Cameco : Report of Voting Results %282026 05 07%29 0

CCJ

Published on 05/08/2026 at 05:12 pm EDT

May 7, 2026

Canadian Securities Administrators

Corporate Office 2121 11th Street West

Saskatoon SK S7M 1J3 Canada

Tel: +1 (306) 956-6200

https://www.cameco.com

In accordance with Section 11.3 of National Instrument 51-102 - Continuous Disclosure Obligations, we advise of the results of the voting on the matters submitted to the annual meeting (the Meeting) of the shareholders (the Shareholders) of Cameco Corporation (the Corporation) held on May 7, 2026. Each matter voted on is described in greater detail in the Corporation's 2026 Management Proxy Circular issued in connection with this meeting, which is available at cameco.com.

The matters voted upon at the Meeting and the results of the voting were as follows:

Item 1: Election of Directors

The following directors were elected to hold office for the ensuing year or until their successors are elected or appointed:

Tammy Cook-Searson Don Kayne Catherine Gignac Peter Kukielski

Tim Gitzel Dominique Minière

Marie Inkster Leontine van Leeuwen-Atkins Kathryn Jackson

The outcome of the ballot vote, both before and after giving effect to the twenty-five (25%) percent non-resident Shareholder voting restriction, was as follows:

Vote Results Before Reduction of Non-resident Vote:

Nominee

Votes For

% Votes For

Votes

Against

% Votes Against

Tammy Cook-Searson

268,546,019

99.46%

1,445,035

0.54%

Catherine Gignac

257,616,122

95.42%

12,374,935

4.58%

Tim Gitzel

269,493,993

99.82%

497,067

0.18%

Marie Inkster

268,122,805

99.31%

1,868,248

0.69%

Kathryn Jackson

267,520,591

99.08%

2,470,465

0.92%

Don Kayne

262,615,561

97.27%

7,375,495

2.73%

Peter Kukielski

268,828,780

99.57%

1,162,278

0.43%

Dominique Minière

266,630,842

98.76%

3,360,213

1.24%

Leontine van Leeuwen-

Atkins

268,148,177

99.32%

1,842,880

0.68%

Vote Results After Reduction of Non-resident Vote to 25%:

Nominee

Votes For

% Votes For

Votes

Against

% Votes Against

Tammy Cook-Searson

73,976,654

99.57%

322,919

0.43%

Catherine Gignac

72,913,617

98.13%

1,385,967

1.87%

Tim Gitzel

74,100,179

99.77%

174,337

0.23%

Marie Inkster

73,781,111

99.33%

494,252

0.67%

Kathryn Jackson

73,302,463

98.69%

972,353

1.31%

Don Kayne

73,311,694

98.81%

882,589

1.19%

Peter Kukielski

74,137,072

99.78%

162,508

0.22%

Dominique Minière

73,460,367

99.35%

480,348

0.65%

Leontine van Leeuwen-

Atkins

73,814,853

99.38%

460,340

0.62%

Item 2: Appointment of Auditors

On a vote by ballot, KPMG LLP was appointed auditors of the Corporation to hold office until the next annual meeting of Shareholders, or until their successors are appointed.

The outcome of the ballot vote, both before and after giving effect to the twenty-five (25%) percent non-resident Shareholder voting restriction, was as follows:

Vote Results Before Reduction of Non-resident Vote:

Votes For

% Votes For

Votes Withheld

% Votes Withheld

272,099,367

90.32%

29,170,316

9.68%

Vote Results After Reduction of Non-resident Vote to 25%:

Votes For

% Votes For

Votes Withheld

% Votes Withheld

69,559,186

93.17%

5,095,830

6.83%

Item 3: Executive Compensation

On a vote by ballot, an advisory resolution was passed accepting the approach to executive compensation disclosed in Cameco's Management Proxy Circular delivered in advance of this meeting.

The outcome of the ballot vote, both before and after giving effect to the twenty-five (25%) percent non-resident Shareholder voting restriction, was as follows:

Vote Results Before Reduction of Non-resident Vote:

Votes For

% Votes For

Votes Against

% Votes Against

265,970,208

97.07%

8,038,777

2.93%

Vote Results After Reduction of Non-resident Vote to 25%:

Votes For

% Votes For

Votes Against

% Votes Against

73,630,638

98.63%

1,024,378

1.37%

By: "JennyL.Hoffman"

Jenny L. Hoffman Corporate Secretary

Disclaimer

Cameco Corporation published this content on May 08, 2026, and is solely responsible for the information contained herein. Distributed via Public Technologies (PUBT), unedited and unaltered, on May 08, 2026 at 21:11 UTC.