Jane Street
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Jane Street’s Zai Lab ZLAB Stock Holding History

Jane Street’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
Q2 		$9.05M Buy
476,541
+208,615
+78% +$4.12M ﹤0.01% 2950
2026
Q1 		$5.04M Sell
267,926
-114,136
-30% -$2.12M ﹤0.01% 3509
2025
Q4 		$6.74M Buy
+382,062
New +$8.94M ﹤0.01% 2811
2025
Q1 		– Sell
-10,881
Closed -$335K – 10819
2024
Q4 		$285K Sell
10,881
-25,594
-70% -$710K ﹤0.01% 7817
2024
Q3 		$881K Sell
36,475
-137,564
-79% -$2.6M ﹤0.01% 6136
2024
Q2 		$3.02M Buy
174,039
+43,620
+33% +$767K ﹤0.01% 3802
2024
Q1 		$2.09M Sell
130,419
-23,425
-15% -$493K ﹤0.01% 4050
2023
Q4 		$4.2M Buy
153,844
+124,462
+424% +$3.29M ﹤0.01% 3106
2023
Q3 		$714K Sell
29,382
-1,657
-5% -$44.1K ﹤0.01% 5692
2023
Q2 		$861K Buy
+31,039
New +$1.02M ﹤0.01% 5464
2023
Q1 		– Sell
-24,306
Closed -$933K – 10079
2022
Q4 		$746K Buy
24,306
+9,443
+64% +$298K ﹤0.01% 5474
2022
Q3 		$508K Buy
+14,863
New +$636K ﹤0.01% 6670
2022
Q2 		– Sell
-38,108
Closed -$1.34M – 11110
2022
Q1 		$1.68M Buy
38,108
+20,518
+117% +$992K ﹤0.01% 5087
2021
Q4 		$1.11M Sell
17,590
-28,065
-61% -$2.38M ﹤0.01% 5686
2021
Q3 		$4.81M Buy
45,655
+39,104
+597% +$5.61M ﹤0.01% 2801
2021
Q2 		$1.16M Sell
6,551
-4,222
-39% -$679K ﹤0.01% 5514
2021
Q1 		$1.44M Buy
10,773
+5,627
+109% +$871K ﹤0.01% 4702
2020
Q4 		$696K Sell
5,146
-107
-2% -$10.9K ﹤0.01% 5232
2020
Q3 		$437K Sell
5,253
-1,747
-25% -$140K ﹤0.01% 5353
2020
Q2 		$575K Buy
7,000
+1,304
+23% +$88.2K ﹤0.01% 4864
2020
Q1 		$293K Buy
+5,696
New +$297K ﹤0.01% 4231
2018
Q4 		– Sell
-36,282
Closed -$707K – 5850
2018
Q3 		$707K Buy
+36,282
New +$787K ﹤0.01% 3197

Other funds holding ZLAB

RI
RTW Investments New York $11.7B AUM 174.13% 1-Year Est. Return
TCM
TCG Crossover Management Palo Alto, California $4.16B AUM 983.43% 1-Year Est. Return
RCM
RA Capital Management Boston, Massachusetts $11.5B AUM 168.77% 1-Year Est. Return
ACM
ADAR1 Capital Management Austin, Texas $2.19B AUM 374.99% 1-Year Est. Return
Fidelity Investments
Fidelity Investments Boston, Massachusetts $2.3T AUM 54.33% 1-Year Est. Return
Goldman Sachs
Goldman Sachs New York $1.15T AUM 47.82% 1-Year Est. Return
WP
Woodline Partners San Francisco, California $32.4B AUM 58.5% 1-Year Est. Return
FLSM
Frazier Life Sciences Management Palo Alto, California $4.59B AUM 237.58% 1-Year Est. Return
BAMCO Inc
BAMCO Inc New York $66.6B AUM 7.35% 1-Year Est. Return
Two Sigma Investments
Two Sigma Investments New York $138B AUM 41.87% 1-Year Est. Return

Jane Street's ZLAB Position: Q2 2026 in Review

Jane Street increased its Zai Lab (ZLAB) stake by 78% in Q2 2026, buying an estimated $4.12M and bringing the position to 476,541 shares worth $9.05M. The position accounts for ﹤0.01% of the portfolio, ranked #2950.

Jane Street first reported a position in ZLAB in Q3 2018 and has held it in 22 quarters since. 93 funds tracked by Wall St. Rank hold ZLAB as of Q2 2026.

  • Jane Street held 476,541 shares of Zai Lab worth $9.05M as of Q2 2026.
  • Jane Street bought 208,615 Zai Lab shares in Q2 2026, an estimated $4.12M.
  • Zai Lab made up ﹤0.01% of Jane Street's portfolio in Q2 2026, its #2950 holding.
  • Jane Street first reported a position in Zai Lab in Q3 2018 and has held it in 22 quarters since.
  • 93 funds tracked by Wall St. Rank held Zai Lab as of Q2 2026.

Based on Jane Street's 13F filing for Q2 2026, filed 14 Aug 2026.