John Cook IV

John Cook IV is a seasoned legal professional with extensive experience in corporate law and supply chain operations. Currently serving as Assistant General Counsel and Head of Legal for Global Products and Supply Chain at Ciena since April 2020, John Cook IV manages legal matters related to supply chain and operations, including research and development, engineering, and procurement. Previously, John Cook IV held positions as Associate General Counsel and Corporate Counsel at Zayo Group, and served as Associate Corporate Counsel at Dish Network. Early in the career, John Cook IV worked as a Legal Intern at Goldman Sachs and as an Equity Derivatives Analyst, where significant contributions included managing trading risk and developing efficiency solutions. John Cook IV holds a J.D. from the University of Colorado Boulder and a B.A. in Economics from Westminster University.