---
schema_version: "secwatch.filing_event.v1"
accession: "0001193125-23-233884"
form_type: "8-K"
ticker: "VCNX"
cik: "0001205922"
company_name: "VACCINEX, INC."
filed_at: "2023-09-13T23:59:59+00:00"
generated_at: "2026-06-10T18:53:07.684216+00:00"
event_type: "other_material"
sentiment: "neutral"
materiality_score: 0.6
calibrated_materiality_score: 0.6
confidence: "high"
source: SEC EDGAR
---

# Vaccinex shareholders approve 1:15 reverse stock split; board sets ratio, effective Sept 2023

## Summary
- Stockholders approved reverse stock split amendment with 43,464,926 votes for, 2,041,760 against, 135,207 abstained.
- Board set reverse split ratio at 1:15; effective date expected in September 2023, subject to final determination.
- Prior to effective time, company will disclose final timing and additional details.

## SEC filing metadata
- accession: 0001193125-23-233884
- form_type: 8-K
- ticker: VCNX
- cik: 0001205922
- company_name: VACCINEX, INC.
- filed_at: 2023-09-13T23:59:59+00:00
- event_type: other_material
- sentiment: neutral
- materiality_score: 0.6
- calibrated_materiality_score: 0.6
- confidence: high
- sec_items: 5.07
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1205922/000119312523233884/0001193125-23-233884-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1205922/000119312523233884/d553987d8k.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001193125-23-233884
- JSON: https://secwatch.observer/filing/0001193125-23-233884.json
- Plain text: https://secwatch.observer/filing/0001193125-23-233884.txt

## Key facts
- Shareholder Votes
  VACCINEX, INC. shareholders approved Approve amendment to certificate of incorporation to effect a reverse stock split at the 2023-09-08 meeting.
  - Proposal: reverse split
  - Outcome: passed
  - Meeting: 2023-09-08
  source text: Proposal 1. The Company’s stockholders approved and adopted an amendment to the Company’s Amended and Restated Certificate of Incorporation to effect a reverse stock split of its issued common stock with one of several specified ratios between one-for-eight and one-for-fifteen shares (the “Reverse Stock Split”), at the discretion of the Company’s Board of Directors (the “Board”). Votes For Votes Against Votes Abstained 43,464,926 2,041,760 135,207
  evidence_url: https://www.sec.gov/Archives/edgar/data/1205922/000119312523233884/0001193125-23-233884-index.htm

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