John Reilly is president and CEO of Six Flags Entertainment Corporation and also serves as a board director. He was appointed to these roles in December 2025. Mr. Reilly has more than three decades of experience in the amusement and recreation industry, a proven track record of leadership in high-stakes environments, and significant operational management and strategic growth expertise. He most recently served as CEO of Palace Entertainment U.S. and group chief operating officer at Parques Reunidos, where he was instrumental in driving profitable growth and enhancing the guest experience across the company’s properties in the U.S., Australia and Europe. Prior to Parques Reunidos, he served as COO and interim CEO at SeaWorld Parks and Entertainment, now United Parks & Resorts Inc., where he helped deliver meaningful EBITDA growth and total shareholder returns. Mr. Reilly earned an MBA from the University of Miami and a B.A. from William & Mary.