Timothy J. Leiweke is an American sports executive who is the chief executive officer of the Oak View Group. Leiweke was the former president and CEO of Maple Leaf Sports & Entertainment (MLSE) and former President and CEO of Anschutz Entertainment Group (AEG). Leiweke held roughly a 4% stake in AEG as of 2012, and is well known for his relationship with notoriously reclusive AEG founder and Denver-based billionaire Philip Anschutz, whom he has known since the early 1990s. Since November 2015, Leiweke has served as the CEO of the Oak View Group, "a global advisory, development and investment company for the sports and live entertainment industries".