24 Hour Fitness Makes Mark Mastrov Interim CEO as Karl Sanft Departs
Mark Mastrov becomes interim CEO of 24 Hour Fitness after Karl Sanft's departure.
· Athletech News· August 20, 2026
Person
Jason Paris
Jason Paris is a person in Burnaze's franchise knowledge graph, mentioned since 2026. 2 stories link here, each summarized from the original publisher.
Les Mills Names Jason Paris CEO as Phillip Mills Moves to Director Role
The global fitness brand has appointed veteran transformation executive Jason Paris to succeed Phillip Mills as CEO, effective October 6.
· Athletech News· August 11, 2026