---
schema_version: "secwatch.filing_event.v1"
accession: "0000936395-25-000037"
form_type: "8-K"
ticker: "CIEN"
cik: "0000936395"
company_name: "CIENA CORP"
filed_at: "2025-09-04T23:59:59+00:00"
generated_at: "2026-05-17T08:25:26.110466+00:00"
event_type: "earnings"
sentiment: "positive"
materiality_score: 0.75
calibrated_materiality_score: 0.75
confidence: "high"
source: SEC EDGAR
---

# Ciena Q3 FY2025 revenue up 29% to $1.22B; GAAP EPS $0.35, adjusted EPS $0.67

## Summary
- GAAP net income $50.3M ($0.35/diluted share) vs $14.2M ($0.10) a year ago; adjusted net income $96.2M ($0.67).
- Revenue $1.22B (+29.4% YoY); Optical Networking $815.5M (66.9%), Routing & Switching $125.9M.
- Operating cash flow $174.3M; cash and investments $1.39B; repurchased ~1M shares for $81.8M.
- CEO highlights accelerated customer demand for high-speed connectivity and AI; visibility well into FY2026.

## SEC filing metadata
- accession: 0000936395-25-000037
- form_type: 8-K
- ticker: CIEN
- cik: 0000936395
- company_name: CIENA CORP
- filed_at: 2025-09-04T23:59:59+00:00
- event_type: earnings
- sentiment: positive
- materiality_score: 0.75
- calibrated_materiality_score: 0.75
- confidence: high
- sec_items: 2.02, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/936395/000093639525000037/0000936395-25-000037-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/936395/000093639525000037/cien-20250904.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0000936395-25-000037
- JSON: https://secwatch.observer/filing/0000936395-25-000037.json
- Plain text: https://secwatch.observer/filing/0000936395-25-000037.txt

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