8-KThe WireRed Alert
Executive Change
Filed Dec 11, 2025 · 6mo ago · Accession 0001193125-25-315910
Plain English
Material event — a significant development the company must disclose promptly.
Read the source below for the full document.
Filing details
- Company
- ADTRAN Holdings, Inc.
- Ticker
- ADTN
- CIK
- 926282
- Form type
- 8-K
- Filing date
- Dec 11, 2025
- Report date
- Dec 9, 2025
- Document
- adtn-20251209.htm
- Size
- 258 KB