# EDGAR Filing Document

**Accession Number:** 0001339970
**File Stem:** 9999999995-25-002665
**Filing Date:** 2025-8
**Character Count:** 1337
**Document Hash:** 0480b4671cafc260f7399ab31185ce81
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**9999999995-25-002665.hdr.sgml**: 20250819

**ACCESSION NUMBER**: 9999999995-25-002665

**CONFORMED SUBMISSION TYPE**: EFFECT

**PUBLIC DOCUMENT COUNT**: 1

**FILED AS OF DATE**: 20250818

**DATE AS OF CHANGE**: 20250819

**EFFECTIVENESS DATE**: 20250818

**FILER**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** aTYR PHARMA INC
- **CENTRAL INDEX KEY:** 0001339970
- **STANDARD INDUSTRIAL CLASSIFICATION:** BIOLOGICAL PRODUCTS (NO DIAGNOSTIC SUBSTANCES) [2836]
- **ORGANIZATION NAME:** 03 Life Sciences
- **EIN:** 203435077
- **STATE OF INCORPORATION:** DE
- **FISCAL YEAR END:** 1231

**FILING VALUES:**
- **FORM TYPE:** EFFECT
- **SEC ACT:** 1933 Act
- **SEC FILE NUMBER:** 333-289360
- **FILM NUMBER:** 251229557

**BUSINESS ADDRESS:**
- **STREET 1:** 10240 SORRENTO VALLEY ROAD
- **STREET 2:** SUITE 300
- **CITY:** SAN DIEGO
- **STATE:** CA
- **ZIP:** 92121
- **BUSINESS PHONE:** 8587318389

**MAIL ADDRESS:**
- **STREET 1:** 10240 SORRENTO VALLEY ROAD
- **STREET 2:** SUITE 300
- **CITY:** SAN DIEGO
- **STATE:** CA
- **ZIP:** 92121

### UNITED STATES
### SECURITIES AND EXCHANGE COMMISSION
**Washington, D.C. 20549**

## Notice of Effectiveness

**Date:** August 18, 2025

**Time:** 16:00:00

**Form Type:** S-3

---

**CIK:** 0001339970

**Company Name:** aTYR PHARMA INC

**File Number:** 333-289360