Corporate announcements

Announcement of Regulated information pursuant to Law 3556/2007

Notification of major holdings Law 3556/2007

OPAP Holding SA (the “Company”, “Issuer”), pursuant to the provisions of Law 3556/2007 and following disclosure received by VALEA FOUNDATION on 26.02.2026, announces the following:

As of 26.02.2026, the direct shareholder of the issuer Allwyn International AG (formerly Allwyn International a.s.) held a percentage of 38,96 % and the direct shareholder Allwyn Greece & Cyprus Holding Ltd held a percentage of 15,48 %. As a result, based on the concerted action of all entities referred to in the below table, all these entities indirectly controlled in total 54.44% of the total share capital and voting rights in the Issuer, as follows:

The Extraordinary General Meeting of the Shareholders of the Issuer held on 7 January 2026, resolved, among other items, to cancel eleven million four hundred fifty-nine thousand two hundred sixty three (11,459,263) treasury shares acquired by the Issuer under approved share buyback programs, with a corresponding reduction of its share capital by the amount of three million four hundred thirty-seven thousand seven hundred seventy-eight euros and ninety cents (€3,437,778.90), in accordance with article 49 of Greek Law 4548/2018 and the amendment of article 5 of the Company's Articles of Association. Following this reduction, the share capital of the Issuer now amounts to one hundred seven million five hundred eighty-one thousand forty-three euros and forty cents (€107,581,043.40), divided into three hundred fifty-eight million six hundred three thousand four hundred seventy-eight (358,603,478) registered and indivisible shares, with a nominal value of thirty cents (€0.30) each.

On 20 February 2026, the decision of the Ministry of Development with protocol number 4026544AΠ/2026 was registered in the General Commercial Registry (G.E.MI.), approving the amendment of the relevant article 5 of the Company's Articles of Association. In connection with the cancellation of 11,459,263 treasury shares, the percentage values of the shares held by each individual shareholders increased proportionally as reflected in the "Direct holdings" column of the above table.

Following the above, the chain of entities through which VALEA FOUNDATION indirectly holds voting rights in the issuer has been modified as follows:

VALEA FOUNDATION has no shareholders and is not controlled by any person; the Board of Directors of VALEA FOUNDATION decides at its sole discretion, without receiving instructions from its beneficiary or from any other person, on the exercise of the voting rights of VALEA FOUNDATION in the undertakings it controls. Mr. Karel Komárek is the sole beneficiary of VALEA FOUNDATION, but he does not control VALEA FOUNDATION within the meaning of Law 3556/2007. VALEA FOUNDATION is the sole shareholder of Valea Holding AG. Valea Holding AG is the sole shareholder of KKCG Holding AG. KKCG Holding AG is the sole shareholder of KKCG Group AG. KKCG Group AG is the sole shareholder of Allwyn AG. KKCG Group AG also directly holds 12% of Allwyn International AG. Allwyn AG is the 83.73% direct shareholder of Allwyn International AG, which together with KKCG Group AG's ownership allows sole control being exercised over Allwyn International AG. Allwyn International AG directly holds 38.96 % of the shares and voting rights in the issuer. In addition, Allwyn International AG is the sole shareholder of Allwyn Greece & Cyprus Holding 2 Ltd, the sole shareholder of Allwyn Greece & Cyprus Holding Ltd which directly holds 15.48% of the shares and the voting rights of the issuer.

In total, VALEA FOUNDATION, indirectly controlled 54.44% of the total share capital and voting rights of the Issuer.

Athens, 27 February 2026