<SEC-DOCUMENT>0001193125-15-324445-index.html : 20150921 <SEC-HEADER>0001193125-15-324445.hdr.sgml : 20150921 <ACCEPTANCE-DATETIME>20150921162536 ACCESSION NUMBER: 0001193125-15-324445 CONFORMED SUBMISSION TYPE: SC TO-I/A PUBLIC DOCUMENT COUNT: 1 FILED AS OF DATE: 20150921 DATE AS OF CHANGE: 20150921 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: SC TO-I/A SEC ACT: 1934 Act SEC FILE NUMBER: 005-54195 FILM NUMBER: 151117635 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: SC TO-I/A 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>SC TO-I/A <SEQUENCE>1 <FILENAME>d58942dsctoia.htm <DESCRIPTION>SC TO-I/A <TEXT> Document 1 - file: d58942dsctoia.htm
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