Oklo CFO trades shares after option exercise

Oklo Inc. Chief Financial Officer Richard Craig Bealmear reported option exercises and related share sales.

Rhea-AI Filing Summary

Oklo Inc. Chief Financial Officer Richard Craig Bealmear reported option exercises and related share sales. On March 3, 2026 he exercised stock options for 5,839 shares of Class A Common Stock at a price of $3.18 per share, following the exercise of 5,839 stock options with a stated price of $0.00 per option. After these transactions, he held 846,595 stock options and 300,094 shares of Class A Common Stock before a same-day sale.

On the same date, he sold 5,839 shares of Class A Common Stock in an open-market transaction at $61.93 per share, leaving 294,255 Class A Common shares held directly. The sales were effected under a Rule 10b5-1 plan adopted on September 22, 2025, and the relevant stock option began vesting 20% of the underlying shares on August 1, 2024, with the remainder vesting in 48 substantially equal monthly installments.

Insider Trade Summary

Exercise and Sale: 5,839 shares ($343K approx. pre-tax spread)

Exercise and Sale 3 txns

Insider Bealmear Richard Craig

Role Chief Financial Officer

Sold 5,839 shs ($362K)

Approx. gross sale proceeds $362K

Approx. exercise cost $19K

Approx. pre-tax spread $343K

Type	Security	Shares	Price	Value
Exercise	Stock Options	5,839	$0.00	$0.00
Exercise	Class A Common Stock	5,839	$3.18	$19K
Sale	Class A Common Stock	5,839	$61.93	$362K

Holdings After Transaction: Stock Options — 846,595 contracts (Direct); Class A Common Stock — 294,255 shares (Direct)

Footnotes (3)

1. F1. For more information about the equity of the Issuer held by the Reporting Person, please see the Issuer's most recent definitive proxy statement filed with the Securities and Exchange Commission.
2. F2. The sales reported herein were effected pursuant to a Rule 10b5-1 plan adopted on September 22, 2025.
3. F3. The stock option vested as to 20% of the underlying shares on August 1, 2024 and continues to vest thereafter in 48 substantially equal monthly installments.

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Accepted by SEC EDGAR 03/05/2026 - 04:13 PM EST 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).

X

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^*

Bealmear Richard Craig

(Last) (First) (Middle)

C/O OKLO INC.

3190 CORONADO DR.

(Street)

SANTA CLARA CA 95054

(City) (State) (Zip)

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 Financial Officer

3. Date of Earliest Transaction (Month/Day/Year)
03/03/2026

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

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

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

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	03/03/2026		M		5,839	A	$3.18	300,094(1)	D
Class A Common Stock	03/03/2026		S(2)		5,839	D	$61.93	294,255(1)	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
Stock Options	$3.18	03/03/2026		M			5,839	(3)	12/22/2033	Class A Common Stock	5,839	$0	846,595	D

Explanation of Responses:

1. For more information about the equity of the Issuer held by the Reporting Person, please see the Issuer's most recent definitive proxy statement filed with the Securities and Exchange Commission.

2. The sales reported herein were effected pursuant to a Rule 10b5-1 plan adopted on September 22, 2025.

3. The stock option vested as to 20% of the underlying shares on August 1, 2024 and continues to vest thereafter in 48 substantially equal monthly installments.

Remarks:

	/s/ Richard Craig Bealmear	03/05/2026
	** 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.