<SEC-DOCUMENT>0001193125-25-303492-index.html : 20251201 <SEC-HEADER>0001193125-25-303492.hdr.sgml : 20251201 <ACCEPTANCE-DATETIME>20251201120008 ACCESSION NUMBER: 0001193125-25-303492 CONFORMED SUBMISSION TYPE: 4 PUBLIC DOCUMENT COUNT: 1 CONFORMED PERIOD OF REPORT: 20251128 FILED AS OF DATE: 20251201 DATE AS OF CHANGE: 20251201 REPORTING-OWNER: OWNER DATA: COMPANY CONFORMED NAME: Santo Timothy P CENTRAL INDEX KEY: 0001974835 ORGANIZATION NAME: FILING VALUES: FORM TYPE: 4 SEC ACT: 1934 Act SEC FILE NUMBER: 001-41446 FILM NUMBER: 251538387 MAIL ADDRESS: STREET 1: 2445 TECHNOLOGY FOREST BLVD. STREET 2: STE. 800 CITY: THE WOODLANDS STATE: TX ZIP: 77381 ISSUER: 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 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>4 <SEQUENCE>1 <FILENAME>ownership.xml <DESCRIPTION>4 <TEXT> Document 1 - file: ownership.html
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