Canadian Solar (CSIQ) director exercises 770 RSUs with small tax withholding

Rhea-AI Filing Summary

Canadian Solar Inc. director Leslie Li Hsien Chang reported routine equity compensation activity. On April 2, 2026, Chang received a grant of 2,200 Restricted Share Units (RSUs), each tied to one share of common stock, with no expiration date. On the same day, 770 previously granted RSUs vested and were exercised into 770 shares of common stock at a conversion price of $0.00 per share. Of these shares, 4 were withheld at $13.21 per share to cover tax obligations, a non-market disposition, leaving Chang with 1,767 shares of common stock held directly after the transactions.

Insider Trade Summary

770 shares exercised/converted

Mixed 4 txns

Insider Chang Leslie Li Hsien

Role Director

Type	Security	Shares	Price	Value
Grant/Award	Restricted Share Units	2,200	$0.00	--
Exercise	Restricted Share Units	770	$0.00	--
Exercise	Common Stock	770	$0.00	--
Tax Withholding	Common Stock	4	$13.21	$52.84

Holdings After Transaction: Restricted Share Units — 23,738 shares (Direct); Common Stock — 1,771 shares (Direct)

Footnotes (1)

1. These RSUs were granted on April 1, 2026 and processed on April 2, 2026, and have no expiration date. These RSUs have no expiration date.

Key Figures

RSU grant: 2,200 units RSUs exercised: 770 units Tax-withheld shares: 4 shares at $13.21 +2 more

5 metrics

RSU grant 2,200 units Restricted Share Units granted on April 1, 2026

RSUs exercised 770 units RSUs converted into common stock on April 2, 2026

Tax-withheld shares 4 shares at $13.21 Shares withheld to satisfy tax obligations

Post-transaction common shares 1,767 shares Common stock held directly after transactions

Exercise price for RSUs $0.00 per share Conversion price for 770 RSUs exercised

Key Terms

Restricted Share Units, tax-withholding disposition, derivative security, Form 4

4 terms

Restricted Share Units financial

"These RSUs were granted on April 1, 2026 and processed on April 2, 2026, and have no expiration date."

Restricted share units (RSUs) are a promise from a company to give an employee or service provider actual shares or cash equal to the shares after certain conditions are met, typically staying with the company for a set time or hitting performance targets. Think of them like a time-locked gift card that becomes usable only after you’ve earned it. For investors, RSUs matter because they align employee incentives with company performance and can increase the number of shares outstanding over time, diluting existing ownership and affecting earnings per share.

tax-withholding disposition financial

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

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 security financial

"Exercise or conversion of derivative security"

A derivative security is a financial contract whose value comes from the price or performance of something else, such as a stock, bond, commodity, or market index. For investors it acts like an insurance policy or a wager: it can be used to protect against losses, lock in prices, or amplify gains and losses, so it can change a portfolio’s risk and potential return without owning the underlying asset directly.

Form 4 regulatory

"INSIDER FILING DATA (Form 4):"

Form 4 is a official document that company insiders, such as executives or major shareholders, file with regulators whenever they buy or sell company shares. It provides transparency about how those with inside knowledge are trading, helping investors see if insiders are confident in the company's prospects or may be selling for personal reasons. This information can influence investor decisions by revealing insiders' perspectives on the company's value.

Form 4 Insider Transactions: What Each Field Means →

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^*

Chang Leslie Li Hsien

(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)

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

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
04/02/2026

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)

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	04/02/2026		M		770	A	$0.00	1,771	D
Common Stock	04/02/2026		F		4	D	$13.21	1,767	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
Restricted Share Units	$0.00	04/02/2026		A		2,200		04/01/2029	(1)	Common Stock	2,200	$0.00	23,738	D
Restricted Share Units	$0.00	04/02/2026		M			770	04/01/2026	(2)	Common Stock	770	$0.00	22,968	D

Explanation of Responses:

1. These RSUs were granted on April 1, 2026 and processed on April 2, 2026, and have no expiration date.

2. These RSUs have no expiration date.

	/s/ Leslie Chang	04/06/2026
	** 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)

FAQ

What insider transactions did Canadian Solar (CSIQ) report for Leslie Li Hsien Chang?

Canadian Solar director Leslie Li Hsien Chang reported a grant of 2,200 Restricted Share Units and the vesting of 770 RSUs into common shares. A small portion, 4 shares, was withheld to satisfy tax obligations, leaving 1,767 common shares held directly after these transactions.

Was the Canadian Solar (CSIQ) Form 4 a stock purchase or sale?

The Form 4 mainly reflects equity compensation, not an open-market trade. Chang received 2,200 RSUs and exercised 770 RSUs into common shares, with 4 shares withheld for taxes. No open-market buying or selling was reported in this filing.

How many Canadian Solar (CSIQ) shares does Leslie Li Hsien Chang hold after the Form 4?

After the reported transactions, Leslie Li Hsien Chang holds 1,767 shares of Canadian Solar common stock directly. This follows the conversion of 770 RSUs into shares and a tax-withholding disposition of 4 shares at $13.21 per share.

What Restricted Share Unit activity did Canadian Solar (CSIQ) disclose for its director?

Canadian Solar disclosed that director Leslie Li Hsien Chang received a grant of 2,200 Restricted Share Units on April 1, 2026, processed April 2. Separately, 770 previously granted RSUs vested and were exercised into common stock at a $0.00 conversion price.

Did the Canadian Solar (CSIQ) insider Form 4 include a significant tax-related share disposition?

The filing shows only a small tax-related disposition. Of the 770 common shares issued from RSU vesting, 4 shares were withheld at $13.21 per share to cover tax obligations, while the remaining shares were retained directly by the director.