CIENA CORP — SC 13G/A Filings
95 SC 13G/A filings on record
This page lists all SC 13G/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 95 SC 13G/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 |
|---|---|---|---|---|
| SC 13G/A | SCHEDULE 13G/A | 0001144204-14-006757 | Feb 7, 2014 | — |
| SC 13G/A | — | 0001390777-14-000010 | Jan 28, 2014 | — |
| SC 13G/A | — | 0001011438-13-000146 | Feb 14, 2013 | — |
| SC 13G/A | — | 0000312348-13-000010 | Feb 14, 2013 | — |
| SC 13G/A | SC 13G/A | 0001144204-13-009105 | Feb 14, 2013 | — |
| SC 13G/A | AMENDMENT #1 | 0000899140-13-000161 | Feb 14, 2013 | — |
| SC 13G/A | SC 13G/A | 0001193125-13-059252 | Feb 14, 2013 | — |
| SC 13G/A | DISCLOSURE DOCUMENT | 0000902219-13-000118 | Feb 14, 2013 | — |
| SC 13G/A | CIENA CORPORATION | 0000902664-13-000795 | Feb 14, 2013 | — |
| SC 13G/A | DISCLOSURE DOCUMENT | 0000902219-13-000021 | Feb 11, 2013 | — |
| SC 13G/A | — | 0001086364-13-000335 | Jan 11, 2013 | — |
| SC 13G/A | — | 0001086364-12-002895 | Sep 10, 2012 | — |
| SC 13G/A | — | 0000315066-12-003304 | Mar 12, 2012 | — |
| SC 13G/A | CIENA CORPORATION | 0000902664-12-000407 | Feb 14, 2012 | — |
| SC 13G/A | — | 0000312348-12-000004 | Feb 14, 2012 | — |
| SC 13G/A | — | 0000315066-12-002505 | Feb 14, 2012 | — |
| SC 13G/A | SC 13G/A AMENDMENT NO. 1 FOR ARTIS CAPITAL MANAGEMENT - CIENA CORPORATION | 0000904454-12-000149 | Feb 14, 2012 | — |
| SC 13G/A | SCHEDULE 13G AMENDMENT NO. 3 | 0001193125-12-060971 | Feb 14, 2012 | — |
| SC 13G/A | — | 0001086364-12-001523 | Feb 13, 2012 | — |
| SC 13G/A | — | 0001011438-12-000007 | Jan 6, 2012 | — |
| SC 13G/A | — | 0000312348-11-000055 | Dec 12, 2011 | — |
| SC 13G/A | CIENA | 0000315066-11-004084 | Oct 11, 2011 | — |
| SC 13G/A | — | 0000312348-11-000026 | Feb 14, 2011 | — |
| SC 13G/A | SCHEDULE 13G AMENDMENT NO. 3 | 0001193125-11-035334 | Feb 14, 2011 | — |
| SC 13G/A | — | 0001086364-11-002624 | Feb 3, 2011 | — |
| SC 13G/A | AMENDMENT NO. 2 TO SCHEDULE 13G | 0001193125-10-032275 | Feb 16, 2010 | — |
| SC 13G/A | — | 0001144204-10-008065 | Feb 16, 2010 | — |
| SC 13G/A | — | 0000919574-10-001230 | Feb 16, 2010 | — |
| SC 13G/A | DOC ONE | 0000315066-10-000111 | Jan 11, 2010 | — |
| SC 13G/A | CIENACORP1208ANNUAL | 0000053417-09-000058 | Feb 17, 2009 | — |
| SC 13G/A | DOC ONE | 0000315066-09-001585 | Feb 17, 2009 | — |
| SC 13G/A | SCHEDULE 13G/A | 0001193125-09-031108 | Feb 17, 2009 | — |
| SC 13G/A | — | 0001144204-09-007891 | Feb 13, 2009 | — |
| SC 13G/A | — | 0001137774-08-000082 | Mar 10, 2008 | — |
| SC 13G/A | DOC ONE | 0000315066-08-001493 | Feb 14, 2008 | — |
| SC 13G/A | CIEN AS OF 12-31-07 | 0000080255-08-000283 | Feb 13, 2008 | — |
| SC 13G/A | DOC ONE | 0000315066-07-001627 | Feb 14, 2007 | — |
| SC 13G/A | DOC ONE | 0000315066-06-002517 | Feb 14, 2006 | — |
| SC 13G/A | DOC ONE | 0000315066-05-000564 | Feb 14, 2005 | — |
| SC 13G/A | DOC ONE | 0000315066-04-001812 | Jul 12, 2004 | — |
| SC 13G/A | DOC ONE | 0000315066-04-000459 | Feb 17, 2004 | — |
| SC 13G/A | DOC ONE | 0000315066-03-003138 | Dec 10, 2003 | — |
| SC 13G/A | DOC ONE | 0000315066-02-001698 | May 10, 2002 | — |
| SC 13G/A | DOC ONE | 0000315066-02-000086 | Jan 10, 2002 | — |
| SC 13G/A | SCHEDULE 13G - 02-14-01 - CIENA CORPORATION | 0000315066-01-000239 | Feb 13, 2001 | — |