PeptiDream Inc. (Tokyo, Japan) raised Y5.3 billion ($52.4 million) through the sale of 2.1 million shares at Y2,500 in an IPO on the Tokyo Stock Exchange's market of the high-growth and emerging stocks (Mothers). The share figure includes the sale of 405,000 shares in an overallotment. The company's founders are selling an additional 1 million shares in the IPO. The Y2,500 price, which is the upper end of PeptiDream's proposed Y1,920-Y2,500 range, values the company at Y33.1 billion ($329.7 million). Mizuho is lead underwriter. The shares are slated to start trading June 11.

PeptiDream's Peptide Discovery Platform System (PDPS) enables incorporation of modified unnatural amino acids into mRNA display peptide libraries. The company said one of the motivations for an IPO was concern over a potential takeout by one of the company's partners; PeptiDream has active target discovery deals with a number of companies, including Novartis AG (NYSE:NVS; SIX:NOVN), Ipsen Group (Euronext:IPN; Pink:IPSEY), the MedImmune LLC unit of AstraZeneca plc (LSE:AZN; NYSE:AZN) and Amgen Inc. (NASDAQ:AMGN) (see BioCentury, May 20)

http://www.biocentury.com/dailynews/financial/2013-06-03/peptidream-raises-524m-in-japanese-ipo