John S. Force

Chartwell Investment Partners LLC (Chartwell) is a SEC-registered investment advisor headquartered in Berwyn, Pennsylvania. The firm was founded by Timothy Riddle in 1997 and is a subsidiary of Carillon Tower Advisers, Inc. (dba Raymond James Investment Management), which is owned by Raymond James Financial, Inc. (NYSE: RJF) in Great Britain. Chartwell provides investment supervisory services on a continuous basis to a variety of individual, institutional, investment company, private fund and corporate clients. The firm is a sub-adviser to investment companies registered under the Investment Company Act of 1940.

Founded in 1992, Cottonwood Research Group LLC is an independent investment research firm located in Mission Hills, Kansas. The firm's research focuses on publicly-traded healthcare companies.

The Vanguard Group, Inc. (VGI) is an independent, SEC-registered investment advisor and mutual fund manager headquartered in Malvern, Pennsylvania. The firm was founded in 1975 by John Bogle. In 1976, they introduced the first indexed mutual fund, the First Index Investment Trust (now known as the Vanguard 500 Index Fund), to individual investors. VGI provides investment advisory services to Vanguard family of funds and Vanguard's non-US clients, which are comprised of funds established as trusts under the laws of the Province of Ontario in Canada and separate account clients of Vanguard's international subsidiaries.