Oklo Inc. — Director's Dealing 2026

Mar 4, 2026

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: Oklo Inc. (OKLO)
CIK: 0001849056
Period of Report: 2026-03-02

Reporting Person: Cochran Caroline (Director, Co-Founder, COO, 10% Owner)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2026-03-02	Class A Common Stock	S	5950	$60.4413	Disposed	733073	Direct
2026-03-02	Class A Common Stock	S	16670	$61.495	Disposed	716403	Direct
2026-03-02	Class A Common Stock	S	9330	$62.5036	Disposed	707073	Direct
2026-03-02	Class A Common Stock	S	24210	$63.696	Disposed	682863	Direct
2026-03-02	Class A Common Stock	S	3839	$64.0572	Disposed	679024	Direct
2026-03-02	Class A Common Stock	S	40000	$64.3271	Disposed	1310000	Indirect
2026-03-02	Class A Common Stock	S	5951	$60.4413	Disposed	742246	Indirect
2026-03-02	Class A Common Stock	S	16670	$61.495	Disposed	725576	Indirect
2026-03-02	Class A Common Stock	S	9329	$62.5036	Disposed	716247	Indirect
2026-03-02	Class A Common Stock	S	24211	$63.696	Disposed	692036	Indirect
2026-03-02	Class A Common Stock	S	3840	$64.0572	Disposed	688196	Indirect
2026-03-02	Class A Common Stock	S	40000	$64.3271	Disposed	1310000	Indirect

Holdings (Non-Derivative)

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

Footnotes

F1: The sales reported herein were effected pursuant to a Rule 10b5-1 plan adopted on March 31, 2025.

F2: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $60.00- $61.00 inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth herein.

F3: 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.

F4: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $61.01 - $62.00 inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth herein.

F5: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $62.01- $63.01 inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth herein.

F6: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $63.02- $64.02 inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth herein.

F7: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $64.02- $64.71 inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth herein.

F8: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $64.01- $64.87 inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth herein.

F9: Represents securities held by the Reporting Person's spouse.

F10: Represents securities beneficially owned by the Reporting Person's spouse.