BlackRock Moves 3,966 BTC to Coinbase Prime BlackRock has transferred 3,966 $BTC to Coinbase Prime in a single transaction valued at approximately $244.4 million, according to on-chain data.
BlackRock has transferred 3,966 $BTC to Coinbase Prime in a single transaction valued at approximately $244.4 million, according to on-chain data. The move points to active settlement and rebalancing activity as the asset manager continues to handle rising demand through its spot Bitcoin ETF, the iShares Bitcoin Trust (IBIT).
Transfers of this kind are a routine feature of how large ETF operators manage their underlying holdings. Asset managers like BlackRock use custodial platforms such as Coinbase Prime to facilitate the creation and redemption of ETF shares, adjusting positions as capital flows in or out of the fund. The deposits do not necessarily signal a directional trade in the open market.
The latest transfer follows a period of volatile ETF flows. IBIT holds roughly $59 billion in assets and accounts for close to 4% of Bitcoin's total supply, making it the largest single vehicle for institutional Bitcoin exposure. Earlier in the year, the fund posted strong inflows, recording net inflows on 48 of 62 trading days during Q1 2026, totalling an estimated $8.4 billion for the quarter.
More recently, sentiment has shifted. IBIT recorded $213.63 million in net outflows on June 5, 2026, as the broader US spot Bitcoin ETF complex extended a redemption streak that has pulled $4.4 billion over 13 consecutive trading days. Against that backdrop, on-chain transfers of this scale reflect the operational demands of managing a fund that regularly processes large inflows and outflows from institutional and sovereign wealth participants.
BlackRock has made a series of similar deposits to Coinbase Prime throughout 2026. In early March, the firm moved 3,810 BTC worth approximately $260 million, amid a surge in ETF inflows and institutional rebalancing. The frequency and size of these transactions underline the operational scale now required to support one of the world's most actively traded crypto investment products.
Sources:BitcoinWorld: BlackRock Moves $147.5M in Bitcoin and Ethereum to Coinbase PrimeCoinFomania: BlackRock Moves 3,810 BTC in Major Coinbase Prime TransferCoinDesk: BlackRock Bitcoin ETF Sheds $528 Million
