Marathon Bancorp, Inc. /MD/ SEC filings MBBC
Marathon Bancorp, Inc. /MD/ has 232 filings in SEC EDGAR's recent list, going back to Dec 11, 2020. Its latest annual report, Form ARS, was filed on Oct 13, 2026 for the period ended Jun 30, 2026. The latest quarterly report (Form 10-Q) was filed on May 13, 2026, covering the quarter ended Mar 31, 2026. The most recent current report (Form 8-K) was filed on Oct 1, 2026 (officer or director change). The company's fiscal year ends on June 30.
| Form | Description | Filed | Period |
|---|---|---|---|
| 11-K | Employee savings plan report | Jun 29, 2026 | Dec 31, 2025 |
| 11-K | Employee savings plan report | Jun 23, 2025 | Dec 31, 2024 |
| CERT | Filing | Apr 21, 2025 | — |
| 8-A12B | Filing | Apr 21, 2025 | — |
| EFFECT | Filing | Feb 11, 2025 | — |
| CORRESP | Letter to the SEC | Feb 7, 2025 | — |
| CORRESP | Letter to the SEC | Feb 7, 2025 | — |
| UPLOAD | Letter from the SEC | Dec 19, 2024 | — |
| 425 | Filing | Dec 12, 2024 | — |
| 11-K | Employee savings plan report | Jun 18, 2024 | Dec 31, 2023 |
| 11-K | Employee savings plan report | Jun 28, 2023 | Dec 31, 2022 |
| 11-K | Employee savings plan report | Jun 28, 2022 | Dec 31, 2021 |
| 8-A12G | Marathon bancorp, inc. | Apr 14, 2021 | — |
| EFFECT | Filing | Feb 11, 2021 | — |
| CORRESP | Letter to the SEC | Feb 9, 2021 | — |
| CORRESP | Letter to the SEC | Feb 9, 2021 | — |
| CORRESP | Letter to the SEC | Jan 28, 2021 | — |
| UPLOAD | Letter from the SEC | Jan 7, 2021 | — |
Showing 18 filings. Main filings leave out insider and ownership forms such as Form 4; choose a type above to see them. Each form opens on SEC.gov. Older filings are on SEC EDGAR.
New to this? Read What Are SEC Filings? 10-K, 10-Q, 8-K and Other Forms Explained.
Company profile
- Industry
- Savings Institutions, Not Federally Chartered (SIC 6036)
- Listed as
- MBBC (Nasdaq)
- Fiscal year ends
- June 30
- Headquarters
- Wausau, WI
- SEC filer status
- Non-accelerated filer, Smaller reporting company
- SEC CIK
- 1835385
Other Savings Institutions, Not Federally Chartered companies
- Flagstar Bank, National Association FLG
- Beacon Financial Corp BBT
- Heritage Financial Corp /WA/ HFWA
- NB Bancorp, Inc. NBBK
- Southern Missouri Bancorp, Inc. SMBC
- Third Coast Bancshares, Inc. TCBX
- Greene County Bancorp Inc GCBC
- Home Bancorp, Inc. HBCP
All 40 Savings Institutions, Not Federally Chartered companies
Source: SEC EDGAR filings. This is company-reported data, not investment advice.