CIENA CORP — 8-K Filings
262 8-K filings on record
This page lists all 8-K 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 262 8-K 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 | 8-K | 0000936395-20-000025 | Jun 4, 2020 | — |
| 8-K | 8-K | 0000936395-20-000014 | Apr 6, 2020 | Apr 2, 2020 |
| 8-K | 8-K | 0000936395-20-000006 | Mar 5, 2020 | — |
| 8-K | 8-K | 0001193125-20-017079 | Jan 28, 2020 | Jan 23, 2020 |
| 8-K | 8-K | 0000936395-19-000051 | Dec 12, 2019 | — |
| 8-K | 8-K | 0001193125-19-280501 | Oct 31, 2019 | Oct 28, 2019 |
| 8-K | 8-K | 0000936395-19-000045 | Oct 3, 2019 | — |
| 8-K | 8-K | 0000936395-19-000036 | Sep 5, 2019 | — |
| 8-K | 8-K | 0000936395-19-000033 | Aug 29, 2019 | Aug 28, 2019 |
| 8-K | 8-K | 0000936395-19-000017 | Jun 6, 2019 | — |
| 8-K | 8-K | 0000936395-19-000012 | Apr 1, 2019 | Mar 28, 2019 |
| 8-K | 8-K | 0000936395-19-000005 | Mar 5, 2019 | — |
| 8-K | 8-K | 0000936395-18-000043 | Dec 13, 2018 | — |
| 8-K | 8-K | 0000936395-18-000041 | Oct 18, 2018 | — |
| 8-K | 8-K | 0001193125-18-289772 | Oct 1, 2018 | Sep 28, 2018 |
| 8-K | 8-K | 0000936395-18-000039 | Sep 20, 2018 | — |
| 8-K | 8-K | 0000936395-18-000034 | Sep 5, 2018 | — |
| 8-K | 8-K | 0000936395-18-000031 | Aug 30, 2018 | — |
| 8-K | 8-K | 0000936395-18-000026 | Jun 13, 2018 | — |
| 8-K | 8-K | 0000936395-18-000021 | May 31, 2018 | — |
| 8-K | 8-K | 0000936395-18-000017 | Apr 12, 2018 | — |
| 8-K | 8-K | 0000936395-18-000015 | Apr 5, 2018 | Apr 3, 2018 |
| 8-K | 8-K | 0000936395-18-000009 | Mar 6, 2018 | — |
| 8-K | 8-K | 0000936395-17-000057 | Dec 7, 2017 | — |
| 8-K | 8-K | 0000936395-17-000045 | Aug 31, 2017 | — |
| 8-K | 8-K | 0000936395-17-000042 | Aug 24, 2017 | Aug 23, 2017 |
| 8-K | 8-K | 0001193125-17-245224 | Aug 2, 2017 | — |
| 8-K | FORM 8-K | 0001193125-17-220186 | Jun 30, 2017 | — |
| 8-K | 8-K | 0000936395-17-000040 | Jun 15, 2017 | — |
| 8-K | 8-K | 0000936395-17-000033 | Jun 1, 2017 | — |
| 8-K | 8-K | 0000936395-17-000026 | Mar 29, 2017 | Mar 23, 2017 |
| 8-K | 8-K | 0000936395-17-000024 | Mar 27, 2017 | Mar 23, 2017 |
| 8-K | 8-K | 0000936395-17-000017 | Mar 8, 2017 | — |
| 8-K | 8-K | 0000936395-17-000013 | Mar 1, 2017 | — |
| 8-K | 8-K | 0000936395-17-000007 | Feb 1, 2017 | — |
| 8-K | 8-K | 0000936395-17-000005 | Jan 27, 2017 | — |
| 8-K | 8-K | 0000936395-17-000003 | Jan 24, 2017 | — |
| 8-K | 8-K | 0000936395-16-000124 | Dec 8, 2016 | — |
| 8-K | 8-K | 0000936395-16-000118 | Nov 4, 2016 | Nov 1, 2016 |
| 8-K | 8-K | 0000936395-16-000112 | Sep 1, 2016 | — |
| 8-K | 8-K | 0000936395-16-000109 | Aug 5, 2016 | — |
| 8-K | 8-K | 0000936395-16-000107 | Jun 22, 2016 | Jun 21, 2016 |
| 8-K | 8-K | 0000936395-16-000098 | Jun 2, 2016 | — |
| 8-K | 8-K | 0000936395-16-000093 | Apr 26, 2016 | Apr 25, 2016 |
| 8-K | 8-K - 2016 ANNUAL MEETING RESULTS | 0000936395-16-000087 | Mar 30, 2016 | Mar 24, 2016 |
| 8-K | 8-K | 0000936395-16-000076 | Mar 3, 2016 | — |
| 8-K | 8-K | 0000936395-16-000066 | Jan 20, 2016 | — |
| 8-K | 8-K (ABL EXTENSION) | 0000936395-16-000064 | Jan 13, 2016 | Jan 8, 2016 |
| 8-K | 8-K | 0000936395-15-000058 | Dec 10, 2015 | — |
| 8-K | 8-K | 0000936395-15-000055 | Nov 2, 2015 | — |