CIENA CORP (CIEN) Form 10-Q Quarterly Reports
CIENA CORP (CIEN) is a publicly traded company on the NYSE, categorized under SIC 3661 (Telephone & Telegraph Apparatus). Access real-time SEC filings, 10-K annual reports, 10-Q quarterlies, 8-K current reports, PCAOB auditor history, and executive compensation disclosures.
Ticker: CIEN
CIK: 936395
Exchange: NYSE
SIC 3661: Telephone & Telegraph Apparatus
Fiscal Year End: 10/31
State: MD
Independent PCAOB Auditor
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Audit Firm
PricewaterhouseCoopers LLP
Auditor SinceSince 10/31/2017 12:00:00 AM
Lead Engagement PartnerEric Gillman
Audit LocationBaltimore, Maryland, United States
Latest SEC EDGAR Filings
Showing 10-K, 10-Q, 8-K, Form 4, and other SEC submissions| Form | Filing Date | Reporting Period | Description | Accession Number | Actions |
|---|---|---|---|---|---|
| 144 | 2026-10-15 | — | 144 Filing | 0001958244-26-000663 | View SEC Doc Filr Page |
| 144 | 2026-10-15 | — | 144 Filing | 0001950047-26-010265 | View SEC Doc Filr Page |
| 144 | 2026-10-15 | — | 144 Filing | 0001950047-26-010236 | View SEC Doc Filr Page |
| 144 | 2026-10-15 | — | 144 Filing | 0001950047-26-010235 | View SEC Doc Filr Page |
| 4 | 2026-10-13 | 2026-10-01 | PRIMARY DOCUMENT | 0001032553-26-000043 | View SEC Doc Filr Page |
| 4 | 2026-10-06 | 2026-10-01 | PRIMARY DOCUMENT | 0002080157-26-000015 | View SEC Doc Filr Page |
| 4 | 2026-10-06 | 2026-10-01 | PRIMARY DOCUMENT | 0001963781-26-000014 | View SEC Doc Filr Page |
| 4 | 2026-10-06 | 2026-10-01 | PRIMARY DOCUMENT | 0001699193-26-000010 | View SEC Doc Filr Page |
| 144 | 2026-10-01 | — | 144 Filing | 0001950047-26-009954 | View SEC Doc Filr Page |
| 144 | 2026-10-01 | — | 144 Filing | 0001950047-26-009905 | View SEC Doc Filr Page |
| 144 | 2026-10-01 | — | 144 Filing | 0001950047-26-009904 | View SEC Doc Filr Page |
| 4 | 2026-09-29 | 2026-09-25 | PRIMARY DOCUMENT | 0001963638-26-000013 | View SEC Doc Filr Page |
| 4 | 2026-09-28 | 2026-09-24 | STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIES | 0001123292-26-001329 | View SEC Doc Filr Page |
| 144 | 2026-09-25 | — | 144 Filing | 0001950047-26-009819 | View SEC Doc Filr Page |
| 4 | 2026-09-25 | 2026-09-23 | PRIMARY DOCUMENT | 0001251445-26-000004 | View SEC Doc Filr Page |
| 144 | 2026-09-23 | — | 144 Filing | 0001950047-26-009774 | View SEC Doc Filr Page |
| 4 | 2026-09-22 | 2026-09-20 | PRIMARY DOCUMENT | 0001963638-26-000011 | View SEC Doc Filr Page |
| 4 | 2026-09-22 | 2026-09-20 | PRIMARY DOCUMENT | 0001998460-26-000013 | View SEC Doc Filr Page |
| 4 | 2026-09-22 | 2026-09-20 | PRIMARY DOCUMENT | 0002141720-26-000002 | View SEC Doc Filr Page |
| 4 | 2026-09-22 | 2026-09-20 | PRIMARY DOCUMENT | 0001998826-26-000020 | View SEC Doc Filr Page |
| 4 | 2026-09-22 | 2026-09-20 | PRIMARY DOCUMENT | 0001032553-26-000041 | View SEC Doc Filr Page |
| 4 | 2026-09-22 | 2026-09-20 | PRIMARY DOCUMENT | 0001444157-26-000026 | View SEC Doc Filr Page |
| 4 | 2026-09-22 | 2026-09-20 | PRIMARY DOCUMENT | 0001699193-26-000008 | View SEC Doc Filr Page |
| 4 | 2026-09-22 | 2026-09-20 | PRIMARY DOCUMENT | 0001963781-26-000012 | View SEC Doc Filr Page |
| 4 | 2026-09-22 | 2026-09-20 | PRIMARY DOCUMENT | 0002080157-26-000013 | View SEC Doc Filr Page |