# Filing Detail

Form DEFR14A - Revised definitive proxy soliciting materials:
SEC Accession No. 0000950170-25-082684
Filing Date
2025-06-06
Accepted
2025-06-06 07:00:22
Documents
65

Document Format Files

Seq | Description | Document | Type | Size
--- | --- | --- | --- | ---
1 | DEFR14A | adtn-20250605.htm iXBRL | DEFR14A | 4386200
2 | GRAPHIC | img230350076_0.jpg | GRAPHIC | 222174
3 | GRAPHIC | img230350076_1.jpg | GRAPHIC | 63790
4 | GRAPHIC | img230350076_2.jpg | GRAPHIC | 20885
5 | GRAPHIC | img230350076_3.jpg | GRAPHIC | 55112
6 | GRAPHIC | img230350076_4.jpg | GRAPHIC | 54289
7 | GRAPHIC | img230350076_5.jpg | GRAPHIC | 56879
8 | GRAPHIC | img230350076_6.jpg | GRAPHIC | 52789
9 | GRAPHIC | img230350076_7.jpg | GRAPHIC | 113508
10 | GRAPHIC | img230350076_8.jpg | GRAPHIC | 26636
11 | GRAPHIC | img230350076_9.jpg | GRAPHIC | 55112
12 | GRAPHIC | img230350076_10.jpg | GRAPHIC | 148849
13 | GRAPHIC | img230350076_11.jpg | GRAPHIC | 26636
14 | GRAPHIC | img230350076_12.jpg | GRAPHIC | 26636
15 | GRAPHIC | img230350076_13.jpg | GRAPHIC | 26636
16 | GRAPHIC | img230350076_14.jpg | GRAPHIC | 22158
17 | GRAPHIC | img230350076_15.jpg | GRAPHIC | 22158
18 | GRAPHIC | img230350076_16.jpg | GRAPHIC | 22158
19 | GRAPHIC | img230350076_17.jpg | GRAPHIC | 22158
20 | GRAPHIC | img230350076_18.jpg | GRAPHIC | 22158
21 | GRAPHIC | img230350076_19.jpg | GRAPHIC | 22158
22 | GRAPHIC | img230350076_20.jpg | GRAPHIC | 22158
23 | GRAPHIC | img230350076_21.jpg | GRAPHIC | 22158
24 | GRAPHIC | img230350076_22.jpg | GRAPHIC | 22158
25 | GRAPHIC | img230350076_23.jpg | GRAPHIC | 22158
26 | GRAPHIC | img230350076_24.jpg | GRAPHIC | 22158
27 | GRAPHIC | img230350076_25.jpg | GRAPHIC | 22158
28 | GRAPHIC | img230350076_26.jpg | GRAPHIC | 22158
29 | GRAPHIC | img230350076_27.jpg | GRAPHIC | 22158
30 | GRAPHIC | img230350076_28.jpg | GRAPHIC | 22158
31 | GRAPHIC | img230350076_29.jpg | GRAPHIC | 22158
32 | GRAPHIC | img230350076_30.jpg | GRAPHIC | 22158
33 | GRAPHIC | img230350076_31.jpg | GRAPHIC | 22158
34 | GRAPHIC | img230350076_32.jpg | GRAPHIC | 22158
35 | GRAPHIC | img230350076_33.jpg | GRAPHIC | 22158
36 | GRAPHIC | img230350076_34.jpg | GRAPHIC | 22158
37 | GRAPHIC | img230350076_35.jpg | GRAPHIC | 22158
38 | GRAPHIC | img230350076_36.jpg | GRAPHIC | 22158
39 | GRAPHIC | img230350076_37.jpg | GRAPHIC | 22158
40 | GRAPHIC | img230350076_38.jpg | GRAPHIC | 48962
41 | GRAPHIC | img230350076_39.jpg | GRAPHIC | 50698
42 | GRAPHIC | img230350076_40.jpg | GRAPHIC | 51001
43 | GRAPHIC | img230350076_41.jpg | GRAPHIC | 12040
44 | GRAPHIC | img230350076_42.jpg | GRAPHIC | 17066
45 | GRAPHIC | img230350076_43.jpg | GRAPHIC | 12130
46 | GRAPHIC | img230350076_44.jpg | GRAPHIC | 25505
47 | GRAPHIC | img230350076_45.jpg | GRAPHIC | 131341
48 | GRAPHIC | img230350076_46.jpg | GRAPHIC | 114571
49 | GRAPHIC | img230350076_47.jpg | GRAPHIC | 95580
50 | GRAPHIC | img230350076_48.jpg | GRAPHIC | 103814
51 | GRAPHIC | img230350076_49.jpg | GRAPHIC | 88773
| Complete submission text file | 0000950170-25-082684.txt |  | 11381440

Data Files

Seq | Description | Document | Type | Size
--- | --- | --- | --- | ---
52 | XBRL TAXONOMY EXTENSION SCHEMA WITH EMBEDDED LINKBASES DOCUMENT | adtn-20250605.xsd | EX-101.SCH | 7774
68 | EXTRACTED XBRL INSTANCE DOCUMENT | adtn-20250605_htm.xml | XML | 527433

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: DEFR14A | Act: 34 | File No.: 001-41446 | Film No.: 251028858
SIC: 3661 Telephone & Telegraph Apparatus
(CF Office: 04 Manufacturing)