Canadian Solar COO exercises shares, withholds for tax

Canadian Solar Inc. Chief Operating Officer Dylan Marx reported routine equity compensation-related transactions.

Rhea-AI Filing Summary

Canadian Solar Inc. Chief Operating Officer Dylan Marx reported routine equity compensation-related transactions. On May 13, 2026, he exercised rights to acquire 2,717 shares of common stock in a derivative exercise/conversion recorded at $0.0000 per share. On the same date, 1,604 shares were disposed of in a tax-withholding transaction at $19.83 per share to cover tax obligations, rather than through an open-market sale. These moves reflect an exercise-and-hold pattern with shares withheld only to satisfy tax liabilities.

Insider Trade Summary

2 transactions reported

Mixed 2 txns

Insider Marx Dylan

Role Chief Operating Officer

Type	Security	Shares	Price	Value
Exercise	Common Stock	2,717	$0.00	$0.00
Exercise Price or Tax Liability	Common Stock	1,604	$19.83	$32K

Holdings After Transaction: Common Stock — 3,253 shares (Direct)

Key Figures

Tax-withholding shares: 1,604 shares Tax-withholding price: $19.83 per share Shares acquired via exercise: 2,717 shares +3 more

6 metrics

Tax-withholding shares 1,604 shares Common Stock disposed to cover tax liability at $19.83/share on May 13, 2026

Tax-withholding price $19.83 per share Value applied to 1,604 shares delivered for taxes on May 13, 2026

Shares acquired via exercise 2,717 shares Common Stock from derivative exercise/conversion on May 13, 2026

Exercise transaction price $0.0000 per share Recorded price for derivative exercise/conversion of 2,717 shares

Direct holdings after exercise 4,857 shares Common Stock owned directly following the exercise transaction

Direct holdings after tax withholding 3,253 shares Common Stock owned directly following the tax-withholding disposition

Key Terms

tax-withholding disposition, derivative exercise/conversion, Exercise or conversion of derivative security, Payment of exercise price or tax liability by delivering securities

4 terms

tax-withholding disposition financial

"transaction_action: "tax-withholding disposition""

A tax-withholding disposition is an event or transaction—such as selling or transferring securities, exercising options, or receiving compensation—that triggers a requirement to hold back part of the payment and remit it to tax authorities. It matters to investors because it reduces the cash they receive immediately and can change the timing and amount of taxable income, like a cashier taking a portion of your sale proceeds to pay taxes before you get the rest.

derivative exercise/conversion financial

"transaction_action: "derivative exercise/conversion""

Exercise or conversion of derivative security financial

"transaction_code_description: "Exercise or conversion of derivative security""

Payment of exercise price or tax liability by delivering securities financial

"transaction_code_description: "Payment of exercise price or tax liability by delivering securities""

FAQ

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

What insider transactions did Canadian Solar (CSIQ) COO Dylan Marx report?

Dylan Marx reported exercising rights to acquire 2,717 Canadian Solar common shares and a related tax-withholding disposition of 1,604 shares. The filing classifies the acquisition as a derivative exercise and the disposition as payment of tax liability using shares, not an open-market trade.

Was the Canadian Solar (CSIQ) COO’s Form 4/A transaction an open-market stock sale?

No, the disposition was classified as a tax-withholding transaction, not an open-market sale. The filing states 1,604 shares were delivered to satisfy tax obligations associated with equity compensation, which is a mechanical step rather than a discretionary sale into the market.

How many Canadian Solar (CSIQ) shares did the COO acquire in the latest Form 4/A?

The COO acquired 2,717 shares of Canadian Solar common stock through a derivative exercise or conversion. This transaction was recorded at a price of $0.0000 per share, consistent with exercising previously granted equity awards rather than buying shares on the open market.

What price was used for the Canadian Solar (CSIQ) tax-withholding share disposition?

The tax-withholding disposition used a price of $19.83 per share for 1,604 shares. This reflects the value applied to shares delivered to cover tax liabilities arising from the equity award exercise, as opposed to a voluntary sale on a stock exchange.

Does the Canadian Solar (CSIQ) Form 4/A show remaining holdings for the COO after these transactions?

Yes, one transaction line shows 4,857 shares of common stock owned directly following the exercise, and another shows 3,253 shares following the tax-withholding disposition. These figures indicate his reported direct ownership after each respective step on May 13, 2026.

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

Form 4 Insider Transactions: What Each Field Means →

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Accepted by SEC EDGAR 05/28/2026 - 06:22 AM EDT Learn about SEC filing dates

SEC Form 4

FORM 4

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

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

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:			3235-0287
Estimated average burden
hours per response:			0.5

Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

Check this box to indicate that a transaction was made pursuant to a contract, instruction or written plan for the purchase or sale of equity securities of the issuer that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). See Instruction 10.

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

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

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

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
05/13/2026

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

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

4. If Amendment, Date of Original Filed (Month/Day/Year)
05/14/2026

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	3. Transaction Code (Instr. 8)		4. Securities Acquired (A) or Disposed Of (D) (Instr. 3, 4 and 5)			5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4)	6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
			Code	V	Amount	(A) or (D)	Price
Common Stock	05/13/2026		M		2,717	A	$0	4,857	D
Common Stock	05/13/2026		F		1,604	D	$19.83	3,253	D

Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 3)	2. Conversion or Exercise Price of Derivative Security	3. Transaction Date (Month/Day/Year)	3A. Deemed Execution Date, if any (Month/Day/Year)	4. Transaction Code (Instr. 8)		5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5)		6. Date Exercisable and Expiration Date (Month/Day/Year)		7. Title and Amount of Securities Underlying Derivative Security (Instr. 3 and 4)		8. Price of Derivative Security (Instr. 5)	9. Number of derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4)	10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)
				Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares

Explanation of Responses:

Remarks:

This Form 4 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 4 (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 4: SEC 1474 (03-26)