Coinbase Institutional transferred 1,141 BTC, valued at approximately $91.2 million, to an unknown new wallet. The movement was flagged by on-chain monitoring tools as a significant outflow from the exchange's institutional custody accounts. The transfer represents one of the larger recent withdrawals from Coinbase Institutional, drawing attention from market participants tracking potential whale activity and exchange reserve changes. The destination wallet has no prior transaction history, making its ownership currently unidentified.