X0609 4 2026-10-06 0 0001849056 Oklo Inc. OKLO 0002146790 Narayanadas Vivek false C/O OKLO INC. 3190 CORONADO DRIVE SANTA CLARA CA 95054 0 1 0 0 General Counsel & Secretary 1 Class A Common Stock 2026-10-06 4 S 0 288 37.29 D 8446 D Class A Common Stock 5000 I Joint account with spouse 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 as disclosed on the Reporting Person's Form 4 filed on October 6, 2026. 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 2026-10-08