---
schema_version: "secwatch.filing_event.v1"
accession: "0000936395-24-000037"
form_type: "8-K"
ticker: "CIEN"
cik: "0000936395"
company_name: "CIENA CORP"
filed_at: "2024-12-12T23:59:59+00:00"
generated_at: "2026-05-29T04:34:36.437010+00:00"
event_type: "earnings"
sentiment: "negative"
materiality_score: 0.75
calibrated_materiality_score: 0.75
confidence: "high"
source: SEC EDGAR
---

# Ciena Q4 revenue $1.12B, GAAP EPS $0.25, adjusted EPS $0.54; Exec Chair Nettles to retire, Fitt new Chair

## Summary
- Q4 revenue $1.124B (-0.5% YoY); GAAP EPS $0.25, adjusted EPS $0.54 (vs $0.62 and $0.75 YoY).
- FY2024 revenue $4.015B (-8.5% YoY); GAAP EPS $0.58, adjusted EPS $1.82 (vs $1.71 and $2.72). Repurchased 2.1M shares for $132M.
- Patrick Nettles stepped down as Exec Chair, will retire after 2025 meeting; Lawton Fitt appointed independent Chair; CFO Moylan to assume principal accounting officer role.
- Optical Networking segment revenue $779.6M (+4.2% YoY); Routing & Switching $79.4M (-38.4%). Cash from ops $514.5M for FY.

## SEC filing metadata
- accession: 0000936395-24-000037
- form_type: 8-K
- ticker: CIEN
- cik: 0000936395
- company_name: CIENA CORP
- filed_at: 2024-12-12T23:59:59+00:00
- event_type: earnings
- sentiment: negative
- materiality_score: 0.75
- calibrated_materiality_score: 0.75
- confidence: high
- sec_items: 2.02, 5.02, 5.03, 7.01, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/936395/000093639524000037/0000936395-24-000037-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/936395/000093639524000037/a8-k2024q4earningsresults.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0000936395-24-000037
- JSON: https://secwatch.observer/filing/0000936395-24-000037.json
- Plain text: https://secwatch.observer/filing/0000936395-24-000037.txt

## Key facts
- Governance Changes
  CIENA CORP: Amended and Restated Bylaws to clarify procedural mechanics and disclosure requirements for stockholder nominations and proposals, and make administrative and ministerial language updates (effective 2024-12-11).
  - Change: bylaw amendment
  - Effective: 2024-12-11
  source text: On December 11, 2024, in connection with a periodic review of Ciena's bylaws, the Board adopted and approved Ciena’s Amended and Restated Bylaws (the “Amended Bylaws”). The amendments contained in the Amended Bylaws (i) clarify procedural mechanics and disclosure requirements in connection with stockholder nominations of directors and submission of stockholder proposals made in connection with annual and special meetings of stockholders, and (ii) make administrative and ministerial language updates.
  evidence_url: https://www.sec.gov/Archives/edgar/data/936395/000093639524000037/0000936395-24-000037-index.htm

This AI-assisted summary is a reading aid. Review the linked SEC EDGAR filing before relying on any specific claim.