About a week ago, whale 0x3c9E panic sold 38,582 $ETH($136.89M) at $3,548 amid the drop.

Today, as $ETH rebounds, they bought back 1,800 $ETH($7.22M) at a much higher price of $4,010.

https://intel.arkm.com/explorer/address/0x3c9Ea5C4Fec2A77E23Dd82539f4414266Fe8f757