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CIEN research notebook

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

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Filing timeline

Download filings CSV

SEC submissions · retrieved 2026-10-22 · 8029 issuers; up to 32 recent company reports and 8 ownership-change filings per issuer

  1. 4 · Ownership change

    Report date 2026-10-15 · 0001998826-26-000023

  2. 4 · Ownership change

    Report date 2026-10-15 · 0001998460-26-000016

  3. 4 · Ownership change

    Report date 2026-10-15 · 0001444157-26-000028

  4. 4 · Ownership change

    Report date 2026-10-15 · 0001032553-26-000045

  5. 4 · Ownership change

    Report date 2026-10-01 · 0001032553-26-000043

  6. 4 · Ownership change

    Report date 2026-10-01 · 0002080157-26-000015

  7. 4 · Ownership change

    Report date 2026-10-01 · 0001963781-26-000014

  8. 4 · Ownership change

    Report date 2026-10-01 · 0001699193-26-000010

  9. 10-Q · Quarterly report

    Report date 2026-08-01 · 0001628280-26-060361

  10. 8-K · Current report

    Report date 2026-09-03 · 0001628280-26-060245 · Items 2.02,9.01

  11. 8-K · Current report

    Report date 2026-06-08 · 0001193125-26-267607 · Items 1.01,2.03,3.02,8.01,9.01

  12. 8-K · Current report

    Report date 2026-06-08 · 0001193125-26-260665 · Items 8.01,9.01

  13. 10-Q · Quarterly report

    Report date 2026-05-02 · 0001628280-26-040767

  14. 8-K · Current report

    Report date 2026-06-04 · 0001628280-26-040614 · Items 2.02,9.01

  15. 8-K · Current report

    Report date 2026-03-26 · 0001628280-26-022342 · Items 5.07

  16. 10-Q · Quarterly report

    Report date 2026-01-31 · 0001628280-26-015152

  17. 8-K · Current report

    Report date 2026-03-05 · 0001628280-26-015006 · Items 2.02,9.01

  18. DEF 14A · Proxy statement

    Report date 2026-03-26 · 0001193125-26-047977

  19. 10-K · Annual report

    Report date 2025-11-01 · 0001628280-25-056698

  20. 8-K · Current report

    Report date 2025-12-11 · 0001628280-25-056425 · Items 2.02,9.01

  21. 8-K · Current report

    Report date 2025-11-30 · 0001628280-25-055133 · Items 5.02

  22. 8-K · Current report

    Report date 2025-10-07 · 0001628280-25-044494 · Items 8.01

  23. 8-K · Current report

    Report date 2025-09-22 · 0001628280-25-042266 · Items 8.01,9.01

  24. 10-Q · Quarterly report

    Report date 2025-08-02 · 0000936395-25-000041

  25. 8-K · Current report

    Report date 2025-09-04 · 0000936395-25-000037 · Items 2.02,9.01

  26. 8-K · Current report

    Report date 2025-06-18 · 0000936395-25-000029 · Items 5.02,7.01,9.01

  27. 10-Q · Quarterly report

    Report date 2025-05-03 · 0000936395-25-000025

  28. 8-K · Current report

    Report date 2025-06-05 · 0000936395-25-000023 · Items 2.02,9.01

  29. 8-K · Current report

    Report date 2025-03-27 · 0000936395-25-000015 · Items 5.07

  30. 10-Q · Quarterly report

    Report date 2025-02-01 · 0000936395-25-000011

  31. 8-K · Current report

    Report date 2025-03-11 · 0000936395-25-000005 · Items 2.02,9.01

  32. DEF 14A · Proxy statement

    Report date 2025-03-27 · 0000950170-25-019400

  33. 8-K · Current report

    Report date 2025-01-17 · 0001193125-25-009588 · Items 1.01,2.03,9.01

  34. 10-K · Annual report

    Report date 2024-11-02 · 0000936395-24-000044

  35. 8-K · Current report

    Report date 2024-12-12 · 0000936395-24-000037 · Items 2.02,5.02,5.03,7.01,9.01

  36. SC 13G/A · Ownership disclosure

    0000315066-24-002732

  37. 8-K · Current report

    Report date 2024-10-02 · 0000936395-24-000035 · Items 8.01,9.01

  38. 10-Q · Quarterly report

    Report date 2024-07-27 · 0000936395-24-000032

  39. 8-K · Current report

    Report date 2024-09-04 · 0000936395-24-000030 · Items 2.02,5.02,9.01

  40. 10-Q · Quarterly report

    Report date 2024-04-27 · 0000936395-24-000025

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: 23 transaction rows23SGrant / award: 0 transaction rows0AExercise / conversion: 0 transaction rows0MTax / exercise payment: 36 transaction rows36FGift: 1 transaction rows1G
P · PurchaseS · SaleA · Grant / awardM · Exercise / conversionF · Tax / exercise paymentG · Gift

60 matching transaction rows. Showing 51 to 60.

Transaction / filedReporting ownerTypeSecuritySharesReported price
2026-08-01
2026-08-04
Graff Marc D.F · Tax / exercise payment
Disposed
Common Stock14441.0377.05
2026-07-15
2026-07-17
Gage Brodie
10b5-1 checkbox reported
S · Sale
Disposed
Common Stock1200.0449.15
2026-07-15
2026-07-17
DiPerna Dino
10b5-1 checkbox reported
S · Sale
Disposed
Common Stock391.0449.15
2026-07-15
2026-07-17
DiPerna Dino
10b5-1 checkbox reported
S · Sale
Disposed
Common Stock391.0449.15
2026-07-15
2026-07-17
Rothenstein David M
10b5-1 checkbox reported
S · Sale
Disposed
Common Stock2500.0420.91
2026-07-15
2026-07-17
SMITH GARY B
10b5-1 checkbox reported
S · Sale
Disposed
Common Stock2952.0421.1
2026-07-01
2026-07-06
Graff Marc D.
10b5-1 checkbox reported
S · Sale
Disposed
Common Stock126.0466.2
2026-07-01
2026-07-06
Kosaraju Sheela
10b5-1 checkbox reported
S · Sale
Disposed
Common Stock2013.0466.2
2026-07-01
2026-07-06
Phipps Jason
10b5-1 checkbox reported
S · Sale
Disposed
Common Stock2629.0466.2
2026-07-01
2026-07-06
SMITH GARY B
10b5-1 checkbox reported
S · Sale
Disposed
Common Stock2952.0468.83

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 · 0000936395CIENA 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 2026-10-15 · 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
    2024-11-02$4.01B$4.33B
    2023-10-28$4.39B$4.88B
    2022-10-29$3.63B$4.23B
    2021-10-30$3.62B$4.55B
    2020-10-31$3.53B$4.61B
    2019-11-02$3.57B$4.72B
    2018-11-03$3.09B$4.17B

    Bureau of Labor Statistics · retrieved 2026-10-22 · 9 selected series; gaps remain missing

    Explore the CPI history ↗