ADTRAN Holdings: Filings
Current report8-KOct 29, 2026—
Current report8-KAug 10, 2026—
Current report8-KJun 26, 2026—
Current report8-KMay 18, 2026—
Current report8-KApr 7, 2026—
Proxy statementDEF 14AMar 27, 2026FY2025
Annual report10-KFeb 26, 2026FY2025
Current report8-KDec 11, 2025—
Current report8-KJul 30, 2025—
Proxy statementDEF 14AMar 31, 2025FY2024
Current report8-KMar 7, 2025—
Annual report10-KMar 3, 2025FY2024
Current report8-KAug 30, 2024—
Current report8-KAug 2, 2024—
Current report8-KMay 9, 2024—
Proxy statementDEF 14AMar 27, 2024FY2023
Annual report10-KMar 15, 2024FY2023
Current report8-KDec 6, 2023—
Current report8-KDec 5, 2023—
Current report8-KOct 24, 2023—
Current report8-KSep 29, 2023—
Current report8-KJun 28, 2023—
Current report8-KJun 1, 2023—
Current report8-KMay 30, 2023—
Current report8-KApr 3, 2023—
Current report8-KMar 30, 2023—
Annual report10-KMar 1, 2023FY2022
Current report8-KJan 26, 2023—
Annual report10-KFeb 25, 2022FY2021
Annual report10-KFeb 26, 2021FY2020
Annual report10-KFeb 25, 2020FY2019
Annual report10-KFeb 28, 2019FY2018
Annual report10-KFeb 23, 2018FY2017
Annual report10-KFeb 24, 2017FY2016
34 filings