Institutional accumulation of Bitcoin ( BTC ) continues at full throttle. On June 25, blockchain data flagged by Arkham Intelligence revealed that BlackRock and Fidelity collectively acquired more than $521 million worth of BTC in a single day. According to the transfer logs, BlackRock’s IBIT ETF address received 4,130 BTC, valued at approximately $436.3 million at the time of transfer, with the purchase coming from Coinbase Prime’s institutional custody, signaling a high-confidence allocation into BlackRock’s spot Bitcoin ETF structure. BlackRock is buying Bitcoin Fidelity is buying Bitcoin Grayscale is buying Bitcoin What do you think happens next? pic.twitter.com/D8Q2p5YIkG — Arkham (@arkham) June 24, 2025 Fidelity wasn’t far behind, snapping up 805 BTC worth $85.2 million, with two separate transfers of 74.5 BTC and 394.27 BTC routed to its FBTC ETF address. Both were executed within hours of each other, pointing to methodical layering of exposure. Institutions load up on Bitcoin Also active was Grayscale, which added 55.1 BTC ($5.8 million) to its GBTC trust, despite its gradual outflow trend over recent months. While smaller in scale, it still adds to the week’s net-positive ETF activity. Bitwise and ARK Invest also recorded sizable movements, with Bitwise shuffling 141.4 BTC between its own addresses and ARK moving nearly 40 BTC internally, routine ETF wallet rebalancing but notable in context. The renewed inflows from top-tier asset managers are especially telling given Bitcoin’s consolidation above $105,000, and increasing expectations around ETF-driven Q3 demand. While retail sentiment has cooled somewhat, institutional positioning suggests that the larger players are preparing for a potential leg higher. The post BlackRock and Fidelity just scooped up over half a billion dollars in Bitcoin appeared first on Finbold .
