Canadian Solar COO corrects insider share holdings

Canadian Solar Inc. Chief Operating Officer Dylan Marx filed an amended insider ownership report.

Rhea-AI Filing Summary

Canadian Solar Inc. Chief Operating Officer Dylan Marx filed an amended insider ownership report. The Form 3/A corrects a clerical error in the number of common shares beneficially owned and now shows direct ownership of 2,140 common shares, with no new transactions reported.

Insider Trade Summary

1 transaction reported

Mixed 1 txn

Insider Marx Dylan

Role Chief Operating Officer

Type	Security	Shares	Price	Value
holding	Common Share	--	--	--

Holdings After Transaction: Common Share — 2,140 shares (Direct)

Footnotes (1)

1. F1. This Form 3 is being amended solely to correct a clerical error in the number of common shares beneficially owned by Mr. Dylan Marx.

Key Figures

Common shares beneficially owned: 2,140 shares

1 metrics

Common shares beneficially owned 2,140 shares Direct ownership reported following amendment

Key Terms

Form 3, beneficially owned, clerical error

3 terms

Form 3 regulatory

"This Form 3 is being amended solely to correct a clerical error"

Form 3 is the initial public filing that officers, directors and large shareholders must submit to report their ownership of a company’s securities when they become insiders. It acts like an opening inventory sheet that gives investors a starting point to see who holds significant stakes and to spot later trades or potential conflicts of interest, helping assess insider confidence and transparency.

beneficially owned financial

"error in the number of common shares beneficially owned by Mr. Dylan Marx"

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.

clerical error other

"being amended solely to correct a clerical error in the number of common shares"

FAQ

AI-generated questions and answers. How Rhea-AI works. Not financial advice.

What does the Canadian Solar (CSIQ) Form 3/A amendment report for Dylan Marx?

The Form 3/A shows that Canadian Solar COO Dylan Marx corrected a clerical error in his insider holdings. The amended filing reports he beneficially owns 2,140 common shares directly, with no new purchases or sales disclosed in this amendment.

How many Canadian Solar CSIQ shares does COO Dylan Marx beneficially own?

The amended filing reports that COO Dylan Marx beneficially owns 2,140 Canadian Solar common shares directly. This figure reflects a correction of an earlier clerical error in his Form 3 and is not tied to any new share transactions or option exercises.

Did the Canadian Solar CSIQ Form 3/A show any insider buying or selling by Dylan Marx?

No, the Form 3/A does not report new insider buying or selling by Dylan Marx. It is described as an amendment made solely to correct a clerical error in the previously reported number of common shares he beneficially owns, now listed as 2,140.

Why did Canadian Solar COO Dylan Marx amend his Form 3 insider report?

The amendment was filed solely to correct a clerical error in Dylan Marx’s originally reported holdings. The footnote explains that the Form 3 is being amended to fix the number of Canadian Solar common shares beneficially owned, which is now shown as 2,140.

What is Form 3/A in the context of Canadian Solar CSIQ insider filings?

Form 3/A is an amended initial ownership report for insiders of Canadian Solar. In this case, it updates COO Dylan Marx’s previously reported holdings by correcting a clerical error in the common share count, without introducing any new transactions or derivative positions.

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

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Accepted by SEC EDGAR 05/28/2026 - 06:16 AM EDT Learn about SEC filing dates

SEC Form 3

FORM 3

UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

INITIAL STATEMENT OF BENEFICIAL OWNERSHIP OF SECURITIES

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940

OMB APPROVAL

OMB Number:			3235-0104
Estimated average burden
hours per response:			0.5

1. Name and Address of Reporting Person^*

Marx Dylan

(Last) (First) (Middle)

C/O CANADIAN SOLAR INC.

4273 KING STREET EAST, SUITE 102

(Street)

KITCHENER N2P 2E9

(City) (State) (Zip)

ONTARIO, CANADA

(Country)

2. Date of Event Requiring Statement (Month/Day/Year)
03/18/2026

3. Issuer Name and Ticker or Trading Symbol
Canadian Solar Inc. [ CSIQ ]

3a. Foreign Trading Symbol

5. If Amendment, Date of Original Filed (Month/Day/Year)
03/18/2026

4. Relationship of Reporting Person(s) to Issuer
(Check all applicable)

	Director		10% Owner
X	Officer (give title below)		Other (specify below)
	Chief Operating Officer

6. Individual or Joint/Group Filing (Check Applicable Line)

X	Form filed by One Reporting Person
	Form filed by More than One Reporting Person

Table I - Non-Derivative Securities Beneficially Owned
1. Title of Security (Instr. 4)	2. Amount of Securities Beneficially Owned (Instr. 4)	3. Ownership Form: Direct (D) or Indirect (I) (Instr. 5)	4. Nature of Indirect Beneficial Ownership (Instr. 5)
Common Share	2,140(1)	D

Table II - Derivative Securities Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 4)	2. Date Exercisable and Expiration Date (Month/Day/Year)		3. Title and Amount of Securities Underlying Derivative Security (Instr. 4)		4. Conversion or Exercise Price of Derivative Security	5. Ownership Form: Direct (D) or Indirect (I) (Instr. 5)	6. Nature of Indirect Beneficial Ownership (Instr. 5)
	Date Exercisable	Expiration Date	Title	Amount or Number of Shares

Explanation of Responses:

1. This Form 3 is being amended solely to correct a clerical error in the number of common shares beneficially owned by Mr. Dylan Marx.

	/s/ Dylan Marx	05/28/2026
	** Signature of Reporting Person	Date
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* If the form is filed by more than one reporting person, see Instruction 5 (b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.
* Form 3: SEC 1473 (03-26)