10-K

Company

CIENA CORP

Filed

December 18, 2020

Period of Report

October 31, 2020

Accession Number

0000936395-20-000042

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 →