Ciena Corporation Earnings Presentation

FY 2021 comparative financial highlights Revenue Adjusted Gross Margin* Adjusted Operating Expense* Adjusted Operating Margin* Adjusted EBITDA* Adjusted EPS* FY 2021 Copyright © Ciena Corporation 2021. All rights reserved. Proprietary information. $3.62B 47.9% $1.13B 16.8% $703M $2.91 *A reconciliation of these non-GAAP measures to our GAAP results is included in the press release for the relative period. FY 2020 $3.53B 47.4% $1.06B 17.6% $714M $2.95 ciena | 5

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