Nine Masts Capital’s Zai Lab ZLAB Stock Holding History

Nine Masts Capital’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
2025 Q2	–	Sell	-50,500	Closed	-$1.85M	–	128
2025 Q1	$1.85M	Buy	+50,500	New	+$1.55M	1.23%	12
2024 Q2	–	Sell	-14,000	Closed	-$231K	–	158
2024 Q1	$231K	Buy	+14,000	New	+$295K	0.06%	67
2020 Q1	–	Sell	-7,200	Closed	-$299K	–	138
2019 Q4	$299K	Buy	+7,200	New	+$266K	0.09%	53
2018 Q3	–	Sell	-44,000	Closed	-$1.02M	–	386
2018 Q2	$1.02M	Sell	44,000 -20,000	-31%	-$431K	0.2%	72
2018 Q1	$1.37M	Hold	64,000	–	–	0.21%	55
2017 Q4	$1.36M	Buy	64,000 +14,000	+28%	+$372K	0.18%	56
2017 Q3	$1.35M	Buy	+50,000	New	+$1.39M	0.2%	36

Other funds holding ZLAB

Fidelity Investments Boston, Massachusetts $2.3T AUM 54.33% 1-Year Est. Return

Capital World Investors Los Angeles, California $846B AUM 46.74% 1-Year Est. Return

RTW Investments New York $11.7B AUM 174.13% 1-Year Est. Return

ClearBridge Investments New York $121B AUM 27.52% 1-Year Est. Return

Janus Henderson Group London $209B AUM 37.72% 1-Year Est. Return

BAMCO Inc New York $66.6B AUM 7.35% 1-Year Est. Return

Wellington Management Group Boston, Massachusetts $580B AUM 38.23% 1-Year Est. Return

FLSM

Frazier Life Sciences Management Palo Alto, California $4.59B AUM 237.58% 1-Year Est. Return

Woodline Partners San Francisco, California $32.4B AUM 58.5% 1-Year Est. Return

Allianz Asset Management Munich, Germany $123B AUM 45.23% 1-Year Est. Return

Nine Masts Capital's ZLAB Position: Q2 2025 in Review

Nine Masts Capital sold out of Zai Lab (ZLAB) in Q2 2025, closing a stake of 50,500 shares — an estimated $1.85M sold.

Nine Masts Capital first reported a position in ZLAB in Q3 2017 and held it in 7 quarters. The position peaked at $1.85M in Q1 2025. 156 funds tracked by Wall St. Rank hold ZLAB as of Q2 2025.

Nine Masts Capital reported no remaining Zai Lab position as of Q2 2025 after selling out during the quarter.
Nine Masts Capital sold 50,500 Zai Lab shares in Q2 2025, an estimated $1.85M.
Nine Masts Capital first reported a position in Zai Lab in Q3 2017 and held it in 7 quarters.
Nine Masts Capital's Zai Lab position peaked at $1.85M in Q1 2025.
156 funds tracked by Wall St. Rank held Zai Lab as of Q2 2025.

Based on Nine Masts Capital's 13F filing for Q2 2025, filed 13 Aug 2025.