In this article, we will be taking a look at the 10 Best Pharma Stocks to Buy According to Billionaires. Pfizer Inc. is one of them. Pfizer Inc. (NYSE:PFE), a global biopharmaceutical leader, continues to make strides in vaccines and oncology, reinforcing its position in the pharma sector. In September 2025, PFE and BioNTech reported positive Phase 3 data for the LP.8.1-adapted COMIRNATY 2025-2026 COVID-19 vaccine. The updated formulation produced at least a four-fold increase in neutralizing antibodies ...