---
schema_version: "secwatch.filing_event.v1"
accession: "0000936395-25-000005"
form_type: "8-K"
ticker: "CIEN"
cik: "0000936395"
company_name: "CIENA CORP"
filed_at: "2025-03-11T23:59:59+00:00"
generated_at: "2026-05-25T00:36:16.811257+00:00"
event_type: "earnings"
sentiment: "neutral"
materiality_score: 0.7
calibrated_materiality_score: 0.7
confidence: "high"
source: SEC EDGAR
---

# Ciena Q1 revenue $1.07B (+3.3% YoY); adjusted EPS $0.64 vs $0.66; GAAP EPS $0.31

## Summary
- Revenue $1.07B, up 3.3% YoY; GAAP net income $44.6M ($0.31 diluted EPS) vs $49.5M ($0.34) prior year.
- Adjusted (non-GAAP) net income $94.0M ($0.64 diluted EPS) vs $96.8M ($0.66) in Q1 FY2024.
- Optical networking revenue $728M (+4.6% YoY); Routing and Switching down 16.3% to $93.2M.
- Americas revenue up 10.8% to $795.7M (74.2% of total); EMEA down 23.9% to $157.9M.
- Repurchased ~1.0M shares for $79.2M; cash & investments $1.32B; operating cash flow $103.7M.

## SEC filing metadata
- accession: 0000936395-25-000005
- form_type: 8-K
- ticker: CIEN
- cik: 0000936395
- company_name: CIENA CORP
- filed_at: 2025-03-11T23:59:59+00:00
- event_type: earnings
- sentiment: neutral
- materiality_score: 0.7
- calibrated_materiality_score: 0.7
- confidence: high
- sec_items: 2.02, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/936395/000093639525000005/0000936395-25-000005-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/936395/000093639525000005/cien-20250311.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0000936395-25-000005
- JSON: https://secwatch.observer/filing/0000936395-25-000005.json
- Plain text: https://secwatch.observer/filing/0000936395-25-000005.txt

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