Debevoise & Plimpton LLP is advising Mitsui Sumitomo Insurance Co., Ltd., in its agreement with the founding family of W. R. Berkley Corporation, including acquisition of 15% of shares in W. R. Berkley Corporation. For more information, please see the company’s press release.

Mitsui Sumitomo Insurance Co., Ltd., a subsidiary of MS&AD Insurance Group Holdings, is a leading Japanese property and casualty insurance carrier.

The Debevoise team is led by insurance M&A partner Nicholas Potter, capital markets partner Eric Juergens and insurance M&A counsel Brita Siepker and includes, insurance M&A counsel Jan Buschmann and Robert Fettman, international consultant Clare Swirski, associates Andrea Bell, Thomas DeMarzo, Emma Olcott and Katie Power and law clerks Cailley Silbert, Emma Street and Ayanna Najja Thompson, capital markets associate Alice Gu, tax partner Michael Bolotin and associate Renqiu Chen, antitrust partner Tim Cornell and counsel Kyra Bromley and Anne-Mette Heemsoth, and national security partner Rick Sofield and associate Jordan Corrente Beck.