---
schema_version: "secwatch.filing_event.v1"
accession: "0001437749-25-032884"
form_type: "8-K"
ticker: "MNSB"
cik: "0001693577"
company_name: "MainStreet Bancshares, Inc."
filed_at: "2025-11-04T23:59:59+00:00"
generated_at: "2026-05-17T00:39:26.003453+00:00"
event_type: "other"
sentiment: "positive"
materiality_score: 0.6
calibrated_materiality_score: 0.6
confidence: "high"
source: SEC EDGAR
---

# MainStreet Bancshares repurchases 209,000 shares at $18.54, below tangible book value of $24.81

## Summary
- Repurchased 209,000 shares at $18.54 per share under existing buyback program.
- Tangible book value was $24.81 as of Sept 30, 2025; repurchase price is a 25% discount.
- Shares outstanding reduced to 7,496,571; $6.1 million remaining capacity.

## SEC filing metadata
- accession: 0001437749-25-032884
- form_type: 8-K
- ticker: MNSB
- cik: 0001693577
- company_name: MainStreet Bancshares, Inc.
- filed_at: 2025-11-04T23:59:59+00:00
- event_type: other
- sentiment: positive
- materiality_score: 0.6
- calibrated_materiality_score: 0.6
- confidence: high
- sec_items: 8.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1693577/000143774925032884/0001437749-25-032884-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1693577/000143774925032884/main20251103_8k.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001437749-25-032884
- JSON: https://secwatch.observer/filing/0001437749-25-032884.json
- Plain text: https://secwatch.observer/filing/0001437749-25-032884.txt

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