There is a 99% that's it him I guess but why & why in the world he never touched his BTC if it's his or even anyone else BTC 
Unless he is a millionaire I don't see why he didn't touch his Bitcoins to be honest , maybe lost private keys ? but I don't think a careful about privacy as Satoshi could simply lose his private keys
Unless he is a millionaire I don't see why he didn't touch his Bitcoins to be honest , maybe lost private keys ? but I don't think a careful about privacy as Satoshi could simply lose his private keys
He may be millionaire or he may be running some sort of big bitcoin service that's making him $$$ and he use that untouched millions to keep bitcoins value up.