<SEC-DOCUMENT>0001193125-17-220187-index.html : 20170630 <SEC-HEADER>0001193125-17-220187.hdr.sgml : 20170630 <ACCEPTANCE-DATETIME>20170630170109 ACCESSION NUMBER: 0001193125-17-220187 CONFORMED SUBMISSION TYPE: 425 PUBLIC DOCUMENT COUNT: 4 FILED AS OF DATE: 20170630 DATE AS OF CHANGE: 20170630 SUBJECT COMPANY: 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: 425 SEC ACT: 1934 Act SEC FILE NUMBER: 001-36250 FILM NUMBER: 17942939 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 FILED BY: 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: 425 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>425 <SEQUENCE>1 <FILENAME>d420838d8k.htm <DESCRIPTION>FORM 8-K <TEXT> Document 1 - file: d420838d8k.htm
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