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 |
|---|---|---|---|
| ARS | Annual report to shareholders | Oct 13, 2026 | Jun 30, 2026 |
| DEF 14A | Proxy statement | Oct 13, 2026 | Nov 17, 2026 |
| 8-K |
Current report
Officer or director change
|
Oct 1, 2026 | Sep 30, 2026 |
| 10-K | Annual report | Sep 16, 2026 | Jun 30, 2026 |
| 11-K | Employee savings plan report | Jun 29, 2026 | Dec 31, 2025 |
| S-8 | Employee stock plan registration | Jun 9, 2026 | — |
| 8-K |
Current report
Officer or director change, Shareholder vote results
|
May 28, 2026 | May 28, 2026 |
| 10-Q | Quarterly report | May 13, 2026 | Mar 31, 2026 |
| 8-K |
Current report
Other events
|
Apr 24, 2026 | Apr 24, 2026 |
| DEF 14A | Proxy statement | Apr 24, 2026 | May 28, 2026 |
| 10-Q | Quarterly report | Feb 11, 2026 | Dec 31, 2025 |
| 8-K |
Current report
Shareholder vote results
|
Nov 18, 2025 | Nov 18, 2025 |
| 10-Q | Quarterly report | Nov 12, 2025 | Sep 30, 2025 |
| ARS | Annual report to shareholders | Oct 15, 2025 | Jun 30, 2025 |
| DEF 14A | Proxy statement | Oct 15, 2025 | Nov 18, 2025 |
| S-8 | Employee stock plan registration | Sep 30, 2025 | — |
| 10-K | Annual report | Sep 26, 2025 | Jun 30, 2025 |
| 11-K | Employee savings plan report | Jun 23, 2025 | Dec 31, 2024 |
| 10-Q | Quarterly report | May 14, 2025 | Mar 31, 2025 |
| CERT | Filing | Apr 21, 2025 | — |
| 8-A12B | Filing | Apr 21, 2025 | — |
| 8-K |
Current report
Other events
|
Apr 21, 2025 | Apr 21, 2025 |
| 8-K |
Current report
Other events
|
Apr 16, 2025 | Apr 16, 2025 |
| 8-K |
Current report
Shareholder vote results, Other events
|
Mar 31, 2025 | Mar 31, 2025 |
| 8-K |
Current report
Other events
|
Mar 24, 2025 | Mar 24, 2025 |
| 424B3 | Prospectus | Feb 21, 2025 | — |
| 424B3 | Prospectus | Feb 21, 2025 | — |
| 424B3 | Prospectus | Feb 21, 2025 | — |
| 8-K |
Current report
Other events
|
Feb 20, 2025 | Feb 20, 2025 |
| 8-K |
Current report
Material agreement
|
Feb 18, 2025 | Feb 11, 2025 |
| 10-Q | Quarterly report | Feb 13, 2025 | Dec 31, 2024 |
| EFFECT | Filing | Feb 11, 2025 | — |
| CORRESP | Letter to the SEC | Feb 7, 2025 | — |
| CORRESP | Letter to the SEC | Feb 7, 2025 | — |
| S-1/A | Amended registration statement | Feb 6, 2025 | — |
| UPLOAD | Letter from the SEC | Dec 19, 2024 | — |
| S-1 | Registration statement | Dec 13, 2024 | — |
| 425 | Filing | Dec 12, 2024 | — |
| 8-K |
Current report
Other events
|
Dec 12, 2024 | Dec 10, 2024 |
| 8-K |
Current report
Shareholder vote results
|
Nov 19, 2024 | Nov 19, 2024 |
| 10-Q | Quarterly report | Nov 13, 2024 | Sep 30, 2024 |
| ARS | Annual report to shareholders | Oct 11, 2024 | Jun 30, 2024 |
| DEF 14A | Proxy statement | Oct 11, 2024 | Nov 19, 2024 |
| 10-K | Annual report | Sep 26, 2024 | Jun 30, 2024 |
| 11-K | Employee savings plan report | Jun 18, 2024 | Dec 31, 2023 |
| 10-Q | Quarterly report | May 13, 2024 | Mar 31, 2024 |
| 10-Q | Quarterly report | Feb 14, 2024 | Dec 31, 2023 |
| 8-K |
Current report
Other events
|
Dec 26, 2023 | Dec 22, 2023 |
| 8-K |
Current report
Shareholder vote results
|
Nov 21, 2023 | Nov 21, 2023 |
| 10-Q | Quarterly report | Nov 14, 2023 | Sep 30, 2023 |
| ARS | Annual report to shareholders | Oct 17, 2023 | Jun 30, 2023 |
| DEF 14A | Proxy statement | Oct 17, 2023 | Nov 21, 2023 |
| 10-K | Annual report | Sep 20, 2023 | Jun 30, 2023 |
| 8-K |
Current report
Restatement
|
Sep 20, 2023 | Sep 19, 2023 |
| 11-K | Employee savings plan report | Jun 28, 2023 | Dec 31, 2022 |
| 10-Q | Quarterly report | May 12, 2023 | Mar 31, 2023 |
| 8-K |
Current report
Other events
|
May 10, 2023 | May 10, 2023 |
| 10-Q | Quarterly report | Feb 14, 2023 | Dec 31, 2022 |
| 8-K |
Current report
Shareholder vote results
|
Nov 22, 2022 | Nov 22, 2022 |
| 8-K |
Current report
Other events
|
Nov 16, 2022 | Nov 16, 2022 |
| 10-Q | Quarterly report | Nov 14, 2022 | Sep 30, 2022 |
| DEF 14A | Proxy statement | Oct 17, 2022 | Nov 22, 2022 |
| 10-K | Annual report | Sep 28, 2022 | Jun 30, 2022 |
| 8-K |
Current report
Officer or director change
|
Jun 30, 2022 | Jun 28, 2022 |
| 11-K | Employee savings plan report | Jun 28, 2022 | Dec 31, 2021 |
| S-8 | Employee stock plan registration | Jun 28, 2022 | — |
| 8-K |
Current report
Officer or director change, Shareholder vote results
|
May 24, 2022 | May 24, 2022 |
| 10-Q | Quarterly report | May 13, 2022 | Mar 31, 2022 |
| DEF 14A | Proxy statement | Apr 18, 2022 | May 24, 2022 |
| 10-Q | Quarterly report | Feb 11, 2022 | Dec 31, 2021 |
| 8-K |
Current report
Shareholder vote results
|
Nov 23, 2021 | Nov 23, 2021 |
| 10-Q | Quarterly report | Nov 12, 2021 | Sep 30, 2021 |
| DEF 14A | Proxy statement | Oct 22, 2021 | Nov 23, 2021 |
| 10-K | Annual report | Sep 28, 2021 | Jun 30, 2021 |
| S-8 | Employee stock plan registration | Jun 11, 2021 | — |
| 10-Q | Quarterly report | May 13, 2021 | Mar 31, 2021 |
| 8-K |
Current report
Officer or director change
|
Apr 19, 2021 | Apr 14, 2021 |
| 8-K |
Current report
Other events
|
Apr 16, 2021 | Apr 16, 2021 |
| 8-K |
Current report
Other events
|
Apr 15, 2021 | Apr 14, 2021 |
| 8-A12G | Marathon bancorp, inc. | Apr 14, 2021 | — |
| 8-K |
Current report
Other events
|
Apr 9, 2021 | Apr 9, 2021 |
| 8-K |
Current report
Other events
|
Mar 30, 2021 | Mar 30, 2021 |
| 10-Q | Quarterly report | Mar 26, 2021 | Dec 31, 2020 |
| 8-K |
Current report
Other events
|
Mar 3, 2021 | Mar 3, 2021 |
| 424B3 | Prospectus | Feb 22, 2021 | — |
| 424B3 | Prospectus | Feb 22, 2021 | — |
| 8-K |
Current report
Material agreement
|
Feb 17, 2021 | Feb 11, 2021 |
| EFFECT | Filing | Feb 11, 2021 | — |
| CORRESP | Letter to the SEC | Feb 9, 2021 | — |
| CORRESP | Letter to the SEC | Feb 9, 2021 | — |
| S-1/A | Amended registration statement | Jan 29, 2021 | — |
| CORRESP | Letter to the SEC | Jan 28, 2021 | — |
| UPLOAD | Letter from the SEC | Jan 7, 2021 | — |
| S-1 | Registration statement | Dec 11, 2020 | — |
Showing 94 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.