---
schema_version: "secwatch.filing_event.v1"
accession: "0000950170-25-048619"
form_type: "8-K"
ticker: "HCWB"
cik: "0001828673"
company_name: "HCW Biologics Inc."
filed_at: "2025-04-01T23:59:59+00:00"
generated_at: "2026-05-24T01:05:33.716863+00:00"
event_type: "other_material"
sentiment: "negative"
materiality_score: 0.6
calibrated_materiality_score: 0.6
confidence: "high"
source: SEC EDGAR
---

# HCW Biologics approves 1-for-40 reverse stock split to regain Nasdaq compliance

## Summary
- Reverse split effective April 11, 2025; outstanding shares reduced from ~44.9M to ~1.12M.
- Purpose: raise bid price above $1.00 to regain compliance with Nasdaq Listing Rule 5810(c)(3)(A).
- Authorized shares remain 250M; no change to par value ($0.0001).
- Fractional shares rounded up; CUSIP changes to 40423R204.
- Stockholders approved at special meeting March 31, 2025; board acted same day.

## SEC filing metadata
- accession: 0000950170-25-048619
- form_type: 8-K
- ticker: HCWB
- cik: 0001828673
- company_name: HCW Biologics Inc.
- filed_at: 2025-04-01T23:59:59+00:00
- event_type: other_material
- sentiment: negative
- materiality_score: 0.6
- calibrated_materiality_score: 0.6
- confidence: high
- sec_items: 3.03, 5.03, 7.01, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1828673/000095017025048619/0000950170-25-048619-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1828673/000095017025048619/hcwb-20250401.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0000950170-25-048619
- JSON: https://secwatch.observer/filing/0000950170-25-048619.json
- Plain text: https://secwatch.observer/filing/0000950170-25-048619.txt

## Key facts
- Governance Changes
  HCW Biologics Inc.: Filed Certificate of Amendment of Certificate of Incorporation to effect a 1-for-40 reverse stock split, with an effective date of April 11, 2025 (effective 2025-04-11).
  - Change: charter amendment
  - Effective: 2025-04-11
  source text: The Company effected the Reverse Stock Split pursuant to the Company’s filing of an Certificate of Amendment of Certification of Incorporation with the Secretary of State of the State of Delaware on March 31, 2025
  evidence_url: https://www.sec.gov/Archives/edgar/data/1828673/000095017025048619/0000950170-25-048619-index.htm

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