Stocks making the biggest moves premarket: Coinbase, AMC, Chewy, First Republic and more

Coinbase — Shares of the cryptocurrency trading app dropped more than 11% in premarket trading after Coinbase received a Wells notice from the Securities and Exchange Commission. Oppenheimer also downgraded the stock to perform from outperform, citing the Wells notice and concerns over blockchain development in the U.S. The Biden administration also criticized the overall digital asset sector. Jefferies and Key Banc also raised concerns surrounding Coinbase.