---
schema_version: "secwatch.filing_event.v1"
accession: "0001193125-23-289895"
form_type: "8-K"
ticker: "ADTN"
cik: "0000926282"
company_name: "ADTRAN Holdings, Inc."
filed_at: "2023-12-06T23:59:59+00:00"
generated_at: "2026-06-07T17:40:27.473474+00:00"
event_type: "leadership"
sentiment: "neutral"
materiality_score: 0.5
calibrated_materiality_score: 0.5
confidence: "high"
source: SEC EDGAR
---

# ADTRAN SVP of Services Ronald Centis to depart Dec 15; severance includes $349K cash, RSU acceleration

## Summary
- Ronald Centis, SVP of Services, departs effective December 15, 2023.
- Severance: lump-sum $349,397 (52 weeks salary) plus $36,605 for medical premiums.
- Accelerated vesting of 15,821 unvested RSUs; other unvested awards forfeited.
- 18-month non-compete with competitors including Calix, Ciena, Nokia, Huawei.
- Agreement includes general release of claims and non-disparagement covenants.

## SEC filing metadata
- accession: 0001193125-23-289895
- form_type: 8-K
- ticker: ADTN
- cik: 0000926282
- company_name: ADTRAN Holdings, Inc.
- filed_at: 2023-12-06T23:59:59+00:00
- event_type: leadership
- sentiment: neutral
- materiality_score: 0.5
- calibrated_materiality_score: 0.5
- confidence: high
- sec_items: 5.02, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/926282/000119312523289895/0001193125-23-289895-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/926282/000119312523289895/d605940d8k.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001193125-23-289895
- JSON: https://secwatch.observer/filing/0001193125-23-289895.json
- Plain text: https://secwatch.observer/filing/0001193125-23-289895.txt

## Key facts
- Executive change
  Ronald D. Centis departed as Senior Vice President of Services at ADTRAN Holdings, Inc..
  - Action: departed
  - Role: Senior Vice President of Services
  source text: Mr. Ronald D. Centis, Senior Vice President of Services and a named executive officer of the Company (as identified in the Company’s definitive proxy statement on Schedule 14A filed on March 28, 2023), will depart from the Company, effective December 15, 2023 (the “ Separation Date ”).
  evidence_url: https://www.sec.gov/Archives/edgar/data/926282/000119312523289895/0001193125-23-289895-index.htm

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