BlackRock transferred 54,096 ETH and 2,015 BTC to Coinbase Prime, according to Lookonchain. The ETH was valued at $131.7 million and the BTC at $153.8 million. Coinbase Prime provides institutional investors with custody, trading and financing services, so the deposits may support operational activity beyond asset sales. Existing reporting linked the transfers to the management of BlackRock’s iShares Bitcoin Trust (IBIT) and iShares Ethereum Trust (ETHA), with recurring movements reflecting possible subscriptions, redemptions and other fund operations.