Oklo Inc. (NYSE: OKLO) is an advanced nuclear fission energy company that reached public markets through a business combination with AltC Acquisition Corp., a blank-check company that completed its IPO in 2021. AltC was sponsored by AltC Sponsor LLC and co-founded by OpenAI chief executive Sam Altman, with the SPAC targeting the clean and alternative power generation sector. The de-SPAC transaction closed in May 2024, after which the combined entity began trading on the New York Stock Exchange under the OKLO ticker. The company designs compact fission power plants, branded as Aurora powerhouses, for commercial and industrial energy customers. Sign up for SpacDesk to access full filings, sponsor profiles, and deal analytics on Oklo and hundreds of other SPAC transactions.