[Form 4] Oklo Inc. Insider Trading Activity

Rhea-AI Filing Summary

Oklo Inc. Chief Technology Officer Patrick Joseph Schweiger reported compensation-related equity activity. On March 24, 2026, 12,882 restricted stock units (RSUs) vested, each converting into one share of Class A Common Stock at a conversion price of $0.00 per share. Following this vesting, he held 59,034 RSUs. On the same date, 12,882 shares of Class A Common Stock were acquired from the RSU settlement, bringing his direct common stock holdings to 24,991 shares. On March 25, 2026, he sold 5,561 shares of Class A Common Stock at an average price of $56.48 per share to cover tax withholding obligations associated with the RSU vesting, a non-discretionary “sell to cover” transaction. After these transactions, he directly owned 19,430 shares of Class A Common Stock.

Insider Trade Summary

Net Seller: 5,561 shares ($314,085)

Net Sell 3 txns

Insider Schweiger Patrick Joseph

Role Chief Technology Officer

Sold 5,561 shs ($314K)

Type	Security	Shares	Price	Value
Sale	Class A Common Stock	5,561	$56.48	$314K
Exercise	Restricted Stock Units	12,882	$0.00	--
Exercise	Class A Common Stock	12,882	$0.00	--

Holdings After Transaction: Class A Common Stock — 19,430 shares (Direct); Restricted Stock Units — 59,034 shares (Direct)

Footnotes (1)

1. Each restricted stock unit ("RSU") represents a contingent right to receive one share of the Issuer's Class A Common Stock. On March 24, 2026, 12,882 RSUs were released to the Reporting Person. 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 listed in Table II. 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. On March 15, 2025, the Reporting Person was granted 38,648 RSUs, vesting as to one-third of the underlying shares on March 15, 2026 and thereafter in substantially equal monthly installments.

Form 4 Insider Transactions: What Each Field Means →

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^*

Schweiger Patrick Joseph

(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 Technology Officer

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
03/24/2026

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	03/24/2026		M		12,882	A	(1)	24,991	D
Class A Common Stock	03/25/2026		S(2)		5,561	D	$56.48	19,430	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
Restricted Stock Units	(1)	03/24/2026		M			12,882	(3)	(3)	Class A Common Stock	12,882	$0	59,034	D

Explanation of Responses:

1. Each restricted stock unit ("RSU") represents a contingent right to receive one share of the Issuer's Class A Common Stock. On March 24, 2026, 12,882 RSUs were released to the Reporting Person.

2. 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 listed in Table II. 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.

3. On March 15, 2025, the Reporting Person was granted 38,648 RSUs, vesting as to one-third of the underlying shares on March 15, 2026 and thereafter in substantially equal monthly installments.

Remarks:

	/s/ Richard Craig Bealmear, Attorney-in-Fact	03/25/2026
	** 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)

FAQ

What insider transactions did Oklo (OKLO) report for CTO Patrick Schweiger?

Oklo’s CTO Patrick Schweiger reported RSU vesting and a related tax sale. 12,882 RSUs vested into Class A shares, and 5,561 shares were sold solely to cover tax withholding obligations under a non-discretionary “sell to cover” arrangement.

How many Oklo (OKLO) RSUs vested for the CTO in this Form 4?

A total of 12,882 restricted stock units vested for the CTO. Each RSU represents a right to receive one share of Oklo’s Class A Common Stock, increasing his equity exposure through compensation rather than an open-market purchase.

Why did Oklo’s CTO sell 5,561 shares of Class A Common Stock?

The 5,561 shares were sold strictly to cover tax withholding obligations from the RSU vesting. The filing states this was a “sell to cover” transaction and explicitly notes it does not represent a discretionary sale decision by the reporting person.

What are Patrick Schweiger’s Oklo (OKLO) share holdings after these transactions?

After the reported transactions, Patrick Schweiger directly owns 19,430 shares of Oklo Class A Common Stock. He also has 59,034 restricted stock units outstanding, which may settle into additional shares over time as they vest under their grant terms.

How were the vested Oklo (OKLO) RSUs originally granted to the CTO?

The RSUs were part of a 38,648-unit grant made on March 15, 2025. One-third of the underlying shares vest on March 15, 2026, with the remaining RSUs vesting thereafter in substantially equal monthly installments according to the disclosed vesting schedule.

Does this Oklo (OKLO) Form 4 indicate a major discretionary stock sale by the CTO?

No, the filing describes the sale of 5,561 shares as solely to satisfy tax withholding obligations. It clarifies the transaction was a non-discretionary “sell to cover” tied to RSU vesting, rather than an independent decision to liquidate a large stock position.