Ministry of Finance on behalf of the State of Norway, Oslo, Norway

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: Ministry of Finance on behalf of the State of Norway City of registered office, country: Oslo, Norway

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

Norges Bank

5. Date on which threshold was crossed or reached:

02 Sep 2026

6. Total Fina Elf positions

	% of voting rights attached to shares ( Total Fina Elf of 7.a.)	% of voting rights through instruments ( Total Fina Elf of 7.b.1 + 7.b.2)	Total Fina Elf of both in % (7.a. + 7.b.)	Total Fina Elf number of voting rights pursuant to Sec. 41 WpHG
New	3.61 %	0.22 %	3.83 %	113456120
Previous notification	2.79 %	0.22 %	3.01 %	/

7. Details on Total Fina Elf 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	4096715	0.00 %	3.61 %
Total Fina Elf	4096715		3.61 %

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 %
Shares lent/otherwise transferred (recall)	N/A	At any time	149025	0.13 %
		Total Fina Elf	149025	0.13 %

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 %
CFD	n/a	At any time	Cash	96661	0.09 %
			Total Fina Elf	96661	0.09 %

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 Fina Elf of both (if at least 5% or more)
State of Norway	%	%	%
Norges Bank	3.61 %	%	%

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 Fina Elf positions after general meeting (6.) after annual general meeting:

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

10. Other explanatory remarks:

Date

03 Sep 2026