RTW Investments, LP bought 9.47 million ADS shares of Zai Lab Limited (09688) at an average of USD 26.05 per share on August 11, 2026, involving about USD 246.81 million.
Prior to the acquisition, RTW Investments, LP's long position in Zai Lab was 67.34 million shares, representing 5.97%; following the acquisition, the holding changed to 76.81 million shares, with the long position ratio rising to 6.75%.