---
schema_version: "secwatch.filing_event.v1"
accession: "0001104659-25-000343"
form_type: "8-K"
ticker: "MBIO"
cik: "0001680048"
company_name: "MUSTANG BIO, INC."
filed_at: "2025-01-02T23:59:59+00:00"
generated_at: "2026-05-28T18:27:31.708125+00:00"
event_type: "other"
sentiment: "neutral"
materiality_score: 0.15
calibrated_materiality_score: 0.15
confidence: "high"
source: SEC EDGAR
---

# Mustang Bio shareholders elect seven directors, ratify KPMG as auditor

## Summary
- All seven director nominees elected with at least 58.3M votes for each; broker non-votes none.
- KPMG LLP ratified as independent auditor for FY 2024 with 59.4M for, 62.7K against, 30.6K abstain.
- Approximately 58% of total votes were represented at the virtual annual meeting on Dec. 26, 2024.
- Outstanding shares: 48.8M common, 0.8M Class A common, 0.25M Class A preferred.

## SEC filing metadata
- accession: 0001104659-25-000343
- form_type: 8-K
- ticker: MBIO
- cik: 0001680048
- company_name: MUSTANG BIO, INC.
- filed_at: 2025-01-02T23:59:59+00:00
- event_type: other
- sentiment: neutral
- materiality_score: 0.15
- calibrated_materiality_score: 0.15
- confidence: high
- sec_items: 5.07
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1680048/000110465925000343/0001104659-25-000343-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1680048/000110465925000343/tm251702d1_8k.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001104659-25-000343
- JSON: https://secwatch.observer/filing/0001104659-25-000343.json
- Plain text: https://secwatch.observer/filing/0001104659-25-000343.txt

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