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Telix (TLX) Facing Securities Class Action Lawsuit Over Alleged Dual Regulatory Failures: SEC Subpoena & FDA CRL on CMC/Supply Chain – Hagens Berman

Key Takeaway: Telix Pharmaceuticals Ltd. is currently facing a class action lawsuit following multiple regulatory setbacks, which have significantly impacted its stock value. The lawsuit accuses the company of overstating its progress in developing therapeutic candidates TLX591 and TLX592 and misrepresenting its third-party supply chain reliability. Notably, the FDA issued a Complete Response Letter highlighting critical deficiencies, and an SEC subpoena was revealed concerning the company's drug development disclosures. Investors are being urged to come forward due to the substantial losses incurred during the affected period.
Price reaction · baseline $9.85 (2025-12-05 close) · 4 other TLX headline(s) in the window, move may be shared
day 0 close · peak
-1.8%

Market Sentiment Analysis

CONCERNS & RISKS

  • Telix faced a significant class action lawsuit due to alleged regulatory failures.
  • Stock prices dropped 21% following negative regulatory news from the FDA and SEC.
  • Management is accused of overstating developmental progress and misleading investors.
  • The FDA issued a Complete Response Letter citing deficiencies in manufacturing controls.

BiopharmaWatch Analysis

From our catalyst data and publicly available data · not financial advice
Best trade, last catalyst
+13%
120-day peak, hindsight
Typical move
7%
average across 7 past catalysts
Lead asset
131I-IPA
Phase 1 · Neoplastic Disease

Full Press Release Details

SAN FRANCISCO, Dec. 08, 2025 (GLOBE NEWSWIRE) -- National shareholder rights law firm Hagens Berman reminds investors that the deadline to move the Court for appointment as lead plaintiff in the securities class action lawsuit against Telix Pharmaceuticals Ltd. (NASDAQ: TLX) is January 9, 2026.
The lawsuit follows a series of regulatory setbacks and steep stock declines, including a 21% drop after the final regulatory news. The complaint alleges that Telix and its executives materially overstated the developmental progress of its therapeutic candidates (specifically TLX591 and TLX592) and misrepresented the reliability and regulatory compliance of its third-party supply chain and manufacturing partners.
“The complaint alleges that management’s claims of ‘great progress’ and ‘truly global manufacturing capability’ were directly at odds with the reality of regulatory scrutiny,” said Reed Kathrein, the Hagens Berman partner leading the litigation. “We are specifically investigating the documented notices of deficiency (Form 483) issued to two third-party partners which led to the FDA’s Complete Response Letter (CRL). These failures were material and allegedly concealed from investors.   The firm urges Telix investors who suffered substantial losses to contact the firm now to discuss their rights.”
Legal Analysis: Dual Regulatory Failures & Supply Chain Deception
The complaint highlights two distinct regulatory events that allegedly corrected the market’s misperception of Telix’s business, operation and prospects:
Alleged Regulatory Failure Alleged Disclosure Event & Stock Impact Key Legal Issues
SEC Investigation On July 22, 2025, Telix revealed an SEC Subpoena relating to disclosures on the development of its prostate cancer therapeutic candidates ( TLX591 / TLX592 ). Whether TLX made misleading disclosures on drug development progress.
FDA Complete Response Letter (CRL) On August 28, 2025, the FDA rejected the Zircaix (TLX250-CDx) application, citing deficiencies in Chemistry, Manufacturing, and Controls (CMC) and documented Form 483 deficiencies at third-party manufacturers. Whether the company concealed foundational weaknesses in the third-party supply chain and manufacturing processes.
Total Stock Drop Telix ADSs fell sharply following these regulatory revelations. Whether investors who purchased TLX ADSs during the Class Period (Feb. 21, 2025 – Aug. 28, 2025) are entitled to damages.
Next Steps: Contact Partner Reed Kathrein Today
Hagens Berman is one of the nation’s top plaintiff litigation firms, securing substantial recoveries for investors.
Mr. Kathrein and the firm’s investor fraud attorneys are actively advising investors who purchased TLX ADSs during the Class Period and suffered substantial losses due to the undisclosed supply chain and therapeutic progress flaws.
The Lead Plaintiff Deadline is January 9, 2026.
TO SUBMIT YOUR TELIX (TLX) LOSSES NOW, PLEASE USE THE SECURE FORM BELOW:
Submit Your Telix (TLX) Class Period Investment Losses Now
Contact: Reed Kathrein at 844-916-0895 or email TLX@hbsslaw.com
If you’d like more information and answers to frequently asked questions about the Telix case and our investigation, read more »
Whistleblowers: Persons with non-public information regarding Telix should consider their options to help in the investigation or take advantage of the SEC Whistleblower program. Under the new program, whistleblowers who provide original information may receive rewards totaling up to 30 percent of any successful recovery made by the SEC. For more information, call Reed Kathrein at 844-916-0895 or email TLX@hbsslaw.com.
Hagens Berman is a global plaintiffs’ rights complex litigation firm focusing on corporate accountability. The firm is home to a robust practice and represents investors as well as whistleblowers, workers, consumers and others in cases achieving real results for those harmed by corporate negligence and other wrongdoings. Hagens Berman’s team has secured more than $2.9 billion in this area of law. More about the firm and its successes can be found at hbsslaw.com. Follow the firm for updates and news at @ClassActionLaw.

Frequently Asked Questions

What is the deadline for the Telix Pharmaceuticals lawsuit?

The deadline to move for lead plaintiff in the Telix lawsuit is January 9, 2026.

Why is Telix Pharmaceuticals being sued?

Telix is being sued for allegedly overstating its drug development progress and supply chain reliability.

What caused Telix's stock to drop significantly?

Telix's stock fell 21% following regulatory setbacks and negative news regarding its drug applications.

Who can file claims in the Telix lawsuit?

Investors who purchased TLX ADSs between February 21 and August 28, 2025, can file claims.

How can investors contact Hagens Berman for more information?

Investors can contact Reed Kathrein at 844-916-0895 or email TLX@hbsslaw.com.

Last updated: Dec 8, 2025