Ciena Corporation Earnings Presentation

Q4 FY 2021 financial highlights* Revenue Adjusted Gross Margin* Adjusted Operating Expense* Adjusted Operating Margin* Adjusted EBITDA* Adjusted EPS* * A reconciliation of these non-GAAP measures to our GAAP results is included in the appendix to this presentation. Copyright © Ciena Corporation 2021. All rights reserved. Proprietary information. Q4 FY 2021 $1,041 M 46.3% $307M 16.8% $199M $0.85 Q4 FY 2020 $828M 49.5% $279M 15.8% $155M $0.60 ciena | 12

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