In a filing with the Securities and Exchnage Commission , Buffett said he bought 62,900 additional common shares of the Boston-based real estate investment trust at prices ranging from $ 7.65 to $ 8.02 a share .
<response> In a filing with the <organization>Securities and Exchnage Commission</organization> , <person>Buffett</person> said he bought 62,900 additional common shares of the <misc>Boston-based</misc> real estate investment trust at prices ranging from $ 7.65 to $ 8.02 a share . </response>