X0609 4 2026-10-20 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 2026-10-20 4 S 0 1021 26.50 D 10669 D The sale was effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on April 2, 2026. The amount reported in Column 5 reflects a reduction of 4,120 shares to correct an administrative double-counting in prior reports. These shares were included in the Report Person's opening direct holdings and subsequently included again when the related restricted stick units settled. No transaction occurred in connection with this correction. /s/ Richard Craig Bealmear, Attorney-in-Fact 2026-10-22