Adtran Holdings, Inc.: Release according to Article 50 of the WpHG [the German Securities Trading Act] with the objective of Europe-wide distribution

July 17, 2026

Adtran Holdings, Inc. / Third country release according to Article 50 Para. 1, No. 2 of the WpHG [the German Securities Trading Act]
Adtran Holdings, Inc.: Release according to Article 50 of the WpHG [the German Securities Trading Act] with the objective of Europe-wide distribution

17.07.2026 / 20:49 CET/CEST
Dissemination of a Post-admission Duties announcement according to Article 50 Para. 1, No. 2 WpHG transmitted by EQS News - a service of EQS Group.
The issuer is solely responsible for the content of this announcement.

On 17 July 2026, Adtran Holdings, Inc. filed a form S-3ASR with the US Securities and Exchange Commission (SEC). It is available on the SEC website at https://www.sec.gov/Archives/edgar/data/926282/000119312526307471/d151408ds3asr.htm. It is also available on the Adtran Holdings, Inc. website at https://investors.adtran.com/sec-filings/default.aspx.

17.07.2026 CET/CEST The EQS Distribution Services include Regulatory Announcements, Financial/Corporate News and Press Releases.

Language:	English
Company:	Adtran Holdings, Inc.
	901 Explorer Boulevard
	35806 Huntsville
	United States
Internet:	www.adtran.com
LEI Code:	549300VV36J86CRRWF77


End of News	EQS News Service

2367856 17.07.2026 CET/CEST

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