aTyr Pharma, Inc. ( NASDAQ: ATYR)

This lawsuit is for anyone who acquired securities in of aTyr Pharma, Inc. (NASDAQ: ATYR) from November 7, 2024 through September 12, 2025.

The lawsuit alleges that the Company and certain of its executives violated federal law. Specifically, the lawsuit alleges that, for the time period mentioned above, the Company misled investors regarding its financial condition. More specifically, the lawsuit alleges that the Company knew, but failed to timely disclose, that its drug, Efzofitimod, was not effective in reducing steroid use for treating pulmonary sarcoidosis.

On September 15, 2025, aTyr announced that the Phase 3 study of its intravenous Efzofitimod pulmonary sarcoidosis treatment, EFZO-FIT, did not meet its primary endpoint in change from baseline in mean daily OSC dose at week 48. On this news, the price of the Company’s stock dropped precipitously on unusually heavy trading volume.

The Law Offices of Howard G. Smith seeks to recover damages on behalf of class members. If you acquired securities in aTyr Pharma, Inc. (NASDAQ: ATYR) from November 7, 2024 through September 12, 2025 you may join the lawsuit by submitting your information online, or you may call the Law Offices of Howard G. Smith and speak to Mr. Smith directly to learn how he can protect your rights.