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 		– Sell
-15,300
Closed -$270K – 14426
2025
Q4 		$270K Sell
15,300
-8,600
-36% -$201K ﹤0.01% 10384
2025
Q3 		$810K Sell
23,900
-3,700
-13% -$127K ﹤0.01% 8003
2025
Q2 		$965K Buy
27,600
+7,400
+37% +$243K ﹤0.01% 7183
2025
Q1 		$730K Buy
20,200
+6,900
+52% +$212K ﹤0.01% 7654
2024
Q4 		$348K Sell
13,300
-4,000
-23% -$111K ﹤0.01% 9349
2024
Q3 		$418K Buy
17,300
+9,300
+116% +$176K ﹤0.01% 8647
2024
Q2 		$139K Sell
8,000
-10,200
-56% -$179K ﹤0.01% 10462
2024
Q1 		$292K Buy
18,200
+7,400
+69% +$156K ﹤0.01% 9500
2023
Q4 		$295K Buy
10,800
+1,200
+13% +$31.7K ﹤0.01% 9191
2023
Q3 		$233K Buy
9,600
+1,700
+22% +$45.3K ﹤0.01% 9628
2023
Q2 		$219K Sell
7,900
-11,800
-60% -$386K ﹤0.01% 9690
2023
Q1 		$655K Sell
19,700
-113,900
-85% -$4.37M ﹤0.01% 7735
2022
Q4 		$4.1M Buy
133,600
+30,200
+29% +$953K ﹤0.01% 4201
2022
Q3 		$3.54M Buy
103,400
+78,400
+314% +$3.35M ﹤0.01% 4484
2022
Q2 		$867K Buy
25,000
+3,500
+16% +$123K ﹤0.01% 7354
2022
Q1 		$946K Sell
21,500
-4,200
-16% -$203K ﹤0.01% 7833
2021
Q4 		$1.61M Buy
25,700
+13,200
+106% +$1.12M ﹤0.01% 6720
2021
Q3 		$1.32M Buy
12,500
+4,400
+54% +$632K ﹤0.01% 7425
2021
Q2 		$1.43M Sell
8,100
-600
-7% -$96.5K ﹤0.01% 7422
2021
Q1 		$1.16M Buy
8,700
+1,200
+16% +$186K ﹤0.01% 7736
2020
Q4 		$1.01M Buy
7,500
+1,200
+19% +$122K ﹤0.01% 6767
2020
Q3 		$524K Sell
6,300
-4,200
-40% -$337K ﹤0.01% 7217
2020
Q2 		$862K Buy
10,500
+700
+7% +$47.4K ﹤0.01% 6098
2020
Q1 		$505K Buy
+9,800
New +$511K ﹤0.01% 6454

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.