Oklo holder Alexandra Renner may sell 557 shares

Oklo Inc. (OKLO) received a Form 144 notice indicating that Alexandra P. Renner may sell 557 Class A shares of Oklo common stock through Fidelity Brokerage Services LLC on the NYSE.

Rhea-AI Filing Summary

Oklo Inc. (OKLO) received a Form 144 notice indicating that Alexandra P. Renner may sell 557 Class A shares of Oklo common stock through Fidelity Brokerage Services LLC on the NYSE. The shares relate to restricted stock vesting on 08/21/2026 and are categorized as compensation. The notice states the sale includes an amount necessary to cover a tax obligation from settlement of a vested equity award. Over the prior three months, Renner sold 501 shares on 06/15/2026 for $30,282.24 and 1,195 shares on 07/17/2026 for $49,688.34. The form reports 186,017,650 Oklo Class A shares outstanding.

Key Figures

Shares to be sold: 557 shares of Class A Aggregate market value of securities to be sold: $22,152.17 Shares outstanding: 186,017,650 Class A shares +3 more

6 metrics

Shares to be sold 557 shares of Class A Potential sale reported for Alexandra P. Renner under Form 144

Aggregate market value of securities to be sold $22,152.17 Reported for the 557 Class A shares in the Form 144

Shares outstanding 186,017,650 Class A shares Total Oklo Inc. Class A shares outstanding as reported in the notice

Prior sale on 06/15/2026 501 shares for $30,282.24 Securities sold by Alexandra P. Renner during the past 3 months

Prior sale on 07/17/2026 1,195 shares for $49,688.34 Securities sold by Alexandra P. Renner during the past 3 months

Date of notice 08/24/2026 Filing date of the Form 144 notice of proposed sale

Key Terms

Rule 144, Restricted Stock Vesting, attorney-in-fact, compensation

4 terms

Rule 144 regulatory

"See the definition of "person" in paragraph (a) of Rule 144."

Rule 144 is a U.S. securities regulation that sets conditions under which restricted or insider-held shares can be legally resold to the public, such as required holding periods, availability of public information, limits on how much can be sold at once, and certain filing requirements. For investors it matters because it determines when previously locked-up shares can enter the market — like a release valve that can increase supply, affect share price, and signal insider intent.

Restricted Stock Vesting financial

"Class A | 08/21/2026 | Restricted Stock Vesting | Issuer"

Restricted stock vesting is the timetable and conditions under which shares granted to employees or insiders become fully owned and can be sold, typically requiring continued work or meeting performance goals. It matters to investors because large blocks of shares can become tradable at once, which can change share supply and price, and because vesting aligns insiders’ incentives with the company’s long‑term performance—think of it like a timed unlock that both rewards and locks in key people.

attorney-in-fact regulatory

"as attorney-in-fact for Alexandra P. Renner."

An attorney-in-fact is the person or entity given legal authority through a power of attorney to act on behalf of another for specific tasks, such as signing documents, voting shares, or handling transactions. For investors, this matters because it lets a trusted representative make timely decisions or complete paperwork when the owner cannot, much like handing keys to someone to run errands on your behalf—so checks on scope and limits of that authority are important.

compensation financial

"557 | 08/21/2026 | Compensation"

FAQ

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

What does the latest Form 144 filing for OKLO disclose?

The Form 144 relates to Alexandra P. Renner’s potential sale of 557 Class A shares of Oklo Inc. common stock, associated with restricted stock vesting on 08/21/2026, to be sold through Fidelity Brokerage Services LLC on the NYSE.

How many OKLO shares is Alexandra P. Renner planning to sell under this Form 144?

Alexandra P. Renner filed to potentially sell 557 Class A shares of Oklo Inc. common stock. The filing lists these shares as compensation-related, tied to restricted stock vesting on 08/21/2026.

What OKLO share sales has Alexandra P. Renner made in the past three months?

In the past three months, Alexandra P. Renner sold 501 shares on 06/15/2026 for $30,282.24 and 1,195 shares on 07/17/2026 for $49,688.34, according to the Form 144 disclosure.

What is the nature of the OKLO securities being sold in this Form 144?

The Form 144 states the 557 Class A shares to be sold are tied to Restricted Stock Vesting dated 08/21/2026 and are categorized under "Compensation," reflecting settlement of a vested equity award.

How many Oklo Inc. Class A shares are outstanding as reported in this Form 144?

The Form 144 reports that there are 186,017,650 Oklo Inc. Class A shares outstanding. This is a context figure for the issuer’s total Class A equity, separate from the 557 shares covered by the notice.

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

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Available on EDGAR 08/24/2026 - 03:15 PM EDT Accepted by SEC EDGAR 08/24/2026 - 03:14 PM EDT Learn about SEC filing dates

Form 144 Filer Information	UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 144 NOTICE OF PROPOSED SALE OF SECURITIES PURSUANT TO RULE 144 UNDER THE SECURITIES ACT OF 1933
FORM 144

144: Filer Information

Filer CIK	0002147680
Filer CCC	XXXXXXXX
Is this a LIVE or TEST Filing?	LIVE TEST
Submission Contact Information
Name
Phone
E-Mail Address

144: Issuer Information

Name of Issuer	Oklo Inc.
SEC File Number	001-40583
Address of Issuer	3190 CORONADO DR. SANTA CLARA CALIFORNIA 95054
Phone	650-550-0127
Name of Person for Whose Account the Securities are To Be Sold	Renner Alexandra
See the definition of "person" in paragraph (a) of Rule 144. Information is to be given not only as to the person for whose account the securities are to be sold but also as to all other persons included in that definition. In addition, information shall be given as to sales by all persons whose sales are required by paragraph (e) of Rule 144 to be aggregated with sales for the account of the person filing this notice.
Relationship to Issuer	Officer

144: Securities Information

Title of the Class of Securities To Be Sold	Name and Address of the Broker	Number of Shares or Other Units To Be Sold	Aggregate Market Value	Number of Shares or Other Units Outstanding	Approximate Date of Sale	Name the Securities Exchange
Class A	Fidelity Brokerage Services LLC 900 Salem Street Smithfield RI 02917	557	22152.17	186017650	08/24/2026	NYSE

Furnish the following information with respect to the acquisition of the securities to be sold and with respect to the payment of all or any part of the purchase price or other consideration therefor:

144: Securities To Be Sold

Title of the Class	Date you Acquired	Nature of Acquisition Transaction	Name of Person from Whom Acquired	Is this a Gift?	Date Donor Acquired	Amount of Securities Acquired	Date of Payment	Nature of Payment *
Class A	08/21/2026	Restricted Stock Vesting	Issuer			557	08/21/2026	Compensation

* If the securities were purchased and full payment therefor was not made in cash at the time of purchase, explain in the table or in a note thereto the nature of the consideration given. If the consideration consisted of any note or other obligation, or if payment was made in installments describe the arrangement and state when the note or other obligation was discharged in full or the last installment paid.

Furnish the following information as to all securities of the issuer sold during the past 3 months by the person for whose account the securities are to be sold.

144: Securities Sold During The Past 3 Months

Name and Address of Seller	Title of Securities Sold	Date of Sale	Amount of Securities Sold	Gross Proceeds
Alexandra P. Renner 3190 Coronado Dr. Santa Clara CA 95054	Class A	06/15/2026	501	30282.24
Alexandra P. Renner 3190 Coronado Dr. Santa Clara CA 95054	Class A	07/17/2026	1195	49688.34

144: Remarks and Signature

Remarks	Sale includes an amount necessary to cover a tax obligation resulting from the settlement of a vested equity award distribution.
Date of Notice	08/24/2026
ATTENTION:
The person for whose account the securities to which this notice relates are to be sold hereby represents by signing this notice that he does not know any material adverse information in regard to the current and prospective operations of the Issuer of the securities to be sold which has not been publicly disclosed. If such person has adopted a written trading plan or given trading instructions to satisfy Rule 10b5-1 under the Exchange Act, by signing the form and indicating the date that the plan was adopted or the instruction given, that person makes such representation as of the plan adoption or instruction date.
Signature	/s/ Joshua Schmitt, as a duly authorized representative of Fidelity Brokerage Services LLC, as attorney-in-fact for Alexandra P. Renner.
ATTENTION: Intentional misstatements or omission of facts constitute Federal Criminal Violations (See 18 U.S.C. 1001)