How many restricted share units does the Canadian Solar (CSIQ) director hold?

He holds 21,538 restricted share units. These RSUs are tied to Canadian Solar common shares and will convert into the same number of common shares when they vest, subject to their individual vesting schedules.

What does each restricted share unit represent for Canadian Solar (CSIQ)?

Each restricted share unit represents a contingent right to receive one Canadian Solar common share upon vesting. Once an RSU vests on its scheduled date, it converts into a single common share for the director.

Canadian Solar (CSIQ) director details RSU awards and share holdings

Filing Impact

(Neutral)

Filing Sentiment

(Neutral)

Form Type

Rhea-AI Filing Summary

Canadian Solar Inc. director Chang Leslie Li Hsien reports his equity holdings in the company. He holds 21,538 restricted share units (RSUs) tied to common shares and 1,001 common shares directly. The RSUs vest in multiple tranches from April 1, 2026 through January 1, 2029, each delivering one common share upon vesting.

Insider Trade Summary

2 transactions reported

Mixed 2 txns

Insider Chang Leslie Li Hsien

Role Director

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

Holdings After Transaction: Restricted Share Unit — 21,538 shares (Direct); Common Share — 1,001 shares (Direct)

Footnotes (1)

Includes (i) 770 unvested RSUs, which will vest on April 1, 2026; (ii) 809 unvested RSUs, which will vest on July 1, 2026; (iii) 1,203 unvested RSUs, which will vest on October 1, 2026, (iv) 1,157 unvested RSUs, which will vest on January 1, 2027; (v) 1,602 unvested RSUs, which will vest on April 1, 2027; (vi) 1,953 unvested RSUs, which will vest on July 1, 2027; (vii) 1,955 unvested RSUs, which will vest on October 1, 2027; (viii) 2,629 unvested RSUs, which will vest on January 1, 2028; (ix) 3,180 unvested RSUs, which will vest on April 1, 2028; (x) 2,731 unvested RSUs, which will vest on July 1, 2028; (xi) 2,303 unvested RSUs, which will vest on October 1, 2028; and (xii) 1,246 unvested RSUs, which will vest on January 1, 2029. Each RSU represents a contingent right to receive one share of the Issuer's Common Share upon vesting.

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Accepted by SEC EDGAR 03/18/2026 - 11:58 AM

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^*

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)

UNITED STATES

(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)

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

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

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	1,001	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)
1. Title of Derivative Security (Instr. 4)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares	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)
Restricted Share Unit	⁽¹⁾	⁽¹⁾	Common Share	21,538	⁽²⁾	D

Explanation of Responses:

1. Includes (i) 770 unvested RSUs, which will vest on April 1, 2026; (ii) 809 unvested RSUs, which will vest on July 1, 2026; (iii) 1,203 unvested RSUs, which will vest on October 1, 2026, (iv) 1,157 unvested RSUs, which will vest on January 1, 2027; (v) 1,602 unvested RSUs, which will vest on April 1, 2027; (vi) 1,953 unvested RSUs, which will vest on July 1, 2027; (vii) 1,955 unvested RSUs, which will vest on October 1, 2027; (viii) 2,629 unvested RSUs, which will vest on January 1, 2028; (ix) 3,180 unvested RSUs, which will vest on April 1, 2028; (x) 2,731 unvested RSUs, which will vest on July 1, 2028; (xi) 2,303 unvested RSUs, which will vest on October 1, 2028; and (xii) 1,246 unvested RSUs, which will vest on January 1, 2029.

2. Each RSU represents a contingent right to receive one share of the Issuer's Common Share upon vesting.

	/s/ Leslie Chang	03/18/2026
	** 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)

Source: View Original Filing on SEC EDGAR

FAQ

What does Canadian Solar (CSIQ) director Chang Leslie Li Hsien report in this Form 3?

He reports his current equity holdings in Canadian Solar. This includes 21,538 restricted share units linked to common shares and 1,001 common shares held directly, establishing his baseline ownership position as a director.

When do the Canadian Solar (CSIQ) director’s RSUs vest?

His RSUs vest in multiple tranches between April 1, 2026 and January 1, 2029. Specific blocks of units are scheduled to vest on several dates in 2026, 2027 and 2028, plus January 1, 2029.

How many Canadian Solar (CSIQ) common shares does the director directly own?

He directly owns 1,001 Canadian Solar common shares. This figure represents his direct share ownership separate from restricted share units, which will only convert into additional common shares as they vest over time.

Does this Canadian Solar (CSIQ) Form 3 show any insider buying or selling?

It does not show any explicit insider buying or selling activity. The entries reflect holdings, including restricted share units and common shares, rather than new market transactions or option exercises by the director.