DENISON MINES CORP. SEC Filings

Denison Mines Corp. reports Q2 2026 results highlighted by advancement of its flagship Phoenix in-situ recovery uranium mine at Wheeler River. Following a February 2026 final investment decision and receipt of key permits, site preparation is substantially complete, critical civil works are underway, and full-scale construction began in July.

Liquidity remains strong with cash and cash equivalents of $465.3 million and working capital of $521.4 million as of June 30, 2026. The company generated Q2 net income of $25.6 million, driven by a large fair value gain on convertible note derivatives, but posted a six‑month net loss of $89.3 million, reflecting operating, evaluation and financing costs, including $60.1 million in net finance expense year‑to‑date.

Denison monetized part of its strategic uranium holdings, selling 750,000 lbs U₃O₈ in Q2 for proceeds of $91.6 million at $122.16/lb, realizing a reported 233% gain versus its 2021 acquisition cost. It still holds physical uranium valued at $114.4 million plus McClean Lake inventory and has contracts to sell 600,000 lbs between Q3 2026 and Q2 2027. Total assets were $1.11 billion, with total equity of $288.9 million and long‑term liabilities of $764.0 million, largely the 2031 convertible notes.

Denison Mines Corp. reports that work at its Phoenix In-Situ Recovery (ISR) uranium mine, part of the Wheeler River project in Saskatchewan, has moved from site preparation to full-scale construction, including the start of installation of the Phase 1 perimeter freeze wall.

Early works since March 2026 have completed substantial site clearing, schedule-sensitive civil works and construction management facilities. Temporary camp facilities have boosted accommodation capacity at Wheeler River to nearly 400 people. The company estimates that over 20% of overall site civil work is complete and civil subgrade work for the process plant and wellfield areas is near 100%, ahead of schedule-critical concrete pours expected to begin in August and around-the-clock activity with a second shift.

Wheeler River, described as the largest undeveloped uranium project in the eastern Athabasca Basin, is a joint venture between Denison (90%, operator) and JCU (10%), with Denison holding an effective 95% interest. The Phoenix ISR operation received provincial Environmental Assessment approval in July 2025 and federal Environmental Assessment approval plus a construction licence in February 2026, enabling full-scale construction to commence in July 2026.

Denison Mines Corp. reports that Peter Ballantyne Cree Nation has withdrawn its judicial review application challenging the provincial Environmental Assessment approval for the Phoenix in-situ recovery uranium mine. Following further engagement, PBCN has formally provided its consent to and support for development and operation of the Wheeler River Project in northern Saskatchewan.

The release outlines Wheeler River as Denison’s flagship uranium asset, hosting the high-grade Phoenix and Gryphon deposits in a joint venture where Denison holds a 90% interest and acts as operator, with JCU holding 10%. Regulatory milestones include Environmental Assessment approvals by Saskatchewan in July 2025 and by the Canadian Nuclear Safety Commission, along with a construction licence, in February 2026.

Site preparation and early works construction for Phoenix began in March 2026, with first production targeted for 2028. Denison also highlights extensive additional interests in the Athabasca Basin region, including stakes in the McClean Lake and Midwest joint ventures and the Tthe Heldeth Túé and Huskie deposits, plus a 50% interest in JCU and a ~457,000-hectare land position.

Global X Management Company LLC reports beneficial ownership of 63,782,091 common shares of Denison Mines Corp., representing 7.07% as of 03/31/2026.

The filing (Amendment No. 4 to a Schedule 13G) states GXMC has sole voting and sole dispositive power over 63,782,091 shares. The filing notes that interests of the Global X Uranium ETF relate to more than 5.00% of the class. The Schedule is signed by Ryan O'Connor on 05/15/2026.

Denison Mines is moving from planning to building its Phoenix in-situ recovery uranium mine at Wheeler River after receiving final federal and provincial approvals and making a Final Investment Decision. Full-scale construction is expected to ramp up by late Q2 2026 with a roughly two‑year build toward first production around mid‑2028.

For the quarter ended March 31, 2026, Denison reported toll milling revenue of $1.1 million and a net loss of $114.9 million, driven mainly by a $108.4 million non‑cash fair value loss on embedded derivatives in its US$345 million convertible notes. Basic and diluted loss per share was $0.13.

Liquidity remains strong, with $418.5 million in cash and cash equivalents and $198.6 million invested in 1.7 million pounds of physical uranium as of March 31, 2026. Initial post‑FID capital for Phoenix is estimated at $600 million (100% basis), while the project’s updated after‑tax NPV at an 8% discount rate is about $1.57 billion, implying robust projected economics.

To help finance Phoenix, Denison has committed sales for 1.35 million pounds of U3O8 for delivery from Q2 2026 to Q2 2027 and has firm and advanced‑negotiation commitments totaling roughly 16 million pounds over the expected mine life. The company also continues to advance long‑lead procurement, with about $165.7 million in capital purchases committed on a 100% basis.

Denison Mines Corp. has provided its 2026 management information circular and notice for the annual general meeting of shareholders. The meeting will be held at 11:30 a.m. Eastern Time on May 12, 2026 at the company’s Toronto head office, with strong encouragement to vote in advance.

Shareholders will elect eight directors, vote on re-appointing KPMG LLP as auditor, and cast a non-binding advisory vote on the company’s executive compensation approach. The circular details Denison’s governance structure, board independence, diversity initiatives, Indigenous engagement framework, executive and director compensation, and risk and climate oversight practices.

Van Eck Associates Corporation reports ownership of 89,941,276 common shares of Denison Mines Corp., representing 10.02% of the class as shown in this Schedule 13G/A (Amendment No. 3). The filing states VanEck's VanEck Uranium and Nuclear ETF has the right to receive dividends and proceeds for 73,093,952 of those shares. The filing lists voting and dispositive power as sole for 89,941,276 shares and is signed by an Assistant Vice President on 04/02/2026.

Denison Mines Corp. filed a Form 6-K detailing a Fourteenth Amending Agreement to its fourth amended and restated credit agreement with The Bank of Nova Scotia and other lenders. The amendment extends the credit facility maturity date to January 31, 2027 and updates key financial definitions and covenants.

The agreement introduces a new definition of Adjusted Tangible Net Worth, which adjusts tangible net worth to remove IFRS accounting values for the company’s Convertible Unsecured Note Indebtedness and replace them with the notes’ face value translated into Canadian dollars. The parent must maintain consolidated Adjusted Tangible Net Worth of at least $131,000,000.

The amendment becomes effective once the lenders’ administrative agent receives a $25,000 non-refundable extension fee, corporate approvals, legal opinions, and share certificates as required. All existing security interests are confirmed as continuing in full force and effect under the amended credit agreement.

Denison Mines Corp. has filed its 2025 Annual Report on Form 40-F with the U.S. Securities and Exchange Commission. The filing includes the company’s annual information form, management discussion and analysis, and audited financial statements for the year ended December 31, 2025.

The Form 40-F is available on Denison’s website and on the SEC’s EDGAR system, while the annual information form is also accessible on SEDAR+. Security holders can request a free printed copy of the Form 40-F, including audited financial statements, by email or mail.

The press release also outlines Denison’s uranium portfolio in Saskatchewan’s Athabasca Basin, including a 95% interest in the Wheeler River project, completed feasibility and pre-feasibility studies for the Phoenix and Gryphon deposits, recent environmental assessment approvals and a Construction Licence for Phoenix, and ownership interests in several nearby deposits and joint ventures.