AIXTRON SE: Release according to Article 40, Section 1 of the WpHG (the
German Securities Trading Act) with the objective of Europe-wide distribution

EQS Voting Rights Announcement: AIXTRON SE
AIXTRON SE: Release according to Article 40, Section 1 of the WpHG (the
German Securities Trading Act) with the objective of Europe-wide
distribution

26.03.2024 / 16:23 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.

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Notification of Major Holdings

1. Details of issuer

     Name:                             AIXTRON SE
     Street:                           Dornkaulstraße 2
     Postal code:                      52134
     City:                             Herzogenrath
                                       Germany
     Legal Entity Identifier (LEI):    5299004UJ4D51M25LD67

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: Perpetual Limited
   City of registered office, country: 18/123 Pitt Street, Sydney, 2000,
   NSW, Australia

4. Names of shareholder(s)
holding directly 3% or more voting rights, if different from 3.



5. Date on which threshold was crossed or reached:

29 Feb 2024

6. Total positions

               % of voting  % of voting rights   Total of  Total number of
           rights attached             through  both in %    voting rights
                 to shares  instruments (total    (7.a. +      pursuant to
           (total of 7.a.)   of 7.b.1 + 7.b.2)      7.b.)     Sec. 41 WpHG
  New               2.96 %               N/A %     2.96 %      113,411,020
  Previo-           3.65 %               N/A %     3.65 %                /
  us
  notifi-
  cation

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)
  DE000A0WMPJ6                       3,363,206               %          2.96 %
  Total           3,363,206                        2.96 %

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

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

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

    Type of    Expiration   Exercise or  Cash or       Voting  Voting
    instrume-  or maturity  conversion   physical      rights  rights
    nt         date         period       settlement  absolute    in %
                                                                    %
                                         Total                      %

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       % of voting rights  Total of both
                   rights (if at  through instruments (if   (if at least
                     least 3% or     at least 5% or more)    5% or more)
                           more)
    Perpetual                  %                        %              %
    Limited
    Perpetual                  %                        %              %
    Acquisition
    Company
    Limited
    Pendal Group               %                        %              %
    Limited
    J O Hambro                 %                        %              %
    Capital
    Management
    Limited
    ---                        %                        %              %
    Perpetual                  %                        %              %
    Limited
    Perpetual                  %                        %              %
    Acquisition
    Company
    Limited
    Pendal Group               %                        %              %
    Limited
    Pendal                     %                        %              %
    Institutional
    Limited
    ---                        %                        %              %
    Perpetual                  %                        %              %
    Limited
    Perpetual                  %                        %              %
    Acquisition
    Company
    Limited
    Pendal Group               %                        %              %
    Limited
    JOHCM                      %                        %              %
    (Singapore)
    Pte Limited

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    Proportion of    Total of
                   rights      instruments        both
                        %                %           %

10. Other explanatory remarks:



Date

04 March 2024


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26.03.2024 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:     AIXTRON SE
                Dornkaulstraße 2
                52134 Herzogenrath
                Germany
   Internet:    www.aixtron.com

End of News EQS News Service
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1867705 26.03.2024 CET/CEST