According to on-chain analyst Ember, Ethereum co-founder Jeffrey Wilcke is preparing to sell ETH again after half a year: he transferred 20,000 ETH (US$72.5 million) to Kraken 50 minutes ago. He has been transferring ETH to Kraken since 2016, and has transferred a total of 288,000 ETH to Kraken for sale so far. The average price is US$861, and the total cash out amount is about US$248 million. He now holds 106,000 ETH (US$384 million).