Antengene Corporation Limited (Antengene-B) disclosed a HKEX Next Day Return detailing the on-market buy-back of 147,000 ordinary shares on 25 September 2026. The purchase was executed entirely on the Hong Kong Stock Exchange at prices between HKD 3.38 and HKD 3.46, with a volume-weighted average cost of HKD 3.4347 per share. The total consideration amounted to approximately HKD 0.50 million.

Post-transaction, Antengene’s issued share capital (excluding treasury shares) decreased to 687.21 million, down 0.0214% from 687.36 million on 24 September 2026. Treasury shares rose to 2.33 million, keeping the total share count unchanged at 689.54 million.

The repurchase utilised part of the mandate granted on 10 June 2026, which authorises the company to buy back up to 67.92 million shares. Cumulative repurchases under this mandate now total 2.12 million shares, representing 0.31% of the issued share base at the mandate date, leaving authority for a further 65.80 million shares.

In accordance with Hong Kong listing rules, Antengene-B is subject to a 30-day moratorium—running through 25 October 2026—during which it may not issue new shares or dispose of treasury shares without prior Exchange approval.