William Carroll Murphy Goodwin - 31 Dec 2025 Form 5 Insider Report for Oklo Inc. (OKLO)

Role: Chief Legal & Strategy Officer
Signature: /s/ Richard Craig Bealmear, Attorney-in-Fact
Issuer symbol: OKLO
Transactions as of: 31 Dec 2025
Net transactions value: $0
Form type: 5
Filing time: 17 Feb 2026, 21:10:13 UTC
Previous filing: 10 Mar 2026
SEC: View on sec.gov

Reporting Owners (1)

Name	Relationship	Address	Signature	Signature date	CIK
Goodwin William Carroll Murphy	Chief Legal & Strategy Officer	C/O OKLO INC., 3190 CORONADO DR., SANTA CLARA	/s/ Richard Craig Bealmear, Attorney-in-Fact	17 Feb 2026	0002080717

Derivative Securities (e.g., puts, calls, warrants, options, convertible securities)

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Underlying Class	Amount	Exercise Price	Ownership	Footnotes
transaction	OKLO	Restricted Stock Units	Award	$0	+15,574		$0.000000	15,574	22 Dec 2025	Class A Common Stock	15,574		Direct	F1, F2

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

Explanation of Responses:

Id	Content
F1	Each restricted stock unit ("RSU") represents a contingent right to receive one share of the Issuer's Class A Common Stock.
F2	On December 22, 2025, the Reporting Person was granted 15,574 RSUs, vesting in three substantially equal annual installments beginning on December 31, 2025.