4. Amazon.com (AMZN)
Amazon, cloud services, and e-commerce behemoth was another top performer in 2020, with a year-over-year gain of 70%. Hedge funds’ net holdings of Amazon remained the fourth-largest in 2021, but fund managers reduced their net holdings slightly in the fourth quarter. David Tepper’s Appaloosa Management fund has Amazon as its second-largest holding. Tepper began building his Amazon stake in the first quarter of 2019, and he was still adding to it as 2021 approached. Tepper now owns 197,700 shares of AMZN stock, worth about $620 million, after purchasing 56,200 shares in the fourth quarter.