(nyse:plnt) founder and ceo mike grondahl detailed a history of rampant abuse at the company and alleged it misrepresented its financials. Webplanet fitness loses $400 million in 5 days for refusing to stop allowing transgender males in women’s locker rooms. The huge loss also comes after they. Webassuming you manage to get around the startup fee, you're still not paying $10 a month for your membership. That's because planet fitness also charges an.