altman and capital markets veteran Michael Klein. The company filed its 10-K annual report with the SEC on March 31, 2023, covering fiscal year 2022, at which point ALCC was still evaluating potential combination candidates. The SPAC subsequently announced a definitive merger agreement with Oklo Inc., a developer of advanced nuclear microreactors, and the business combination closed in May 2024. Sign up at SpacDesk for complete filing history, sponsor data, and deal analytics on ALCC and hundreds of other SPACs.