BlackRock Transfers $226M in Bitcoin and Ethereum to Coinbase Prime for ETF Rebalancing

Key Takeaways:

• BlackRock moved 1,021 BTC ($118M) and 25,707 ETH ($107M) to Coinbase Prime on October 27, 2025, totaling $226 million in crypto deposits.
• The transactions, completed within minutes, are believed to be part of ETF liquidity management and portfolio rebalancing.
• The move reinforces institutional dominance in crypto markets as Bitcoin nears $115,000 and Ethereum trades above $4,100 amid record inflows into digital asset funds.

BlackRock, the world’s largest asset manager with nearly $10 trillion in assets under management, executed another major crypto transfer this week. Blockchain analytics data confirmed that 1,021 Bitcoin and 25,707 Ethereum were sent to Coinbase Prime, BlackRock’s preferred institutional custody and trading platform.

The overall price of the transfer, estimated to be between $226 million has generated heated debates among analysts and traders, giving rise to institutional positioning in the ongoing crypto boom.

Read More: BlackRock’s $87B Bitcoin Trust Spurs New ETF Move as Crypto Yield Strategies Accelerate

On-chain data shows that on October 27, 2025, at 10:27-00:33 UTC, BlackRock transferred Bitcoin and Ethereum. The Bitcoin transaction consisted of four batches of transactions, three moves of 300 BTC and a final move of 121 BTC amounting to 1 021 BTC, which was worth about $118 million at a market price of $115,445 per Bitcoin.

Equally, the Ethereum transactions were carried out in three batches; a deposit of 100,000 ETH, a deposit of 100,000 ETH, and a deposit of 5707 ETH, worth approximately $107 million in total, with Ethers trading at approximately $4,172 at the date.

The accuracy and timing of the deposits give the impression of algorithmic trading, probably of automated ETF fund rebalancing or liquidity provisioning and not of a single discretionary buy or seller.

BlackRock also operates a number of spot crypto ETF, such as the iShares Bitcoin Trust (IBIT) which was opened in January 2024 and the iShares Ethereum Trust (ETHA) opened later that July. The funds manage hundreds of thousands of BTC and millions of ETH of institutional investors.

The new liquidity optimization practices in the management of ETFs are consistent with the new transfers to Coinbase Prime. The same type of movements can be seen earlier this month in the form of a $314 million Bitcoin and a $115 million Ethereum transfer. This accumulation of deposits shows that ETF maintenance was systematic and not a reactionary step.

BlackRock has Coinbase Prime as its main crypto-custody, settlement, and over-the-counter trading partner. The platform provides cold storage separation and institutional-level compliance – a major demand of large ETF operators according to U.S. regulatory requirements.

Using the Coinbase Prime, BlackRock guarantees a transparent and liquid operation of its ETF products. Such transfers are often secured by fund creation and redemption operations such that authorized participants can match the supply of ETF shares with on-chain asset support.

The two giants have increasingly integrated as the spot Bitcoin ETF approvals at BlackRock have strengthened the position of Coinbase as the choice of institutional digital asset exposure.

Read More: BlackRock’s $547M Ethereum Bet Signals Bold Pivot, 5x Heavier ETH Focus Than Bitcoin

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