Key Points Sales of Pfizer's COVID-19 products have collapsed. Thanks to heavy investment fueled by COVID-related revenue, Pfizer has a big pipeline of new potential blockbuster drugs. Cancer treatments Pfizer acquired from Seagen in 2023 are driving growth. 10 stocks we like better than Pfizer › It's been a rough few years to be a Pfizer (NYSE: PFE) shareholder. Shares of the big pharma stock are down about 61% from a peak they set in late 2021. That year, the company's COVID-19 vaccine, Comirna ...