A business in context

MBBC research notebook

Read the disclosures. Follow the relationships. Keep the dates in view.

Research JSON

Filing timeline

Download filings CSV

SEC submissions · retrieved 2026-10-20 · 8029 issuers; up to 32 recent company reports and 8 ownership-change filings per issuer

  1. DEF 14A · Proxy statement

    Report date 2026-11-17 · 0001104659-26-115479

  2. 8-K · Current report

    Report date 2026-09-30 · 0000943374-26-000436 · Items 5.02

  3. 4 · Ownership change

    Report date 2026-09-18 · 0001437749-26-030752

  4. 10-K · Annual report

    Report date 2026-06-30 · 0001104659-26-108076

  5. 4 · Ownership change

    Report date 2026-06-28 · 0001437749-26-022178

  6. 4 · Ownership change

    Report date 2026-06-28 · 0001437749-26-022176

  7. 4 · Ownership change

    Report date 2026-06-28 · 0001437749-26-022173

  8. 4 · Ownership change

    Report date 2026-06-28 · 0001437749-26-022171

  9. 4 · Ownership change

    Report date 2026-06-28 · 0001437749-26-022169

  10. 4 · Ownership change

    Report date 2026-06-16 · 0001437749-26-020909

  11. 4 · Ownership change

    Report date 2026-06-15 · 0001437749-26-020823

  12. 8-K · Current report

    Report date 2026-05-28 · 0000943374-26-000217 · Items 5.02,5.07,9.01

  13. 10-Q · Quarterly report

    Report date 2026-03-31 · 0001104659-26-059789

  14. DEF 14A · Proxy statement

    Report date 2026-05-28 · 0001104659-26-048151

  15. 8-K · Current report

    Report date 2026-04-24 · 0000943374-26-000167 · Items 8.01,9.01

  16. 10-Q · Quarterly report

    Report date 2025-12-31 · 0001104659-26-013033

  17. 8-K · Current report

    Report date 2025-11-18 · 0000943374-25-000479 · Items 5.07

  18. 10-Q · Quarterly report

    Report date 2025-09-30 · 0001104659-25-109769

  19. DEF 14A · Proxy statement

    Report date 2025-11-18 · 0001104659-25-099556

  20. 10-K · Annual report

    Report date 2025-06-30 · 0001104659-25-093884

  21. 10-Q · Quarterly report

    Report date 2025-03-31 · 0001558370-25-007658

  22. 8-K · Current report

    Report date 2025-04-21 · 0000943374-25-000161 · Items 8.01,9.01

  23. 8-K · Current report

    Report date 2025-04-16 · 0000943374-25-000155 · Items 8.01,9.01

  24. 8-K · Current report

    Report date 2025-03-31 · 0000943374-25-000141 · Items 5.07,8.01,9.01

  25. 8-K · Current report

    Report date 2025-03-24 · 0000943374-25-000139 · Items 8.01,9.01

  26. 8-K · Current report

    Report date 2025-02-20 · 0000943374-25-000109 · Items 8.01,9.01

  27. 8-K · Current report

    Report date 2025-02-11 · 0001104659-25-014749 · Items 1.01,9.01

  28. 10-Q · Quarterly report

    Report date 2024-12-31 · 0001558370-25-000901

  29. 8-K · Current report

    Report date 2024-12-10 · 0001104659-24-128042 · Items 8.01,9.01

  30. 8-K · Current report

    Report date 2024-11-19 · 0000943374-24-000466 · Items 5.07

  31. 10-Q · Quarterly report

    Report date 2024-09-30 · 0001558370-24-015434

  32. DEF 14A · Proxy statement

    Report date 2024-11-19 · 0001558370-24-013253

  33. 10-K · Annual report

    Report date 2024-06-30 · 0001558370-24-013026

  34. 10-Q · Quarterly report

    Report date 2024-03-31 · 0001558370-24-007973

  35. 10-Q · Quarterly report

    Report date 2023-12-31 · 0001558370-24-001113

  36. 8-K · Current report

    Report date 2023-12-22 · 0000943374-23-000500 · Items 8.01,9.01

  37. 8-K · Current report

    Report date 2023-11-21 · 0000943374-23-000450 · Items 5.07

  38. 10-Q · Quarterly report

    Report date 2023-09-30 · 0001558370-23-019040

  39. DEF 14A · Proxy statement

    Report date 2023-11-21 · 0001558370-23-016478

  40. 10-K · Annual report

    Report date 2023-06-30 · 0001558370-23-015909

Reported insider transactions

Download transactions CSV

SEC insider transactions · retrieved 2026-10-15 · 2026 Q3: filings in this completed quarter; not a live transaction feed

Purchases and sales include open-market or private transactions. Grants, exercises and tax withholding are shown separately. Amendments and joint reports can overlap; rows are not a net-buying score. Prices retain the filing's units; consult its footnotes.

Transaction rows by code · counts, not monetary totals
Purchase: 0 transaction rows0PSale: 0 transaction rows0SGrant / award: 0 transaction rows0AExercise / conversion: 4 transaction rows4MTax / exercise payment: 0 transaction rows0FGift: 0 transaction rows0G
P · PurchaseS · SaleA · Grant / awardM · Exercise / conversionF · Tax / exercise paymentG · Gift

4 matching transaction rows.

Transaction / filedReporting ownerTypeSecuritySharesReported price
2026-09-18
2026-09-18
Spatz NoraM · Exercise / conversion
Acquired
Common Stock962.06.48
2026-09-18
2026-09-18
Spatz NoraM · Exercise / conversion
Acquired
Common Stock1201.08.13
2026-09-18
2026-09-18
Spatz NoraM · Exercise / conversion
Disposed
Stock Options
Derivative security
962.00.0
2026-09-18
2026-09-18
Spatz NoraM · Exercise / conversion
Disposed
Stock Options
Derivative security
1201.00.0

Identity & relationships

Wikidata structured data · retrieved 2026-10-15 · 1663 unambiguous CIK-linked entities; coverage is incomplete

These are sourced identity and relationship claims, with incomplete coverage. Headquarters locations do not describe sales, assets or operating exposure.

SEC issuer · 0001835385Marathon Bancorp, Inc. /MD/

No parent relationship is available in this import; this is not proof of independence.

No verified LEI join available.

GLEIF legal entity reference data · retrieved 2026-10-15 · 1199 checked identities; 0 unavailable records

Search names and former names

    Revenue in constant purchasing power

    USD revenue expressed in 2026-09 consumer-price dollars. Each annual period uses a CPI-U average weighted by the days in its actual reporting interval. This is a purchasing-power comparison, not a company-specific price or volume measure.

    No USD annual revenue periods with complete CPI coverage are available. Non-USD statements are not converted with U.S. CPI.

    Bureau of Labor Statistics · retrieved 2026-10-20 · 9 selected series; gaps remain missing

    Explore the CPI history ↗