Mr. Christian Mayer reports

COLLIERS ANNOUNCES NORMAL COURSE ISSUER BID

The Toronto Stock Exchange has accepted a notice of Colliers International Group Inc.'s intention to make a normal course issuer bid with respect to its outstanding subordinate voting shares.

The notice provides that Colliers may, during the 12-month period commencing May 9, 2025, and ending no later than May 8, 2026, purchase, through the facilities of the TSX, alternative Canadian trading systems or the Nasdaq Stock Market, up to 4.3 million subordinate voting shares in total, being approximately 10 per cent of the 43,457,718 shares comprising the public float as of April 30, 2025, of such class of shares. Purchases of subordinate voting shares through Nasdaq will be made in the normal course and will not, during the 12-month period ending May 8, 2026, exceed, in the aggregate, 5 per cent of the outstanding subordinate voting shares as at the commencement of the NCIB. The price that Colliers will pay for any such shares will be the market price at the time of acquisition. During the period of this NCIB, Colliers may make purchases under the NCIB by means of open-market transactions or otherwise as permitted by the Ontario Securities Commission, Canadian Securities Administrators and/or Nasdaq. The actual number of subordinate voting shares which may be purchased pursuant to the NCIB and the timing of any such purchases will be determined by senior management. The average daily trading volume on the TSX from Nov. 1, 2024, to April 30, 2025, was 55,111 subordinate voting shares. Daily purchases under the NCIB will be limited to 13,777 subordinate voting shares, other than block purchases. All shares purchased under the NCIB will be cancelled.

As of May 7, 2025, there were 49,297,832 subordinate voting shares and 1,325,694 multiple voting shares outstanding.

Colliers may purchase its subordinate voting shares, from time to time, if it believes that the market price of its subordinate voting shares is attractive and that the purchase would be an appropriate use of corporate funds and in the best interests of Colliers.

Colliers's previous NCIB authorized the purchase of up to four million subordinate voting shares and expired on July 19, 2024. Colliers did not purchase any subordinate voting shares pursuant to this previous NCIB.

BMO Nesbitt Burns Inc. has been appointed to act as Colliers's designated broker to make purchases of subordinate voting shares pursuant to the NCIB. Colliers has also entered into an automatic share purchase plan (ASPP) with BMO allowing it to purchase common shares under the NCIB when Colliers would ordinarily not be permitted to purchase shares due to regulatory restrictions and customary self-imposed blackout periods. Before entering a blackout period, Colliers may, but is not required to, instruct BMO to make purchases under the NCIB during such a period based on parameters set by Colliers in accordance with the ASPP, TSX rules and applicable securities laws. All purchases made under the ASPP are included in computing the number of subordinate voting shares purchased under the NCIB. The ASPP has been precleared by the TSX and will be implemented and effective May 9, 2025.

About Colliers International Group Inc.

Colliers is a global diversified professional services and investment management company. Operating through three industry-leading platforms -- real estate services, engineering and investment management -- Colliers has a proven business model, an enterprising culture, and a unique partnership philosophy that drives growth and value creation. For 30 years, Colliers has consistently delivered approximately 20-per-cent compound annual returns for shareholders, fuelled by visionary leadership, significant inside ownership and substantial recurring earnings. With nearly $5-billion in annual revenues, a team of 23,000 professionals and more than $100-billion in assets under management, Colliers remains committed to accelerating the success of its clients, investors and people worldwide.

We seek Safe Harbor.