WINNIPEG, March 12, 2013 /PRNewswire/ - IMRIS Inc. ("IMRIS" or the "Company") (NASDAQ: IMRS; TSX: IM) today announced that it has commenced an underwritten public offering of its common shares. The offering is being conducted in the United States pursuant to the Company's effective shelf registration statement filed with the U.S. Securities and Exchange Commission (the "SEC") and in Canada pursuant to a final short form base shelf prospectus filed with the securities regulatory authorities in each of the provinces and territories of Canada, other than Quebec. The number of common shares to be issued and the price of each common share will be determined at the time of pricing the proposed offering. Canaccord Genuity is acting as sole book-running manager for the proposed offering. The Company expects to grant the underwriter a 30-day option to purchase up to an additional 15 percent of the number of common shares sold pursuant to the public offering solely to cover over-allotments, if any. The proposed offering is subject to customary conditions, including the approval of the Toronto Stock Exchange and The NASDAQ Stock Market, and there can be no assurance as to whether or when the proposed offering may be completed, or as to the actual size or terms of the offering. The proposed offering will be made only by means of the prospectus supplement and the accompanying short form base shelf prospectus. When available, copies of the preliminary prospectus supplement and the accompanying short form base shelf prospectus may be obtained upon request by contacting Canaccord Genuity Inc., Attention: Syndicate Department, 99 High Street, 12th Floor, Boston, Massachusetts 02110, or by telephone at (617) 371-3900. Electronic copies of the preliminary prospectus supplement and the accompanying short form base shelf prospectus will also be available free of charge at www.sedar.com and www.sec.gov, respectively. This press release does not constitute an offer to sell or a solicitation of an offer to buy the securities described herein, nor shall there be any sale of these securities in any jurisdiction in which such offer, solicitation or sale would be unlawful prior to registration or qualification under the securities laws of any such jurisdiction.