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MERCK & CO., INC., Rahway, NJ, USA

(known as MSD outside the United States and Canada)

Effective October 7th, 2025, Verona Pharma Plc and it subsidiaries1 are subsidiaries of Merck & Co., Inc. (Rahway, New Jersey USA)

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1 Subsidiaries include Verona Pharma, Inc. (US) and Verona Pharma Ireland Limited (Ireland).

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