# EDGAR Filing Document

**Accession Number:** 0001009001
**File Stem:** 0001193125-25-137600
**Filing Date:** 2025-6
**Character Count:** 7369
**Document Hash:** d200ef1177dcda8c5d50134cae0468af
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0001193125-25-137600.hdr.sgml**: 20250609

**ACCESSION NUMBER**: 0001193125-25-137600

**CONFORMED SUBMISSION TYPE**: 6-K

**PUBLIC DOCUMENT COUNT**: 3

**CONFORMED PERIOD OF REPORT**: 20250609

**FILED AS OF DATE**: 20250609

**DATE AS OF CHANGE**: 20250609

**FILER**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** CAMECO CORP
- **CENTRAL INDEX KEY:** 0001009001
- **STANDARD INDUSTRIAL CLASSIFICATION:** MISCELLANEOUS METAL ORES [1090]
- **ORGANIZATION NAME:** 01 Energy & Transportation
- **EIN:** 980113090
- **FISCAL YEAR END:** 1231

**FILING VALUES:**
- **FORM TYPE:** 6-K
- **SEC ACT:** 1934 Act
- **SEC FILE NUMBER:** 001-14228
- **FILM NUMBER:** 251033305

**BUSINESS ADDRESS:**
- **STREET 1:** 2121 11TH ST W
- **CITY:** SASKATOON
- **STATE:** A9
- **ZIP:** S7M 1J3
- **BUSINESS PHONE:** 3069566200

**MAIL ADDRESS:**
- **STREET 1:** 2121 11TH ST W.
- **CITY:** SASKATOON
- **STATE:** A9
- **ZIP:** S7M 1J3

**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 June, 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):

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**<u>Exhibit Index</u>**

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| | |
|:---|:---|
| Exhibit No. | Description |
| 99.1 | [Press Release dated June 6, 2025](d892144dex991.htm) |

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**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.

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| | | |
|:---|:---|:---|
| Date: June 9, 2025 | Cameco Corporation | Cameco Corporation |
|  | By: | /s/ Sean A. Quinn |
|  |  | Sean A. Quinn |
|  |  | Senior Vice-President, Chief Legal Officer |
|  |  | and Corporate Secretary |

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## Exhibit 99.1

**Exhibit 99.1**![LOGO](g892144g0609204417869.jpg)

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| | | |
|:---|:---|:---|
| **NEWS RELEASE** | www.cameco.com | **Saskatoon** |
| *All amounts in Canadian dollars*<br> *unless specified otherwise* |  | Saskatchewan<br> Canada |

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**Cameco Reports Expected Increase in Its Share of Westinghouse 2025 Adjusted EBITDA** 

**June 06, 2025** 

**Cameco** (TSX: CCO; NYSE: CCJ) reports an expected increase of approximately $170 million (US) in our 49% equity share of Westinghouse Electric Company's (Westinghouse) 2025 second quarter and annual adjusted EBITDA. The expected increase is tied to Westinghouse's participation in the construction project for two nuclear reactors at the Dukovany power plant in the Czech Republic. This expected increase will be taken into consideration in determining the 2025 distribution payable by Westinghouse to Cameco.

In addition to the increase in adjusted EBITDA in 2025, we expect significant financial benefits for Westinghouse, as a subcontractor, over the term of the Dukovany construction project and related to the provision of the fuel fabrication services required for both reactors for a specified period. The outlook for Westinghouse's compound annual growth rate for adjusted EBITDA remains 6% to 10% over the next five years, excluding the impact of the expected $170 million (US) increase in its 2025 adjusted EBITDA.

Cameco owns a 49% interest in Westinghouse and its partner, Brookfield Renewable Partners, owns the remaining 51%.

**Caution about forward-looking information** 

This news release includes statements and information about our expectations for the future, which we refer to as forward-looking information. Forward-looking information is based on our current views, which can change significantly, and actual results and events may be significantly different from what we currently expect. Examples of forward-looking information in this news release include our expectations regarding: Westinghouse's participation in the Dukovany power plant construction project; an increase in Westinghouse's adjusted EBITDA; Westinghouse taking this increase into consideration in determining the 2025 distribution payable to Cameco; the financial benefits for Westinghouse, as subcontractor, over the term of the Dukovany construction project and the expected future growth in Westinghouse's compound annual growth rate for adjusted EBITDA. Material risks that could lead to different results include the risk that Westinghouse is not able to participate in the Dukovany construction project on a basis that achieves the currently expected benefits to Westinghouse for any reason, or that Cameco may not derive the expected increases in its share of Westinghouse's adjusted EBITDA, or that Westinghouse does not achieve the expected future annual growth in adjusted EBITDA. In presenting the forward-looking information, we have made material assumptions which may prove incorrect about Westinghouse's participation in the Dukovany construction project and related potential benefits to Westinghouse, and continuing growth in Westinghouse's compound annual growth rate for adjusted EBITDA.

**Non-IFRS Measures** 

Adjusted EBITDA is a measure that does not have a standardized meaning or a consistent basis of calculation under International Financial Reporting Standards (a non-IFRS measure). Westinghouse's adjusted EBITDA is defined as its net income, adjusted for the impact of certain expenses, costs, charges or benefits incurred in such period which are either not indicative of underlying business performance or that impact the ability to assess the operating performance of its business. For more information regarding our use of this non-IFRS measure see our most recent annual and quarterly Management's Discussion and Analysis.

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**Profile** 

Cameco is one of the largest global providers of the uranium fuel needed to power a secure energy future. Our competitive position is based on our controlling ownership of the world's largest high-grade reserves and low-cost operations, as well as significant investments across the nuclear fuel cycle, including ownership interests in Westinghouse Electric Company and Global Laser Enrichment. Utilities around the world rely on Cameco to provide global nuclear fuel solutions for the generation of safe, reliable, carbon-free nuclear power. Our shares trade on the Toronto and New York stock exchanges. Our head office is in Saskatoon, Saskatchewan, Canada.

As used in this news release, the terms we, us, our, the Company and Cameco mean Cameco Corporation and its subsidiaries unless otherwise indicated.

- End -

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| | |
|:---|:---|
| **Investor inquiries** | **Media inquiries** |
| Cory Kos | Veronica Baker |
| 306-716-6782 | 306-385-5541 |
| cory_kos@cameco.com | veronica_baker@cameco.com |

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