Canadian Solar (CSIQ) director nets 805 shares after RSU vesting

Rhea-AI Filing Summary

Canadian Solar Inc. director Leslie Li Hsien Chang reported routine equity compensation activity. On July 2, 2026, Chang exercised 809 Restricted Share Units, receiving the same number of common shares at a stated price of $0.00 per share.

To cover tax obligations, 4 common shares were disposed of at $15.69 per share through a tax-withholding transaction, leaving 805 common shares held directly after the transactions. Following the RSU conversion, Chang also holds 22,159 RSUs, which have no expiration date.

Insider Trade Summary

809 shares exercised/converted

Mixed 3 txns

Insider Chang Leslie Li Hsien

Role null

Type	Security	Shares	Price	Value
Exercise	Restricted Share Units	809	$0.00	--
Exercise	Common Stock	809	$0.00	--
Tax Withholding	Common Stock	4	$15.69	$62.76

Holdings After Transaction: Restricted Share Units — 22,159 shares (Direct, null); Common Stock — 809 shares (Direct, null)

Footnotes (1)

1. [object Object]

Key Figures

RSUs exercised: 809 units Tax-withheld shares: 4 shares at $15.69 Common shares after transaction: 805 shares +1 more

4 metrics

RSUs exercised 809 units Converted into common stock on July 2, 2026

Tax-withheld shares 4 shares at $15.69 Shares delivered to cover tax liability

Common shares after transaction 805 shares Direct holdings following Form 4 transactions

RSUs remaining 22,159 units Restricted Share Units outstanding after exercise, no expiration date

Key Terms

Restricted Share Units, tax-withholding disposition, derivative exercise/conversion, derivative security

4 terms

Restricted Share Units financial

"The director holds 22,159 RSUs, described as Restricted Share Units that convert into common stock."

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

"A tax-withholding disposition of 4 common shares at $15.69 per share was reported."

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

"The RSU transaction is labeled as a derivative exercise/conversion of 809 units into common stock."

derivative security financial

"The filing describes the RSUs as a derivative security that can be exercised into common stock."

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.

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Form 4 Insider Transactions: What Each Field Means →

Available on EDGAR 07/06/2026 - 09:21 AM Accepted by SEC EDGAR 07/06/2026 - 09:20 AM 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^*

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)
07/02/2026

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	07/02/2026		M		809	A	$0.00	809	D
Common Stock	07/02/2026		F		4	D	$15.69	805	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	07/02/2026		M			809	07/01/2026	(1)	Common Stock	809	$0.00	22,159	D

Explanation of Responses:

1. These RSUs have no expiration date.

	/s/ Leslie Chang	07/06/2026
	** 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 transaction did Canadian Solar (CSIQ) report for Leslie Li Hsien Chang?

Canadian Solar reported that director Leslie Li Hsien Chang exercised 809 Restricted Share Units into common stock. As part of this compensation-related event, a small portion of shares was used to cover tax obligations through a tax-withholding disposition.

How many Canadian Solar (CSIQ) shares did the director acquire and dispose in this Form 4?

The director acquired 809 common shares by exercising Restricted Share Units. Of these, 4 common shares were disposed of at $15.69 per share for tax withholding, resulting in 805 common shares held directly after the transactions.

What does the tax-withholding disposition mean in the Canadian Solar (CSIQ) Form 4?

The tax-withholding disposition reflects 4 Canadian Solar common shares delivered at $15.69 per share to satisfy tax obligations. This is not an open-market sale but a mechanism for paying taxes on the equity award exercised by the director.

How many Restricted Share Units does the Canadian Solar (CSIQ) director still hold?

After exercising 809 Restricted Share Units into common stock, the director holds 22,159 RSUs. A footnote explains that these RSUs have no expiration date, meaning they remain outstanding until settled under Canadian Solar’s equity award terms.

Is the Canadian Solar (CSIQ) insider transaction a market buy or sell?

The filing shows a derivative exercise and a small tax-withholding disposition, not open-market buying or selling. The director received shares from vested RSUs, and a few shares were delivered to cover tax liabilities associated with that equity compensation.