Cameco Corporation
CA ˙ TSX ˙ US13321L1085
166,86 CA$ ↑11,02 (7,07%)
2026-06-02
DEL PRIS
SecurityCA:CCO / Cameco Corporation
InstitutionCaption Management, LLC
Latest Disclosed Ownership0 shares
Latest Disclosed Value $ 0
Caption Management, LLC ownership in CCO / Cameco Corporation

On May 15, 2026 - Caption Management, LLC filed a 13F-HR form disclosing ownership of 0 shares of Cameco Corporation (CA:CCO) valued at $0 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 17, 2026 disclosing 100,700 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.

Caption Management, LLC has a history of taking positions in derivatives of the underlying security (CCO) in the form of stock options. The firm currently holds call options representing 110,400 of underlying shares valued at $11,990,544 USD and put options representing 323,500 of underlying shares valued at $35,135,335 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.

CA:CCO / 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)
2026-05-15 2026-03-31 13F CAMECO COM 13321L108 0 -100,700 -100.00 0 -100.00
2026-02-17 2025-12-31 13F CAMECO COM 13321L108 100,700 3,800 3.92 9,213 13.38 0.0632
2025-11-14 2025-09-30 13F CAMECO COM 13321L108 96,900 54,920 130.82 8,126 160.78 0.0634
2025-08-14 2025-06-30 13F CAMECO COM 13321L108 41,980 -111,499 -72.65 3,116 -50.67 0.0345
2025-05-15 2025-03-31 13F CAMECO COM 13321L108 153,479 153,479 6,317 0.0607
2024-11-14 2024-09-30 13F CAMECO COM 13321L108 0 -9,000 -100.00 0 -100.00
2024-08-14 2024-06-30 13F CAMECO COM 13321L108 9,000 -16,700 -64.98 443 -60.29 0.0068
2024-05-15 2024-03-31 13F CAMECO COM 13321L108 25,700 25,700 1,113 0.0169
2024-02-14 2023-12-31 13F CAMECO COM 13321L108 0 -4,307 -100.00 0 -100.00
2023-11-14 2023-09-30 13F CAMECO COM 13321L108 4,307 4,307 171 0.0026
2022-11-14 2022-09-30 13F CAMECO COM 13321L108 0 -27,500 -100.00 0 -100.00
2022-08-15 2022-06-30 13F CAMECO COM 13321L108 27,500 27,500 578 0.0080
2022-02-11 2021-12-31 13F CAMECO COM 13321L108 0 -270,000 -100.00 0 -100.00
2021-11-12 2021-09-30 13F CAMECO COM 13321L108 270,000 250,610 1,292.47 5,867 1,477.15 0.0671
2021-08-16 2021-06-30 13F CAMECO COM 13321L108 19,390 -76,210 -79.72 372 -76.57 0.0049
2021-05-17 2021-03-31 13F CAMECO COM 13321L108 95,600 95,600 1,588 0.0341
2019-11-14 2019-09-30 13F CAMECO COM 13321L108 0 -140,000 -100.00 0 -100.00
2019-08-13 2019-06-30 13F CAMECO COM 13321L108 140,000 35,000 33.33 1,502 21.32 0.0756
2019-05-14 2019-03-31 13F CAMECO COM 13321L108 105,000 105,000 1,238 0.0682
2019-01-30 2018-12-31 13F CAMECO COM 13321L108 0 -111,979 -100.00 0 -100.00
2018-11-14 2018-09-30 13F CAMECO COM 13321L108 111,979 111,979 1,276 0.0704
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
(%)
2026-05-15 2026-03-31 13F CAMECO COM Call 110,400 395.07 11,991 487.75 n/a n/a n/a
2026-02-17 2025-12-31 13F CAMECO COM Call 22,300 -77.08 2,040 -75.00 n/a n/a n/a
2025-11-14 2025-09-30 13F CAMECO COM Call 97,300 12.10 8,160 26.63 n/a n/a n/a
2025-08-14 2025-06-30 13F CAMECO COM Call 86,800 243.08 6,443 518.92 n/a n/a n/a
2025-05-15 2025-03-31 13F CAMECO COM Call 25,300 -87.66 1,041 -90.12 n/a n/a n/a
2025-02-14 2024-12-31 13F CAMECO COM Call 205,000 2.50 10,535 10.28 n/a n/a n/a
2024-11-14 2024-09-30 13F CAMECO COM Call 200,000 400.00 9,552 385.37 n/a n/a n/a
2024-08-14 2024-06-30 13F CAMECO COM Call 40,000 1,968 n/a n/a n/a
2024-05-15 2024-03-31 13F CAMECO COM Call 0 -100.00 0 -100.00 n/a n/a n/a
2024-02-14 2023-12-31 13F CAMECO COM Call 200,000 -7.41 8,620 0.68 n/a n/a n/a
2023-11-14 2023-09-30 13F CAMECO COM Call 216,000 -20.00 8,562 1.22 n/a n/a n/a
2023-08-14 2023-06-30 13F CAMECO COM Call 270,000 8,459 n/a n/a n/a
2022-11-14 2022-09-30 13F CAMECO COM Call 0 -100.00 0 -100.00 n/a n/a n/a
2022-08-15 2022-06-30 13F CAMECO COM Call 250,000 5,255 n/a n/a n/a
2022-02-11 2021-12-31 13F CAMECO COM Call 0 -100.00 0 -100.00 n/a n/a n/a
2021-11-12 2021-09-30 13F CAMECO COM Call 900,000 77.51 19,557 101.12 n/a n/a n/a
2021-08-16 2021-06-30 13F CAMECO COM Call 507,000 189.71 9,724 234.50 n/a n/a n/a
2021-05-17 2021-03-31 13F CAMECO COM Call 175,000 -86.46 2,907 -83.21 n/a n/a n/a
2021-02-16 2020-12-31 13F CAMECO COM Call 1,292,400 166.20 17,318 253.43 n/a n/a n/a
2020-11-16 2020-09-30 13F CAMECO COM Call 485,500 4,900 n/a n/a n/a
2019-05-14 2019-03-31 13F CAMECO COM Call 0 -100.00 0 -100.00 n/a n/a n/a
2019-01-30 2018-12-31 13F CAMECO COM Call 862,000 0.00 9,783 -0.44 n/a n/a n/a
2018-11-14 2018-09-30 13F CAMECO COM Call 862,000 90.16 9,826 92.67 n/a n/a n/a
2018-08-14 2018-06-30 13F CAMECO COM Call 453,300 5,100 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
(%)
2026-05-15 2026-03-31 13F CAMECO COM Put 323,500 -47.53 35,135 -37.71 n/a n/a n/a
2026-02-17 2025-12-31 13F CAMECO COM Put 616,500 88.30 56,404 105.44 n/a n/a n/a
2025-11-14 2025-09-30 13F CAMECO COM Put 327,400 -34.52 27,456 -26.03 n/a n/a n/a
2025-08-14 2025-06-30 13F CAMECO COM Put 500,000 -39.02 37,115 9.97 n/a n/a n/a
2025-05-15 2025-03-31 13F CAMECO COM Put 820,000 628.89 33,751 483.83 n/a n/a n/a
2025-02-14 2024-12-31 13F CAMECO COM Put 112,500 5,781 n/a n/a n/a
2024-11-14 2024-09-30 13F CAMECO COM Put 0 -100.00 0 -100.00 n/a n/a n/a
2024-08-14 2024-06-30 13F CAMECO COM Put 40,000 -9.09 1,968 3.25 n/a n/a n/a
2024-05-15 2024-03-31 13F CAMECO COM Put 44,000 -69.12 1,906 -68.96 n/a n/a n/a
2024-02-14 2023-12-31 13F CAMECO COM Put 142,500 -59.87 6,142 -56.37 n/a n/a n/a
2023-11-14 2023-09-30 13F CAMECO COM Put 355,100 42.04 14,076 79.72 n/a n/a n/a
2023-08-14 2023-06-30 13F CAMECO COM Put 250,000 7,832 n/a n/a n/a
2021-02-16 2020-12-31 13F CAMECO COM Put 0 -100.00 0 -100.00 n/a n/a n/a
2020-11-16 2020-09-30 13F CAMECO COM Put 85,500 861 n/a n/a n/a
2019-05-14 2019-03-31 13F CAMECO COM Put 0 -100.00 0 -100.00 n/a n/a n/a
2019-01-30 2018-12-31 13F CAMECO COM Put 917,700 0.00 10,415 -0.44 n/a n/a n/a
2018-11-14 2018-09-30 13F CAMECO COM Put 917,700 102.54 10,461 105.20 n/a n/a n/a
2018-08-14 2018-06-30 13F CAMECO COM Put 453,100 5,098 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.