Founded in 2014, Sunriver Management is a Connecticut-based hedge fund manager established by Randolph Willett Cook. The firm specializes in a long/short equity strategy, engaging in global market investments driven by thorough fundamental research.
Mr. Will Cook, the founder and portfolio manager of Sunriver Management, brings a wealth of experience to the firm. He previously served as Sector Head at Ziff Brothers Investments for over a decade. Earlier roles include Director at Internet Capital Group, Associate at General Atlantic Partners, and Analyst at Morgan Stanley. Beyond his financial career, Mr. Cook serves as a Trustee of Harlem Academy, supporting gifted children from underserved communities. He graduated Phi Beta Kappa from the University of Virginia in 1995 and earned an MBA from Columbia Business School in 2003.
As of March 2024, Sunriver Management manages assets for seven clients, with discretionary assets under management (AUM) totaling $1.03 billion. Their Q1 2024 13F filing revealed $765.19 million in managed 13F securities, with a top 10 holdings concentration of 68.39%. The firm's largest holding is in Integral Ad Science Holding Corp, with 6,969,607 shares held.
