Calamos Asset Management, Inc. ("CAM") is a holding company and as of December 31, 2012 owned 22.1% of Calamos Investments LLC ("Calamos Investments"). CAM, together with Calamos Investments and Calamos Investments' subsidiaries (the "Company"), operates the investment advisory and distribution services businesses reported within its consolidated financial statements. CAM operates and controls all of the business and affairs of Calamos Investments and, as a result of this control, consolidates the financial results of Calamos Investments with its own financial results. The remaining 77.9% ownership interest in Calamos Investments is held by Calamos Family Partners, Inc. ("CFP"), a Delaware corporation, and John P. Calamos, Sr. the Chairman, Chief Executive Officer and Global Co-Chief Investment Officer of CAM. CFP and John P. Calamos, Sr. (collectively "Calamos Interests") ownership interest, in accordance with applicable rules, is reflected and referred to within CAM's 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. The graphic below illustrates our organizational and ownership structure as of December 31, 2012:

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

(2) Represents combined economic interest of all public stockholders, including John P. Calamos, Sr., Nick P. Calamos and John P. Calamos, Jr.'s combined 8.4% ownership interest of Class A common stock. The calculation of ownership interest includes options and RSUs that vest within 60 days.

(3) As of May 2, 2012, Calamos International LLP's name changed to Calamos Investments LLP.