Oklo CFO sells 16,477 shares after option exercise

Q: How many OKLO shares did CFO Richard Craig Bealmear sell?

Richard Craig Bealmear sold 16,477 shares on October 1, 2026, at $36.87 per share. The sale was made under a Rule 10b5-1 plan adopted September 22, 2025.

Q: How many stock options did the Oklo CFO exercise?

Richard Craig Bealmear exercised options to acquire 16,477 shares on October 1, 2026, and another 5,619 shares on October 2, 2026. The exercise price was $3.18 per share for each transaction.

The October 1 sale was made under a Rule 10b5-1 plan adopted September 22, 2025, while the reported options vest in monthly installments.

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Rhea-AI Filing Summary

Oklo Inc. Chief Financial Officer Richard Craig Bealmear exercised stock options to acquire 16,477 shares on October 1, 2026, at a $3.18 exercise price, then sold those shares that day at $36.87 per share. The sale was made under a Rule 10b5-1 plan adopted September 22, 2025. On October 2, he exercised options to acquire another 5,619 shares at $3.18 per share. The options expire December 22, 2033; the reported vesting schedule provides for 20% of the underlying shares to vest on August 1, 2024, with continued vesting in 48 substantially equal monthly installments.

Insider Trade Summary 10b5-1

Exercise and sale activity reported; no spread calculated

Exercise and Sale 5 txns

Insider Bealmear Richard Craig

Role Chief Financial Officer

Sold 16,477 shs ($608K)

Approx. gross sale proceeds $608K

Approx. exercise cost $70K

Type	Security	Shares	Price	Value
Exercise	Stock Options ^F3	5,619	$0.00	$0.00
Exercise	Class A Common Stock ^F1	5,619	$3.18	$18K
Exercise	Stock Options ^F3	16,477	$0.00	$0.00
Exercise	Class A Common Stock ^F1	16,477	$3.18	$52K
Sale	Class A Common Stock ^{F2, F1}	16,477	$36.87	$608K

Holdings After Transaction: Stock Options — 591,923 contracts (Direct); Class A Common Stock — 467,261 shares (Direct)

Footnotes (3)

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.
F2. This sale reported herein was effected pursuant to a Rule 10b5-1 plan adopted on September 22, 2025.
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.

Key Figures

Stock options exercised: 16,477 options Class A shares sold: 16,477 shares Sale price: $36.87 per share +2 more

5 metrics

Stock options exercised 16,477 options October 1, 2026

Class A shares sold 16,477 shares October 1, 2026

Sale price $36.87 per share October 1, 2026

Exercise price $3.18 per share Options exercised October 1 and October 2, 2026

Stock options exercised 5,619 options October 2, 2026

Key Terms

Rule 10b5-1 plan, exercise price, vesting

3 terms

Rule 10b5-1 plan regulatory

"sale was effected pursuant to a Rule 10b5-1 plan"

A Rule 10b5-1 plan is a prearranged, written schedule that lets corporate insiders buy or sell company stock at set times or amounts, even if they later learn material nonpublic information. Think of it like setting an automatic thermostat for trades: it creates a clear record that trades were planned in advance, reducing the risk of insider-trading accusations and helping investors trust that insider transactions are routine rather than based on secret information.

exercise price financial

"conversion_or_exercise_price"

The exercise price is the fixed amount at which you can buy or sell an asset, like a stock, when using an options contract. It matters because it helps determine whether exercising the option will be profitable or not, depending on the current market price. Think of it as the set price you agree on today to buy or sell later.

vesting financial

"continues to vest thereafter in 48 substantially equal monthly installments"

Vesting is the process by which you earn full ownership of something, like company stock or a retirement benefit, over time. It’s like earning the right to keep a gift piece by piece the longer you stay with a company, making sure employees stay committed before they receive all the benefits.

FAQ

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

How many OKLO shares did CFO Richard Craig Bealmear sell?

Richard Craig Bealmear sold 16,477 shares on October 1, 2026, at $36.87 per share. The sale was made under a Rule 10b5-1 plan adopted September 22, 2025.

How many stock options did the Oklo CFO exercise?

Richard Craig Bealmear exercised options to acquire 16,477 shares on October 1, 2026, and another 5,619 shares on October 2, 2026. The exercise price was $3.18 per share for each transaction.

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

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Available on EDGAR 10/05/2026 - 04:02 PM Accepted by SEC EDGAR 10/05/2026 - 04:01 PM

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^*

Bealmear Richard Craig

(Last)

(First)

(Middle)

C/O OKLO INC.

3190 CORONADO DR.

(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 Financial Officer

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
10/01/2026

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)
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	Code	V	Amount	(A) or (D)	Price		6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
Class A Common Stock	10/01/2026		M		16,477	A	$3.18	478,119⁽¹⁾	D
Class A Common Stock	10/01/2026		S⁽²⁾		16,477	D	$36.87	461,642⁽¹⁾	D
Class A Common Stock	10/02/2026		M		5,619	A	$3.18	467,261⁽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)
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)	Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares	8. Price of Derivative Security (Instr. 5)		10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)
Stock Options	$3.18	10/01/2026		M			16,477	⁽³⁾	12/22/2033	Class A Common Stock	16,477	$0	597,542	D
Stock Options	$3.18	10/02/2026		M			5,619	⁽³⁾	12/22/2033	Class A Common Stock	5,619	$0	591,923	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. This sale reported herein was 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	10/05/2026
	** 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.
* Form 4: SEC 1474 (03-26)

Source: View Original Filing on SEC EDGAR