CIENA CORP — 4 Filings
2,601 4 filings on record
This page lists all 4 filings submitted to the SEC by CIENA CORP (CIEN), sorted by most recent first. Each row links to the full filing on EdgarLookup. CIENA CORP has filed 2,601 4 documents with the SEC since 2020. To view all SEC filings by CIENA CORP, see the full filings list.
All
10-K
10-K/A
10-Q
10-Q/A
144
25
3
3/A
4
4/A
424B3
424B4
424B5
425
8-A12B
8-A12G
8-K
8-K/A
ARS
CERTNYS
CORRESP
CT ORDER
DEF 14A
DEFA14A
EFFECT
FWP
POS AM
POSASR
PRE 14A
PRER14A
REGDEX
REGDEX/A
S-1
S-1/A
S-3
S-3/A
S-3ASR
S-3MEF
S-4
S-4/A
S-8
S-8 POS
SC 13D
SC 13D/A
SC 13G
SC 13G/A
SC TO-C
SC TO-I
SC TO-I/A
SCHEDULE 13G/A
SD
UPLOAD
| Form | Description | Accession Number | Filed | Period |
|---|---|---|---|---|
| 4 | PRIMARY DOCUMENT | 0001998826-26-000004 | Mar 25, 2026 | Mar 24, 2026 |
| 4 | STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIES | 0001123292-26-000496 | Mar 24, 2026 | Mar 20, 2026 |
| 4 | STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIES | 0001123292-26-000500 | Mar 24, 2026 | Mar 20, 2026 |
| 4 | STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIES | 0001123292-26-000497 | Mar 24, 2026 | Mar 20, 2026 |
| 4 | STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIES | 0001123292-26-000502 | Mar 24, 2026 | Mar 20, 2026 |
| 4 | STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIES | 0001123292-26-000498 | Mar 24, 2026 | Mar 20, 2026 |
| 4 | STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIES | 0001123292-26-000499 | Mar 24, 2026 | Mar 20, 2026 |
| 4 | STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIES | 0001123292-26-000501 | Mar 24, 2026 | Mar 20, 2026 |
| 4 | STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIES | 0001123292-26-000503 | Mar 24, 2026 | Mar 20, 2026 |
| 4 | PRIMARY DOCUMENT | 0001032553-26-000013 | Mar 18, 2026 | Mar 16, 2026 |
| 4 | PRIMARY DOCUMENT | 0001444157-26-000010 | Mar 18, 2026 | Mar 16, 2026 |
| 4 | PRIMARY DOCUMENT | 0001032553-26-000010 | Mar 4, 2026 | Mar 2, 2026 |
| 4 | PRIMARY DOCUMENT | 0001032553-26-000008 | Feb 19, 2026 | Feb 17, 2026 |
| 4 | PRIMARY DOCUMENT | 0001444157-26-000007 | Feb 19, 2026 | Feb 17, 2026 |
| 4 | PRIMARY DOCUMENT | 0001032553-26-000006 | Feb 4, 2026 | Feb 2, 2026 |
| 4 | PRIMARY DOCUMENT | 0001963781-26-000004 | Jan 20, 2026 | Jan 15, 2026 |
| 4 | PRIMARY DOCUMENT | 0001699193-26-000002 | Jan 20, 2026 | Jan 15, 2026 |
| 4 | PRIMARY DOCUMENT | 0001032553-26-000004 | Jan 20, 2026 | Jan 15, 2026 |
| 4 | PRIMARY DOCUMENT | 0001998460-26-000002 | Jan 16, 2026 | Jan 15, 2026 |
| 4 | PRIMARY DOCUMENT | 0001963638-26-000002 | Jan 13, 2026 | Jan 12, 2026 |
| 4 | PRIMARY DOCUMENT | 0001221168-26-000002 | Jan 13, 2026 | Jan 12, 2026 |
| 4 | PRIMARY DOCUMENT | 0001444157-26-000005 | Jan 13, 2026 | Jan 9, 2026 |
| 4 | PRIMARY DOCUMENT | 0001032553-26-000002 | Jan 6, 2026 | Jan 5, 2026 |
| 4 | PRIMARY DOCUMENT | 0001963781-26-000002 | Jan 6, 2026 | Jan 2, 2026 |
| 4 | PRIMARY DOCUMENT | 0001032553-25-000060 | Dec 29, 2025 | Dec 22, 2025 |
| 4 | PRIMARY DOCUMENT | 0001998826-25-000035 | Dec 23, 2025 | Dec 20, 2025 |
| 4 | PRIMARY DOCUMENT | 0001963781-25-000019 | Dec 23, 2025 | Dec 20, 2025 |
| 4 | PRIMARY DOCUMENT | 0001699193-25-000023 | Dec 23, 2025 | Dec 20, 2025 |
| 4 | PRIMARY DOCUMENT | 0001444157-25-000033 | Dec 23, 2025 | Dec 20, 2025 |
| 4 | PRIMARY DOCUMENT | 0001998460-25-000021 | Dec 23, 2025 | Dec 20, 2025 |
| 4 | PRIMARY DOCUMENT | 0001963638-25-000017 | Dec 23, 2025 | Dec 20, 2025 |
| 4 | PRIMARY DOCUMENT | 0001032553-25-000058 | Dec 23, 2025 | Dec 20, 2025 |
| 4 | STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIES | 0001123292-25-000763 | Dec 18, 2025 | Dec 16, 2025 |
| 4 | PRIMARY DOCUMENT | 0001699193-25-000019 | Dec 18, 2025 | Oct 1, 2025 |
| 4 | PRIMARY DOCUMENT | 0001963638-25-000015 | Dec 18, 2025 | Dec 16, 2025 |
| 4 | PRIMARY DOCUMENT | 0001963781-25-000017 | Dec 18, 2025 | Dec 16, 2025 |
| 4 | PRIMARY DOCUMENT | 0001699193-25-000021 | Dec 18, 2025 | Dec 16, 2025 |
| 4 | PRIMARY DOCUMENT | 0001444157-25-000031 | Dec 18, 2025 | Dec 16, 2025 |
| 4 | PRIMARY DOCUMENT | 0001032553-25-000056 | Dec 18, 2025 | Dec 16, 2025 |
| 4 | PRIMARY DOCUMENT | 0001998460-25-000019 | Dec 18, 2025 | Dec 16, 2025 |
| 4 | PRIMARY DOCUMENT | 0001998826-25-000033 | Dec 18, 2025 | Dec 16, 2025 |
| 4 | PRIMARY DOCUMENT | 0001251445-25-000006 | Dec 17, 2025 | Dec 15, 2025 |
| 4 | PRIMARY DOCUMENT | 0001444157-25-000029 | Dec 16, 2025 | Dec 15, 2025 |
| 4 | PRIMARY DOCUMENT | 0001998826-25-000031 | Dec 16, 2025 | Dec 15, 2025 |
| 4 | PRIMARY DOCUMENT | 0001032553-25-000054 | Dec 5, 2025 | Dec 3, 2025 |
| 4 | PRIMARY DOCUMENT | 0001998460-25-000017 | Nov 18, 2025 | Nov 17, 2025 |
| 4 | PRIMARY DOCUMENT | 0001998826-25-000029 | Nov 18, 2025 | Nov 17, 2025 |
| 4 | PRIMARY DOCUMENT | 0001444157-25-000027 | Nov 18, 2025 | Nov 17, 2025 |
| 4 | PRIMARY DOCUMENT | 0001032553-25-000051 | Nov 12, 2025 | Nov 10, 2025 |
| 4 | PRIMARY DOCUMENT | 0001032553-25-000049 | Nov 5, 2025 | Nov 3, 2025 |