Investigators in the New York attorney general 's office are examining communications involving the chairman of Berkshire Hathaway , Warren E. Buffett , and the chief executive of a unit of Berkshire who arranged a questionable transaction with Maurice R. Greenberg when he was chief executive of the American International Group .
American International Group /business/company/major_shareholders Maurice R. Greenberg
Maurice R. Greenberg /people/person/place_of_birth New York
Maurice R. Greenberg /business/company_shareholder/major_shareholder_of American International Group
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American International Group
ORGANIZATION
Maurice R. Greenberg
PERSON
/business/company/major_shareholders
Maurice R. Greenberg
PERSON
New York
LOCATION
/people/person/place_of_birth
Maurice R. Greenberg
PERSON
American International Group
ORGANIZATION
/business/company_shareholder/major_shareholder_of