X0609 4 2026-09-01 0 0001849056 Oklo Inc. OKLO 0002147680 Renner Alexandra false C/O OKLO INC. 3190 CORONADO DRIVE SANTA CLARA CA 95054 0 1 0 0 Chief Product Officer 0 Class A Common Stock 2026-09-01 4 S 0 1930 38.40 D 475022 D Represents the number of shares sold by the Reporting Person to cover tax withholding obligations in connection with the vesting and settlement of the RSUs. The sale was to satisfy tax withholding obligations to be funded by a "sell to cover" transaction and does not represent a discretionary transaction by the Reporting Person. /s/ Richard Craig Bealmear, Attorney-in-Fact 2026-09-03