An early Ethereum investor transferred 5,082 ETH valued at $10.27 million to Coinbase. The ETH originated from a 23,300.79 ETH withdrawal from Kraken in 2016 at a purchase price of $10.37 each. If sold now, the profit would be approximately $10.215 million, a 19,383% return, indicating significant profit-taking from long-held digital assets.