David Bryan Shaw

Citadel Advisors LLC is a SEC-registered investment advisor and hedge fund manager headquartered in Miami, Florida. The firm was founded in 1990 by Kenneth Griffin and is wholly-owned by Citadel Advisors Holdings LP, ultimately held by GFH HFEVA LLC. Citadel Advisors manages private investment funds that are offered exclusively to sophisticated investors.

PFM Health Sciences LP (PFM) is an independent, SEC-registered investment advisor and hedge fund manager headquartered in San Francisco, California. The firm was founded by Chris James in 2004 as Partner Fund Management LP. PFM serves as an investment advisor to private investment funds in which qualified investors invest directly.

JPMorgan Securities LLC (JPMS) is a securities brokerage firm headquartered in New York City. The firm was founded in 1985 and is a subsidiary of JPMorgan Broker-Dealer Holdings, Inc., ultimately held by JPMorgan Chase & Co., Inc. (NYSE: JPM). JPMS provides research on fixed income, credit, derivatives, emerging markets, foreign exchange, structured finance, technical analysis and bond indices. Their equity analysts cover equities throughout North America, EMEA, Asia/Pacific and the emerging markets. The firm's fixed income team formulates trading and portfolio recommendations for investors in global bonds and other fixed-income markets based on valuations, analytics and market dynamics.

Wachovia Securities LLC offered equity, fixed income, and structured products. It was founded in 2001 and was headquartered in St. Louis, MO.

J. Goldman & Co. LP (JGC) is a registered investment advisor and hedge fund manager headquartered in New York City. The firm was founded by Jay G. Goldman in 1986. JGC provides portfolio management services to pooled investment vehicles.