Cameco Corporation
US ˙ NYSE ˙ US13321L1085

SecurityCCJ / Cameco Corporation
InstitutionSei Investments Co
Latest Disclosed Ownership50,358 shares
Latest Disclosed Value $ 4,607,145
Sei Investments Co reports 67.19% decrease in ownership of CCJ / Cameco Corporation

On February 13, 2026 - Sei Investments Co filed a 13F-HR form disclosing ownership of 50,358 shares of Cameco Corporation (US:CCJ) valued at $4,607,253 USD as of December 31, 2025. The entity filed a previous 13F-HR on November 13, 2025 disclosing 153,496 shares of Cameco Corporation. This represents a change in shares of -67.19% during the quarter. The current value of the position is $5,741,819 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)
2026-02-13 2025-12-31 13F CAMECO COM 13321L108 50,358 -103,138 -67.19 4,607 -64.21 0.0045
2025-11-13 2025-09-30 13F CAMECO COM 13321L108 153,496 15,741 11.43 12,872 25.89 0.0138
2025-08-14 2025-06-30 13F CAMECO COM 13321L108 137,755 -114,441 -45.38 10,226 -1.49 0.0119
2025-05-14 2025-03-31 13F/A-1 CAMECO COM 13321L108 252,196 3,351 1.35 10,381 -18.83 0.0134
2025-05-13 2025-03-31 13F CAMECO COM 13321L108 230,470 -18,375 10,854 0.0118
2025-02-11 2024-12-31 13F CAMECO COM 13321L108 248,845 -24,061 -8.82 12,788 -1.89 0.0164
2024-11-12 2024-09-30 13F CAMECO COM 13321L108 272,906 201,132 280.23 13,034 269.34 0.0169
2024-08-13 2024-06-30 13F CAMECO COM 13321L108 71,774 53,144 285.26 3,530 337.30 0.0050
2024-05-07 2024-03-31 13F CAMECO COM 13321L108 18,630 -21,895 -54.03 807 -53.78 0.0012
2024-02-14 2023-12-31 13F CAMECO COM 13321L108 40,525 -35,818 -46.92 1,747 -42.30 0.0028
2023-11-14 2023-09-30 13F CAMECO COM 13321L108 76,343 -58,386 -43.34 3,026 -28.31 0.0054
2023-08-11 2023-06-30 13F CAMECO COM 13321L108 134,729 -8,173 -5.72 4,221 12.89 0.0074
2023-05-12 2023-03-31 13F CAMECO COM 13321L108 142,902 -50,327 -26.05 3,740 -14.63 0.0069
2023-02-10 2022-12-31 13F CAMECO COM 13321L108 193,229 47,578 32.67 4,380 13.41 0.0097
2022-11-14 2022-09-30 13F CAMECO COM 13321L108 145,651 -58,554 -28.67 3,862 -9.98 0.0086
2022-08-15 2022-06-30 13F CAMECO COM 13321L108 204,205 -47,866 -18.99 4,290 -41.51 0.0093
2022-05-13 2022-03-31 13F CAMECO COM 13321L108 252,071 -182,296 -41.97 7,335 -22.58 0.0147
2022-02-14 2021-12-31 13F CAMECO COM 13321L108 434,367 29,465 7.28 9,474 7.67 0.0178
2021-11-12 2021-09-30 13F CAMECO COM 13321L108 404,902 -28,027 -6.47 8,799 5.96 0.0185
2021-08-06 2021-06-30 13F CAMECO COM 13321L108 432,929 -111,276 -20.45 8,304 -8.13 0.0184
2021-05-12 2021-03-31 13F CAMECO COM 13321L108 544,205 -132,643 -19.60 9,039 -0.34 0.0228
2021-02-08 2020-12-31 13F CAMECO COM 13321L108 676,848 -114,796 -14.50 9,070 13.43 0.0234
2020-12-04 2020-09-30 13F/A-1 CAMECO COM 13321L108 791,644 72,019 10.01 7,996 8.41 0.0232
2020-11-06 2020-09-30 13F CAMECO COM 13321L108 792,104 72,479 8,001 19,264.6291
2020-08-17 2020-06-30 13F/A-1 CAMECO COM 13321L108 719,625 -60,264 -7.73 7,376 23.80 0.0229
2020-08-11 2020-06-30 13F CAMECO COM 13321L108 752,767 -27,122 6,702 18,179.5317
2020-05-14 2020-03-31 13F CAMECO COM 13321L108 779,889 28,230 3.76 5,958 -10.94 0.0219
2020-02-06 2019-12-31 13F CAMECO COM 13321L108 751,659 972 0.13 6,690 -6.20 0.0200
2019-11-12 2019-09-30 13F CAMECO COM 13321L108 750,687 263,137 53.97 7,132 36.34 0.0182
2019-08-14 2019-06-30 13F CAMECO COM 13321L108 487,550 281,586 136.72 5,231 115.44 0.0171
2019-05-15 2019-03-31 13F CAMECO COM 13321L108 205,964 201,371 4,384.30 2,428 4,569.23 0.0082
2019-02-13 2018-12-31 13F CAMECO COM 13321L108 4,593 1,237 36.86 52 36.84 0.0002
2018-11-08 2018-09-30 13F CAMECO COM 13321L108 3,356 -301 -8.23 38 -7.32 0.0001
2018-08-03 2018-06-30 13F CAMECO COM 13321L108 3,657 301 8.97 41 32.26 0.0001
2018-05-11 2018-03-31 13F CAMECO COM 13321L108 3,356 630 23.11 31 24.00 0.0001
2018-02-08 2017-12-31 13F CAMECO COM 13321L108 2,726 0 0.00 25 -3.85 0.0001
2017-11-06 2017-09-30 13F CAMECO COM 13321L108 2,726 -763,089 -99.64 26 -99.63 0.0001
2017-07-31 2017-06-30 13F CAMECO COM 13321L108 765,815 763,089 27,992.99 6,968 23,126.67 0.0278
2017-05-05 2017-03-31 13F CAMECO COM 13321L108 2,726 -763,089 -99.64 30 -99.63 0.0001
2017-02-02 2016-12-31 13F CAMECO COM 13321L108 765,815 751,589 5,283.21 8,019 6,472.95 0.0388
2016-11-04 2016-09-30 13F CAMECO COM 13321L108 14,226 -401 -2.74 122 -23.75 0.0006
2016-08-11 2016-06-30 13F CAMECO COM 13321L108 14,627 1,200 8.94 160 -6.98 0.0010
2016-05-10 2016-03-31 13F/A-1 CAMECO COM 13321L108 13,427 10,300 329.39 172 341.03 0.0011
2016-02-03 2015-12-31 13F CAMECO COM 13321L108 3,127 3,127 0.00 39 0.0002
2015-05-01 2015-03-31 13F CAMECO COM 13321L108 0 -7,487 -100.00 0 -100.00
2015-02-10 2014-12-31 13F CAMECO COM 13321L108 7,487 7,487 123 0.0011
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.