Exchange Bulletin

Security:

Common shares

Symbol(s):

GTMS

Number of securities issued and outstanding:

47,524,375 common shares

Number of securities reserved for issuance:

5,256,083 common shares

Listing category:

Technology, Non-Exempt Issuer

Trading currency:

CDN$

Listing and posted for trading date:

October 3, 2018 (at the opening)

Other market(s):

Not Applicable

Designated market maker:

Citadel Securities Canada ULC

Security ownership registration:

Non-certificated inventory system of CDS

Investor relations:

Erns Loubser

(416) 322-9700 ext. 548

eloubser@greenbrooktms.com

Incorporation:

Business Corporations Act (Ontario)

Fiscal year end:

December 31

Nature of business:

The Company controls and operates a network of outpatient mental health services centers that specialize in the provision of Transcranial Magnetic Stimulation therapy for the treatment of depression and related psychiatric services.

Transfer agent and registrar:

Computershare Investor Services Inc. at its principal office in Toronto.

Dividends:

None anticipated in the foreseeable future.

Recent Financing:

On March 16, 2018, the Company completed a private placement of 9,271,000 special warrants at a subscription price of US$2.00 per special warrant (the "Offering Price") for aggregate gross proceeds of US$18,542,000 and on June 7, 2018 the Company completed a private placement of 729,000 special warrants at the Offering Price for aggregate gross proceeds of US$1,458,000 pursuant to a second tranche issuance of special warrants.

Sponsorship:

Bloom Burton Securities Inc.

Disclosure document:

The Company's long-form prospectus dated September 27, 2018. Capitalized terms not otherwise defined herein are as defined in the disclosure document.

TSX contact:

Julie K. Shin, Managing Director, Toronto Stock Exchange.