BlackRock and Goldman Sachs have been active participants in the cryptocurrency market in late August 2025, with notable transactions involving Bitcoin and Ethereum. BlackRock sold approximately $190 million worth of Bitcoin on August 25, transferring around 1,703 BTC via Coinbase. However, the firm also made significant purchases shortly after, acquiring 568 BTC valued at $62.6 million and 65,900 ETH worth $314.9 million on the same day, signaling aggressive accumulation. On August 26, BlackRock continued its Ethereum purchases, buying an additional $300 million to $314.9 million worth of ETH and later acquiring 20,000 ETH valued at approximately $89.2 million. These moves indicate a strategic shift from Bitcoin to Ethereum by BlackRock. Meanwhile, Goldman Sachs, with assets totaling around $3 trillion, increased its Bitcoin holdings by $194 million in the second quarter of 2025, bringing its total Bitcoin exposure to about $470 million through ETFs. Additionally, publicly traded firm Boyaa acquired 290 BTC worth $32 million during this period. The activity from these financial giants reflects growing institutional interest in cryptocurrencies as long-term investment vehicles, with a notable rotation from Bitcoin into Ethereum by BlackRock.