Alta Partners is a San Francisco-based venture capital firm focused on life sciences investing. Founded in 1996, the firm has raised more than $2 billion in committed capital through eight venture fund programs. Alta invests in biopharmaceutical and medical technology companies across the development continuum, from company formation to later-stage opportunities, and has funded more than 130 life sciences companies to date. Alison Kiley, Director, is a member of the Esperion Board of Directors.

Domain Associates, L.L.C. is a venture capital firm founded in 1985 with an exclusive focus on life sciences. With $2 billion of capital under management, Domain is headquartered in Princeton, New Jersey with a second office in San Diego, California. Nicole Vitullo, Partner, is a member of the Esperion Board of Directors.

Aisling Capital, a leading private equity firm headquartered in New York with $1 billion under management, invests in products, technologies, and businesses that advance health. In addition to investing in companies developing pharmaceutical, biopharmaceutical, and medical products, Aisling invests in businesses that provide drug development, manufacturing, and other important services to the healthcare industry. Dov Goldstein, M.D., Partner, is a member of the Esperion Board of Directors.

Arboretum Ventures is an early-stage venture capital firm specializing in the healthcare sector. Arboretum invests throughout the U.S., with a special interest in the Midwest region. Founded in 2002 and headquartered in Ann Arbor, Michigan, Arboretum currently manages $85 million in capital. Jan Garfinkle, Founder and Managing Director, is an observer to the Esperion Board of Directors.