Cameco (CCJ)

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

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7.9M

Short interest

settlement 2026-09-30

2.5

Days to cover

-1.2 days vs prior

66.5%

Short share of volume

2026-10-09

3,961

Fails to deliver

settlement 2026-09-09

As of 2026-10-09.

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 CCJ is 7,893,114 shares, down 609,695 shares over the last month. Over the last 48 readings it ranged from 5,166,535 shares (13 March 2026) to 19,428,479 shares (28 February 2025). At the reported average volume of 3.2M shares a day that is 2.5 days to cover.

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Settlement	Shares short	Change	Avg daily volume	Days to cover
2026-09-30	7,893,114	-9.0%	3,196,180	2.47
2026-09-15	8,674,085	+2.0%	2,344,954	3.70
2026-08-31	8,502,809	+4.9%	2,957,499	2.87
2026-08-14	8,104,615	+13.8%	2,715,303	2.98
2026-07-31	7,121,402	-2.9%	4,231,558	1.68
2026-07-15	7,333,887	+10.2%	3,534,863	2.07
2026-06-30	6,656,076	-2.3%	2,865,517	2.32
2026-06-15	6,814,425	+10.0%	3,788,347	1.80
2026-05-29	6,195,559	+3.2%	2,872,212	2.16
2026-05-15	6,003,532	+3.8%	3,335,040	1.80
2026-04-30	5,783,373	+5.2%	3,217,905	1.80
2026-04-15	5,497,603	+1.1%	2,585,766	2.13
2026-03-31	5,439,953	+5.3%	3,329,376	1.63
2026-03-13	5,166,535	-5.0%	4,349,561	1.19
2026-02-27	5,440,619	+5.1%	3,284,069	1.66
2026-02-13	5,177,675	-23.5%	5,064,667	1.02
2026-01-30	6,768,094	-4.0%	5,259,376	1.29
2026-01-15	7,051,072	+4.1%	4,406,619	1.60
2025-12-31	6,775,832	-8.9%	2,753,206	2.46
2025-12-15	7,434,850	+10.0%	3,462,180	2.15
2025-11-28	6,756,305	-0.5%	4,789,139	1.41
2025-11-14	6,975,408	-17.3%	4,901,784	1.42
2025-10-31	8,431,570	-28.1%	6,836,588	1.23
2025-10-15	11,735,068	-10.5%	5,112,678	2.30

Daily short volume

FINRA Reg SHO, the last 30 sessions. JSON

As of 9 October 2026, the short share of CCJ volume is 66.5%, up 25.6 points over the last five sessions. Over the last 30 readings it ranged from 21.3% (2 September 2026) to 66.5% (9 October 2026). The latest reading sits at the top of that range. The latest reading is 21.3 points above the 30-session average of 45.2%, on 791K shares reported.

Date	Short volume	Total volume	Short share	Exempt
2026-10-09	526K	791K	66.5%	1,983
2026-10-08	874K	1.5M	58.5%	2,687
2026-10-07	825K	1.6M	50.4%	3,168
2026-10-06	1.2M	2.3M	49.9%	10,471
2026-10-05	560K	1.2M	45.1%	154
2026-10-02	458K	1.1M	40.9%	552
2026-10-01	676K	2.0M	34.1%	786
2026-09-30	600K	1.2M	51.0%	400
2026-09-29	290K	783K	37.0%	523
2026-09-28	540K	1.2M	45.8%	670
2026-09-25	330K	807K	40.9%	17
2026-09-24	422K	1.5M	28.7%	567
2026-09-23	478K	907K	52.7%	157
2026-09-22	613K	1.2M	49.2%	2,566
2026-09-21	534K	1.2M	44.7%	0
2026-09-18	1.8M	3.1M	58.0%	529
2026-09-17	396K	894K	44.3%	6,911
2026-09-16	427K	831K	51.4%	1,046
2026-09-15	388K	883K	44.0%	236
2026-09-14	687K	1.1M	60.0%	579
2026-09-11	533K	820K	65.0%	18
2026-09-10	344K	702K	48.9%	4
2026-09-09	235K	630K	37.3%	7,601
2026-09-08	421K	940K	44.8%	33
2026-09-04	298K	606K	49.2%	13
2026-09-03	349K	1.0M	34.0%	1,444
2026-09-02	260K	1.2M	21.3%	3,341
2026-09-01	348K	958K	36.3%	312
2026-08-31	309K	1.2M	25.9%	0
2026-08-28	672K	1.6M	41.0%	2,612

Fails to deliver

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

As of 9 September 2026, the fails-to-deliver balance in CCJ is 3,961 shares, up 3,200 shares over the last settlement date. Over the last 30 readings it ranged from 2 shares (5 August 2026) to 444,755 shares (22 July 2026). The latest reading sits at the bottom of that range.

Settlement	Shares failed	Price	Value
2026-09-09	3,961	$101.97	$404K
2026-09-08	761	$100.74	$77K
2026-09-03	35,686	$96.38	$3.4M
2026-09-02	35,686	$96.26	$3.4M
2026-08-31	24,443	$100.01	$2.4M
2026-08-27	2,040	$107.36	$219K
2026-08-25	3,479	$102.27	$356K
2026-08-24	64,195	$102.51	$6.6M
2026-08-21	5,817	$95.59	$556K
2026-08-20	28	$97.98	$3K
2026-08-19	372	$96.03	$36K
2026-08-18	23,178	$98.58	$2.3M
2026-08-17	192	$97.74	$19K
2026-08-10	13,745	$97.39	$1.3M
2026-08-05	2	$93.09	$186
2026-07-31	54,427	$88.23	$4.8M
2026-07-30	29,313	$84.57	$2.5M
2026-07-29	43,931	$86.96	$3.8M
2026-07-27	100	$87.86	$9K
2026-07-24	29,841	$89.33	$2.7M
2026-07-22	444,755	$88.68	$39.4M
2026-07-21	847	$84.85	$72K
2026-07-20	3,715	$85.62	$318K
2026-07-17	972	$87.36	$85K
2026-07-13	500	$95.99	$48K
2026-07-10	200	$95.74	$19K
2026-07-07	342	$97.50	$33K
2026-07-06	101	$96.54	$10K
2026-07-02	45,218	$97.39	$4.4M
2026-06-30	3,436	$103.47	$356K

Planned sales (Form 144)

Newest first. JSON

7 Form 144 notices on file for CCJ worth $14.4M at the prices reported; 0 in the last 90 days worth $0. Latest: Mooney Ronald Liam filed on 2026-03-24 to sell 2,000 shares ($216K) from 2026-03-24.

Filed	Seller	Shares	Market value	Of outstanding	Sale from	Broker
2026-03-24	Mooney Ronald LiamOfficer	2K	$216K	0.000%	2026-03-24	Solium Financial Inc.
2026-01-07	Gitzel Timothy S.Officer	25K	$2.6M	0.006%	2026-01-07	Solium Financial Inc.
2026-01-05	Mooney Ronald LiamOfficer	4K	$401K	0.001%	2026-01-05	Solium Financial Inc.
2026-01-05	Aitken Lisa LoreneOfficer	1K	$100K	0.000%	2026-01-05	Solium Financial Inc.
2026-01-02	Gitzel Timothy S.Officer	50K	$4.9M	0.011%	2026-01-02	Solium Financial Inc.
2025-12-19	Gitzel Timothy S.Officer	50K	$4.5M	0.011%	2025-12-19	Solium Financial Inc.
2025-09-17	Shockey HeidiOfficer	19K	$1.7M	0.004%	2025-09-15	Solium Financial Inc.

Large holders (13D and 13G)

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

1 holder reports 5% or more of CCJ in its latest filing, on Schedule 13G (passive). The holder is BlackRock, Inc. at 5.0% of the class (21,875,115 shares), filed 2026-07-27 for an event on 2026-06-30.

Filed	Form	Holder	Shares	Of class	Event
2026-07-27	13G	BlackRock, Inc.parent holding company	21.9M	5.0%	2026-06-30

13F holders

Tracked managers holding CCJ at their latest 13F. JSON

9 of the 30 tracked managers held CCJ at their latest 13F, $398.1M in total at quarter-end prices. D. E. Shaw & Co. is the largest at $188.8M (0.1% of its portfolio) as of 2026-06-30. Over the prior quarter 4 added shares and 5 cut.

Fund	Quarter	Shares	Value	Of portfolio	Change in shares
D. E. Shaw & Co.	2026-06-30	1.9M	$188.8M	0.09%	+1.0M
Renaissance Technologies	2026-06-30	650K	$66.2M	0.09%	-34K
Millennium Management	2026-06-30	423K	$43.0M	0.02%	+387K
Citadel Advisors	2026-06-30	390K	$39.7M	0.00%	-56K
ARK Investment Management	2026-06-30	362K	$36.8M	0.24%	-6K
AQR Capital Management	2026-06-30	125K	$12.7M	0.00%	+56K
Two Sigma Investments	2026-06-30	94K	$9.6M	0.01%	-114K
Soros Fund Management	2026-06-30	7K	$720K	0.01%	new
Fisher Asset Management	2026-06-30	5K	$484K	0.00%	-2K

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

Cameco 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 Cameco (CCJ), SEC CIK 1009001, 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 2026-10-09.JSON and CSV
Fails to deliver: SEC fails-to-deliver dataSource: SEC.Twice a month, a few weeks after the half month ends. Latest 2026-09-09.JSON and CSV
Planned sales: SEC EDGAR Form 144Source: SEC.New notices appear shortly after the SEC posts them; a notice is filed on or before the sale. Latest 2026-03-24.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 2026-07-27.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 1009001Ticker, 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

Datasets

Frequently Asked Questions

How much of CCJ is sold short?

7,893,114 shares were held short at the 2026-09-30 settlement, 2.5 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 CCJ's daily short volume?

On 2026-10-09, 526,160 of the 790,863 CCJ shares reported to FINRA were sold short, 66.5% of the day's reported volume. Short volume is a flow for one day, not a position.

Does CCJ have fails to deliver?

The SEC's latest file shows 3,961 CCJ shares failed to deliver at settlement 2026-09-09. Fails are reported per settlement date and published twice a month with a lag.

Are CCJ insiders buying or selling?

No Form 4 filings for CCJ are on record.

Have CCJ insiders filed to sell?

7 Form 144 notices on file for CCJ worth $14.4M at the prices reported; 0 in the last 90 days worth $0. Latest: Mooney Ronald Liam filed on 2026-03-24 to sell 2,000 shares ($216K) from 2026-03-24.

Who owns 5% or more of CCJ?

Which tracked 13F managers own CCJ?

9 of the 30 tracked 13F managers held CCJ shares at their latest filing, $398.1M in all. The largest: D. E. Shaw & Co. (1.9M shares, $188.8M), Renaissance Technologies (650K shares, $66.2M), Izzy Englander's Millennium Management (423K shares, $43.0M), Ken Griffin's Citadel Advisors (390K shares, $39.7M), Cathie Wood's ARK Investment Management (362K shares, $36.8M), Cliff Asness's AQR Capital Management (125K shares, $12.7M). The table above lists all 9.

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

Cameco (CCJ)

Short interest

Daily short volume

Fails to deliver

Planned sales (Form 144)

Large holders (13D and 13G)

13F holders

Cameco in the regulatory record

Source and updates

How to read it

Other companies the SEC classifies as miscellaneous metal ores

Other company pages

Datasets

Frequently Asked Questions