I don not think if there are still holding bitcoin since 2010 until now, If there is then maybe that is already a confidential matter to the beholder. This issue is very confidential since having at least 1 BTC can make a person rich. I have 1 BTC last 2015 but I did come into thinking that the value went like this so I decided to sell it since I am in the need of money during those time. Anyway that already have helped me so still okay.