---
schema_version: "secwatch.filing_event.v1"
accession: "0000950170-25-066343"
form_type: "8-K"
ticker: "ADTN"
cik: "0000926282"
company_name: "ADTRAN Holdings, Inc."
filed_at: "2025-05-08T23:59:59+00:00"
generated_at: "2026-05-22T06:30:46.654121+00:00"
event_type: "earnings"
sentiment: "positive"
materiality_score: 0.75
calibrated_materiality_score: 0.75
confidence: "high"
source: SEC EDGAR
---

# ADTRAN Q1 revenue $247.7M (+10% YoY); non-GAAP EPS $0.03, GAAP loss $0.13

## Summary
- Revenue $247.7M, up 10% YoY and above midpoint of Q1 outlook; GAAP gross margin 38.5%, non-GAAP 42.6%.
- GAAP diluted loss per share $0.13; non-GAAP diluted EPS $0.03, reflecting improved operating efficiency.
- Operating cash flow $41.6M; cash & equivalents $101.3M, up $23.8M sequentially.
- Q2 2025 guidance: revenue $247.5M–$262.5M, non-GAAP operating margin 0%–4%.
- CEO highlights globally diverse supply chain and strong customer relationships to navigate trade policy shifts.

## SEC filing metadata
- accession: 0000950170-25-066343
- form_type: 8-K
- ticker: ADTN
- cik: 0000926282
- company_name: ADTRAN Holdings, Inc.
- filed_at: 2025-05-08T23:59:59+00:00
- event_type: earnings
- sentiment: positive
- materiality_score: 0.75
- calibrated_materiality_score: 0.75
- confidence: high
- sec_items: 2.02, 7.01, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/926282/000095017025066343/0000950170-25-066343-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/926282/000095017025066343/adtn-20250507.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0000950170-25-066343
- JSON: https://secwatch.observer/filing/0000950170-25-066343.json
- Plain text: https://secwatch.observer/filing/0000950170-25-066343.txt

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