Hmm.. Even if it was his, we would never fully know.
I just dont understand he can make something like this, and then just leave bitcoin.
He might have... He might havent.
We dont know.
We never know , as it's said , he has left his coins as they are for now , so am sure he won't be leaving them in one place but some many places , so it might be just lying around as one of them .
I remember seeing a post where "Satoshi sent himself some satoshis"

after the genesis block
There is no way for us to know who he was, or what are his addresses. And even if we could, why would we want to know,
lets respect him enough not to pick around on what he may or may not own. He have us something awesome, lets be greatful for that
cheers
We all do respect his privacy but it's just awesome seeing how such old coins are lying there, as i have been interested in some POS altcoins before , i was thinking how much would it stake if BTC had POS