According to Lookonchain, BlackRock has deposited 4,113 BTC (valued at $429.4 million) to Coinbase Prime two hours ago, marking its first significant move to potentially sell Bitcoin after over a month of consistent buying activity (source: Lookonchain via Twitter, intel.arkm.com). This large-scale deposit signals a possible shift in institutional sentiment and could increase short-term BTC volatility, with traders closely monitoring for further sell-side pressure and potential price corrections. The move is notable as BlackRock's previous consistent accumulation had supported bullish sentiment in the crypto market.