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Oklo Inc. Director's Dealing 2025

Dec 29, 2025

30350_dirs_2025-12-29_7ed6e337-6769-4a7a-b1af-e662e15822a6.zip

Director's Dealing

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SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: Oklo Inc. (OKLO)
CIK: 0001849056
Period of Report: 2025-12-24

Reporting Person: DeWitte Jacob (N/A)

Non-Derivative Transactions

Date Security Code Shares Price A/D Holdings After Ownership
2025-12-24 Class A Common Stock G 7851901 Disposed 928197 Direct
2025-12-24 Class A Common Stock G 7583085 Disposed 919023 Indirect

Holdings (Non-Derivative)

Security Shares Ownership
Class A Common Stock 7851901 Indirect
Class A Common Stock 1000000 Indirect
Class A Common Stock 1580000 Indirect
Class A Common Stock 1580000 Indirect
Class A Common Stock 7583085 Indirect
Class A Common Stock 1000000 Indirect

Footnotes

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.