Wienerberger : Major holdings notification pursuant to Sec. 130-134 BörseG 2018 – The Goldman Sachs Group, Inc.

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Major holdings notification pursuant to Sec. 130 to 134 BörseG 2018 London, 1.6.2026 Overview Notification made after deadline Caution: In case of violations of major holdings notification rules, please pay attention to Section 137 BörseG 2018 (Suspension of voting rights) 1. Issuer: Wienerberger AG 2. Reason for the notification: Acquisition or disposal of financial/other instruments 3. Person subject to notification obligation Name: The Goldman Sachs Group, Inc. City: Wilmington, DE Country: United States of America (USA) 4. Name of shareholder(s): 5. Date on which the threshold was crossed or reached: 28.5.2026 6. Total positions % of voting rights attached to shares (7.A) % of voting rights through financial/other instruments (7.B.1 + 7.B.2) Total of both in % (7.A + 7.B) Total number of voting rights of issuer Resulting situation on the date on which threshold was crossed / reached 1,28 % 2,59 % 3,87 % 109 497 697 Position of previous notification (if applicable) 1,05 % 3,10 % 4,15 % Details 7. Notified details of the resulting situation: A: Voting rights attached to shares ISIN Code Number of voting rights % of voting rights Direct (Sec 130 BörseG 2018) Indirect (Sec 133 BörseG 2018) Direct (Sec 130 BörseG 2018) Indirect (Sec 133 BörseG 2018) US9676621074 234 0,00 % AT0000831706 1 397 058 1,28 % SUBTOTAL A 1 397 292 1,28 % B 1: Financial / Other Instruments pursuant to Sec. 131 para. 1 No. 1 BörseG 2018 Type of instrument Expiration Date Exercise Period Number of voting rights that may be acquired if the instrument is exercised % of voting rights Securities Lending Open N/A 1 631 948 1,49 % SUBTOTAL B.1 1 631 948 1,49 % B 2: Financial / Other Instruments pursuant to Sec. 131 para. 1 No. 2 BörseG 2018 Type of instrument Expiration Date Exercise Period Physical / Cash Settlement Number of voting rights % of voting rights Swap 27/05/2036 N/A Cash 1 185 278 1,08 % Call Option 02/06/2026 N/A Cash 1 067 0,00 % Call Warrant 31/12/2030 N/A Cash 22 323 0,02 % SUBTOTAL B.2 1 208 668 1,10 % 8. Information in relation to the person subject to the notification obligation: Person subject to the notification obligation is not controlled by any natural person or legal entity and does not control any other undertaking(s) holding directly or indirectly an interest in the (underlying) issuer. Full chain of controlled undertakings through which the voting rights and/or the financial/other instruments are effectively held starting with the ultimate controlling natural person or legal entity: No. Name Directly controlled by No. Shares held directly (%) Financial/other instruments held directly (%) Total of both (%) 1 The Goldman Sachs Group, Inc. 2 Goldman Sachs (UK) L.L.C. 1 3 Goldman Sachs Group UK Limited 2 4 Goldman Sachs International 3 0,38 % 1,21 % 1,59 % 5 GSAM Holdings LLC 1 6 Goldman Sachs Asset Management, L.P. 5 0,05 % 0,00 % 0,05 % 7 Goldman Sachs Bank USA 1 8 Goldman Sachs Bank Europe SE 7 0,00 % 0,32 % 0,32 % 9 Goldman Sachs Asset Management Holdings LLC 5 10 Goldman Sachs Asset Management UK Holdings I Ltd 9 11 Goldman Sachs Asset Management UK Holdings II Ltd 10 12 Goldman Sachs Asset Management Holdings I B.V. / Goldman Sachs Asset Management Holdings II B.V. 11 13 Goldman Sachs Asset Management Holdings B.V. 12 14 Goldman Sachs Asset Management International Holdings B.V. 13 15 Goldman Sachs Asset Management B.V. 14 0,67 % 0,00 % 0,67 % 16 GSAMI Holdings I LLC 5 17 GSAMI Holdings II Ltd 16 18 Goldman Sachs Asset Management International Holdings Ltd 17 19 Goldman Sachs Asset Management International 18 0,18 % 0,00 % 0,18 % 20 Goldman Sachs & Co. LLC 1 0,00 % 1,07 % 1,07 % 9. In case of proxy voting Date of general meeting: - Voting rights after general meeting: - is equivalent to - voting rights. 10. Sonstige Kommentare: - London am 1.6.2026

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