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AIXTRON SE Major Shareholding Notification 2026

May 20, 2026

20_rns_2026-05-20_bbcb82e7-be4d-4444-98c7-f05e1b6d406a.html

Major Shareholding Notification

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News Details

Voting rights Announcements | 20 May 2026 10:00

The Goldman Sachs Group, Inc., Wilmington, DE, United States of America (USA)

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

20.05.2026 / 10:00 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: AIXTRON SE
Street: Dornkaulstraße 2
Postal code: 52134
City: Herzogenrath

Germany
Legal Entity Identifier (LEI): 5299004UJ4D51M25LD67

2. Reason for notification

Acquisition/disposal of shares with voting rights
X Acquisition/disposal of instruments
Change of breakdown of voting rights
Other reason:

3. Details of person subject to the notification obligationLegal entity: The Goldman Sachs Group, Inc.

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

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:12 May 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 5.52 % 3.50 % 9.02 % 113456120
Previous notification 4.75 % 5.83 % 10.58 % /

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)
DE000A0WMPJ6 0 6260290 0 % 5.52 %
Total 6260290 5.52 %

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 %
Right To Recall Open 1495173 1.32 %
Right Of Use Open 329838 0.29 %
Call Option 18.09.2026 50000 0.04 %
Convertible Bond 25.04.2031 426799 0.38 %
Total 2301810 2.03 %

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 %
Swap 16.04.2036 Cash 570180 0.50 %
Call Option 03.07.2026 Cash 1690 0.001 %
Call Warrant 31.12.2030 Cash 1094688 0.96 %
Total 1666558 1.47 %

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)
The Goldman Sachs Group, Inc. % % %
GSAM Holdings LLC % % %
Goldman Sachs Asset Management, L.P. % % %
Goldman Sachs Asset Management International Holdings L.L.C. % % %
Goldman Sachs Asset Management Co., Ltd. % % %
% % %
The Goldman Sachs Group, Inc. % % %
GSAM Holdings LLC % % %
Goldman Sachs Asset Management Holdings LLC % % %
Goldman Sachs Asset Management UK Holdings I Ltd % % %
Goldman Sachs Asset Management UK Holdings II Ltd % % %
Goldman Sachs Asset Management Holdings I B.V. / Goldman Sachs Asset Management Holdings II B.V. % % %
Goldman Sachs Asset Management Holdings B.V. % % %
Goldman Sachs Asset Management International Holdings B.V. % % %
Goldman Sachs Asset Management B.V. % % %
% % %
The Goldman Sachs Group, Inc. % % %
Goldman Sachs Bank USA % % %
Goldman Sachs Bank Europe SE % % %
% % %
The Goldman Sachs Group, Inc. % % %
Goldman Sachs (UK) L.L.C. % % %
Goldman Sachs Group UK Limited % % %
Goldman Sachs International Bank % % %
% % %
The Goldman Sachs Group, Inc. % % %
Goldman Sachs & Co. LLC % % %
% % %
The Goldman Sachs Group, Inc. % % %
Goldman Sachs (UK) L.L.C. % % %
Goldman Sachs Group UK Limited % % %
Goldman Sachs International % % %

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

18 May 2026


20.05.2026 CET/CEST The EQS Distribution Services include Regulatory Announcements, Financial/Corporate News and Press Releases.


Language: English
Company: AIXTRON SE
Dornkaulstraße 2
52134 Herzogenrath
Germany
Internet: www.aixtron.com
End of News EQS News Service

2329512  20.05.2026 CET/CEST