The UFC was purchased by WME-IMG for $4 billion in July, and a slew of the talent agency's biggest clients have reportedly invested in the promotion on the heels of the acquisition.
According to the Wall Street Journal's Erich Schwartzel, Serena and Venus Williams, actor Ben Affleck and Maroon 5 frontman Adam Levine are among those who have invested in UFC since WME-IMG acquired the mixed martial arts company.
Fox Sports' Damon Martin also listed New England Patriots quarterback Tom Brady and late-night host Conan O'Brien among those who now own equity in UFC.