Oklo (OKLO) insider William Goodwin files Form 144 to sell 5,864 shares

Rhea-AI Filing Summary

Oklo Inc. insider William Goodwin has filed a notice to sell Class A shares under Rule 144. The filing covers 5,864 Class A shares to be sold through Fidelity Brokerage Services on the NYSE, with an aggregate market value of $518,517.75 and 156,247,075 Class A shares outstanding. These shares were acquired from the issuer on 11/28/2025 via restricted stock vesting as compensation.

Over the prior three months, William Goodwin reported additional Class A share sales, including 41,387 shares on 09/05/2025 for gross proceeds of $2,900,900.87 and 11,936 shares on 11/19/2025 for gross proceeds of $1,215,541.95. By signing the notice, the seller represents that he is not aware of any material adverse, nonpublic information about Oklo’s current or prospective operations.

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

144: Issuer Information

Name of Issuer

SEC File Number

Address of Issuer

Phone

Name of Person for Whose Account the Securities are To Be Sold

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

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	5864	518517.75	156247075	12/01/2025	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	11/28/2025	Restricted Stock Vesting	Issuer			5864	11/28/2025	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
William Goodwin 3190 Coronado Dr. Santa Clara CA 95054	Class A	09/05/2025	41387	2900900.87
William Goodwin 3190 Coronado Dr. Santa Clara CA 95054	Class A	11/19/2025	11936	1215541.95

144: Remarks and Signature

Remarks

Date of Notice

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

ATTENTION: Intentional misstatements or omission of facts constitute Federal Criminal Violations (See 18 U.S.C. 1001)

FAQ

What does the Oklo (OKLO) Form 144 filing disclose?

The Form 144 filing discloses that William Goodwin plans to sell 5,864 Class A shares of Oklo Inc. through Fidelity Brokerage Services on the NYSE, with an aggregate market value of $518,517.75. The notice is required for certain sales of restricted or control securities under Rule 144.

How many Oklo (OKLO) shares is the insider planning to sell and when?

The filing states that 5,864 Class A shares of Oklo Inc. are to be sold, with an approximate date of sale of 12/01/2025. These shares are listed for sale on the NYSE through Fidelity Brokerage Services.

How were the Oklo (OKLO) shares in this Form 144 acquired?

The 5,864 Class A shares covered by the notice were acquired on 11/28/2025 from the issuer via restricted stock vesting, and the nature of payment is listed as compensation.

What prior Oklo (OKLO) share sales by this insider are disclosed?

The notice lists prior sales in the last three months by William Goodwin: 41,387 Class A shares sold on 09/05/2025 for $2,900,900.87 in gross proceeds and 11,936 Class A shares sold on 11/19/2025 for $1,215,541.95 in gross proceeds.

How many Oklo (OKLO) Class A shares are outstanding according to the Form 144?

The Form 144 indicates that the number of Class A shares outstanding is 156,247,075. This figure provides context for the size of the planned sale relative to the total Class A shares.

What representation does the seller make in the Oklo (OKLO) Form 144 notice?

By signing the notice, the person for whose account the securities are to be sold represents that they do not know any material adverse information about Oklo’s current or prospective operations that has not been publicly disclosed, consistent with Rule 144 requirements.