# EDGAR Filing Document

**Accession Number:** 0001785173
**File Stem:** 9999999995-25-003316
**Filing Date:** 2025-11
**Character Count:** 1343
**Document Hash:** 24521abc55c8b002f63f3fb756a46dc7
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**9999999995-25-003316.hdr.sgml**: 20251120

**ACCESSION NUMBER**: 9999999995-25-003316

**CONFORMED SUBMISSION TYPE**: EFFECT

**PUBLIC DOCUMENT COUNT**: 1

**FILED AS OF DATE**: 20251119

**DATE AS OF CHANGE**: 20251120

**EFFECTIVENESS DATE**: 20251119

**FILER**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** 89bio, Inc.
- **CENTRAL INDEX KEY:** 0001785173
- **STANDARD INDUSTRIAL CLASSIFICATION:** PHARMACEUTICAL PREPARATIONS [2834]
- **ORGANIZATION NAME:** 03 Life Sciences
- **EIN:** 831114349
- **STATE OF INCORPORATION:** DE
- **FISCAL YEAR END:** 1231

**FILING VALUES:**
- **FORM TYPE:** EFFECT
- **SEC ACT:** 1933 Act
- **SEC FILE NUMBER:** 333-269471
- **FILM NUMBER:** 251500886

**BUSINESS ADDRESS:**
- **STREET 1:** 655 MONTGOMERY STREET
- **STREET 2:** SUITE 1500
- **CITY:** SAN FRANCISCO
- **STATE:** CA
- **ZIP:** 94111
- **BUSINESS PHONE:** (415) 432-9270

**MAIL ADDRESS:**
- **STREET 1:** 655 MONTGOMERY STREET
- **STREET 2:** SUITE 1500
- **CITY:** SAN FRANCISCO
- **STATE:** CA
- **ZIP:** 94111

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

## Notice of Effectiveness

**Date:** November 19, 2025

**Accession Number:** 0001193125-25-258723

**Form Type:** POS AM

---

**CIK:** 0001785173

**Company Name:** 89bio, Inc.

**File Number:** 333-269471