ZLAB — Zai Lab Ltd

Ownership history in MPM BioImpact LLC  ·  4 quarters on record

This page tracks every 13F SEC filing in which MPM BioImpact LLC reported a position in Zai Lab Ltd (ZLAB). Data includes quarterly share count, position size as % of portfolio, estimated market value, and end-of-quarter stock price — sourced directly from SEC EDGAR 13F filings.

Peak position
5.18% (2025 Q1)
Avg. % of fund
4.2%
First filed
2024 Q4
Last filed
2025 Q3
Quarters held
4
Quarter Action Shares Change Chg % % of Fund Mkt Value Price (EOQ)
2025 Q3 UNCHANGED 745,060 — 0% 4.13% $25.3M $33.89
2025 Q2 REDUCED 745,060 -88,599 -10.6% 4.51% $26.1M $34.97
2025 Q1 ADDED 833,659 +33,659 +4.2% 5.18% $30.1M $36.14
2024 Q4 INITIATED 800,000 — — 2.97% $21.0M $26.19
% of Fund (quarterly)    ZLAB price (monthly, adj. close)

Other funds also holding ZLAB

As of 2025 Q4 — sorted by position size

B Group, Inc. 5.21% XY Capital Ltd 3Y 2.25% SUPERSTRING CAPITAL MANAGEMENT LP 1.86% ADAR1 Capital Management, LLC 1.59% RTW INVESTMENTS, LP 3Y 7Y 1.23% Frazier Life Sciences Management, L.P. 3Y 0.9% Rock Springs Capital Management LP 3Y 7Y 0.73% DCF Advisers, LLC 3Y 0.46% Privium Fund Management B.V. 3Y 0.43% NAN FUNG TRINITY (HK) Ltd 3Y 0.38%
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