¿Lion Bioscience AG, of Heidelberg, Germany, said the underwriters of its recent initial public offering on Nasdaq and the German Neuer Markt - Morgan Stanley Dean Witter & Co., of New York, and Deutsche Bank AG, of Frankfurt - exercised their overallotment option to purchase an additional 685,625 shares. This boosts total proceeds from the offering of 5,261,000 shares to EUR231.4 million (US$209 million).