MBB SE increases Share Buyback Program 2025 to €25 million and extends duration

Disclosure of inside information acc. to Article 17 MAR Berlin, 13 April 2026 – MBB SE (ISIN DE000A0ETBQ4), a medium-sized family-owned company, has today resolved to make use of the authorisation granted by the Annual General Meeting on 17 June 2025 to acquire its own shares in accordance with Section 71(1)(8) 8 of the German Stock Corporation Act (AktG) and to adjust the Share Buyback Programme 2025 announced on 09 December 2025 and commenced on 11 December 2025. In view of the attractive valuation of the MBB share, the maximum buyback volume is being increased to €25.0 million (originally €22.0 million). This leaves more than €6.5 million available for further buybacks. In addition, the term of the share buyback program is extended until 22 May 2026 (originally limited to 14 April 2026). All other terms of the Share Buyback Program 2025, in particular the maximum price per share of €222.00, remain unchanged. The share buyback is being carried out in accordance with the safe-harbour provisions of Article 5 of Regulation (EU) No 596/2014 of the European Parliament and of the Council of 16 April 2014, in conjunction with the provisions of Commission Delegated Regulation (EU) 2016/1052 of 8 March 2016. All details of the share buyback program will be published at www.mbb.com/ir/buyback.   MBB SE Kurfürstendamm 188 10707 Berlin Tel +49 30 844 15 330 ir@mbb.com www.mbb.com   Verwaltungsratsvorsitzender und Geschäftsführender Direktor Dr. Christof Nesemeier Geschäftsführender Direktor Torben Teichler   Registergericht Amtsgericht Berlin-Charlottenburg, Registernummer: HRB 165458
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Torben Teichler