Canadian Solar (CSIQ) lead counsel details initial equity holdings

Rhea-AI Filing Summary

Canadian Solar Inc. executive Chen Yu (Kang), the Lead General Counsel, reported initial ownership of company equity. The Form 3 shows direct holdings of 2,668 Common Shares and Restricted Share Units representing 14,657 underlying Common Shares.

Footnotes explain that the RSUs include 3,813 unvested units scheduled to vest in two approximately equal annual installments beginning on December 18, 2026, and 10,844 unvested units scheduled to vest in four equal annual installments beginning on May 12, 2026. Each RSU converts into one Common Share upon vesting, meaning future share ownership will increase as these awards vest over time.

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

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1. Name and Address of Reporting Person^*

Chen Yu (Kang)

(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)

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

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

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	2,668	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
Restricted Share Unit	(1)	(1)	Common Share	14,657	(2)	D

Explanation of Responses:

1. Includes (i) 3,813 unvested RSUs, which will vest in two approximately equal annual installments beginning on December 18, 2026; and (ii) 10,844 unvested RSUs, which will vest in four equal annual installments beginning on May 12, 2026.

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

	/s/ Yu Chen	03/25/2026
	** 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.
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* Form 3: SEC 1473 (03-26)

FAQ

What does the Canadian Solar (CSIQ) Form 3 filing by Chen Yu (Kang) show?

The Form 3 shows Lead General Counsel Chen Yu (Kang) reporting initial ownership in Canadian Solar. It lists 2,668 directly held Common Shares and Restricted Share Units tied to 14,657 underlying shares, providing a baseline of her equity position as an insider.

How many Canadian Solar (CSIQ) RSUs does Chen Yu (Kang) hold?

Chen Yu (Kang) holds Restricted Share Units tied to 14,657 underlying Common Shares. These include 3,813 unvested RSUs vesting in two annual installments and 10,844 unvested RSUs vesting in four annual installments, establishing a schedule for her future share ownership growth.

When will Chen Yu (Kang)’s Canadian Solar (CSIQ) RSUs vest?

Her RSUs vest in two separate schedules. 3,813 unvested units vest in two approximately equal annual installments beginning December 18, 2026. Another 10,844 unvested units vest in four equal annual installments beginning May 12, 2026, subject to continued eligibility.

What does each Canadian Solar (CSIQ) RSU represent in this Form 3?

Each Restricted Share Unit represents a contingent right to receive one Common Share upon vesting. This means when an RSU vests, it converts into a single Canadian Solar Common Share, directly increasing the insider’s share ownership over the vesting period.

How many Canadian Solar (CSIQ) common shares does Chen Yu (Kang) directly own?

The filing shows direct ownership of 2,668 Common Shares by Chen Yu (Kang). In addition, she holds Restricted Share Units tied to 14,657 underlying Common Shares, which will convert into additional shares as the RSUs vest over future years.