Biopharmaceutical company announces initial public offering

Omeros Corporation today announced the launch of its initial public offering of 6.82 million shares of its common stock. Omeros is a clinical-stage biopharmaceutical company committed to discovering, developing and commercializing products focused on inflammation and disorders of the central nervous system.

The estimated price range for the initial public offering is $10.00 to $12.00 per share. Omeros has applied to have the shares of common stock listed on The NASDAQ Global Market under the ticker symbol "OMER." The underwriters have the option to purchase up to an additional 1.02 million shares to cover over-allotments, if any. All of the shares of common stock will be offered by Omeros.

Omeros intends to use the net proceeds of the offering to fund the completion of its Phase 3 clinical trials of OMS103HP, its lead product candidate being evaluated for use during arthroscopic surgery to improve postoperative joint function and reduce postoperative pain, as well as the potential launch and commercialization of OMS103HP. The Company also intends to use the net proceeds to fund the development of its other product candidates in the clinic, OMS302 for ophthalmology and OMS201 for urology, and the development of its pipeline of preclinical programs.

Deutsche Bank Securities Inc. will be acting as the sole book-running manager. Wedbush PacGrow Life Sciences will be acting as the co-lead manager, Canaccord Adams Inc. and Needham & Company, LLC will be acting as co-managers, and Chicago Investment Group, LLC and National Securities Corporation will be acting as junior co-managers. The offering will be made only by means of a prospectus.

Copies of the preliminary prospectus may be obtained by contacting: Deutsche Bank Securities Inc. by mail, Attn: Prospectus Department, 100 Plaza One, Floor 2, Jersey City, NJ 07311, by telephone at (800)-503-4611 or by email: [email protected]">[email protected].

A registration statement relating to these securities has been filed with the Securities and Exchange Commission but has not yet become effective. These securities may not be sold nor may offers to buy be accepted prior to the time that the registration statement becomes effective. This press release shall not constitute an offer to sell or the solicitation of an offer to buy, nor shall there be any sale of these securities in any state or jurisdiction in which such offer, solicitation, or sale would be unlawful prior to registration or qualification under the securities laws of any such state or jurisdiction.