Pfizer is a research-based biopharmaceutical company engaged in the discovery, development, manufacture, and distribution of healthcare products. It operates through two business segments: Biopharma and PC1. The Biopharma segment offers medicines, vaccines, and biosimilars for the treatment of cardiovascular and metabolic diseases, oncology diseases, pneumococcal disease, meningococcal disease and tick-borne encephalitis, chronic immune and inflammatory diseases, as well as rare diseases, including amyloidosis, hemophilia, and endocrine diseases. The PC1 segment is a contract development and manufacturing organization and a supplier of specialty active pharmaceutical ingredients.