Advance financial reports | 15 September 2025 21:44

Adtran Holdings, Inc.: Preliminary announcement of the publication of quarterly reports and quarterly/interim statements

Adtran Holdings, Inc. / Preliminary announcement on the disclosure of financial statements
Adtran Holdings, Inc.: Preliminary announcement of the publication of quarterly reports and quarterly/interim statements

15.09.2025 / 21:44 CET/CEST
Preliminary announcement of the publication of quarterly reports and quarterly/interim statements transmitted by EQS News – a service of EQS Group.
The issuer is solely responsible for the content of this announcement.

Adtran Holdings, Inc. hereby announces that the following financial reports shall be disclosed:

Report Type: Quarterly financial report within the 2nd half-year (Q3)

Language: English
Date of disclosure: November 04, 2025
Address: https://investors.adtran.com/financials/sec-filings/default.aspx

15.09.2025 CET/CEST The EQS Distribution Services include Regulatory Announcements, Financial/Corporate News and Press Releases.
Archive at www.eqs-news.com

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

End of News EQS News Service

2197794  15.09.2025 CET/CEST