---
schema_version: "secwatch.filing_event.v1"
accession: "0001104659-25-013029"
form_type: "8-K"
ticker: "MBIO"
cik: "0001680048"
company_name: "MUSTANG BIO, INC."
filed_at: "2025-02-13T23:59:59+00:00"
generated_at: "2026-05-26T22:20:50.279992+00:00"
event_type: "other_material"
sentiment: "positive"
materiality_score: 0.65
calibrated_materiality_score: 0.65
confidence: "high"
source: SEC EDGAR
---

# Mustang Bio sells FF&E for $1M, terminates Worcester lease; expects ~$2M savings

## Summary
- Sold FF&E to AbbVie for $1.0M cash; lease termination expected to save ~$2.0M in lease obligations.
- Lease base term (ending Oct 2026) terminated early; company to vacate 377 Plantation St within ~20 business days.
- Waived lease extension options; no further rent or operating expenses after Early Termination Date.
- Escrow agent holds purchase price pending inspection of FF&E condition; agreement provides for price adjustment if FF&E insufficient.

## SEC filing metadata
- accession: 0001104659-25-013029
- form_type: 8-K
- ticker: MBIO
- cik: 0001680048
- company_name: MUSTANG BIO, INC.
- filed_at: 2025-02-13T23:59:59+00:00
- event_type: other_material
- sentiment: positive
- materiality_score: 0.65
- calibrated_materiality_score: 0.65
- confidence: high
- sec_items: 1.01, 1.02
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1680048/000110465925013029/0001104659-25-013029-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1680048/000110465925013029/tm256594d1_8k.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001104659-25-013029
- JSON: https://secwatch.observer/filing/0001104659-25-013029.json
- Plain text: https://secwatch.observer/filing/0001104659-25-013029.txt

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