According to ChainCatcher, Spot On Chain monitors that after four months of silence, an old Ethereum whale cashed out 12,979 ETH this week for a profit of $34.3 million. The whale initially withdrew 21,632 ETH from ShapeShift and Poloniex at $7.074/ETH in 2016, and has sold 15,879 ETH since May, netting $43.5 million at an average price of $2,739. He currently still holds 5,760 ETH ($15.5 million).