Oklo CPO sells 1,930 shares at $38.40

Oklo’s Chief Product Officer reported a non-discretionary sell-to-cover stock sale tied to RSU tax withholding, retaining a substantial direct holding afterward.

Rhea-AI Filing Summary

Oklo Inc. (OKLO) disclosed that Chief Product Officer Alexandra Renner reported a sale of 1,930 shares of Class A Common Stock on September 1, 2026 at $38.40 per share. According to the company’s disclosure, the shares were sold under a “sell to cover” arrangement solely to satisfy tax withholding obligations on vesting RSUs and are described as non-discretionary. Following this transaction, Renner directly holds 475,022 shares of Oklo common stock.

Insider Trade Summary

Net Seller: 1,930 shares

Net Sell 1 txn

Insider Renner Alexandra

Role Chief Product Officer

Sold 1,930 shs ($74K)

Type	Security	Shares	Price	Value
Sale	Class A Common Stock F1	1,930	$38.40	$74K

Holdings After Transaction: Class A Common Stock — 475,022 shares (Direct)

Footnotes (1)

1. F1. Represents the number of shares sold by the Reporting Person to cover tax withholding obligations in connection with the vesting and settlement of the RSUs. The sale was to satisfy tax withholding obligations to be funded by a "sell to cover" transaction and does not represent a discretionary transaction by the Reporting Person.

Key Figures

Shares sold: 1,930 shares Sale price per share: $38.40 per share Shares held after transaction: 475,022 shares

3 metrics

Shares sold 1,930 shares Class A Common Stock sold on September 1, 2026

Sale price per share $38.40 per share Price for the 1,930 shares sold on September 1, 2026

Shares held after transaction 475,022 shares Direct holdings of Alexandra Renner following the sell-to-cover

Key Terms

sell to cover, tax withholding obligations, Restricted Stock Units

3 terms

sell to cover financial

"The sale was to satisfy tax withholding obligations to be funded by a "sell to cover" transaction"

Sell to cover is when a person who receives company stock through options or awards sells just enough shares immediately to pay required taxes, exercise costs, or fees, keeping the rest. Think of it like cashing part of a bonus to cover the tax bill so you can keep the remainder. For investors, it can create predictable small selling pressure and slightly change the number of shares actually held by insiders without increasing long‑term dilution.

tax withholding obligations financial

"shares sold by the Reporting Person to cover tax withholding obligations in connection"

Restricted Stock Units financial

"in connection with the vesting and settlement of the RSUs"

Restricted stock units are a type of company reward where employees are promised shares of stock, but they only fully own these shares after meeting certain conditions, like staying with the company for a set time. They matter because they can become valuable assets and are often used to motivate employees to help the company succeed.

FAQ

What did Oklo (OKLO) disclose about Alexandra Renner’s recent stock transaction?

Oklo reported that Chief Product Officer Alexandra Renner sold 1,930 shares of Class A Common Stock on September 1, 2026 at $38.40 per share, in connection with tax withholding on vesting RSUs through a non-discretionary sell-to-cover transaction.

Why were Alexandra Renner’s Oklo (OKLO) shares sold in this Form 4 filing?

The filing states the shares were sold to cover tax withholding obligations arising from the vesting and settlement of RSUs. It specifies the sale was a “sell to cover” transaction and does not represent a discretionary transaction by Alexandra Renner.

How many Oklo (OKLO) shares did Alexandra Renner sell and at what price?

Alexandra Renner reported selling 1,930 shares of Oklo Class A Common Stock at a price of $38.40 per share on September 1, 2026, as disclosed in the Form 4 insider transaction report.

How many Oklo (OKLO) shares does Alexandra Renner hold after this transaction?

After the reported sell-to-cover transaction, Alexandra Renner directly holds 475,022 shares of Oklo Class A Common Stock, according to the Form 4 disclosure.

Was Alexandra Renner’s Oklo (OKLO) stock sale under a Rule 10b5-1 trading plan?

The filing’s Rule 10b5-1 checkbox is not checked, and the footnote describes the sale as a sell-to-cover for tax withholding, stating it does not represent a discretionary transaction, but it does not identify a Rule 10b5-1 trading plan.

What type of Oklo (OKLO) security was involved in Alexandra Renner’s Form 4 sale?

The transaction involved Class A Common Stock of Oklo Inc. The 1,930 shares sold were linked to the vesting and settlement of Restricted Stock Units (RSUs), with the sale executed to cover associated tax withholding obligations.

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Available on EDGAR 09/03/2026 - 04:31 PM Accepted by SEC EDGAR 09/03/2026 - 04:23 PM Learn about SEC filing dates

SEC Form 4

FORM 4

UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940

OMB APPROVAL

OMB Number:			3235-0287
Estimated average burden
hours per response:			0.5

Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

Check this box to indicate that a transaction was made pursuant to a contract, instruction or written plan for the purchase or sale of equity securities of the issuer that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). See Instruction 10.

1. Name and Address of Reporting Person^*

Renner Alexandra

(Last) (First) (Middle)

C/O OKLO INC.

3190 CORONADO DRIVE

(Street)

SANTA CLARA CALIFORNIA 95054

(City) (State) (Zip)

UNITED STATES

(Country)

2. Issuer Name and Ticker or Trading Symbol
Oklo Inc. [ OKLO ]

5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)

	Director		10% Owner
X	Officer (give title below)		Other (specify below)
	Chief Product Officer

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
09/01/2026

6. Individual or Joint/Group Filing (Check Applicable Line)

X	Form filed by One Reporting Person
	Form filed by More than One Reporting Person

4. If Amendment, Date of Original Filed (Month/Day/Year)

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	3. Transaction Code (Instr. 8)		4. Securities Acquired (A) or Disposed Of (D) (Instr. 3, 4 and 5)			5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4)	6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
			Code	V	Amount	(A) or (D)	Price
Class A Common Stock	09/01/2026		S(1)		1,930	D	$38.4	475,022	D

Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 3)	2. Conversion or Exercise Price of Derivative Security	3. Transaction Date (Month/Day/Year)	3A. Deemed Execution Date, if any (Month/Day/Year)	4. Transaction Code (Instr. 8)		5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5)		6. Date Exercisable and Expiration Date (Month/Day/Year)		7. Title and Amount of Securities Underlying Derivative Security (Instr. 3 and 4)		8. Price of Derivative Security (Instr. 5)	9. Number of derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4)	10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)
				Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares

Explanation of Responses:

1. Represents the number of shares sold by the Reporting Person to cover tax withholding obligations in connection with the vesting and settlement of the RSUs. The sale was to satisfy tax withholding obligations to be funded by a "sell to cover" transaction and does not represent a discretionary transaction by the Reporting Person.

Remarks:

	/s/ Richard Craig Bealmear, Attorney-in-Fact	09/03/2026
	** Signature of Reporting Person	Date
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* If the form is filed by more than one reporting person, see Instruction 4 (b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.
* Form 4: SEC 1474 (03-26)