Canadian Solar (CSIQ) director discloses 21,538 RSUs in Form 3

Rhea-AI Filing Summary

Canadian Solar Inc. director Harry E. Ruda has reported initial beneficial ownership of restricted share units representing 21,538 underlying common shares. Each RSU gives a right to receive one common share upon vesting.

The position includes multiple blocks of unvested RSUs that vest on specific dates from April 1, 2026 through January 1, 2029, providing a staggered schedule of potential future share delivery tied to continued service or other vesting conditions.

Insider Trade Summary

1 transaction reported

Mixed 1 txn

Insider Ruda Harry E

Role Director

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

Holdings After Transaction: Restricted Share Unit — 21,538 shares (Direct)

Footnotes (1)

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.

Understanding Insider Trading Forms →

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^*

Ruda Harry E

(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)

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	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/ Harry Eugen Ruda	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)

FAQ

What insider position did Harry E. Ruda report at Canadian Solar (CSIQ)?

Harry E. Ruda reported beneficial ownership of restricted share units representing 21,538 underlying Canadian Solar common shares. These RSUs give him a contingent right to receive one common share each when they vest over several future dates.

What type of securities does the Canadian Solar (CSIQ) Form 3 disclose?

The Form 3 discloses holdings of restricted share units, each linked to one Canadian Solar common share. These RSUs are equity-based awards that convert into common shares only after specific vesting dates are reached under the company’s compensation arrangements.

How many Canadian Solar (CSIQ) shares are tied to Harry Ruda’s RSUs?

Harry Ruda’s reported restricted share units are tied to 21,538 underlying Canadian Solar common shares. This figure represents the total potential shares he may receive if all RSUs vest according to the detailed schedule extending through early 2029.

When do Harry Ruda’s Canadian Solar (CSIQ) RSUs vest?

The RSUs vest in stages between April 1, 2026 and January 1, 2029. The schedule lists multiple unvested blocks of RSUs with specific vesting dates roughly every quarter, creating a long-term, time-based incentive structure for the director.

Does the Canadian Solar (CSIQ) Form 3 show any insider share purchases or sales?

The Form 3 presents Harry Ruda’s existing restricted share unit holdings and related underlying common shares. It functions as an initial ownership statement and does not report open-market purchases, sales, or option exercises, focusing instead on his RSU-based equity position.