No one know and I think this is no body ever know the addresses of Satoshi Nakamoto.
How you know if Sathosi Nakamoto hold 980,000 of bitcoin? because I think there is no body know for sure about HE/SHE.
Satoshi has kept his identity secret so this itself means that obviously how much btc even if held any would remain untraceable or cannot be known. Else who would not have like to come forward and say they invested this when he world is looking at Satoshi and still searching for them.