IPO Outlook: Planet Fitness Bargain Gym Memberships Growing Strong By: Benzinga via Benzinga August 05, 2015 at 14:45 PM EDT Planet Fitness Inc (NYSE: PLNT) expects to begin trading Thursday, August 6. Between its class A and class B shares, the company will ... Read More >> Related Stocks: Aimmune Therap Planet Fitness Renaissance International IPO ETF Sunrun Inc Zynerba Pharma CS