Abbisko Cayman (HKG:2256) Founder Xu Yao-Chang purchased 40,000 shares at HK$7.57 apiece, according to a Thursday filing with the Hong Kong bourse.
The purchased shares represent 0.01% of the total shareholding of the drug company.
Following the purchase, Xu, who is also the chairman and CEO, has an aggregate of 79,987,980 shares, equivalent to 11.77% of the total issued shares.