데니슨 광산 공사
US ˙ NYSEAM ˙ CA2483561072

SecurityDNN / Denison Mines Corp.
InstitutionRenaissance Technologies Llc
ManagerJames Simons
Latest Disclosed Ownership9,455,713 shares
Latest Disclosed Value $ 33,378,667
Renaissance Technologies Llc reports 275.03% increase in ownership of DNN / Denison Mines Corp.

On May 14, 2026 - Renaissance Technologies Llc filed a 13F-HR form disclosing ownership of 9,455,713 shares of Denison Mines Corp. (US:DNN) valued at $33,378,667 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 12, 2026 disclosing 2,521,313 shares of Denison Mines Corp.. This represents a change in shares of 275.03% during the quarter. The current value of the position is $28,650,810 USD.

Institutional Ownership: 13F and NPORT Filings

The Security and Class in the table below are shown exactly as filed by the investor. We do our best to track continuity of investments through acquisitions, and this will be reflected in the table as changes in names. In addition to descriptive data, performance of the investment is shown over time. To calculate quarterly performance, we first calculate cost basis of the shares purchased during the quarter, then use that to calculate gross profit. Quarterly return is Gross Profit / Starting Portfolio value.

Note that cost basis is calculated and stored in thousands, so small quarterly changes in shares frequently result in a cost basis of zero.

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Disclosed Equity Positions (from 13F/NPORT Filings)
File
Date		 Effective
Date		Form Security Class ID Avg Price
Paid (Est)		 Reported
Shares		 ΔShares ΔShares
(%)		 Reported
Value
(x1000)		 ΔValue
(%)		 Alloc
(%)		 ΔAlloc ΔAlloc (%) Cost Basis
(x1000)		 Unrealized
Gain/Loss
(x1000)
2026-05-14 2026-03-31 13F DENISON MINES COM 248356107 9,455,713 6,934,400 275.03 33,379 397.73 0.0522
2026-02-12 2025-12-31 13F DENISON MINES COM 248356107 2,521,313 -10,647,700 -80.85 6,707 -81.48 0.0104
2025-11-13 2025-09-30 13F DENISON MINES COM 248356107 13,169,013 8,016,612 155.59 36,215 286.20 0.0478
2025-08-13 2025-06-30 13F DENISON MINES COM 248356107 5,152,401 -6,924,521 -57.34 9,377 -40.27 0.0125
2025-05-14 2025-03-31 13F DENISON MINES COM 248356107 12,076,922 10,108,509 513.54 15,700 343.10 0.0238
2025-02-13 2024-12-31 13F DENISON MINES COM 248356107 1,968,413 1,968,413 3,543 0.0052
2024-08-09 2024-06-30 13F DENISON MINES COM 248356107 0 -89,400 -100.00 0 0.0000
2024-05-13 2024-03-31 13F DENISON MINES COM 248356107 89,400 -622,913 -87.45 0 -100.00 0.0003
2024-02-13 2023-12-31 13F DENISON MINES COM 248356107 712,313 712,313 1 0.0019
2023-08-11 2023-06-30 13F DENISON MINES COM 248356107 0 -650,760 -100.00 0 0.0000
2023-05-12 2023-03-31 13F DENISON MINES COM 248356107 650,760 257,247 65.37 1 0.0009
2023-02-13 2022-12-31 13F DENISON MINES COM 248356107 393,513 393,513 0 0.0006
2022-11-14 2022-09-30 13F DENISON MINES COM 248356107 0 -1,470,420 -100.00 0 -100.00
2022-08-12 2022-06-30 13F DENISON MINES COM 248356107 1,470,420 468,707 46.79 1,431 -10.73 0.0017
2022-05-13 2022-03-31 13F DENISON MINES COM 248356107 1,001,713 -4,557,512 -81.98 1,603 -78.96 0.0019
2022-02-11 2021-12-31 13F DENISON MINES COM 248356107 5,559,225 1,713,612 44.56 7,620 35.64 0.0095
2021-11-12 2021-09-30 13F DENISON MINES COM 248356107 3,845,613 3,845,613 5,618 0.0073
2021-05-13 2021-03-31 13F DENISON MINES COM 248356107 0 -776,500 -100.00 0 -100.00
2021-02-10 2020-12-31 13F DENISON MINES COM 248356107 776,500 592,000 320.87 502 569.33 0.0005
2020-11-13 2020-09-30 13F DENISON MINES COM 248356107 184,500 184,500 -76.24 75 -85.06 0.0001
2019-11-13 2019-09-30 13F DENISON MINES COM 248356107 0 -90,100 -100.00 0 -100.00
2019-08-12 2019-06-30 13F DENISON MINES COM 248356107 90,100 -198,900 -68.82 48 -68.00 0.0000
2019-05-14 2019-03-31 13F DENISON MINES COM 248356107 289,000 37,100 14.73 150 28.21 0.0001
2019-02-12 2018-12-31 13F DENISON MINES COM 248356107 251,900 -313,800 -55.47 117 -68.88 0.0001
2018-11-13 2018-09-30 13F DENISON MINES COM 248356107 565,700 211,499 59.71 376 113.64 0.0004
2018-08-13 2018-06-30 13F/A-1 DENISON MINES COM 248356107 354,201 354,201 -37.39 176 -53.19 0.0002
2017-11-13 2017-09-30 13F DENISON MINES COM 248356107 0 -313,200 -100.00 0 -100.00
2017-08-11 2017-06-30 13F DENISON MINES COM 248356107 313,200 -206,500 -39.73 135 -57.94 0.0002
2017-05-12 2017-03-31 13F DENISON MINES COM 248356107 519,700 395,400 318.10 321 401.56 0.0004
2017-02-13 2016-12-31 13F DENISON MINES COM 248356107 124,300 -64,040 -34.00 64 -27.27 0.0001
2016-11-14 2016-09-30 13F DENISON MINES COM 248356107 188,340 117,774 166.90 88 125.64 0.0002
2016-08-12 2016-06-30 13F DENISON MINES COM 248356107 70,566 -940,934 -93.02 39 -93.15 0.0001
2016-05-13 2016-03-31 13F DENISON MINES COM 248356107 1,011,500 844,000 503.88 569 569.41 0.0011
2016-02-11 2015-12-31 13F DENISON MINES COM 248356107 167,500 167,500 85 0.0002
Legend
Shares
The total number of shares held by the institution at the end of the reporting period (the effective date). This is provided in the filing.
Value
The total value of the shares as of the effective date. This is provided in the filing.
Avg. Share Price
The weighted average share price of the shares held by the institution. We use FIFO accounting to determine this price
Class
This is the security class as indicated by the filer. There are a variety of values for this field. Common values include "EC" = equity common, "EP" - equity preferred
Allocation (%)
The percent of the institution's portfolio that this position represents. This is provided in NPORT filings. For 13F filings, we calculate it.
Change in Allocation
The change in allocation from the prior reporting period. This is calculated as current allocation - prior allocation.
Change in Allocation (%)
The percent change in allocation from the prior reporting period. This is calculated as (current allocation - prior allocation) / prior allocation.
Cost Basis
The total cost of the shares held. This is calculated as reported shares * avg. share price
Unrealized Gain/Loss
This is the market value of the position as of the effective date minus the cost basis.