---
schema_version: "secwatch.filing_event.v1"
accession: "0001193125-23-085151"
form_type: "8-K"
ticker: "ADTN"
cik: "0000926282"
company_name: "ADTRAN Holdings, Inc."
filed_at: "2023-03-30T23:59:59+00:00"
generated_at: "2026-06-17T09:55:22.235475+00:00"
event_type: "leadership"
sentiment: "neutral"
materiality_score: 0.6
calibrated_materiality_score: 0.6
confidence: "high"
source: SEC EDGAR
---

# ADTRAN Holdings CFO Michael Foliano to retire; Ulrich Dopfer appointed as new CFO effective May 1, 2023

## Summary
- Michael Foliano to retire as CFO effective June 28, 2023; will serve until April 30, 2023.
- Ulrich Dopfer, currently CFO of ADVA (majority-owned subsidiary), appointed CFO effective May 1, 2023.
- Dopfer's base salary set at $300,000; bonus and equity subject to ADVA compensation system pending shareholder approval.
- Dopfer holds assumed options to purchase ADTN shares converted from ADVA options in July 2022 exchange offer.
- No family relationships or related party transactions with Dopfer.

## SEC filing metadata
- accession: 0001193125-23-085151
- form_type: 8-K
- ticker: ADTN
- cik: 0000926282
- company_name: ADTRAN Holdings, Inc.
- filed_at: 2023-03-30T23:59:59+00:00
- event_type: leadership
- sentiment: neutral
- materiality_score: 0.6
- calibrated_materiality_score: 0.6
- confidence: high
- sec_items: 5.02, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/926282/000119312523085151/0001193125-23-085151-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/926282/000119312523085151/d446533d8k.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001193125-23-085151
- JSON: https://secwatch.observer/filing/0001193125-23-085151.json
- Plain text: https://secwatch.observer/filing/0001193125-23-085151.txt

## Key facts
- Executive change
  Michael Foliano retired as Senior Vice President of Finance and Chief Financial Officer at ADTRAN Holdings, Inc..
  - Action: retired
  - Role: Senior Vice President of Finance and Chief Financial Officer
  source text: On March 27, 2023, Michael Foliano, Senior Vice President of Finance and Chief Financial Officer of ADTRAN Holdings, Inc. (the “Company”), notified the Company of his intent to retire from the Company, effective June 28, 2023
  evidence_url: https://www.sec.gov/Archives/edgar/data/926282/000119312523085151/0001193125-23-085151-index.htm
- Executive change
  Ulrich Dopfer was appointed as Chief Financial Officer at ADTRAN Holdings, Inc..
  - Action: appointed
  - Role: Chief Financial Officer
  source text: on March 27, 2023, the Board of Directors of the Company appointed Ulrich Dopfer as Chief Financial Officer of the Company, effective May 1, 2023
  evidence_url: https://www.sec.gov/Archives/edgar/data/926282/000119312523085151/0001193125-23-085151-index.htm

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