# Filing Detail

Form 10-Q - Quarterly report [Sections 13 or 15(d)]:
SEC Accession No. 0001193125-25-264157
Filing Date
2025-11-04
Accepted
2025-11-04 13:28:57
Documents
112
Period of Report
2025-09-30

Document Format Files

Seq | Description | Document | Type | Size
--- | --- | --- | --- | ---
1 | 10-Q | adtn-20250930.htm iXBRL | 10-Q | 5281449
2 | EX-31.1 | adtn-ex31_1.htm | EX-31.1 | 13551
3 | EX-31.2 | adtn-ex31_2.htm | EX-31.2 | 12766
4 | EX-32 | adtn-ex32.htm | EX-32 | 15516
| Complete submission text file | 0001193125-25-264157.txt |  | 23854963

Data Files

Seq | Description | Document | Type | Size
--- | --- | --- | --- | ---
5 | XBRL TAXONOMY EXTENSION SCHEMA WITH EMBEDDED LINKBASES DOCUMENT | adtn-20250930.xsd | EX-101.SCH | 2214872
115 | EXTRACTED XBRL INSTANCE DOCUMENT | adtn-20250930_htm.xml | XML | 6223960

Mailing Address 901 EXPLORER BLVD HUNTSVILLE AL 35806
Business Address 901 EXPLORER BLVD HUNTSVILLE AL 35806 256-963-8220
ADTRAN Holdings, Inc. (Filer) CIK: 0000926282 (see all company filings)

EIN.: 872164282 | Fiscal Year End: 1231
Type: 10-Q | Act: 34 | File No.: 001-41446 | Film No.: 251447747
SIC: 3661 Telephone & Telegraph Apparatus
(CF Office: 04 Manufacturing)