Bitcoin whales, referring to investors with holdings of 1,000 to 10,000 coins, have seen notable growth in the past five weeks.On-chain data from Santiment shows that the number of whale-sized Bitcoin wallets has reached its highest level since December 2020.The growth in whale entities suggests that big-money investors view the recent price levels as potential profitable entry points into Bitcoin.The buying activity from whales during a period of Bitcoin's price stagnation indicates a sign of confidence in the market.