James Fickel, previously known as the largest ETH/BTC rate bull, has transferred 39,800 ETH, valued at $172 million, to Coinbase Prime. This move comes after Fickel suffered a significant loss of 20,600 ETH last year, which is currently valued at $90 million, due to his bullish position on the ETH/BTC rate. Despite these losses, Fickel's Coinbase Prime custodial wallet still holds 57,000 ETH, worth approximately $249 million.