How Gilead Is Building Durable Oncology and Immunology Franchises

Gilead today stands at an inflection point. Its HIV and broader virology business still account for roughly two-thirds of total revenue, even as oncology has grown into a mid–single-digit billion-dollar franchise and inflammation and immunology remain earlier-stage bets. The company is tackling the strategic challenge of diversifying beyond HIV while preserving its leadership in virology. Chief Medical Officer Dietmar Berger discusses how the company is raising the bar for mechanistic understanding before making major investments, using targeted acquisitions to build platform-based franchises, and bringing in differentiated therapies and platforms that can be applied across solid tumors, autoimmune diseases, and even future viral threats.