STOCK TITAN

Insider Sale: Oklo Board Member Cuts Stake by 20%

Filing Impact
(Very High)
Filing Sentiment
(Negative)
Form Type
4

Rhea-AI Filing Summary

Oklo (NYSE:OKLO) filed a Form 4 disclosing that Director and 10% owner Michael Klein, through M. Klein Associates and Allies Capital, sold 50,000 common shares on 06/23/2025 at weighted-average prices of $55.2205, $53.7064 and $55.2165, generating roughly $2.75 million in gross proceeds. Klein’s indirect holdings declined from 250,000 to 200,000 shares, a 20% reduction, yet he remains a significant shareholder and board member. No derivative securities were involved, and the filing does not mark the transactions as conducted under a Rule 10b5-1 plan. These insider dispositions may influence investor perception of insider sentiment.

Positive

  • None.

Negative

  • Director and 10% owner Michael Klein sold 50,000 shares (~20% of his position) for about $2.75 M, a potentially negative insider-sentiment signal.

Insights

TL;DR: $2.75 M insider sale trims stake by 20%; signal skews negative but director still holds 200 k shares.

The aggregate sale of 50,000 shares at ≈$55 each signals a meaningful harvest of liquidity by a key insider, reducing indirect ownership from 250 k to 200 k shares. The dollar amount exceeds $2.7 M and meets the >5% holding threshold, making the transaction material. While Klein remains a 10 % owner, selling one-fifth of his position can be interpreted as waning near-term conviction. Lack of a disclosed 10b5-1 plan leaves open questions about timing discretion. Investors typically view sizeable discretionary sales from governance insiders as a modest negative valuation indicator, though the continuing 200 k-share stake preserves partial alignment with minority holders.

TL;DR: Director-level disposal without 10b5-1 flag may pressure governance optics.

Klein’s role as both director and 10% owner elevates scrutiny. A 20% divestiture in one day, filed jointly by two controlled entities, suggests active portfolio rebalancing rather than routine diversification. Absence of a checked 10b5-1 box implies discretionary timing, potentially heightening perceived information asymmetry risk. However, retaining 200,000 shares keeps his ownership firmly above customary influence thresholds, mitigating fears of strategic disengagement. Boards often monitor large insider sales to ensure they do not conflict with blackout policies; no violations are alleged here. Still, proxy advisors could view the magnitude and immediacy of the sale as a minor governance red flag.

Insider Klein Michael Stuart, M. Klein Associates, Inc.
Role Director | Director, 10% Owner
Sold 50,000 shs ($2.74M)
Type Security Shares Price Value
Sale Common Stock, par value $0.0001 per share 25,000 $55.2205 $1.38M
Sale Common Stock, par value $0.0001 per share 12,100 $53.7064 $650K
Sale Common Stock, par value $0.0001 per share 12,900 $55.2165 $712K
Holdings After Transaction: Common Stock, par value $0.0001 per share — 225,000 shares (Indirect, See footnote)
Footnotes (1)
  1. 212,900 of the shares reported (the "Shares") are held of record by M. Klein Associates, Inc. and 12,100 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 $55.2165 to $55.2248, 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. The Shares are held of record by M. Klein Associates, Inc. Michael Klein is the controlling stockholder of M. Klein Associates, Inc. The Shares are held of record by M. Klein Associates, Inc. Michael Klein is the controlling stockholder of M. Klein Associates, Inc.
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*
Klein Michael Stuart

(Last) (First) (Middle)
640 FIFTH AVENUE, 14TH FLOOR

(Street)
NEW YORK NY 10019

(City) (State) (Zip)
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)
3. Date of Earliest Transaction (Month/Day/Year)
06/23/2025
4. If Amendment, Date of Original Filed (Month/Day/Year)
6. Individual or Joint/Group Filing (Check Applicable Line)
Form filed by One Reporting Person
X Form filed by More than One Reporting Person
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
Common Stock, par value $0.0001 per share 06/23/2025 S 25,000 D $55.2205(1) 225,000(1) I See footnote(1)
Common Stock, par value $0.0001 per share 06/23/2025 S 12,100 D $53.7064(2) 212,900(2) I See footnote(2)
Common Stock, par value $0.0001 per share 06/23/2025 S 12,900 D $55.2165(3) 200,000(3) I See footnote(3)
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
1. Name and Address of Reporting Person*
Klein Michael Stuart

(Last) (First) (Middle)
640 FIFTH AVENUE, 14TH FLOOR

(Street)
NEW YORK NY 10019

(City) (State) (Zip)

Relationship of Reporting Person(s) to Issuer
X Director 10% Owner
Officer (give title below) Other (specify below)
1. Name and Address of Reporting Person*
M. Klein Associates, Inc.

(Last) (First) (Middle)
640 FIFTH AVENUE, 14TH FLOOR

(Street)
NEW YORK NY 10019

(City) (State) (Zip)

Relationship of Reporting Person(s) to Issuer
X Director X 10% Owner
Officer (give title below) Other (specify below)
Explanation of Responses:
1. 212,900 of the shares reported (the "Shares") are held of record by M. Klein Associates, Inc. and 12,100 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 $55.2165 to $55.2248, 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.
2. The Shares are held of record by M. Klein Associates, Inc. Michael Klein is the controlling stockholder of M. Klein Associates, Inc.
3. The Shares are held of record by M. Klein Associates, Inc. Michael Klein is the controlling stockholder of M. Klein Associates, Inc.
/s/ Michael Klein 06/25/2025
M. Klein Associates, Inc. /s/ Jay Taragin Name: Jay Taragin Title: Authorized Person 06/25/2025
** 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.

FAQ

How many OKLO shares did Michael Klein sell on 06/23/2025?

Form 4 shows sales of 50,000 common shares (25,000 + 12,100 + 12,900).

What was the sale price range for Michael Klein’s OKLO shares?

Weighted-average prices were $55.2205, $53.7064 and $55.2165 per share.

How many OKLO shares does Michael Klein own after the transaction?

Klein’s indirect beneficial ownership stands at 200,000 shares following the reported sales.

Did the filing indicate a Rule 10b5-1 trading plan for the sale?

The Form 4 does not show the Rule 10b5-1 checkbox as selected; no plan is indicated.

What percentage of Klein’s previous OKLO holdings was sold?

His stake declined from 250,000 to 200,000 shares—approximately a 20% reduction.