---
schema_version: "secwatch.filing_event.v1"
accession: "0001493152-24-033263"
form_type: "8-K"
ticker: "MTNB"
cik: "0001582554"
company_name: "Matinas BioPharma Holdings, Inc."
filed_at: "2024-08-20T23:59:59+00:00"
generated_at: "2026-05-31T08:27:44.829576+00:00"
event_type: "other_material"
sentiment: "neutral"
materiality_score: 0.65
calibrated_materiality_score: 0.65
confidence: "high"
source: SEC EDGAR
---

# Matinas BioPharma announces 1-for-50 reverse stock split effective Aug 30, 2024

## Summary
- Board approved 1-for-50 reverse stock split and reduction of authorized shares from 500M to 250M.
- Effective at 5:00 PM EST on Aug 30, 2024; split-adjusted trading under symbol MTNB begins Sep 3.
- Fractional shares rounded up to nearest whole share; no cash paid for fractions.
- Company believes split will help maintain NYSE American listing; may pursue Nasdaq uplisting later.

## SEC filing metadata
- accession: 0001493152-24-033263
- form_type: 8-K
- ticker: MTNB
- cik: 0001582554
- company_name: Matinas BioPharma Holdings, Inc.
- filed_at: 2024-08-20T23:59:59+00:00
- event_type: other_material
- sentiment: neutral
- materiality_score: 0.65
- calibrated_materiality_score: 0.65
- confidence: high
- sec_items: 8.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1582554/000149315224033263/0001493152-24-033263-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1582554/000149315224033263/form8-k.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001493152-24-033263
- JSON: https://secwatch.observer/filing/0001493152-24-033263.json
- Plain text: https://secwatch.observer/filing/0001493152-24-033263.txt

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