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Nanosphere, Inc. Announces Exercise of Over-Allotment Option and Closing of Initial Public Offering  
11/7/2007 6:33:51 AM

NORTHBROOK, Ill.--(BUSINESS WIRE)--Nanosphere, Inc. (NASDAQ: NSPH), a nanotechnology-based molecular diagnostics company, today announced that the underwriters of Nanosphere’s recent initial public offering of its common stock exercised in full their over-allotment option to purchase an additional 1,050,000 shares of Nanosphere’s common stock at $14.00 per share, less underwriting discounts and commissions. The option was granted in connection with Nanosphere’s initial public offering of 7,000,000 shares. The closing of the sale of all 8,050,000 shares by Nanosphere to the underwriters occurred earlier today.
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