<SEC-DOCUMENT>0001193125-26-127649-index.html : 20260327 <SEC-HEADER>0001193125-26-127649.hdr.sgml : 20260327 <ACCEPTANCE-DATETIME>20260327082019 ACCESSION NUMBER: 0001193125-26-127649 CONFORMED SUBMISSION TYPE: ARS PUBLIC DOCUMENT COUNT: 1 CONFORMED PERIOD OF REPORT: 20251231 FILED AS OF DATE: 20260327 DATE AS OF CHANGE: 20260327 EFFECTIVENESS DATE: 20260327 FILER: COMPANY DATA: COMPANY CONFORMED NAME: ADTRAN Holdings, Inc. CENTRAL INDEX KEY: 0000926282 STANDARD INDUSTRIAL CLASSIFICATION: TELEPHONE & TELEGRAPH APPARATUS [3661] ORGANIZATION NAME: 04 Manufacturing EIN: 872164282 FISCAL YEAR END: 1231 FILING VALUES: FORM TYPE: ARS SEC ACT: 1934 Act SEC FILE NUMBER: 001-41446 FILM NUMBER: 26801203 BUSINESS ADDRESS: STREET 1: 901 EXPLORER BLVD CITY: HUNTSVILLE STATE: AL ZIP: 35806 BUSINESS PHONE: 256-963-8220 MAIL ADDRESS: STREET 1: 901 EXPLORER BLVD CITY: HUNTSVILLE STATE: AL ZIP: 35806 FORMER COMPANY: FORMER CONFORMED NAME: ADTRAN INC DATE OF NAME CHANGE: 19940705 </SEC-HEADER> <DOCUMENT> <TYPE>ARS <SEQUENCE>1 <FILENAME>adtn-2025_annual_report_.pdf <DESCRIPTION>ARS <TEXT> Document 1 - file: adtn-2025_annual_report_.pdf
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