An unidentified institutional investor has been accumulating a massive amount of Ether (ETH), spending nearly $940 million in just one week to push the cryptocurrency’s price past the $4,500 mark. Blockchain analytics firm Lookonchain revealed this entity acquired 221,166 ETH over the last seven days, buying approximately $212 million worth of ETH within the last 24 hours alone. This large-scale buying spree has coincided with a surge in Ethereum holdings, with the number of addresses holding more than 10,000 ETH hitting its highest point in a year – 868,886 according to Glassnode. The cryptocurrency’s market cap also jumped past Mastercard’s valuation, reaching $523 billion on Monday.