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RTW Investments’s Zai Lab ZLAB Stock Holding History

RTW Investments’s Portfolio ZLAB Stock Details ZLAB Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2026
Q1 		$124M Sell
6,574,032
-385,000
-6% -$7.14M 1.23% 27
2025
Q4 		$123M Buy
6,959,032
+4,667,660
+204% +$109M 1.23% 24
2025
Q3 		$77.7M Sell
2,291,372
-3,245,504
-59% -$112M 0.96% 30
2025
Q2 		$194M Buy
5,536,876
+2,400,196
+77% +$78.9M 2.76% 14
2025
Q1 		$113M Buy
3,136,680
+627,561
+25% +$19.3M 1.73% 21
2024
Q4 		$65.7M Buy
+2,509,119
New +$69.6M 0.99% 29

Other funds holding ZLAB

RCM
RA Capital Management Boston, Massachusetts $9.44B AUM 157.3% 1-Year Est. Return
FLSM
Frazier Life Sciences Management Palo Alto, California $3.89B AUM 201.1% 1-Year Est. Return
Citadel Advisors
Citadel Advisors Miami, Florida $141B AUM 30.34% 1-Year Est. Return
BAMCO Inc
BAMCO Inc New York $33.1B AUM 11.16% 1-Year Est. Return
ACM
ADAR1 Capital Management Austin, Texas $1.66B AUM 340.85% 1-Year Est. Return
Fidelity Investments
Fidelity Investments Boston, Massachusetts $1.9T AUM 41.92% 1-Year Est. Return
BlackRock
BlackRock New York $5.7T AUM 30.48% 1-Year Est. Return
RSCM
Rock Springs Capital Management Baltimore, Maryland $1.7B AUM 93.03% 1-Year Est. Return
CWG
C WorldWide Group Copenhagen, Denmark $4.66B AUM 11.67% 1-Year Est. Return
UBS Group
UBS Group Zurich, Switzerland $564B AUM 30.12% 1-Year Est. Return