Cameco Corporation
US ˙ NYSE ˙ US13321L1085

SecurityCCJ / Cameco Corporation
InstitutionWalleye Capital LLC
Latest Disclosed Ownership0 shares
Latest Disclosed Value $ 0
Walleye Capital LLC ownership in CCJ / Cameco Corporation

On May 13, 2026 - Walleye Capital LLC filed a 13F-HR/A form disclosing ownership of 0 shares of Cameco Corporation (US:CCJ) valued at $0 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 13, 2026 disclosing 42,390 shares of Cameco Corporation. This represents a change in shares of -100.00% during the quarter. The current value of the position is $0 USD.

Walleye Capital LLC has a history of taking positions in derivatives of the underlying security (CCJ) in the form of stock options. The firm currently holds call options representing 24,700 of underlying shares valued at $2,682,667 USD and put options representing 21,800 of underlying shares valued at $2,367,698 USD .

Note: prior versions of this page mistakenly stated that the share values represented the number of options, not the number of underlying shares. For more information on the data backing these reports, please see the SEC document Frequently Asked Questions About Form 13F.

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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Institutional Put/Call Ratios
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In addition to reporting standard equity and debt issues, institutions with more than 100MM assets under management must also disclose their put and call option holdings. Since put options generally indicate negative sentiment, and call options indicate positive sentiment, we can get a sense of the overall institutional sentiment by plotting the ratio of puts to calls. The chart to the right plots the historical put/call ratio for this instrument.

Using Put/Call Ratio as an indicator of investor sentiment overcomes one of the key deficiencies of using total institutional ownership, which is that a significant amount of assets under management are invested passively to track indices. Passively-managed funds do not typically buy options, so the put/call ratio indicator more closely tracks the sentiment of actively-managed funds.

CCJ / Cameco Corporation Historical Put/Call Ratio
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)
2026-05-13 2026-03-31 13F/A-1 CAMECO COM 13321L108 0 -42,390 -100.00 0 -100.00
2026-05-08 2026-03-31 13F CAMECO COM 13321L108 0 -42,390 0
2026-02-13 2025-12-31 13F CAMECO COM 13321L108 42,390 29,248 222.55 3,878 251.91 0.0119
2025-11-14 2025-09-30 13F CAMECO COM 13321L108 13,142 -11,235 -46.09 1,102 -39.08 0.0041
2025-08-13 2025-06-30 13F CAMECO COM 13321L108 24,377 -89,300 -78.56 1,810 -61.33 0.0070
2025-05-14 2025-03-31 13F CAMECO COM 13321L108 113,677 88,206 346.30 4,679 257.65 0.0211
2025-02-13 2024-12-31 13F CAMECO COM 13321L108 25,471 5,939 30.41 1,309 40.34 0.0032
2024-11-14 2024-09-30 13F CAMECO COM 13321L108 19,532 -31,092 -61.42 933 -62.57 0.0019
2024-08-14 2024-06-30 13F CAMECO COM 13321L108 50,624 -74,820 -59.64 2,491 -54.18 0.0044
2024-05-15 2024-03-31 13F CAMECO COM 13321L108 125,444 50,979 68.46 5,434 69.34 0.0097
2024-02-14 2023-12-31 13F CAMECO COM 13321L108 74,465 74,465 3,209 0.0068
2023-05-15 2023-03-31 13F CAMECO COM 13321L108 0 -16,714 -100.00 0 -100.00
2023-02-14 2022-12-31 13F CAMECO COM 13321L108 16,714 16,714 379 0.0069
2022-11-14 2022-09-30 13F CAMECO COM 13321L108 0 -14,273 -100.00 0 -100.00
2022-08-19 2022-06-30 13F/A-1 CAMECO COM 13321L108 14,273 -12,998 -47.66 300 -62.22 0.0083
2022-08-08 2022-06-30 13F CAMECO COM 13321L108 14,273 -12,998 300 0.0083
2022-05-27 2022-03-31 13F/A-01 CAMECO COM 13321L108 27,271 27,271 794 0.0212
2022-05-16 2022-03-31 13F CAMECO COM 13321L108 27,271 27,271 794 0.0162
Disclosed Call Options
File
Date
Effective
Date
Form Security Class ID Opt Avg Share
Price
Shares ΔShares
(%)
Value
(x1000)
ΔValue
(%)
Prior Allocation
(%)
Allocation
(%)
ΔAllocation
(%)
Cost Basis
(x1000)
Profit
(x1000)
Return
(%)
2026-05-13 2026-03-31 13F/A CAMECO COM Call 24,700 -77.91 2,683 -73.78 n/a n/a n/a
2026-05-08 2026-03-31 13F CAMECO COM Call 24,700 2,683 n/a n/a n/a
2026-02-13 2025-12-31 13F CAMECO COM Call 111,800 136.86 10,229 158.41 n/a n/a n/a
2025-11-14 2025-09-30 13F CAMECO COM Call 47,200 -70.43 3,958 -66.59 n/a n/a n/a
2025-08-13 2025-06-30 13F CAMECO COM Call 159,600 57.24 11,847 183.62 n/a n/a n/a
2025-05-14 2025-03-31 13F CAMECO COM Call 101,500 -12.20 4,178 -29.68 n/a n/a n/a
2025-02-13 2024-12-31 13F CAMECO COM Call 115,600 22.72 5,941 32.06 n/a n/a n/a
2024-11-14 2024-09-30 13F CAMECO COM Call 94,200 -49.97 4,499 -51.45 n/a n/a n/a
2024-08-14 2024-06-30 13F CAMECO COM Call 188,300 618.70 9,264 716.93 n/a n/a n/a
2024-05-15 2024-03-31 13F CAMECO COM Call 26,200 -32.12 1,135 -31.81 n/a n/a n/a
2024-02-14 2023-12-31 13F CAMECO COM Call 38,600 -25.63 1,664 -19.15 n/a n/a n/a
2023-11-21 2023-09-30 13F/A CAMECO COM Call 51,900 7.23 2,057 35.69 n/a n/a n/a
2023-11-14 2023-09-30 13F CAMECO COM Call 51,900 2,057 n/a n/a n/a
2023-08-14 2023-06-30 13F CAMECO COM Call 48,400 1,516 n/a n/a n/a
Disclosed Put Options
File
Date
Effective
Date
Form Security Class ID Opt Avg Share Price Shares ΔShares
(%)
Value
(x1000)
ΔValue
(%)
Prior Allocation
(%)
Allocation
(%)
ΔAllocation
(%)
Cost Basis
(x1000)
Profit
(x1000)
Return
(%)
2026-05-13 2026-03-31 13F/A CAMECO COM Put 21,800 -84.82 2,368 -81.98 n/a n/a n/a
2026-05-08 2026-03-31 13F CAMECO COM Put 21,800 2,368 n/a n/a n/a
2026-02-13 2025-12-31 13F CAMECO COM Put 143,600 148.87 13,138 171.54 n/a n/a n/a
2025-11-14 2025-09-30 13F CAMECO COM Put 57,700 297.93 4,839 349.63 n/a n/a n/a
2025-08-13 2025-06-30 13F CAMECO COM Put 14,500 -88.59 1,076 -79.43 n/a n/a n/a
2025-05-14 2025-03-31 13F CAMECO COM Put 127,100 -29.35 5,231 -43.42 n/a n/a n/a
2025-02-13 2024-12-31 13F CAMECO COM Put 179,900 44.85 9,245 55.88 n/a n/a n/a
2024-11-14 2024-09-30 13F CAMECO COM Put 124,200 -54.17 5,932 -55.52 n/a n/a n/a
2024-08-14 2024-06-30 13F CAMECO COM Put 271,000 40.34 13,333 59.39 n/a n/a n/a
2024-05-15 2024-03-31 13F CAMECO COM Put 193,100 161.65 8,365 163.05 n/a n/a n/a
2024-02-14 2023-12-31 13F CAMECO COM Put 73,800 43.02 3,181 55.50 n/a n/a n/a
2023-11-21 2023-09-30 13F/A CAMECO COM Put 51,600 -68.80 2,045 -60.53 n/a n/a n/a
2023-11-14 2023-09-30 13F CAMECO COM Put 51,600 2,045 n/a n/a n/a
2023-08-14 2023-06-30 13F CAMECO COM Put 165,400 5,182 n/a n/a n/a
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.