Mark Phelan has served as Accel's Chief Operating Officer since February 2026 and as President, U.S. Gaming since October 2023, having joined Accel as Chief Revenue Officer in 2017; he also served as interim Chief Financial Officer in 2025. The Company has announced that Mr. Phelan will succeed Andrew Rubenstein as Chief Executive Officer and President effective August 7, 2026. Before joining Accel he was a Director of Research and Portfolio Manager at SFG Asset Advisors, Chief Executive Officer of M22 Capital LLC (2011-2013), a Managing Director of Piper Jaffray & Co. (2004-2011) and Head of Asian Derivatives Trading at DRW Trading Group. He holds a B.A. and an M.A. from the University of Chicago and an MBA from the University of Chicago Booth School of Business.