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EQS Voting Rights Announcement: Adtran Holdings, Inc.
Adtran Holdings, Inc.: Release according to Article 40, Section 1 of the WpHG [the German Securities Trading Act] with
the objective of Europe-wide distribution
2024-03-21 / 16:39 CET/CEST
Dissemination of a Voting Rights Announcement transmitted by EQS News - a service of EQS Group AG.
The issuer is solely responsible for the content of this announcement.
Notification of Major Holdings
1. Details of issuer


Name: Adtran Holdings, Inc.

Street: 901 Explorer Boulevard

Postal code: 35806

City: Huntsville
United States

Legal Entity Identifier (LEI): 549300VV36J86CRRWF77
2. Reason for notification


X Acquisition/disposal of shares with voting rights

Acquisition/disposal of instruments

Change of breakdown of voting rights

Other reason:
3. Details of person subject to the notification obligation


Legal entity: BlackRock, Inc.
City of registered office, country: New York, New York, United States of America (USA)
4. Names of shareholder(s) holding directly 3% or more voting rights, if different from 3.


iShares Trust
5. Date on which threshold was crossed or reached:


15 March 2024
6. Total positions

% of voting rights % of voting rights through     Total of 
attached to shares                instruments    both in %        Total number of voting rights 
(total of 7.a.)   (total of 7.b.1 + 7.b.2)      (7.a. +             pursuant to Sec. 41 WpHG 

7.b.)

New 14.80 % 0.95 % 15.74 % 79115105

Previous 15.31 % 1.09 % 16.40 % /
notification
7. Details on total positions a. Voting rights attached to shares (Sec. 33, 34 WpHG)


ISIN Absolute In %

Direct Indirect Direct Indirect
(Sec. 33 WpHG) (Sec. 34 WpHG) (Sec. 33 WpHG) (Sec. 34 WpHG)

US00486H1059 0 11705692 0 % 14.80 %

Total 11705692 14.80 %
b.1. Instruments according to Sec. 38 (1) no. 1 WpHG

Type of instrument            Expiration or maturity   Exercise or conversion          Voting rights Voting rights in 
date                     period                               absolute                % 

Lent Securities (right to N/A N/A 738711 0.93 %
recall)

Total 738711 0.93 %
b.2. Instruments according to Sec. 38 (1) no. 2 WpHG

Type of           Expiration or         Exercise or conversion Cash or physical          Voting rights  Voting rights 
instrument        maturity date         period                 settlement                     absolute           in % 

Contract for N/A N/A Cash 10997 0.01 %
Difference

Total 10997 0.01 %
8. Information in relation to the person subject to the notification obligation


Person subject to the notification obligation is not controlled nor does it control any other
undertaking(s) that directly or indirectly hold(s) an interest in the (underlying) issuer (1.).

X Full chain of controlled undertakings starting with the ultimate controlling natural person or legal
entity:

Name                                % of voting rights (if           % of voting rights through  Total of both (if at 
at least 3% or more) instruments (if at least 5% or more)     least 5% or more) 

BlackRock, Inc. % % %

Trident Merger LLC % % %

BlackRock Investment Management, % % %
LLC

- % % %

BlackRock, Inc. % % %

BlackRock Holdco 2, Inc. % % %

BlackRock Financial Management, % % %
Inc.

- % % %

BlackRock, Inc. % % %

BlackRock Holdco 2, Inc. % % %

BlackRock Financial Management, % % %
Inc.

BlackRock Capital Holdings, Inc. % % %

BlackRock Advisors, LLC % % %

- % % %

BlackRock, Inc. % % %

Trident Merger LLC % % %

BlackRock Investment Management, % % %
LLC

Amethyst Intermediate LLC % % %

Aperio Holdings LLC % % %

Aperio Group, LLC % % %

- % % %

BlackRock, Inc. % % %

BlackRock Holdco 2, Inc. % % %

BlackRock Financial Management, % % %
Inc.

BlackRock International Holdings, % % %
Inc.

BlackRock Canada Holdings ULC % % %

BlackRock Asset Management Canada % % %
Limited

- % % %

BlackRock, Inc. % % %

BlackRock Holdco 2, Inc. % % %

BlackRock Financial Management, % % %
Inc.

BlackRock Holdco 4, LLC % % %

BlackRock Holdco 6, LLC % % %

BlackRock Delaware Holdings Inc. % % %

BlackRock Fund Advisors 11.24 % % 11.24 %

- % % %

BlackRock, Inc. % % %

BlackRock Holdco 2, Inc. % % %

BlackRock Financial Management, % % %
Inc.

BlackRock Holdco 4, LLC % % %

BlackRock Holdco 6, LLC % % %

BlackRock Delaware Holdings Inc. % % %

BlackRock Institutional Trust % % %
Company, National Association

- % % %

BlackRock, Inc. % % %

BlackRock Holdco 2, Inc. % % %

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March 21, 2024 11:39 ET (15:39 GMT)