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aTyr Pharma, Inc. Class Action: Levi & Korsinsky Reminds aTyr Investors of the Pending Class Action Lawsuit with a Lead Plaintiff Deadline of December 8, 2025 – ATYR

Key Takeaway: Levi & Korsinsky, LLP has notified investors of a class action lawsuit against aTyr Pharma, Inc. (NASDAQ: ATYR) due to alleged securities fraud occurring between November 7, 2024, and September 12, 2025. The lawsuit aims to recover losses incurred by investors who were misled by positive statements regarding the efficacy of Efzofitimod, which reportedly did not meet its primary endpoint during clinical trials. Following the announcement of disappointing results, aTyr's stock plummeted by 83.2%. Investors have until December 8, 2025, to request lead plaintiff status in the lawsuit, although sharing in any compensation does not require this position.

Market Sentiment Analysis

CONCERNS & RISKS

  • aTyr Pharma's stock price suffered a drastic decline of 83.2% following study results.
  • The company is facing a class action lawsuit over alleged securities fraud.
  • The Efzofitimod study did not meet its primary endpoint, raising concerns about its efficacy.
  • Investors were given overwhelmingly positive statements that were later contradicted by disappointing results.

Full Press Release Details

NEW YORK, Nov. 14, 2025 (GLOBE NEWSWIRE) -- Levi & Korsinsky, LLP notifies investors in aTyr Pharma, Inc. ("aTyr" or the "Company") (NASDAQ: ATYR) of a class action securities lawsuit.
CLASS DEFINITION: The lawsuit seeks to recover losses on behalf of aTyr investors who were adversely affected by alleged securities fraud between November 7, 2024 and September 12, 2025. Follow the link below to get more information and be contacted by a member of our team:
ATYR investors may also contact Joseph E. Levi, Esq. via email at jlevi@levikorsinsky.com or by telephone at (212) 363-7500.
CASE DETAILS: According to the complaint, defendants provided overwhelmingly positive statements to investors while, at the same time, disseminating false and misleading statements and/or concealing material adverse facts concerning the efficacy of Efzofitimod, particularly, the drug’s capability to allow a patient to completely taper their steroid usage. The truth emerged on September 15, 2025 (pre-market) when aTyr hosted an investor call announcing that the EFZO-FIT study did not meet its primary endpoint. In pertinent part, defendants announced that the study did not meet the primary endpoint in change from baseline in mean daily OSC dose at week 48. Additionally, aTyr 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, the price of aTyr’s common stock declined from a closing market price of $6.03 per share on September 12, 2025 to $1.02 per share on September 15, 2025, a decline of 83.2% in the span of just a single day.
WHAT'S NEXT? If you suffered a loss in aTyr during the relevant time frame, you have until December 8, 2025 to request that the Court appoint you as lead plaintiff. Your ability to share in any recovery doesn't require that you serve as a lead plaintiff.
NO COST TO YOU: If you are a class member, you may be entitled to compensation without payment of any out-of-pocket costs or fees. There is no cost or obligation to participate.
WHY LEVI & KORSINSKY: Over the past 20 years, the team at Levi & Korsinsky has secured hundreds of millions of dollars for aggrieved shareholders and built a track record of winning high-stakes cases. Our firm has extensive expertise representing investors in complex securities litigation and a team of over 70 employees to serve our clients. For seven years in a row, Levi & Korsinsky has ranked in ISS Securities Class Action Services’ Top 50 Report as one of the top securities litigation firms in the United States.
Levi & Korsinsky, LLP
Joseph E. Levi, Esq.
33 Whitehall Street, 27th Floor

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Frequently Asked Questions

What is the aTyr Pharma class action lawsuit about?

The class action lawsuit targets alleged securities fraud affecting aTyr investors from November 7, 2024, to September 12, 2025.

When did the alleged fraud at aTyr Pharma occur?

The alleged fraud occurred between November 7, 2024, and September 12, 2025.

What caused aTyr's stock price to drop significantly?

The stock plummeted after the EFZO-FIT study failed to meet its primary endpoint on September 15, 2025.

How can aTyr investors participate in the lawsuit?

aTyr investors can request lead plaintiff status by December 8, 2025, without any costs.

Are there any costs to join the aTyr lawsuit?

No, class members may be eligible for compensation without any out-of-pocket expenses.

Last updated: Nov 14, 2025