Jacob DeWitte - 24 Dec 2025 Form 4 Insider Report for Oklo Inc. (OKLO)

Role: Co-Founder, CEO, Director, 10%+ Owner
Signature: /s/ Richard Craig Bealmear, Attorney-in-Fact
Issuer symbol: OKLO
Transactions as of: 24 Dec 2025
Net transactions value: $0
Form type: 4
Filing time: 29 Dec 2025, 17:16:12 UTC
Previous filing: 23 Dec 2025
Next filing: 17 Feb 2026
SEC: View on sec.gov

Reporting Owners (1)

Name	Relationship	Address	Signature	Signature date	CIK
DeWitte Jacob	Co-Founder, CEO, Director, 10%+ Owner	C/O OKLO INC., 3190 CORONADO DR., SANTA CLARA	/s/ Richard Craig Bealmear, Attorney-in-Fact	29 Dec 2025	0002021433

Transactions Table

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Ownership	Footnotes
transaction	OKLO	Class A Common Stock	Gift	$0	-7,851,901	-89%	$0.000000	928,197	24 Dec 2025	Direct	F1, F2
transaction	OKLO	Class A Common Stock	Gift	$0	-7,583,085	-89%	$0.000000	919,023	24 Dec 2025	By Caroline Cochran	F5, F6, F7
holding	OKLO	Class A Common Stock						7,851,901	24 Dec 2025	By the Jacob DeWitte Family Trust	F2
holding	OKLO	Class A Common Stock						1,000,000	24 Dec 2025	By Jacob DeWitte GRAT No. 2	F3
holding	OKLO	Class A Common Stock						1,580,000	24 Dec 2025	By Jacob DeWitte GRAT
holding	OKLO	Class A Common Stock						1,580,000	24 Dec 2025	By Caroline Cochran GRAT	F4
holding	OKLO	Class A Common Stock						7,583,085	24 Dec 2025	By the Caroline DeWitte Family Trust	F4, F6
holding	OKLO	Class A Common Stock						1,000,000	24 Dec 2025	By Caroline DeWitte GRAT No. 2	F4, F8

* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id	Content
F1	Excludes 1,000,000 shares previously owned directly which were contributed to a grantor retained annuity trust on December 24, 2025.
F2	On December 24, 2025, the Reporting Person transferred 7,851,901 shares to the Jacob DeWitte Family Trust for no consideration. The Reporting Person is trustee of the trust. The Reporting Person, members of his family and certain charitable organizations are the beneficiaries of the trust. The Reporting Person remains the beneficial owner of the securities held by the trust.
F3	These shares were previously reported as directly beneficially owned but were contributed to a grantor retained annuity trust on December 24, 2025.
F4	Represents securities beneficially owned by the Reporting Person's spouse.
F5	Excludes 1,000,000 shares previously owned by the Reporting Person's spouse which were contributed to a grantor retained annuity trust on December 24, 2025.
F6	On December 24, 2025, spouse of the Reporting Person transferred 7,583,085 shares to the Caroline DeWitte Family Trust for no consideration. Spouse of the Reporting Person is trustee of the trust. Spouse of the Reporting Person, members of her family and certain charitable organizations are the beneficiaries of the trust. Spouse of the Reporting Person remains the beneficial owner of the securities held by the trust.
F7	Represents securities held by the Reporting Person's spouse.
F8	These shares were previously reported as beneficially owned by the Reporting Person's spouse but were contributed to a grantor retained annuity trust on December 24, 2025.