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CIENA CORP

For the period ended Nov 1, 2025. Filed Dec 12, 2025.

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About this filing

A company's yearly report to the SEC, with audited financial statements. It is the fullest account a company gives of its business, its finances and the risks it sees.

FY2025 · Filed Dec 12, 2025

CIEN$269.33+10.7%Stored close · as of Nov 9, 2026

Extracted filing text, with the paragraph anchors used by the comparison.

See the whole filing, with its images and exhibits
Contents

Table of Contents

ANNUAL REPORT ON FORM 10-K

FOR FISCAL YEAR ENDED NOVEMBER 1, 2025

TABLE OF CONTENTS

Page
PART I
Item 1. Business4
Item 1A. Risk Factors14
Item 1B. Unresolved Staff Comments22
Item 1C. Cybersecurity22
Item 2. Properties24
Item 3. Legal Proceedings24
Item 4. Mine Safety Disclosures24
PART II
Item 5. Market for Registrant’s Common Stock, Related Stockholder Matters and Issuer Purchases of Equity Securities24
Item 6. [Reserved]25
Item 7. Management’s Discussion and Analysis of Financial Condition and Results of Operations26
Item 7A. Quantitative and Qualitative Disclosures about Market Risk38
Item 8. Financial Statements and Supplementary Data39
Item 9. Changes in and Disagreements with Accountants on Accounting and Financial Disclosure82
Item 9A. Controls and Procedures82
Item 9B. Other Information82
Item 9C. Disclosure Regarding Foreign Jurisdictions that Prevent Inspection84
PART III
Item 10. Directors, Executive Officers and Corporate Governance85
Item 11. Executive Compensation85
Item 12. Security Ownership of Certain Beneficial Owners and Management and Related Stockholder Matters85
Item 13. Certain Relationships and Related Transactions, and Director Independence85
Item 14. Principal Accountant Fees and Services85
PART IV
Item 15. Exhibits and Financial Statement Schedules86
Signatures87
Index to Exhibits88
ContentsView on SEC.gov

The text of this filing, as the company filed it with the SEC, without its images or exhibits. This is not investment advice.