Canadian Solar Inc.
US ˙ NasdaqGS ˙ CA1366351098

SecurityCSIQ / Canadian Solar Inc.
InstitutionMackenzie Financial Corp
Latest Disclosed Ownership4,616,690 shares
Ownership 6.90%
Mackenzie Financial Corp ownership in CSIQ / Canadian Solar Inc.

2026-05-15 - Mackenzie Financial Corp has filed an SCHEDULE 13G form with the Securities and Exchange Commission (SEC) disclosing ownership of 4,616,690 shares of Canadian Solar Inc. (US:CSIQ). This represents 6.9 percent ownership of the company. In their previous filing dated 2025-11-13 , Mackenzie Financial Corp had reported owning 4,506,565 shares, indicating an increase of 2.44 percent.

Institutional Ownership: 13D/G Filings

This table shows a history of the 13D/G filings made by the investor and/or investor group. Note that the share values in this table are not directly comparable to any numbers shown in the 13F table (if any).

File
Date
Effective
Date
Form Prev
Shares
Latest
Shares
ΔShares
(Percent)
Ownership
(Percent)
ΔOwnership
(Percent)
2026-05-15 2026-05-15 13G 4,506,565 4,616,690 2.44 6.90 2.99
2025-11-13 2025-11-13 13G/A 5,884,865 4,506,565 -23.42 6.70 -23.86
2025-08-14 2025-08-14 13G/A 5,479,065 5,884,865 7.41 8.80 3.53
2025-05-13 2025-05-13 13G/A 5,523,565 5,479,065 -0.81 8.50 0.00
2025-02-13 2025-02-13 13G/A 5,165,665 5,523,565 6.93 8.50 6.38
2024-11-13 2024-11-13 13G/A 3,952,015 5,165,665 30.71 7.99 30.77
2024-02-13 2024-02-13 13G/A 3,952,015 6.11

Important Note: One of the primary uses of the 13D/G filings is to evaluate the ability of a firm to control a company (ie, the "beneficial ownership"). To that end, firms are required to report not just direct holdings in companies, but indirect holdings that they control. For investment firms, these indirect holdings can include shares in funds they manage, advisory accounts, and in the case of activist campaigns, pledged votes. Therefore, share counts listed in 13D/G filings can differ significantly than share counts listed in 13F filings.

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)
2026-05-13 2026-03-31 13F CANADIAN SOLAR COM 136635109 4,616,690 1,732,275 60.06 63,941 -6.64 0.0767
2026-02-18 2025-12-31 13F CANADIAN SOLAR COM 136635109 2,884,415 -2,735,100 -48.67 68,485 -6.54 0.0811
2025-11-13 2025-09-30 13F CANADIAN SOLAR COM 136635109 5,619,515 -265,350 -4.51 73,278 12.79 0.0888
2025-08-13 2025-06-30 13F CANADIAN SOLAR COM 136635109 5,884,865 405,800 7.41 64,969 37.08 0.0842
2025-05-07 2025-03-31 13F CANADIAN SOLAR COM 136635109 5,479,065 -44,500 -0.81 47,394 -22.84 0.0674
2025-05-02 2024-12-31 13F/A-2 CANADIAN SOLAR COM 136635109 5,523,565 357,900 6.93 61,422 -29.05 0.0837
2025-02-20 2024-12-31 13F/A-1 CANADIAN SOLAR COM 136635109 5,523,565 357,900 61,422 0.0798
2025-02-14 2024-12-31 13F Canadian Solar Common Stock 136635109 5,523,565 357,900 59,378 0.0852
2024-11-13 2024-09-30 13F CANADIAN SOLAR COM 136635109 5,165,665 50,000 0.98 86,577 14.74 0.1205
2024-08-14 2024-06-30 13F CANADIAN SOLAR COM 136635109 5,115,665 1,037,800 25.45 75,456 -6.36 0.1121
2024-05-10 2024-03-31 13F CANADIAN SOLAR COM 136635109 4,077,865 125,850 3.18 80,579 -22.27 0.1161
2024-01-30 2023-12-31 13F CANADIAN SOLAR COM 136635109 3,952,015 843,100 27.12 103,661 48.52 0.1563
2023-10-25 2023-09-30 13F CANADIAN SOLAR COM 136635109 3,108,915 589,400 23.39 69,795 -27.71 0.1173
2023-08-03 2023-06-30 13F CANADIAN SOLAR COM 136635109 2,519,515 454,750 22.02 96,548 17.46 0.1465
2023-04-24 2023-03-31 13F CANADIAN SOLAR COM 136635109 2,064,765 37,193 1.83 82,198 31.20 0.1270
2023-02-14 2022-12-31 13F CANADIAN SOLAR COM 136635109 2,027,572 71,700 3.67 62,652 -14.01 0.1046
2022-10-07 2022-09-30 13F Canadian Solar Common Stock 136635109 1,955,872 -771,786 -28.29 72,856 -14.23 0.1253
2022-08-10 2022-06-30 13F CANADIAN SOLAR COM 136635109 2,727,658 125,000 4.80 84,939 -7.71 0.1360
2022-05-13 2022-03-31 13F CANADIAN SOLAR COM 136635109 2,602,658 80,050 3.17 92,030 16.59 0.1234
2022-02-14 2021-12-31 13F CANADIAN SOLAR COM 136635109 2,522,608 462,600 22.46 78,932 10.77 0.1063
2021-11-08 2021-09-30 13F CANADIAN SOLAR COM 136635109 2,060,008 395,122 23.73 71,256 -4.55 0.1010
2021-08-11 2021-06-30 13F CANADIAN SOLAR COM 136635109 1,664,886 746,850 81.35 74,653 63.85 0.1038
2021-05-14 2021-03-31 13F CANADIAN SOLAR COM 136635109 918,036 918,036 45,562 0.0694
2020-02-13 2019-12-31 13F CANADIAN SOLAR COM 136635109 0 -30,799 -100.00 0 -100.00
2019-11-14 2019-09-30 13F CANADIAN SOLAR COM 136635109 30,799 30,799 581 0.0015
2019-08-23 2019-06-30 13F/A-1 CANADIAN SOLAR COM 136635109 0 -11,895 -100.00 0 -100.00
2019-05-15 2019-03-31 13F CANADIAN SOLAR COM 136635109 11,895 -1,937 -14.00 222 12.12 0.0005
2019-02-06 2018-12-31 13F CANADIAN SOLAR COM 136635109 13,832 -1,316 -8.69 198 -10.00 0.0005
2018-11-15 2018-09-30 13F CANADIAN SOLAR COM 136635109 15,148 15,148 220 0.0005
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.