Sihuan Pharmaceutical's (HKG:0460) trustee bought back 8 million shares of the firm from the market for around HK$1.0052 apiece under a 2022 share award scheme, according to a Wednesday filing with the Hong Kong bourse.
The company's shares fell nearly 4% in late morning trade Thursday.
The shares represent 0.0877% of the pharma firm's issued share capital.