FORM 4 UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940
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Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).
1. Name and Address of Reporting Person *
DeWitte Jacob

(Last) (First) (Middle)
C/O OKLO INC.
3190 CORONADO DR.

(Street)
SANTA CLARA CA 95054

(City) (State) (Zip)
2. Issuer Name and Ticker or Trading Symbol
Oklo Inc. [ OKLO ]
5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)
X Director X 10% Owner
X Officer (give title below) Other (specify below)
Co-Founder, CEO
3. Date of Earliest Transaction (Month/Day/Year)
03/30/2026
4. If Amendment, Date of Original Filed (Month/Day/Year)
6. Individual or Joint/Group Filing (Check Applicable Line)
X Form filed by One Reporting Person
Form filed by More than One Reporting Person
Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1. Title of Security (Instr. 3) 2. Transaction Date (Month/Day/Year) 2A. Deemed Execution Date, if any (Month/Day/Year) 3. Transaction Code (Instr. 8) 4. Securities Acquired (A) or Disposed Of (D) (Instr. 3, 4 and 5) 5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4) 6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4) 7. Nature of Indirect Beneficial Ownership (Instr. 4)
Code V Amount (A) or (D) Price
Class A Common Stock 03/30/2026   J (1)   506,807 A $ 0 7,851,901 (2) I By the Jacob DeWitte Family Trust
Class A Common Stock 03/31/2026   J (1)   506,807 A $ 0 506,807 (2) I By Jacob DeWitte GRAT No. 3
Class A Common Stock               751,533 (2) D  
Class A Common Stock               696,483 (2) I By Jacob DeWitte GRAT
Class A Common Stock               1,000,000 (2) I By Jacob DeWitte GRAT No. 2
Class A Common Stock 03/30/2026   J (3)   474,011 A $ 0 7,583,085 I By the Caroline DeWitte Family Trust (4)
Class A Common Stock 03/31/2026   J (3)   474,011 A $ 0 474,011 I By Caroline Cochran GRAT No.3 (4)
Class A Common Stock               718,039 I By Caroline Cochran (5)
Class A Common Stock               729,479 I By Caroline Cochran GRAT (4)
Class A Common Stock               1,000,000 I By Caroline DeWitte GRAT No. 2 (4)
Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned
(e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 3) 2. Conversion or Exercise Price of Derivative Security 3. Transaction Date (Month/Day/Year) 3A. Deemed Execution Date, if any (Month/Day/Year) 4. Transaction Code (Instr. 8) 5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5) 6. Date Exercisable and Expiration Date (Month/Day/Year) 7. Title and Amount of Securities Underlying Derivative Security (Instr. 3 and 4) 8. Price of Derivative Security (Instr. 5) 9. Number of derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4) 10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4) 11. Nature of Indirect Beneficial Ownership (Instr. 4)
Code V (A) (D) Date Exercisable Expiration Date Title Amount or Number of Shares
Explanation of Responses:
1. On March 30, 2026, 506,807 shares were distributed to the Jacob DeWitte Family Trust as an annuity distribution pursuant to the terms of the Jacob DeWitte GRAT, the Reporting Person's grantor retained annuity trust. On March 31, 2026, the same 506,807 shares held by the Jacob DeWitte Family Trust were contributed to the Jacob DeWitte GRAT No. 3 in connection with the funding of the Jacob DeWitte GRAT No. 3.
2. For more information about the equity of the Issuer held by the Reporting Person, please see the Issuer's most recent definitive proxy statement filed with the Securities and Exchange Commission.
3. On March 30, 2026, 474,011 shares were distributed to the Caroline DeWitte Family Trust as an annuity distribution pursuant to the terms of the Caroline Cochran GRAT, the Reporting Person's spouse's grantor retained annuity trust. On March 31, 2026, the same 474,011 shares held by the Caroline DeWitte Family Trust were contributed to the Caroline DeWitte GRAT No.3 in connection with the funding of the Caroline DeWitte GRAT No. 3.
4. Represents securities beneficially owned by the Reporting Person's spouse.
5. Represents securities held by the Reporting Person's spouse.
/s/ Richard Craig Bealmear, Attorney-in-Fact 04/01/2026
** Signature of Reporting Person Date
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* If the form is filed by more than one reporting person, see Instruction 4 (b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
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