Michael Klein - 22 Sep 2025 Form 4 Insider Report for Oklo Inc. (OKLO)

Role
Director, 10%+ Owner
Signature
M. Klein Associates, Inc. /s/ Jay Taragin Name: Jay Taragin Title: Authorized Person
Issuer symbol
OKLO
Transactions as of
22 Sep 2025
Transactions value $
-$6,687,912
Form type
4
Filing time
24 Sep 2025, 20:36:22 UTC
Previous filing
18 Jul 2025
Next filing
19 Dec 2025
SEC
View on sec.gov

Reporting Owners (1)

Name Relationship Address Signature Signature date CIK
Klein Michael Stuart Director, 10%+ Owner 640 FIFTH AVENUE, 14TH FLOOR, NEW YORK M. Klein Associates, Inc. /s/ Jay Taragin Name: Jay Taragin Title: Authorized Person 24 Sep 2025 0001327392

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 -$5.34M -40K -20% $133.40 160K 22 Sep 2025 See Footnote F1
transaction OKLO Common Stock, par value $0.0001 per share Sale -$1.35M -10K -6.25% $135.20 150K 22 Sep 2025 See Footnote F2
* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id Content
F1 The shares are held of record by M. Klein Associates, Inc. Michael Klein is the controlling stockholder of M. Klein Associates, Inc. The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $133.255 to $133.57, 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 The shares are held of record by M. Klein Associates, Inc. Michael Klein is the controlling stockholder of M. Klein Associates, Inc.