[SCHEDULE 13D/A] Oklo Inc. SEC Filing

SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

SCHEDULE 13D

Under the Securities Exchange Act of 1934

(Amendment No. 4)

Oklo Inc.

(Name of Issuer)

Class A Common Stock, par value $0.0001 per share

(Title of Class of Securities)

02156V109

(CUSIP Number)

Jacob DeWitte, c/o Oklo Inc.
3190 Coronado Drive,
Santa Clara, CA, 95054
(844) 200-3276

(Name, Address and Telephone Number of Person Authorized to Receive Notices and Communications)

06/30/2025

(Date of Event Which Requires Filing of This Statement)

If the filing person has previously filed a statement on Schedule 13G to report the acquisition that is the subject of this Schedule 13D, and is filing this schedule because of §§ 240.13d-1(e), 240.13d-1(f) or 240.13d-1(g), check the following box.

The information required on the remainder of this cover page shall not be deemed to be "filed" for the purpose of Section 18 of the Securities Exchange Act of 1934 ("Act") or otherwise subject to the liabilities of that section of the Act but shall be subject to all other provisions of the Act (however, see the Notes).

SCHEDULE 13D

CUSIP No. 02156V109

1

Name of reporting person

Jacob DeWitte

2

Check the appropriate box if a member of a Group (See Instructions)

(a)
(b)

3

SEC use only

4

Source of funds (See Instructions)

OO

5

Check if disclosure of legal proceedings is required pursuant to Items 2(d) or 2(e)

6

Citizenship or place of organization

UNITED STATES

Number of Shares Beneficially Owned by Each Reporting Person With:

7	Sole Voting Power 0.00
8	Shared Voting Power 23,907,206.00
9	Sole Dispositive Power 0.00
10	Shared Dispositive Power 23,907,206.00

11

Aggregate amount beneficially owned by each reporting person

23,907,206.00

12

Check if the aggregate amount in Row (11) excludes certain shares (See Instructions)

13

Percent of class represented by amount in Row (11)

16.2 %

14

Type of Reporting Person (See Instructions)

IN

SCHEDULE 13D

CUSIP No. 02156V109

1

Name of reporting person

Caroline Cochran

2

Check the appropriate box if a member of a Group (See Instructions)

(a)
(b)

3

SEC use only

4

Source of funds (See Instructions)

OO

5

Check if disclosure of legal proceedings is required pursuant to Items 2(d) or 2(e)

6

Citizenship or place of organization

UNITED STATES

Number of Shares Beneficially Owned by Each Reporting Person With:

7	Sole Voting Power 0.00
8	Shared Voting Power 23,907,206.00
9	Sole Dispositive Power 0.00
10	Shared Dispositive Power 23,907,206.00

11

Aggregate amount beneficially owned by each reporting person

23,907,206.00

12

Check if the aggregate amount in Row (11) excludes certain shares (See Instructions)

13

Percent of class represented by amount in Row (11)

16.2 %

14

Type of Reporting Person (See Instructions)

IN

SCHEDULE 13D

Item 1.	Security and Issuer
(a)	Title of Class of Securities: Class A Common Stock, par value $0.0001 per share
(b)	Name of Issuer: Oklo Inc.
(c)	Address of Issuer's Principal Executive Offices: 3190 Coronado Drive, Santa Clara, CALIFORNIA , 95054.
Item 1 Comment: This Amendment No. 4 to Schedule 13D (this "Amendment No. 4") amends and supplements the statement on Schedule 13D filed with the United States Securities and Exchange Commission on May 16, 2024 (as amended to date, the "Schedule 13D"), relating to the Class A common stock, par value $0.0001 per share (the " Class A Common Stock"), of Oklo Inc., a Delaware corporation (the "Issuer"). Capitalized terms used herein without definition shall have the meaning set forth in the Schedule 13D.
Item 5.	Interest in Securities of the Issuer
(a)	Item 5 of the Schedule 13D is hereby amended and restated in its entirety as follows: The information contained on the cover pages is incorporated by reference to this Item 5. The Reporting Persons may be deemed to beneficially own an aggregate of 23,907,206 shares of Class A Common Stock, representing 16.2% of the Class A Common Stock outstanding based upon 147,380,826 shares of Class A Common Stock outstanding as of June 13, 2025, as set forth in the Issuer's Prospectus Supplement filed with the Securities and Exchange Commission on June 13, 2025.
(b)	The information contained on the cover pages is incorporated by reference to this Item 5. The amounts reflected in the cover pages consist of (i) 10,105,098 shares of Class A Common Stock held of record by Mr. DeWitte, (ii) 9,802,108 shares of Class A Common Stock held of record by Ms. Cochran; (iii) 2,000,000 shares of Class A Common Stock held of record by Mr. DeWitte's GRAT; and (iv) 2,000,000 shares of Class A Common Stock held of record by Ms. Cochran's GRAT. The amounts reported herein do not include any vested RSUs which are not expected to settle within 60 days of the date of this filing. Mr. DeWitte and Ms. Cochran are married and, as a result, may be deemed to share beneficial ownership of each other's securities.
(c)	On May 29, 2025, the Reporting Persons gifted an aggregate of 200,000 shares of Class A Common Stock for no consideration. On June 24, 2025, the Reporting Persons gifted an aggregate of 600,000 shares of Class A Common Stock for no consideration. On June 30, 2025, the Reporting Persons disposed of an aggregate of 600,000 shares of Class A Common Stock at a weighted average price of $55.1973 per share in a series of open-market transactions pursuant to their 10b5-1 Trading Plan entered into on March 31, 2025. The Reporting Persons undertake to provide, upon request by the staff of the SEC, the Issuer, or a security holder of the Issuer, full information regarding the number of shares sold at each separate price for each transaction.
(d)	None.
(e)	Not applicable.

SIGNATURE

After reasonable inquiry and to the best of my knowledge and belief, I certify that the information set forth in this statement is true, complete and correct.

Jacob DeWitte

Signature:	/s/ Richard Craig Bealmear
Name/Title:	Richard Craig Bealmear, Attorney-in-Fact
Date:	07/02/2025

Caroline Cochran

Signature:	/s/ Richard Craig Bealmear
Name/Title:	Richard Craig Bealmear, Attorney-in-Fact
Date:	07/02/2025