Welcome to our dedicated page for Cameco SEC filings (Ticker: CCJ), a comprehensive resource for investors and traders seeking official regulatory documents including 10-K annual reports, 10-Q quarterly earnings, 8-K material events, and insider trading forms.
Cameco Corporation's SEC filings document a Canadian nuclear energy company that reports to U.S. regulators primarily through Form 6-K current reports and Form 40-F annual materials. The record includes IFRS financial statements, management's discussion and analysis, annual reports, interim results, and disclosures for the Uranium, Fuel Services, and Westinghouse segments.
Company filings also cover proxy materials, annual meeting notices, director election voting results, executive-compensation advisory matters, auditor appointments, officer certifications, registration-statement incorporations, and corporate-governance documents such as the Code of Conduct and Ethics. Additional exhibits address long-term uranium supply agreements and supply-chain compliance reporting, including the Modern Slavery Report for Cameco and Cameco Fuel Manufacturing Inc.
Cameco Corporation is increasing its ownership stake in the Cigar Lake uranium mine by acquiring part of TEPCO Resources Inc.’s 5% joint-venture interest for approximately $115.75 million, subject to customary closing adjustments and regulatory approvals. Upon closing, Cameco’s interest will rise by 2.871 percentage points to 57.418%, while Orano Canada Inc.’s stake will increase to 42.582%. Cigar Lake is described as a high-grade, safe and cost-effective uranium operation with proven and probable reserves of 172.4 million pounds of U3O8 and additional measured, indicated and inferred resources as of December 31, 2025. Since starting production in 2014, it has produced about 174.5 million packaged pounds, and 2026 production is expected between 17.5 million and 18 million pounds on a 100% basis. Cameco plans to maintain production in the current CLMain area and advance CLExt development work to extend mine life to 2036, with capital projects aligned to its disciplined contracting, operational and capital allocation strategy.
Cameco Corporation reports that the McArthur River mine and Key Lake mill in northern Saskatchewan have resumed full production after a temporary disruption caused by flooding-related transportation issues. Despite the logistics challenge, the company’s 2026 production plan for this operation has not changed.
Cameco’s consolidated 2026 production outlook remains at 19.5 million to 21.5 million pounds of U3O8 (its share). Management notes ongoing seasonal risks from spring thawing and precipitation that could again restrict roads and delay delivery of critical operating materials, but current operations, including the Cigar Lake mine, are continuing.
Cameco Corporation reported an operational update for its northern Saskatchewan sites following regional flooding that has damaged transportation routes. Flooding caused the collapse of the Smoothstone River Bridge on the primary supply route to the McArthur River mine and Key Lake mill, and restrictions exist on an alternative road.
As a result, Cameco has temporarily halted production activities at the Key Lake mill and reduced activity at the McArthur River mine until normal deliveries of critical operating materials can resume, with the timing currently unknown. The Cigar Lake mine continues to operate, and the company’s consolidated annual production plan remains unchanged, although Cameco notes a risk that its 2026 production outlook for the McArthur River/Key Lake operation could be affected depending on the duration of road restrictions and delivery capabilities.
Cameco Corporation reported the results of its May 7, 2026 annual meeting. Shareholders elected nine directors – Tammy Cook-Searson, Catherine Gignac, Tim Gitzel, Marie Inkster, Kathryn Jackson, Don Kayne, Peter Kukielski, Dominique Minière and Leontine van Leeuwen-Atkins – with strong support. After applying the 25% non-resident shareholder voting restriction, support for each director ranged from 98.13% to 99.78% of votes cast.
Shareholders also approved the appointment of KPMG LLP as auditors, with 93.17% of votes for after the non-resident vote reduction. An advisory resolution on Cameco’s executive compensation approach passed as well, receiving 98.63% of votes cast in favour after applying the same 25% cap.
Cameco Corporation reported sharply stronger first-quarter 2026 results, driven mainly by its uranium segment and its share of Westinghouse. Revenue rose to $845 million, up 7% from 2025, while net earnings attributable to equity holders increased to $131 million, an 87% gain.
Adjusted net earnings more than doubled to $203 million, and adjusted EBITDA climbed 44% to $509 million, reflecting higher uranium sales volumes, improved realized prices and higher equity earnings from JV Inkai and Westinghouse. Uranium production grew modestly, and annual production and financial guidance for 2026 remain unchanged, with management emphasizing strong long-term demand for nuclear energy.
Cameco Corporation filed a Form 6-K furnishing its 2025 Modern Slavery Report, covering the year ended December 31, 2025 for Cameco and Cameco Fuel Manufacturing Inc. The report explains how the company seeks to prevent forced and child labour in its operations and supply chains.
Cameco outlines policies such as its Code of Conduct and Ethics, People Policy, Supplier Code of Conduct and Ethics, and Procurement of Goods and Services Policy. It describes risk management processes, supplier screening, training, and reporting channels, and states it has not identified instances of forced or child labour.
Cameco Corporation is inviting shareholders to its 2026 annual meeting on May 7, 2026, at 10:00 a.m. CST via live webcast from Saskatoon. Holders of common shares at March 9, 2026 can vote on electing nine directors, reappointing KPMG as auditor, and an advisory say-on-pay resolution on executive compensation, as well as receive the 2025 audited financial statements. There were 435,532,978 common shares outstanding as of March 9, 2026. The circular explains Canadian residency-based ownership and voting limits, majority voting for directors, enhanced board independence, and updated director fee levels and share ownership requirements. Cameco uses notice-and-access to distribute materials electronically and strongly encourages advance proxy voting.
Solium Financial Inc. filed a Form 144 notifying a proposed sale of 2,000 common shares with an aggregate amount shown as $216,080.00 and CUSIP 435532978, dated 03/24/2026. The filing lists prior acquisitions from LTI vesting of 987 shares on 03/03/2023 and 1,013 shares on 03/01/2024, and a disclosed sale of 4,000 shares by Ronald Liam Mooney on 01/05/2026 for $400,680.00.
Cameco Corporation filed an Annual Report on Form 40-F that includes its audited 2025 financial statements and related disclosures. The filing states 435,457,978 Common Shares outstanding as of December 31, 2025. Management and the CEO/CFO concluded that disclosure controls and internal control over financial reporting were effective as of December 31, 2025, and the auditor KPMG LLP attested to the effectiveness in its report accompanying the 2025 consolidated audited financial statements.
The filing discloses that Cameco implemented SAP S/4 HANA in April 2024 and modified/implemented related controls; it describes off-balance-sheet arrangements (financial assurances and long-term product purchase contracts) and identifies exhibits including the 2025 Annual Information Form, MD&A, audited statements, and governance materials.