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ATOSS Software AG Major Shareholding Notification 2026

May 4, 2026

38_rns_2026-05-04_eec04d0d-0154-4d66-92cc-ec214ce89047.html

Major Shareholding Notification

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News Details

Voting rights Announcements | 4 May 2026 11:28

Andreas F. J. Obereder

ATOSS Software SE

ATOSS Software SE: Release according to Article 40, Section 1 of the WpHG [the German Securities Trading Act] with the objective of Europe-wide distribution

04.05.2026 / 11:28 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: ATOSS Software SE
Street: Rosenheimer Str. 141 h
Postal code: 81671
City: München

Germany
Legal Entity Identifier (LEI): 529900Q9G9280ADNOA39

2. Reason for notification

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

voluntary group announcement due to threshold notification of a subsidiary

3. Details of person subject to the notification obligationNatural person (first name, surname): Andreas F. J. Obereder

Date of birth: 13 Oct 1958

4. Names of shareholder(s)

holding directly 3% or more voting rights, if different from 3.

AOB Portfolio One GmbH & Co. KG

5. Date on which threshold was crossed or reached:01 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 23.90 % 0.00 % 23.90 % 15906272
Previous notification 21.59 % 0 % 21.59 % /

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)
DE0005104400 0 3801214 0.00 % 23.90 %
Total 3801214 23.90 %

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 %
0 0.00 %
Total 0 0.00 %

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 %
0 0.00 %
Total 0 0.00 %

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)
-Andreas F.J. Obereder % % %
-AOB Invest GmbH % % %
-AOB Portfolio One GmbH & Co. KG 23.90 % % 23.90 %

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

04 May 2026


04.05.2026 CET/CEST The EQS Distribution Services include Regulatory Announcements, Financial/Corporate News and Press Releases.


Language: English
Company: ATOSS Software SE
Rosenheimer Str. 141 h
81671 München
Germany
Internet: www.atoss.com
End of News EQS News Service

2320552  04.05.2026 CET/CEST