Artisan Partners Limited Partnership ("APLP"), a U.S. registered investment adviser, is a limited partnership organized under the laws of the State of Delaware. Control of APLP is vested in its general partner, Artisan Investments GP LLC ("Artisan LLC"), a limited liability company organized under the laws of the State of Delaware. Artisan Partners Holdings LP ("Artisan Holdings") is the sole member of Artisan LLC, and is the sole limited partner of APLP. Control of Artisan Holdings is vested in its general partner, Artisan Partners Asset Management Inc. ("APAM"), organized under the laws of the State of Delaware. APAM has in issue three classes of common stock as well as preferred stock. Prior to 12 March 2014, control of APAM was vested in Artisan Investment Corporation ("AIC"), pursuant to a stockholders agreement dated 12 March 2013 entered into between various common stockholders (the "Stockholders Agreement"). Control of AIC is vested in ZFIC, Inc. ("ZFIC"), a corporation organized under the laws of the State of Wisconsin. Andrew A. Ziegler and Carlene M. Ziegler each own 50% of the voting stock of ZFIC. On 12 March 2014, AIC's rights pursuant to the Stockholders Agreement were terminated. No single undertaking is now in control of APAM. |