Statement of Changes in Beneficial Ownership (Form 4)

FORM 4 Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b). Check this box to indicate that a transaction was made pursuant to a contract, instruction or written plan that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). See Instruction 10.

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIES 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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1. Name and Address of Reporting Person * DeWitte Jacob 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 (Last) (First) (Middle) C/O OKLO INC., 3190 CORONADO DR. 3. Date of Earliest Transaction (Month/Day/Year) 03/30/2026 (Street) SANTA CLARA, CA 95054 4. If Amendment, Date 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 (City) (State) (Zip) 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)

Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
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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 Underlying Securities (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 of Derivative Security: 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

Reporting Owners

Reporting Owner Name / Address	Relationships
	Director	10% Owner	Officer	Other
DeWitte Jacob C/O OKLO INC. 3190 CORONADO DR. SANTA CLARA, CA 95054	X	X	Co-Founder, CEO

Signatures

/s/ Richard Craig Bealmear, Attorney-in-Fact		04/01/2026
**Signature of Reporting Person		Date

Explanation of Responses:

*	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).
(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.

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