Form 10-K - Annual report [Section 13 and 15(d), not S-K Item 405]:
SEC Accession No. 0000950170-25-031056
Filing Date
2025-03-03
Accepted
2025-03-03 17:21:29
Documents
155
Period of Report
2024-12-31

Document Format Files

Seq Description Document Type Size
1 10-K adtn-20241231.htm   iXBRL 10-K 6040830
2 EX-4.1 adtn-ex4_1.htm EX-4.1 45507
3 EX-10.1(U) adtn-ex10_1u.htm EX-10.1(U) 31227
4 EX-10.1(Y) adtn-ex10_1y.htm EX-10.1(Y) 37349
5 EX-10.1(Z) adtn-ex10_1z.htm EX-10.1(Z) 22926
6 EX-19 adtn-ex19.htm EX-19 145225
7 EX-21 adtn-ex21.htm EX-21 50240
8 EX-23 adtn-ex23.htm EX-23 5014
9 EX-24 adtn-ex24.htm EX-24 15981
10 EX-31 adtn-ex31.htm EX-31 29775
11 EX-32 adtn-ex32.htm EX-32 15695
12 GRAPHIC img143569204_0.jpg GRAPHIC 25491
13 GRAPHIC img229452591_0.jpg GRAPHIC 209306
14 GRAPHIC img229452591_1.jpg GRAPHIC 494445
  Complete submission text file 0000950170-25-031056.txt   28076795

Data Files

Seq Description Document Type Size
15 XBRL TAXONOMY EXTENSION SCHEMA WITH EMBEDDED LINKBASES DOCUMENT adtn-20241231.xsd EX-101.SCH 2789997
158 EXTRACTED XBRL INSTANCE DOCUMENT adtn-20241231_htm.xml XML 6041330
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-K | Act: 34 | File No.: 001-41446 | Film No.: 25699662
SIC: 3661 Telephone & Telegraph Apparatus
(CF Office: 04 Manufacturing)