Cameco Corporation
US ˙ NYSE ˙ US13321L1085

SecurityCCJ / Cameco Corporation
InstitutionFirst Manhattan Co
Latest Disclosed Ownership2,187 shares
Latest Disclosed Value $ 237,530
First Manhattan Co ownership in CCJ / Cameco Corporation

On May 15, 2026 - First Manhattan Co filed a 13F-HR form disclosing ownership of 2,187 shares of Cameco Corporation (US:CCJ) valued at $237,530 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 17, 2026 disclosing 2,187 shares of Cameco Corporation. This represents a change in shares of 0.00% during the quarter. The current value of the position is $250,543 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)
2026-05-15 2026-03-31 13F CAMECO COM 13321L108 2,187 0 0.00 238 18.50 0.0007
2026-02-17 2025-12-31 13F CAMECO COM 13321L108 2,187 2,187 200 0.0005
2024-08-15 2024-06-30 13F/A-1 CAMECO COM 13321L108 0 -2,000 -100.00 0 -100.00
2024-08-14 2024-06-30 13F CAMECO COM 13321L108 0 0
2024-05-15 2024-03-31 13F CAMECO COM 13321L108 2,000 2,000 87 0.0003
2022-08-15 2022-06-30 13F CAMECO COM 13321L108 0 0 0 0.0000
2022-05-16 2022-03-31 13F CAMECO COM 13321L108 0 -1,000 -100.00 0 -100.00
2022-02-14 2021-12-31 13F CAMECO COM 13321L108 1,000 0 0.00 21 0.00 0.0001
2021-11-15 2021-09-30 13F CAMECO COM 13321L108 1,000 0 0.00 21 10.53 0.0001
2021-08-16 2021-06-30 13F CAMECO COM 13321L108 1,000 1,000 19 0.0001
2020-08-14 2020-06-30 13F CAMECO COMMON 13321L108 0 -70,900 -100.00 0 -100.00
2020-05-06 2020-03-31 13F CAMECO COMMON 13321L108 70,900 0 0.00 541 -14.26 0.0035
2020-02-13 2019-12-31 13F CAMECO COMMON 13321L108 70,900 -3,700 -4.96 631 -10.88 0.0032
2019-11-13 2019-09-30 13F CAMECO COMMON 13321L108 74,600 -80,200 -51.81 708 -57.38 0.0039
2019-08-16 2019-06-30 13F CAMECO COMMON 13321L108 154,800 4,000 2.65 1,661 -6.53 0.0092
2019-04-12 2019-03-31 13F CAMECO COMMON 13321L108 150,800 -2,000 -1.31 1,777 2.48 0.0103
2019-01-30 2018-12-31 13F CAMECO COMMON 13321L108 152,800 35,000 29.71 1,734 29.21 0.0108
2018-10-15 2018-09-30 13F CAMECO COMMON 13321L108 117,800 40,400 52.20 1,342 54.25 0.0072
2018-08-01 2018-06-30 13F CAMECO COMMON 13321L108 77,400 0 0.00 870 23.76 0.0050
2018-04-20 2018-03-31 13F CAMECO COMMON 13321L108 77,400 0 0.00 703 -1.54 0.0040
2018-01-22 2017-12-31 13F CAMECO COMMON 13321L108 77,400 0 0.00 714 -4.55 0.0039
2017-10-25 2017-09-30 13F CAMECO COMMON 13321L108 77,400 -3,000 -3.73 748 2.33 0.0043
2017-08-10 2017-06-30 13F/A-2 CAMECO COMMON 13321L108 80,400 0 0.00 731 -17.87 0.0043
2017-08-01 2017-06-30 13F/A-1 CAMECO COMMON 13321L108 80,400 0 731 0.0043
2017-07-28 2017-06-30 13F CAMECO COMMON 13321L108 80,400 0 731
2017-04-25 2017-03-31 13F/A-1 CAMECO COMMON 13321L108 80,400 1,500 1.90 890 7.75 0.0053
2017-04-24 2017-03-31 13F CAMECO COMMON 13321L108 78,900 675
2017-01-25 2016-12-31 13F CAMECO COMMON 13321L108 78,900 0 0.00 826 22.37 0.0050
2016-10-20 2016-09-30 13F CAMECO COMMON 13321L108 78,900 0 0.00 675 -21.97 0.0041
2016-07-14 2016-06-30 13F CAMECO COMMON 13321L108 78,900 0 0.00 865 -14.61 0.0053
2016-04-22 2016-03-31 13F CAMECO COMMON 13321L108 78,900 0 0.00 1,013 4.22 0.0062
2016-01-20 2015-12-31 13F CAMECO COMMON 13321L108 78,900 0 0.00 972 1.25 0.0060
2015-10-26 2015-09-30 13F CAMECO COMMON 13321L108 78,900 -391 -0.49 960 -15.19 0.0062
2015-07-17 2015-06-30 13F CAMECO COMMON 13321L108 79,291 78,900 20,179.03 1,132 22,540.00 0.0067
2015-04-30 2015-03-31 13F CAMECO COMMON 13321L108 391 0 0.00 5 -16.67 0.0000
2015-01-20 2014-12-31 13F CAMECO COMMON 13321L108 391 0 0.00 6 0.00 0.0000
2014-10-23 2014-09-30 13F CAMECO COMMON 13321L108 391 391 6 0.0000
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.