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 May 2022

Commission File Number: 001-40199

Greenbrook TMS Inc. 

(Translation of the registrant’s name into English)

890 Yonge Street, 7^th Floor 

Toronto, Ontario 

Canada M4W 3P4 

(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  x            Form 40-F  ¨

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):  ¨

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):  ¨

EXHIBIT INDEX

The following documents, which are attached as exhibits hereto, are incorporated by reference herein:

Exhibit	Title
99.1	Notice of Meeting and Management Information Circular, dated May 11, 2022
99.2	Form of Proxy

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.

	GREENBROOK TMS INC.
Date: May 20, 2022	By:	/s/ Bill Leonard
		Name: Bill Leonard
		Title: President & CEO