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If You Invested in Marathon Bancorp Inc (MBBC)

Savings Institutions, Not Federally Chartered · Banks - Regional · NASDAQ
Looking for the live price? See the MBBC quote & overview
$1,000 invested 1 Year Ago
$1,528
+52.8% total 53.8% CAGR
Bought on Jul 7, 2025 at $9.98
$1,000 invested 5 Years Ago
$1,450
+45.0% total 7.7% CAGR
Bought on Jul 6, 2021 at $10.52

What $1,000 or $10,000 in MBBC Would Be Worth Today

Real historical value by amount invested and how long ago
If you invested 1 year ago 5 years ago 10 years ago Since Apr 22, 2021
$1,000 $1,528 +53% $1,450 +45% $1,502 +50%
$10,000 $15,281 +53% $14,496 +45% $15,025 +50%

Based on real historical closing prices through the latest market close. Past performance does not guarantee future results.

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$1,000 Investment Over Time

MBBC vs S&P 500

Year-by-Year Returns

MBBC annual performance
Year Start Price End Price Annual Return Cumulative
2021 $10.15 $10.75 +5.9% +5.9%
2022 $10.75 $11.25 +4.7% +10.8%
2023 $11.25 $9.34 -17.0% -8.0%
2024 $9.34 $14.00 +49.9% +37.9%
2025 $13.71 $12.16 -11.3% +19.8%
2026 $12.19 $15.25 +25.1% +50.2%

About Marathon Bancorp Inc

Savings Institutions, Not Federally Chartered · NASDAQ

Marathon Bancorp, Inc. (MBBC) is the holding company for Marathon Bank, a Wisconsin-chartered savings bank. According to company disclosures and regulatory filings, Marathon Bank operates as a community-oriented financial institution that focuses on serving customers in Wisconsin. The bank offers traditional deposit accounts and a range of loan products, and Marathon Bancorp, Inc. generates the majority of its revenue from interest income on loans and debt securities.

Marathon Bancorp, Inc. is incorporated in Maryland and its common stock is registered on The Nasdaq Stock Market LLC under the trading symbol MBBC, as noted in its SEC filings. The organization structure places Marathon Bank as a wholly owned subsidiary of Marathon Bancorp, Inc. The bank is described in company communications as a Wisconsin-chartered savings bank headquartered in Wausau, Wisconsin, conducting business from its main office and branch offices located in Marathon and Ozaukee Counties.

Community banking focus

Available information describes Marathon Bank as a community bank that has served Marathon County for many years and expanded into Southeastern Wisconsin. The bank emphasizes serving local communities through convenient branches and products that address day-to-day banking needs. Marathon Bank provides traditional deposit services, including checking, savings, money market, certificates of deposit and individual retirement accounts. It also offers residential, commercial and construction loans, mortgages, home equity loans and small business loans. Business customers have access to business banking services that include treasury management products, deposit accounts and online services.

Marathon Bancorp, Inc. is classified in public data as a regional bank within the financial services sector. The company’s primary deposit products include demand deposits, savings accounts and certificates of deposit. Its primary lending products include commercial real estate, commercial and industrial, construction, one-to-four-family residential, multifamily real estate and consumer loans. The majority of the group’s revenue comes from interest income on loans and debt securities, as described in third-party company summaries.

Corporate structure and conversions

Marathon Bancorp, Inc. and Marathon Bank have undergone several corporate structure changes documented in public news releases and SEC-related communications. In 2021, Marathon Bank completed a reorganization into a mutual holding company structure, with Marathon Bancorp, Inc. formed as the bank’s holding company. In connection with that reorganization, Marathon Bancorp, Inc. conducted a stock offering in which a portion of its shares were sold to subscribers and the remainder were issued to Marathon MHC, its mutual holding company.

Subsequently, Marathon Bancorp, Inc. adopted a Plan of Conversion and Reorganization to undertake a so‑called second step conversion. Under this plan, Marathon MHC, which previously held a majority of Marathon Bancorp, Inc.’s outstanding common stock, would convert from the mutual holding company structure to a fully stock holding company structure. The plan contemplated that Marathon MHC would merge into Marathon Bancorp, Inc. and cease to exist, and that Marathon Bancorp, Inc. would conduct a stock offering to sell shares representing the former mutual holding company’s ownership interest to eligible depositors and other investors.

Company news reports state that this conversion and related stock offering have been completed. Following the completion of the conversion, Marathon MHC ceased to exist, and Marathon Bancorp, Inc. reported that a specified number of shares of common stock were outstanding as a result of the transaction, before adjustments for fractional shares. The company also reported that its common stock is expected to trade, and later to trade, on the Nasdaq Capital Market under the symbol MBBC.

Shareholder base and governance

Marathon Bancorp, Inc. is a publicly traded company with its common stock registered under the Securities Exchange Act of 1934. In its definitive proxy statement, the company reports that its shares of common stock have a par value of $0.01 per share and that stockholders of record as of a specified record date are entitled to one vote per share, subject to certain limitations. The company’s articles of incorporation provide that, subject to exceptions, record owners of common stock that is beneficially owned by a person holding more than a specified percentage of outstanding shares are not entitled to vote shares held in excess of that limit.

The proxy statement also describes the process for the annual meeting of stockholders, including the election of directors and the ratification of the appointment of the independent registered public accounting firm. It notes that directors and executive officers, as well as a representative of the independent registered public accounting firm, are expected to be present to respond to stockholder questions. The filing includes detailed information on beneficial ownership of common stock by directors, executive officers and principal holders, as well as the role of the Marathon Bank Employee Stock Ownership Plan Trust as a significant shareholder.

Branch network and geographic focus

Company communications describe Marathon Bank as conducting business from its main office and three branch offices located in Marathon and Ozaukee Counties in Wisconsin. The bank highlights its presence in Marathon County and its expansion into Southeastern Wisconsin. This geographic focus supports its positioning as a community bank serving local individuals, families and businesses through in‑person branches and banking services.

Capital management and stock programs

Marathon Bancorp, Inc. has used stock repurchase programs and public offerings as part of its capital management approach. In a public announcement, the company stated that it adopted a stock repurchase program authorizing the repurchase of up to approximately 5% of its outstanding common stock. The company indicated that repurchases may be made in open market or private transactions, through block trades, or pursuant to any trading plan that may be adopted in accordance with SEC rules. The timing and amount of repurchases may be adjusted or suspended based on factors such as market conditions, the trading price of the stock, alternative uses of capital, liquidity and the company’s financial performance.

In connection with its second step conversion, Marathon Bancorp, Inc. announced a stock offering of common shares at a specified price per share, to be conducted first through a subscription offering to certain depositors of Marathon Bank and to the bank’s employee stock ownership plan. Shares not subscribed for in the subscription offering could be offered to members of the general public in a community offering, with a preference for natural persons residing in specified Wisconsin counties and then to existing public stockholders as of a stated date. The company also described the expected exchange ratio for converting existing minority shares into new shares of common stock as part of the conversion transaction.

Leadership and operations at Marathon Bank

Marathon Bank has highlighted leadership developments in its public communications. In one announcement, the bank reported the promotion of an experienced banking professional to the role of Chief Operating Officer. The bank noted that this individual had extensive experience in the banking industry and had contributed to the bank’s growth, including expansion into Southeast Wisconsin, with experience spanning mortgage services, commercial lending, operations and regulatory compliance.

The bank’s description of its services emphasizes traditional deposit products such as checking, savings, money market, certificates of deposit and individual retirement accounts. It also references residential, commercial and construction loans, mortgages, home equity loans and small business loans, along with business banking services that include treasury management products, deposit accounts and online services. These offerings align with its role as a community bank serving both consumer and business customers in its regional markets.

Regulatory reporting and investor information

As a Nasdaq‑listed bank holding company, Marathon Bancorp, Inc. files periodic and current reports, proxy statements and other documents with the Securities and Exchange Commission. Its filings include annual reports, quarterly reports, proxy statements for annual meetings and current reports on Form 8‑K describing material events, such as stockholder votes and corporate actions. The company has also filed registration statements and prospectuses with the SEC in connection with its stock offerings related to its mutual holding company reorganization and second step conversion.

In connection with its offerings, Marathon Bancorp, Inc. has emphasized that its shares of common stock are not savings accounts or savings deposits, may lose value and are not insured by the Federal Deposit Insurance Corporation or any other government agency. The company has also directed prospective investors to review its prospectus and related SEC filings for more complete information about the company and the stock offering.

Market Cap
$0.0B
Current Price
$15.25
EPS
$0.02
Revenue
$0.0B
Net Margin
0.4%
View full MBBC overview

Frequently Asked Questions

Marathon Bancorp Inc investment returns

How much would $1,000 invested in Marathon Bancorp Inc be worth today?

If you invested $1,000 in Marathon Bancorp Inc (MBBC) 5 years ago on 2021-07-06, your investment would be worth $1,450 today, representing a +45.0% total return, growing at a compounded rate of 7.7% per year (CAGR).

Has Marathon Bancorp Inc outperformed the S&P 500?

Comparison data requires at least 10 years of trading history. Use the calculator above to compare MBBC performance over available time periods.

What is Marathon Bancorp Inc's average annual return?

The compound annual growth rate (CAGR) of MBBC over the past 5 years is 7.7%, growing at a compounded rate each year. Individual years vary significantly — MBBC's best recent year was 2024 (+49.9%) and worst was 2023 (-17.0%).

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