A giant whale bought back 5,093 ETH with 12.11 million U 2 hours ago

According to the monitoring of chain analyst Aftermath, a giant whale bought back 5,093 ETH with 12.11 million U 2 hours ago, making his ETH count from 3,586 to 5,515 by two high sells and low sells. 5/21, $3,667 to sell 3,586 ETH for 1,315,000 U; followed up by using that 1,315,000 U to buy back 5,236 ETH for $2,512; 
On September 2, sold 4,818 ETH for 12.11 million U at $2,514 to escape the drop; used that 12.11 million U to buy back 5,093 ETH at $2,378 after today's drop.