Company facts
- Headquarters
- Wausau, Wisconsin
- Most recent report
- 10-K, filed Sep 16, 2026
- Filings on record
- 229 filings
- On EDGAR
- CIK 1835385
- Fiscal year ends
- June
- Filer status
- Non-accelerated filer, Smaller reporting company
Financials 8 of 23
News 8 of 27
Prospectuses and Registrations 8 of 13
- S-8 Registration statement for an employee plan Jun 9, 2026
- S-8 Registration statement for an employee plan Sep 30, 2025
- 424B3 Prospectus supplement for an offering Feb 21, 2025
- 424B3 Prospectus supplement for an offering Feb 21, 2025
- 424B3 Prospectus supplement for an offering Feb 21, 2025
- S-1/A Registration statement for an offering, amended Feb 6, 2025
- S-1 Registration statement for an offering Dec 13, 2024
- S-8 Registration statement for an employee plan Jun 28, 2022
Proxies 7
- DEF 14A Proxy statement for a shareholder vote Apr 24, 2026
- DEF 14A Proxy statement for a shareholder vote Oct 15, 2025
- DEF 14A Proxy statement for a shareholder vote Oct 11, 2024
- DEF 14A Proxy statement for a shareholder vote Oct 17, 2023
- DEF 14A Proxy statement for a shareholder vote Oct 17, 2022
- DEF 14A Proxy statement for a shareholder vote Apr 18, 2022
- DEF 14A Proxy statement for a shareholder vote Oct 22, 2021
Ownership 8 of 138
- 4 Insider reported a trade Sep 18, 2026
- SCHEDULE 13G/A Large holder reported a passive stake, amended Jul 1, 2026
- SCHEDULE 13G Large holder reported a passive stake Jul 1, 2026
- 4 Insider reported a trade Jun 30, 2026
- 4 Insider reported a trade Jun 30, 2026
- 4 Insider reported a trade Jun 30, 2026
- 4 Insider reported a trade Jun 30, 2026
- 4 Insider reported a trade Jun 30, 2026
Other 8 of 21
- 11-K Employee stock plan report Jun 29, 2026
- ARS Annual report sent to shareholders Oct 15, 2025
- 11-K Employee stock plan report Jun 23, 2025
- CERT Exchange certified a listing Apr 21, 2025
- 8-A12B Registration of a security for exchange listing Apr 21, 2025
- EFFECT Notice that a registration became effective Feb 11, 2025
- CORRESP Reply to SEC staff Feb 7, 2025
- CORRESP Reply to SEC staff Feb 7, 2025
Everything here comes from Marathon Bancorp, Inc.'s own filings on SEC EDGAR. The filing list is rechecked every hour.