'Mr.100' (1Ay8v), the famed Bitcoin whale, has recently added 450 BTC to their portfolio, bringing their total holdings to 69,150 BTC, worth approximately $4.1 billion. Despite speculation regarding the whale's identity, linking it to a Middle Eastern billionaire or Upbit's cold wallet, no official confirmation exists. ARKM, a blockchain analysis platform, has labeled the address as Upbit's cold wallet. However, this remains unverified. 'Mr.100's latest purchase highlights the growing interest in Bitcoin from institutional investors, recognizing its potential as a store of value and long-term investment amidst global economic uncertainty.