{"url_path":"/sec/adtn/8-k/2026-05-18/item-5-03","section_key":"item-5-03","section_title":"Item 5.03 Amendments to Articles of Incorporation or Bylaws; Change in Fiscal Year.","topic":"sec","document":{"doc_type":"8-K","doc_date":"2026-05-18","source_url":"https://www.sec.gov/Archives/edgar/data/926282/0001193125-26-228208-index.html","accession_number":"0001193125-26-228208","cik":"0000926282","ticker":"ADTN","issuer_name":"ADTRAN Holdings, Inc.","edgar_url":"https://www.sec.gov/Archives/edgar/data/926282/0001193125-26-228208-index.html","primary_entity_key":"0000926282","primary_entity_name":"ADTRAN Holdings, Inc."},"word_count":182,"has_tables":true,"body_markdown":"Item 5.03 Amendments to Articles of Incorporation or Bylaws; Change in Fiscal Year.\n\nAt the Annual Meeting of Stockholders held by ADTRAN Holdings, Inc. (the “Company”) on May 13, 2026 (the “2026 Annual Meeting”), the Company’s stockholders approved an amendment (the “Charter Amendment”) to the Company’s Amended and Restated Certificate of Incorporation (the “Charter”). As further described in Proposal 2 of the Company’s definitive proxy statement filed with the Securities and Exchange Commission on March 27, 2026, the Charter Amendment provides for the elimination of monetary liability (i.e., exculpation) of certain officers of the Company in the limited circumstances permitted under Delaware law and made certain additional changes to Section 7.1 of the Charter. The Charter Amendment became effective upon the filing of a Certificate of Amendment (the “Certificate of Amendment”) with the Secretary of State of the State of Delaware on May 13, 2026.\n\nThe foregoing summary is not complete and is qualified in its entirety by reference to the full text of the Certificate of Amendment, a copy of which is filed as Exhibit 3.1 and incorporated by reference herein."}