Marathon Bancorp Inc (NASDAQ: MBBC) is a bank holding company that operates Marathon Bank, a community bank offering real estate loans, commercial and industrial loans, and consumer deposit products. The company earns income primarily through net interest income, collecting interest on loans and investment securities while paying interest on deposits. As of June 30, 2025, total loans outstanding were approximately $202.6 million, with the portfolio concentrated in commercial real estate (45.4% of total loans), one- to four-family residential real estate (27.8%), and multifamily real estate (23.6%). Total average assets for the fiscal year ended June 30, 2025 were $223.8 million, down from $233.6 million in FY2024. The company listed its common stock on the Nasdaq Capital Market on April 22, 2025, having previously traded on the OTCID Market. As of September 25, 2025, there were 2,938,698 shares outstanding and 297 stockholders of record. No cash dividends were paid in FY2025 or FY2024. CEO Nicholas W. Zillges has been with Marathon Bank under an employment agreement dated April 14, 2021.

Revenue model

Net interest income from loans (average yield 4.73% in FY2025) and investment securities (2.64%), funded by interest-bearing deposits including demand, NOW, money market, and savings accounts. Total interest income on earning assets was $9.6 million in FY2025 on average earning assets of $204.4 million.

Products and services

Loan products: one- to four-family residential real estate loans ($56.3 million total), commercial real estate loans ($91.9 million), multifamily real estate loans ($47.8 million), construction loans ($0.7 million), commercial and industrial loans ($3.9 million), and consumer loans ($2.0 million), as of June 30, 2025. Deposit products: demand, NOW, money market, and savings accounts.

Customers and end markets

Retail and commercial borrowers in the community banking market. End markets include residential real estate, commercial real estate, multifamily housing, and small business lending. No customer concentration data disclosed in the filing excerpts.

Value-chain role

Community bank and bank holding company. Originates and holds loans on balance sheet, funded by retail and commercial deposits. Operates as a direct lender rather than a mortgage originator that sells into the secondary market.

Geographic exposure

Geographic footprint not specified in the filing excerpts beyond regulatory references to community banking obligations.

Source: SEC 10-K, filed 2025-09-26

Industry: Savings Institutions, Not Federally Chartered