Oklo insiders plan sale of 400,000 Class A shares

Oklo, Inc. insiders filed a notice of proposed sales of Class A common stock under Rule 144.

Rhea-AI Filing Summary

Oklo, Inc. insiders filed a notice of proposed sales of Class A common stock under Rule 144. The filing indicates that up to 400,000 shares may be sold through J.P. Morgan Securities LLC on the NYSE, with an intended sale date of August 3, 2026.

The securities section shows that these shares trace back to founder shares originally acquired by Caroline Cochran on December 31, 2013, including a later transfer dated March 28, 2025. The filing also lists recent open-market sales of Oklo Class A common stock during the past three months by Jacob DeWitte, Caroline Cochran, and related Grantor Annuity Trust #1 entities, with multiple transactions of 60,000 and 40,000 shares on June 1, 2026 and July 1, 2026.

Key Figures

Proposed shares to be sold: 400,000 shares Intended sale date: 08/03/2026 Founder shares acquired: 240,000 shares +3 more

6 metrics

Proposed shares to be sold 400,000 shares Class A common stock under Rule 144 through J.P. Morgan Securities LLC

Intended sale date 08/03/2026 Planned date for the proposed Rule 144 sale on the NYSE

Founder shares acquired 240,000 shares Founder shares acquired by Caroline Cochran on 12/31/2013

Transfer related to founder shares 160,000 shares Transfer from Caroline Cochran dated 03/28/2025 in the securities to be sold section

Recent sale size per insider 60,000 shares Individual transactions on 06/01/2026 and 07/01/2026 by Jacob DeWitte and Caroline Cochran

Recent sale size per trust 40,000 shares Grantor Annuity Trust #1 transactions on 06/01/2026 and 07/01/2026

Key Terms

Form 144, Rule 144, Founder shares, Grantor Annuity Trust, +1 more

5 terms

Form 144 regulatory

"Filer Information | | | 144: Filer Information"

Form 144 is a document that investors must file with the government when they plan to sell a large number of shares of a company's stock. It helps ensure transparency so everyone knows how many shares are being sold and when, which can impact the stock's price.

Rule 144 regulatory

"144: Securities Information Class A Common Stock"

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.

Founder shares financial

"Founder Shares | Issuer | | | 240000 | 12/31/2013"

Founder shares are the ownership stakes given to the people who start a company, often with extra voting power or protections compared with ordinary shares. For investors, they matter because founders’ control and incentives influence decisions about strategy, hiring, and whether the company sells or stays independent — like a family that keeps majority voting rights in a household decision. High founder ownership can mean stable leadership but also a risk that outside shareholders have less influence.

Grantor Annuity Trust financial

"Jacob DeWitte Grantor Annuity Trust #1 C/o Oklo, Inc."

Class A Common Stock financial

"Class A Common Stock | J.P. Morgan Securities LLC"

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.

FAQ

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

What does the Form 144 filed for OKLO indicate about upcoming stock sales?

The Form 144 for OKLO indicates a proposed sale of up to 400,000 shares of Class A common stock through J.P. Morgan Securities LLC on the NYSE, with an intended sale date of August 3, 2026.

How many Oklo (OKLO) shares are covered by the proposed Rule 144 sale?

The notice covers a proposed sale of up to 400,000 shares of Oklo Class A common stock. These shares are to be sold through J.P. Morgan Securities LLC on the NYSE, according to the Form 144 disclosure.

Who originally acquired the founder shares referenced in the OKLO Form 144?

The founder shares referenced were acquired by Caroline Cochran on December 31, 2013. The filing also notes a later transfer dated March 28, 2025, linking these founder shares to the currently proposed Rule 144 sale.

What recent sales of Oklo (OKLO) stock are disclosed in the past three months section?

The filing lists multiple recent sales of Oklo Class A common stock, including transactions of 60,000 shares and 40,000 shares on June 1, 2026 and July 1, 2026 by Jacob DeWitte, Caroline Cochran, and related Grantor Annuity Trust #1 entities.

Through which broker-dealer will the proposed OKLO Form 144 sales be executed?

The proposed sales of Oklo Class A common stock are to be executed through J.P. Morgan Securities LLC, located at 270 Park Avenue, New York, NY, with the shares listed on the NYSE.

What is the relationship between the Grantor Annuity Trusts and OKLO stock in this Form 144?

The Form 144 shows that Grantor Annuity Trust #1 entities associated with Jacob DeWitte and Caroline Cochran each conducted transactions of 40,000 shares on both June 1, 2026 and July 1, 2026 in Oklo Class A common stock.

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

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Available on EDGAR 08/03/2026 - 05:00 PM Accepted by SEC EDGAR 08/03/2026 - 04:59 PM 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	0002021786
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 Drive Santa Clara CALIFORNIA 95054
Phone	650-550-0127
Name of Person for Whose Account the Securities are To Be Sold	Caroline Cochran
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	COO / Director / 10% Shareholder

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 Common Stock	J.P. Morgan Securities LLC 270 Park Avenue, 10h Floor New York NY 10017	400000	15532000	173990987	08/03/2026	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 Common Stock	03/28/2025	Transfer	From Caroline Cochran, who acquired the Founder shares on 12/31/13			160000	03/28/2025	N/A
Class A Common Stock	12/31/2013	Founder Shares	Issuer			240000	12/31/2013	N/A

* 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
Jacob DeWitte C/o Oklo, Inc. 3190 Coronado Drive Santa Clara CA 95054	Class A Common Stock	06/01/2026	60000	4097154
Jacob DeWitte C/o Oklo, Inc. 3190 Coronado Drive Santa Clara CA 95054	Class A Common Stock	07/01/2026	60000	3175727
Jacob DeWitte Grantor Annuity Trust #1 C/o Oklo, Inc. 3190 Coronado Drive Santa Clara CA 95054	Class A Common Stock	06/01/2026	40000	2731436
Jacob DeWitte Grantor Annuity Trust #1 C/o Oklo, Inc. 3190 Coronado Drive Santa Clara CA 95054	Class A Common Stock	07/01/2026	40000	2117151
Caroline Cochran C/o Oklo, Inc. 3190 Coronado Drive Santa Clara CA 95054	Class A Common Stock	06/01/2026	60000	4097154
Caroline Cochran C/o Oklo, Inc. 3190 Coronado Drive Santa Clara CA 95054	Class A Common Stock	07/01/2026	60000	3175727
Caroline Cochran Grantor Annuity Trust #1 C/o Oklo, Inc. 3190 Coronado Drive Santa Clara CA 95054	Class A Common Stock	06/01/2026	40000	2731436
Caroline Cochran Grantor Annuity Trust #1 C/o Oklo, Inc. 3190 Coronado Drive Santa Clara CA 95054	Class A Common Stock	07/01/2026	40000	2117151

144: Remarks and Signature

Remarks	The shares filed today will be sold by Caroline Cochran and the Caroline Cochran Grantor Retained Annuity Trust No. 1, Caroline Cochran as Trustee.
Date of Notice	08/03/2026
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/ J.P. Morgan Securities LLC as agent and attorney-in-fact for Caroline Cochran
ATTENTION: Intentional misstatements or omission of facts constitute Federal Criminal Violations (See 18 U.S.C. 1001)