CAMBRIDGE, Mass., Sept. 23, 2009 (GLOBE NEWSWIRE) -- Momenta Pharmaceuticals, Inc. (Nasdaq:MNTA), a biotechnology company specializing in the characterization and engineering of complex drugs, today announced the pricing of an underwritten offering of 4,000,000 shares of its common stock at a price of $10.75 per share. After underwriting discounts and commissions and estimated offering expenses, Momenta expects to receive net proceeds of approximately $40.6 million. All of the shares are being sold by Momenta. In addition, Momenta has granted the underwriter a 30-day option to purchase up to an additional 600,000 shares of the Company’s common stock to cover overallotments. The offering is expected to close on September 28, 2009, subject to customary closing conditions.