BERKELEY, CA
CARIBOU BIOSCIENCES, INC.CRBU— Latest position per institution from SEC 13F filings
15
Institutional holders
52.69M
Total shares held
145.06M
Estimated value
2.63M
Avg. position size
BLACKROCK FINANCE, INC.
CIK 1364742
Shares
6.95M
Value
11.39M
Filed
Jun 30, 2024
AVIDITY PARTNERS MANAGEMENT LP
CIK 1791827
Shares
5.79M
Value
29.74M
Filed
Mar 31, 2024
PFIZER INC
CIK 78003
Shares
4.69M
Value
8.35M
Filed
Mar 31, 2026
VANGUARD GROUP INC
CIK 102909
Shares
4.30M
Value
6.84M
Filed
Dec 31, 2025
VANGUARD CAPITAL MANAGEMENT LLC
CIK 2100119
Shares
3.77M
Value
7.16M
Filed
Mar 31, 2026
DEERFIELD MANAGEMENT COMPANY, L.P.
CIK 1009258
Shares
3.50M
Value
16.73M
Filed
Sep 30, 2023
ALKEON CAPITAL MANAGEMENT LLC
CIK 1230239
Shares
2.74M
Value
14.10M
Filed
Mar 31, 2024
RENAISSANCE TECHNOLOGIES LLC
CIK 1037389
Shares
2.59M
Value
4.92M
Filed
Mar 31, 2026
KYNAM CAPITAL MANAGEMENT, LP
CIK 1907884
Shares
2.50M
Value
4.76M
Filed
Mar 31, 2026
PARADIGM BIOCAPITAL ADVISORS LP
CIK 1855655
Shares
2.17M
Value
11.17M
Filed
Mar 31, 2024
BLACKROCK, INC.
CIK 2012383
Shares
2.14M
Value
4.07M
Filed
Mar 31, 2026
PICTET ASSET MANAGEMENT SA
CIK 1361570
Shares
1.81M
Value
7.69M
Filed
Jun 30, 2023
TWO SIGMA INVESTMENTS, LP
CIK 1179392
Shares
1.76M
Value
3.34M
Filed
Mar 31, 2026
BANK OF AMERICA CORP /DE/
CIK 70858
Shares
1.30M
Value
2.46M
Filed
Mar 31, 2026
ABERDEEN GROUP PLC
CIK 1716774
Shares
1.21M
Value
2.30M
Filed
Mar 31, 2026
MARSHALL WACE, LLP
CIK 1318757
Shares
1.21M
Value
2.29M
Filed
Mar 31, 2026
TWO SIGMA ADVISERS, LP
CIK 1478735
Shares
1.12M
Value
1.77M
Filed
Dec 31, 2025
MILLENNIUM MANAGEMENT LLC
CIK 1273087
Shares
1.07M
Value
2.04M
Filed
Mar 31, 2026
SUSQUEHANNA INTERNATIONAL GROUP, LLP
CIK 1446194
Shares
1.05M
Value
1.99M
Filed
Mar 31, 2026
GEODE CAPITAL MANAGEMENT, LLC
CIK 1214717
Shares
1.02M
Value
1.93M
Filed
Mar 31, 2026
| # | Institution | CIK | Shares | Est. Value | Period |
|---|---|---|---|---|---|
| 1 | BLACKROCK FINANCE, INC. | 1364742 | 6.95M | 11.39M | Jun 30, 2024 |
| 2 | AVIDITY PARTNERS MANAGEMENT LP | 1791827 | 5.79M | 29.74M | Mar 31, 2024 |
| 3 | PFIZER INC | 78003 | 4.69M | 8.35M | Mar 31, 2026 |
| 4 | VANGUARD GROUP INC | 102909 | 4.30M | 6.84M | Dec 31, 2025 |
| 5 | VANGUARD CAPITAL MANAGEMENT LLC | 2100119 | 3.77M | 7.16M | Mar 31, 2026 |
| 6 | DEERFIELD MANAGEMENT COMPANY, L.P. | 1009258 | 3.50M | 16.73M | Sep 30, 2023 |
| 7 | ALKEON CAPITAL MANAGEMENT LLC | 1230239 | 2.74M | 14.10M | Mar 31, 2024 |
| 8 | RENAISSANCE TECHNOLOGIES LLC | 1037389 | 2.59M | 4.92M | Mar 31, 2026 |
| 9 | KYNAM CAPITAL MANAGEMENT, LP | 1907884 | 2.50M | 4.76M | Mar 31, 2026 |
| 10 | PARADIGM BIOCAPITAL ADVISORS LP | 1855655 | 2.17M | 11.17M | Mar 31, 2024 |
| 11 | BLACKROCK, INC. | 2012383 | 2.14M | 4.07M | Mar 31, 2026 |
| 12 | PICTET ASSET MANAGEMENT SA | 1361570 | 1.81M | 7.69M | Jun 30, 2023 |
| 13 | TWO SIGMA INVESTMENTS, LP | 1179392 | 1.76M | 3.34M | Mar 31, 2026 |
| 14 | BANK OF AMERICA CORP /DE/ | 70858 | 1.30M | 2.46M | Mar 31, 2026 |
| 15 | ABERDEEN GROUP PLC | 1716774 | 1.21M | 2.30M | Mar 31, 2026 |
| 16 | MARSHALL WACE, LLP | 1318757 | 1.21M | 2.29M | Mar 31, 2026 |
| 17 | TWO SIGMA ADVISERS, LP | 1478735 | 1.12M | 1.77M | Dec 31, 2025 |
| 18 | MILLENNIUM MANAGEMENT LLC | 1273087 | 1.07M | 2.04M | Mar 31, 2026 |
| 19 | SUSQUEHANNA INTERNATIONAL GROUP, LLP | 1446194 | 1.05M | 1.99M | Mar 31, 2026 |
| 20 | GEODE CAPITAL MANAGEMENT, LLC | 1214717 | 1.02M | 1.93M | Mar 31, 2026 |
Data sourced from SEC Form 13F institutional holdings reports. Positions reflect the most recent filing per institution.