AltC Acquisition Corp., a blank-check company sponsored by AltC Partners LLC and associated with entrepreneur Sam Altman, completed its initial public offering in July 2021 under the ticker ALCC. The special purpose acquisition company targeted the advanced energy sector, ultimately announcing a business combination with Oklo Inc., a developer of compact advanced fission reactors and clean energy technology. The de-SPAC merger closed in May 2024, and the combined company began trading on the New York Stock Exchange under the ticker OKLO. Oklo operates in the nuclear and clean energy sector, focused on commercializing small modular fission power plants. Visit SpacDesk and sign up for full data, filings, and deal analytics on OKLO and hundreds of other SPAC transactions.