CIENA CORP — 8-K/A Filings
9 8-K/A filings on record
This page lists all 8-K/A 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 9 8-K/A 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 |
|---|---|---|---|---|
| 8-K/A | 8-K/A | 0000936395-18-000002 | Jan 16, 2018 | Mar 23, 2017 |
| 8-K/A | 8-K/A | 0000936395-17-000053 | Oct 30, 2017 | Aug 23, 2017 |
| 8-K/A | 8-K/A | 0000936395-14-000034 | Jun 3, 2014 | Apr 10, 2014 |
| 8-K/A | FORM 8-K/A | 0000950123-10-084690 | Sep 9, 2010 | May 11, 2010 |
| 8-K/A | FORM 8-K/A | 0000950123-10-054157 | May 28, 2010 | Mar 19, 2010 |
| 8-K/A | FORM 8-K/A | 0000950133-08-001943 | May 12, 2008 | Mar 3, 2008 |
| 8-K/A | AMENDED FORM 8-K DATED MARCH 31, 1999 | 0000950133-99-001200 | Apr 5, 1999 | Mar 31, 1999 |
| 8-K/A | CIENA CORPORATION FORM 8-K, AMENDMENT NO. 2 | 0000950133-97-003334 | Sep 22, 1997 | — |
| 8-K/A | CIENA CORPORATION FROM 8-K/A. | 0000950133-97-002710 | Aug 6, 1997 | — |