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Denison Mines Corp. news

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Cosa Announces Commencement of Summer Drilling Program at the Darby Uranium Joint Venture with Denison Mines

September 16, 2026

Cosa Announces Summer Drilling Results for Murphy Lake North Uranium Joint Venture with Denison Mines

September 14, 2026

Denison Reports Financial and Operational Results for Q2 2026, Highlighted by Significant Initial Progress from Construction Activities at the Phoenix In-Situ Recovery ('ISR') Uranium Mine

August 12, 2026

Cosa Announces Results of Partner Funded Airborne Radiometric Survey at the Aurora Uranium Project, Athabasca Basin, Saskatchewan

August 4, 2026

Denison Announces Completion of Site Preparation Activities and Commencement of Full-Scale Construction at Phoenix ISR Uranium Mine

July 28, 2026

Peter Ballantyne Cree Nation Withdraws Judicial Review and Confirms Support for the Wheeler River Project

July 2, 2026

Cosa Commences Partner Funded Ambient Noise Tomography Survey at the Astro Uranium Project, Athabasca Basin, Saskatchewan

June 26, 2026

Cosa Commences Largest Drill Program to Date at the Murphy Lake North Uranium Joint Venture with Denison Mines

June 18, 2026

Cosa Announces Summer Drill Plans for the Darby Joint Venture with Denison Mines

June 15, 2026

Cosa Announces C$5 Million Bought Deal Private Placement

June 3, 2026

Cosa Announces Largest Drill Program to Date at Murphy Lake North with Participation from Denison Mines

May 28, 2026

Cosa Intersects up to 1.7% U3O8 Within Interval of 5.0 m of 0.55% U3O8 at Murphy Lake North Joint Venture with Denison Mines

May 26, 2026

Foremost Clean Energy Announces Expansion of the Tuning Fork Uranium Zone at Hatchet Lake South

May 13, 2026

Denison Reports Financial and Operational Results for Q1 2026, Highlighted by Commencement of Site Preparation and Early Works for the Phoenix ISR Uranium Mine, and the Results of its Shareholder Meeting

May 12, 2026

Cosa Reports Anomalous Uranium in Sandstone at Darby Joint Venture with Denison Mines

May 6, 2026

Cosa Reports Anomalous Radioactivity in Multiple Drill Holes at the Murphy Lake North Joint Venture with Denison Mines

April 13, 2026

Investor Update - April 2026

April 7, 2026

Skyharbour Announces Drilling Underway and Renewed Permit at the High-Grade Moore Lake Uranium Project, Saskatchewan

April 1, 2026

Cosa Reports 5.0 metres of Anomalous Radioactivity up to 13,900 CPS Intersected at Murphy Lake North Joint Venture with Denison Mines

March 24, 2026

Utah's Forgotten Uranium Belt Is Getting a Second Look. Here's Why the Timing Matters.

March 23, 2026

Denison Reports Financial and Operational Results for 2025 and Final Investment Decision to Construct the Phoenix ISR Uranium Mine

March 10, 2026

Denison Mines Reports Financial and Operational Results for 2025 and Final Investment Decision to Construct the Phoenix ISR Uranium Mine

March 9, 2026

Cosa Announces Expansions to Orion Project and Joint Ventures with Denison Mines

March 3, 2026

Investor Update - March 2026

March 2, 2026

Denison Announces Final Investment Decision for the Phoenix In-Situ Recovery Uranium Mine and Plans to Start Construction in March 2026

February 24, 2026

Denison Mines Announces Final Investment Decision for the Phoenix In-Situ Recovery Uranium Mine and Plans to Start Construction in March 2026

February 23, 2026

Denison Receives Final Regulatory Approval to Construct the Phoenix ISR Uranium Mine

February 19, 2026

Denison Mines Receives Final Regulatory Approval to Construct the Phoenix ISR Uranium Mine

February 18, 2026

Denison Announces Award of Construction Management Contract to Wood Canada for the Phoenix Uranium Mine

February 17, 2026

Denison Mines Announces Award of Construction Management Contract to Wood Canada for the Phoenix Uranium Mine

February 16, 2026

Gold Candle Announces Appointment of Stephan Iafolla as Vice President Finance

February 2, 2026

Cosa Announces Commencement of Winter 2026 Drilling Campaign on Joint Ventures with Denison Mines

January 28, 2026

Cosa Announces Winter 2026 Drilling Plans for Joint Ventures with Denison Mines

January 21, 2026

Cosa Appoints Justin Rodko as VP Corporate Development and Issues Shares to Denison

January 14, 2026

Investor Update - January 2026

January 12, 2026

Denison Announces Grid Power Available at Future Phoenix Uranium Mine Site Following Completion of SaskPower Transmission Line

January 8, 2026

Denison Mines Announces Grid Power Available at Future Phoenix Uranium Mine Site Following Completion of SaskPower Transmission Line

January 7, 2026

Denison Reports Readiness to Commence Construction of Flagship Phoenix ISR Project and Provides Capital Cost Update

January 2, 2026

Denison Mines Reports Readiness to Commence Construction of Flagship Phoenix ISR Project and Provides Capital Cost Update

January 1, 2026

Foremost Clean Energy Announces $9.0 Million 2026 Exploration Program

December 22, 2025

Denison Announces Closing of Transaction with Skyharbour and Formation of Four Prospective Exploration Joint Ventures Proximal to Wheeler River

December 17, 2025

Skyharbour Closes Major Strategic Transaction with Denison Mines to Form Four New Joint Ventures at Russell Lake with Combined Project Consideration up to $61.5 Million

December 17, 2025

Denison Mines Announces Closing of Transaction with Skyharbour Resources and Formation of Four Prospective Exploration Joint Ventures Proximal to Wheeler River

December 16, 2025

Denison Announces Signing of Impact Benefit Agreement and Exploration Agreement with Métis Nation-Saskatchewan, MN-S NR-1, and MN-S NR-3

December 4, 2025

Denison Announces Signing of Impact Benefit Agreement and Exploration Agreement with Métis Nation-Saskatchewan, MN-S NR-1, and MN-S NR-3

December 4, 2025

Denison Mines Announces Signing of Impact Benefit Agreement and Exploration Agreement with Métis Nation-Saskatchewan, MN-S NR-1, and MN-S NR-3

December 3, 2025

Denison & Ya'thi Néné Lands and Resources Announce Signing of the Nuhenéné Benefit Agreement with Three First Nations and Four Municipalities

December 1, 2025

Denison & Ya'thi Néné Lands and Resources Announce Signing of the Nuhenéné Benefit Agreement with Three First Nations and Four Municipalities

December 1, 2025

Denison Mines & Ya'thi Néné Lands and Resources Announce Signing of the Nuhenéné Benefit Agreement with Three First Nations and Four Municipalities

November 30, 2025

Skyharbour Enters into Major Strategic Agreement with Denison Mines to Form Four New Joint Ventures at Russell Lake; Combined Project Consideration of up to $61.5 Million

November 17, 2025

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