Mitsui Sumitomo Insurance acquires 12.5% stake in W. R. Berkley

W. R. Berkley said it has been informed that Mitsui Sumitomo Insurance (MSI) has acquired beneficial ownership of at least 12.5% of the company’s outstanding common stock. The purchase was made under previously announced agreements between MSI and entities owned by members of the Berkley family; none of MSI’s shares were purchased from the Berkley family or the company.

Under the agreements, MSI’s shares will generally be voted according to the Berkley family’s recommendations, except in limited cases where MSI’s shares will be voted proportionally with all other shareholders. MSI expects to complete its investment under the agreements in the first quarter of 2026.