---
schema_version: "secwatch.filing_event.v1"
accession: "0001193125-26-204995"
form_type: "8-K"
ticker: "ADTN"
cik: "0000926282"
company_name: "ADTRAN Holdings, Inc."
filed_at: "2026-05-05T23:59:59+00:00"
generated_at: "2026-05-14T23:44:25.936744+00:00"
event_type: "earnings"
sentiment: "positive"
materiality_score: 0.7
calibrated_materiality_score: 0.7
confidence: "high"
source: SEC EDGAR
---

# ADTRAN Q1 revenue $286.1M (+15.5% YoY); non-GAAP EPS $0.14; guides Q2 rev $283-303M

## Summary
- Revenue $286.1M (+15.5% YoY); GAAP diluted loss $0.01; non-GAAP diluted EPS $0.14.
- GAAP gross margin 39.5%; non-GAAP gross margin 43.0% (up 108/55 bps YoY).
- Q2 2026 outlook: revenue $283M-$303M; non-GAAP operating margin 5%-9%.
- Introduced LiteWave800 for AI intra-data center; BEAD funds and European vendor displacement cited as demand drivers.
- Net cash from operations $12.7M; cash and equivalents $88.3M.

## SEC filing metadata
- accession: 0001193125-26-204995
- form_type: 8-K
- ticker: ADTN
- cik: 0000926282
- company_name: ADTRAN Holdings, Inc.
- filed_at: 2026-05-05T23:59:59+00:00
- event_type: earnings
- sentiment: positive
- materiality_score: 0.7
- calibrated_materiality_score: 0.7
- confidence: high
- sec_items: 2.02, 7.01, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/926282/000119312526204995/0001193125-26-204995-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/926282/000119312526204995/adtn-20260504.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001193125-26-204995
- JSON: https://secwatch.observer/filing/0001193125-26-204995.json
- Plain text: https://secwatch.observer/filing/0001193125-26-204995.txt

## Key facts
- Earnings Releases
  ADTRAN Holdings, Inc. reported the first quarter ended March 31, 2026 results: revenue $286.1 million, EPS GAAP diluted loss per share of $0.01; non-GAAP diluted earnings per share of $0.14. Guidance initiated.
  - Period: the first quarter ended March 31, 2026
  - Revenue: $286.1 million
  - EPS: GAAP diluted loss per share of $0.01; non-GAAP diluted earnings per share of $0.14
  - Guidance: initiated
  - Result: reported results
  source text: (NASDAQ: ADTN and FSE: QH9) (“ADTRAN Holdings” “ADTRAN” or the “Company”) today announced its unaudited financial results for the first quarter ended March 31, 2026. • Revenue: $286.1 million, up 15.5% year-over-year. • GAAP gross margin of 39.5%; Non-GAAP gross margin of 43.0%; up 108 and 55 basis points year-over-year, respectively. • Operating margin: GAAP
  evidence_url: https://www.sec.gov/Archives/edgar/data/926282/000119312526204995/0001193125-26-204995-index.htm

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