Marubeni Corporation announced on May 7, 2026, that Berkshire Hathaway increased its ownership stake.
National Indemnity Company, a Berkshire subsidiary, raised its holding to 10.10% as of May 6, 2026. Berkshire Hathaway is now the largest major shareholder in the Japanese trading house.
This transaction expands a strategic investment in Japan’s major trading houses that began in 2020. Crossing the 10% threshold signals ongoing conviction in the Japanese trading sector under Berkshire’s leadership.