Levi & Korsinsky has reminded Planet Fitness investors of a pending securities class action with a Sept. 14, 2026 lead plaintiff deadline. The lawsuit covers purchases between Nov. 6, 2025 and May 6, 2026, following a 31.19 percent one-day share decline triggered by reduced guidance and a paused Black Card price increase.
Planet Fitness shares fell 31.19 percent on May 7 after guidance cuts, triggering a securities class action with a Sept. 14 lead plaintiff deadline.
"Institutional investors play a critical role in securities class actions because they can help ensure that shareholder claims are prosecuted efficiently and with accountability," Joseph E. Levi, founding partner at Levi & Korsinsky, said.
The complaint alleges Planet Fitness overstated its ability to drive membership growth through its national marketing campaign and pricing strategy. The company's peak first-quarter sign-up period was weaker than expected because marketing messaging failed to resonate with core fitness beginners and casual gym-goers. Planet Fitness also paused the planned national Black Card price increase and revised key 2026 targets.
Shares declined from $63.96 to $44.01 on May 7, a $19.95 per-share loss. The company previously projected 2026 system-wide same club sales growth of 4 percent to 5 percent, revenue growth of approximately 9 percent, adjusted EBITDA growth of approximately 10 percent, and adjusted diluted EPS growth of 9 percent to 10 percent. It revised those expectations to approximately 1 percent, 7 percent, 6 percent, and 4 percent, respectively.
The class period runs from Nov. 6, 2025 to May 6, 2026. Investors who purchased PLNT securities during that window and suffered losses may be eligible to seek compensation. The lead plaintiff deadline is Sept. 14, 2026, and appointment as lead plaintiff is not required to participate in any recovery.
Planet Fitness stock has continued to struggle since the May 7 selloff. At approximately $49.10 per share, the stock is down 55.25 percent year to date, with a one-year total shareholder return of negative 53.17 percent. Some valuation models still see upside, with Simply Wall St estimating a fair value of $66.64 per share, roughly 26 percent above the current price. The company's challenges come as it competes with premium fitness operators including Life Time Group Holdings (NYSE: LTH) and equipment maker Technogym (BIT: TGYM) for consumer fitness spending.
The lawsuit adds to Planet Fitness's legal exposure. The company is also facing separate litigation from women who allege a California man broke into tanning rooms to film naked gymgoers, according to reports.
The revised guidance implies a significant slowdown in membership growth, which was the core driver of the company's prior valuation. The class action outcome and any potential settlement costs remain uncertain, and investors will watch whether the company can stabilize membership trends in the second half of 2026. The next event to watch is the lead plaintiff deadline on Sept. 14, 2026, which will determine how the case proceeds.
This article is for informational purposes only and does not constitute investment advice.
