Cell Genesys Inc. said Tuesday that Invemed Associates Inc.has exercised its option to purchase an additional 500,000shares of common stock in the company's initial public offering,bringing the total number of shares sold to 4 million.

The Foster City, Calif., company (NASDAQ:CEGE) announcedMonday that it completed its IPO at $11 per share. Robertson,Stephens & Co., Invemed, and Oppenheimer & Co. Inc. were theunderwriters.

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