Top 10 largest M&A in Europe's Financial Sector in 2025
- Valerie Charoux
- Aug 23
- 3 min read
Updated: Aug 24

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Financial News Europe – Here is the Ranking of the Top 10 largest Mergers and Acquisitions (M&A) deals in the Financial Sector in the EMEA region in the first half of 2025, according to Datasite:
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Top 10 largest M&A deals in Europe's Financial Sector in 2025:
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1 - Mediobanca – Banca di Credito Finanziario SpA - Italy
The largest M&A deal in Europe's financial sector in the first half of 2025 is Italian bank Mediobanca that sold a 100% Stake to Banca Monte dei Paschi di Siena SpA for a value of 13.185 million euros on January 24, 2025.
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2 - Baloise Holding Ltd – Switzerland
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The 2nd largest M&A deal in Europe's financial sector in the first half of 2025 is Swiss Baloise Holding Ltd that sold a 100% Stake to Helvetia Holding AG for a value of 9.391 million euros on April 22, 2025.
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3 - Santander Bank Polska SA - Poland
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The 3rd largest M&A deal in Europe's financial sector in the first half of 2025 is a 49% Stake of Polish Santander Bank Polska SA was sold by Banco Santander SA to Erste Group Bank AG for a value of 6.356 million euros on May 5, 2025.
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4 - Novo Banco SA - Bank of Portugal, Portuguese Republic
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The 4th largest M&A deal in Europe's financial sector in the first half of 2025 is a 100% stake of Portuguese bank Novo Banco SA that was sold by Lone Star Global Acquisitions Ltd - Portuguese Republic - Bank of Portugal to BPCE Group for a value of 6.400 million euros on June 13, 2025.
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5 - Banca Generali SpA – Italy
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The 5th largest M&A deal in Europe's financial sector in the first half of 2025 is a 100% stake of Italian bank Banca Generali SpA that was sold by Assicurazioni Generali SpA to Mediobanca – Banca di Credito Finanziario SpA for a value of 6.191 million euros on April 28, 2025.
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6 - Natixis Investment Managers SA – France
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The 6th largest M&A deal in Europe's financial sector in the first half of 2025 is a 100% stake of French Natixis Investment Managers SA (asset management operations) that was sold by Assicurazioni Generali SpA; BPCE Group to Generali Investments Holding SpA for a value of 4.750 million euros on January 21, 2025.
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7 - Banca Popolare di Sondrio SpA – Italy
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The 7th largest M&A deal in Europe's financial sector in the first half of 2025 is a 100% stake of Italian Bank Banca Popolare di Sondrio SpA that was sold by Unipol Assicurazioni SpA to BPER Banca SpA for a value of 4.307 million euros on February 6, 2025.
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8 - Viridium Group GmbH & Co. KG – Germany
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The 8th largest M&A deal in Europe's financial sector in the first half of 2025 is a 100% stake of German Viridium Group GmbH & Co. KG that was sold by Cinven Ltd. to Hannover Rueck SE; Allianz SE; BlackRock Inc.; T&D Holdings Inc.; Generali Investments LLC for a value of 3.500 million euros on March 19, 2025.
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9 - OSTTRA Group Ltd. – United Kingdom
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The 9th largest M&A deal in Europe's financial sector in the first half of 2025 is a 100% stake of British OSTTRA Group Ltd. that was sold by S&P Global Inc.; CME Group Inc to KKR & Co. Inc. for a value of 2.727 million euros on April 14, 2025.
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10 - Grupo Catalana Occidente SA – Spain
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The 10th largest M&A deal in Europe's financial sector in the first half of 2025 is a 37.97% Stake of Spanish Grupo Catalana Occidente SA that was sold to INOC SA; Co Sociedad de Gestion y Participacion SA for a value of 2.241 million euros on March 27, 2025.
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