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NASDAQ · Finance

Marathon Bancorp, Inc. (MBBC)

Operating cash flow minus capital spending left $2M of free cash flow in fiscal 2026. At June 30, 2026 it held $20.8M in cash. Its latest periodic report to the SEC is the annual report (10-K) filed on September 16, 2026.

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Key facts about Marathon Bancorp, Inc.

Net worth

Marathon Bancorp, Inc. has a market value (market cap) of $42.7M at the latest share price, and shareholders' equity of $48M on its balance sheet at June 30, 2026. A company's "net worth" usually means one of these: what the market pays for all its shares, or its assets minus its liabilities.

Cash flow

In fiscal 2026 operations brought in $2.5M of cash; after $432.2K of capital spending, free cash flow was $2M.

Latest report

The latest periodic report (annual report, 10-K) was filed with the SEC on September 16, 2026 and covers the period to June 30, 2026. Open on SEC EDGAR

Next earnings report

Marathon Bancorp, Inc.'s next report is expected around November 11, 2026. That is an estimate from its filing rhythm, not a date the company has announced.

What Marathon Bancorp, Inc. does

Marathon Bancorp, Inc. is registered with the SEC under industry code SIC 6036 (Savings Institutions, Not Federally Chartered). Its shares trade on NASDAQ under the ticker MBBC.

Revenue and profit by year

Fiscal years as reported in annual reports. Amounts in USD.

Key figures

Earnings: every quarter and the next report date

Full financial statements: income, balance sheet and cash flow

Latest SEC filings

What Marathon Bancorp, Inc. has filed recently, newest first. Each links to the original document on SEC EDGAR.

1. October 1, 2026
   Executive or director change8-KMarathon Bancorp Chief Financial Officer Joy C. Selting-Buchberger announced her decision to retire on July 2, 2027.
2. September 16, 2026
   Annual report 10-K · period to June 30, 2026Diluted EPS $0.66 versus $0.02.
3. July 1, 2026
   Passive stake changed SCHEDULE 13G/A
4. July 1, 2026
   Passive stake (5% or more) SCHEDULE 13G
5. June 29, 2026
   Employee plan annual report 11-K
6. June 9, 2026
   Employee stock plan registration S-8
7. May 28, 2026
   Executive or director change 8-K
8. May 13, 2026
   Quarterly report 10-Q · period to March 31, 2026Diluted EPS $0.18 versus $0.05.
9. April 24, 2026
   Other event 8-K
10. April 24, 2026
    Proxy statement DEF 14A

Recent insider filings (Forms 3, 4 and 144): 10, the latest on September 18, 2026. Insider transactions on SEC

Insider trades

What the people running Marathon Bancorp, Inc. did with its shares, from the Form 4 filings they must send the SEC within two business days.

No insider bought or sold shares on the open market in the last 90 days. The 2 reported changes were pay in shares, option exercises, shares withheld for tax or gifts.

All insider filings on SEC.gov · Where insiders are buying across the market

Who owns MBBC

Three views from three kinds of SEC filings, each with its own date. They overlap and are not added up.

5% holders

Anyone who owns more than 5% of a class of shares must say so on Schedule 13D (if they may seek to influence the company) or 13G (a passive holder). The latest filing of each holder is shown: 13G filings of the last 2 years, 13D of the last 3.

Largest institutional holders

Positions that investment managers reported on Form 13F for the quarter ended June 30, 2026, largest first, with the change on the quarter ended March 31, 2026. Managers file 13F up to 45 days after a quarter ends. 12 managers reported a position.

Insiders

Reported holdings of insiders who filed a Form 4 in the last 12 months: the shares each one held after their latest reported transaction. This is not the total held by all insiders.

9 insiders reported holding 326,527 shares in total, about $4.7M at the last price.

Schedule 13D/13G filings on SEC.gov

All filings on SEC EDGAR

Questions about MBBC

What does Marathon Bancorp, Inc. do?

Marathon Bancorp, Inc. is a company in the Finance sector, listed on NASDAQ as MBBC. Its shares trade on NASDAQ under the ticker MBBC.

What is Marathon Bancorp, Inc.'s net worth?

Marathon Bancorp, Inc. has a market value (market cap) of $42.7M at the latest share price, and shareholders' equity of $48M on its balance sheet at June 30, 2026. A company's "net worth" usually means one of these: what the market pays for all its shares, or its assets minus its liabilities.

Is Marathon Bancorp, Inc. profitable?

Yes. In fiscal 2026 it reported net income of $1.8M.

When did Marathon Bancorp, Inc. last report?

Its most recent periodic report is the annual report (10-K) filed on September 16, 2026. It covers the period to June 30, 2026. Its newest filing of any kind is the executive or director change from October 1, 2026.

When is Marathon Bancorp, Inc.'s next earnings report?

Marathon Bancorp, Inc.'s next report is expected around November 11, 2026. That is an estimate from its filing rhythm, not a date the company has announced.

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Where the numbers come from

Financial figures are the values Marathon Bancorp, Inc. tagged in its own SEC filings (XBRL), taken from the latest filing for each period, so restatements replace older figures. Revenue, profit and cash flow are for full fiscal years unless marked as the last twelve months, which is the sum of the four most recent quarters. Where a company reports only the full year, the fourth quarter is the year minus the first three.

Prices are delayed end-of-day market data in the listing currency, and market cap moves with the price. P/E is shown only when earnings per share are positive. Nothing here is investment advice.