Planet Fitness Faces Securities Fraud Lawsuit; Investors May Seek Lead Plaintiff Role

New York, NY – July 25, 2026 – Rosen Law Firm announced today that it has commenced a class action lawsuit on behalf of purchasers of Planet Fitness, Inc. (NYSE: PLNT) common stock. The lawsuit covers the period from November 6, 2025, through May 6, 2026, inclusive. The firm is seeking investors to serve as lead plaintiff, requiring a motion to the Court by September 14, 2026.

The lawsuit alleges that Planet Fitness executives made false and misleading statements regarding the company's customer acquisition and marketing metrics. According to the complaint, the company's updated marketing messaging failed to resonate with and actively intimidated its core demographic of fitness beginners and casual gym-goers. This allegedly led to significant headwinds in net member acquisitions during a critical first-quarter sign-up period, rendering previously issued fiscal 2026 guidance and long-term financial targets unachievable.

Rosen Law Firm, which represents investors globally and focuses on securities class actions, stated that investors who purchased Planet Fitness stock during the Class Period may be entitled to compensation without out-of-pocket fees through a contingency fee arrangement. The firm encourages investors to select qualified counsel with a proven track record in leadership roles.

Investors who wish to join the Planet Fitness class action can find more information on the Rosen Law Firm website. The firm noted that no class has yet been certified, and investors are not represented by counsel unless they retain their own. However, an investor's ability to share in any potential future recovery is not dependent upon serving as lead plaintiff.