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QMCO research notebook

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Filing timeline

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

  1. 8-K · Current report

    Report date 2026-10-09 · 0001628280-26-065547 · Items 5.02,8.01

  2. 4 · Ownership change

    Report date 2026-10-01 · 0001628280-26-065076

  3. 4 · Ownership change

    Report date 2026-10-01 · 0001628280-26-065074

  4. 4 · Ownership change

    Report date 2026-10-01 · 0001628280-26-065072

  5. 4 · Ownership change

    Report date 2026-10-01 · 0001628280-26-065068

  6. 4 · Ownership change

    Report date 2026-10-01 · 0001628280-26-065061

  7. 4 · Ownership change

    Report date 2026-10-01 · 0001628280-26-065025

  8. 4 · Ownership change

    Report date 2026-10-01 · 0001628280-26-065000

  9. 4 · Ownership change

    Report date 2026-10-01 · 0001628280-26-064989

  10. 8-K · Current report

    Report date 2026-09-28 · 0001628280-26-063661 · Items 5.02,8.01,9.01

  11. 8-K · Current report

    Report date 2026-09-15 · 0001628280-26-062548 · Items 5.07

  12. 8-K · Current report

    Report date 2026-09-01 · 0001628280-26-059879 · Items 5.02,8.01,9.01

  13. 8-K · Current report

    Report date 2026-08-11 · 0001628280-26-057180 · Items 5.02

  14. 10-Q · Quarterly report

    Report date 2026-06-30 · 0001628280-26-055417

  15. 8-K · Current report

    Report date 2026-08-10 · 0001628280-26-055272 · Items 2.02,9.01

  16. DEF 14A · Proxy statement

    Report date 2026-09-15 · 0001140361-26-030043

  17. 10-K · Annual report

    Report date 2026-03-31 · 0001628280-26-045602

  18. 8-K · Current report

    Report date 2026-06-25 · 0001628280-26-045529 · Items 2.02,9.01

  19. 8-K · Current report

    Report date 2026-06-04 · 0001193125-26-259525 · Items 1.02,5.08,8.01

  20. 8-K · Current report

    Report date 2026-06-01 · 0001193125-26-252718 · Items 1.01,2.02,2.03,3.02,8.01,9.01

  21. 10-Q · Quarterly report

    Report date 2025-12-31 · 0001628280-26-008558

  22. 8-K · Current report

    Report date 2026-02-17 · 0001628280-26-008553 · Items 2.02,9.01

  23. 8-K · Current report

    Report date 2026-02-02 · 0001628280-26-004461 · Items 5.02,8.01,9.01

  24. 8-K · Current report

    Report date 2026-01-15 · 0001628280-26-002121 · Items 2.02,9.01

  25. 8-K · Current report

    Report date 2025-12-16 · 0000709283-25-000091 · Items 1.01,2.03,3.02,5.07,9.01

  26. 10-Q · Quarterly report

    Report date 2025-09-30 · 0000709283-25-000085

  27. 8-K · Current report

    Report date 2025-11-13 · 0000709283-25-000083 · Items 2.02,9.01

  28. DEF 14A · Proxy statement

    Report date 2025-12-16 · 0001539497-25-002829

  29. 8-K · Current report

    Report date 2025-10-28 · 0000709283-25-000072 · Items 2.02,9.01

  30. 8-K · Current report

    Report date 2025-10-20 · 0000709283-25-000063 · Items 5.08,8.01

  31. 8-K · Current report

    Report date 2025-09-30 · 0000709283-25-000061 · Items 4.01

  32. 8-K · Current report

    Report date 2025-09-23 · 0001193125-25-212374 · Items 1.01,2.03,3.02,8.01,9.01

  33. 10-Q/A · Quarterly report

    Report date 2025-06-30 · 0000709283-25-000058

  34. 8-K · Current report

    Report date 2025-09-12 · 0000709283-25-000047 · Items 8.01

  35. 10-Q · Quarterly report

    Report date 2025-06-30 · 0000709283-25-000045

  36. 8-K · Current report

    Report date 2025-09-10 · 0000709283-25-000038 · Items 2.02,9.01

  37. 8-K · Current report

    Report date 2025-08-27 · 0000709283-25-000033 · Items 5.02,9.01

  38. 8-K · Current report

    Report date 2025-08-21 · 0000709283-25-000029 · Items 3.01,8.01,9.01

  39. 10-K · Annual report

    Report date 2025-03-31 · 0000709283-25-000027

  40. 8-K · Current report

    Report date 2025-08-12 · 0000709283-25-000023 · Items 1.02,2.02,5.02,8.01

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: 3 transaction rows3SGrant / award: 0 transaction rows0AExercise / conversion: 0 transaction rows0MTax / exercise payment: 0 transaction rows0FGift: 0 transaction rows0G
P · PurchaseS · SaleA · Grant / awardM · Exercise / conversionF · Tax / exercise paymentG · Gift

3 matching transaction rows.

Transaction / filedReporting ownerTypeSecuritySharesReported price
2026-08-03
2026-08-05
Craythorne AnthonyS · Sale
Disposed
Common Stock1478.010.73
2026-07-02
2026-07-07
Nash Laura A.S · Sale
Disposed
Common Stock260.010.51
2026-07-02
2026-07-07
Meyrath HuguesS · Sale
Disposed
Common Stock6232.010.51

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 · 0000709283QUANTUM CORP /DE/

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.

    Year endedReported USD revenueCPI-adjusted USD revenue
    2025-03-31$274.06M$292.41M
    2024-03-31$311.60M$341.84M
    2023-03-31$422.08M$479.22M
    2022-03-31$383.43M$467.78M
    2021-03-31$349.58M$452.98M
    2020-03-31$402.95M$528.30M
    2019-03-31$402.68M$538.13M
    2018-03-31$437.68M$598.38M

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

    Explore the CPI history ↗