| Date | Event |
|---|
| 25-Mar-13 | CIENA CORP Files SEC form 8-K, Submission of Matters to a Vote of Security Holders |
| 13-Mar-13 | CIENA CORP Files SEC form 10-Q, Quarterly Report |
| 7-Mar-13 | CIENA CORP Files SEC form 8-K, Results of Operations and Financial Condition, Financial Statements and Exhibits |
| 29-Jan-13 | CIENA CORP Files SEC form 8-K, Regulation FD Disclosure |
| 31-Dec-12 | CIENA CORP Files SEC form 8-K, Entry into a Material Definitive Agreement, Creation of a Direct Financial Obligation |
| 21-Dec-12 | CIENA CORP Files SEC form 10-K, Annual Report |
| 19-Dec-12 | CIENA CORP Files SEC form 8-K, Unregistered Sale of Equity Securities, Other Events, Financial Statements and Exhibit |
| 13-Dec-12 | CIENA CORP Files SEC form 8-K, Results of Operations and Financial Condition, Financial Statements and Exhibits |
| 25-Sep-12 | CIENA CORP Files SEC form 8-K, Change in Directors or Principal Officers |
| 5-Sep-12 | CIENA CORP Files SEC form 10-Q, Quarterly Report |
| 30-Aug-12 | CIENA CORP Files SEC form 8-K, Results of Operations and Financial Condition, Financial Statements and Exhibits |
| 15-Aug-12 | CIENA CORP Files SEC form 8-K, Entry into a Material Definitive Agreement, Creation of a Direct Financial Obligation |
| 6-Jun-12 | CIENA CORP Files SEC form 10-Q, Quarterly Report |
| 1-Jun-12 | CIENA CORP Files SEC form 8-K, Financial Statements and Exhibits |
| 31-May-12 | CIENA CORP Files SEC form 8-K, Results of Operations and Financial Condition, Financial Statements and Exhibits |