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.
Credit Suisse Securities (USA) acted as the sole book-runner for the offering. Piper Jaffray & Co, Leerink Swann, and Allen & Company acted as co-managers.