It led to the ouster earlier this year of Maurice R. Greenberg as chief executive of the American International Group , a company that he ran for 38 years , and has drawn investigative scrutiny of insurance units of Berkshire Hathaway , the holding company of Warren E. Buffett .
American International Group /business/company/major_shareholders Maurice R. Greenberg
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
American International Group
ORGANIZATION
/business/company_shareholder/major_shareholder_of