Table of Contents As filed with the Securities and Exchange Commission on August 30, 2024. Registration No. 333-280344 UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 AMENDMENT NO. 1 TO FORM S-1 REGISTRATION STATEMENT UNDER THE SECURITIES ACT OF 1933 Oklo Inc. (Exact Name of Registrant as Specified in Its Charter) (State or Other Jurisdiction of Incorporation or Organization) Copies to: Ryan J. Maierson Latham & Watkins LLP 811 Main Street, Suite 3700 Houston, Texas 77002 (713) 546 - ...

Registration No. 333- UNDER THE SECURITIES ACT OF 1933 UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM S-1 Table of Contents As filed with the Securities and Exchange Commission on June 20, 2024. REGISTRATION STATEMENT Oklo Inc. (Exact Name of Registrant as Specified in Its Charter) (State or Other Jurisdiction of Incorporation or Organization) (Primary Standard Industrial Classification Code Number) Delaware 4911 86-2292473 (I.R.S. Employer Identification No.) 3190 Coronado Dr. ...