SEC Form 4 · accession 0001193125-26-320947
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
Jul 24, 2026
Accepted (ET)
Jul 28, 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 | Jul 24, 2026 | A | 9,384 | $0.00 | A | 56,029 | D |
Table II — derivative securities
No Table II lines on this filing.
Explanation of responses
- F1These shares represent the vesting of performance stock units that were awarded pursuant to a grant on May 24, 2023 under the Amended and Restated ADTRAN Holdings, Inc. 2020 Employee Stock Incentive Plan.