Randolph Willett Cook

Founded in 1992, Ziff Brothers Investments LLC is a hedge fund manager located in New York City. The firm is the primary investment vehicle of the Ziff family, founders of Ziff-Davis Publishing.

Actua Corp. provides software as a service and tech-enabled business process outsourcing and internet marketing services. It also engages in the owning and operating cloud-based software. The company was founded by Walter W. Buckley, III in 1996 and is headquartered in Southeastern, PA.

General Atlantic Partners, LLC (GAP) is a private equity firm headquartered in Greenwich, Connecticut with additional offices in New York, Palo Alto, California, Reston, Virginia, London, Düsseldorf, Singapore, Hong Kong, Mumbai, India, Tokyo, and São Paulo.

Sunriver Capital Management LLC provides investment advice. The private company is based in Stamford, CT and has subsidiaries in the United States.

Sunriver Management LLC (Sunriver) is a SEC-registered investment advisor and hedge fund manager headquartered in Greenwich, Connecticut. The firm was founded by Randolph Willett (Will) Cook in 2015. They are a subsidiary of Sunriver Global LP, which is owned by Sunriver Advisors LLC. Sunriver offers investment advisory services on a discretionary basis to private funds that are intended for sophisticated investors.