---
schema_version: "secwatch.filing_event.v1"
accession: "0001193125-26-331458"
form_type: "8-K"
ticker: "ADTN"
cik: "0000926282"
company_name: "ADTRAN Holdings, Inc."
filed_at: "2026-08-04T10:36:52+00:00"
generated_at: "2026-08-04T10:40:16.293665+00:00"
event_type: "earnings"
sentiment: "neutral"
materiality_score: 0.65
calibrated_materiality_score: 0.65
confidence: "high"
source: SEC EDGAR
---

# ADTRAN Q2 revenue $281.1M (+6.1% YoY); GAAP EPS -$0.13, non-GAAP EPS $0.04; guides Q3 rev $275-295M

## Summary
- Revenue $281.1M, up 6.1% YoY; GAAP gross margin 37.0%, non-GAAP 40.7%.
- GAAP diluted loss per share $0.13; non-GAAP diluted EPS $0.04.
- Operating cash flow $25.9M; cash and equivalents $79.2M.
- Q3 2026 guidance: revenue $275M-$295M, non-GAAP operating margin 1.5%-5.5%.
- Cloud/hyperscaler/enterprise/government revenue grew 47% YoY; optical networking led demand.

## SEC filing metadata
- accession: 0001193125-26-331458
- form_type: 8-K
- ticker: ADTN
- cik: 0000926282
- company_name: ADTRAN Holdings, Inc.
- filed_at: 2026-08-04T10:36:52+00:00
- event_type: earnings
- sentiment: neutral
- materiality_score: 0.65
- calibrated_materiality_score: 0.65
- confidence: high
- sec_items: 2.02, 7.01, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/926282/000119312526331458/0001193125-26-331458-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/926282/000119312526331458/adtn-20260803.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001193125-26-331458
- JSON: https://secwatch.observer/filing/0001193125-26-331458.json
- Plain text: https://secwatch.observer/filing/0001193125-26-331458.txt

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