William McLean, CFA
President
William McLean has 42 years of industry experience and joined Spider in the beginning of 2021, serving as President and Chief Investment Officer until July 2025. In his role as President, and working closely with the Spider Board of Managers, he directs firm strategy, and provides oversight to the operations, compliance, and investor relations teams.
Will previously served as Vice President and Chief Investment Officer for Northwestern University's $12 billion endowment from 2002 to 2020, working on all aspects of asset allocation, manager selection, and team development. Prior to Northwestern, he was the Senior Managing Director for Asset & Investment Management at the Chicago-based John D. and Catherine T. MacArthur Foundation; and an Investment Officer for The Duke Endowment in Charlotte, North Carolina.
Will holds a Master of Business Administration from the University of North Carolina and a Bachelor of Arts in economics from Davidson College. He is currently a board member for The Sherman Fairchild Foundation, and the Robert R. McCormick Foundation. He has served on the investment advisory committees of Father Flanagan's Trust Fund, the NCAA, Davidson College, TIFF Advisory Services, Inc., Mather Lifeways, and The Mayo Clinic.