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Denison Mines (DNN)

Denison Mines on one page: short interest, daily short volume, fails to deliver, large holders and 13F holders. Listed on NYSE, classified by the SEC as miscellaneous metal ores.

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90.9M

Short interest

settlement 2026-09-30

3.7

Days to cover

-0.1 days vs prior

41.9%

Short share of volume

2026-10-12

5,000

Fails to deliver

settlement 2026-09-14

As of 2026-10-12.

Short interest

FINRA, twice a month. The newest 24 settlements in the table, 48 in the chart. JSON

As of 30 September 2026, short interest in DNN is 90,897,710 shares, down 439,486 shares over the last month. Over the last 48 readings it ranged from 41,316,555 shares (31 October 2024) to 109,977,560 shares (29 August 2025). At the reported average volume of 24.7M shares a day that is 3.7 days to cover.

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SettlementShares shortChangeAvg daily volumeDays to cover
2026-09-3090,897,710+0.1%24,705,2493.68
2026-09-1590,823,986-0.6%23,843,9153.81
2026-08-3191,337,196+19.4%29,983,1793.05
2026-08-1476,506,050-0.5%22,116,9153.46
2026-07-3176,892,002+2.2%23,818,6833.23
2026-07-1575,220,202+6.4%25,102,0713.00
2026-06-3070,681,958+0.1%26,443,0162.67
2026-06-1570,622,298-4.7%24,664,3122.86
2026-05-2974,129,723+2.2%22,046,5283.36
2026-05-1572,508,533+1.1%23,380,4243.10
2026-04-3071,717,136-5.3%21,293,9353.37
2026-04-1575,704,530+3.5%29,561,9442.56
2026-03-3173,123,067+1.0%46,715,6141.57
2026-03-1372,409,479+3.4%43,591,2791.66
2026-02-2770,044,908+0.3%40,012,0321.75
2026-02-1369,824,247-1.7%50,151,3471.39
2026-01-3071,006,250+5.7%60,655,2671.17
2026-01-1567,199,802-0.4%51,955,4601.29
2025-12-3167,442,257-2.5%33,604,5152.01
2025-12-1569,204,201-5.1%43,646,6861.59
2025-11-2872,925,241-17.4%56,743,4831.29
2025-11-1489,434,410-2.2%72,972,3751.23
2025-10-3191,434,734-3.0%92,319,0821.00
2025-10-1594,277,845-5.3%120,541,7221.00

Daily short volume

FINRA Reg SHO, the last 30 sessions. JSON

As of 12 October 2026, the short share of DNN volume is 41.9%, down 19.2 points over the last five sessions. Over the last 30 readings it ranged from 35.1% (31 August 2026) to 69.7% (14 September 2026). The latest reading is 10.9 points below the 30-session average of 52.8%, on 6.3M shares reported.

DateShort volumeTotal volumeShort shareExempt
2026-10-122.7M6.3M41.9%1,900
2026-10-095.3M11.9M44.7%43,002
2026-10-0816.9M34.2M49.5%268,011
2026-10-078.4M13.1M63.9%25,173
2026-10-0617.8M30.2M58.8%112,200
2026-10-0511.5M18.8M61.1%43,501
2026-10-0213.6M21.2M64.1%51,136
2026-10-014.6M11.3M41.0%15,050
2026-09-309.1M20.9M43.5%37,598
2026-09-296.1M12.5M49.1%19,441
2026-09-284.1M10.3M39.9%33,659
2026-09-258.7M20.3M43.0%75,047
2026-09-247.6M18.2M41.9%85,419
2026-09-234.4M11.0M40.1%58,811
2026-09-224.4M10.4M42.1%84,540
2026-09-212.6M7.2M37.0%19,300
2026-09-186.5M11.3M57.6%17,954
2026-09-176.2M9.2M67.0%12,496
2026-09-165.8M11.3M50.8%25,632
2026-09-158.4M14.1M59.9%107,256
2026-09-149.9M14.2M69.7%30,649
2026-09-117.2M10.6M67.6%26,347
2026-09-105.7M10.0M56.9%12,631
2026-09-098.7M14.1M61.6%35,057
2026-09-088.7M14.9M58.1%8,397
2026-09-046.6M10.2M64.9%510
2026-09-0311.3M17.8M63.4%17,148
2026-09-027.1M12.1M58.5%45,349
2026-09-016.6M12.7M52.1%34,405
2026-08-314.8M13.8M35.1%35,048

Fails to deliver

SEC, the last 30 settlement dates with a fail. JSON

As of 14 September 2026, the fails-to-deliver balance in DNN is 5,000 shares, down 197,272 shares over the last settlement date. Over the last 30 readings it ranged from 90 shares (17 August 2026) to 724,607 shares (29 July 2026). The latest reading sits at the bottom of that range.

SettlementShares failedPriceValue
2026-09-145,000$3.02$15K
2026-09-11202,272$3.23$653K
2026-09-10528,490$3.35$1.8M
2026-09-08127,887$3.42$437K
2026-09-0430,765$3.41$105K
2026-09-031,100$3.22$4K
2026-09-0227,240$3.20$87K
2026-09-014,194$3.39$14K
2026-08-31445,678$3.39$1.5M
2026-08-2723,788$3.63$86K
2026-08-2613,600$3.72$51K
2026-08-25704,640$3.54$2.5M
2026-08-2423,975$3.50$84K
2026-08-2152,631$3.14$165K
2026-08-20300$3.22$966
2026-08-19448$3.15$1K
2026-08-18334,861$3.19$1.1M
2026-08-1790$3.23$291
2026-08-1432,656$3.26$106K
2026-08-1338,776$3.29$128K
2026-08-1276,419$3.31$253K
2026-08-11168,928$3.26$551K
2026-08-1024,885$3.22$80K
2026-08-0752,015$3.13$163K
2026-08-06192,169$3.09$594K
2026-08-042,044$2.88$6K
2026-08-03108,959$2.81$306K
2026-07-31113,263$2.92$331K
2026-07-30140,531$2.69$378K
2026-07-29724,607$2.75$2.0M

Large holders (13D and 13G)

One row per reporting person with its latest filing, newest first. JSON

2 holders report 5% or more of DNN in their latest filing, all on Schedule 13G (passive). The largest reported stake is Van Eck Associates Corporation at 9.7% of the class (87,521,620 shares), filed 2026-08-14 for an event on 2026-06-30.

FiledFormHolderSharesOf classEvent
2026-08-1413G/Ano. 4Van Eck Associates Corporationinvestment adviser87.5M9.7%2026-06-30
2026-05-1513G/Ano. 4Global X Management CO LLCinvestment adviser63.8M7.1%2026-03-31

13F holders

Tracked managers holding DNN at their latest 13F. JSON

6 of the 30 tracked managers held DNN at their latest 13F, $71.9M in total at quarter-end prices. Renaissance Technologies is the largest at $29.1M (0.0% of its portfolio) as of 2026-06-30. Over the prior quarter 2 added shares and 4 cut.

FundQuarterSharesValueOf portfolioChange in shares
Renaissance Technologies2026-06-309.5M$29.1M0.04%+43K
Two Sigma Investments2026-06-306.2M$18.9M0.01%-5.1M
Citadel Advisors2026-06-305.4M$16.5M0.00%-2.5M
Millennium Management2026-06-301.6M$4.9M0.00%-4.2M
Bridgewater Associates2026-06-30636K$1.9M0.01%+54K
D. E. Shaw & Co.2026-06-30207K$635K0.00%-264K

Only the 30 tracked managers on the funds hub; a 13F reports long positions in US listed stock at quarter end, 45 days late, and says nothing about shorts or positions sold since.

What this page is

Denison Mines in the regulatory record

Regulators publish company data in separate files that never sit next to each other: FINRA's twice-monthly short interest, its daily short sale volume, the SEC's fails-to-deliver counts, and each insider's Form 4. A company page puts those series for one ticker on one URL, with planned sales, large holders, 13F holders and financials beside them, so the short position, the daily flow, the settlement fails and what insiders are doing can be read together.

Each section has its own history table, a one-line summary of the latest figures and its own JSON and CSV links, and says when its source last updated.

This page follows Denison Mines (DNN), SEC CIK 1063259, listed on NYSE, classified by the SEC as miscellaneous metal ores. The cross-market tables live on the short interest and insider transactions hubs.

Source and updates

Short interest
FINRA consolidated short interestSource: FINRA.Twice a month, about eight business days after settlement. Latest 2026-09-30.JSON and CSV
Daily short volume
FINRA Reg SHO daily filesSource: FINRA.Every trading day, the morning after FINRA posts it. Latest 2026-10-12.JSON and CSV
Fails to deliver
SEC fails-to-deliver dataSource: SEC.Twice a month, a few weeks after the half month ends. Latest 2026-09-14.JSON and CSV
Large holders
SEC EDGAR Schedule 13D and 13GSource: SEC.New filings appear shortly after the SEC posts them. A 13D is due within five business days of crossing 5%; a 13G follows the passive schedule. Latest 2026-08-14.JSON and CSV
13F holders
SEC EDGAR Form 13F-HRSource: SEC.Quarterly, filed within 45 days of quarter end; 30 tracked managers. Latest 2026-06-30.JSON and CSV
Company record
EDGAR filing index for CIK 1063259Ticker, name and exchange from the SEC's company list, refreshed weekly.
Rate limits
10 requests a minute without a key, 30 with a free key from a free account.

How to read it

  • Read the position against the flow: rising short interest with a high daily short share is new shorting; rising short interest with a normal short share is old shorts holding on.
  • Insider buys next to a large short position are rare and stand out; insider sells next to one are common and mean little.
  • Fails to deliver matter relative to the float, not in absolute shares; a million failed shares in a mega cap is noise.

Analysis of what the data shows, not advice. XOOMAR does not recommend buying, selling or holding anything.

Other companies the SEC classifies as miscellaneous metal ores

Other company pages

Datasets

Frequently Asked Questions

How much of DNN is sold short?
90,897,710 shares were held short at the 2026-09-30 settlement, 3.7 days of average volume. FINRA publishes the next count about eight business days after the 15th and the last business day of the month.
What is DNN's daily short volume?
On 2026-10-12, 2,660,573 of the 6,347,582 DNN shares reported to FINRA were sold short, 41.9% of the day's reported volume. Short volume is a flow for one day, not a position.
Does DNN have fails to deliver?
The SEC's latest file shows 5,000 DNN shares failed to deliver at settlement 2026-09-14. Fails are reported per settlement date and published twice a month with a lag.
Are DNN insiders buying or selling?
No Form 4 filings for DNN are on record.
Who owns 5% or more of DNN?
2 holders report 5% or more of DNN in their latest filing, all on Schedule 13G (passive). The largest reported stake is Van Eck Associates Corporation at 9.7% of the class (87,521,620 shares), filed 2026-08-14 for an event on 2026-06-30.
Which tracked 13F managers own DNN?
6 of the 30 tracked 13F managers held DNN shares at their latest filing, $71.9M in all. The largest: Renaissance Technologies (9.5M shares, $29.1M), Two Sigma Investments (6.2M shares, $18.9M), Ken Griffin's Citadel Advisors (5.4M shares, $16.5M), Izzy Englander's Millennium Management (1.6M shares, $4.9M), Ray Dalio's Bridgewater Associates (636K shares, $1.9M), D. E. Shaw & Co. (207K shares, $635K).

Data on this page is provided for informational purposes only and is not financial advice. See our editorial policy.