Oklo insider plans sale of 16,430 shares Sept. 1

Oklo Inc. (OKLO) is the issuer for a Rule 144 notice filed on behalf of Richard C. Bealmear.

Rhea-AI Filing Summary

Oklo Inc. (OKLO) is the issuer for a Rule 144 notice filed on behalf of Richard C. Bealmear. The notice covers a proposed sale of 16,430 Class A shares, to be acquired through a stock option exercise and sold for cash on September 1, 2026. The filing also lists prior sales by Bealmear over the past three months, showing multiple Class A share dispositions with significant aggregate dollar values.

Key Figures

Shares to be sold: 16,430 Class A shares Aggregate market value of proposed sale: $636,795.53 Shares outstanding: 186,017,650 Class A shares +5 more

8 metrics

Shares to be sold 16,430 Class A shares Proposed Rule 144 sale on September 1, 2026 after stock option exercise

Aggregate market value of proposed sale $636,795.53 Value of 16,430 Class A shares covered by the Rule 144 notice

Shares outstanding 186,017,650 Class A shares Reported number of Oklo Inc. shares outstanding

Shares sold June 1, 2026 73,081 Class A shares Prior sale by Richard C. Bealmear

Proceeds June 1, 2026 sale $5,000,236.58 Value of 73,081 Class A shares sold

Shares sold July 1, 2026 16,321 Class A shares Prior sale by Richard C. Bealmear

Proceeds July 1, 2026 sale $875,295.23 Value of 16,321 Class A shares sold

Shares sold August 3, 2026 16,452 Class A shares Prior sale by Richard C. Bealmear

Key Terms

Rule 144, Stock Option Exercise, attorney-in-fact

3 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.

Stock Option Exercise financial

"Class A | 09/01/2026 | Stock Option Exercise | Issuer"

A stock option exercise is the act of using a previously granted right to buy shares of a company's stock at a specific, predetermined price by paying that price and receiving the shares. It matters to investors because exercising changes who owns the shares (which can dilute existing ownership), can trigger taxable events and shift potential gains or losses, and affects voting power and the company’s outstanding share count—like turning a voucher into an actual product that becomes part of circulating supply.

attorney-in-fact regulatory

"as attorney-in-fact for Richard Bealmear"

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.

FAQ

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

What does the Form 144 filing disclose for OKLO?

It discloses that Richard C. Bealmear has filed a Rule 144 notice to sell 16,430 Class A shares of Oklo Inc., to be acquired via a stock option exercise and sold for cash on September 1, 2026, along with prior sales in the last three months.

How many OKLO shares are proposed to be sold under this Form 144?

The notice covers a proposed sale of 16,430 Class A shares of Oklo Inc., expected to be sold for cash on September 1, 2026 after a stock option exercise.

What is the aggregate value of the OKLO shares in the proposed Rule 144 sale?

The proposed sale of 16,430 Class A shares has an aggregate market value of approximately $636,795.53, based on the information provided in the Form 144 notice.

How many Oklo Inc. shares has Richard C. Bealmear sold in the past three months?

The notice lists prior sales of 73,081 shares on June 1, 2026, 16,321 shares on July 1, 2026, and 16,452 shares on August 3, 2026, all Class A shares of Oklo Inc.

What are the dollar amounts of Richard C. Bealmear’s recent OKLO share sales?

Reported sales include about $5,000,236.58 on June 1, 2026, $875,295.23 on July 1, 2026, and $638,337.60 on August 3, 2026, all from dispositions of Oklo Inc. Class A shares.

What is the reported number of Oklo Inc. shares outstanding in this Form 144?

The filing reports 186,017,650 Class A shares of Oklo Inc. outstanding, providing a reference for the relative size of the proposed sale under Rule 144.

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

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Available on EDGAR 09/01/2026 - 01:07 PM EDT Accepted by SEC EDGAR 09/01/2026 - 01:07 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	0001855623
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	Bealmear Richard Craig
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	16430	636795.53	186017650	09/01/2026	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	09/01/2026	Stock Option Exercise	Issuer			16430	09/01/2026	Cash

* 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
Richard C. Bealmear 3190 Coronado Dr. Santa Clara CA 95054	Class A	06/01/2026	73081	5000236.58
Richard C. Bealmear 3190 Coronado Dr. Santa Clara CA 95054	Class A	07/01/2026	16321	875295.23
Richard C. Bealmear 3190 Coronado Dr. Santa Clara CA 95054	Class A	08/03/2026	16452	638337.60

144: Remarks and Signature

Remarks
Date of Notice	09/01/2026
Date of Plan Adoption or Giving of Instruction, If Relying on Rule 10b5-1	09/22/2025
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/ Daniel Tucci, as a duly authorized representative of Fidelity Brokerage Services LLC, as attorney-in-fact for Richard Bealmear
ATTENTION: Intentional misstatements or omission of facts constitute Federal Criminal Violations (See 18 U.S.C. 1001)