Planet Fitness Faces Securities Lawsuit Following Guidance Revision

The complaint, filed in the United States District Court for the District of New Hampshire, covers shareholders who purchased securities between November 6, 2025, and May 6, 2026. On May 7, 2026, Planet Fitness shares dropped from $63.96 to $44.01, a decline of $19.95 per share, following a significant revision of the company’s financial outlook.

Investors allege that the company failed to disclose that its “We Are All Strong on This Planet” marketing campaign was alienating its core demographic of beginners and casual gym-goers. Furthermore, the lawsuit challenges whether the company’s three-year growth algorithm and the national rollout of a $29.99 Black Card price increase were supported by realistic market conditions. Following these disclosures, Planet Fitness lowered its same-club sales growth expectations from a range of 4% to 5% down to approximately 1% and paused its pricing strategy. Shareholders have until September 14, 2026, to seek appointment as lead plaintiff in the ongoing litigation.