Alibaba reportedly sold about $500 million of ZTO Express ADRs through an unregistered block trade on Monday. According to Sina Finance, citing people familiar with the matter, the transaction involved 25 million ZTO Express ADRs priced at $20.02 each, the low end of a $20.02 to $20.22 marketing range and 4.5% below Friday's $20.96 close. ZTO Express ADRs fell 7.2% on Monday to close at $19.45.