Janus Henderson Group
ZLAB icon

Janus Henderson Group’s Zai Lab ZLAB Stock Holding History

Janus Henderson Group’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
Q4 		– Sell
-2,049,537
Closed -$69.5M – 2484
2025
Q3 		$69.5M Sell
2,049,537
-148,323
-7% -$5.11M 0.03% 347
2025
Q2 		$76.8M Sell
2,197,860
-1,615,573
-42% -$53.1M 0.04% 310
2025
Q1 		$142M Sell
3,813,433
-2,754,459
-42% -$84.7M 0.08% 217
2024
Q4 		$172M Sell
6,567,892
-2,192,182
-25% -$60.8M 0.09% 208
2024
Q3 		$211M Buy
8,760,074
+2,232,507
+34% +$42.2M 0.11% 183
2024
Q2 		$113M Buy
6,527,567
+2,099,556
+47% +$36.9M 0.06% 248
2024
Q1 		$70.9M Buy
4,428,011
+387,729
+10% +$8.17M 0.04% 320
2023
Q4 		$110M Sell
4,040,282
-202,944
-5% -$5.36M 0.07% 241
2023
Q3 		$103M Buy
4,243,226
+556,472
+15% +$14.8M 0.07% 240
2023
Q2 		$102M Buy
3,686,754
+1,815,712
+97% +$59.4M 0.06% 253
2023
Q1 		$62.2M Buy
1,871,042
+276,417
+17% +$10.6M 0.04% 333
2022
Q4 		$49M Sell
1,594,625
-2,114,301
-57% -$66.7M 0.04% 377
2022
Q3 		$127M Buy
3,708,926
+1,795,782
+94% +$76.8M 0.05% 312
2022
Q2 		$66.4M Buy
+1,913,144
New +$67.5M 0.05% 318
2021
Q4 		– Sell
-15,783
Closed -$1.66M – 2593
2021
Q3 		$1.66M Sell
15,783
-11,353
-42% -$1.63M ﹤0.01% 1288
2021
Q2 		$4.8M Sell
27,136
-6,512
-19% -$1.05M ﹤0.01% 1066
2021
Q1 		$4.49M Sell
33,648
-980
-3% -$152K ﹤0.01% 1026
2020
Q4 		$4.69M Buy
34,628
+8,084
+30% +$823K ﹤0.01% 972
2020
Q3 		$2.21M Buy
26,544
+9,877
+59% +$793K ﹤0.01% 1040
2020
Q2 		$1.37M Buy
+16,667
New +$1.13M ﹤0.01% 1083
2017
Q4 		– Sell
-278,345
Closed -$7.51M – 1345
2017
Q3 		$7.51M Buy
+278,345
New +$7.76M ﹤0.01% 912

Other funds holding ZLAB

RI
RTW Investments New York $10B AUM 135.35% 1-Year Est. Return
FLSM
Frazier Life Sciences Management Palo Alto, California $3.89B AUM 201.1% 1-Year Est. Return
ClearBridge Investments
ClearBridge Investments New York $115B AUM 24.78% 1-Year Est. Return
UBS Group
UBS Group Zurich, Switzerland $666B AUM 30.12% 1-Year Est. Return
Citadel Advisors
Citadel Advisors Miami, Florida $618B AUM 30.34% 1-Year Est. Return
Fidelity Investments
Fidelity Investments Boston, Massachusetts $1.9T AUM 41.92% 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
RSCM
Rock Springs Capital Management Baltimore, Maryland $1.7B AUM 93.03% 1-Year Est. Return
Wellington Management Group
Wellington Management Group Boston, Massachusetts $535B AUM 26.23% 1-Year Est. Return

Janus Henderson Group's ZLAB Position: Q4 2025 in Review

Janus Henderson Group sold out of Zai Lab (ZLAB) in Q4 2025, closing a stake of 2,049,537 shares — an estimated $69.5M sold.

Janus Henderson Group first reported a position in ZLAB in Q3 2017 and held it in 21 quarters. The position peaked at $211M in Q3 2024. 126 funds tracked by Wall St. Rank hold ZLAB as of Q4 2025.

  • Janus Henderson Group reported no remaining Zai Lab position as of Q4 2025 after selling out during the quarter.
  • Janus Henderson Group sold 2,049,537 Zai Lab shares in Q4 2025, an estimated $69.5M.
  • Janus Henderson Group first reported a position in Zai Lab in Q3 2017 and held it in 21 quarters.
  • Janus Henderson Group's Zai Lab position peaked at $211M in Q3 2024.
  • 126 funds tracked by Wall St. Rank held Zai Lab as of Q4 2025.

Based on Janus Henderson Group's 13F filing for Q4 2025, filed 17 Feb 2026.