Asseco Poland S.A.

Major Shareholding Notification • Oct 2, 2025

1. TSS Europe B.V. ("TSS Europe")

Atoomweg 50 3542AB Utrecht Holandia | The Netherlands

2. Topicus.com Coöperatief U.A. ("Topicus Coöp")

Atoomweg 50 3542AB Utrecht Holandia | The Netherlands

3. Topicus.com Inc. ("Topicus")

20 Adelaide St. E., Suite 1200 Toronto Ontario Kanada | Canada

4. Constellation Software Inc. ("CSI")

20 Adelaide St. E., Suite 1200 Toronto Ontario Kanada | Canada

Komisja Nadzoru Finansowego

00-549 Warszawa | Poland | (notification submitted using KNF's online system) Asseco Poland S.A. ("Asseco Poland") Acting on behalf of (i) TSS Europe, (ii) Topicus Coöp, (iii) Topicus, and (iv) CSI (jointly the "Notifying

ul. Olchowa 14 35-233 Rzeszów | Poland

(iii Topicus, oraz (iv CSI "Podmioty " , 5- 5 , "Ustawa" AG ("Yukon

Zawiadomienie o zmianie stanu posiadania Notification of a change to the shareholding

: TSS Europe, (ii Topicus Coöp w Entities"), based on Article 69(1)(1), Article 69(2), Article 69a(1)(3) and Article 87(1)(5)-(6) of the Act on Public Offering, Conditions Governing the Introduction of Financial Instruments to Organised Trading, and Public Companies dated 29 July 2005 (consolidated text: Journal of Laws of 2025, item 592 as amended, the "Act") I hereby notify you that as a result of the entry into force on 1 October 2025 of the shareholders' agreement concerning Asseco Poland, concluded on 3 February 2025 between Adam Góral Fundacja Rodzinna ("AG" "Yukon") and TSS Europe, as amended, TSS Europe became a party to a written understanding with AG concerning, among

and Porozumienie (

Europe Topicus Coöp TSS Europe

Topicus Topicus Coöp

Topicus CSI, oraz Topicus

pan

, w i prawa

1. 1. Date and type of event which led to a change

other things, voting in concert at the general meetings of Asseco Poland and pursuing a consistent policy towards towards Asseco Poland within the meaning of Article 87(1)(5) of the Act (the "Understanding"), which resulted in TSS Europe and AG acquiring at least 1% of the total number of votes in Asseco Poland and Poland by TSS Europe and AG as parties to the Understanding (and indirectly by Notifying Entities other than TSS Europe and indirectly by Mr. Adam Góral).

TSS TSS Europe's direct dominant entity is Topicus Coöp, holding 100% of shares in the share capital of TSS Europe.

Topicus Coöp The dominant entity towards Topicus Coöp is Topicus, holding 64.18% of shares in the share capital of Topicus Coöp.

The dominant entity towards Topicus is CSI, a public 51.52% of the subordinate voting shares and 100% of the super voting shares in the share capital of Topicus and as a result is entitled to exercise the majority of votes.

CSI CSI does not have a dominant entity within the meaning of the Act.

The dominant entity towards AG is Mr. Adam Góral.

Pursuant to TSS Europe's notification dated 7 July 2025, published in Asseco Poland's current report no. 19/2025 dated 8 July 2025, on 3 July 2025, the merger between -surviving entity and TSS Europe as a surviving entity was registered, on the basis of which all as a consequence, lost its legal personality in accordance with the relevant provisions of Dutch law.

in the share in the total vote which is the subject of the notification

Entry into force on 1 October 2025 of the Understanding.

1. Asseco Poland ^P a: Prior to the entry into force of the Understanding:

( ( ; oraz 000 (

, a p :

i (

1. Liczba aktualnie posiadanych akcji i ich Asseco Poland

(oraz

1. Number of shares held prior to the change and their percentage share in Asseco Poland's share capital, and the number of votes attached to these shares and their percentage share in the total vote

TSS Europe directly held, and other Notifying Entities indirectly held:

20,618,892 (twenty million six hundred eighteen thousand eight hundred ninety-two) shares in Asseco Poland corresponding to 24.84% of the share capital of Asseco Poland, in total conferring the right to exercise 20,618,892 (twenty million six hundred eighteen thousand eight hundred ninety-two) of the votes at the general meeting of Asseco Poland, which corresponds to 24.84% of the total number of votes; and

AG directly held, and Mr. Adam Góral indirectly held:

8,310,000 (eight million three hundred ten thousand) shares in Asseco Poland corresponding to 10.01% of the share capital of Asseco Poland, in total conferring the right to exercise 8,310,000 (eight million three hundred ten thousand) of the votes at the general meeting of Asseco Poland, which corresponds to 10.01% of the total number of votes.

, p According to the information received from AG, Mr. Adam Góral, as at the date of this notification, did not hold directly any shares in Asseco Poland before the date of the entry into force of the Understanding.

1. Number of shares currently held and their percentage share in Asseco Poland's share capital, and the number of votes attached to these shares and their percentage share in the total vote

TSS (oraz p The entry into force of the Understanding did not affect the change in the number of shares in Asseco Poland held by TSS Europe directly (and other Notifying Entities indirectly) and AG (and Mr. Adam Góral indirectly).

As a result of the entry into force of the Understanding, as at the date of this notification, TSS Europe directly (and the other Notifying Entities indirectly) and AG (and Mr. Adam Góral indirectly) jointly hold 28,928,892 (twenty-eight million nine hundred twenty

5 5

( ( ; oraz 000 (

, :

i (

1. Asseco Poland oraz lit. c Ustawy

, od

eight thousand eight hundred ninety-two) shares in Asseco Poland corresponding to 34.85% of the share capital of Asseco Poland, in total conferring the right to exercise 28,928,892 (twenty-eight million nine hundred twenty-eight thousand eight hundred ninety-two) of the votes at the general meeting of Asseco Poland, which corresponds to 34.85% of the total number of votes, of which:

TSS Europe directly holds, and other Notifying Entities indirectly hold:

20,618,892 (twenty million six hundred eighteen thousand eight hundred ninety-two) shares in Asseco Poland corresponding to 24.84% of the share capital of Asseco Poland, in total conferring the right to exercise 20,618,892 (twenty million six hundred eighteen thousand eight hundred ninety-two) of the votes at the general meeting of Asseco Poland, which corresponds to 24.84% of the total number of votes; and

AG directly holds, and Mr. Adam Góral indirectly holds:

8,310,000 (eight million three hundred ten thousand) shares in Asseco Poland corresponding to 10.01% of the share capital of Asseco Poland, in total conferring the right to exercise 8,310,000 (eight million three hundred ten thousand) of the votes at the general meeting of Asseco Poland, which corresponds to 10.01% of the total number of votes.

, p According to the information received from AG, Mr. Adam Góral, as at the date of this notification, does not hold directly any shares in Asseco Poland.

1. Information on the subsidiaries of the shareholder making the notification, which hold shares in Asseco Poland and third parties referred to in Art. 87(1)(3)(c) of the Act

, The subsidiaries of TSS Europe and subsidiaries of the Notifying Entities, other than covered by this notification, do not hold or did not hold directly or indirectly any shares in Asseco Poland.

5. –

, None of the Notifying Entities is or was a party to the

agreements referred to in Article 87(1)(3)(c) of the Act. According to the information received from AG, none of the subsidiaries of AG holds, nor did it hold, directly or indirectly, any shares in Asseco Poland, nor is it or was a party to the agreements referred to in Article 87(1)(3)(c) of the Act.

5. Information on financial instruments referred to in Art. 69b of the Act pursuant to Art. 69(4)(7-9) of the Act

, ani Not applicable. None of the Notifying Entities holds or held the financial instruments referred to in Article 69b of the Act.

Mr. Adam Góral is entitled to exercise the call option regarding the acquisition of no more than 705,503 (seven hundred and five thousand five hundred and three) shares in Asseco Poland corresponding to 0.85% of the share capital of Asseco Poland, in total conferring the right to exercise 705,503 (seven hundred and five thousand five hundred and three) of the votes at the general meeting of Asseco Poland, which corresponds to 0.85% of the total number of votes.

The Polish language version constitutes an unofficial Polish translation, in the event of any discrepancy, the English version shall prevail.

On behalf of the Notifying Entities:

__________________________

| Attorney-in-fact