REDWOOD CITY, CA
ARCELLX, INC.ACLX— Latest position per institution from SEC 13F filings
15
Institutional holders
55.69M
Total shares held
5.20B
Estimated value
2.78M
Avg. position size
GILEAD SCIENCES, INC.
CIK 882095
Shares
6.72M
Value
771.68M
Filed
Mar 31, 2026
PARADIGM BIOCAPITAL ADVISORS LP
CIK 1855655
Shares
5.77M
Value
662.97M
Filed
Mar 31, 2026
VANGUARD GROUP INC
CIK 102909
Shares
4.08M
Value
266.12M
Filed
Dec 31, 2025
BLACKROCK, INC.
CIK 2012383
Shares
3.95M
Value
452.99M
Filed
Mar 31, 2026
BLACKROCK FINANCE, INC.
CIK 1364742
Shares
3.52M
Value
194.07M
Filed
Jun 30, 2024
NEA MANAGEMENT COMPANY, LLC
CIK 1512848
Shares
3.05M
Value
349.66M
Filed
Mar 31, 2026
VESTAL POINT CAPITAL, LP
CIK 1974915
Shares
2.92M
Value
190.71M
Filed
Dec 31, 2025
PENTWATER CAPITAL MANAGEMENT LP
CIK 1425851
Shares
2.87M
Value
329.53M
Filed
Mar 31, 2026
VANGUARD CAPITAL MANAGEMENT LLC
CIK 2100119
Shares
2.43M
Value
278.46M
Filed
Mar 31, 2026
VANGUARD PORTFOLIO MANAGEMENT LLC
CIK 2100121
Shares
2.42M
Value
278.42M
Filed
Mar 31, 2026
SR ONE CAPITAL MANAGEMENT, LP
CIK 1910264
Shares
2.35M
Value
269.44M
Filed
Mar 31, 2026
FIL LTD
CIK 318989
Shares
2.34M
Value
268.59M
Filed
Mar 31, 2026
HBK INVESTMENTS L P
CIK 1011443
Shares
2.28M
Value
261.62M
Filed
Mar 31, 2026
T. ROWE PRICE INVESTMENT MANAGEMENT, INC.
CIK 1897612
Shares
2.26M
Value
259.02K
Filed
Mar 31, 2026
STATE STREET CORP
CIK 93751
Shares
1.68M
Value
192.43M
Filed
Mar 31, 2026
GLAZER CAPITAL, LLC
CIK 1076809
Shares
1.51M
Value
173.07K
Filed
Mar 31, 2026
PERCEPTIVE ADVISORS LLC
CIK 1224962
Shares
1.47M
Value
95.59M
Filed
Dec 31, 2025
JPMORGAN CHASE & CO
CIK 19617
Shares
1.45M
Value
94.83M
Filed
Dec 31, 2025
GOLDMAN SACHS GROUP INC
CIK 886982
Shares
1.37M
Value
156.75M
Filed
Mar 31, 2026
RA CAPITAL MANAGEMENT, L.P.
CIK 1346824
Shares
1.27M
Value
82.62M
Filed
Dec 31, 2025
| # | Institution | CIK | Shares | Est. Value | Period |
|---|---|---|---|---|---|
| 1 | GILEAD SCIENCES, INC. | 882095 | 6.72M | 771.68M | Mar 31, 2026 |
| 2 | PARADIGM BIOCAPITAL ADVISORS LP | 1855655 | 5.77M | 662.97M | Mar 31, 2026 |
| 3 | VANGUARD GROUP INC | 102909 | 4.08M | 266.12M | Dec 31, 2025 |
| 4 | BLACKROCK, INC. | 2012383 | 3.95M | 452.99M | Mar 31, 2026 |
| 5 | BLACKROCK FINANCE, INC. | 1364742 | 3.52M | 194.07M | Jun 30, 2024 |
| 6 | NEA MANAGEMENT COMPANY, LLC | 1512848 | 3.05M | 349.66M | Mar 31, 2026 |
| 7 | VESTAL POINT CAPITAL, LP | 1974915 | 2.92M | 190.71M | Dec 31, 2025 |
| 8 | PENTWATER CAPITAL MANAGEMENT LP | 1425851 | 2.87M | 329.53M | Mar 31, 2026 |
| 9 | VANGUARD CAPITAL MANAGEMENT LLC | 2100119 | 2.43M | 278.46M | Mar 31, 2026 |
| 10 | VANGUARD PORTFOLIO MANAGEMENT LLC | 2100121 | 2.42M | 278.42M | Mar 31, 2026 |
| 11 | SR ONE CAPITAL MANAGEMENT, LP | 1910264 | 2.35M | 269.44M | Mar 31, 2026 |
| 12 | FIL LTD | 318989 | 2.34M | 268.59M | Mar 31, 2026 |
| 13 | HBK INVESTMENTS L P | 1011443 | 2.28M | 261.62M | Mar 31, 2026 |
| 14 | T. ROWE PRICE INVESTMENT MANAGEMENT, INC. | 1897612 | 2.26M | 259.02K | Mar 31, 2026 |
| 15 | STATE STREET CORP | 93751 | 1.68M | 192.43M | Mar 31, 2026 |
| 16 | GLAZER CAPITAL, LLC | 1076809 | 1.51M | 173.07K | Mar 31, 2026 |
| 17 | PERCEPTIVE ADVISORS LLC | 1224962 | 1.47M | 95.59M | Dec 31, 2025 |
| 18 | JPMORGAN CHASE & CO | 19617 | 1.45M | 94.83M | Dec 31, 2025 |
| 19 | GOLDMAN SACHS GROUP INC | 886982 | 1.37M | 156.75M | Mar 31, 2026 |
| 20 | RA CAPITAL MANAGEMENT, L.P. | 1346824 | 1.27M | 82.62M | Dec 31, 2025 |
Data sourced from SEC Form 13F institutional holdings reports. Positions reflect the most recent filing per institution.