---
schema_version: "secwatch.filing_event.v1"
accession: "0001104659-24-099829"
form_type: "8-K"
ticker: "MBIO"
cik: "0001680048"
company_name: "MUSTANG BIO, INC."
filed_at: "2024-09-13T23:59:59+00:00"
generated_at: "2026-05-31T04:56:53.286059+00:00"
event_type: "regulatory"
sentiment: "negative"
materiality_score: 0.85
calibrated_materiality_score: 0.85
confidence: "high"
source: SEC EDGAR
---

# Mustang Bio receives Nasdaq delisting notice for failure to meet equity requirement

## Summary
- Nasdaq Staff determined to delist MBIO due to non-compliance with $2.5M stockholders' equity requirement by Sept 9, 2024 extension deadline.
- Company intends to request a hearing before Nasdaq Hearings Panel, which will stay delisting pending hearing and any granted extension.
- Trading on Nasdaq Capital Market under symbol MBIO continues pending the hearing process.
- No assurance that Panel will grant continued listing or that compliance can be shown within any extension period.

## SEC filing metadata
- accession: 0001104659-24-099829
- form_type: 8-K
- ticker: MBIO
- cik: 0001680048
- company_name: MUSTANG BIO, INC.
- filed_at: 2024-09-13T23:59:59+00:00
- event_type: regulatory
- sentiment: negative
- materiality_score: 0.85
- calibrated_materiality_score: 0.85
- confidence: high
- sec_items: 3.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1680048/000110465924099829/0001104659-24-099829-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1680048/000110465924099829/tm2424041d1_8k.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001104659-24-099829
- JSON: https://secwatch.observer/filing/0001104659-24-099829.json
- Plain text: https://secwatch.observer/filing/0001104659-24-099829.txt

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