Royalty Pharma plc (RPRX)

How it makes money

Revenue, which the company calls royalty receipts, is simply the royalty percentage applied to each partner drug's sales, so it rises and falls with how well the underlying medicines sell and how many years of patent protection remain before generic competition erodes them. Royalty Pharma has no salespeople or marketing spend tied to the drugs themselves; its own costs are mainly interest on debt used to fund royalty purchases and the team that sources and prices new deals, so profitability depends heavily on paying the right price for each royalty stream upfront.

Royalty Pharma is the largest dedicated buyer of drug royalties, which gives it access to the biggest and most attractive deals, a lower cost of capital than smaller rivals, and decades of underwriting data on how drug sales evolve after launch. That scale is a real edge in winning deals, but it does not protect any single royalty stream from patent expiry or from a drug simply underperforming.

Royalty receipts depend on prescription drug sales, which are largely insulated from the broader economic cycle since patients keep taking medicines they need regardless of the economy. The bigger driver of any single year's results is the product mix in the portfolio — how a handful of large royalties like the cystic fibrosis franchise or Trelegy are performing — rather than macroeconomic conditions.

Key risks

• Patent expiry and generic competition — Every royalty stream has a finite life tied to the underlying drug's patent protection; once patents expire and generics enter, royalty receipts from that product can fall sharply within a year or two.
• Clinical, regulatory and commercial risk of underlying drugs — Royalty Pharma has no control over how the drugmakers it partners with run clinical trials, market their products or compete for prescriptions, so a disappointing launch or a safety issue with a partner drug directly cuts its receipts.
• Deal-sourcing and capital-allocation risk — Future growth depends on continuing to find and win new royalty deals at attractive prices; if competition for these deals increases or the pipeline of available royalties dries up, growth slows even if the existing portfolio performs well.
• Reliance on debt to fund royalty purchases — Royalty Pharma finances part of its portfolio with borrowed money, and higher interest rates or reduced access to credit markets raise the cost of funding new deals and can compress returns.

Royalty Pharma does not disclose revenue by paying company, but states that no single product accounted for more than 26% of 2025 Portfolio Receipts, spreading the risk across dozens of royalty streams.