Ciena CORP (CIEN) — SEC Filings

Overview

Ciena CORP (CIEN) is a publicly traded company tracked on ReadTheFiling. The most recent enriched filing is a 10-K filed on Dec 12, 2025: Ciena Corporation reported its 10-K filing for the fiscal year ended November 1, 2025, highlighting its position as a network technology company providing hardware, software, and services. The company's strategy focuses on expanding its global leadership in optical networking and growing into comple

Sentiment Summary

Across 28 filings, the sentiment breakdown is: 3 bullish, 24 neutral, 1 mixed. The dominant filing sentiment for Ciena CORP is neutral.

Filing Type Overview

Ciena CORP (CIEN) has filed 13 8-K, 2 10-K, 6 10-Q, 2 DEF 14A, 5 SC 13G/A with the SEC between Jan 2024 to Mar 2026.

Filings by Year

2026 · 2025 · 2024

Recent Filings (28)

• 8-K Filing — 8-K · Mar 31, 2026
• Ciena Eyes AI-Driven Growth, Expands Optical & Software Reach — 10-K · Dec 12, 2025 Risk: medium
  Ciena Corporation reported its 10-K filing for the fiscal year ended November 1, 2025, highlighting its position as a network technology company providing hardw
• 8-K Filing — 8-K · Dec 11, 2025
• 8-K Filing — 8-K · Dec 4, 2025
• Ciena Corp Files 8-K for Other Events — 8-K · Oct 7, 2025 Risk: low
  On October 7, 2025, Ciena Corporation filed an 8-K report to disclose other events. The filing does not contain specific details about the nature of these event
• Ciena Corp Files 8-K: Other Events & Financials — 8-K · Sep 22, 2025 Risk: low
  Ciena Corporation filed an 8-K on September 22, 2025, reporting "Other Events" and "Financial Statements and Exhibits." The filing does not detail specific even
• Ciena's Q3 Net Income Soars 253% on Strong Product Demand — 10-Q · Sep 4, 2025 Risk: medium
  CIENA CORP reported a significant increase in net income and revenue for the quarter ended August 2, 2025. Net income surged to $50.308 million, a 253.5% increa
• Ciena Corp Reports Director Changes and Executive Compensation Updates — 8-K · Jun 18, 2025 Risk: medium
  On June 18, 2025, Ciena Corporation filed an 8-K report detailing changes in its board of directors and executive compensation arrangements. The filing indicate
• Ciena's Q2 Revenue Dips Amidst Product Slowdown, Services Grow — 10-Q · Jun 5, 2025 Risk: medium
  CIENA CORP reported a mixed financial performance for the quarter ended May 3, 2025. Total revenue for the three months ended May 3, 2025, was $1.02 billion, a
• Ciena Corp Files 8-K on Security Holder Vote — 8-K · Apr 1, 2025 Risk: low
  On March 27, 2025, Ciena Corporation filed an 8-K report detailing a submission of matters to a vote of security holders. The filing does not contain specific d
• Ciena Corp. Files 10-Q for Period Ending Feb 1, 2025 — 10-Q · Mar 12, 2025 Risk: medium
  Ciena Corp. filed its 10-Q for the period ending February 1, 2025. The filing details financial performance and operational updates for the company. Specific fi
• Ciena Corp Files 8-K on Financials — 8-K · Mar 11, 2025 Risk: low
  On March 11, 2025, Ciena Corporation filed an 8-K report. The filing primarily concerns the company's results of operations and financial condition, as well as
• Ciena Corp: $4.01B Revenue, AI-Driven Growth, New Chipset — DEF 14A · Feb 13, 2025 Risk: medium
  Ciena Corporation reported $4.01 billion in revenue for fiscal year 2024, driven by strong performance from cloud provider customers investing in network upgrad
• Ciena Corp Enters Material Definitive Agreement — 8-K · Jan 21, 2025 Risk: medium
  On January 17, 2025, Ciena Corporation entered into a material definitive agreement, likely related to financial obligations. The filing indicates the creation
• Ciena Corp. Files 2024 Annual Report — 10-K · Dec 20, 2024 Risk: medium
  Ciena Corp. filed its 10-K for the fiscal year ending November 2, 2024, reporting on its financial performance and business operations. The company, headquarter
• Ciena Corp Files 8-K: Financials, Board Changes, Bylaw Amendments — 8-K · Dec 12, 2024 Risk: medium
  Ciena Corporation filed an 8-K on December 12, 2024, reporting on its results of operations and financial condition. The filing also disclosed changes in its bo
• SC 13G/A Filing — SC 13G/A · Nov 12, 2024
• Ciena Corp Files 8-K: Financial Statements & Exhibits — 8-K · Oct 2, 2024 Risk: low
  On October 2, 2024, Ciena Corporation filed an 8-K report. The filing primarily concerns financial statements and exhibits, indicating a routine update or discl
• Ciena Corp. Files Q3 2024 10-Q — 10-Q · Sep 4, 2024 Risk: low
  Ciena Corp. filed its 10-Q for the period ending July 27, 2024, reporting on its financial performance. The company's fiscal year ends on November 2nd. Key fina
• Ciena Corp. Files 10-Q for Q2 2024 — 10-Q · Jun 6, 2024 Risk: low
  Ciena Corp. filed its 10-Q for the period ending April 27, 2024, reporting on its financial performance. The company's fiscal year ends on November 2nd. Key fin
• Ciena Corp Appoints Scott McFeely to Lead Global Operations — 8-K · Apr 23, 2024 Risk: low
  On April 22, 2024, Ciena Corporation (CIEN) announced the appointment of Scott McFeely as Senior Vice President, Global Operations and Supply Chain, effective i
• Ciena Corp: Executive Departures and Board Changes — 8-K · Mar 26, 2024 Risk: medium
  On March 21, 2024, Ciena Corporation (CIEN) announced the departure of two key executives: Scott G. McFeely, Senior Vice President, Product and Technology, and
• Ciena Corp. Files 10-Q for Period Ending January 27, 2024 — 10-Q · Mar 7, 2024 Risk: medium
  CIENA CORP (CIEN) filed a Quarterly Report (10-Q) with the SEC on March 7, 2024. Ciena Corp. filed its quarterly report on Form 10-Q for the period ended Januar
• Vanguard Discloses 9.8% Stake in Ciena Corp as of Dec 29, 2023 — SC 13G/A · Feb 13, 2024 Risk: low
  The Vanguard Group, a major investment firm, filed an amended SC 13G/A on February 13, 2024, disclosing its ownership in Ciena Corp. As of December 29, 2023, Va
• FMR LLC & Abigail Johnson Hold 10.155% Stake in CIENA CORP — SC 13G/A · Feb 12, 2024 Risk: low
  FMR LLC, a major investment firm, and its principal owner, Abigail P. Johnson, have filed an amendment to their SC 13G, revealing they beneficially own 14,726,3
• FMR LLC & Abigail Johnson Hold 7.814% Stake in CIENA CORP — SC 13G/A · Feb 9, 2024 Risk: low
  FMR LLC, a major investment firm, and its principal owner, Abigail P. Johnson, have updated their ownership stake in CIENA CORP. As of February 9, 2024, they co
• Ciena Corp. Files Definitive Proxy Statement (DEF 14A) — DEF 14A · Feb 8, 2024 Risk: low
  CIENA CORP (CIEN) filed a Proxy Statement (DEF 14A) with the SEC on February 8, 2024. Ciena Corp. filed a Definitive Proxy Statement (DEF 14A) on February 8, 20
• BlackRock Amends CIENA Stake, Signals Continued Institutional Interest — SC 13G/A · Jan 30, 2024
  BlackRock Inc. filed an amended SC 13G/A on January 30, 2024, indicating its ownership of CIENA CORPORATION's Common Stock as of December 31, 2023. This filing,

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