SAN DIEGO, CA
ANAPTYSBIO, INCANAB— Latest position per institution from SEC 13F filings
15
Institutional holders
30.12M
Total shares held
1.47B
Estimated value
1.51M
Avg. position size
ECOR1 CAPITAL, LLC
CIK 1587114
Shares
7.88M
Value
531.91M
Filed
Jun 30, 2026
BLACKROCK, INC.
CIK 2012383
Shares
1.84M
Value
124.47M
Filed
Jun 30, 2026
FAIRMOUNT FUNDS MANAGEMENT LLC
CIK 1802528
Shares
1.82M
Value
24.05M
Filed
Dec 31, 2024
BLACKROCK FINANCE, INC.
CIK 1364742
Shares
1.77M
Value
44.35M
Filed
Jun 30, 2024
FRAZIER LIFE SCIENCES MANAGEMENT, L.P.
CIK 1892134
Shares
1.57M
Value
20.84M
Filed
Dec 31, 2024
VANGUARD GROUP INC
CIK 102909
Shares
1.54M
Value
74.85M
Filed
Dec 31, 2025
TANG CAPITAL MANAGEMENT LLC
CIK 1232621
Shares
1.33M
Value
89.83M
Filed
Jun 30, 2026
BOXER CAPITAL MANAGEMENT, LLC
CIK 2018299
Shares
1.30M
Value
24.17M
Filed
Mar 31, 2025
BOXER CAPITAL, LLC
CIK 1465837
Shares
1.30M
Value
43.55M
Filed
Sep 30, 2024
STATE STREET CORP
CIK 93751
Shares
1.29M
Value
86.82M
Filed
Jun 30, 2026
CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM
CIK 1081019
Shares
1.19M
Value
17.63K
Filed
Jun 30, 2026
BRAIDWELL LP
CIK 1920938
Shares
1.05M
Value
18.85M
Filed
Sep 30, 2023
VANGUARD CAPITAL MANAGEMENT LLC
CIK 2100119
Shares
906.23K
Value
61.17M
Filed
Jun 30, 2026
ASSENAGON ASSET MANAGEMENT S.A.
CIK 1546007
Shares
839.93K
Value
25.72M
Filed
Sep 30, 2025
AFFINITY ASSET ADVISORS, LLC
CIK 1773195
Shares
826.11K
Value
55.76M
Filed
Jun 30, 2026
MILLENNIUM MANAGEMENT LLC
CIK 1273087
Shares
822.32K
Value
55.51M
Filed
Jun 30, 2026
SANOFI
CIK 1121404
Shares
821.92K
Value
55.48M
Filed
Jun 30, 2026
WOODLINE PARTNERS LP
CIK 1784547
Shares
717.01K
Value
48.40M
Filed
Jun 30, 2026
683 CAPITAL MANAGEMENT, LLC
CIK 1404574
Shares
660K
Value
44.55M
Filed
Jun 30, 2026
GEODE CAPITAL MANAGEMENT, LLC
CIK 1214717
Shares
637.87K
Value
43.06M
Filed
Jun 30, 2026
| # | Institution | CIK | Shares | Est. Value | Period |
|---|---|---|---|---|---|
| 1 | ECOR1 CAPITAL, LLC | 1587114 | 7.88M | 531.91M | Jun 30, 2026 |
| 2 | BLACKROCK, INC. | 2012383 | 1.84M | 124.47M | Jun 30, 2026 |
| 3 | FAIRMOUNT FUNDS MANAGEMENT LLC | 1802528 | 1.82M | 24.05M | Dec 31, 2024 |
| 4 | BLACKROCK FINANCE, INC. | 1364742 | 1.77M | 44.35M | Jun 30, 2024 |
| 5 | FRAZIER LIFE SCIENCES MANAGEMENT, L.P. | 1892134 | 1.57M | 20.84M | Dec 31, 2024 |
| 6 | VANGUARD GROUP INC | 102909 | 1.54M | 74.85M | Dec 31, 2025 |
| 7 | TANG CAPITAL MANAGEMENT LLC | 1232621 | 1.33M | 89.83M | Jun 30, 2026 |
| 8 | BOXER CAPITAL MANAGEMENT, LLC | 2018299 | 1.30M | 24.17M | Mar 31, 2025 |
| 9 | BOXER CAPITAL, LLC | 1465837 | 1.30M | 43.55M | Sep 30, 2024 |
| 10 | STATE STREET CORP | 93751 | 1.29M | 86.82M | Jun 30, 2026 |
| 11 | CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM | 1081019 | 1.19M | 17.63K | Jun 30, 2026 |
| 12 | BRAIDWELL LP | 1920938 | 1.05M | 18.85M | Sep 30, 2023 |
| 13 | VANGUARD CAPITAL MANAGEMENT LLC | 2100119 | 906.23K | 61.17M | Jun 30, 2026 |
| 14 | ASSENAGON ASSET MANAGEMENT S.A. | 1546007 | 839.93K | 25.72M | Sep 30, 2025 |
| 15 | AFFINITY ASSET ADVISORS, LLC | 1773195 | 826.11K | 55.76M | Jun 30, 2026 |
| 16 | MILLENNIUM MANAGEMENT LLC | 1273087 | 822.32K | 55.51M | Jun 30, 2026 |
| 17 | SANOFI | 1121404 | 821.92K | 55.48M | Jun 30, 2026 |
| 18 | WOODLINE PARTNERS LP | 1784547 | 717.01K | 48.40M | Jun 30, 2026 |
| 19 | 683 CAPITAL MANAGEMENT, LLC | 1404574 | 660K | 44.55M | Jun 30, 2026 |
| 20 | GEODE CAPITAL MANAGEMENT, LLC | 1214717 | 637.87K | 43.06M | Jun 30, 2026 |
Data sourced from SEC Form 13F institutional holdings reports. Positions reflect the most recent filing per institution.