Alphamab Oncology files HKEX next-day disclosure return on share repurchase at HKD 8.79 each

• Alphamab Oncology repurchased 56,000 ordinary shares on Sept. 4 for treasury, per HKEX next-day disclosure return.
• Buyback price ranged from HKD 8.75 to HKD 8.8 per share; aggregate consideration was HKD 492,430.
• Issued shares excluding treasury fell to 968,000,697; treasury shares rose to 6,381,000.

Disclaimer: This news brief was created by Public Technologies (PUBT) using generative artificial intelligence. While PUBT strives to provide accurate and timely information, this AI-generated content is for informational purposes only and should not be interpreted as financial, investment, or legal advice. Alphamab Oncology published the original content used to generate this news brief via IIS, the regulatory disclosure system operated by the Hong Kong Stock Exchange (HKex) (Ref. ID: HKEX-EPS-20260904-12321874), on September 04, 2026, and is solely responsible for the information contained therein.