CIENA CORP reports

Company location: Hanover, MD
Fiscal year end: 31 October

CIENA CORP has filed 3,751 SEC EDGAR filings since 12 Dec 1996

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SEC filing history

Showing 901-925 of 1,000 matching filings.

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25

Current page

37

4

PRIMARY DOCUMENT

Filing date: 16 Apr 2021
Reporting date: 15 Apr 2021
SEC evidence: Open document Open filing
Next action: Verify source filing

4

PRIMARY DOCUMENT

Filing date: 16 Apr 2021
Reporting date: 15 Apr 2021
SEC evidence: Open document Open filing
Next action: Verify source filing

4

PRIMARY DOCUMENT

Filing date: 16 Apr 2021
Reporting date: 15 Apr 2021
SEC evidence: Open document Open filing
Next action: Verify source filing

4

PRIMARY DOCUMENT

Filing date: 14 Apr 2021
Reporting date: 12 Apr 2021
SEC evidence: Open document Open filing
Next action: Verify source filing

SC 13G/A File 005-54195

SC 13G/A filing

Filing date: 12 Apr 2021
Reporting date: Not listed
SEC evidence: Open document Open filing
Next action: Verify source filing

8-K File 001-36250

8-K

Filing date: 06 Apr 2021
Reporting date: 01 Apr 2021
SEC evidence: Open document Open filing Open XBRL
Next action: Verify source filing

4

PRIMARY DOCUMENT

Filing date: 05 Apr 2021
Reporting date: 01 Apr 2021
SEC evidence: Open document Open filing
Next action: Verify source filing

4

PRIMARY DOCUMENT

Filing date: 05 Apr 2021
Reporting date: 01 Apr 2021
SEC evidence: Open document Open filing
Next action: Verify source filing

4

PRIMARY DOCUMENT

Filing date: 05 Apr 2021
Reporting date: 01 Apr 2021
SEC evidence: Open document Open filing
Next action: Verify source filing

4

PRIMARY DOCUMENT

Filing date: 05 Apr 2021
Reporting date: 01 Apr 2021
SEC evidence: Open document Open filing
Next action: Verify source filing

4

PRIMARY DOCUMENT

Filing date: 05 Apr 2021
Reporting date: 01 Apr 2021
SEC evidence: Open document Open filing
Next action: Verify source filing

4

PRIMARY DOCUMENT

Filing date: 05 Apr 2021
Reporting date: 01 Apr 2021
SEC evidence: Open document Open filing
Next action: Verify source filing

4

PRIMARY DOCUMENT

Filing date: 05 Apr 2021
Reporting date: 01 Apr 2021
SEC evidence: Open document Open filing
Next action: Verify source filing

4

PRIMARY DOCUMENT

Filing date: 05 Apr 2021
Reporting date: 01 Apr 2021
SEC evidence: Open document Open filing
Next action: Verify source filing

4

PRIMARY DOCUMENT

Filing date: 05 Apr 2021
Reporting date: 01 Apr 2021
SEC evidence: Open document Open filing
Next action: Verify source filing

4

PRIMARY DOCUMENT

Filing date: 25 Mar 2021
Reporting date: 23 Mar 2021
SEC evidence: Open document Open filing
Next action: Verify source filing

4

PRIMARY DOCUMENT

Filing date: 24 Mar 2021
Reporting date: 23 Mar 2021
SEC evidence: Open document Open filing
Next action: Verify source filing

4

PRIMARY DOCUMENT

Filing date: 24 Mar 2021
Reporting date: 23 Mar 2021
SEC evidence: Open document Open filing
Next action: Verify source filing

4

PRIMARY DOCUMENT

Filing date: 23 Mar 2021
Reporting date: 20 Mar 2021
SEC evidence: Open document Open filing
Next action: Verify source filing

4

PRIMARY DOCUMENT

Filing date: 23 Mar 2021
Reporting date: 20 Mar 2021
SEC evidence: Open document Open filing
Next action: Verify source filing

4

PRIMARY DOCUMENT

Filing date: 23 Mar 2021
Reporting date: 20 Mar 2021
SEC evidence: Open document Open filing
Next action: Verify source filing

4

PRIMARY DOCUMENT

Filing date: 23 Mar 2021
Reporting date: 20 Mar 2021
SEC evidence: Open document Open filing
Next action: Verify source filing

4

PRIMARY DOCUMENT

Filing date: 23 Mar 2021
Reporting date: 20 Mar 2021
SEC evidence: Open document Open filing
Next action: Verify source filing

4

PRIMARY DOCUMENT

Filing date: 23 Mar 2021
Reporting date: 20 Mar 2021
SEC evidence: Open document Open filing
Next action: Verify source filing

4

PRIMARY DOCUMENT

Filing date: 23 Mar 2021
Reporting date: 20 Mar 2021
SEC evidence: Open document Open filing
Next action: Verify source filing

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