Royalty Pharma PLC is the largest buyer of biopharmaceutical royalties. The firm has a portfolio of royalties that entitles it to payments based on the sales of biopharma products. Royalty Pharma receives royalties on more than 35 commercial products, including AbbVie and Johnson & Johnson's Imbruvica (for chronic lymphocytic leukemia and other blood cancers), Biogen's Tysabri (for relapsing forms of multiple sclerosis), Vertex's cystic fibrosis franchise, and 10 development-stage product candidates.