Hutchmed strikes licensing agreement with GSK

3 September 2026

Shares of Chinese biopharma Hutchmed (HKEX: 13; AIM: HCM) leapt 15.3% to HK$22.06 after it announced an exclusive development and license agreement with a subsidiary of GSK (LSE: GSK), granting worldwide rights excluding Mainland China, Hong Kong, Macau and Taiwan to develop and commercialize HMPL-A830.

This first-in-class drug candidate, an antibody-targeted therapy conjugate (ATTC), comprises a highly selective and potent Kirsten rat sarcoma (KRAS) small molecule inhibitor payload conjugated to an anti-epidermal growth factor receptor (EGFR” antibody. An ATTC enables tumor-selective activity of potent, cell-killing payloads by leveraging antibody-guided therapy.

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