BLABlackRock
BlackRock entered Bitcoin custody in January 2024 following SEC approval of its spot BTC ETF (ticker: IBIT). The fund quickly became one of the largest BTC products globally, accumulating hundreds of thousands of Bitcoin within months. On-chain data reveals the investment firm now operates multiple verified wallets across the Bitcoin network, holding substantial amounts in cold storage infrastructure managed through institutional custodians.
The tracked addresses on this page were attributed to BlackRock through a combination of public SEC filings, regulatory announcements, and on-chain clustering analysis that links wallet activity to the firm's known operational patterns. All identified holdings are secured via Coinbase Custody, the institutional-grade storage solution that BlackRock selected for IBIT operations. This custodial arrangement reflects institutional best practices for large-scale fund management and regulatory compliance.
BlackRock's Bitcoin holdings flow through Coinbase Custody's segregated accounts, which employ multi-signature security and offline key storage. The addresses tracked here show minimal transaction churn, consistent with a buy-and-hold fund structure. Inflows correspond directly to IBIT subscription activity, making the on-chain footprint a proxy for retail and institutional demand for the product.
