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Ciena Corporation — SEC Filings — 10-K, 10-Q, 8-K

CIEN
NYSETechnologyCommunication EquipmentCIK 0000936395ciena.comAbout CIEN
Last close · Oct 16, 2026332.73−23.79 (−6.67%)
Market cap$47.2B

What the company itself has filed with the SEC: annual and quarterly reports, 8-K current reports with the earnings press release, proxy statements and securities offerings. The originals, each linked to EDGAR.

SEC filings

48 since 2023-10-18
  1. 2026-09-0310-Q
    Quarterly report · period ended 2026-08-01
    Filing ↗
  2. 2026-09-038-K
    2.02Results of Operations (Earnings)9.01Financial Statements and Exhibits
    Press release ↗Filing ↗
  3. 2026-06-118-K
    1.01Entry into a Material Agreement2.03Creation of a Direct Financial Obligation3.02Unregistered Sale of Equity8.01Other Events9.01Financial Statements and Exhibits
    Filing ↗
  4. 2026-06-088-K
    8.01Other Events9.01Financial Statements and Exhibits
    Filing ↗
  5. 2026-06-0410-Q
    Quarterly report · period ended 2026-05-02
    Filing ↗
  6. 2026-06-048-K
    2.02Results of Operations (Earnings)9.01Financial Statements and Exhibits
    Press release ↗Filing ↗
  7. 2026-03-318-K
    5.07Submission of Matters to a Shareholder Vote
    Filing ↗
  8. 2026-03-0510-Q
    Quarterly report · period ended 2026-01-31
    Filing ↗
  9. 2026-03-058-K
    2.02Results of Operations (Earnings)9.01Financial Statements and Exhibits
    Press release ↗Filing ↗
  10. 2026-02-12ARS
    Annual report to shareholders · period ended 2025-11-01
    Filing ↗
  11. 2026-02-12DEFA14A
    Additional proxy materials
    Filing ↗
  12. 2026-02-12DEF 14A
    Proxy statement
    Filing ↗
  13. 2025-12-1210-K
    Annual report · period ended 2025-11-01
    Filing ↗
  14. 2025-12-118-K
    2.02Results of Operations (Earnings)9.01Financial Statements and Exhibits
    Press release ↗Filing ↗
  15. 2025-12-048-K
    5.02Departure/Election of Directors or Officers
    Filing ↗
  16. 2025-10-078-K
    8.01Other Events
    Filing ↗
  17. 2025-09-228-K
    8.01Other Events9.01Financial Statements and Exhibits
    Filing ↗
  18. 2025-09-0410-Q
    Quarterly report · period ended 2025-08-02
    Filing ↗
  19. 2025-09-048-K
    2.02Results of Operations (Earnings)9.01Financial Statements and Exhibits
    Press release ↗Filing ↗
  20. 2025-06-188-K
    5.02Departure/Election of Directors or Officers7.01Regulation FD Disclosure9.01Financial Statements and Exhibits
    Filing ↗
  21. 2025-06-0510-Q
    Quarterly report · period ended 2025-05-03
    Filing ↗
  22. 2025-06-058-K
    2.02Results of Operations (Earnings)9.01Financial Statements and Exhibits
    Press release ↗Filing ↗
  23. 2025-04-018-K
    5.07Submission of Matters to a Shareholder Vote
    Filing ↗
  24. 2025-03-1210-Q
    Quarterly report · period ended 2025-02-01
    Filing ↗
  25. 2025-03-118-K
    2.02Results of Operations (Earnings)9.01Financial Statements and Exhibits
    Press release ↗Filing ↗
  26. 2025-02-13ARS
    Annual report to shareholders · period ended 2024-11-02
    Filing ↗
  27. 2025-02-13DEFA14A
    Additional proxy materials
    Filing ↗
  28. 2025-02-13DEF 14A
    Proxy statement
    Filing ↗
  29. 2025-01-218-K
    1.01Entry into a Material Agreement2.03Creation of a Direct Financial Obligation9.01Financial Statements and Exhibits
    Filing ↗
  30. 2024-12-2010-K
    Annual report · period ended 2024-11-02
    Filing ↗
  31. 2024-12-128-K
    2.02Results of Operations (Earnings)5.02Departure/Election of Directors or Officers5.03Amendment to Articles/Bylaws7.01Regulation FD Disclosure9.01Financial Statements and Exhibits
    Press release ↗Filing ↗
  32. 2024-10-028-K
    8.01Other Events9.01Financial Statements and Exhibits
    Filing ↗
  33. 2024-09-0410-Q
    Quarterly report · period ended 2024-07-27
    Filing ↗
  34. 2024-09-048-K
    2.02Results of Operations (Earnings)5.02Departure/Election of Directors or Officers9.01Financial Statements and Exhibits
    Press release ↗Filing ↗
  35. 2024-06-0610-Q
    Quarterly report · period ended 2024-04-27
    Filing ↗
  36. 2024-06-068-K
    2.02Results of Operations (Earnings)9.01Financial Statements and Exhibits
    Press release ↗Filing ↗
  37. 2024-04-238-K
    5.02Departure/Election of Directors or Officers
    Filing ↗
  38. 2024-04-18S-8
    Employee stock plan registration
    Filing ↗
  39. 2024-03-268-K
    5.01Change in Control5.02Departure/Election of Directors or Officers9.01Financial Statements and Exhibits
    Filing ↗
  40. 2024-03-0710-Q
    Quarterly report · period ended 2024-01-27
    Filing ↗
  41. 2024-03-078-K
    2.02Results of Operations (Earnings)9.01Financial Statements and Exhibits
    Press release ↗Filing ↗
  42. 2024-02-08ARS
    Annual report to shareholders · period ended 2023-12-31
    Filing ↗
  43. 2024-02-08DEFA14A
    Additional proxy materials
    Filing ↗
  44. 2024-02-08DEF 14A
    Proxy statement
    Filing ↗
  45. 2024-01-29PRE 14A
    Preliminary proxy statement
    Filing ↗
  46. 2023-12-1510-K
    Annual report · period ended 2023-10-28
    Filing ↗
  47. 2023-12-078-K
    2.02Results of Operations (Earnings)9.01Financial Statements and Exhibits
    Press release ↗Filing ↗
  48. 2023-10-258-K
    1.01Entry into a Material Agreement1.02Termination of a Material Agreement2.03Creation of a Direct Financial Obligation9.01Financial Statements and Exhibits
    Filing ↗

Filings the company made itself, as EDGAR lists them; the documents stay on EDGAR. An 8-K is a current report, its item codes read from the filing metadata and coloured by materiality: high bankruptcy, delisting, restatement, change of control · material earnings, M&A, leadership · routine exhibits, Reg FD, votes. Insider trades (Form 4) are on Insiders; 13D/13G and 13F holders on Ownership.