Sobel is the managing member of DTF Holdings, LLC. Prior to forming DTF Holdings, he was an employee of Goldman Sachs & Co. from 1987 to 2008, serving as a partner managing director from 1998 to 2008. While at Goldman Sachs, Sobel was global head of the mortgage department, global head of money markets, head of the firm’s Global Bank Group, and chief risk officer for Goldman Sachs Asset Management. He also was a member of Goldman Sachs’ capital, risk and finance committees.