Aaron Leroy Shackelford

ProShare Advisors LLC (PSA) is an independent, SEC-registered investment advisor and ETF fund manager headquartered in Bethesda, Maryland. The firm was founded in 2006 by Michael Sapir and Louis Mayberg. PSA provides investment advisory and management services to the ProShares Trust, an open-end series management investment company. The firm also regularly develops customized solutions such as portfolio diversification strategies, risk management solutions, tactical portfolio alignment, exposure adjustments and liquidity management. Their clients include hedge funds, asset managers, consultants, pensions, foundations and endowments and insurance companies.

Cambridge Associates LLC is a privately-held, SEC-registered investment advisor headquartered in Boston, Massachusetts. The firm was founded in 1973 by James Bailey and Henry Lewis. Cambridge Associates provides investment management and advisory services to colleges and universities, foundations and other non-profit institutions. They also act as an investment adviser to private clients, family offices, corporations, healthcare institutions, insurance groups, pension plans and ERISA pools and public and government-related groups.

Founded in 1958, Merrill Lynch Piece Fenner & Smith, Inc. is an SEC registered broker/dealer located in New York City. The firm is a subsidiary of BAC North America Holding Co. and their ultimate parent is Bank of America Corp. (NYSE BAC).