Equities

Buffett's Berkshire Hathaway now largest Mitsui shareholder

US investor continues to increase holdings in Japanese trading companies

20251009N Mitsui logo

Berkshire Hathaway's stake in Mitsui & Co. topped 10% in September. (Photo by Yuji Murakami)

AKIHIRO OTA
October 9, 2025 22:47 JST

TOKYO -- A unit of Warren Buffett's Berkshire Hathaway has become Mitsui & Co.'s top shareholder, the Japanese trading house announced Thursday.

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