Marathon Bancorp, Inc. /MD/ SEC filings

Filings

Every filing, newest first. MAJOR and NOTABLE filings lead the app's feed; ROUTINE ones are kept here.

1. ROUTINEARSMarathon Bancorp, Inc. /MD/MBBC5d

   Marathon Bancorp files ARS on 2026-10-13

   • Form ARS filed by Marathon Bancorp, Inc.
   • Date of filing: 2026-10-13
   • Document includes financial data and disclosures.
2. ROUTINEDEF 14AMarathon Bancorp, Inc. /MD/MBBC5d

   Marathon Bancorp to hold 2026 annual meeting

   • Annual meeting on Nov 17, 2026 at 9:00 a.m. local time
   • Election of two directors
   • Ratification of Bonadio & Co., LLP as accounting firm
3. ROUTINE8-KMarathon Bancorp, Inc. /MD/MBBCOct 1

   Current report

4. ROUTINE4Marathon Bancorp, Inc. /MD/MBBCSep 18

   Nora Spatz, insider filing for MBBC

   Nora Spatz, reporting

5. NOTABLE10-KMarathon Bancorp, Inc. /MD/MBBCSep 16

   Annual report

6. ROUTINESCHEDULE 13G/AMarathon Bancorp, Inc. /MD/MBBCJul 1

   2 13G filings

   Ownership stake disclosure by Marathon Bank 401(k) Plan Trust (amended)

   Show all 2

   • SCHEDULE 13G/AOwnership stake disclosure (amended)Jul 1
   • SCHEDULE 13GOwnership stake disclosureJul 1

   Marathon Bank 401(k) Plan Trust, filed by

7. ROUTINE4Marathon Bancorp, Inc. /MD/MBBCJun 30

   5 insider filings

   Terry Cornish, insider filing for MBBC

   Show all 5

   • 4Insider filing for MBBCJun 30
   • 4Insider filing for MBBCJun 30
   • 4Insider filing for MBBCJun 30
   • 4Insider filing for MBBCJun 30
   • 4Insider filing for MBBCJun 30

   Terry Cornish, reporting

8. ROUTINE11-KMarathon Bancorp, Inc. /MD/MBBCJun 29

   Employee plan annual report

9. ROUTINE4Marathon Bancorp, Inc. /MD/MBBCJun 17

   Nicholas W Zillges, insider filing for MBBC

   Nicholas W Zillges, reporting

10. ROUTINE4Marathon Bancorp, Inc. /MD/MBBCJun 16

    8 insider filings

    Ann M Werth, insider filing for MBBC

    Show all 8

    • 4Insider filing for MBBCJun 16
    • 4Insider filing for MBBCJun 16
    • 4Insider filing for MBBCJun 16
    • 4Insider filing for MBBCJun 16
    • 4Insider filing for MBBCJun 16
    • 4Insider filing for MBBCJun 16
    • 4Insider filing for MBBCJun 16
    • 4Insider filing for MBBCJun 16

    Ann M Werth, reporting

11. ROUTINE4Marathon Bancorp, Inc. /MD/MBBCJun 11

    4 insider filings

    Terry Cornish, insider filing for MBBC

    Show all 4

    • 4Insider filing for MBBCJun 11
    • 4Insider filing for MBBCJun 11
    • 4Insider filing for MBBCJun 11
    • 4Insider filing for MBBCJun 11

    Terry Cornish, reporting

12. ROUTINE4Marathon Bancorp, Inc. /MD/MBBCJun 5

    5 insider filings

    Amy Zientara, insider filing for MBBC

    Show all 5

    • 4Insider filing for MBBCJun 5
    • 4Insider filing for MBBCJun 5
    • 4Insider filing for MBBCJun 5
    • 4Insider filing for MBBCJun 5
    • 4Insider filing for MBBCJun 5

    Amy Zientara, reporting

13. ROUTINE8-KMarathon Bancorp, Inc. /MD/MBBCMay 28

    Current report

14. ROUTINE4Marathon Bancorp, Inc. /MD/MBBCMay 19

    4 insider filings

    Terry Cornish, insider filing for MBBC

    Show all 4

    • 4Insider filing for MBBCMay 19
    • 4Insider filing for MBBCMay 19
    • 4Insider filing for MBBCMay 19
    • 4Insider filing for MBBCMay 19

    Terry Cornish, reporting

15. NOTABLE10-QMarathon Bancorp, Inc. /MD/MBBCMay 13

    Quarterly report

16. ROUTINE4Marathon Bancorp, Inc. /MD/MBBCMay 6

    Ann M Werth, insider filing for MBBC

    Ann M Werth, reporting

17. ROUTINE8-KMarathon Bancorp, Inc. /MD/MBBCApr 24

    Current report

18. ROUTINEDEF 14AMarathon Bancorp, Inc. /MD/MBBCApr 24

    Proxy statement

19. ROUTINE4Marathon Bancorp, Inc. /MD/MBBCMar 20

    Thomas L Grimm, insider filing for MBBC

    Thomas L Grimm, reporting

20. ROUTINE4Marathon Bancorp, Inc. /MD/MBBCMar 18

    Nora Spatz, insider filing for MBBC

    Nora Spatz, reporting

21. ROUTINE4Marathon Bancorp, Inc. /MD/MBBCFeb 24

    Nicholas W Zillges, insider filing for MBBC

    Nicholas W Zillges, reporting

22. ROUTINESCHEDULE 13GMarathon Bancorp, Inc. /MD/MBBCFeb 17

    Ownership stake disclosure by ALLIANCEBERNSTEIN L.P.

    ALLIANCEBERNSTEIN L.P., filed by

23. NOTABLE10-QMarathon Bancorp, Inc. /MD/MBBCFeb 11

    Quarterly report

24. ROUTINE4Marathon Bancorp, Inc. /MD/MBBCDec 3, 2025

    3 insider filings

    Michelle Knopf, insider filing for MBBC

    Show all 3

    • 4Insider filing for MBBCDec 3, 2025
    • 4Insider filing for MBBCDec 3, 2025
    • 4Insider filing for MBBCDec 3, 2025

    Michelle Knopf, reporting

25. ROUTINE4Marathon Bancorp, Inc. /MD/MBBCNov 28, 2025

    Nicholas W Zillges, insider filing for MBBC

    Nicholas W Zillges, reporting

26. ROUTINE4Marathon Bancorp, Inc. /MD/MBBCNov 14, 2025

    Nicholas W Zillges, insider filing for MBBC

    Nicholas W Zillges, reporting

Older filings on EDGAR