Opap S.A. — Major Shareholding Notification 2026

Apr 30, 2026

CSSF

Commission de Surveillance

du Secteur Financier

ANNEX B

Form to be used for the disclosure of the total number of voting rights and capital, in accordance with the Law and Grand-ducal Regulation of 11 January 2008 on transparency requirements for issuers

1. Identity of the issuer or the underlying issuer of existing shares to which voting rights are attached¹ (including the issuer reference number allocated by the CSSF)

Allwyn AG - LEI 213800M4NRGFJCI34834 - CSSF ID E3870

1. Identity of the notifier (if another person makes the notification on behalf of the issuer)

LOYENS & LOEFF LUXEMBOURG SARL

1. Total number of shares composing the share capital of the notifying issuer

806.782.473

1. Total number of voting rights attached to the shares composing the share capital of the notifying issuer, including the suspended voting rights²

806.782.473

1. Total number of voting rights, excluding suspended voting rights (exercisable voting rights) (optional)

773.293.881

1. Origin of the change

Increase of the share capital following an issuance of new shares.

1. Date when the change occurred

29/04/2026

1. In the previous notification (optional)

2. the total number of shares was of

3. the total number of voting rights was of

4. the total number of exercisable voting rights was of

¹ Either the full name of the legal entity or another method for identifying the issuer or underlying issuer, provided it is reliable and accurate.

² For further details on the total number of voting rights, please refer to point 1(b) of Circular CSSF 08/349.

³ As, for example, a capital increase or reduction.