A Bitcoin whale wallet dating back to late 2016 woke up from dormancy and moved 3,000 BTC in a single transaction.The whale's Bitcoin stack went from $3M in early 2017 to over $250M at the time of the transfer.In a separate transaction, a billionaire Bitcoin whale purchased 2,400 BTC worth approximately $200 million.BlackRock, the world's largest asset manager, bought a further 4,054 Bitcoin, bringing its total holdings to 573,878 BTC.