Her big reward was part of a $3.1 billion dollar payday at the company last week after restrictions on insider trading expired. Making friends: Facebook Chief Operating Officer Sheryl Sandberg talks to the press at a Seoul, Korea hotel on September 14, 2012. Passing by: Sandberg passes Google co-founder Sergey Brin, left, at the Allen & Company Sun Valley Conference in Sun Valley, Idaho, on July 12, 2012.