# Filing Detail

Form 8-K - Current report:
SEC Accession No. 0001193125-26-267607
Filing Date
2026-06-11
Accepted
2026-06-11 16:21:49
Documents
23
Period of Report
2026-06-08
Items
Item 1.01: Entry into a Material Definitive Agreement
Item 2.03: Creation of a Direct Financial Obligation or an Obligation under an Off-Balance Sheet Arrangement of a Registrant
Item 3.02: Unregistered Sales of Equity Securities
Item 8.01: Other Events
Item 9.01: Financial Statements and Exhibits

Document Format Files

Seq | Description | Document | Type | Size
--- | --- | --- | --- | ---
1 | 8-K | d118604d8k.htm iXBRL | 8-K | 51650
2 | EX-4.1 | d118604dex41.htm | EX-4.1 | 656345
3 | EX-10.1 | d118604dex101.htm | EX-10.1 | 235166
4 | EX-10.2 | d118604dex102.htm | EX-10.2 | 203165
5 | EX-10.3 | d118604dex103.htm | EX-10.3 | 1250771
6 | EX-99.1 | d118604dex991.htm | EX-99.1 | 16821
10 | GRAPHIC | g118604g0611003432806.jpg | GRAPHIC | 2619
11 | GRAPHIC | g118604g0611003433451.jpg | GRAPHIC | 3297
12 | GRAPHIC | g118604g0611003433751.jpg | GRAPHIC | 3160
13 | GRAPHIC | g118604g0611003434034.jpg | GRAPHIC | 3363
14 | GRAPHIC | g118604g0611003434332.jpg | GRAPHIC | 3920
15 | GRAPHIC | g118604g0611003825034.jpg | GRAPHIC | 3204
16 | GRAPHIC | g118604snap1.jpg | GRAPHIC | 4290
| Complete submission text file | 0001193125-26-267607.txt |  | 3105023

Data Files

Seq | Description | Document | Type | Size
--- | --- | --- | --- | ---
7 | XBRL TAXONOMY EXTENSION SCHEMA | cien-20260608.xsd | EX-101.SCH | 3171
8 | XBRL TAXONOMY EXTENSION LABEL LINKBASE | cien-20260608_lab.xml | EX-101.LAB | 17233
9 | XBRL TAXONOMY EXTENSION PRESENTATION LINKBASE | cien-20260608_pre.xml | EX-101.PRE | 10806
27 | EXTRACTED XBRL INSTANCE DOCUMENT | d118604d8k_htm.xml | XML | 3516

Mailing Address 7035 RIDGE ROAD HANOVER MD 21076
Business Address 7035 RIDGE ROAD HANOVER MD 21076 4108658500
CIENA CORP (Filer) CIK: 0000936395 (see all company filings)

EIN.: 232725311 | State of Incorp.: MD | Fiscal Year End: 1031
Type: 8-K | Act: 34 | File No.: 001-36250 | Film No.: 261083354
SIC: 3661 Telephone & Telegraph Apparatus
(CF Office: 04 Manufacturing)