John E. Knutsen

Madison Dearborn Partners LLC (Madison Dearborn Partners) is a private equity firm founded in 1992 by John A. Canning Jr., Paul J. Finnegan, Samuel M. Mencoff, Robin P. Selati, James N. Perry Jr. and Timothy P. Sullivan. The firm is headquartered in Chicago, Illinois.

Credit Suisse Securities (USA) LLC (Credit Suisse Securities USA) is the broker/dealer division of Credit Suisse Securities (USA) LLC, an investment banking company headquartered in New York City. The firm was founded in 1998 and is a wholly owned subsidiary of Credit Suisse (USA), Inc., ultimately owned by Credit Suisse Group AG (SWX: CSGN) in Switzerland. Credit Suisse Securities USA offers a suite of equities, solutions and credit products and services which includes global securities sales, trading and execution, prime brokerage and comprehensive investment research. Their clients include financial institutions, corporations, governments, institutional investors, such as pension funds and hedge funds, and private individuals around the world.