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MainStreet Bancshares, Inc. (MNSB)

MainStreet Bancshares, Inc. at a glance — key fundamentals, SEC filings, insider buying and selling, and earnings dates.

MainStreet Bancshares, Inc. (MNSB) is a Banks - Regional company based in US with a market capitalization of $164.2M. Revenue declined 1.4% year-over-year and the company generated $10.6M in free cash flow. This page tracks MNSB's SEC filings, insider buying and selling, earnings dates, and key fundamentals in one place.

US · 182 employees · IPO Sep 6, 2005

Valuation

Valuation & price

$22.07 · as of May 17, 2026 · -12.1% vs 52w high

10.8

P/E ratio

Latest-FY diluted EPS

0.75

P/B ratio

Market cap ÷ book equity

—

Dividend yield

Price — last 12 months

$25.10$21.63$18.15Jul 25Dec 25Jul 26Jul 7, 25$20.20Jul 9, 25$20.21Jul 11, 25$20.00Jul 15, 25$19.51Jul 17, 25$19.61Jul 21, 25$19.99Jul 23, 25$21.66Jul 25, 25$21.16Jul 29, 25$20.55Jul 31, 25$20.20Aug 4, 25$19.95Aug 6, 25$19.70Aug 11, 25$20.42Aug 13, 25$21.74Aug 15, 25$21.30Aug 19, 25$21.69Aug 21, 25$21.75Aug 25, 25$22.70Aug 27, 25$22.86Aug 29, 25$22.65Sep 3, 25$22.32Sep 5, 25$22.13Sep 9, 25$21.92Sep 11, 25$21.70Sep 16, 25$21.21Sep 18, 25$21.09Sep 22, 25$21.42Sep 24, 25$21.10Sep 26, 25$21.03Sep 30, 25$20.83Oct 2, 25$20.31Oct 6, 25$20.01Oct 8, 25$19.68Oct 10, 25$19.01Oct 14, 25$19.32Oct 16, 25$18.40Oct 21, 25$18.54Oct 23, 25$18.65Oct 27, 25$19.33Oct 29, 25$18.53Oct 31, 25$18.55Nov 4, 25$18.66Nov 6, 25$18.18Nov 10, 25$18.15Nov 12, 25$18.32Nov 14, 25$18.69Nov 18, 25$18.20Nov 20, 25$18.61Nov 25, 25$19.43Nov 28, 25$19.49Dec 2, 25$19.72Dec 4, 25$20.05Dec 8, 25$20.05Dec 10, 25$20.38Dec 12, 25$21.50Dec 16, 25$21.74Dec 18, 25$22.00Dec 22, 25$20.97Dec 24, 25$21.11Dec 29, 25$20.71Jan 2, 26$19.86Jan 6, 26$19.86Jan 8, 26$20.31Jan 12, 26$20.03Jan 14, 26$20.06Jan 16, 26$20.31Jan 21, 26$20.21Jan 23, 26$20.51Jan 27, 26$20.61Jan 29, 26$21.16Feb 2, 26$22.38Feb 4, 26$22.86Feb 9, 26$22.68Feb 11, 26$22.44Feb 13, 26$22.28Feb 18, 26$22.23Feb 20, 26$22.81Feb 24, 26$22.20Feb 26, 26$22.90Mar 2, 26$22.21Mar 4, 26$22.68Mar 6, 26$22.11Mar 10, 26$22.21Mar 12, 26$21.49Mar 17, 26$21.61Mar 19, 26$21.27Mar 23, 26$21.75Mar 25, 26$22.01Mar 27, 26$21.81Mar 31, 26$22.20Apr 2, 26$22.48Apr 7, 26$22.70Apr 9, 26$23.61Apr 13, 26$23.28Apr 15, 26$23.36Apr 17, 26$24.24Apr 22, 26$23.56Apr 24, 26$23.86Apr 28, 26$24.75Apr 30, 26$23.42May 4, 26$23.13May 6, 26$23.36May 8, 26$23.50May 12, 26$22.91May 14, 26$22.66May 18, 26$22.39May 20, 26$22.99May 22, 26$23.04May 28, 26$23.04Jun 1, 26$22.96Jun 3, 26$22.67Jun 5, 26$23.87Jun 9, 26$24.09Jun 11, 26$24.40Jun 15, 26$24.17Jun 17, 26$23.59Jun 22, 26$24.11Jun 24, 26$24.74Jun 26, 26$25.10Jul 2, 26$24.79
$18.1252-week range$25.10
Loading valuation history…

Fundamentals

Key fundamentals

$164.2M

Market cap

-1.4%

Revenue growth (YoY)

54.4%

Gross margin

$10.6M

Free cash flow (USD)

$43.1M

Net debt

0.6%

Share dilution

1/4

Graham criteria passed

Defensive-investor screen

Financial Services

Sector

Trajectory

Long-term trends

Revenue by year

2016 → 2025

FY 2016$23.1MFY 2017$29.2MFY 2018$47.1MFY 2019$63.7MFY 2020$69.5MFY 2021$70.3MFY 2022$88.7MFY 2023$127.8MFY 2024$137.9MFY 2025$135.9M
$23.1M$135.9M

Free cash flow by year

2016 → 2025

FY 2016$5.3MFY 2017$4.3MFY 2018$11.2MFY 2019$15.7MFY 2020$15.7MFY 2021$24.8MFY 2022$25.8MFY 2023$25.6MFY 2024$9.0MFY 2025$10.6M
$5.3M$10.6M

Gross margin by year

2021 → 2025

FY 202186.5%FY 202282.2%FY 202361.4%FY 202442.8%FY 202554.4%
86.5%54.4%

Value screen

Graham defensive-investor tests

Computing the scorecard — refreshing any stale inputs…

0

Insider buys · 90 days

0

Insider sells · 90 days

Earnings

Last report: 10-Q filed May 8, 2026

Next expected: not yet scheduled

On the tape

Recent SEC & insider activity

  • FinancingSecurities RegistrationJun 3, 2026Filing
  • 8-K eventShare RepurchaseMay 26, 2026Filing
  • 8-K eventAnnual Meeting ResultsMay 22, 2026Filing
  • FinancingSecurities RegistrationMay 15, 2026Filing
  • Quarterly report10-Q FiledMay 8, 2026Filing
  • 8-K eventShare RepurchaseApr 24, 2026Filing
  • 8-K eventDividend DeclaredApr 21, 2026Filing
  • 8-K eventEarnings ReleaseApr 20, 2026Filing
  • 8-K eventCBO AppointmentApr 13, 2026Filing
  • 8-K eventEarnings ReleaseApr 6, 2026Filing

Questions

Frequently asked questions

What is MainStreet Bancshares, Inc.'s market cap?

MainStreet Bancshares, Inc. (MNSB) has a market capitalization of $164.2M.

What is MNSB's P/E ratio?

MNSB trades at a price-to-earnings ratio of 10.8, based on its latest fiscal-year diluted earnings per share and the most recent cached price.

What is MNSB's price-to-book (P/B) ratio?

MNSB trades at 0.75 times book value per share.

Are insiders buying MNSB stock?

SEC Form 4 filings show no open-market insider buys at MainStreet Bancshares, Inc. in the last 90 days (0 sells).

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Timeline

Every filing, insider trade & earnings on a price-anchored timeline

Filing Analyzer

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News

Latest press coverage in one feed

Data: SEC EDGAR filings and cached fundamental data; prices and ratios use the most recent cached quote and statements (may lag by up to a day). Educational and research purposes only. Not investment advice.