Oklo holder plans sale of 223 Class A shares

Oklo Inc. (OKLO) is the issuer for a planned sale of its Class A common stock under Rule 144 by stockholder Vivek Narayanadas.

Rhea-AI Filing Summary

Oklo Inc. (OKLO) is the issuer for a planned sale of its Class A common stock under Rule 144 by stockholder Vivek Narayanadas. The notice covers a proposed sale of 223 Class A shares, to be received through restricted stock vesting from the issuer on 08/21/2026, with Fidelity Brokerage Services LLC as broker. The filing also lists prior sales of Class A shares by the same holder during the preceding three months, reported in compliance with Rule 144.

Key Figures

Planned shares to be sold: 223 Class A shares Shares sold on 06/08/2026: 536 Class A shares; $31,285.84 Shares sold on 06/09/2026: 239 Class A shares; $14,000.62 +4 more

7 metrics

Planned shares to be sold 223 Class A shares Class A common stock to be sold under Rule 144 from restricted stock vesting on 08/21/2026

Shares sold on 06/08/2026 536 Class A shares; $31,285.84 Sale of Oklo Class A shares by Vivek Narayanadas during past 3 months

Shares sold on 06/09/2026 239 Class A shares; $14,000.62 Sale of Oklo Class A shares by Vivek Narayanadas during past 3 months

Shares sold on 07/17/2026 935 Class A shares; $38,877.49 Sale of Oklo Class A shares by Vivek Narayanadas during past 3 months

Shares sold on 07/20/2026 411 Class A shares; $16,941.42 Sale of Oklo Class A shares by Vivek Narayanadas during past 3 months

Shares sold on 08/24/2026 3,264 Class A shares; $129,810.91 Sale of Oklo Class A shares by Vivek Narayanadas during past 3 months

Rule 144 issuer file number 001-40583 SEC file number for Oklo Inc. as issuer of the securities

Key Terms

Rule 144, restricted stock vesting, 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.

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 Vivek Narayanadas"

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 is Oklo Inc. (OKLO) reporting in this Form 144?

The filing reports a planned Rule 144 sale of 223 Class A shares of Oklo Inc. common stock by stockholder Vivek Narayanadas, arising from restricted stock vesting on 08/21/2026, with Fidelity Brokerage Services LLC acting as broker.

How many Oklo (OKLO) shares are proposed to be sold under this notice?

The notice covers a proposed sale of 223 Class A shares of Oklo Inc. common stock. These shares are expected to come from restricted stock vesting on 08/21/2026, and the sale would be executed through Fidelity Brokerage Services LLC.

What prior Oklo (OKLO) share sales by Vivek Narayanadas are disclosed?

Disclosed past 3‑month sales of Oklo Class A shares include: 536 shares on 06/08/2026, 239 shares on 06/09/2026, 935 shares on 07/17/2026, 411 shares on 07/20/2026, and 3,264 shares on 08/24/2026.

What was the approximate dollar value of Oklo (OKLO) shares sold recently by this holder?

Reported aggregate values for recent Oklo Class A sales are $31,285.84 on 06/08/2026, $14,000.62 on 06/09/2026, $38,877.49 on 07/17/2026, $16,941.42 on 07/20/2026, and $129,810.91 on 08/24/2026.

Who is executing the Oklo (OKLO) Rule 144 sale and who signed the notice?

The planned sale is to be executed through Fidelity Brokerage Services LLC. The notice is signed by /s/ Daniel Tucci, acting as a duly authorized representative of Fidelity Brokerage Services LLC and as attorney-in-fact for Vivek Narayanadas.

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

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Available on EDGAR 08/25/2026 - 09:42 AM EDT Accepted by SEC EDGAR 08/25/2026 - 09:41 AM 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	0002146790
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	Narayanadas Vivek
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	223	9098.40	186017650	08/25/2026	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			223	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
Vivek Narayanadas 3190 Coronado Dr. Santa Clara CA 95054	Class A	06/08/2026	536	31285.84
Vivek Narayanadas 3190 Coronado Dr. Santa Clara CA 95054	Class A	06/09/2026	239	14000.62
Vivek Narayanadas 3190 Coronado Dr. Santa Clara CA 95054	Class A	07/17/2026	935	38877.49
Vivek Narayanadas 3190 Coronado Dr. Santa Clara CA 95054	Class A	07/20/2026	411	16941.42
Vivek Narayanadas 3190 Coronado Dr. Santa Clara CA 95054	Class A	08/24/2026	3264	129810.91

144: Remarks and Signature

Remarks
Date of Notice	08/25/2026
Date of Plan Adoption or Giving of Instruction, If Relying on Rule 10b5-1	04/02/2026
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/ Daniel Tucci, as a duly authorized representative of Fidelity Brokerage Services LLC, as attorney-in-fact for Vivek Narayanadas
ATTENTION: Intentional misstatements or omission of facts constitute Federal Criminal Violations (See 18 U.S.C. 1001)