Press Release

October 27, 2000

Research In Motion Prices Public Offering of Shares

Waterloo, Ontario - Research In Motion Limited (NASDAQ: RIMM, TSE: RIM) today announced it has obtained a receipt for a final short form prospectus from each of the provinces of Canada and its registration statement has become effective under the U.S. Securities Act of 1933 in connection with its previously announced public offering of 6,000,000 common shares. The common shares will be sold in the United States at US $102.00 per share and in Canada at CDN $154.90 per share. The total net proceeds to the Company are expected to be approximately CDN $888,458,000. The offering is expected to close on November 1, 2000.

The offering is being managed by Merrill Lynch & Co., Credit Suisse First Boston Corporation, Goldman, Sachs & Co., Banc of America Securities LLC, CIBC World Markets Inc., Griffiths McBurney & Partners, U.S. Bancorp Piper Jaffray Inc. and Wit SoundView Corporation. RIM has granted the underwriters an option to purchase an additional 900,000 Common Shares to cover over-allotments, if any.

Net proceeds of the offering will be used primarily for general corporate purposes, including research and development of new products and technologies, expansion of RIM's manufacturing capacity, expansion of RIM's sales and marketing organization and activities, and for working capital.

This news release shall not constitute an offer to sell or the solicitation of an offer to buy nor shall there be any sale of the common shares in any state in which such offer, solicitation or sale would be unlawful prior to registration or qualification under the securities laws of such state.

Copies of the U.S. final prospectus relating to the offering may be obtained from Merrill Lynch & Co., New York. Copies of the Canadian final prospectus relating to the offering may be obtained from Merrill Lynch Canada Inc., Toronto.

SOURCE Research In Motion Limited