Because Ernesto is not a mining company, it would bring EE 0 Value buying it himself. UUU is a stable Uranium mining company, Dell is a stable manufacturing company, CUU is a discovery venture company. Sometimes big companies like DELL go private to consolidate the company and make more profit since being Public costs alot of money eventually 10 years down the road they will go Public again as Private investors want to get paid out over time. Happend to CDW they got bought by Madison Dearborn using private investors money and they will in the near future look to going back public.