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Marathon Bancorp, Inc. (MBBC)

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

Marathon Bancorp, Inc. (MBBC) is a Banks - Regional company based in US with a market capitalization of $40.8M. Revenue grew 1.4% year-over-year and the company generated $1.3M in free cash flow. This page tracks MBBC's SEC filings, insider buying and selling, earnings dates, and key fundamentals in one place.

US · 35 employees · IPO Apr 21, 2021

Valuation

Valuation & price

$14.50 · as of May 17, 2026 · -6.4% vs 52w high

944.2

P/E ratio

Latest-FY diluted EPS

0.89

P/B ratio

Market cap ÷ book equity

—

Dividend yield

Price — last 12 months

$15.49$12.73$9.98Jul 25Dec 25Jul 26Jul 7, 25$9.98Jul 9, 25$10.00Jul 11, 25$10.02Jul 15, 25$10.03Jul 17, 25$10.04Jul 21, 25$10.05Jul 23, 25$10.05Jul 25, 25$10.10Jul 29, 25$10.08Jul 31, 25$10.06Aug 4, 25$10.08Aug 6, 25$10.09Aug 11, 25$10.02Aug 13, 25$10.13Aug 15, 25$10.13Aug 19, 25$10.14Aug 21, 25$10.33Aug 25, 25$10.38Aug 27, 25$10.33Aug 29, 25$10.33Sep 3, 25$10.35Sep 5, 25$10.37Sep 9, 25$10.20Sep 11, 25$10.20Sep 16, 25$10.25Sep 18, 25$10.35Sep 22, 25$10.40Sep 24, 25$10.48Sep 26, 25$10.43Sep 30, 25$10.43Oct 2, 25$10.45Oct 6, 25$10.40Oct 8, 25$10.50Oct 10, 25$10.50Oct 14, 25$11.15Oct 16, 25$10.89Oct 21, 25$10.74Oct 23, 25$10.80Oct 27, 25$10.72Oct 29, 25$10.82Oct 31, 25$10.89Nov 4, 25$10.90Nov 6, 25$10.80Nov 10, 25$10.53Nov 12, 25$10.75Nov 14, 25$10.86Nov 18, 25$11.27Nov 20, 25$11.53Nov 25, 25$11.70Nov 28, 25$11.15Dec 2, 25$11.42Dec 4, 25$11.17Dec 8, 25$11.39Dec 10, 25$11.14Dec 12, 25$11.61Dec 16, 25$11.98Dec 18, 25$12.06Dec 22, 25$12.39Dec 24, 25$12.20Dec 29, 25$12.36Jan 2, 26$12.19Jan 6, 26$12.18Jan 8, 26$11.77Jan 12, 26$12.25Jan 14, 26$12.35Jan 16, 26$12.87Jan 21, 26$12.28Jan 23, 26$12.65Jan 27, 26$12.62Jan 29, 26$13.00Feb 2, 26$12.94Feb 4, 26$12.94Feb 9, 26$13.75Feb 11, 26$13.44Feb 13, 26$13.44Feb 18, 26$13.25Feb 20, 26$13.25Feb 24, 26$13.29Feb 26, 26$13.54Mar 2, 26$14.64Mar 4, 26$14.07Mar 6, 26$14.00Mar 10, 26$13.81Mar 12, 26$13.81Mar 17, 26$13.01Mar 19, 26$13.66Mar 23, 26$13.99Mar 25, 26$14.15Mar 27, 26$13.59Mar 31, 26$13.53Apr 2, 26$14.14Apr 7, 26$13.80Apr 9, 26$14.15Apr 13, 26$13.64Apr 15, 26$14.20Apr 17, 26$14.08Apr 22, 26$14.27Apr 24, 26$14.97Apr 28, 26$15.39Apr 30, 26$14.25May 4, 26$14.64May 6, 26$14.64May 8, 26$15.30May 12, 26$15.13May 14, 26$14.96May 18, 26$14.26May 20, 26$13.75May 22, 26$13.37May 28, 26$13.60Jun 1, 26$13.69Jun 3, 26$13.75Jun 5, 26$14.40Jun 9, 26$14.71Jun 11, 26$14.30Jun 15, 26$14.55Jun 17, 26$14.83Jun 22, 26$15.22Jun 24, 26$14.95Jun 26, 26$15.49Jul 2, 26$15.25
$9.9852-week range$15.49
Loading valuation history…

Fundamentals

Key fundamentals

$40.8M

Market cap

1.4%

Revenue growth (YoY)

66.8%

Gross margin

$1.3M

Free cash flow (USD)

$10.7M

Net debt

85.8%

Share dilution

1/4

Graham criteria passed

Defensive-investor screen

Financial Services

Sector

Trajectory

Long-term trends

Revenue by year

2019 → 2025

FY 2019$6.7MFY 2020$6.8MFY 2021$8.3MFY 2022$8.2MFY 2023$10.3MFY 2024$10.2MFY 2025$10.3M
$6.7M$10.3M

Free cash flow by year

2019 → 2025

FY 2019$-79.0KFY 2020$772.0KFY 2021$943.5KFY 2022$791.4KFY 2023$1.9MFY 2024$-1.8MFY 2025$1.3M
-$79K$1.3M

Gross margin by year

2021 → 2025

FY 202186.8%FY 202288.4%FY 202377.8%FY 202466.5%FY 202566.8%
86.8%66.8%

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 13, 2026

Next expected: not yet scheduled

On the tape

Recent SEC & insider activity

  • 8-K eventEquity Incentive Plan ApprovedMay 28, 2026Filing
  • Quarterly report10-Q FiledMay 13, 2026Filing
  • 8-K eventStock Repurchase ProgramApr 24, 2026Filing

Questions

Frequently asked questions

What is Marathon Bancorp, Inc.'s market cap?

Marathon Bancorp, Inc. (MBBC) has a market capitalization of $40.8M.

What is MBBC's P/E ratio?

MBBC trades at a price-to-earnings ratio of 944.2, based on its latest fiscal-year diluted earnings per share and the most recent cached price.

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

MBBC trades at 0.89 times book value per share.

Are insiders buying MBBC stock?

SEC Form 4 filings show no open-market insider buys at Marathon Bancorp, 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

Search the actual 10-K / 10-Q text with AI research angles

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.