Between August 18 and August 22, 2025, substantial cryptocurrency transactions involving Bitcoin (BTC) and Ethereum (ETH) were recorded, primarily involving Coinbase Institutional, Cumberland, and other wallets. Large BTC transfers include 499 BTC ($57.8 million) and 502 BTC ($58.3 million) moving from unknown wallets to Coinbase Institutional, as well as a notable 2,499 BTC ($284.4 million) transfer from an unknown wallet to Coinbase Institutional on August 19. Coinbase Institutional also moved 900 BTC ($103.8 million) internally and transferred 1,133 BTC ($131.7 million) to an unknown wallet. Ethereum transfers were similarly large, with multiple transactions involving Cumberland and Coinbase Institutional. Notable ETH movements include 24,810 ETH ($107.1 million) from Cumberland to Coinbase Institutional, 35,999 ETH ($157 million) from unknown wallets to Coinbase Institutional, and a 64,992 ETH ($276.7 million) transfer between unknown wallets. Other entities involved in ETH transfers include Binance and FalconX. Additionally, a wallet possibly linked to WLFI swapped $5 million USDC for 1,076 ETH. The volume and frequency of these transactions indicate active large-scale trading and movement of digital assets among major institutional and unknown wallets during this period.