BlackRock pulled 883.6 Bitcoin, worth roughly $54.8 million, out of Coinbase Prime. On-chain analytics platform Onchain Lens tracked the transaction, flagging the withdrawal as part of a now-familiar pattern tied to BlackRock’s iShares Bitcoin Trust, better known as IBIT. IBIT is the largest U.S. spot Bitcoin ETF by assets under management.
Custody moves, not exit moves
The key distinction here is liquidation versus custody adjustment. BlackRock is not selling. It’s reorganizing where the Bitcoin sits.
BlackRock amended its custody agreement with Coinbase in 2024, including a requirement for Coinbase to execute withdrawals within a 12-hour window. The firm also diversified its custodial framework by bringing Anchorage Digital into the mix by 2025, reducing concentration risk across a multi-billion-dollar Bitcoin portfolio.
The $54.8 million withdrawal looks smaller in context. Earlier in April 2026, BlackRock moved 3,899 BTC, worth approximately $290 million. On May 16, the firm pulled 1,768 BTC, valued at around $140.3 million. Then in early July 2026, BlackRock moved over 22,000 BTC, worth approximately $1.42 billion, back into Coinbase.
