Adtran Holdings, Inc.: Release according to Article 41 of the WpHG (the
German Securities Trading Act) with the objective of Europe-wide distribution

EQS Total Voting Rights Announcement: Adtran Holdings, Inc. / Total Voting
Rights Announcement
Adtran Holdings, Inc.: Release according to Article 41 of the WpHG (the
German Securities Trading Act) with the objective of Europe-wide
distribution

31.03.2024 / 08:00 CET/CEST
Total Voting Rights Announcement transmitted by EQS News - a service of EQS
Group AG.
The issuer is solely responsible for the content of this announcement.

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Publication of new total number of voting rights according to Sec. 41 WpHG

1. Details of issuer

     Adtran Holdings, Inc.
     901 Explorer Boulevard
     35806 Huntsville
     United States

2. Type of capital measure or other measure

        Type of capital measure or other          Date of status / date
        measure                                   of effect
   X    Conditional capital increase (Sec. 41     31.03.2024
        para. 2 WpHG)
        Other (capital) measure (Sec. 41 para.
        1 WpHG)

3. New total number of voting rights:

     79.115.799
     number of multiple voting rights thereof: 0

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31.03.2024 CET/CEST The EQS Distribution Services include Regulatory
Announcements, Financial/Corporate News and Press Releases.
Archive at www.eqs-news.com

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

End of News EQS News Service
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1870743 31.03.2024 CET/CEST