Cameco Corporation
US ˙ NYSE ˙ US13321L1085

SecurityCCJ / Cameco Corporation
InstitutionOppenheimer & Co Inc
Latest Disclosed Ownership37,789 shares
Latest Disclosed Value $ 4,104,263
Oppenheimer & Co Inc reports 28.59% increase in ownership of CCJ / Cameco Corporation

On April 23, 2026 - Oppenheimer & Co Inc filed a 13F-HR form disclosing ownership of 37,789 shares of Cameco Corporation (US:CCJ) valued at $4,104,263 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 2, 2026 disclosing 29,387 shares of Cameco Corporation. This represents a change in shares of 28.59% during the quarter. The current value of the position is $4,329,108 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)
2026-04-23 2026-03-31 13F CAMECO COM 13321L108 37,789 8,402 28.59 4,104 52.68 0.0500
2026-02-02 2025-12-31 13F CAMECO COM 13321L108 29,387 42 0.14 2,689 9.27 0.0382
2025-11-06 2025-09-30 13F CAMECO COM 13321L108 29,345 4,229 16.84 2,461 31.97 0.0300
2025-07-31 2025-06-30 13F CAMECO COM 13321L108 25,116 20,195 410.38 1,864 822.77 0.0247
2025-04-23 2025-03-31 13F CAMECO COM 13321L108 4,921 -27,103 -84.63 203 -87.72 0.0031
2025-02-05 2024-12-31 13F CAMECO COM 13321L108 32,024 -373 -1.15 1,646 6.33 0.0246
2024-11-05 2024-09-30 13F CAMECO COM 13321L108 32,397 2,859 9.68 1,547 6.47 0.0236
2024-08-08 2024-06-30 13F CAMECO COM 13321L108 29,538 5,168 21.21 1,453 37.73 0.0231
2024-05-07 2024-03-31 13F CAMECO COM 13321L108 24,370 -10,865 -30.84 1,056 -30.50 0.0175
2024-02-13 2023-12-31 13F CAMECO COM 13321L108 35,235 14,688 71.48 1,519 86.49 0.0279
2023-11-08 2023-09-30 13F CAMECO COM 13321L108 20,547 70 0.34 814 26.99 0.0168
2023-08-03 2023-06-30 13F CAMECO COM 13321L108 20,477 170 0.84 642 20.72 0.0128
2023-05-10 2023-03-31 13F CAMECO COM 13321L108 20,307 -581 -2.78 531 12.26 0.0113
2023-02-08 2022-12-31 13F CAMECO COM 13321L108 20,888 4,242 25.48 474 7.26 0.0108
2022-11-14 2022-09-30 13F CAMECO COM 13321L108 16,646 16,646 441 0.0103
2022-08-08 2022-06-30 13F CAMECO COM 13321L108 0 -7,827 -100.00 0 -100.00
2022-05-12 2022-03-31 13F CAMECO COM 13321L108 7,827 7,827 228 0.0041
2022-02-02 2021-12-31 13F CAMECO COM 13321L108 0 -10,265 -100.00 0 -100.00
2021-11-12 2021-09-30 13F CAMECO COM 13321L108 10,265 -427 -3.99 223 8.78 0.0042
2021-08-03 2021-06-30 13F CAMECO COM 13321L108 10,692 10,692 205 0.0037
2021-05-07 2021-03-31 13F CAMECO COM 13321L108 0 -21,099 -100.00 0 -100.00
2021-02-11 2020-12-31 13F CAMECO COM 13321L108 21,099 21,099 282 0.0060
2019-01-29 2018-12-31 13F CAMECO COM 13321L108 0 -17,981 -100.00 0 -100.00
2018-10-26 2018-09-30 13F CAMECO COM 13321L108 17,981 0 0.00 205 1.49 0.0052
2018-08-10 2018-06-30 13F CAMECO COM 13321L108 17,981 17,981 202 0.0055
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.