Other capital market information | 12 December 2025 09:49

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

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

12.12.2025 / 09:49 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 11 December 2025, Adtran Holdings, Inc. filed a form 8-K report with the US Securities and Exchange Commission (SEC). It is available on the SEC website at https://www.sec.gov/ix?doc=/Archives/edgar/data/0000926282/000119312525315910/adtn-20251209.htm . It is also available on the Adtran Holdings, Inc. website at https://investors.adtran.com/sec-filings/default.aspx .

12.12.2025 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

End of News EQS News Service

2244804  12.12.2025 CET/CEST