Superstring Capital Management’s Zai Lab ZLAB Stock Holding History

Superstring Capital Management’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	$5.19M	Buy	275,818 +78,965	+40%	+$1.46M	3.71%	12
2025 Q4	$3.47M	Sell	196,853 -3,775	-2%	-$88.4K	1.86%	19
2025 Q3	$6.8M	Buy	200,628 +65,733	+49%	+$2.26M	6.7%	1
2025 Q2	$4.72M	Sell	134,895 -160,052	-54%	-$5.26M	5.59%	6
2025 Q1	$10.7M	Sell	294,947 -108,683	-27%	-$3.34M	12.68%	1
2024 Q4	$10.6M	Sell	403,630 -223,302	-36%	-$6.2M	9.15%	3
2024 Q3	$15.1M	Buy	626,932 +411,754	+191%	+$7.78M	13.25%	1
2024 Q2	$3.73M	Buy	+215,178	New	+$3.78M	4.7%	7

Other funds holding ZLAB

RTW Investments New York $10B AUM 135.35% 1-Year Est. Return

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 Miami, Florida $618B AUM 30.34% 1-Year Est. Return

BAMCO Inc New York $33.1B AUM 11.16% 1-Year Est. Return

ACM

ADAR1 Capital Management Austin, Texas $1.7B AUM 340.85% 1-Year Est. Return

Fidelity Investments Boston, Massachusetts $1.9T AUM 41.92% 1-Year Est. Return

BlackRock New York $5.72T 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

Superstring Capital Management's ZLAB Position: Q1 2026 in Review

Superstring Capital Management increased its Zai Lab (ZLAB) stake by 40% in Q1 2026, buying an estimated $1.46M and bringing the position to 275,818 shares worth $5.19M. The position accounts for 3.71% of the portfolio, ranked #12.

Superstring Capital Management first reported a position in ZLAB in Q2 2024 and has held it in 8 quarters since. The position peaked at $15.1M in Q3 2024. 99 funds tracked by Wall St. Rank hold ZLAB as of Q1 2026.

Superstring Capital Management held 275,818 shares of Zai Lab worth $5.19M as of Q1 2026.
Superstring Capital Management bought 78,965 Zai Lab shares in Q1 2026, an estimated $1.46M.
Zai Lab made up 3.71% of Superstring Capital Management's portfolio in Q1 2026, its #12 holding.
Superstring Capital Management first reported a position in Zai Lab in Q2 2024 and has held it in 8 quarters since.
Superstring Capital Management's Zai Lab position peaked at $15.1M in Q3 2024.
99 funds tracked by Wall St. Rank held Zai Lab as of Q1 2026.

Based on Superstring Capital Management's 13F filing for Q1 2026, filed 14 May 2026.