Bradley Jay Warden

Macquarie Investment Management Business Trust (MIMBT) is a SEC-registered investment advisor headquartered in Philadelphia, Pennsylvania. The firm was founded in 1988 and formerly known as Delaware Management Business Trust. They are a subsidiary of Delaware Investment Management Co. LLC, ultimately held by Macquarie Group Ltd. (ASX: MQG) in Australia. MIMBT advises a variety of institutional clients. The firm also provides investment services to certain affiliates and acts as a sub-advisor to unaffiliated sponsors and investment products.

Ivy Investment Management Co. (dba Ivy Investments) is a SEC-registered investment adviser and mutual fund manager headquartered in Overland Park, Kansas. The firm was founded in 1937 and is a wholly-owned, direct subsidiary of Waddell & Reed Financial, Inc. (NYSE: WDR). Ivy Investments acts as investment adviser for a variety of clients, including registered investment companies (distributed through affiliated and unaffiliated distribution channels), institutional and other private investors and provides sub-advisory services to unaffiliated US mutual funds.

Waddell & Reed Investment Management Co. (WRIMCO) is a registered investment advisor and mutual fund manager headquartered in Overland Park, Kansas. The firm is a subsidiary of Waddell & Reed, Inc., ultimately held by Waddell & Reed Financial, Inc. (NYSE: WDR). Founded in 1972, WRIMCO provides advisory services to a variety of clients, including defined benefit pension plans, non-proprietary US investment companies, non-US pooled vehicles, defined contribution plans, charitable foundations, and high net worth clients.