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ADVA Optical Networking SE Major Shareholding Notification 2026

May 2, 2026

17_rns_2026-05-02_ab3ca0aa-660a-4b7e-aee8-9e048e7b6310.html

Major Shareholding Notification

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News Details

Voting rights Announcements | 2 May 2026 09:42

JPMorgan Chase & Co., Wilmington, Delaware, United States of America (USA)

Adtran Networks SE

Adtran Networks SE: Release according to Article 40, Section 1 of the WpHG [the German Securities Trading Act] with the objective of Europe-wide distribution

02.05.2026 / 09:42 CET/CEST

Dissemination of a Voting Rights Announcement transmitted by EQS News – a service of EQS Group .

The issuer is solely responsible for the content of this announcement.


Notification of Major Holdings

1. Details of issuer

Name: Adtran Networks SE
Street: Märzenquelle 1-3
Postal code: 98617
City: Meiningen-Dreissigacker

Germany
Legal Entity Identifier (LEI): 5299001QZNN0TKI9J120

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 obligationLegal entity: JPMorgan Chase & Co.

City of registered office, country: Wilmington, Delaware, United States of America (USA)

4. Names of shareholder(s)

holding directly 3% or more voting rights, if different from 3.

J.P. Morgan Securities plc

5. Date on which threshold was crossed or reached:29 Apr 2026

6. Total positions

% of voting rights attached to shares

(total of 7.a.)
% of voting rights through instruments

(total of 7.b.1 + 7.b.2)
Total of both in %

(7.a. + 7.b.)
Total number of voting rights pursuant to Sec. 41 WpHG
New 3.18 % 0.00015368508 % 3.18 % 52054500
Previous notification 2.81 % 0.38 % 3.19 % /

7. Details on total positions

a. Voting rights attached to shares (Sec. 33, 34 WpHG)

ISIN Absolute In %
Direct

(Sec. 33 WpHG)
Indirect

(Sec. 34 WpHG)
Direct

(Sec. 33 WpHG)
Indirect

(Sec. 34 WpHG)
DE0005103006 0 1657744 0.00 % 3.18 %
Total 1657744 3.18 %

b.1. Instruments according to Sec. 38 (1) no. 1 WpHG

Type of instrument Expiration or maturity date Exercise or conversion period Voting rights absolute Voting rights in %
0 0.00 %
Total 0 0.00 %

b.2. Instruments according to Sec. 38 (1) no. 2 WpHG

Type of instrument Expiration or maturity date Exercise or conversion period Cash or physical settlement Voting rights absolute Voting rights in %
Equity Swap 31/03/2027 31/03/2027 Cash 80 0 %
Total 80 0.00015368508 %

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 at least 3% or more) % of voting rights through instruments (if at least 5% or more) Total of both (if at least 5% or more)
JPMorgan Chase & Co. % % %
JPMorgan Chase Bank, National Association % % %
J.P. Morgan International Finance Limited % % %
J.P. Morgan Capital Holdings Limited % % %
J.P. Morgan Securities plc 3.18 % % %
% % %
JPMorgan Chase & Co. % % %
JPMorgan Chase Holdings LLC % % %
J.P. Morgan Broker-Dealer Holdings Inc. % % %
J.P. Morgan Securities LLC % % %

9. In case of proxy voting according to Sec. 34 para. 3 WpHG

(only in case of attribution of voting rights in accordance with Sec. 34 para. 1 sent. 1 No. 6 WpHG)

Date of general meeting:

Holding total positions after general meeting (6.) after annual general meeting:

Proportion of voting rights Proportion of instruments Total of both
% % %

10. Other explanatory remarks:

Date

01 May 2026


02.05.2026 CET/CEST The EQS Distribution Services include Regulatory Announcements, Financial/Corporate News and Press Releases.


Language: English
Company: Adtran Networks SE
Märzenquelle 1-3
98617 Meiningen-Dreissigacker
Germany
Internet: www.adva.com, www.adtran.com
End of News EQS News Service

2319970  02.05.2026 CET/CEST