We really don't know. If we knew with certainty that he sold some bitcoin, then it'd be probable that the buyer knows his real name, and judging by his behavior, there's no chance he would have left the slight traces of Satoshi during a trade.
- Second one is the key to the input Satoshi announced to own when he sent 10BTC from it to Hal Finney back in 2009 as the first bitcoin transaction ever. People have sent coins to that key as well (to the P2PKH version of it) and it hasn't moved either.
What evidence do we have about this? Was it just Hal claiming he received them from Satoshi?