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aTyr Pharma, Inc. (ATYR) Securities Class Action Deadline Alert: Shamis & Gentile, P.A. Alerts Investors of Important Lead Plaintiff Deadline of December 8, 2025

Key Takeaway: aTyr Pharma, Inc. is facing a securities class action lawsuit due to alleged misleading statements about its drug Efzofitimod during a clinical study. The lawsuit was filed for investors who bought stock between January 16, 2025, and September 12, 2025. Following the announcement of disappointing trial results, specifically that EFZO-FIT failed to meet its primary endpoint, aTyr Pharma's stock experienced a significant decline. The firm Shamis & Gentile is alerting impacted investors of a lead plaintiff deadline of December 8, 2025.

Market Sentiment Analysis

CONCERNS & RISKS

  • aTyr Pharma's stock price plummeted 83.2% following the disclosure of failed clinical trial results.
  • The company is facing a securities class action lawsuit for allegedly misleading investors about the drug Efzofitimod.
  • The complaint alleges false statements concerning the drug's effectiveness in allowing steroid tapering.

Full Press Release Details

MIAMI, Oct. 10, 2025 (GLOBE NEWSWIRE) -- The law firm of Shamis & Gentile, P.A. alerts investors that a securities class action lawsuit has been filed against aTyr Pharma, Inc. (NASDAQ: ATYR) on behalf of investors who purchased or otherwise acquired aTyr Pharma common stock between January 16, 2025 and September 12, 2025, inclusive. The lead plaintiff deadline for this action is December 8, 2025.
For more information go to:
aTyr Pharma Securities Class Action
Impacted investors may also contact attorney David Abel at securities@shamisgentile.com or (305) 479-2299.
WHAT IS THIS LAWSUIT ABOUT?
aTyr Pharma recently conducted a Phase 3, randomized, double-blind, placebo-controlled study to evaluate the safety and efficacy of intravenous Efzofitimod in patients with pulmonary sarcoidosis (EFZO-FIT). The complaint alleges that, during the relevant period, the defendants disseminated false and misleading statements and/or concealed material adverse facts concerning the efficacy of Efzofitimod, particularly, the drug’s capability to allow a patient to completely taper their steroid usage.
On September 15, 2025, the truth allegedly emerged when aTyr Pharma hosted an investor presentation where it announced topline results for the Phase 3 EFZO-FIT study of Efzofitimod in pulmonary sarcoidosis. Specifically, aTyr Pharma disclosed that EFZO-FIT failed to meet its primary endpoint of change from baseline in mean daily oral corticosteroid dose at week 48. Additionally, aTyr Pharma announced that the company’s next step was to engage with the FDA to determine a path forward, given the disappointing topline results.
Following this news, aTyr Pharma’s stock price fell 83.2%, from $6.03 per share on September 12, 2025 to $1.02 per share on September 15, 2025.
Shamis Gentile, P.A. alerts impacted investors that the deadline for seeking appointment as a lead plaintiff in this lawsuit is December 8, 2025. Investors who suffered losses from trading aTyr Pharma securities during the relevant period may contact attorneys at the law firm more information on how to seek a claim for recovery:
ABOUT SHAMIS & GENTILE P.A.
Shamis & Gentile, P.A. stands out as an advocate for investors who are victims of securities fraud. The firm is committed to securing recoveries for investors who have incurred damages due to false and misleading statements or other corporate misconduct by public companies. Shamis Gentile, P.A. has recovered over $1 billon for consumers nationwide. Its extensive experience, expertise, and resources enable the firm to resolve disputes in a wide range of matters, including class actions, mass torts, and mass arbitrations.
Shamis & Gentile, P.A.
14 NE 1st Ave, Suite 705
May be considered attorney advertising in certain jurisdictions. Past results do not guarantee future outcomes.

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Frequently Asked Questions

What is the aTyr Pharma class action lawsuit about?

The lawsuit alleges aTyr Pharma misled investors about the efficacy of Efzofitimod.

When does the lead plaintiff deadline occur for this lawsuit?

The deadline to seek lead plaintiff status is December 8, 2025.

What recent event affected aTyr Pharma's stock price?

aTyr Pharma's stock dropped 83.2% after the EFZO-FIT study results were announced.

How can impacted investors seek recovery?

Investors can contact Shamis & Gentile, P.A. for guidance on filing claims.

What did the Phase 3 EFZO-FIT study reveal?

The study failed to meet its primary endpoint regarding corticosteroid tapering.

Last updated: Oct 10, 2025