Mr. Christian Mayer reports

COLLIERS INTERNATIONAL GROUP INC. ANNOUNCES US$300 MILLION BOUGHT DEAL PUBLIC offERING OF EQUITY

Colliers International Group Inc. has entered into an agreement with a syndicate of underwriters led by BMO Capital Markets and J.P. Morgan, under which the underwriters have agreed to buy on a bought deal basis 2,479,500 subordinate voting shares, at a price of $121.00 (U.S.) per subordinate voting share for gross proceeds of approximately $300-million (U.S.). Colliers has granted the underwriters an option, exercisable at the offering price for a period of 30 days following the closing of the offering, to purchase up to an additional 15 per cent of the offering to cover overallotments, if any. The offering is expected to close on or about Feb. 28, 2024.

The net proceeds of the offering will be used to repay balances outstanding on the company's credit facility and are intended to create additional capacity to finance potential future acquisition opportunities and growth initiatives, and for general corporate purposes.

The subordinate voting shares are being offered for sale pursuant to the offering in all of the provinces and territories of Canada, other than Quebec, by way of a prospectus supplement to the company's Canadian short form base shelf prospectus dated Feb. 20, 2024. The subordinate voting shares are being offered for sale in the public offering in the United States pursuant to an effective registration statement on Form F-10 filed under the Canada/United States multijurisdictional disclosure system. Before investing, prospective purchasers in Canada should read the prospectus supplement, the base shelf prospectus and the documents incorporated by reference therein, and prospective purchasers in the United States should read the Registration statement and the documents incorporated by reference therein for more complete information about the company and the offering. Subordinate voting shares may also be offered on a private placement basis in other international jurisdictions in reliance on applicable private placement exemptions.

Copies of the prospectus supplement, the base shelf prospectus and the registration statement, when available, may be obtained upon request in Canada by contacting BMO Nesbitt Burns Inc., Brampton Distribution Centre C/O The Data Group of Companies, 9195 Torbram Rd., Brampton, Ont., L6S 6H2, by telephone at 905-791-3151 extension 4312 or by e-mail at torbramwarehouse@datagroup.ca, or J.P. Morgan Securities Canada Inc., suite 4500, TD Bank Tower, 66 Wellington St. West, Toronto, Ont., M5K 1E7, or by telephone: Canada Sales 416-981-9233 and in the United States by contacting BMO Capital Markets Corp., attention: Equity Syndicate Department, 151 W 42nd St., 32nd floor, New York, N.Y., 10036, or by telephone at 800-414-3627 or by e-mail at bmoprospectus@bmo.com, or J.P. Morgan Securities LLC, c/o Broadridge Financial Solutions, 1155 Long Island Ave., Edgewood, N.Y., 11717, phone: 866-803-9204. Copies of the applicable offering documents, when available, can be obtained free of charge under the company's profile on SEDAR+ and EDGAR.

About Colliers International Group Inc.

Colliers is a leading diversified professional services and investment management company. With operations in 66 countries, its 19,000 enterprising professionals work collaboratively to provide expert real estate and investment advice to clients. For more than 28 years, the company's experienced leadership with significant inside ownership has delivered compound annual investment returns of approximately 20 per cent for shareholders. With annual revenues of $4.3-billion and $98-billion of assets under management, Colliers maximizes the potential of property and real assets to accelerate the success of its clients, its investors and its people.

We seek Safe Harbor.