<SEC-DOCUMENT>0000936395-16-000109-index.html : 20160805 <SEC-HEADER>0000936395-16-000109.hdr.sgml : 20160805 <ACCEPTANCE-DATETIME>20160805165030 ACCESSION NUMBER: 0000936395-16-000109 CONFORMED SUBMISSION TYPE: 8-K PUBLIC DOCUMENT COUNT: 1 CONFORMED PERIOD OF REPORT: 20160805 ITEM INFORMATION: Other Events FILED AS OF DATE: 20160805 DATE AS OF CHANGE: 20160805 FILER: COMPANY DATA: COMPANY CONFORMED NAME: CIENA CORP CENTRAL INDEX KEY: 0000936395 STANDARD INDUSTRIAL CLASSIFICATION: TELEPHONE & TELEGRAPH APPARATUS [3661] IRS NUMBER: 232725311 STATE OF INCORPORATION: DE FISCAL YEAR END: 1031 FILING VALUES: FORM TYPE: 8-K SEC ACT: 1934 Act SEC FILE NUMBER: 001-36250 FILM NUMBER: 161811789 BUSINESS ADDRESS: STREET 1: 7035 RIDGE ROAD CITY: HANOVER STATE: MD ZIP: 21076 BUSINESS PHONE: 4108658500 MAIL ADDRESS: STREET 1: 7035 RIDGE ROAD CITY: HANOVER STATE: MD ZIP: 21076 </SEC-HEADER> <DOCUMENT> <TYPE>8-K <SEQUENCE>1 <FILENAME>a8-knoterepurchaseaugust20.htm <DESCRIPTION>8-K <TEXT> Document 1 - file: a8-knoterepurchaseaugust20.htm
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