Figures computed from official regulatory filings — .
Ownershipinsiders 27.82% · institutions 21.08% · short 0.3% of float
In USD · as of Oct 26, 2026
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Marathon Bancorp, Inc. operates as a bank holding company for Marathon Bank that provides banking products and services in the United States. It offers deposit account products, including non-interest-bearing checking, interest-bearing checking, money market, savings, individual retirement, and certificate of deposit accounts. The company also provides lending products, such as one-to-four family residential real estate, commercial real estate, construction, commercial and industrial, multifamily real estate, and consumer loans, as well as home and personal loans. In addition, it offers vehicle and equipment financing, small business administration, commercial checking, credit and debit cards, and treasury management, as well as online and mobile banking services. Further, the company provides ATM facilities. Marathon Bancorp, Inc. was founded in 2020 and is based in Wausau, Wisconsin.
Market information source · Oct 26, 2026
SEC company identity · Oct 19, 2026
Open-market timeline · full history
38 buys— close pricebar = usd volume, √ scaleclick a period to filter the table
| Insider | Type | Value · USD | Signals | Details |
|---|---|---|---|---|
| Spatz Noratrack record | ExerciseD (derivative) | n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise)) | SEC |
| Spatz Noratrack record | Exercise | $9.8K | SEC |
| Spatz Noratrack record | ExerciseD (derivative) | n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise)) | SEC |
| Spatz Noratrack record | Exercise | $6.2K | SEC |
| Zillges Nicholas Wtrack record | Other | $19.7K | SEC |
| Selting-Buchberger Joy | Other | $8.1K | SEC |
| Cornish Terrytrack record | Other | $3.8K | SEC |
| Knopf Michelletrack record | Other | $3.5K | SEC |
| Spatz Noratrack record | Other | $7.8K | SEC |
| Zillges Nicholas Wtrack record | Buy | $14.6K | conv 48Cluster | SEC |
| Grimm Thomas L | Award | n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise)) | SEC |
| Wimmer Timothy R | Award | n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise)) | SEC |
| Werth Ann M | Award | n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise)) | SEC |
| Cornish Terrytrack record | AwardD (derivative) | n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise)) | SEC |
| Cornish Terrytrack record | Award | n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise)) | SEC |
| Knopf Michelletrack record | AwardD (derivative) | n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise)) | SEC |
| Zillges Nicholas Wtrack record | AwardD (derivative) | n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise)) | SEC |
| Wimmer Timothy R | AwardD (derivative) | n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise)) | SEC |
| Spatz Noratrack record | Award | n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise)) | SEC |
| Werth Ann M | AwardD (derivative) | n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise)) | SEC |
| Zientara Amy | Award | n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise)) | SEC |
| Spatz Noratrack record | AwardD (derivative) | n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise)) | SEC |
| Zillges Nicholas Wtrack record | Award | n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise)) | SEC |
| Grimm Thomas L | AwardD (derivative) | n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise)) | SEC |
| Knopf Michelletrack record | Award | n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise)) | SEC |