According to @EmberCN, a whale/institution that bet on the ETH ecosystem has begun selling $UNI tokens. In the past hour, they transferred 490,000 UNI (worth $5.38M) to Binance for sale and sold 50,000 UNI (worth $0.54M) on-chain. Since May 24, they have purchased $36.4M worth of ETH ecosystem tokens through multiple addresses, including 1.237 million UNI (worth $12.5M). Their average purchase price for UNI was approximately $10.1.