Barclays PLC, London, United Kingdom

Siltronic AG
Siltronic AG: Release according to Article 40, Section 1 of the WpHG [the German Securities Trading Act] with the objective of Europe-wide distribution
08.07.2026 / 11:24 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:	Siltronic AG
Street:	Einsteinstr. 172
Postal code:	81677
City:	Munich Germany
Legal Entity Identifier (LEI):	5299003NKV26NNGHHR90

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: Barclays PLC
City of registered office, country: London, United Kingdom

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:

01 Jul 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	2.57 %	1.50 %	4.07 %	33000000
Previous notification	3.58 %	1.47 %	5.05 %	/

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)
DE000WAF3001	0	847157	0.00 %	2.57 %
Total	847157		2.57 %

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	n/a	n/a	2265	0.01 %
Convertible Bond	23/01/2029	n/a	37717	0.11 %
		Total	39982	0.12 %

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	n/a	Cash	860	0 %
Future Index Swap	21/07/2026 – 21/09/2026	n/a	Cash	378093	1.15 %
Portfolio Swap	25/11/2026 – 24/11/2027	n/a	Cash	77188	0.23 %
			Total	456141	1.38 %

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)
Barclays PLC	%	%	%
Barclays Bank PLC	%	%	%
–	%	%	%
Barclays PLC	%	%	%
Barclays Bank PLC	%	%	%
Barclays Capital Securities 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 rights	Proportion of instruments	Total of both
%	%	%

10. Other explanatory remarks:

Date

07 Jul 2026

08.07.2026 CET/CEST The EQS Distribution Services include Regulatory Announcements, Financial/Corporate News and Press Releases.

Language:	English
Company:	Siltronic AG
	Einsteinstr. 172
	81677 Munich
	Germany
Internet:	www.siltronic.com


End of News	EQS News Service

2362584 08.07.2026 CET/CEST