# ADTRAN Holdings, Inc. (ADTN) SEC filings and CIK

Canonical: https://sec-api.dev/companies/adtn

> ADTN’s SEC CIK is 0000926282 (926282).

Insider transactions in the latest quarter: 4 (1 purchases, 0 sales). https://sec-api.dev/insider-trading/adtn

| Filed | Form | Filing |
| --- | --- | --- |
| 2026-10-30 | SCHEDULE 13G | https://www.sec.gov/Archives/edgar/data/926282/000210011926001542/0002100119-26-001542-index.htm |

API: GET https://sec-api.dev/api/v1/filings?cik=926282

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