FORM 10-Q (Mark One) UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 x QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended June 30, 2025 OR o TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Oklo Inc. (Exact name of registrant as specified in its charter) Delaware 86-2292473 (State or other jurisdiction of incorporation or organization) 3190 Coronado Dr. Santa Clara, CA (Address ...