CAMBRIDGE, MA
PRIME MEDICINE, INC.PRME— Latest position per institution from SEC 13F filings
15
Institutional holders
96.47M
Total shares held
351.50M
Estimated value
4.82M
Avg. position size
ALPHABET INC.
CIK 1652044
Shares
16.56M
Value
61.12M
Filed
Jun 30, 2026
BLACKROCK, INC.
CIK 2012383
Shares
9.60M
Value
35.43M
Filed
Jun 30, 2026
ARK INVESTMENT MANAGEMENT LLC
CIK 1697748
Shares
8.35M
Value
30.81M
Filed
Jun 30, 2026
STATE STREET CORP
CIK 93751
Shares
7.58M
Value
27.96M
Filed
Jun 30, 2026
VANGUARD GROUP INC
CIK 102909
Shares
6.47M
Value
22.44M
Filed
Dec 31, 2025
T. ROWE PRICE INVESTMENT MANAGEMENT, INC.
CIK 1897612
Shares
5.24M
Value
19.33K
Filed
Jun 30, 2026
BLACKROCK FINANCE, INC.
CIK 1364742
Shares
5.11M
Value
26.27M
Filed
Jun 30, 2024
VANGUARD CAPITAL MANAGEMENT LLC
CIK 2100119
Shares
4.52M
Value
16.69M
Filed
Jun 30, 2026
BALYASNY ASSET MANAGEMENT L.P.
CIK 1218710
Shares
3.97M
Value
14.65M
Filed
Jun 30, 2026
GOLDMAN SACHS GROUP INC
CIK 886982
Shares
3.43M
Value
12.66M
Filed
Jun 30, 2026
CASDIN CAPITAL, LLC
CIK 1534261
Shares
3.17M
Value
11.69M
Filed
Jun 30, 2026
WOODLINE PARTNERS LP
CIK 1784547
Shares
3M
Value
11.08M
Filed
Jun 30, 2026
RA CAPITAL MANAGEMENT, L.P.
CIK 1346824
Shares
3M
Value
16.62M
Filed
Sep 30, 2025
UBS GROUP AG
CIK 1610520
Shares
2.79M
Value
10.31M
Filed
Jun 30, 2026
GEODE CAPITAL MANAGEMENT, LLC
CIK 1214717
Shares
2.71M
Value
10.01M
Filed
Jun 30, 2026
SUMITOMO MITSUI TRUST GROUP, INC.
CIK 1475365
Shares
2.41M
Value
8.90M
Filed
Jun 30, 2026
AMOVA ASSET MANAGEMENT AMERICAS, INC.
CIK 1480751
Shares
2.41M
Value
8.86M
Filed
Jun 30, 2026
CITADEL ADVISORS LLC
CIK 1423053
Shares
2.35M
Value
8.68M
Filed
Jun 30, 2026
ADAR1 CAPITAL MANAGEMENT, LLC
CIK 1940272
Shares
2M
Value
7.37M
Filed
Jun 30, 2026
MWG MANAGEMENT LTD.
CIK 1845151
Shares
1.79M
Value
9.93M
Filed
Sep 30, 2025
| # | Institution | CIK | Shares | Est. Value | Period |
|---|---|---|---|---|---|
| 1 | ALPHABET INC. | 1652044 | 16.56M | 61.12M | Jun 30, 2026 |
| 2 | BLACKROCK, INC. | 2012383 | 9.60M | 35.43M | Jun 30, 2026 |
| 3 | ARK INVESTMENT MANAGEMENT LLC | 1697748 | 8.35M | 30.81M | Jun 30, 2026 |
| 4 | STATE STREET CORP | 93751 | 7.58M | 27.96M | Jun 30, 2026 |
| 5 | VANGUARD GROUP INC | 102909 | 6.47M | 22.44M | Dec 31, 2025 |
| 6 | T. ROWE PRICE INVESTMENT MANAGEMENT, INC. | 1897612 | 5.24M | 19.33K | Jun 30, 2026 |
| 7 | BLACKROCK FINANCE, INC. | 1364742 | 5.11M | 26.27M | Jun 30, 2024 |
| 8 | VANGUARD CAPITAL MANAGEMENT LLC | 2100119 | 4.52M | 16.69M | Jun 30, 2026 |
| 9 | BALYASNY ASSET MANAGEMENT L.P. | 1218710 | 3.97M | 14.65M | Jun 30, 2026 |
| 10 | GOLDMAN SACHS GROUP INC | 886982 | 3.43M | 12.66M | Jun 30, 2026 |
| 11 | CASDIN CAPITAL, LLC | 1534261 | 3.17M | 11.69M | Jun 30, 2026 |
| 12 | WOODLINE PARTNERS LP | 1784547 | 3M | 11.08M | Jun 30, 2026 |
| 13 | RA CAPITAL MANAGEMENT, L.P. | 1346824 | 3M | 16.62M | Sep 30, 2025 |
| 14 | UBS GROUP AG | 1610520 | 2.79M | 10.31M | Jun 30, 2026 |
| 15 | GEODE CAPITAL MANAGEMENT, LLC | 1214717 | 2.71M | 10.01M | Jun 30, 2026 |
| 16 | SUMITOMO MITSUI TRUST GROUP, INC. | 1475365 | 2.41M | 8.90M | Jun 30, 2026 |
| 17 | AMOVA ASSET MANAGEMENT AMERICAS, INC. | 1480751 | 2.41M | 8.86M | Jun 30, 2026 |
| 18 | CITADEL ADVISORS LLC | 1423053 | 2.35M | 8.68M | Jun 30, 2026 |
| 19 | ADAR1 CAPITAL MANAGEMENT, LLC | 1940272 | 2M | 7.37M | Jun 30, 2026 |
| 20 | MWG MANAGEMENT LTD. | 1845151 | 1.79M | 9.93M | Sep 30, 2025 |
Data sourced from SEC Form 13F institutional holdings reports. Positions reflect the most recent filing per institution.