Event Type
Disclosure
Mandatory
Variant
8-K
Results of Operations and Financial Condition. On February 25, 2026, ADTRAN Holdings, Inc. (“ADTRAN”) announced its financial results for the quarter and fiscal
Regulation FD Disclosure. Executives from ADTRAN will review the financial results via a live audio webcast on Thursday, February 26, 2026, at 7:30 a.m. Central
Financial Statements and Exhibits. Exhibit Number Description 99.1 Press Release dated February 25, 2026 99.2 Visual Presentation of February 26, 2026 104 Cover