The initial public offering of 5,770,000 shares of common stock at $15.00 per share (before underwriting discounts and commissions) took place March 8, 2007. Of those shares, Sourcefire sold 5,320,000 shares and selling stockholders sold 450,000 shares. The Company raised a total of $92.8 million in gross proceeds from the IPO, or approximately $83.8 million in net proceeds after deducting underwriting discounts and commissions of $6.5 million and other offering costs of $2.5 million. In addition, Morgan Stanley & Co. Incorporated, who acted as the sole book-running manager for the IPO, has exercised in full their over-allotment option to purchase an additional 865,500 shares of Sourcefire common stock.