Mackenzie Holds 6.89% of Canadian Solar (NASDAQ: CSIQ) — Schedule 13G

Rhea-AI Filing Summary

Canadian Solar Inc. disclosure shows Mackenzie Financial Corporation beneficially owns 4,616,690 common shares, equal to 6.89% of the class as reported with an 03/31/2026 reference. The filing states Mackenzie has sole voting and dispositive power over those shares.

The submission is a Schedule 13G and is signed on 05/15/2026 noting the holdings were not acquired to change or influence control. The CUSIP listed is 136635109.

Insights

Institutional Governance Analyst

Large passive holding disclosed; no control intent claimed.

Mackenzie Financial Corporation reports beneficial ownership of 4,616,690 shares (6.89%) of Canadian Solar common stock with sole voting and dispositive power. The filing is a Schedule 13G and includes a certification that the position is not held to influence control.

For governance purposes, this is a material share block to note in ownership tables; cash-flow treatment and intent beyond the certification are not stated in the provided excerpt.

Key Figures

Beneficial ownership: 4,616,690 shares Percent of class: 6.89% CUSIP: 136635109 +3 more

6 metrics

Beneficial ownership 4,616,690 shares reported beneficially owned (Schedule 13G)

Percent of class 6.89% percent of common shares reported

CUSIP 136635109 Common Shares identifier

Reference date 03/31/2026 date tied to the reported position

Filing signature date 05/15/2026 date signature certified the Schedule 13G

Sole voting power 4,616,690 shares number with sole power to vote

Key Terms

Schedule 13G, Beneficially owned, Sole Dispositive Power

3 terms

Schedule 13G regulatory

"Name of person filing: Mackenzie Financial Corporation (Schedule 13G disclosure)"

A Schedule 13G is a formal document that investors file with the government when they acquire a large ownership stake in a company, usually for investment purposes rather than control. It helps keep the public informed about who owns significant parts of a company's shares, which can influence how the company is managed and how investors make decisions. Filing this schedule is important for transparency and understanding the ownership landscape of publicly traded companies.

Beneficially owned financial

"Amount beneficially owned: 4,616,690"

Beneficially owned describes securities or assets where a person has the economic rights and control—such as the right to receive dividends and to direct voting—even if legal title is held in another name. Think of it like having the keys and using a car that’s registered to someone else: you get the benefits and make decisions. Investors care because beneficial ownership reveals who truly controls value and voting power, affecting corporate decisions and takeover dynamics.

Sole Dispositive Power regulatory

"Sole power to dispose or to direct the disposition of: 4,616,690"

Sole dispositive power is the exclusive legal authority to decide what happens to a security — for example, whether to sell, transfer, or retain shares — without needing anyone else’s permission. Investors care because it signals who truly controls the economic outcome of an investment: like holding the only key to a safe, the holder can realize gains or losses and may trigger regulatory reporting, insider rules, or influence over corporate ownership.

AI-generated analysis. How Rhea-AI works. Not financial advice.

See more from StockTitan in Google Search and AI answers. Adds StockTitan as a preferred source · opens Google

Add on Google Not now

Accepted by SEC EDGAR 05/15/2026 - 03:57 PM Learn about SEC filing dates

FAQ

What stake does Mackenzie Financial hold in Canadian Solar (CSIQ)?

Mackenzie Financial beneficially owns 4,616,690 common shares, representing 6.89% of the class as reported with an 03/31/2026 reference. The filing states sole voting and dispositive power over these shares.

What form was filed to disclose Mackenzie’s position in CSIQ?

Mackenzie filed a Schedule 13G to disclose the position. The Schedule 13G filing, signed on 05/15/2026, includes a certification that the shares were not acquired to change or influence control.

Does Mackenzie indicate intent to change control of Canadian Solar (CSIQ)?

No. The filing certifies the securities were not acquired and are not held to change or influence control. The submission explicitly states the holdings are not connected to transactions with that purpose.

What voting and dispositive powers does Mackenzie have over CSIQ shares?

Mackenzie reports sole voting power of 4,616,690 shares and sole dispositive power of 4,616,690 shares. Shared voting and dispositive powers are reported as nil in the excerpt.

What identifier and dates are shown in the Schedule 13G for CSIQ?

The CUSIP listed is 136635109, the reporting reference date is 03/31/2026, and the filing signature date is 05/15/2026, per the provided excerpt.

SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

SCHEDULE 13G

UNDER THE SECURITIES EXCHANGE ACT OF 1934

Canadian Solar Inc.

(Name of Issuer)

Common Shares

(Title of Class of Securities)

136635109

(CUSIP Number)

03/31/2026

(Date of Event Which Requires Filing of this Statement)

Check the appropriate box to designate the rule pursuant to which this Schedule is filed:

Rule 13d-1(b)

Rule 13d-1(c)

Rule 13d-1(d)

schemaVersion:

SCHEDULE 13G

CUSIP Number(s): 136635109

1

Names of Reporting Persons

MACKENZIE FINANCIAL CORP

2

Check the appropriate box if a member of a Group (see instructions)

(a)
(b)

3

Sec Use Only

4

Citizenship or Place of Organization

ONTARIO, CANADA

Number of Shares Beneficially Owned by Each Reporting Person With:

5	Sole Voting Power 4,616,690.00
6	Shared Voting Power 0.00
7	Sole Dispositive Power 4,616,690.00
8	Shared Dispositive Power 0.00

9

Aggregate Amount Beneficially Owned by Each Reporting Person

4,616,690.00

10

Check box if the aggregate amount in row (9) excludes certain shares (See Instructions)

11

Percent of class represented by amount in row (9)

6.9 %

12

Type of Reporting Person (See Instructions)

IA

SCHEDULE 13G

Item 1.
(a)	Name of issuer: Canadian Solar Inc.
(b)	Address of issuer's principal executive offices: 4273 KING STREET EAST, SUITE 102, KITCHENER, ONTARIO, CANADA, N2P 2E9
Item 2.
(a)	Name of person filing: Mackenzie Financial Corporation
(b)	Address or principal business office or, if none, residence: 180 Queen Street West
(c)	Citizenship: Toronto, Ontario Canada
(d)	Title of class of securities: Common Shares
(e)	CUSIP Number(s): 136635109
Item 3.	If this statement is filed pursuant to §§ 240.13d-1(b) or 240.13d-2(b) or (c), check whether the person filing is a:
(a)	Broker or dealer registered under section 15 of the Act (15 U.S.C. 78o);
(b)	Bank as defined in section 3(a)(6) of the Act (15 U.S.C. 78c);
(c)	Insurance company as defined in section 3(a)(19) of the Act (15 U.S.C. 78c);
(d)	Investment company registered under section 8 of the Investment Company Act of 1940 (15 U.S.C. 80a-8);
(e)	An investment adviser in accordance with § 240.13d-1(b)(1)(ii)(E);
(f)	An employee benefit plan or endowment fund in accordance with § 240.13d-1(b)(1)(ii)(F);
(g)	A parent holding company or control person in accordance with § 240.13d-1(b)(1)(ii)(G);
(h)	A savings associations as defined in Section 3(b) of the Federal Deposit Insurance Act (12 U.S.C. 1813);
(i)	A church plan that is excluded from the definition of an investment company under section 3(c)(14) of the Investment Company Act of 1940 (15 U.S.C. 80a-3);
(j)	A non-U.S. institution in accordance with § 240.13d-1(b)(1)(ii)(J). If filing as a non-U.S. institution in accordance with § 240.13d-1(b)(1)(ii)(J), please specify the type of institution:
(k)	Group, in accordance with Rule 240.13d-1(b)(1)(ii)(K).
Item 4.	Ownership
(a)	Amount beneficially owned: 4,616,690
(b)	Percent of class: 6.89%
(c)	Number of shares as to which the person has:
	(i) Sole power to vote or to direct the vote: 4,616,690
	(ii) Shared power to vote or to direct the vote: NIL
	(iii) Sole power to dispose or to direct the disposition of: 4,616,690
	(iv) Shared power to dispose or to direct the disposition of: NIL
Item 5.	Ownership of 5 Percent or Less of a Class.
	Not Applicable
Item 6.	Ownership of more than 5 Percent on Behalf of Another Person.
	Not Applicable
Item 7.	Identification and Classification of the Subsidiary Which Acquired the Security Being Reported on by the Parent Holding Company or Control Person.
	Not Applicable
Item 8.	Identification and Classification of Members of the Group.
	Not Applicable
Item 9.	Notice of Dissolution of Group.
	Not Applicable

Item 10.

Certifications:

By signing below I certify that, to the best of my knowledge and belief, the securities referred to above were acquired and are held in the ordinary course of business and were not acquired and are not held for the purpose of or with the effect of changing or influencing the control of the issuer of the securities and were not acquired and are not held in connection with or as a participant in any transaction having that purpose or effect, other than activities solely in connection with a nomination under § 240.14a-11. By signing below I certify that, to the best of my knowledge and belief, the securities referred to above were not acquired and are not held for the purpose of or with the effect of changing or influencing the control of the issuer of the securities and were not acquired and are not held in connection with or as a participant in any transaction having that purpose or effect, other than activities solely in connection with a nomination under § 240.14a-11.

SIGNATURE

After reasonable inquiry and to the best of my knowledge and belief, I certify that the information set forth in this statement is true, complete and correct.

MACKENZIE FINANCIAL CORP

Signature:	Gillian Seidler
Name/Title:	Vice-President & Chief Compliance Officer
Date:	05/15/2026