Form 8-K - Current report:
SEC Accession No. 0001193125-25-211271
Filing Date
2025-09-22
Accepted
2025-09-22 16:05:28
Documents
17
Period of Report
2025-09-19
Items
Item 1.01: Entry into a Material Definitive Agreement
Item 2.03: Creation of a Direct Financial Obligation or an Obligation under an Off-Balance Sheet Arrangement of a Registrant
Item 3.02: Unregistered Sales of Equity Securities
Item 9.01: Financial Statements and Exhibits

Document Format Files

Seq Description Document Type Size
1 8-K adtn-20250919.htm   iXBRL 8-K 62453
2 EX-4.1 adtn-ex4_1.htm EX-4.1 1399800
3 EX-10.1 adtn-ex10_1.htm EX-10.1 342610
4 GRAPHIC img203083222_0.jpg GRAPHIC 3824
5 GRAPHIC img203083222_1.jpg GRAPHIC 5118
6 GRAPHIC img203083222_2.jpg GRAPHIC 5048
7 GRAPHIC img203083222_3.jpg GRAPHIC 5098
8 GRAPHIC img203083222_4.jpg GRAPHIC 6757
  Complete submission text file 0001193125-25-211271.txt   2143215

Data Files

Seq Description Document Type Size
9 XBRL TAXONOMY EXTENSION SCHEMA WITH EMBEDDED LINKBASES DOCUMENT adtn-20250919.xsd EX-101.SCH 25023
19 EXTRACTED XBRL INSTANCE DOCUMENT adtn-20250919_htm.xml XML 4758
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: 8-K | Act: 34 | File No.: 001-41446 | Film No.: 251330062
SIC: 3661 Telephone & Telegraph Apparatus
(CF Office: 04 Manufacturing)