GlaxoSmithKline LLC, operating as GSK, is a biopharmaceutical company headquartered in London, United Kingdom. It discovers, develops, manufactures, and commercializes medicines and vaccines with a focus on respiratory diseases, immunology and inflammation, oncology, HIV, and infectious diseases.
As of June 2026, GSK is in the process of acquiring Nuvalent for $10.6 billion to expand its oncology portfolio, including lung cancer drug candidates with FDA designations.
Official website: us.gsk.com
