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DENISON MINES CORP.

TSX:DMLLSE:0URYUS:DNN
C$3.66Close 7 Oct 2026 · delayed

Past year: ▼ 18%(3.60 – 5.68 CAD)

Market cap
—
Shares on issue
0
Story beats
38 since 2000
Last event
10 Oct 2025

Announcements, explained

Each one in plain English, with the numbers worked through for a shareholder.

12 Feb 2016drilling result▲ GoodMajor

WR-633D1, 100 metres north of Gryphon, cut about 11 metres of basement-hosted mineralization including 5.7% uranium oxide over 1.0 metre and 6.3% over 1.7 metres - the deposit is not closed off to the north.

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7 Jan 2016other● Neutral

Set out the 2016 plan: about C$16.9 million of Canadian exploration and evaluation spending against US$5.4 million of expected revenue from the McClean Lake mill and uranium sales. Toll milling at McClean Lake, not the deposits, is what brings money in.

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18 Dec 2015resource reserve update● Neutral

The independent technical report covering both Wheeler River deposits after the Gryphon estimate, prepared by Roscoe Postle Associates and effective 25 November 2015.

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2 Dec 2015asset acquisition disposition▼ BadMajor

The Mongolian licences were not granted, the July agreement did not close, and the deal was rewritten: Denison took US$1.25 million on closing plus rights to up to US$12 million from later sales, for total consideration of US$13.25 million instead of US$20 million. A permitting failure by a government cut a third off the price of an asset already agreed sold.

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12 Nov 2015other material event● Neutral

The material change report for the initial Gryphon resource estimate.

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3 Nov 2015resource reserve update▲ GoodMajor

The first resource estimate for Gryphon added 43.0 million lb of inferred uranium oxide to Wheeler River, alongside Phoenix's 70.2 million lb indicated. Eighteen months after the discovery hole, Wheeler River holds two deposits instead of one.

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23 Oct 2015drilling result▲ Good

Completed the 2015 summer programme: 24,468 metres in 34 holes at Wheeler River, expanding Gryphon and adding a new zone at Murphy Lake.

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21 Oct 2015other material event● Neutral

The material change report covering both the collapse of the Fission merger and Lundin's appointment as executive chairman.

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14 Oct 2015director officer appointment● NeutralMajor

The day after the merger failed, Lukas Lundin took over as executive chairman, with Ron Hochstein standing down from that role but staying on the board. David Cates remains president and chief executive.

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13 Oct 2015material agreement termination▼ BadMajor

Denison and Fission terminated their arrangement agreement after Fission shareholders' proxies fell short of the required two-thirds approval, though a majority of the Fission shares voted were in favour. Denison's shareholders strongly supported it, and the October 14 meetings were cancelled.

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7 Aug 2015other material event● Neutral

The full arrangement agreement of 27 July 2015 for the Fission Uranium merger.

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31 July 2015asset acquisition disposition▲ GoodMajor

Agreed to sell its 85% Gurvan Saihan joint venture interest in Mongolia to Uranium Industry a.s. of the Czech Republic for US$20 million: US$250,000 on closing and US$19.75 million by 30 November 2015. The deferred payment was guaranteed if mining licences for four projects were granted by then; otherwise the shares would return to Denison unless Uranium Industry chose to pay.

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30 July 2015drilling result▲ Good

Finished definition drilling at Gryphon just over a year after discovering it, and found uranium mineralization at Murphy Lake.

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28 July 2015business combination● NeutralMajor

Signed the definitive arrangement agreement, replacing July's letter agreement, with shareholder votes at both companies to follow.

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15 July 2015other material event● Neutral

The binding letter agreement itself, under which Denison would acquire all of Fission Uranium's shares.

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7 July 2015business combination● NeutralMajor

Agreed in principle to merge with Fission Uranium, offering 1.26 Denison shares per Fission share for a company to be renamed Denison Energy Corp and owned roughly half by each side's holders. It would have joined Fission's 100%-owned Patterson Lake South project to Denison's 60% of Wheeler River.

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18 Aug 2014capital raising announcement● Neutral

Closed the flow-through placement at C$14,997,150 - 9,257,500 shares through a syndicate led by Dundee Securities, more than the C$13 million announced in July.

What it means for a shareholder

9.3m new shares at about C$1.62 to raise about C$15.0m. Shares on issue before the raise aren't in the record, so the dilution can't be worked out.

Create a free account to see this worked out for your own holding.

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30 July 2014capital raising announcement▲ Good

One filing, two facts: a C$13 million bought-deal flow-through placement, and the first ten holes of the 2014 summer programme at Gryphon, stepping out 50 metres at a time down dip and along strike from the discovery.

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14 July 2014resource reserve update● Neutral

The independent technical report supporting the 70.2 million lb Phoenix estimate.

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19 June 2014resource reserve update▲ GoodMajor

Reported assays from the Gryphon zone at Wheeler River, with drill hole WR-560 returning 21.2% U3O8 over 4.5 metres and WR-556 returning 15.3% over 4.0 metres. Planned 21,000 metres of summer drilling, 14,000 metres of it at Wheeler River.

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7 Apr 2014drilling result▲ GoodMajor

The first follow-up hole at Gryphon, WR-560, returned 17.3% uranium oxide over 4.2 metres, confirming the discovery two weeks after it was announced. The same filing carries the annual meeting circular and the chairman's letter to shareholders.

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4 Apr 2014drilling result▲ GoodMajor

A new discovery: WR-556, 3 km northwest of Phoenix at the K North target, cut 9.7% uranium oxide over 4.6 metres in the basement rock. The zone was named Gryphon and became the second deposit at Wheeler River.

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28 Feb 2014drilling result▲ GoodMajor

High-grade intersections at Zone A of Phoenix, best of them 29.6% uranium oxide over 6.5 metres in WR-548. The release sets out the ownership that mattered for the next five years: Denison operator with 60%, Cameco 30% and JCU 10%.

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23 Dec 2013farm in farm out agreement● Neutral

Optioned the Jasper Lake property - 18 claims over 45,271 hectares, 40 km east of the Cigar Lake mine - to Strateco Resources, which can earn up to 60% by funding work. Denison keeps its ground working without spending its own money.

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10 Dec 2013business combination● NeutralMajor

Took up about 104.85 million Rockgate Capital shares, roughly 89% of the company, under its takeover offer, which has now expired. It said it would acquire the remaining shares through a plan of arrangement on the same terms.

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18 Sept 2013resource reserve update● Neutral

The independent technical report on the Mutanga project in Zambia - the last substantial disclosure on the African assets before they were sold.

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17 Sept 2013resource reserve update● Neutral

The independent technical report on the J Zone uranium deposit at Waterbury Lake, the main asset acquired with Fission Energy.

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10 Sept 2013business combination● Neutral

An amended and restated version of the Fission Energy business acquisition report, filed three weeks after the original.

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20 Aug 2013business combination● Neutral

The formal business acquisition report for the Fission Energy purchase completed on 26 April 2013.

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23 May 2013business combination▲ GoodMajor

Closed the Fission Energy acquisition on 26 April 2013, taking Fission's 60% of the Waterbury Lake project and its other eastern Athabasca interests. The same filing carries first-quarter results, a C$13 million bought-deal flow-through placement of 10,000,000 shares, and the annual election of directors.

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