Wu said that, according to @EmberCN monitoring, the Radiant Capital hacker sold 9,631 ETH at a price of $4,562 on August 12, and bought back 4,914 ETH yesterday at a price of $4,167. Another unknown hacker sold 4,957 ETH at a price of $4,464 on August 15, and two hours ago bought back 5,001 ETH for 21.76 million DAI at a price of $4,352.