Deadline Approaching: Lantheus Holdings, Inc. (LNTH) Investors Who Lost Money Urged to Contact Law Offices of Howard G. Smith

By: Law Offices of Howard G. Smith via Business Wire

September 17, 2025 at 14:20 PM EDT

Law Offices of Howard G. Smith reminds investors of the upcoming November 10, 2025 deadline to file a lead plaintiff motion in the case filed on behalf of investors who purchased Lantheus Holdings, Inc. (“Lantheus” or the “Company”) (NASDAQ: LNTH) securities between February 26, 2025 and August 5, 2025, inclusive (the “Class Period”).

IF YOU ARE AN INVESTOR WHO SUFFERED A LOSS IN LANTHEUS HOLDINGS, INC. (LNTH), CONTACT THE LAW OFFICES OF HOWARD G. SMITH TO PARTICIPATE IN THE ONGOING SECURITIES FRAUD LAWSUIT.

Contact the Law Offices of Howard G. Smith to discuss your legal rights by email at howardsmith@howardsmithlaw.com, by telephone at (215) 638-4847 or visit our website at www.howardsmithlaw.com.

What Happened?

On May 7, 2025, Lantheus released its first quarter 2025 financial results, missing consensus estimates, specifically with the Company’s key Radiopharmaceutical Oncology product, Pylarify. The Company disclosed that Pylarify sales had decreased year-over-year due to an alleged “temporal competitive disruption.” Additionally, the Company reduced its full-year guidance.

On this news, Lantheus’s stock price fell $24.35, or 23.2%, to close at $80.49 per share on May 7, 2025, thereby injuring investors.

Then, on August 6, 2025, Lantheus released its second quarter 2025 financial results, once again missing estimates and significantly reduced growth expectations for Pylarify, due to ongoing completion impacting pricing dynamics. The Company further slashed its full-year guidance.

On this news, Lantheus’s stock price fell $20.76, or 28.6%, to close at $51.87 per share on August 6, 2025, thereby injuring investors further.

What Is the Lawsuit About?

The complaint filed in this class action alleges that throughout the Class Period, Defendants made materially false and/or misleading statements, as well as failed to disclose material adverse facts about the Company’s business, operations, and prospects. Specifically, Defendants failed to disclose to investors that: (1) Lantheus did not have an accurate understanding of the pricing and competitive dynamics of Pylarify’s market; and (2) as a result, Defendants’ positive statements about the Company’s business, operations, and prospects were materially misleading and/or lacked a reasonable basis at all relevant times.

If you purchased or otherwise acquired Lantheus securities during the Class Period, you may move the Court no later than November 10, 2025 to ask the Court to appoint you as lead plaintiff if you meet certain legal requirements.

Contact Us to Participate or Learn More:

If you wish to learn more about this class action, or if you have any questions concerning this announcement or your rights or interests with respect to these matters, please contact us:

Law Offices of Howard G. Smith

3070 Bristol Pike, Suite 112

Bensalem, Pennsylvania 19020

Telephone: (215) 638-4847

Email: howardsmith@howardsmithlaw.com

Visit our website at: www.howardsmithlaw.com.

To be a member of the class action you need not take any action at this time; you may retain counsel of your choice or take no action and remain an absent member of the class action.

This press release may be considered Attorney Advertising in some jurisdictions under the applicable law and ethical rules.

View source version on businesswire.com: https://www.businesswire.com/news/home/20250917537000/en/

Contacts

Law Offices of Howard G. Smith

Howard G. Smith, Esquire

215-638-4847

howardsmith@howardsmithlaw.com

www.howardsmithlaw.com

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Deadline Approaching: Lantheus Holdings, Inc. (LNTH) Investors Who Lost Money Urged to Contact Law Offices of Howard G. Smith

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