---
schema_version: "secwatch.filing_event.v1"
accession: "0000950170-21-002053"
form_type: "8-K"
ticker: "ADTN"
cik: "0000926282"
company_name: "ADTRAN Holdings, Inc."
filed_at: "2021-10-07T23:59:59+00:00"
generated_at: "2026-06-28T22:26:17.413670+00:00"
event_type: "leadership"
sentiment: "neutral"
materiality_score: 0.55
calibrated_materiality_score: 0.55
confidence: "high"
source: SEC EDGAR
---

# ADTRAN SVP of R&D Eduard Scheiterer to retire effective Nov 30, 2021

## Summary
- Eduard Scheiterer, SVP of R&D and Managing Director of ADTRAN GmbH, gave notice of retirement.
- Retirement effective November 30, 2021; no successor announced yet.
- Scheiterer oversaw R&D for ADTRAN and its German subsidiary.
- Departure is a planned retirement, not an abrupt termination.

## SEC filing metadata
- accession: 0000950170-21-002053
- form_type: 8-K
- ticker: ADTN
- cik: 0000926282
- company_name: ADTRAN Holdings, Inc.
- filed_at: 2021-10-07T23:59:59+00:00
- event_type: leadership
- sentiment: neutral
- materiality_score: 0.55
- calibrated_materiality_score: 0.55
- confidence: high
- sec_items: 5.02
- EDGAR index: https://www.sec.gov/Archives/edgar/data/926282/000095017021002053/0000950170-21-002053-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/926282/000095017021002053/adtn-20211005.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0000950170-21-002053
- JSON: https://secwatch.observer/filing/0000950170-21-002053.json
- Plain text: https://secwatch.observer/filing/0000950170-21-002053.txt

## Key facts
- Executive change
  Eduard Scheiterer departed as Senior Vice President of Research and Development at ADTRAN Holdings, Inc..
  - Action: retire
  - Role: Senior Vice President of Research and Development
  source text: On October 5, 2021, Eduard Scheiterer, Senior Vice President of Research and Development of ADTRAN, Inc. (the “Company”) and Managing Director of the Company’s wholly-owned German subsidiary, ADTRAN GmbH (the “Subsidiary”), gave notice of his intention to retire from his positions with the Company and the Subsidiary, effective November 30, 2021.
  evidence_url: https://www.sec.gov/Archives/edgar/data/926282/000095017021002053/0000950170-21-002053-index.htm

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