Antengene Corporation Limited (ANTENGENE-B) filed a Next Day Disclosure Return on 16 July 2026, reporting an on-market buy-back of 225,500 ordinary shares executed the same day.

The shares were repurchased on the Hong Kong Stock Exchange at prices between HKD 4.37 and HKD 4.54, with a volume-weighted average cost of HKD 4.45 per share. Total consideration amounted to HKD 1.00 million.

Following the transaction, issued shares excluding treasury stock fell from 678.63 million to 678.40 million, while treasury shares increased from 0.82 million to 1.04 million. The buy-back represents 0.0332% of the company’s outstanding shares (excluding treasury shares) prior to the repurchase. Total issued share capital remains unchanged at 679.45 million shares.

The repurchase forms part of a mandate approved on 10 June 2026 authorising the company to buy back up to 67.92 million shares. Cumulative purchases under this mandate now stand at 840,000 shares, equal to 0.1237% of the share count on the mandate date.

Under Main Board Rule 10.06, ANTENGENE-B is restricted from issuing new shares or disposing of treasury shares until 15 August 2026.