CIENA CORP reports

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

CIENA CORP has filed 3,754 SEC EDGAR filings since 12 Dec 1996

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SEC filing history

Showing 951-975 of 1,000 matching filings.

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39

SC 13G/A File 005-54195

SC 13G/A filing

Filing date: 29 Jan 2021
Reporting date: Not listed
SEC evidence: Open document Open filing
Next action: Verify source filing

4

PRIMARY DOCUMENT

Filing date: 26 Jan 2021
Reporting date: 25 Jan 2021
SEC evidence: Open document Open filing
Next action: Verify source filing

4

PRIMARY DOCUMENT

Filing date: 25 Jan 2021
Reporting date: 21 Jan 2021
SEC evidence: Open document Open filing
Next action: Verify source filing

4

PRIMARY DOCUMENT

Filing date: 19 Jan 2021
Reporting date: 15 Jan 2021
SEC evidence: Open document Open filing
Next action: Verify source filing

4

PRIMARY DOCUMENT

Filing date: 19 Jan 2021
Reporting date: 15 Jan 2021
SEC evidence: Open document Open filing
Next action: Verify source filing

4

PRIMARY DOCUMENT

Filing date: 19 Jan 2021
Reporting date: 15 Jan 2021
SEC evidence: Open document Open filing
Next action: Verify source filing

4

PRIMARY DOCUMENT

Filing date: 13 Jan 2021
Reporting date: 11 Jan 2021
SEC evidence: Open document Open filing
Next action: Verify source filing

4

PRIMARY DOCUMENT

Filing date: 07 Jan 2021
Reporting date: 05 Jan 2021
SEC evidence: Open document Open filing
Next action: Verify source filing

4

PRIMARY DOCUMENT

Filing date: 30 Dec 2020
Reporting date: 28 Dec 2020
SEC evidence: Open document Open filing
Next action: Verify source filing

4

PRIMARY DOCUMENT

Filing date: 23 Dec 2020
Reporting date: 22 Dec 2020
SEC evidence: Open document Open filing
Next action: Verify source filing

4

PRIMARY DOCUMENT

Filing date: 23 Dec 2020
Reporting date: 22 Dec 2020
SEC evidence: Open document Open filing
Next action: Verify source filing

4

PRIMARY DOCUMENT

Filing date: 23 Dec 2020
Reporting date: 21 Dec 2020
SEC evidence: Open document Open filing
Next action: Verify source filing

4

PRIMARY DOCUMENT

Filing date: 22 Dec 2020
Reporting date: 21 Dec 2020
SEC evidence: Open document Open filing
Next action: Verify source filing

4

PRIMARY DOCUMENT

Filing date: 22 Dec 2020
Reporting date: 20 Dec 2020
SEC evidence: Open document Open filing
Next action: Verify source filing

4

PRIMARY DOCUMENT

Filing date: 22 Dec 2020
Reporting date: 20 Dec 2020
SEC evidence: Open document Open filing
Next action: Verify source filing

4

PRIMARY DOCUMENT

Filing date: 22 Dec 2020
Reporting date: 20 Dec 2020
SEC evidence: Open document Open filing
Next action: Verify source filing

4

PRIMARY DOCUMENT

Filing date: 22 Dec 2020
Reporting date: 20 Dec 2020
SEC evidence: Open document Open filing
Next action: Verify source filing

4

PRIMARY DOCUMENT

Filing date: 22 Dec 2020
Reporting date: 20 Dec 2020
SEC evidence: Open document Open filing
Next action: Verify source filing

4

PRIMARY DOCUMENT

Filing date: 22 Dec 2020
Reporting date: 20 Dec 2020
SEC evidence: Open document Open filing
Next action: Verify source filing

4

PRIMARY DOCUMENT

Filing date: 22 Dec 2020
Reporting date: 20 Dec 2020
SEC evidence: Open document Open filing
Next action: Verify source filing

4

PRIMARY DOCUMENT

Filing date: 22 Dec 2020
Reporting date: 20 Dec 2020
SEC evidence: Open document Open filing
Next action: Verify source filing

4

PRIMARY DOCUMENT

Filing date: 18 Dec 2020
Reporting date: 16 Dec 2020
SEC evidence: Open document Open filing
Next action: Verify source filing

10-K File 001-36250

10-K

Filing date: 18 Dec 2020
Reporting date: 31 Oct 2020
SEC evidence: Open document Open filing Open XBRL
Next action: Verify source filing

4

PRIMARY DOCUMENT

Filing date: 18 Dec 2020
Reporting date: 16 Dec 2020
SEC evidence: Open document Open filing
Next action: Verify source filing

4

PRIMARY DOCUMENT

Filing date: 18 Dec 2020
Reporting date: 16 Dec 2020
SEC evidence: Open document Open filing
Next action: Verify source filing

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