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KOSS research notebook

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SEC submissions · retrieved 2026-09-07 · 8010 issuers; up to 32 recent company reports and 8 ownership-change filings per issuer

  1. DEF 14A · Proxy statement

    Report date 2026-08-27 · 0000056701-26-000036

  2. 10-K · Annual report

    Report date 2026-06-30 · 0000056701-26-000034

  3. 8-K · Current report

    Report date 2026-08-27 · 0000056701-26-000032 · Items 2.02,9.01

  4. 4 · Ownership change

    Report date 2026-05-06 · 0001193125-26-214741

  5. 4 · Ownership change

    Report date 2026-05-06 · 0001193125-26-214740

  6. 10-Q · Quarterly report

    Report date 2026-03-31 · 0000056701-26-000017

  7. 8-K · Current report

    Report date 2026-05-07 · 0000056701-26-000015 · Items 2.02,9.01

  8. 4 · Ownership change

    Report date 2026-02-17 · 0001193125-26-054822

  9. 10-Q · Quarterly report

    Report date 2025-12-31 · 0000056701-26-000008

  10. 8-K · Current report

    Report date 2026-01-29 · 0000056701-26-000006 · Items 2.02,9.01

  11. 4 · Ownership change

    Report date 2025-12-02 · 0001193125-25-308136

  12. 10-Q · Quarterly report

    Report date 2025-09-30 · 0000056701-25-000059

  13. 8-K · Current report

    Report date 2025-10-30 · 0000056701-25-000057 · Items 2.02,9.01

  14. 8-K · Current report

    Report date 2025-10-15 · 0000056701-25-000052 · Items 5.07

  15. DEF 14A · Proxy statement

    Report date 2025-08-28 · 0000056701-25-000046

  16. 10-K · Annual report

    Report date 2025-06-30 · 0000056701-25-000044

  17. 8-K · Current report

    Report date 2025-08-28 · 0000056701-25-000042 · Items 2.02,9.01

  18. 4 · Ownership change

    Report date 2025-06-10 · 0000950170-25-087506

  19. 4 · Ownership change

    Report date 2025-06-12 · 0000950170-25-087503

  20. 10-Q · Quarterly report

    Report date 2025-03-31 · 0000056701-25-000017

  21. 8-K · Current report

    Report date 2025-05-06 · 0000898432-25-000322 · Items 5.02

  22. 8-K · Current report

    Report date 2025-05-08 · 0000056701-25-000015 · Items 2.02,9.01

  23. 10-Q · Quarterly report

    Report date 2024-12-31 · 0000056701-25-000008

  24. 8-K · Current report

    Report date 2025-01-30 · 0000056701-25-000006 · Items 2.02,9.01

  25. 4 · Ownership change

    Report date 2024-12-12 · 0000950170-24-136638

  26. 10-Q · Quarterly report

    Report date 2024-09-30 · 0000056701-24-000043

  27. 8-K · Current report

    Report date 2024-10-31 · 0000056701-24-000041 · Items 2.02,9.01

  28. 8-K · Current report

    Report date 2024-10-16 · 0000056701-24-000036 · Items 5.07

  29. DEF 14A · Proxy statement

    Report date 2024-08-29 · 0000056701-24-000030

  30. 10-K · Annual report

    Report date 2024-06-30 · 0000056701-24-000028

  31. 8-K · Current report

    Report date 2024-08-29 · 0000056701-24-000026 · Items 2.02,9.01

  32. 4 · Ownership change

    Report date 2024-05-30 · 0000950170-24-067352

  33. 10-Q · Quarterly report

    Report date 2024-03-31 · 0000056701-24-000014

  34. 8-K · Current report

    Report date 2024-05-09 · 0000056701-24-000012 · Items 2.02,9.01

  35. 10-Q · Quarterly report

    Report date 2023-12-31 · 0000056701-24-000008

  36. 8-K · Current report

    Report date 2024-02-01 · 0000056701-24-000006 · Items 2.02,9.01

  37. 10-Q · Quarterly report

    Report date 2023-09-30 · 0000056701-23-000044

  38. 8-K · Current report

    Report date 2023-10-26 · 0000056701-23-000042 · Items 2.02,9.01

  39. 8-K/A · Current report

    Report date 2023-10-18 · 0000056701-23-000037 · Items 5.02,5.07,9.01

  40. 8-K · Current report

    Report date 2023-10-18 · 0000056701-23-000034 · Items 9.01

Reported insider transactions

Download transactions CSV

SEC insider transactions · retrieved 2026-09-07 · 2026 Q2: 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: 2 transaction rows2AExercise / conversion: 0 transaction rows0MTax / exercise payment: 0 transaction rows0FGift: 0 transaction rows0G
P · PurchaseS · SaleA · Grant / awardM · Exercise / conversionF · Tax / exercise paymentG · Gift

2 matching transaction rows.

Transaction / filedReporting ownerTypeSecuritySharesReported price
2026-05-06
2026-05-08
Schulte Kim M.A · Grant / award
Acquired
Stock Options (Right to Buy)
Derivative security
50000.00.0
2026-05-06
2026-05-08
Koss Michael J JrA · Grant / award
Acquired
Stock Options (Right to Buy)
Derivative security
100000.00.0

Identity & relationships

Wikidata structured data · retrieved 2026-09-07 · 1611 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 · 0000056701KOSS CORP

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 2026-09-07 · 1177 checked identities; 0 unavailable records

Search names and former names

View Wikidata identity and references ↗

  • Koss Corporation · alias · wikidata
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Revenue in constant purchasing power

USD revenue expressed in 2026-07 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.

Year endedReported USD revenueCPI-adjusted USD revenue
2025-06-30$12.62M$13.27M
2024-06-30$12.27M$13.23M
2023-06-30$13.10M$14.60M
2022-06-30$17.71M$20.97M
2021-06-30$19.55M$24.80M
2020-06-30$18.31M$23.77M
2019-06-30$21.84M$28.80M
2018-06-30$23.52M$31.66M

Bureau of Labor Statistics · retrieved 2026-09-07 · 9 selected series; gaps remain missing

Explore the CPI history ↗