Mary Donaldson

William Blair & Co. LLC (William Blair) is a SEC-registered broker/dealer firm headquartered in Chicago, Illinois. The firm was founded by William McCormick Blair in 1935 and is a subsidiary of WBC Holdings LP. Until 1941, they were known as Blair, Bonner & Co. William Blair provides broking services to individual, institutional and issuing clients.

Duff & Phelps Investment Management Co. (Duff & Phelps) is a SEC-registered investment advisor headquartered in Chicago, Illinois. The firm was established in 1979, evolving from the Duff & Phelps investment research firm founded in 1932. They are a wholly-owned subsidiary of Virtus Partners, Inc., which is wholly-owned by Virtus Investment Partners, Inc. (NASDAQ: VRTS). Duff & Phelps provides investment advisory services to institutional clients, mutual funds, closed-end funds, and other pooled investment vehicles as well as to retail clients. Duff & Phelps is a signatory to the United Nations Principles for Responsible Investment (UN PRI).