What do the Restricted Share Units mean in the Canadian Solar (CSIQ) Form 4?

The Form 4 shows 2,717 Restricted Share Units converting into Common Stock and a remaining balance of 15,027 RSUs. RSUs are equity awards that typically convert into shares over time, aligning executive compensation with company performance and long-term shareholder value.

Canadian Solar (CSIQ) COO exercises RSUs and withholds shares for taxes

Filing Impact

(Neutral)

Filing Sentiment

(Neutral)

Form Type

Rhea-AI Filing Summary

Canadian Solar Inc. Chief Operating Officer Dylan Marx reported routine equity compensation activity. On May 13, 2026, he exercised 2,717 Restricted Share Units into Common Stock and, in a separate transaction, 1,604 shares were disposed of to cover tax obligations at $19.83 per share. Net of tax withholding, he effectively received additional shares and now directly holds 3,827 Common shares, along with 15,027 Restricted Share Units following the transactions.

Insider Trade Summary

2,717 shares exercised/converted

Mixed 3 txns

Insider Marx Dylan

Role Chief Operating Officer

Type	Security	Shares	Price	Value
Exercise	Restricted Share Units	2,717	$0.00	--
Exercise	Common Stock	2,717	$0.00	--
Tax Withholding	Common Stock	1,604	$19.83	$32K

Holdings After Transaction: Restricted Share Units — 15,027 shares (Direct, null); Common Stock — 3,827 shares (Direct, null)

Footnotes (1)

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Key Figures

RSUs exercised: 2,717 units Shares withheld for taxes: 1,604 shares Tax-withholding price: $19.83/share +2 more

5 metrics

RSUs exercised 2,717 units Restricted Share Units converted to Common Stock on May 13, 2026

Shares withheld for taxes 1,604 shares Tax-withholding disposition at $19.83 per share on May 13, 2026

Tax-withholding price $19.83/share Price per share for non-derivative tax-withholding transaction

Common shares after transactions 3,827 shares Direct Common Stock ownership following Form 4 transactions

RSU balance after exercise 15,027 units Restricted Share Units remaining after 2,717-unit conversion

Key Terms

Restricted Share Units, derivative security, tax-withholding disposition, Form 4, +1 more

5 terms

derivative security financial

"transaction_code_description": "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.

tax-withholding disposition financial

"transaction_action": "tax-withholding disposition""

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.

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.

Chief Operating Officer financial

"officer_title": "Chief Operating Officer""

A chief operating officer (COO) is a senior executive responsible for overseeing the day-to-day activities of a company, ensuring that all parts of the organization work smoothly and efficiently. They often act like a company's operational quarterback, translating strategic plans into practical actions. For investors, the COO's effectiveness can influence a company's performance and stability, making them an important figure in assessing the company's management strength.

Form 4 Insider Transactions: What Each Field Means →

05/14/2026 - 08:08 PM

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^*

Marx Dylan

(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)

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

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
05/13/2026

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)
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	Code	V	Amount	(A) or (D)	Price		6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
Common Stock	05/13/2026		M		2,717	A	$0.00	3,827	D
Common Stock	05/13/2026		F		1,604	D	$19.83	2,223	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)
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)	Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares	8. Price of Derivative Security (Instr. 5)		10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)
Restricted Share Units	$0.00	05/13/2026		M			2,717	05/12/2026	⁽¹⁾	Common Stock	2,717	$0.00	15,027	D

Explanation of Responses:

1. These RSUs have no expiration date.

	/s/ Dylan Marx	05/14/2026
	** 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)

Source: View Original Filing on SEC EDGAR

FAQ

What insider activity did Canadian Solar (CSIQ) report for COO Dylan Marx?

Canadian Solar’s COO Dylan Marx exercised 2,717 Restricted Share Units into Common Stock and had 1,604 shares withheld to cover taxes at $19.83 per share. These transactions reflect routine equity compensation events rather than open-market buying or selling.

Did Canadian Solar (CSIQ) COO Dylan Marx buy or sell shares on the market?

The filing does not show open-market purchases or sales. It reports an RSU exercise and a tax-withholding disposition, where 1,604 shares were delivered to cover obligations, a standard mechanism rather than discretionary trading in the market.

How many Canadian Solar (CSIQ) shares does the COO hold after these transactions?

After the reported transactions, COO Dylan Marx directly holds 3,827 shares of Canadian Solar Common Stock and 15,027 Restricted Share Units. These figures come from the post-transaction ownership columns in the Form 4 insider report dated May 13, 2026.

What was the price used for the Canadian Solar (CSIQ) tax-withholding shares?

The 1,604 Canadian Solar shares used for tax withholding were valued at $19.83 per share. This price is reported in the Form 4 as the transaction price per share for the non-derivative tax-withholding disposition on May 13, 2026.

Is the Canadian Solar (CSIQ) COO’s Form 4 transaction a strong trading signal?

The activity is mainly compensation-related, involving RSU exercise and tax withholding, not open-market buying or selling. Such transactions usually carry limited signaling value because they follow preset vesting schedules and tax requirements rather than discretionary investment decisions.