Infoblox Inc. (NYSE: BLOX) today announced that Morgan Stanley & Co. LLC and Goldman, Sachs & Co., the lead book-running managers of the company’s initial public offering in April 2012, are releasing a lock-up restriction with respect to 5,750,000 shares of the company’s common stock held by certain officers, directors and stockholders of Infoblox. The release will take effect concurrently with Infoblox’s recently announced secondary offering. As previously announced, on September 19, 2012, Infoblox filed a registration statement with the Securities and Exchange Commission for a proposed secondary offering of shares of its common stock, which it amended on October 1, 2012. All of the shares to be sold in the offering will be sold by existing stockholders of the company. Infoblox will not receive any proceeds from the sale of the shares. The principal purposes of the offering are to facilitate an orderly distribution of the company’s outstanding shares and to increase the company’s public float. Morgan Stanley & Co. LLC and Goldman, Sachs & Co. will act as lead joint book-running managers for the offering, and UBS Securities LLC will act as a joint book-running manager for the offering. Pacific Crest Securities LLC, JMP Securities LLC and Stephens Inc. will serve as co-managers for the offering. A registration statement relating to these securities has been filed with the Securities and Exchange Commission but has not yet become effective. These securities may not be sold, nor may offers to buy be accepted, prior to the time that the registration statement becomes effective. The registration statement on Form S-1 may be accessed through the Securities and Exchange Commission’s website at edgar.sec.gov. This press release shall not constitute an offer to sell or the solicitation of an offer to buy, nor shall there be any sale of these securities in any state or jurisdiction in which such an offer, solicitation or sale would be unlawful prior to registration or qualification under the securities laws of any such state or jurisdiction.