BOTHELL, Wash.--(BUSINESS WIRE)--Seattle Genetics, Inc. (Nasdaq:SGEN) announced today that the underwriters of its previously announced public offering of common stock have exercised in full their option to purchase an additional 1,500,000 shares of common stock. Gross proceeds from the offering of an aggregate of 11,500,000 shares at a price to the public of $15.50 per share, before underwriting discounts and commissions and other offering expenses, will be approximately $178 million. The offering is expected to close on February 7, 2011, subject to customary closing conditions.
