Portnoy Law Firm Announces Class Action on Behalf of Lantheus Holdings, Inc. Investors

LOS ANGELES, Sept. 11, 2025 (GLOBE NEWSWIRE) -- The Portnoy Law Firm advises Lantheus Holdings, Inc., investors ("Lantheus" or the "Company") (NASDAQ: LNTH) investors of a class action representing investors that bought securities between February 26, 2025, and August 5, 2025, inclusive (the “Class Period”). Lantheus investors have until November 10th, 2025 to file a lead plaintiff motion.

Investors are encouraged to contact attorney Lesley F. Portnoy, by phone 844-767-8529 or email: lesley@portnoylaw.com, to discuss their legal rights, or join the case via https://portnoylaw.com/lantheus-holdings-inc/. The Portnoy Law Firm can provide a complimentary case evaluation and discuss investors’ options for pursuing claims to recover their losses.

The complaint alleges that Lantheus and its executives misled investors about the growth and pricing strength of Pylarify, its key prostate cancer imaging product, during the class period. The company repeatedly assured investors that Pylarify’s market leadership and premium pricing would support revenue growth, while concealing that price hikes and competitive pressures were eroding its market position. When quarterly results in May and August 2025 revealed sharp sales declines, reduced guidance, and intensifying competition, Lantheus’ stock dropped over 23% and 28% on those respective dates. The lawsuit claims that investors purchased shares at artificially inflated prices due to these misrepresentations.

The Portnoy Law Firm represents investors in pursuing claims caused by corporate wrongdoing. The Firm’s founding partner has recovered over $5.5 billion for aggrieved investors. Attorney advertising. Prior results do not guarantee similar outcomes.

Lesley F. Portnoy, Esq.
Admitted CA, NY and TX Bar
lesley@portnoylaw.com
310-692-8883
www.portnoylaw.com

Attorney Advertising

Legal Disclaimer:

EIN Presswire provides this news content "as is" without warranty of any kind. We do not accept any responsibility or liability for the accuracy, content, images, videos, licenses, completeness, legality, or reliability of the information contained in this article. If you have any complaints or copyright issues related to this article, kindly contact the author above.