Oklo CPO gains 1,201 shares from stock units

Oklo Inc. officer Alexandra Renner, Chief Product Officer, reported the vesting and settlement of 1,201 Restricted Stock Units (RSUs) into an equal number of shares of Class A Common Stock on August 13, 2026.

Rhea-AI Filing Summary

Oklo Inc. officer Alexandra Renner, Chief Product Officer, reported the vesting and settlement of 1,201 Restricted Stock Units (RSUs) into an equal number of shares of Class A Common Stock on August 13, 2026. Following this RSU conversion, she directly holds 473,336 shares of Class A Common Stock and 51,659 RSUs, plus an additional 123,153 shares held indirectly through a joint account with her spouse.

The vested RSUs are part of a prior grant of 72,081 RSUs awarded on March 13, 2025, which vests 20% of the underlying shares on March 13, 2026 and continues vesting thereafter in 48 substantially equal monthly installments.

Insider Trade Summary

1,201 shares exercised/converted

Exercise 3 txns

Insider Renner Alexandra

Role Chief Product Officer

Type	Security	Shares	Price	Value
Exercise	Restricted Stock Units F1, F2	1,201	$0.00	$0.00
Exercise	Class A Common Stock F1	1,201	--	--
holding	Class A Common Stock	--	--	--

Holdings After Transaction: Restricted Stock Units — 51,659 contracts (Direct); Class A Common Stock — 473,336 shares (Direct); Class A Common Stock — 123,153 shares (Indirect, Joint account with spouse)

Footnotes (2)

1. F1. Each restricted stock unit ("RSU") represents a contingent right to receive one share of the Issuer's Class A Common Stock.
2. F2. On March 13, 2025, the Reporting Person was granted 72,081 RSUs, vesting as to 20% of the underlying shares on March 13, 2026 and continuing to vest thereafter in 48 substantially equal monthly installments. On August 13, 2026, 1,201 RSUs vested.

Key Figures

RSUs vested and converted: 1,201 units/shares Original RSU grant: 72,081 units RSUs remaining after transaction: 51,659 units +4 more

7 metrics

RSUs vested and converted 1,201 units/shares RSUs vested and converted into Class A Common Stock on August 13, 2026

Original RSU grant 72,081 units RSUs granted to Alexandra Renner on March 13, 2025

RSUs remaining after transaction 51,659 units Total RSUs reported following the August 13, 2026 vesting event

Direct common shares after transaction 473,336 shares Direct Class A Common Stock holdings following RSU settlement

Indirect common shares (joint account) 123,153 shares Class A Common Stock held indirectly in a joint account with spouse

Initial cliff vesting percentage 20% Portion of the 72,081 RSUs scheduled to vest on March 13, 2026

Monthly vesting installments 48 months Remaining RSUs vest in 48 substantially equal monthly installments after March 13, 2026

Key Terms

Restricted Stock Units, Class A Common Stock, substantially equal monthly installments, Joint account with spouse

4 terms

Restricted Stock Units financial

"Each restricted stock unit ("RSU") represents a contingent right to receive one share"

Restricted stock units are a type of company reward where employees are promised shares of stock, but they only fully own these shares after meeting certain conditions, like staying with the company for a set time. They matter because they can become valuable assets and are often used to motivate employees to help the company succeed.

Class A Common Stock financial

"one share of the Issuer's Class A Common Stock"

Class A common stock is a category of a company’s shares that carries a specific set of ownership rights—most commonly defined voting power and claims on dividends—set out in the company’s charter. For investors it matters because the class determines how much influence you have over corporate decisions, the share’s likely dividend and trading behavior, and how it compares in value to other share classes, like choosing a particular seat with different privileges at the company’s decision-making table.

substantially equal monthly installments financial

"continuing to vest thereafter in 48 substantially equal monthly installments"

Joint account with spouse financial

"nature_of_ownership":"Joint account with spouse"

FAQ

AI-generated questions and answers. How Rhea-AI works. Not financial advice.

What transaction did Oklo (OKLO) Chief Product Officer Alexandra Renner report on this Form 4?

Alexandra Renner reported the vesting and conversion of 1,201 RSUs into 1,201 shares of Oklo Class A Common Stock on August 13, 2026, reflecting routine settlement of a previously granted equity award.

How many Oklo (OKLO) Restricted Stock Units vested for Alexandra Renner on August 13, 2026?

On August 13, 2026, 1,201 RSUs vested for Alexandra Renner. These RSUs come from a prior grant and each unit represents a contingent right to receive one share of Oklo’s Class A Common Stock upon vesting.

What are Alexandra Renner’s reported direct and indirect Oklo (OKLO) share holdings after this transaction?

After the transaction, Alexandra Renner directly holds 473,336 shares of Oklo Class A Common Stock and 51,659 RSUs, and indirectly holds 123,153 shares through a joint account with her spouse, as disclosed in the filing.

What is the size and vesting schedule of Alexandra Renner’s Oklo (OKLO) RSU grant mentioned in the Form 4?

Renner was granted 72,081 RSUs on March 13, 2025. The award vests 20% of the underlying shares on March 13, 2026, with the remainder vesting in 48 substantially equal monthly installments thereafter.

Does the Oklo (OKLO) Form 4 indicate a Rule 10b5-1 trading plan for Alexandra Renner’s transactions?

The Form 4’s Rule 10b5-1 checkbox is not marked as affirming a trading plan. The transactions described relate to scheduled RSU vesting and conversion, rather than open-market buying or selling under a disclosed 10b5-1 plan.

AI-generated analysis. How Rhea-AI works. Not financial advice.

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Accepted by SEC EDGAR 08/17/2026 - 04:21 PM EDT Learn about SEC filing dates

SEC Form 4

FORM 4

UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940

OMB APPROVAL

OMB Number:			3235-0287
Estimated average burden
hours per response:			0.5

Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

Check this box to indicate that a transaction was made pursuant to a contract, instruction or written plan for the purchase or sale of equity securities of the issuer that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). See Instruction 10.

1. Name and Address of Reporting Person^*

Renner Alexandra

(Last) (First) (Middle)

C/O OKLO INC.

3190 CORONADO DRIVE

(Street)

SANTA CLARA CALIFORNIA 95054

(City) (State) (Zip)

UNITED STATES

(Country)

2. Issuer Name and Ticker or Trading Symbol
Oklo Inc. [ OKLO ]

5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)

	Director		10% Owner
X	Officer (give title below)		Other (specify below)
	Chief Product Officer

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
08/13/2026

6. Individual or Joint/Group Filing (Check Applicable Line)

X	Form filed by One Reporting Person
	Form filed by More than One Reporting Person

4. If Amendment, Date of Original Filed (Month/Day/Year)

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	3. Transaction Code (Instr. 8)		4. Securities Acquired (A) or Disposed Of (D) (Instr. 3, 4 and 5)			5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4)	6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
			Code	V	Amount	(A) or (D)	Price
Class A Common Stock	08/13/2026		M		1,201	A	(1)	473,336	D
Class A Common Stock								123,153	I	Joint account with spouse

Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 3)	2. Conversion or Exercise Price of Derivative Security	3. Transaction Date (Month/Day/Year)	3A. Deemed Execution Date, if any (Month/Day/Year)	4. Transaction Code (Instr. 8)		5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5)		6. Date Exercisable and Expiration Date (Month/Day/Year)		7. Title and Amount of Securities Underlying Derivative Security (Instr. 3 and 4)		8. Price of Derivative Security (Instr. 5)	9. Number of derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4)	10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)
				Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares
Restricted Stock Units	(1)	08/13/2026		M			1,201	(2)	(2)	Class A Common Stock	1,201	$0	51,659	D

Explanation of Responses:

1. Each restricted stock unit ("RSU") represents a contingent right to receive one share of the Issuer's Class A Common Stock.

2. On March 13, 2025, the Reporting Person was granted 72,081 RSUs, vesting as to 20% of the underlying shares on March 13, 2026 and continuing to vest thereafter in 48 substantially equal monthly installments. On August 13, 2026, 1,201 RSUs vested.

Remarks:

	/s/ Richard Craig Bealmear, Attorney-in-Fact	08/17/2026
	** Signature of Reporting Person	Date
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* If the form is filed by more than one reporting person, see Instruction 4 (b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.
* Form 4: SEC 1474 (03-26)