---
schema_version: "secwatch.filing_event.v1"
accession: "0001193125-24-130896"
form_type: "8-K"
ticker: "ADTN"
cik: "0000926282"
company_name: "ADTRAN Holdings, Inc."
filed_at: "2024-05-03T23:59:59+00:00"
generated_at: "2026-06-02T23:39:54.179160+00:00"
event_type: "other_material"
sentiment: "negative"
materiality_score: 0.75
calibrated_materiality_score: 0.75
confidence: "high"
source: SEC EDGAR
---

# ADTRAN expects $293M Q1 2024 goodwill impairment in Network Solutions segment

## Summary
- Non-cash goodwill impairment of $293M for Network Solutions segment in Q1 2024.
- Impairment triggered by decline in market cap, cautious spending, and inventory adjustments.
- Increases GAAP operating loss but has no impact on cash flow or non-GAAP operating margin.
- No effect on credit agreement covenants or GAAP revenue guidance.
- Determined after quantitative impairment assessment of goodwill carrying value.

## SEC filing metadata
- accession: 0001193125-24-130896
- form_type: 8-K
- ticker: ADTN
- cik: 0000926282
- company_name: ADTRAN Holdings, Inc.
- filed_at: 2024-05-03T23:59:59+00:00
- event_type: other_material
- sentiment: negative
- 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/926282/000119312524130896/0001193125-24-130896-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/926282/000119312524130896/d835183d8k.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001193125-24-130896
- JSON: https://secwatch.observer/filing/0001193125-24-130896.json
- Plain text: https://secwatch.observer/filing/0001193125-24-130896.txt

## Key facts
- Earnings Releases
  ADTRAN Holdings, Inc. reported preliminary financial results for first quarter of 2024.
  - Period: first quarter of 2024
  - Result: preliminary results
  source text: ADTRAN Holdings, Inc.: Non-cash goodwill impairment for the first quarter 2024 in an estimated amount of $293 million
  evidence_url: https://www.sec.gov/Archives/edgar/data/926282/000119312524130896/0001193125-24-130896-index.htm

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