[144] Cameco Corporation SEC Filing

Rhea-AI Filing Summary

On 27 May 2025, a Form 144 was filed for Cameco Corporation (symbol CCJ) signaling the intent to sell 3,252 common shares through CIBC Investor Services on the Toronto Stock Exchange. The proposed transaction carries an aggregate market value of C$196,648 and equates to roughly 0.0007 % of Cameco’s 435,316,918 shares outstanding, indicating a negligible impact on the company’s overall float. The shares were originally acquired on 11 Feb 2020 via open-market purchases for cash. No additional insider sales have been reported during the preceding three-month period.

The filing does not reveal the seller’s identity or their relationship to Cameco, but under Rule 144 the filer certifies that no undisclosed material adverse information exists. Because the share count is small and represents an immaterial fraction of total shares, the filing is unlikely to influence liquidity, control, or valuation. Nevertheless, investors often track Form 144 notices for early insight into potential insider sentiment or future trading activity.

Positive

• Timely regulatory disclosure via Form 144 enhances transparency for investors.
• The 3,252-share volume represents only 0.0007 % of outstanding shares, implying minimal dilution or market overhang.

Negative

• Filing indicates planned share disposal, which can be perceived as a mild negative insider signal.
• Seller identity and relationship to issuer are unspecified, limiting insight into the motivation behind the transaction.

Insights

Securities Analyst

TL;DR: 3,252-share Form 144 filing appears immaterial; no price impact expected.

The proposed sale equals less than one-thousandth of a percent of Cameco’s outstanding equity, translating to a market value below C$0.2 million. Such a small disposition, even if executed in full, is unlikely to pressure CCJ’s share price or alter supply–demand dynamics. Absence of the seller’s name limits context, yet the transaction size suggests routine portfolio management rather than a strong signal on corporate fundamentals. Overall valuation and uranium market drivers remain the primary catalysts for CCJ, not this filing.

Corporate Governance Expert

TL;DR: Minor insider sale filing; negative governance signal muted by scale.

Rule 144 requires affiliates to notify regulators when disposing of restricted or control securities. The lack of disclosed relationship makes it unclear whether the seller is a director, officer, or large shareholder. Even if insider-related, a 3,252-share sale does not materially change ownership structure or voting power. Because the filer attests to having no undisclosed adverse information, governance risk appears low. Nonetheless, repeated small sales could cumulatively suggest reduced internal confidence, so investors may monitor future filings.

Form 144 Filer Information	UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 144 NOTICE OF PROPOSED SALE OF SECURITIES PURSUANT TO RULE 144 UNDER THE SECURITIES ACT OF 1933
FORM 144

144: Filer Information

Filer CIK
Filer CCC
Is this a LIVE or TEST Filing?	LIVE TEST
Submission Contact Information
Name
Phone
E-Mail Address

144: Issuer Information

Name of Issuer

SEC File Number

Address of Issuer

Phone

Name of Person for Whose Account the Securities are To Be Sold

See the definition of "person" in paragraph (a) of Rule 144. Information is to be given not only as to the person for whose account the securities are to be sold but also as to all other persons included in that definition. In addition, information shall be given as to sales by all persons whose sales are required by paragraph (e) of Rule 144 to be aggregated with sales for the account of the person filing this notice.

Relationship to Issuer

144: Securities Information

Title of the Class of Securities To Be Sold	Name and Address of the Broker	Number of Shares or Other Units To Be Sold	Aggregate Market Value	Number of Shares or Other Units Outstanding	Approximate Date of Sale	Name the Securities Exchange
Common Shares	CIBC Investor Services Inc. PO Box 4644 Station A Toronto A6 M5W 5E4	3252	196648.00	435316918	05/27/2025	TSX

Furnish the following information with respect to the acquisition of the securities to be sold and with respect to the payment of all or any part of the purchase price or other consideration therefor:

144: Securities To Be Sold

Title of the Class	Date you Acquired	Nature of Acquisition Transaction	Name of Person from Whom Acquired	Is this a Gift?	Date Donor Acquired	Amount of Securities Acquired	Date of Payment	Nature of Payment *
Common Shares	02/11/2020	Open Market Purchases	Open Market Purchases			3252	02/11/2020	Cash

* If the securities were purchased and full payment therefor was not made in cash at the time of purchase, explain in the table or in a note thereto the nature of the consideration given. If the consideration consisted of any note or other obligation, or if payment was made in installments describe the arrangement and state when the note or other obligation was discharged in full or the last installment paid.

Furnish the following information as to all securities of the issuer sold during the past 3 months by the person for whose account the securities are to be sold.

144: Securities Sold During The Past 3 Months

Nothing to Report

144: Remarks and Signature

Remarks

Date of Notice

ATTENTION:

The person for whose account the securities to which this notice relates are to be sold hereby represents by signing this notice that he does not know any material adverse information in regard to the current and prospective operations of the Issuer of the securities to be sold which has not been publicly disclosed. If such person has adopted a written trading plan or given trading instructions to satisfy Rule 10b5-1 under the Exchange Act, by signing the form and indicating the date that the plan was adopted or the instruction given, that person makes such representation as of the plan adoption or instruction date.

Signature

ATTENTION: Intentional misstatements or omission of facts constitute Federal Criminal Violations (See 18 U.S.C. 1001)

FAQ

What does Cameco's (CCJ) May 2025 Form 144 filing disclose?

The filing notifies regulators of an intent to sell 3,252 Cameco common shares valued at C$196,648 under Rule 144.

How many shares are being registered for sale and what is their value?

3,252 common shares with an aggregate market value of C$196,648 are registered for potential sale.

What percentage of Cameco’s shares outstanding does 3,252 shares represent?

Approximately 0.0007 % of the company’s 435,316,918 outstanding shares.

When were the shares originally acquired?

The shares were bought on 11 February 2020 via open-market purchases for cash.

Which broker and exchange will handle the sale?

The proposed sale is through CIBC Investor Services on the Toronto Stock Exchange (TSX).

Were any shares sold in the past three months by the filer?

No. The Form 144 states "Nothing to Report" for securities sold during the past three months.