On-Chain Data Confirms $403M Bitcoin Move BlackRock has moved 6,005 $BTC, valued at approximately $403 million, to a Coinbase Prime deposit address, according to on-chain data. The transfer i
BlackRock has moved 6,005 $BTC, valued at approximately $403 million, to a Coinbase Prime deposit address, according to on-chain data. The transfer is among the largest single Bitcoin movements linked to the asset manager recorded in recent months and adds to a growing series of ETF-related flows routed through Coinbase Prime in 2026.
These transfers are a routine but closely watched feature of how BlackRock manages its iShares Bitcoin Trust (IBIT). Coinbase Prime serves as the primary venue for BlackRock's ETF-related crypto flows, handling creation and redemption activity that keeps the fund's on-chain holdings aligned with investor demand. Analysts generally treat movements of this kind as operational rather than speculative, though their scale can still influence short-term market sentiment.
The transfer comes against a backdrop of sustained, if uneven, institutional engagement with Bitcoin. Since the SEC approved spot Bitcoin ETFs in January 2024, cumulative inflows have reached $58.72 billion as of May 2026. BlackRock's IBIT has been the dominant vehicle for that demand. The fund commands roughly 49% of total US spot Bitcoin ETF assets, putting it well ahead of Fidelity's FBTC and Grayscale's GBTC.
IBIT recorded net inflows on 48 of 62 trading days during Q1 2026, with those flows totaling an estimated $8.4 billion for the quarter. More recently, the picture has been mixed. The trend reversed sharply during the second half of May, with more than $2 billion leaving US spot Bitcoin ETFs over a two-week period as investors reduced exposure amid heightened geopolitical risks, elevated Treasury yields, and inflation concerns.
Large on-chain transfers like today's move serve as a reminder that regardless of near-term flow volatility, BlackRock continues to manage a substantial and active Bitcoin position on behalf of institutional clients. The regularity of these Coinbase Prime deposits underscores the infrastructure now supporting institutional-scale Bitcoin ownership through regulated products.
Sources:CoinDesk: BlackRock moves over $430 million in Bitcoin and Ether to Coinbase PrimeCoinCentral: BlackRock Shifts BTC and ETH into Coinbase Prime CustodyIG: Bitcoin Outlook 2026 - ETF Outflows and Institutional Demand
