NexGen Energy Ltd. filings document the company's Canadian uranium development business through Form 6-K reports, interim financial statements, management discussion and analysis, and exhibit filings. Recent disclosures cover the Rook I Project, Patterson Corridor East assay results, Canadian Nuclear Safety Commission approval materials, project-site activity, and related news releases furnished to the SEC.
The filings also include financial statement notes on exploration and evaluation assets, mineral property, plant and equipment, strategic inventory, convertible debentures, derivative liabilities, and certifications of interim filings. Governance-related records include a notice of change of auditor and exhibits incorporated by reference into the company's Form F-10 registration statement.
NexGen Energy reported final 2025 assay results from its 100%-owned Patterson Corridor East (PCE) uranium discovery, 3.5 km from the Arrow Deposit. The results confirm both expansion and continuity of a primary high-grade subdomain and establish a new high-grade subdomain at depth.
Key intercepts include RK-25-239 with 13.0 m at 5.2% U3O8, including 0.5 m at 30.2% U3O8 around 400 m below surface, and RK-25-240 with 10.0 m at 3.95% U3O8, including 0.5 m at 33.3% U3O8 around 670 m below surface. Additional holes such as RK-25-230, RK-25-233 and RK-25-236 show multiple shorter high-grade intervals that help define a strong core zone that remains open in most directions.
A new secondary high-grade subdomain about 850 m below surface is confirmed by RK-25-257, which returned 4.5 m at 4.8% U3O8 including 0.5 m at 33.3% U3O8, 67 m up dip of earlier hole RK-24-202. For 2026, an exploration campaign of 42,000 m is planned at PCE, with 29,241.8 m scheduled to recommence in late May and samples already submitted for analysis.
NexGen Energy reported a Q1 2026 net loss of $156.0 million (loss of $0.24 per share), mainly driven by a non-cash $128.9 million mark-to-market loss on its US$360 million convertible debentures as the share price rose. Operating expenses also increased on higher bonuses and share-based compensation.
The company’s financial position remains strong, with $655.4 million in cash, $362.9 million in short-term investments, and 2.7 million lbs of purchased U₃O₈ carried at $341.2 million. Adjusted working capital, excluding debentures and including uranium inventory, totaled about $1.33 billion.
In March 2026, NexGen received Canadian Nuclear Safety Commission approval of its environmental assessment and a Licence to Prepare Site and Construct for the Rook I uranium project, the final major regulatory step before full construction. Following this milestone, approximately $721.6 million of exploration costs were reclassified into $748.4 million of assets under construction, underscoring Rook I’s transition from exploration to development.
NexGen Energy Ltd. filed a Form 6-K to share details of its upcoming Q1 2026 conference call. The call is scheduled for Thursday, May 7, 2026, at 8:00 a.m. Eastern Time and will feature the company’s senior leadership team.
Management plans to discuss site activities at the 100% owned Rook I Project, including the 2025 site infrastructure program, construction preparation, pending major contract announcements, timelines and procurement readiness, financing, and drilling results at Patterson Corridor East. The company also notes strengthening uranium market dynamics and its strategy to maximize leverage to future uranium prices.
Before the call, NexGen expects to file its Q1 2026 Financial Statements and MD&A, which will be available on its website, SEDAR+, and EDGAR. A replay of the conference call will also be accessible on the company’s website.
NexGen Energy Ltd. reports results from its 2026 winter drill program at the Patterson Corridor East (PCE) uranium target. The high-grade subdomain within PCE has expanded to 550 m in vertical extent, a 33% increase, with a strike length of 210 m, indicating a larger and more continuous zone of strong mineralization.
Key holes include RK-26-280c1, which intersected 4.2 m of >10,000 cps natural gamma readings including 0.6 m of off-scale >61,000 cps at 834 m below surface, and RK-26-271c1, which returned 12.6 m of >10,000 cps including 2.3 m of >61,000 cps, 80 m down plunge of a prior 5.5 m at 21.4% U3O8 intercept. Additional holes RK-26-276 and RK-26-285 also delivered thick intervals of high-grade counts, supporting continuity at depth.
In 2026, NexGen has completed 12,758.2 m of a planned 42,000 m program, with 115 drill holes targeting PCE to date, 79 of which are mineralized and 54 classified as high-grade. A ~29,200 m summer drilling campaign is scheduled to start the week of May 25, 2026, alongside construction commencement at the flagship Rook I Project.
NexGen Energy Ltd. has changed its external auditor, moving from KPMG LLP to PricewaterhouseCoopers LLP after a competitive request for proposal process led by its audit committee. The board requested KPMG’s resignation and appointed PwC as successor auditor, both effective March 5, 2026.
KPMG’s reports on NexGen’s consolidated financial statements for the years ended December 31, 2025 and 2024 did not contain a modified opinion. The company reports there are no “reportable events” as defined in National Instrument 51-102 between NexGen and KPMG. Both KPMG and PwC have confirmed their agreement with the company’s change-of-auditor notice.
NexGen Energy has received final federal approval to build its 100%-owned Rook I uranium project in Saskatchewan. The Canadian Nuclear Safety Commission approved the Environmental Assessment and issued a Licence to Prepare Site and Construct, following earlier provincial approvals.
The company plans to start official construction in summer 2026, with a four-year build schedule. When in production, Rook I is designed to produce up to 30 million pounds of uranium per year, which the company states represents over 20% of current global uranium fuel supply and more than 50% of western world supply.
NexGen Energy Ltd. filed its Annual Report on Form 40-F, incorporating key governance and financial exhibits and signed on March 3, 2026.
The filing states 659,960,072 common shares outstanding as of the close of the period covered. It names KPMG LLP as the independent auditor and lists Exhibits 99.1–99.3 (AIF, MD&A, audited consolidated financial statements) among other certifications and consents.
NexGen Energy Ltd. filed a Form 6-K to share a news release announcing its 2025 fourth quarter conference call. The call will be held on Wednesday, March 4, 2026 at 8:30 a.m. Eastern Standard Time and will focus on the Company’s Rook I uranium project.
Founder and CEO Leigh Curyer, Chief Commercial Officer Travis McPherson, and CFO Benjamin Salter will discuss the recent Canadian Nuclear Safety Commission hearings, expansion at Patterson Corridor East, supporting infrastructure work, and upcoming milestones. NexGen also plans to file its Q4 2025 financial statements and MD&A on March 3 after North American markets close.
Barclays PLC reports beneficial ownership of 32,619,428 NexGen Energy common shares, representing 4.98% of the class. As of the event date, it has sole voting and dispositive power over 29,150,128 shares and shared voting and dispositive power over 3,469,300 shares.
The filing is made on a Schedule 13G/A basis, indicating the position is held in the ordinary course of business and not for the purpose of changing or influencing control of NexGen Energy Ltd. Barclays also lists Barclays Bank PLC, Barclays Capital Inc, and Barclays Capital Securities Ltd as relevant subsidiaries.
NexGen Energy Ltd. filed a Form 6-K highlighting its participation in Part 2 of the Canadian Nuclear Safety Commission Commission Hearing for Federal approval of its 100%-owned Rook I uranium project. Part 2 runs from February 9–12, 2026 and is described as the final step in the Federal regulatory approval process before a CNSC decision.
The four identified and verified potentially impacted Indigenous Nations in the Local Priority Area are speaking at the hearing and are described as providing unequivocal support for approval of the project and NexGen’s engagement approach. NexGen is presenting a video focused on its community programs and engagement principles, emphasizing education, training, mentorship, and health and wellness for local and Indigenous communities.