TOKYO, March 17 (Reuters) - Warren Buffett's Berkshire

Hathaway ( BRK/A ) raised its holdings in five Japanese trading

houses, regulatory filings showed on Monday.

Berkshire's stake in Mitsui & Co ( MITSF ) rose to 9.82% from

8.09%, while its holdings in Mitsubishi Corp ( MSBHF ), Sumitomo

Corp ( SSUMF ), Itochu ( ITOCF ) and Marubeni ( MARUF ) also rose

by some percentage points, according to documents filed to

Japan's securities watchdog by its unit, National Indemnity

Company.

(Reporting by Tokyo Newsroom; Editing by Muralikumar

Anantharaman)