Oklo director granted 4,699 restricted stock units

Peters Mark T reported acquisition or exercise transactions in this Form 4 filing.

Rhea-AI Filing Summary

Peters Mark T reported acquisition or exercise transactions in this Form 4 filing.

Oklo Inc. director Mark T. Peters received a grant of 4,699 restricted stock units, each representing a contingent right to one share of Class A Common Stock. These units vest in full on April 10, 2027. Following the transactions, he also reports 100 Class A shares held indirectly through The Peters Family Trust.

Insider Trade Summary

Grant/Award: 4,699 shares

Grant/Award 2 txns

Insider Peters Mark T

Role Director

Type	Security	Shares	Price	Value
Grant/Award	Restricted Stock Units	4,699	$0.00	$0.00
holding	Class A Common Stock	--	--	--

Holdings After Transaction: Restricted Stock Units — 4,699 contracts (Direct); Class A Common Stock — 100 shares (Indirect, The Peters Family Trust)

Footnotes (2)

1. F1. Each restricted stock unit represents a contingent right to receive one share of the Issuer's Class A Common Stock.
2. F2. The restricted stock units vest in full on April 10, 2027.

Key Figures

RSU grant size: 4,699 units Underlying shares: 4,699 shares Vesting date: April 10, 2027 +2 more

5 metrics

RSU grant size 4,699 units Restricted stock units granted on April 10, 2026

Underlying shares 4,699 shares Class A Common Stock underlying the RSUs

Vesting date April 10, 2027 RSUs vest in full on this date

Indirect share holding 100 shares Class A Common Stock held via The Peters Family Trust

RSU grant price $0.0000 per unit Grant/award acquisition with no exercise price

Key Terms

Restricted Stock Units, Class A Common Stock, contingent right, indirect ownership

4 terms

Restricted Stock Units financial

"The restricted stock units vest in full on April 10, 2027."

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.

Class A Common Stock financial

"Each restricted stock unit represents a contingent right to receive one share of the Issuer's Class A Common Stock."

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.

contingent right financial

"Each restricted stock unit represents a contingent right to receive one share of the Issuer's Class A Common Stock."

indirect ownership financial

"Class A Common Stock held indirectly through The Peters Family Trust."

FAQ

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

What insider transactions did Oklo (OKLO) disclose for Mark T. Peters?

Oklo reported a grant of 4,699 restricted stock units to director Mark T. Peters and 100 Class A shares held indirectly through The Peters Family Trust. The RSUs are a stock-based compensation award, not an open-market share purchase or sale.

How many Oklo (OKLO) restricted stock units were granted to Mark T. Peters?

Mark T. Peters was granted 4,699 restricted stock units, each linked to one share of Oklo’s Class A Common Stock. These units increase his equity-based compensation and will convert into shares only if the vesting conditions are satisfied.

When do Mark T. Peters’ Oklo (OKLO) restricted stock units vest?

The 4,699 restricted stock units vest in full on April 10, 2027. Once vested, each unit entitles Peters to receive one share of Oklo’s Class A Common Stock, assuming continued satisfaction of the award’s conditions through the vesting date.

What does each Oklo (OKLO) restricted stock unit represent for Mark T. Peters?

Each restricted stock unit represents a contingent right to one Oklo Class A share. This means Peters does not receive shares immediately; instead, shares are delivered if the RSUs vest in accordance with their terms on April 10, 2027.

How many Oklo (OKLO) shares does The Peters Family Trust hold indirectly?

The Peters Family Trust is reported as holding 100 Class A shares of Oklo Inc. as an indirect ownership position related to Mark T. Peters. This trust holding is separate from his directly held restricted stock unit award of 4,699 units.

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

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Accepted by SEC EDGAR 04/20/2026 - 05:43 PM EDT 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^*

Peters Mark T

(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)

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

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
04/10/2026

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								100	I	The Peters Family Trust

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
Restricted Stock Units	(1)	04/10/2026		A		4,699		(2)	(2)	Class A Common Stock	4,699	$0	4,699	D

Explanation of Responses:

1. Each restricted stock unit represents a contingent right to receive one share of the Issuer's Class A Common Stock.

2. The restricted stock units vest in full on April 10, 2027.

Remarks:

	/s/ Richard Craig Bealmear, Attorney-in-Fact	04/20/2026
	** 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)