---
schema_version: "secwatch.filing_event.v1"
accession: "0000950170-24-045151"
form_type: "8-K"
ticker: "ADTN"
cik: "0000926282"
company_name: "ADTRAN Holdings, Inc."
filed_at: "2024-04-17T23:59:59+00:00"
generated_at: "2026-06-03T22:00:07.917678+00:00"
event_type: "other_material"
sentiment: "negative"
materiality_score: 0.6
calibrated_materiality_score: 0.6
confidence: "high"
source: SEC EDGAR
---

# ADTRAN to close Greifswald, Germany facility; expects $13.5M-$18.4M in costs

## Summary
- Facility closure part of previously announced Business Efficiency Program; to be completed by June 30, 2024.
- Total estimated costs $13.5M-$18.4M, including $13.3M-$17.6M cash severance and outplacement, $0.7M-$1.3M lease exit, and $0.2M non-cash depreciation.
- Cash payments expected to span into 2025; all charges incurred in fiscal 2024.
- Management does not anticipate other charges or cash expenditures from the closure.

## SEC filing metadata
- accession: 0000950170-24-045151
- form_type: 8-K
- ticker: ADTN
- cik: 0000926282
- company_name: ADTRAN Holdings, Inc.
- filed_at: 2024-04-17T23:59:59+00:00
- event_type: other_material
- sentiment: negative
- materiality_score: 0.6
- calibrated_materiality_score: 0.6
- confidence: high
- sec_items: 2.05, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/926282/000095017024045151/0000950170-24-045151-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/926282/000095017024045151/adtn-20240411.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0000950170-24-045151
- JSON: https://secwatch.observer/filing/0000950170-24-045151.json
- Plain text: https://secwatch.observer/filing/0000950170-24-045151.txt

## Key facts
- Restructurings & Charges
  ADTRAN Holdings, Inc. announced a restructuring with charges of $13.5 million to $18.4 million affecting Greifswald, Germany facility.
  - Type: restructuring
  - Charge: $13.5 million to $18.4 million
  - Affected area: Greifswald, Germany facility
  source text: management of the Company determined on April 11, 2024 to close the Company’s facility in Greifswald, Germany (the “Facility”), within the next three months. The Company currently expects to incur total costs ranging from approximately $13.5 million to $18.4 million in connection with the closure of the facility.
  evidence_url: https://www.sec.gov/Archives/edgar/data/926282/000095017024045151/0000950170-24-045151-index.htm

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