<SEC-DOCUMENT>0000936395-18-000043-index.html : 20181213 <SEC-HEADER>0000936395-18-000043.hdr.sgml : 20181213 <ACCEPTANCE-DATETIME>20181213070329 ACCESSION NUMBER: 0000936395-18-000043 CONFORMED SUBMISSION TYPE: 8-K PUBLIC DOCUMENT COUNT: 44 CONFORMED PERIOD OF REPORT: 20181213 ITEM INFORMATION: Results of Operations and Financial Condition ITEM INFORMATION: Other Events ITEM INFORMATION: Financial Statements and Exhibits FILED AS OF DATE: 20181213 DATE AS OF CHANGE: 20181213 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: 181232153 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-k2018q4earningsrelease.htm <DESCRIPTION>8-K <TEXT> Document 1 - file: a8-k2018q4earningsrelease.htm
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