Class Action Lawsuit Filed Against Lantheus Holdings Over Securities Fraud Allegations

Securities Fraud Class Action Lawsuit Against Lantheus Holdings

On October 15, 2025, Kessler Topaz Meltzer & Check, LLP announced a significant securities class action lawsuit against Lantheus Holdings, Inc. (NASDAQ: LNTH), a company notable for its market presence in the biotechnology sector, particularly concerning its flagship product, PYLARIFY. The law firm is reaching out to investors who purchased or acquired Lantheus securities between February 26, 2025, and August 5, 2025, inclusive, indicating potential substantial concerns regarding the company's disclosures during that period.

Allegations of Misconduct

The allegations center around Lantheus allegedly providing investors with misleading information regarding its competitive standing in the market. This includes accusations that the company misrepresented its capacity to evaluate the pricing and competitive landscape for PYLARIFY effectively. Furthermore, it is claimed that a price increase Lantheus implemented in early 2025, despite a decline in prices the previous year, opened the door for competitors to introduce more favorable pricing options, which could jeopardize PYLARIFY's pricing strategy and future revenue streams.

The concern is that Lantheus's misleading public statements have led investors to believe the company was in a stronger position than it actually was, potentially inflating the value of its securities based on this misinformation. These claims have resulted in considerable scrutiny from both investors and regulatory bodies, raising questions about transparency and corporate governance at Lantheus.

The Lead Plaintiff Process

Investors affected by the alleged securities fraud have until November 10, 2025, to apply to be a lead plaintiff in this case. Being a lead plaintiff means representing the interests of a larger group of investors who may have also been adversely impacted by Lantheus's actions. Lead plaintiffs are typically those with the most significant financial stake in the outcomes of the litigation and are pivotal in directing the course of the lawsuit. Their role involves selecting legal representation for the case and collaborating with attorneys to navigate the legal complexities involved.

Potential lead plaintiffs can choose to either actively participate in litigation or remain as absent class members without jeopardizing their ability to recover potential financial damages if the case is successful.

For those investors who suffered losses due to the misleading actions alleged against Lantheus, Kessler Topaz Meltzer & Check, LLP encourages affected parties to reach out directly for assistance and more detailed information about their legal rights and options.

About Kessler Topaz Meltzer & Check, LLP

Kessler Topaz Meltzer & Check, LLP is a well-regarded law firm specializing in prosecuting class actions on behalf of investors across state and federal courts throughout the U.S. and globally. With an established reputation for excellence in obtaining recoveries for victims of corporate deception and malpractice, the firm remains committed to safeguarding the rights of investors and consumers alike. Their extensive experience and track record aim to ensure accountability within the corporate structure, particularly when investor interests are compromised.

Investors who believe they qualify for this lawsuit are urged to visit the firm’s official page for additional information and to get involved in the case against Lantheus.

For inquiries, investors can contact attorney Jonathan Naji directly at (484) 270-1453 or via email at [email protected]. Additionally, the firm has provided resources online for potential claimants seeking guidance through this class action process.