CIENA CORP — SC 13G Filings
43 SC 13G filings on record
This page lists all SC 13G 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 43 SC 13G 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 |
|---|---|---|---|---|
| SC 13G | — | 0001306550-23-000639 | Jan 20, 2023 | — |
| SC 13G | — | 0000315066-22-000848 | Feb 9, 2022 | — |
| SC 13G | — | 0001390777-17-000031 | Feb 3, 2017 | — |
| SC 13G | — | 0001256071-16-000021 | Feb 12, 2016 | — |
| SC 13G | SEC SCHEDULE 13G | 0000902219-16-000715 | Feb 11, 2016 | — |
| SC 13G | — | 0001390777-16-000146 | Jan 26, 2016 | — |
| SC 13G | — | 0001256071-15-000005 | Feb 12, 2015 | — |
| SC 13G | — | 0000930413-15-000555 | Feb 12, 2015 | — |
| SC 13G | — | 0000930413-15-000557 | Feb 12, 2015 | — |
| SC 13G | — | 0001256071-14-000011 | Feb 13, 2014 | — |
| SC 13G | SC 13G | 0001144204-13-015998 | Mar 19, 2013 | — |
| SC 13G | — | 0001256071-13-000006 | Feb 15, 2013 | — |
| SC 13G | — | 0000932471-13-004863 | Feb 13, 2013 | — |
| SC 13G | SCHEDULE 13G | 0001144204-13-007263 | Feb 11, 2013 | — |
| SC 13G | — | 0001390777-13-000026 | Feb 4, 2013 | — |
| SC 13G | DISCLOSURE DOCUMENT | 0000902219-12-000552 | Jul 10, 2012 | — |
| SC 13G | — | 0000899140-12-000370 | May 14, 2012 | — |
| SC 13G | — | 0001256071-12-000005 | Feb 15, 2012 | — |
| SC 13G | — | 0001144204-12-001965 | Jan 12, 2012 | — |
| SC 13G | SCHEDULE 13G FORM | 0001256071-11-000018 | Nov 14, 2011 | — |
| SC 13G | SCHEDULE 13G | 0000950123-11-086425 | Sep 23, 2011 | — |
| SC 13G | — | 0001011438-11-000291 | Sep 12, 2011 | — |
| SC 13G | — | 0001256071-11-000015 | Sep 2, 2011 | — |
| SC 13G | CIENA CORPORATION | 0000902664-11-001058 | Jun 17, 2011 | — |
| SC 13G | — | 0000935836-11-000045 | Feb 14, 2011 | — |
| SC 13G | DOC ONE | 0000315066-11-000161 | Jan 10, 2011 | — |
| SC 13G | — | 0000312348-10-000049 | Dec 10, 2010 | — |
| SC 13G | — | 0001086364-10-008126 | Jan 29, 2010 | — |
| SC 13G | KINGDOM RIDGE - CIENA CORP | 0000919574-09-003931 | Feb 23, 2009 | — |
| SC 13G | — | 0001144204-08-048371 | Aug 19, 2008 | — |
| SC 13G | SCHEDULE 13G | 0001193125-08-173020 | Aug 11, 2008 | — |
| SC 13G | — | 0001137774-08-000051 | Feb 6, 2008 | — |
| SC 13G | CIENA 0607 | 0000053417-07-000044 | Jul 10, 2007 | — |
| SC 13G | CIEN AS OF 12-31-2006 | 0000080255-07-000212 | Feb 13, 2007 | — |
| SC 13G | DOC ONE | 0000315066-06-005142 | Oct 10, 2006 | — |
| SC 13G | DOC ONE | 0000315066-03-001446 | Feb 13, 2003 | — |
| SC 13G | OAK ASSOCIATES/CIENA CORPORATION SC 13G | 0000950152-03-001610 | Feb 12, 2003 | — |
| SC 13G | CIENA CORP. | 0000912938-02-000191 | Feb 12, 2002 | — |
| SC 13G | OAK ASSOCIATES, LTD/CIENA CORPORATION SC 13G | 0000950152-02-000724 | Feb 5, 2002 | — |
| SC 13G | OAK ASSOCIATES/CIENA CORPORATION SCHEDULE 13G | 0000950152-01-000943 | Feb 13, 2001 | — |
| SC 13G | SCHEDULE 13G - 09-10-00 - CIENA CORPORATION | 0000315066-00-001175 | Sep 11, 2000 | — |
| SC 13G | OAK ASSOCIATES, LTD./CIENA CORPORATION | 0000950152-00-001051 | Feb 14, 2000 | — |
| SC 13G | CIENA CORP./OAK ASSOCIATES SC 13G | 0000950152-99-001249 | Feb 19, 1999 | — |