SEC Form 4 · accession 0001193125-26-342317
ADTRAN Holdings, Inc. · ADTN
Statement of changes in beneficial ownership, as filed. Original on EDGAR ↗
Reporting owner
Christoph Glingener
Officer — Chief Technology Officer
Period of report
Aug 10, 2026
Accepted (ET)
Aug 10, 2026 · 4:01 pm EDT
Rule 10b5-1 plan
box not checked
Issuer CIK
0000926282
Table I — non-derivative securities
| Security | Date | Code | Shares | Price | A/D | Owned after | D/I | Nature of ownership |
|---|---|---|---|---|---|---|---|---|
| Common Stock | Aug 10, 2026 | A | 27,924 | $0.00 | A | 83,953 | D |
Table II — derivative securities
No Table II lines on this filing.