Edward John Dilatush

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.

A subsidiary of Lehman Brothers Holdings, Inc., Lehman Brothers, Inc. is a broker/dealer headquartered in New York City. They provide global equity and fixed research. The equity research department covers more than 100 sectors. They use a fundamental, quantitative, strategic and tactical research approach. In addition to these Lehman has also developed special products, such as 10 uncommon values and 10 uncommon eurovalues.