Oklo insiders plan Rule 144 sale of 400,000 shares

Oklo, Inc. insiders filed to sell Class A Common Stock under Rule 144.

Rhea-AI Filing Summary

Oklo, Inc. insiders filed to sell Class A Common Stock under Rule 144. The filing lists J.P. Morgan Securities LLC as broker and covers 400,000 shares of Class A Common Stock with an aggregate market value of $15,532,000, with an anticipated sale date on or after August 3, 2026.

The securities include founder shares originally acquired by Jacob DeWitte on December 31, 2013, part of which were transferred on March 27, 2025. The filing also reports sales during the past three months by Jacob DeWitte, Caroline Cochran, and their respective Grantor Annuity Trusts, each executing multiple transactions in June and July 2026 involving blocks of 40,000 or 60,000 shares of Class A Common Stock.

Key Figures

Shares to be sold: 400,000 shares Aggregate market value of planned sale: $15,532,000 Approximate sale date: 08/03/2026 +4 more

7 metrics

Shares to be sold 400,000 shares Class A Common Stock covered by the Rule 144 notice

Aggregate market value of planned sale $15,532,000 Market value of 400,000 shares of Class A Common Stock

Approximate sale date 08/03/2026 Anticipated date for the Rule 144 sale

DeWitte sale 06/01/2026 60,000 shares; $4,097,154 Class A Common Stock sold by Jacob DeWitte

DeWitte sale 07/01/2026 60,000 shares; $3,175,727 Class A Common Stock sold by Jacob DeWitte

Cochran sale 06/01/2026 60,000 shares; $4,097,154 Class A Common Stock sold by Caroline Cochran

Cochran sale 07/01/2026 60,000 shares; $3,175,727 Class A Common Stock sold by Caroline Cochran

Key Terms

Rule 144, Class A Common Stock, Founder shares, Grantor Annuity Trust, +1 more

5 terms

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.

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.

Founder shares financial

"Founder shares on 12/31/13"

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"

Transfer financial

"03/27/2025 | Transfer | From Jacob DeWitte"

FAQ

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

What does Oklo (OKLO) report in this Rule 144 filing?

The filing reports a planned sale of 400,000 shares of Oklo Class A Common Stock under Rule 144, with an aggregate market value of $15,532,000, using J.P. Morgan Securities LLC as broker.

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

The Rule 144 notice covers 400,000 shares of Oklo Class A Common Stock, with an aggregate market value of $15,532,000, and an expected sale date on or after August 3, 2026.

Which insiders are associated with the Oklo (OKLO) Rule 144 filing?

The filing references founder shares acquired by Jacob DeWitte and shows recent sales by Jacob DeWitte, Caroline Cochran, and their Grantor Annuity Trust #1 entities, all involving Class A Common Stock.

What recent Oklo (OKLO) stock sales are disclosed for Jacob DeWitte?

Jacob DeWitte is shown selling 60,000 shares of Class A Common Stock on June 1, 2026 for $4,097,154 and another 60,000 shares on July 1, 2026 for $3,175,727, in addition to sales by his Grantor Annuity Trust.

What recent Oklo (OKLO) stock sales are disclosed for Caroline Cochran?

Caroline Cochran is reported selling 60,000 shares of Class A Common Stock on June 1, 2026 for $4,097,154 and another 60,000 shares on July 1, 2026 for $3,175,727, along with additional sales through her Grantor Annuity Trust.

When were Oklo (OKLO) founder shares originally acquired according to this filing?

The filing notes that founder shares of Oklo Class A Common Stock were acquired by Jacob DeWitte on December 31, 2013, and a portion was later transferred on March 27, 2025.

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

See more from StockTitan in Google Search and AI answers. Adds StockTitan as a preferred source · opens Google

Add on Google Not now

Available on EDGAR 08/03/2026 - 05:02 PM Accepted by SEC EDGAR 08/03/2026 - 05:02 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	0002021433
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	Jacob DeWitte
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	CEO / 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	03/27/2025	Transfer	From Jacob DeWitte, who acquired the Founder shares on 12/31/13			160000	03/27/2025	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 Jacob DeWitte & the Jacob DeWitte Grantor Retained Annuity Trust No. 1, Jacob DeWitte 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 Jacob DeWitte
ATTENTION: Intentional misstatements or omission of facts constitute Federal Criminal Violations (See 18 U.S.C. 1001)