Use these links to rapidly review the document
TABLE OF CONTENTS

Table of Contents

 

UNITED STATES
SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

---

FORM 6-K

---

REPORT OF FOREIGN PRIVATE ISSUER
PURSUANT TO RULE 13a-16 OR 15d-16 UNDER
THE SECURITIES EXCHANGE ACT OF 1934

For the month of January 2016

Commission File Number: 001-33107

---

CANADIAN SOLAR INC.

---

545 Speedvale Avenue West
Guelph, Ontario, Canada N1K 1E6
(Address of principal executive office)

Indicate by check mark whether the registrant files or will file annual reports under cover of Form 20-F or Form 40-F.

Form 20-F ý            Form 40-F o

Indicate by check mark if the registrant is submitting the Form 6-K in paper as permitted by Regulation S-T Rule 101(b)(1): o

Indicate by check mark if the registrant is submitting the Form 6-K in paper as permitted by Regulation S-T Rule 101(b)(7): o

   

---

Table of Contents

CANADIAN SOLAR INC.

Form 6-K

TABLE OF CONTENTS

2

---

Table of Contents

INCORPORATION BY REFERENCE

        The documents attached as exhibits 99.1 and 99.2 to this 6-K shall be incorporated by reference into the Registrant's Registration Statement on Form F-3 initially filed on January 4, 2016 (No. 333-208828).

        The Registrant is filing material documents not previously filed.

3

---

Table of Contents

SIGNATURE

        Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned, thereunto duly authorized.

Date: January 4, 2016

4

---

Table of Contents

EXHIBIT INDEX

The following documents are filed as part of this Form 6-K:

Exhibit 99.1—Summary Consolidated Financial and Operating Data, Management's Discussion and Analysis of Financial Condition and Results of Operations for the Nine Months Ended September 30, 2014 and 2015, and Recent Developments

Exhibit 99.2—Unaudited Condensed Consolidated Financial Statements as of and for the Nine Months Ended September 30, 2014 and 2015

5

---