Calamos Asset Management, Inc. (CAM) is a holding company and as of June 30, 2011 owned 21.9% of Calamos Investments LLC (Investments), an intermediate holding company. CAM, together with Investments and Investments’ subsidiaries (the Company), operates the investment advisory and distribution services businesses reported within these consolidated financial statements. CAM operates and controls all of the business and affairs of Investments and, as a result of this control, consolidates the financial results of Investments with its own financial results. The remaining 78.1% ownership interest in Investments is held by Calamos Family Partners, Inc. (CFP) and John P. Calamos, Sr. (collectively Calamos Interests), which interest in accordance with applicable rules, is reflected and referred to within these consolidated financial statements as “non-controlling interests in Calamos Investments LLC”. As shown in the diagram below, CFP also owns all of CAM’s outstanding Class B common stock, which represents 97.5% of the combined voting power of all classes of CAM’s voting stock. On August 17, 2011, the name of Calamos Holdings LLC was changed to Calamos Investments LLC to better reflect our business and further support and enhance our brand. The graphic below illustrates our organizational and ownership structure as of August 17, 2011:

(1) Represents combined economic interest of Calamos Family Partners, Inc. and John P. Calamos, Sr. who is also a member of Calamos Holdings LLC.