EQS Voting Rights Announcement: AT&S Austria Technologie & Systemtechnik AG AT&S Austria Technologie & Systemtechnik AG: Release according to Article 135, Section 2 BörseG with the objective of Europe-wide distribution 19.09.2025 / 19:24 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.

Major holdings notification pursuant to Sec. 130 to 134 BörseG 2018

19.9.2025

Overview

☐ Notification made after deadline

Caution: In case of violations of major holdings notification rules, please pay attention to Section 137 BörseG 2018 (Suspension of voting rights)

1. Issuer: AT & S Austria Technologie & Systemtechnik Aktiengesellschaft

2. Reason for the notification: Acquisition or disposal of voting rights

3. Person subject to notification obligation Name: American Century Investment Management, Inc City: Kansas City

Country: United States

4. Name of shareholder(s):

5. Date on which the threshold was crossed or reached:18.9.2025

6. Total positions

	% of voting rights attached to shares (7.A)	% of voting rights through financial/other instruments (7.B.1 + 7.B.2)	Total of both in % (7.A + 7.B)	Total number of voting rights of issuer
Resulting situation on the date on which threshold was crossed / reached	5.01 %	0.00 %	5.01 %	38 850 000
Position of previous notification (if applicable)	5.01 %		5.01 %

Details

7. Notified details of the resulting situation:

A: Voting rights attached to shares

	Number of voting rights		% of voting rights
ISIN Code	Direct (Sec 130 BörseG 2018)	Indirect (Sec 133 BörseG 2018)	Direct (Sec 130 BörseG 2018)	Indirect (Sec 133 BörseG 2018)
AT0000969985		1 945 568		5.01 %
SUBTOTAL A		1 945 568	5.01 %

Number of voting rights that may be acquired if the instrument is exercised % of voting rights

SUBTOTAL B.1

B 2: Financial / Other Instruments pursuant to Sec. 131 para. 1 No. 2 BörseG 2018

Type of	Expiration	Exercise	Physical /	Number of	% of voting
instrument	Date	Period	Cash	voting	rights
			Settlement	rights

SUBTOTAL B.2

8. Information in relation to the person subject to the notification obligation:

☐ Person subject to the notification obligation is not controlled by any natural person or legal entity and does not control any other undertaking(s) holding directly or indirectly an interest in the (underlying) issuer.

☒ Full chain of controlled undertakings through which the voting rights and/or the financial/other instruments are effectively held starting with the ultimate controlling natural person or legal entity:

No.	Name	Directly controlled by No.	Shares held directly (%)	Financial/other instruments held directly (%)	Total of both (%)
1	American Century Companies
2	American Century Investment Management, Inc	1

9. In case of proxy voting

Date of general meeting: -

Voting rights after general meeting: - is equivalent to - voting rights.

10. Sonstige Kommentare: