<SEC-DOCUMENT>0000950170-25-019405-index.html : 20250213
<SEC-HEADER>0000950170-25-019405.hdr.sgml : 20250213
<ACCEPTANCE-DATETIME>20250213093548
ACCESSION NUMBER:		0000950170-25-019405
CONFORMED SUBMISSION TYPE:	DEFA14A
PUBLIC DOCUMENT COUNT:		4
FILED AS OF DATE:		20250213
DATE AS OF CHANGE:		20250213

FILER:

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			CIENA CORP
		CENTRAL INDEX KEY:			0000936395
		STANDARD INDUSTRIAL CLASSIFICATION:	TELEPHONE & TELEGRAPH APPARATUS [3661]
		ORGANIZATION NAME:           	04 Manufacturing
		IRS NUMBER:				232725311
		STATE OF INCORPORATION:			MD
		FISCAL YEAR END:			1102

	FILING VALUES:
		FORM TYPE:		DEFA14A
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-36250
		FILM NUMBER:		25617652

	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>DEFA14A
<SEQUENCE>1
<FILENAME>cien_noticeofavailabilit.htm
<DESCRIPTION>DEFA14A
<TEXT>
Document 1 - file: cien_noticeofavailabilit.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>2
<FILENAME>img45845535_0.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 2 - file: img45845535_0.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>3
<FILENAME>img45845535_1.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 3 - file: img45845535_1.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>4
<FILENAME>img45845535_2.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 4 - file: img45845535_2.jpg

</DOCUMENT>
</SEC-DOCUMENT>