Washington, D.C. 20549 FORM 10-Q/A (Mark One) QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended March 31, 2026 OR TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period fromto Commission file number 001-40583 Oklo Inc. (Exact name of registrant as specified in its charter) 86-2292473 N/A (Former name, former address and former fiscal year, if changed since last report) Securities registered pursuant to Section 12(b) of the Act: Indicate by check mark whether the registrant: (1) has filed all reports required to be filed by Section 13 or 15(d) of the SecuritiesExchange Act of 1934 during the preceding 12 months (or for such shorter period that the registrant was required to file such reports),and (2) has been subject to such filing requirements for the past 90 days.YesNo Indicate by check mark whether the registrant has submitted electronically every Interactive Data File required to be submittedpursuant to Rule 405 of Regulation S-T (§232.405 of this chapter) during the preceding 12 months (or for such shorter period that theregistrant was required to submit such files).YesNo Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer, a smallerreporting company, or an emerging growth company. See the definitions of “large accelerated filer,” “accelerated filer,” “smallerreporting company,” and “emerging growth company” in Rule 12b-2 of the Exchange Act. If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period forcomplying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. Indicate by check mark whether the registrant is a shell company (as defined in Rule 12b-2 of the ExchangeAct).YesNo The registrant had 173,990,987 shares of Class A common stock outstanding as of May7, 2026. EXPLANATORY NOTE The sole purpose of this Amendment No. 1 on Form 10-Q/A is to amend the certification filed as Exhibit 31.2 to the Quarterly Reporton Form 10-Q of Oklo Inc. (the "Company") for the quarterly period ended March 31, 2026, filed with the U.S. Securities andExchange Commission on May 12, 2026 (the "Original Filing") to correct the inadvertent omission of the conformed signature of theChief Financial Officer. The certification was fully executed on May 12, 2026 and was in the Company's possession at the time of theOriginal Filing. Other than set forth above, this Amendment No. 1 does not modify, amend or update in any way the financial or other informationcontained in the Original Filing, nor does this Amendment No. 1 reflect events that may have occurred after the Original Filing. TABLE OF CONTENTS SPECIAL NOTE REGARDING FORWARD-LOOKING STATEMENTS This Quarterly Report on Form 10-Q (this “Quarterly Report”) of Oklo Inc. (“Oklo,” the “Company,” “we,” “our,” and “us”) containscertain forward-looking statements within the meaning of Section 27A of the Securities Act of 1933, as amended (the “SecuritiesAct”), and Section 21E of the Securities Exchange Act of 1934, as amended (the “Exchange Act”). Forward-looking statements relateto future events or future performance and include, without limitation, statements concerning our business strategy, future revenues,market growth, capital requirements, product introductions, expansion plans and the adequacy of our funding. Other statementscontained in this Quarterly Report that are not historical facts are also forward-looking statements. We have tried, wherever possible,to identify forward-looking statements by terminology such as “may,” “will,” “could,” “should,” “expects,” “anticipates,” “intends,”“plans,”“believes,”“seeks,”“estimates,”“continue,”“might,”“possible,”“potential,”“predict,”“project,”“goal,”“would,”“commit” and other stylistic variants denoting forward-looking statements. We caution investors that any forward-looking statements presented in this Quarterly Report, or that we may make orally or in writingfrom time to time, are based on information currently available, as well as our beliefs and assumptions. The actual outcome related toforward-looking statements will be affected by known and unknown risks, trends, uncertainties, and factors that are beyond our controlor ability to predict. Although we believe that our assumptions are reasonable, they are not guarantees of future performance, and somewill inevitably prove to be incorrect. As a result, our actual future results can be expected to differ from our expectations, and thosedifferences may be material. Accordingly, investors should use caution in relying on forward-looking statements, which are based onlyon known results and trends at the time they are made, to anticipate future results or trends. The forward-looking statements contained in this Quarterly Repor