PLNT INVESTOR REMINDER: Planet Fitness, Inc. Investors Have Until September 14, 2026 To Seek Lead Plaintiff Role

NEW YORK--(BUSINESS WIRE)--If you have suffered a loss on your Planet Fitness, Inc. (“Planet Fitness” or the “Company”) (NYSE: PLNT) investment, contact Lauren Molinaro of Kirby McInerney LLP by email at [e-mail], or fill out the contact form below to discuss your rights or interests in the securities fraud class action lawsuit at no cost.

Investors have until September 14, 2026 to ask the Court to appoint them as lead plaintiff. Courts do not consider applications filed after this deadline. The lead plaintiff oversees the litigation on behalf of the class and may influence key decisions, including litigation strategy and settlement. Courts regularly appoint individual investors as lead plaintiffs, not only institutions. Learn more about the lead plaintiff process and eligibility requirements here.

[CONTACT THE FIRM IF YOU SUFFERED A LOSS]

What Is The Lawsuit About?

The lawsuit has been filed on behalf of investors who purchased securities during the period of November 6, 2025 and May 6, 2026, inclusive (“the Class Period”). The lawsuit alleges that Planet Fitness provided positive statements to investors that its “We Are All Strong on This Planet” marketing campaign was resonating and had “legs to extend into 2026,” expressed confidence in a planned national price increase for its Black Card premium membership to $29.99, and reaffirmed its fiscal year 2026 guidance and a new three-year growth plan while concealing material adverse facts concerning the true state of Planet Fitness’ customer acquisition. Specifically, the Company’s marketing had pivoted toward fitness-minded consumers and was alienating 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 financial results for the first quarter of 2026, revealing that its critical peak sign-up period was off to a slower-than-expected start internally. The Company cut full-year 2026 growth guidance, cutting same-store growth from 4-5% to 1%, and withdrew the long-term three-year growth algorithm it had introduced six months prior, attributing these results to marketing that failed to resonate with its core customer base, alongside external competition, macroeconomic, and weather-related impacts. The Company also announced it was pausing the planned national rollout of the Black Card price increase to prioritize revitalizing new membership growth. On this news, the price of Planet Fitness shares declined by $19.95 per share, or over 31%, from $63.96 per share on May 6, 2025 to close at $44.01 on May 7, 2026.

[CLICK HERE TO LEARN MORE ABOUT THE CLASS ACTION]

What Should I Do?

If you purchased or otherwise acquired Planet Fitness securities, have information, or would like to learn more about this investigation, please contact Lauren Molinaro of Kirby McInerney LLP by email at [e-mail], or fill out the contact form below, to discuss your rights or interests with respect to these matters at no cost.

[WHAT IS A SECURITIES CLASS ACTION?]

Kirby McInerney LLP is a New York-based plaintiffs’ law firm concentrating in securities, antitrust, whistleblower, and consumer litigation. The firm’s efforts on behalf of shareholders in securities litigation have resulted in recoveries totaling billions of dollars. Additional information about the firm can be found at Kirby McInerney LLP’s website.

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