SHAREHOLDER ALERT: Levi & Korsinsky, LLP Notifies Investors It Has Filed a Complaint to Recover Losses Suffered by Purchasers of Planet Fitness, Inc. Common Stock and Sets a Lead Plaintiff Deadline of September 14, 2026

To: All persons or entities who purchased or otherwise acquired common stock of Planet Fitness, Inc. (“Planet Fitness” or the “Company”) (NYSE: PLNT) between November 6, 2025, and May 6, 2026, inclusive. You are hereby notified that the class action lawsuit Norie Matsunaga v. Planet Fitness, Inc., et al. (Case No. 1:26-cv-00576) has been commenced in the United States District Court for the District of New Hampshire. To get more information go to: https://zlk.com/cases/planet-fitness-inc-class-action-lawsuit-plnt or contact Joseph E. Levi, Esq. either via email at [email protected] or by telephone at (212) 363-7500. There is no cost or obligation to you. According to the complaint, defendants provided overwhelmingly positive statements to investors while, at the same time, disseminating materially false and misleading statements and/or concealing material adverse facts concerning the true state of Planet Fitness’ customer acquisition and marketing metrics. Notably, the Company’s updated marketing messaging was failing to resonate with, and was actively intimidating, its core target demographic of fitness beginners and casual gym-goers. As a result, Planet Fitness was experiencing a significant headwind in net member joins during its peak first-quarter sign-up period that rendered its previously issued fiscal 2026 guidance and long term financial targets unachievable. On May 7, 2026, Planet Fitness announced its financial results for the first quarter of fiscal year 2026, ...