ATOSS Software SE Andreas F. J. Obereder

Language:EnglishDE

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
11.08.2026 / 10:06 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: acting in concert

3. Details of person subject to the notification obligation

Natural 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:

10 Aug 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	25.08 %	0.00 %	25.08 %	15906272
Previous notification	23.9 %	0 %	23.9 %	/

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	3989210	0.00 %	25.08 %
Total	3989210		25.08 %

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

10 Aug 2026

11.08.2026 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
LEI Code:	529900Q9G9280ADNOA39


End of News	EQS News Service

2380602 11.08.2026 CET/CEST