Lantheus Holdings Faces Class Action Over Securities Violations: New Developments

Class Action Lawsuit Against Lantheus Holdings, Inc.

On October 13, 2025, the DJS Law Group announced the initiation of a class action lawsuit against Lantheus Holdings, Inc., a publicly traded company listed on NASDAQ under the ticker symbol LNTH. This lawsuit asserts that Lantheus engaged in significant violations of sections 10(b) and 20(a) of the Securities Exchange Act of 1934, along with Rule 10b-5 set forth by the U.S. Securities and Exchange Commission (SEC). The lawsuit particularly concerns misleading claims that the company allegedly released regarding its leading product, Pylarify.

Allegations of Misleading Statements

The complaint filed against Lantheus outlines allegations that the company overstated the effectiveness and market leadership position of Pylarify, its prostate cancer imaging agent. It also notes that during the class period, from February 26, 2025, to August 5, 2025, competition negatively impacted Pylarify's market stance, yet Lantheus continued to promote the product's success. Following the claims made by several investors, it has been revealed that 2025 saw a notable decline in Pylarify's sales, raising concerns about Lantheus’s transparency with its shareholders and the public.

Investors who purchased shares during this period are being called upon to contact DJS Law Group, as they may be eligible to serve as lead plaintiffs in this case. While being appointed as a lead plaintiff is not a requirement for participating in potential recovery, taking this step could provide stronger representation in the ongoing litigation.

Key Dates and Participation

The deadline for potential lead plaintiffs to come forward is set for November 10, 2025. Investors who wish to register will have the opportunity to utilize portfolio monitoring software provided by DJS Law Group, ensuring they receive timely updates regarding the case's progression. Notably, participation in this lawsuit entails no cost or obligation to the investors.

Why DJS Law Group?

DJS Law Group specializes in legal representation for investors involved in class action lawsuits and has a proven track record in corporate governance litigation. Their primary objective is to advocate aggressively for their clients in recovering investment losses due to unlawful practices by companies. The firm’s expertise caters to high-profile hedge funds and distinguished asset managers, confirming their strength and commitment to ethical representation in securities matters.

This situation has surfaced as a pressing reminder for shareholders to remain vigilant regarding the companies in which they invest, especially concerning how corporate disclosures can significantly impact stock performance.

If you fall under the category of shareholders who experienced losses due to Lantheus' alleged misleading statements, it's advisable to reach out to DJS Law Group to explore your eligibility for participation in this case.

For more information, David J. Schwartz from DJS Law Group has made himself available for inquiries. Investors are encouraged to use the provided contact details for further assistance in navigating this evolving situation.