Here are the 10-K annual reports from Marathon Bancorp, Inc. (MBBC) in our archive since June 2025, newest first, and each one links through to the document itself with the summary and the scores our analysis gives it.
A 10-K covers the audited annual report, with the full financial statements, so if you follow MBBC and want that one kind of document rather than the whole filing history, this is the page to keep. The company's other filings, of every form, are on the full MBBC filings page.
Marathon Bancorp, Inc. (MBBC), the holding company for Marathon Bank, reports a community‑bank balance sheet with $261.0 million in consolidated assets, $189.8 million in deposits and $48.0 million in stockholders’ equity at June 30, 2026.
The company completed its April 2025 mutual‑to‑stock conversion, selling 1,693,411 shares at $10.00 per share and generating $16.9 million in gross proceeds (about $15.2 million net after $1.7 million in expenses). It also expanded its ESOP financing to $2.1 million, to be repaid over 25 years.
Loans total $219.3 million, led by commercial real estate ($95.9 million, 43.7%), multifamily ($53.9 million, 24.6%) and one‑ to four‑family mortgages ($63.5 million, 29.0%). Credit quality appears strong: the allowance for credit losses is $1.75 million (0.80% of loans), with no charge‑offs in 2026 and an allowance‑to‑nonperforming‑loans ratio above 2,600%.
Funding is largely core deposits of $114.9 million (60.1% of deposits), supplemented by $14.0 million in brokered CDs and $20.0 million in FHLB advances. Uninsured deposits total $77.3 million. Marathon Bank is well above required capital levels, with a Wisconsin net worth ratio of 15.45% and use of the community bank leverage ratio framework, and it continues to pursue commercial and multifamily growth in its Wisconsin markets.
Marathon Bancorp, Inc. (MBBC) annual report highlights operations as a community bank focused on lending and deposit services. The company reports 2,938,698 shares outstanding and completed a conversion with a 1.3728-to-1 exchange ratio, priced at $10.00 per share when it began trading on Nasdaq as MBBC. The ESOP received loans combined into a $2.1 million term loan repayable through 2049 and 231,528 shares remain unreleased with a market value of ~$2.31 million at June 30, 2025. Eligible collateral pledged to FHLB was $70.6 million at June 30, 2025 (compared with $92.2 million a year earlier) and FHLB stock pledged was $1,329,413. A foreclosed property previously valued at $2.3 million was adjusted to $1.4 million with a $937,100 valuation allowance in 2024; an accepted $1.1 million sale offer in August 2025 led to a $378,767 allowance in 2025, sale not closed as of Sept 26, 2025. The bank exercised the AOCI opt-out for regulatory capital purposes.