---
schema_version: "secwatch.filing_event.v1"
accession: "0001104659-24-100177"
form_type: "8-K"
ticker: "ZBIO"
cik: "0001953926"
company_name: "Zenas BioPharma, Inc."
filed_at: "2024-09-16T23:59:59+00:00"
generated_at: "2026-05-31T04:46:19.331386+00:00"
event_type: "other"
sentiment: "neutral"
materiality_score: 0.4
calibrated_materiality_score: 0.4
confidence: "high"
source: SEC EDGAR
---

# Zenas BioPharma completes IPO; adopts restated charter and amended bylaws

## Summary
- Authorized 175M shares of common stock and 25M shares of undesignated preferred stock.
- Eliminated stockholder ability to act by written consent and removed prior preferred series references.
- Amended bylaws establish procedures for stockholder proposals and director nominations.
- Charter and bylaws became effective upon IPO consummation on September 16, 2024.

## SEC filing metadata
- accession: 0001104659-24-100177
- form_type: 8-K
- ticker: ZBIO
- cik: 0001953926
- company_name: Zenas BioPharma, Inc.
- filed_at: 2024-09-16T23:59:59+00:00
- event_type: other
- sentiment: neutral
- materiality_score: 0.4
- calibrated_materiality_score: 0.4
- confidence: high
- sec_items: 5.03, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1953926/000110465924100177/0001104659-24-100177-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1953926/000110465924100177/tm2332800d24_8k.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001104659-24-100177
- JSON: https://secwatch.observer/filing/0001104659-24-100177.json
- Plain text: https://secwatch.observer/filing/0001104659-24-100177.txt

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