Michael Klein - 18 Jun 2025 Form 4 Insider Report for Oklo Inc. (OKLO)

Role: Director
Signature: /s/ Michael Klein
Issuer symbol: OKLO
Transactions as of: 18 Jun 2025
Net transactions value: -$15,764,275
Form type: 4
Filing time: 23 Jun 2025, 17:39:30 UTC
Previous filing: 19 May 2025
Next filing: 25 Jun 2025
SEC: View on sec.gov

Reporting Owners (2)

Name	Relationship	Address	Signature	Signature date	CIK
Klein Michael Stuart	Director	640 FIFTH AVENUE, 14TH FLOOR, NEW YORK	/s/ Michael Klein	23 Jun 2025	0001327392
M. Klein Associates, Inc.	Director, 10%+ Owner	640 FIFTH AVENUE, 14TH FLOOR, NEW YORK	M. Klein Associates, Inc. /s/ Jay Taragin Name: Jay Taragin Title: Authorized Person	23 Jun 2025	0001751504

Transactions Table

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Ownership	Footnotes
transaction	OKLO	Common Stock, par value $0.0001 per share	Sale	$6,352,570	-100,000	-20%	$63.53	400,000	18 Jun 2025	See footnote	F1
transaction	OKLO	Common Stock, par value $0.0001 per share	Sale	$9,411,705	-150,000	-38%	$62.74	250,000	20 Jun 2025	See footnote	F2

* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id	Content
F1	212,900 of the shares reported (the "Shares") are held of record by M. Klein Associates, Inc. and 187,100 of the Shares are held of record by Allies Capital Corp. Michael Klein is the controlling stockholder of M. Klein Associates, Inc.. Michael Klein is the sole stockholder of Allies Capital Corp. The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $63.5000 to $63.6400, inclusive. The reporting person undertakes to provide to the registrant, any security holder of the registrant, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range.
F2	212,900 of the Shares are held of record by M. Klein Associates, Inc. and 37,100 of the Shares are held of record by Allies Capital Corp. Michael Klein is the controlling stockholder of M. Klein Associates, Inc.. Michael Klein is the sole stockholder of Allies Capital Corp. The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $61.920 to $63.512, inclusive. The reporting person undertakes to provide to the registrant, any security holder of the registrant, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range.

Content

212,900 of the shares reported (the "Shares") are held of record by M. Klein Associates, Inc. and 187,100 of the Shares are held of record by Allies Capital Corp. Michael Klein is the controlling stockholder of M. Klein Associates, Inc.. Michael Klein is the sole stockholder of Allies Capital Corp. The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $63.5000 to $63.6400, inclusive. The reporting person undertakes to provide to the registrant, any security holder of the registrant, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range.

212,900 of the Shares are held of record by M. Klein Associates, Inc. and 37,100 of the Shares are held of record by Allies Capital Corp. Michael Klein is the controlling stockholder of M. Klein Associates, Inc.. Michael Klein is the sole stockholder of Allies Capital Corp. The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $61.920 to $63.512, inclusive. The reporting person undertakes to provide to the registrant, any security holder of the registrant, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range.