---
schema_version: "secwatch.filing_event.v1"
accession: "0001193125-23-277141"
form_type: "8-K"
ticker: null
cik: "0001785173"
company_name: "89bio, Inc."
filed_at: "2023-11-14T23:59:59+00:00"
generated_at: "2026-06-08T03:54:39.468957+00:00"
event_type: "other"
sentiment: "neutral"
materiality_score: 0.3
calibrated_materiality_score: 0.3
confidence: "high"
source: SEC EDGAR
---

# 89bio amends bylaws to tighten stockholder nomination rules and align with Delaware law

## Summary
- Enhanced procedural and disclosure requirements for stockholder director nominations and business proposals, including compliance with SEC Rule 14a-19.
- Stockholder nominating directors must represent intent to solicit proxies for non-company nominees and provide compliance evidence.
- Virtual stockholder meeting logistics clarified; requirement to open stockholder list at meetings eliminated per DGCL updates.
- Company may disregard nominations that do not meet updated requirements or fail to provide required information.
- Amendment effective November 9, 2023; board adopted Third Amended and Restated Bylaws.

## SEC filing metadata
- accession: 0001193125-23-277141
- form_type: 8-K
- cik: 0001785173
- company_name: 89bio, Inc.
- filed_at: 2023-11-14T23:59:59+00:00
- event_type: other
- sentiment: neutral
- materiality_score: 0.3
- calibrated_materiality_score: 0.3
- confidence: high
- sec_items: 5.03, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1785173/000119312523277141/0001193125-23-277141-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1785173/000119312523277141/d281066d8k.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001193125-23-277141
- JSON: https://secwatch.observer/filing/0001193125-23-277141.json
- Plain text: https://secwatch.observer/filing/0001193125-23-277141.txt

## Key facts
- Governance Changes
  89bio, Inc.: Amended and restated bylaws to enhance procedural requirements for stockholder proposals and director nominations, align with Rule 14a-19, and update provisions per DGCL amendments (effective 2023-11-09).
  - Change: bylaw amendment
  - Effective: 2023-11-09
  source text: On November 9, 2023, the Board of Directors (the “Board”) of 89bio, Inc. (the “Company”) adopted an amendment and restatement of the Company’s Second Amended and Restated Bylaws (as so amended and restated, the “Third Amended and Restated Bylaws”), effective as of such date
  evidence_url: https://www.sec.gov/Archives/edgar/data/1785173/000119312523277141/0001193125-23-277141-index.htm

This AI-assisted summary is a reading aid. Review the linked SEC EDGAR filing before relying on any specific claim.