8-KThe WireRed Alert
Executive Change · Company Update
Filed Jun 26, 2026 · 4d ago · Accession 0001193125-26-283882
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
- Jun 26, 2026
- Report date
- Jun 23, 2026
- Document
- adtn-20260623.htm
- Size
- 162 KB