Why are all the whales selling ETH?

Three weeks later, the ancient whale that once ICO’d 310,000 $ETH in Ethereum sold 2,679 ETH again, worth $6.47 million

Two hours ago, the whale recharged 2,679 ETH to#Krakenagain, and has transferred a total of 6,679 ETH (about $15.8 million) to the exchange since September 18, and currently has 17,000 ETH left in the wallet