UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, DC 20549

FORM 6-K

Report of Foreign Private Issuer

Pursuant to Rule 13a-16 or 15d-16

Under the Securities Exchange Act of 1934

For the month of July, 2025

Cameco Corporation

(Commission file No. 1-14228)

2121-11th Street West

Saskatoon, Saskatchewan, Canada S7M 1J3

(Address of Principal Executive Offices)

Indicate by check mark whether the registrant files or will file annual reports under cover Form 20-F or Form 40-F.

Form 20-F ☐ Form 40-F ☑

Indicate by check mark whether the registrant by furnishing the information contained in this Form is also thereby furnishing the information to the Commission pursuant to Rule 12g3-2(b) under the Securities Exchange Act of 1934.

Yes ☐ No ☑

If “Yes” is marked, indicate below the file number assigned to the registrant in connection with Rule 12g3-2(b):

Exhibit Index


Exhibit No.		Description

99.1		Press Release dated July 31, 2025¹

99.2		Management’s discussion and analysis for the quarter ended June 30, 2025

99.3		Condensed consolidated interim unaudited financial statements for the quarter ended June 30, 2025

99.4		Certification of Chief Executive Officer pursuant to Section 302 of the Sarbanes-Oxley Act of 2002 dated July 31, 2025

99.5		Certification of Chief Financial Officer pursuant to Section 302 of the Sarbanes-Oxley Act of 2002 dated July 31, 2025

1	Exhibit 99.1 to this Form 6-K shall not be deemed incorporated by reference into any registration statement (or any prospectus that forms a part thereof) or other filing made by Cameco Corporation with the U.S. Securities and Exchange Commission.

SIGNATURE

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned, thereunto duly authorized.

Date: July 31, 2025

Cameco Corporation

/s/ Sean A. Quinn

Sean A. Quinn

Senior Vice-President, Chief Legal Officer and Corporate Secretary

CAMECO CORP 6-K