Cameco Corporation
US ˙ NYSE ˙ US13321L1085

SecurityCCJ / Cameco Corporation
InstitutionXTX Topco Ltd
Latest Disclosed Ownership35,546 shares
Latest Disclosed Value $ 3,860,651
XTX Topco Ltd reports 80.30% increase in ownership of CCJ / Cameco Corporation

On May 15, 2026 - XTX Topco Ltd filed a 13F-HR form disclosing ownership of 35,546 shares of Cameco Corporation (US:CCJ) valued at $3,860,651 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 17, 2026 disclosing 19,715 shares of Cameco Corporation. This represents a change in shares of 80.30% during the quarter. The current value of the position is $4,052,955 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 35,546 15,831 80.30 3,861 114.09 0.0671
2026-02-17 2025-12-31 13F CAMECO COM 13321L108 19,715 11,640 144.15 1,804 166.32 0.0474
2025-11-14 2025-09-30 13F CAMECO COM 13321L108 8,075 4,984 161.24 677 195.63 0.0351
2025-08-12 2025-06-30 13F CAMECO COM 13321L108 3,091 -29,221 -90.43 229 -82.77 0.0095
2025-05-08 2025-03-31 13F CAMECO COM 13321L108 32,312 14,598 82.41 1,330 46.04 0.0680
2025-02-13 2024-12-31 13F CAMECO COM 13321L108 17,714 5,182 41.35 910 52.17 0.0748
2024-11-14 2024-09-30 13F CAMECO COM 13321L108 12,532 -32,169 -71.96 599 -72.81 0.0433
2024-08-12 2024-06-30 13F CAMECO COM 13321L108 44,701 24,865 125.35 2,199 156.00 0.1883
2024-05-13 2024-03-31 13F CAMECO COM 13321L108 19,836 19,836 859 0.1158
2023-05-12 2023-03-31 13F CAMECO COM 13321L108 0 -12,254 -100.00 0 -100.00
2023-02-14 2022-12-31 13F CAMECO COM 13321L108 12,254 12,254 278 0.0590
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.