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GSK to buy RAPT Therapeutics for $2.2 billion

By Thomson Reuters Jan 20, 2026 | 1:19 AM

Jan 20 (Reuters) – GSK will buy RAPT Therapeutics for $2.2 billion, ‍the British drugmaker said on Tuesday, expanding its respiratory, immunology & inflammation offerings, led by the ‌U.S. firm’s experimental ‌drug for food allergies, ozureprubart.

The London-listed company will pay $58.00 per RAPT share, with an ​upfront investment of $1.9 billion, and the ‍deal will ​give GSK global ​rights to the ozureprubart ‍programme, excluding mainland China, Macau, Taiwan and Hong Kong.

The acquisition came as GSK said ‍on Tuesday Japan’s Shionogi & Co would boost its stake ‍in ‍their ViiV Healthcare ​venture for HIV ​therapies ⁠after Pfizer’s exit. ‌GSK retains its 78.3% majority stake in ViiV.

(Reporting by Pushkala Aripaka in Bengaluru; Editing by Subhranshu ⁠Sahu)