Ken Griffin
ZLAB icon

Ken Griffin’s Zai Lab ZLAB Stock Holding History

Ken Griffin’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 		$31.8M Buy
1,688,632
+786
+0% +$14.6K 0.01% 1801
2025
Q4 		$29.8M Buy
1,687,846
+700,803
+71% +$16.4M ﹤0.01% 1917
2025
Q3 		$33.5M Buy
987,043
+620,830
+170% +$21.4M 0.01% 1758
2025
Q2 		$12.8M Sell
366,213
-16,256
-4% -$534K ﹤0.01% 2702
2025
Q1 		$13.8M Buy
382,469
+202,417
+112% +$6.23M ﹤0.01% 2462
2024
Q4 		$4.72M Sell
180,052
-1,156,320
-87% -$32.1M ﹤0.01% 4058
2024
Q3 		$32.3M Buy
1,336,372
+436,706
+49% +$8.25M 0.01% 1608
2024
Q2 		$15.6M Buy
899,666
+239,092
+36% +$4.2M ﹤0.01% 2264
2024
Q1 		$10.6M Buy
660,574
+629,984
+2,059% +$13.3M ﹤0.01% 2882
2023
Q4 		$836K Sell
30,590
-109,615
-78% -$2.89M ﹤0.01% 7032
2023
Q3 		$3.41M Sell
140,205
-63,126
-31% -$1.68M ﹤0.01% 4269
2023
Q2 		$5.64M Buy
203,331
+155,313
+323% +$5.08M ﹤0.01% 3463
2023
Q1 		$1.6M Buy
48,018
+27,634
+136% +$1.06M ﹤0.01% 5794
2022
Q4 		$626K Buy
+20,384
New +$643K ﹤0.01% 7782
2022
Q3 		– Sell
-79,043
Closed -$3.38M – 13752
2022
Q2 		$2.74M Buy
+79,043
New +$2.79M ﹤0.01% 4928
2022
Q1 		– Sell
-49,479
Closed -$2.39M – 14738
2021
Q4 		$3.11M Sell
49,479
-91,853
-65% -$7.79M ﹤0.01% 5266
2021
Q3 		$14.9M Buy
141,332
+117,099
+483% +$16.8M ﹤0.01% 2435
2021
Q2 		$4.29M Sell
24,233
-10,198
-30% -$1.64M ﹤0.01% 4771
2021
Q1 		$4.59M Buy
34,431
+32,366
+1,567% +$5.01M ﹤0.01% 4435
2020
Q4 		$279K Sell
2,065
-1,731
-46% -$176K ﹤0.01% 9198
2020
Q3 		$316K Sell
3,796
-11,901
-76% -$955K ﹤0.01% 8047
2020
Q2 		$1.29M Buy
+15,697
New +$1.06M ﹤0.01% 5361
2020
Q1 		– Sell
-64,168
Closed -$3.34M – 10294
2019
Q4 		$2.67M Sell
64,168
-5,881
-8% -$217K ﹤0.01% 3966
2019
Q3 		$2.27M Buy
70,049
+34,572
+97% +$1.19M ﹤0.01% 4280
2019
Q2 		$1.24M Buy
35,477
+15,038
+74% +$443K ﹤0.01% 5350
2019
Q1 		$603K Buy
+20,439
New +$559K ﹤0.01% 6470
2018
Q4 		– Sell
-17,074
Closed -$333K – 9859
2018
Q3 		$333K Buy
+17,074
New +$370K ﹤0.01% 7399

Other funds holding ZLAB

RI
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
BAMCO Inc
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
Fidelity Investments Boston, Massachusetts $1.9T AUM 41.92% 1-Year Est. Return
BlackRock
BlackRock New York $6.73T AUM 46.02% 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 $4.15B AUM 13.14% 1-Year Est. Return
UBS Group
UBS Group Zurich, Switzerland $666B AUM 30.12% 1-Year Est. Return

Ken Griffin's ZLAB Position: Q1 2026 in Review

Ken Griffin increased its Zai Lab (ZLAB) stake by 0.05% in Q1 2026, buying an estimated $14.6K and bringing the position to 1,688,632 shares worth $31.8M. The position accounts for 0.01% of the portfolio, ranked #1801.

Ken Griffin first reported a position in ZLAB in Q3 2018 and has held it in 27 quarters since. The position peaked at $33.5M in Q3 2025. 99 funds tracked by Wall St. Rank hold ZLAB as of Q1 2026.

  • Ken Griffin held 1,688,632 shares of Zai Lab worth $31.8M as of Q1 2026.
  • Ken Griffin bought 786 Zai Lab shares in Q1 2026, an estimated $14.6K.
  • Zai Lab made up 0.01% of Ken Griffin's portfolio in Q1 2026, its #1801 holding.
  • Ken Griffin first reported a position in Zai Lab in Q3 2018 and has held it in 27 quarters since.
  • Ken Griffin's Zai Lab position peaked at $33.5M in Q3 2025.
  • 99 funds tracked by Wall St. Rank held Zai Lab as of Q1 2026.

Based on Citadel Advisors's 13F filing for Q1 2026, filed 15 May 2026.