Marathon Bancorp, Inc. /MD/ — Investor Relations & Filings
Marathon Bancorp, Inc. is the bank holding company for its wholly-owned subsidiary, Marathon Bank. Headquartered in Wausau, Wisconsin, Marathon Bank was founded in 1902 and operates as a community-focused financial institution. The bank provides a comprehensive suite of financial products and services to both individual and business customers. Its offerings include traditional deposit services such as checking, savings, money market accounts, and certificates of deposit. The lending division originates residential, commercial, and construction loans, in addition to mortgages, home equity loans, and small business loans. Marathon Bank also offers a suite of business banking services, including cash management products and feature-rich online services, with a specialization in commercial and mortgage banking.
Recent filings
| Filing | Released | Lang | Actions |
|---|---|---|---|
| 8-K - Marathon Bancorp, Inc. /MD/ (0001835385) (Filer) | 2026-04-24 | English | |
| DEF 14A - Marathon Bancorp, Inc. /MD/ (0001835385) (Filer) | 2026-04-24 | English | |
| 4 - Marathon Bancorp, Inc. /MD/ (0001835385) (Issuer) | 2026-03-20 | English | |
| 4 - Marathon Bancorp, Inc. /MD/ (0001835385) (Issuer) | 2026-03-18 | English | |
| 4 - MARATHON BANCORP, INC. /MD/ (0001835385) (Filer) | 2026-02-24 | English | |
| SCHEDULE 13G Filing | 2026-02-17 | English |
| ID | Filing | Released | Lang | Actions | |
|---|---|---|---|---|---|
|
2026
7 filings
| |||||
| 36131702 | 8-K - Marathon Bancorp, Inc. /MD/ (0001835385) (Filer) | 2026-04-24 | English | ||
| 36127460 | DEF 14A - Marathon Bancorp, Inc. /MD/ (0001835385) (Filer) | 2026-04-24 | English | ||
| 33002316 | 4 - Marathon Bancorp, Inc. /MD/ (0001835385) (Issuer) | 2026-03-20 | English | ||
| 32979891 | 4 - Marathon Bancorp, Inc. /MD/ (0001835385) (Issuer) | 2026-03-18 | English | ||
| 32899471 | 4 - MARATHON BANCORP, INC. /MD/ (0001835385) (Filer) | 2026-02-24 | English | ||
| 31989963 | SCHEDULE 13G Filing | 2026-02-17 | English | ||
| 31989966 | 10-Q Filing | 2026-02-11 | English | ||
|
2025
8 filings
| |||||
| 13348660 | FORM 4 | 2025-12-03 | English | ||
| 13348657 | FORM 4 | 2025-12-03 | English | ||
| 13348659 | FORM 4 | 2025-12-03 | English | ||
| 13348658 | OWNERSHIP DOCUMENT | 2025-11-28 | English | ||
| 13348663 | FORM 8-K | 2025-11-18 | English | ||
| 13348662 | FORM 4 | 2025-11-14 | English | ||
| 13348661 | 10-Q | 2025-11-12 | English | ||
| 13348667 | ARS | 2025-10-15 | English | ||
Market data
Market data not available
Price history
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Marathon Bancorp, Inc. /MD/ via the API
Pull this company's filings, identifiers, and metadata as JSON or Markdown. Authenticate with your API key, then query by company ID, ISIN, or LEI. Full schema documented in the OpenAPI spec.
Endpoints
| GET | /api/companies/34794/ | Company identity, sector, listing, identifiers |
| GET | /api/filings/?company=34794 | Paginated list of all filings (filterable by type, date, language) |
| GET | /api/filings/{id}/ | Single filing — metadata, document URL, processing status |
| GET | /api/filings/{id}/markdown/ | Filing content as Markdown (PDF → text/tables/figures) |
| GET | /api/isins/?company=34794 | All ISINs registered to this company |
| GET | /api/filing-types/ | Reference: every filing-type code + category |
cURL
$ curl https://api.financialreports.eu/api/filings/?company=34794 \ -H "x-api-key: $FR_API_KEY" \ -H "Accept: application/json"
Python
import requests r = requests.get( "https://api.financialreports.eu/api/filings/", params={"company": 34794}, headers={"x-api-key": API_KEY}, ) filings = r.json()["results"]
MCP server
// MCP server URL https://mcp.financialfilings.com/mcp // Once connected, the LLM can query this company directly: "Pull the latest 5 filings for Marathon Bancorp, Inc. /MD/ (id: 34794)"
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