Ken Griffin's position in Planet Fitness is currently worth $118 Million. That's 0.12% of their equity portfolio (187th largest holding). The investor owns 2.12% of the outstanding Planet Fitness stock. The first Planet Fitness trade was made in Q3 2015. Since then Ken Griffin bought shares 48 more times and sold shares on 42 occasions. The investor's estimated purchase price is $118 Million, resulting in a loss of 0.3%.