According to crypto tracker Whale Alert, 1,500 BTC was recently transferred from a Bitfinex address to a Kraken address. This transfer is worth approximately $140 million at the current BTC price. The reason for this large transfer is unknown, but it could be related to a number of factors, such as arbitrage, trading, or custody. It is also possible that the transfer is part of a larger strategy by Bitfinex or Kraken to move their BTC holdings between exchanges. Whatever the reason, this transfer is a significant event in the crypto markets and is likely to be closely watched by investors and traders.