CIENA CORP — 425 Filings
28 425 filings on record
This page lists all 425 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 28 425 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 |
|---|---|---|---|---|
| 425 | 8-K | 0001193125-17-245225 | Aug 2, 2017 | — |
| 425 | FORM 8-K | 0001193125-17-220187 | Jun 30, 2017 | — |
| 425 | 8-K | 0000936395-15-000042 | Jun 16, 2015 | — |
| 425 | 425 | 0001193125-15-169328 | May 4, 2015 | — |
| 425 | 425 | 0001193125-15-169324 | May 4, 2015 | — |
| 425 | 425 | 0001193125-15-169320 | May 4, 2015 | — |
| 425 | FORM 8-K | 0001193125-15-169312 | May 4, 2015 | — |
| 425 | 425 FILING | 0000950133-04-000986 | Mar 18, 2004 | — |
| 425 | 425 FILIING | 0000950133-04-000985 | Mar 18, 2004 | — |
| 425 | 425 | 0000950133-04-000569 | Feb 20, 2004 | — |
| 425 | 425 | 0000950133-04-000568 | Feb 20, 2004 | — |
| 425 | 425 | 0000950133-04-000520 | Feb 19, 2004 | — |
| 425 | 425 | 0000950133-04-000516 | Feb 19, 2004 | — |
| 425 | 425 | 0000950133-04-000519 | Feb 19, 2004 | — |
| 425 | 425 | 0000950133-04-000515 | Feb 19, 2004 | — |
| 425 | FILED PURSUANT TO RULE 425 | 0000950133-03-001276 | Apr 10, 2003 | — |
| 425 | FILED PURSUANT TO RULE 425 | 0000950133-03-001274 | Apr 10, 2003 | — |
| 425 | FILED PURSUANT TO RULE 425 | 0000950133-03-001265 | Apr 9, 2003 | — |
| 425 | FORM 425 | 0000950133-02-001536 | Apr 18, 2002 | — |
| 425 | CIENA CORPORATION // 425 FILING | 0000950133-02-001385 | Apr 8, 2002 | — |
| 425 | 425 | 0000950133-02-000598 | Feb 20, 2002 | — |
| 425 | FORM 425 | 0000950133-02-000584 | Feb 19, 2002 | — |
| 425 | FORM 425 | 0000950133-02-000580 | Feb 19, 2002 | — |
| 425 | 425 | 0000950133-02-000578 | Feb 19, 2002 | — |
| 425 | PURSUANT TO RULE 425 | 0000950133-01-000029 | Jan 4, 2001 | — |
| 425 | PURSUANT TO RULE 425 | 0000950133-00-004933 | Dec 20, 2000 | — |
| 425 | PURSUANT TO RULE 425 | 0000950133-00-004930 | Dec 20, 2000 | — |
| 425 | PURSUANT TO RULE 425 | 0000950133-00-004919 | Dec 19, 2000 | — |