
TOKYO, March 17 (Reuters) - Warren Buffett's Berkshire Hathaway BRKa.N raised its holdings in five Japanese trading houses, regulatory filings showed on Monday.
Berkshire's stake in Mitsui & Co 8031.T rose to 9.82% from 8.09%, while its holdings in Mitsubishi Corp 8058.T, Sumitomo Corp 8053.T, Itochu 8001.T and Marubeni 8002.T also rose by some percentage points, according to documents filed to Japan's securities watchdog by its unit, National Indemnity Company.