Alexander D. Ryer

RhumbLine Advisers LP (RhumbLine) is an independent, SEC-registered investment advisor headquartered in Boston, Massachusetts. The firm was founded in 1990 by J. D. Nelson. RhumbLine manages a broad spectrum of passive strategies in both separate client accounts and pooled funds for institutional investors.

Northern Trust Investments, Inc. (Investment Management) (NTI-IM) is the asset management division of Northern Trust Investments, Inc., ultimately held by Northern Trust Corp. (NASDAQGS: NTRS), a multi-bank holding company established in 1889. The firm was founded in 1988 and headquartered in Chicago, Illinois. NTI-IM provides a wide range of discretionary and non-discretionary investment advisory and sub-advisory services to individual and institutional clients.

RhumbLine Advisers LP (RhumbLine) is an independent, SEC-registered investment advisor headquartered in Boston, Massachusetts. The firm was founded in 1990 by J. D. Nelson. RhumbLine manages a broad spectrum of passive strategies in both separate client accounts and pooled funds for institutional investors.

SSgA Funds Management, Inc. (SSgA FM) is a SEC-registered investment advisor and mutual fund manager headquartered in Boston, Massachusetts. The firm was founded in 1978 and is a subsidiary of State Street Global Advisors, Inc., ultimately held by State Street Corp. (NYSE: STT). SSgA FM provides investment advisory services to US investment companies and certain pooled investment vehicles.