# Filing Detail

Form DEF 14A - Other definitive proxy statements:
SEC Accession No. 0000950170-25-047713
Filing Date
2025-03-31
Accepted
2025-03-31 16:12:14
Documents
63
Period of Report
2025-03-31

Document Format Files

Seq | Description | Document | Type | Size
--- | --- | --- | --- | ---
1 | DEF 14A | adtn-20250328.htm iXBRL | DEF 14A | 3835369
2 | GRAPHIC | img230347258_0.jpg | GRAPHIC | 221726
3 | GRAPHIC | img230347258_1.jpg | GRAPHIC | 63820
4 | GRAPHIC | img230347258_2.jpg | GRAPHIC | 20849
5 | GRAPHIC | img230347258_3.jpg | GRAPHIC | 55047
6 | GRAPHIC | img230347258_4.jpg | GRAPHIC | 54255
7 | GRAPHIC | img230347258_5.jpg | GRAPHIC | 56842
8 | GRAPHIC | img230347258_6.jpg | GRAPHIC | 52731
9 | GRAPHIC | img230347258_7.jpg | GRAPHIC | 109724
10 | GRAPHIC | img230347258_8.jpg | GRAPHIC | 26393
11 | GRAPHIC | img230347258_9.jpg | GRAPHIC | 148485
12 | GRAPHIC | img230347258_10.jpg | GRAPHIC | 26393
13 | GRAPHIC | img230347258_11.jpg | GRAPHIC | 26393
14 | GRAPHIC | img230347258_12.jpg | GRAPHIC | 26393
15 | GRAPHIC | img230347258_13.jpg | GRAPHIC | 22132
16 | GRAPHIC | img230347258_14.jpg | GRAPHIC | 22132
17 | GRAPHIC | img230347258_15.jpg | GRAPHIC | 22132
18 | GRAPHIC | img230347258_16.jpg | GRAPHIC | 22132
19 | GRAPHIC | img230347258_17.jpg | GRAPHIC | 22132
20 | GRAPHIC | img230347258_18.jpg | GRAPHIC | 22132
21 | GRAPHIC | img230347258_19.jpg | GRAPHIC | 22132
22 | GRAPHIC | img230347258_20.jpg | GRAPHIC | 22132
23 | GRAPHIC | img230347258_21.jpg | GRAPHIC | 22132
24 | GRAPHIC | img230347258_22.jpg | GRAPHIC | 22132
25 | GRAPHIC | img230347258_23.jpg | GRAPHIC | 22132
26 | GRAPHIC | img230347258_24.jpg | GRAPHIC | 22132
27 | GRAPHIC | img230347258_25.jpg | GRAPHIC | 22132
28 | GRAPHIC | img230347258_26.jpg | GRAPHIC | 22132
29 | GRAPHIC | img230347258_27.jpg | GRAPHIC | 22132
30 | GRAPHIC | img230347258_28.jpg | GRAPHIC | 22132
31 | GRAPHIC | img230347258_29.jpg | GRAPHIC | 22132
32 | GRAPHIC | img230347258_30.jpg | GRAPHIC | 22132
33 | GRAPHIC | img230347258_31.jpg | GRAPHIC | 22132
34 | GRAPHIC | img230347258_32.jpg | GRAPHIC | 22132
35 | GRAPHIC | img230347258_33.jpg | GRAPHIC | 22132
36 | GRAPHIC | img230347258_34.jpg | GRAPHIC | 22132
37 | GRAPHIC | img230347258_35.jpg | GRAPHIC | 22132
38 | GRAPHIC | img230347258_36.jpg | GRAPHIC | 22132
39 | GRAPHIC | img230347258_37.jpg | GRAPHIC | 48856
40 | GRAPHIC | img230347258_38.jpg | GRAPHIC | 50625
41 | GRAPHIC | img230347258_39.jpg | GRAPHIC | 50921
42 | GRAPHIC | img230347258_40.jpg | GRAPHIC | 28901
43 | GRAPHIC | img230347258_41.jpg | GRAPHIC | 33202
44 | GRAPHIC | img230347258_42.jpg | GRAPHIC | 584532
45 | GRAPHIC | img230347258_43.jpg | GRAPHIC | 25205
46 | GRAPHIC | img230347258_44.jpg | GRAPHIC | 131341
47 | GRAPHIC | img230347258_45.jpg | GRAPHIC | 114571
48 | GRAPHIC | img230347258_46.jpg | GRAPHIC | 95580
49 | GRAPHIC | img230347258_47.jpg | GRAPHIC | 80465
50 | GRAPHIC | img230347258_48.jpg | GRAPHIC | 70936
| Complete submission text file | 0000950170-25-047713.txt |  | 11798363

Data Files

Seq | Description | Document | Type | Size
--- | --- | --- | --- | ---
51 | XBRL TAXONOMY EXTENSION SCHEMA WITH EMBEDDED LINKBASES DOCUMENT | adtn-20250328.xsd | EX-101.SCH | 11687
66 | EXTRACTED XBRL INSTANCE DOCUMENT | adtn-20250328_htm.xml | XML | 455524

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: DEF 14A | Act: 34 | File No.: 001-41446 | Film No.: 25793358
SIC: 3661 Telephone & Telegraph Apparatus
(CF Office: 04 Manufacturing)