Overview

• A securities class action has been filed against Lantheus Holdings covering purchases between February 26 and August 5, 2025.
• Investor-rights firms Rosen Law Firm, Kessler Topaz Meltzer & Check, and Bernstein Liebhard have issued alerts and highlighted a November 10, 2025 lead-plaintiff deadline.
• The complaint alleges investors were misled about Pylarify’s competitive position and pricing, citing an early‑2025 price increase after prior price erosion.
• Bernstein Liebhard reports the case was filed in the U.S. District Court for the Southern District of New York, and investors need not serve as lead plaintiff to remain eligible for any potential recovery.
• Notices stress that no class has been certified and the claims remain unproven, with Kessler Topaz stating it did not file the complaint.