Mitsui Sumitomo Insurance acquires at least 12.5% of W. R. Berkley shares

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Reinsurance News - Dec 05, 2025

Mitsui Sumitomo Insurance Co., Ltd. (MSI), a Japanese property and casualty (P&C) insurance carrier, has acquired beneficial ownership of at least 12.5% of W. R. Berkley Corporation’s common stock. This move follows MSI’s agreements with the Berkley Family, which includes a company and tru...

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