TCG Crossover Entities and Chen Yu Acquire 5.3% Stake in Zai Lab Limited

On June 11, 2026, TCG Crossover GP II, LLC and associated entities, including Chen Yu, filed a Schedule 13G regarding their holdings in Zai Lab Limited (ZLAB). The filing reveals that the reporting persons collectively hold 59,130,750 Ordinary Shares, representing a 5.3% ownership stake in the company. Specifically, TCG Crossover Fund II, L.P. holds 29,565,330 shares, while TCG Crossover Fund III, L.P. holds 29,565,420 shares. Chen Yu, as the sole managing member of the general partners for both funds (TCG Crossover GP II and TCG Crossover GP III), may be deemed to share voting and dispositive power over the combined total of 59,130,750 shares. The shares are held in the form of American Depositary Shares (ADSs), with each ADS representing ten Ordinary Shares. This filing marks an increase from a previously reported 0% position, establishing a significant new passive stake in the issuer based on 1,123,548,580 shares outstanding as of April 30, 2026.