#USA #San Diego #Class Action #Johnson Fistel #Lantheus Holdings

Johnson Fistel Initiates Class Action Against Lantheus Holdings

On October 28, 2025, Johnson Fistel, PLLP, a reputable law firm recognized for its work in shareholder rights, announced the commencement of a class action lawsuit against Lantheus Holdings, Inc. (NASDAQ: LNTH). This lawsuit was filed on behalf of investors who purchased Lantheus securities between February 26, 2025, and August 5, 2025. The attorneys at Johnson Fistel are urging any investors who incurred significant losses during this period to consider participating in the lawsuit.

The class action is motivated by allegations that Lantheus Holdings misled investors regarding the performance of its flagship product, Pylarify, which is a PET imaging agent developed for prostate cancer diagnostics. The lawsuit claims that Lantheus overstated its competitive position, the stability of its pricing, and the projected growth trajectory of Pylarify. Notably, statements made by company executives allegedly downplayed competition and the pricing pressures that the product faced in the market.

The situation escalated on May 7, 2025, when Lantheus revealed a decline in Pylarify's sales year-over-year, attributing it to a "temporal competitive disruption" and subsequently slashing its full-year guidance for 2025. Following this announcement, Lantheus's stock price saw a significant drop of over 23%, impacting many investors adversely. The concerns deepened after the second quarter results were reported on August 6, 2025, which indicated a further decline of approximately 8.3% in Pylarify sales. Adding to the turmoil, Lantheus again revised its guidance downward, leading to a staggering stock price decline of nearly 29% shortly thereafter.

The class action lawsuit filed by Johnson Fistel seeks to recover losses sustained by those who invested in Lantheus securities. For those interested in the possibility of serving as lead plaintiff or checking their eligibility for recovery, Johnson Fistel encourages them to visit their investigations page for Lantheus Holdings. Investors have until November 10, 2025, to make this determination.

Johnson Fistel, PLLP, specializes in representing both individual and institutional investors in securities class actions and shareholder derivative lawsuits across various platforms, including foreign investors trading on U.S. exchanges. In the last year, the firm was recognized as one of the Top 10 Plaintiff Law Firms, recovering around $90.7 million for its clients as lead or co-lead counsel.

In summary, the lawsuit against Lantheus Holdings highlights a significant concern regarding corporate governance and investor protection, underlining the importance for shareholders to remain vigilant about the claims made by companies regarding their financial and operational health.

For inquiries related to the lawsuit or investor relations, James Baker of Johnson Fistel can be contacted at (619) 814-4471 or via email at [email protected], while Frank J. Johnson, Esq., is also available for communication at the same contact number. Johnson Fistel continues to be an advocate for investors, as demonstrated by this latest endeavor to hold corporations accountable for their statements and actions in the public marketplace.