ZAI LAB LTDZLAB— Latest position per institution from SEC 13F filings
15
Institutional holders
52.24M
Total shares held
1.14B
Estimated value
2.61M
Avg. position size
RTW INVESTMENTS, LP
CIK 1493215
Shares
6.57M
Value
124.91M
Filed
Jun 30, 2026
TCG CROSSOVER MANAGEMENT, LLC
CIK 1839948
Shares
6.14M
Value
116.61M
Filed
Jun 30, 2026
CAPITAL WORLD INVESTORS
CIK 1422849
Shares
6.08M
Value
205.97M
Filed
Sep 30, 2025
RA CAPITAL MANAGEMENT, L.P.
CIK 1346824
Shares
5.74M
Value
109.13M
Filed
Jun 30, 2026
ADAR1 CAPITAL MANAGEMENT, LLC
CIK 1940272
Shares
3.37M
Value
64.01M
Filed
Jun 30, 2026
FMR LLC
CIK 315066
Shares
2.82M
Value
53.49M
Filed
Jun 30, 2026
GOLDMAN SACHS GROUP INC
CIK 886982
Shares
2.32M
Value
43.99M
Filed
Jun 30, 2026
WOODLINE PARTNERS LP
CIK 1784547
Shares
2.21M
Value
41.94M
Filed
Jun 30, 2026
JANUS HENDERSON GROUP LTD.
CIK 1274173
Shares
2.05M
Value
69.49M
Filed
Sep 30, 2025
VIKING GLOBAL INVESTORS LP
CIK 1103804
Shares
1.95M
Value
47.07M
Filed
Sep 30, 2024
FRAZIER LIFE SCIENCES MANAGEMENT, L.P.
CIK 1892134
Shares
1.90M
Value
36.14M
Filed
Jun 30, 2026
CLEARBRIDGE INVESTMENTS, LLC
CIK 1348883
Shares
1.81M
Value
31.89M
Filed
Dec 31, 2025
BAMCO INC /NY/
CIK 1017918
Shares
1.62M
Value
30.85M
Filed
Jun 30, 2026
SEGANTII CAPITAL MANAGEMENT LTD
CIK 1544676
Shares
1.56M
Value
24.93M
Filed
Mar 31, 2024
CITADEL ADVISORS LLC
CIK 1423053
Shares
1.33M
Value
25.36M
Filed
Jun 30, 2026
TWO SIGMA INVESTMENTS, LP
CIK 1179392
Shares
1.30M
Value
24.69M
Filed
Jun 30, 2026
PARADIGM BIOCAPITAL ADVISORS LP
CIK 1855655
Shares
1.09M
Value
29.84M
Filed
Dec 31, 2023
ALLIANZ ASSET MANAGEMENT GMBH
CIK 1535323
Shares
815K
Value
27.62M
Filed
Sep 30, 2025
ROCK SPRINGS CAPITAL MANAGEMENT LP
CIK 1595725
Shares
814.71K
Value
15.48M
Filed
Jun 30, 2026
WELLINGTON MANAGEMENT GROUP LLP
CIK 902219
Shares
752.86K
Value
13.28M
Filed
Dec 31, 2025
| # | Institution | CIK | Shares | Est. Value | Period |
|---|---|---|---|---|---|
| 1 | RTW INVESTMENTS, LP | 1493215 | 6.57M | 124.91M | Jun 30, 2026 |
| 2 | TCG CROSSOVER MANAGEMENT, LLC | 1839948 | 6.14M | 116.61M | Jun 30, 2026 |
| 3 | CAPITAL WORLD INVESTORS | 1422849 | 6.08M | 205.97M | Sep 30, 2025 |
| 4 | RA CAPITAL MANAGEMENT, L.P. | 1346824 | 5.74M | 109.13M | Jun 30, 2026 |
| 5 | ADAR1 CAPITAL MANAGEMENT, LLC | 1940272 | 3.37M | 64.01M | Jun 30, 2026 |
| 6 | FMR LLC | 315066 | 2.82M | 53.49M | Jun 30, 2026 |
| 7 | GOLDMAN SACHS GROUP INC | 886982 | 2.32M | 43.99M | Jun 30, 2026 |
| 8 | WOODLINE PARTNERS LP | 1784547 | 2.21M | 41.94M | Jun 30, 2026 |
| 9 | JANUS HENDERSON GROUP LTD. | 1274173 | 2.05M | 69.49M | Sep 30, 2025 |
| 10 | VIKING GLOBAL INVESTORS LP | 1103804 | 1.95M | 47.07M | Sep 30, 2024 |
| 11 | FRAZIER LIFE SCIENCES MANAGEMENT, L.P. | 1892134 | 1.90M | 36.14M | Jun 30, 2026 |
| 12 | CLEARBRIDGE INVESTMENTS, LLC | 1348883 | 1.81M | 31.89M | Dec 31, 2025 |
| 13 | BAMCO INC /NY/ | 1017918 | 1.62M | 30.85M | Jun 30, 2026 |
| 14 | SEGANTII CAPITAL MANAGEMENT LTD | 1544676 | 1.56M | 24.93M | Mar 31, 2024 |
| 15 | CITADEL ADVISORS LLC | 1423053 | 1.33M | 25.36M | Jun 30, 2026 |
| 16 | TWO SIGMA INVESTMENTS, LP | 1179392 | 1.30M | 24.69M | Jun 30, 2026 |
| 17 | PARADIGM BIOCAPITAL ADVISORS LP | 1855655 | 1.09M | 29.84M | Dec 31, 2023 |
| 18 | ALLIANZ ASSET MANAGEMENT GMBH | 1535323 | 815K | 27.62M | Sep 30, 2025 |
| 19 | ROCK SPRINGS CAPITAL MANAGEMENT LP | 1595725 | 814.71K | 15.48M | Jun 30, 2026 |
| 20 | WELLINGTON MANAGEMENT GROUP LLP | 902219 | 752.86K | 13.28M | Dec 31, 2025 |
Data sourced from SEC Form 13F institutional holdings reports. Positions reflect the most recent filing per institution.