Donald G. Padilla

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.

The Vanguard Group, Inc. (VGI) is an independent registered investment advisor and mutual fund manager headquartered in Malvern, Pennsylvania. The firm was founded in 1975 by John Bogle. In 1976, they introduced the first indexed mutual fund, the First Index Investment Trust (now known as the Vanguard 500 Index Fund), to individual investors. VGI provides investment advisory services to Vanguard family of funds and Vanguard's non-US clients, which are comprised of the following: (1) funds established as trusts under the laws of the Province of Ontario in Canada and (2) separate account clients of Vanguard's international subsidiaries.