10-K

Company

CIENA CORP

Filed

December 12, 2025

Period of Report

November 1, 2025

Accession Number

0001628280-25-056698

A 10-K is a company's comprehensive annual report, required by the SEC. It includes audited financial statements, a description of the business, risk factors, and management's discussion of results. Learn more about 10-K filings →