Record Single-Day Bitcoin Transfer Flagged by On-Chain Trackers @BlackRock has moved 7,048 $BTC, valued at roughly $517 million, into Coinbase Prime, according to on-chain data cited by Looko
@BlackRock has moved 7,048 $BTC, valued at roughly $517 million, into Coinbase Prime, according to on-chain data cited by Lookonchain. The transfer is described as the largest single-day net outflow of $BTC from the firm's institutional holdings since the launch of its spot Bitcoin product.
The movement stands out against a backdrop of elevated Bitcoin custody activity involving BlackRock in recent weeks. Between May 18 and May 22, 2026, BlackRock moved thousands of $BTC out of custody wallets through daily transactions, with the transfers directed to Coinbase Prime, the institutional trading desk BlackRock uses to settle redemptions from its iShares Bitcoin Trust, known as IBIT.
Large on-chain moves from BlackRock to Coinbase Prime are not automatically sales. When investors redeem ETF shares, the process runs in reverse and assets move back out to Coinbase Prime. These custody transfers can look like large sells on-chain even when they are routine settlement steps.
Coinbase Prime is a full-service prime broker of Coinbase, Inc., which is an affiliate of the iShares Bitcoin Trust ETF custodian. BlackRock's iShares Bitcoin Trust (IBIT) is a spot Bitcoin ETF that was approved by the U.S. Securities and Exchange Commission (SEC) on January 11, 2024.
The scale of today's transfer does, however, reflect a period of notable outflow pressure. A prior tranche sent to Coinbase Prime on May 27 alone represented more than 57% of the total daily outflow from the entire U.S. spot ETF market, which closed that day with $333.71 million in net outflows. Whether the current movement reflects continued redemption pressure or a shift in institutional positioning remains unclear from on-chain data alone.
April 2026 had been the strongest month of the year for spot Bitcoin ETFs, pulling in $1.97 billion in net inflows, and the sharp reversal in May reflected a change in market conditions rather than a sustained structural shift in institutional appetite.
Source: Lookonchain
Sources:NFT Plazas: BlackRock Bitcoin ETF Records Over $1 Billion in Outflows in a Single WeekCryptoBreaking: BlackRock Moves $192M Bitcoin as IBIT Outflows Shake ETF MarketBlackRock: iShares Bitcoin Trust ETF (IBIT) Official Product Page
