Ciena Corporation

Ciena Corporation

CIENยทNYSE

$620.37

-1.1%
TechnologyCommunication Equipment

Ciena Corporation provides network hardware, software, and services that support the transport, routing, switching, aggregation, service delivery, and management of video, data, and voice traffic on communications networks worldwide. The company's Networking Platforms segment offers hardware networking products and solutions that optimized for the convergence of coherent optical transport, optical transport network switching, and packet switching. Its products include 6500 Packet-Optical Platform, 5430 Reconfigurable Switching System, Waveserver stackable interconnect system, and the 6500 Reconfigurable line system, and the 5400 family of Packet-Optical platforms, as well as Z-Series Packet-Optical Platform; 3000 family of service delivery switches and service aggregation switches, and the 5000 family of service aggregation switches, as well as 8700 Packetwave Platform and the Ethernet packet configuration for the 5410 Service Aggregation Switch; and 6500 Packet Transport System. This segment also sells operating system software and enhanced software features embedded in each of its products. The company's Blue Planet Automation Software and Services segment provides multi-domain service orchestration, inventory, route optimization and analysis, network function virtualization orchestration, analytics, and related services. Its Platform Software and Service segment offers OneControl unified management system and platform software services, as well as manage, control, and plan software. The company's Global Services segment provides consulting and network design, installation and deployment, maintenance support, and training services. The company sells its products through direct and indirect sales channels to network operators. Ciena Corporation was founded in 1992 and is headquartered in Hanover, Maryland.

At a Glance

Live Snapshot
Market Cap$87.72B
EPS0.8700
P/E Ratio713.07
Earnings Date06/04/2026

SEC Filings

CIEN - Filing history and reports

Filing TypeFiling DatePeriod EndingFiscal YearActions
8-K

8-K 2026

N/A

March 31, 2026
March 26, 2026
2026
10-Q

10-Q 2026 Q1

Q1

March 05, 2026
January 31, 2026
2026
8-K

8-K 2026

N/A

March 05, 2026
March 05, 2026
2026
DEF 14A

DEF 14A 2026

N/A

February 12, 2026
March 26, 2026
2026
10-K

10-K 2025 FY

FY

December 12, 2025
November 01, 2025
2025
8-K

8-K 2025

N/A

December 11, 2025
December 11, 2025
2025
8-K

8-K 2025

N/A

December 04, 2025
November 30, 2025
2025
8-K

8-K 2025

N/A

October 07, 2025
October 07, 2025
2025
8-K

8-K 2025

N/A

September 22, 2025
September 22, 2025
2025
10-Q

10-Q 2025 Q3

Q3

September 04, 2025
August 02, 2025
2025
Showing 1 to 10 of 460 filings

Understanding SEC Filings

Essential regulatory documents for investors

SEC filings are mandatory documents that publicly traded companies must submit to the Securities and Exchange Commission. These reports provide critical insights into a company's financial health, operations, risks, and strategic direction. For investors conducting due diligence, these filings are the most authoritative source of company information.

10-K

Annual Report

Comprehensive annual financial report filed within 60-90 days of fiscal year-end. Includes audited financial statements, management discussion & analysis (MD&A), risk factors, and detailed business operations. The most thorough financial disclosure of the year.

Filed annually
10-Q

Quarterly Report

Unaudited quarterly financial report filed within 40-45 days after each of the first three fiscal quarters. Provides updates on financial position, results of operations, and significant events. Essential for tracking quarterly performance trends.

Filed 3 times per year
8-K

Current Report

Event-driven filing for material events that shareholders should know about, filed within 4 business days. Includes acquisitions, executive changes, bankruptcy, earnings releases, and other significant developments. Critical for staying informed about breaking news.

Filed as events occur
DEF 14A

Proxy Statement

Definitive proxy statement sent to shareholders before annual meetings. Contains executive compensation details, board member information, voting matters, and corporate governance policies. Key for understanding management incentives and board composition.

Filed before shareholder meetings
S-1

Registration Statement

Initial registration for securities offerings, including IPOs. Provides detailed company history, business model, financial statements, risk factors, and use of proceeds. Essential for evaluating new investment opportunities and understanding company fundamentals.

Filed for new offerings
20-F

Foreign Annual Report

Annual report for foreign private issuers, equivalent to Form 10-K for non-U.S. companies. Filed within 4-6 months of fiscal year-end. Contains audited financials, business description, and regulatory disclosures adapted for international companies.

Foreign companies only

Why SEC Filings Matter

  • Regulatory Accuracy: Filings are subject to SEC review and legal penalties for misstatements, ensuring high data quality
  • Management Insights: MD&A sections reveal management's perspective on trends, challenges, and future outlook
  • Risk Assessment: Detailed risk factor disclosures help investors understand potential threats to business operations
  • Competitive Analysis: Business descriptions and segment data enable comparison with industry peers
  • Historical Context: Years of filings provide trend analysis and context for current performance