CAMBRIDGE, MA
PRIME MEDICINE, INC.PRME— Latest position per institution from SEC 13F filings
15
Institutional holders
91.33M
Total shares held
317M
Estimated value
4.57M
Avg. position size
ALPHABET INC.
CIK 1652044
Shares
16.56M
Value
57.64M
Filed
Mar 31, 2026
BLACKROCK, INC.
CIK 2012383
Shares
8.50M
Value
29.59M
Filed
Mar 31, 2026
VANGUARD GROUP INC
CIK 102909
Shares
6.47M
Value
22.44M
Filed
Dec 31, 2025
STATE STREET CORP
CIK 93751
Shares
6.35M
Value
22.08M
Filed
Mar 31, 2026
ARK INVESTMENT MANAGEMENT LLC
CIK 1697748
Shares
6.25M
Value
21.74M
Filed
Mar 31, 2026
T. ROWE PRICE INVESTMENT MANAGEMENT, INC.
CIK 1897612
Shares
5.48M
Value
19.08K
Filed
Mar 31, 2026
BLACKROCK FINANCE, INC.
CIK 1364742
Shares
5.11M
Value
26.27M
Filed
Jun 30, 2024
VANGUARD CAPITAL MANAGEMENT LLC
CIK 2100119
Shares
4.47M
Value
15.57M
Filed
Mar 31, 2026
BALYASNY ASSET MANAGEMENT L.P.
CIK 1218710
Shares
4.12M
Value
14.35M
Filed
Mar 31, 2026
CASDIN CAPITAL, LLC
CIK 1534261
Shares
3.17M
Value
11.02M
Filed
Mar 31, 2026
WOODLINE PARTNERS LP
CIK 1784547
Shares
3M
Value
10.45M
Filed
Mar 31, 2026
RA CAPITAL MANAGEMENT, L.P.
CIK 1346824
Shares
3M
Value
16.62M
Filed
Sep 30, 2025
SUMITOMO MITSUI TRUST GROUP, INC.
CIK 1475365
Shares
2.94M
Value
10.23M
Filed
Mar 31, 2026
AMOVA ASSET MANAGEMENT AMERICAS, INC.
CIK 1480751
Shares
2.94M
Value
10.20M
Filed
Mar 31, 2026
UBS GROUP AG
CIK 1610520
Shares
2.89M
Value
10.05M
Filed
Mar 31, 2026
GEODE CAPITAL MANAGEMENT, LLC
CIK 1214717
Shares
2.74M
Value
9.55M
Filed
Mar 31, 2026
ADAR1 CAPITAL MANAGEMENT, LLC
CIK 1940272
Shares
1.97M
Value
6.87M
Filed
Mar 31, 2026
MWG MANAGEMENT LTD.
CIK 1845151
Shares
1.79M
Value
9.93M
Filed
Sep 30, 2025
MWG CAPH LTD
CIK 2111120
Shares
1.79M
Value
6.22M
Filed
Dec 31, 2025
FMR LLC
CIK 315066
Shares
1.77M
Value
6.16M
Filed
Mar 31, 2026
| # | Institution | CIK | Shares | Est. Value | Period |
|---|---|---|---|---|---|
| 1 | ALPHABET INC. | 1652044 | 16.56M | 57.64M | Mar 31, 2026 |
| 2 | BLACKROCK, INC. | 2012383 | 8.50M | 29.59M | Mar 31, 2026 |
| 3 | VANGUARD GROUP INC | 102909 | 6.47M | 22.44M | Dec 31, 2025 |
| 4 | STATE STREET CORP | 93751 | 6.35M | 22.08M | Mar 31, 2026 |
| 5 | ARK INVESTMENT MANAGEMENT LLC | 1697748 | 6.25M | 21.74M | Mar 31, 2026 |
| 6 | T. ROWE PRICE INVESTMENT MANAGEMENT, INC. | 1897612 | 5.48M | 19.08K | Mar 31, 2026 |
| 7 | BLACKROCK FINANCE, INC. | 1364742 | 5.11M | 26.27M | Jun 30, 2024 |
| 8 | VANGUARD CAPITAL MANAGEMENT LLC | 2100119 | 4.47M | 15.57M | Mar 31, 2026 |
| 9 | BALYASNY ASSET MANAGEMENT L.P. | 1218710 | 4.12M | 14.35M | Mar 31, 2026 |
| 10 | CASDIN CAPITAL, LLC | 1534261 | 3.17M | 11.02M | Mar 31, 2026 |
| 11 | WOODLINE PARTNERS LP | 1784547 | 3M | 10.45M | Mar 31, 2026 |
| 12 | RA CAPITAL MANAGEMENT, L.P. | 1346824 | 3M | 16.62M | Sep 30, 2025 |
| 13 | SUMITOMO MITSUI TRUST GROUP, INC. | 1475365 | 2.94M | 10.23M | Mar 31, 2026 |
| 14 | AMOVA ASSET MANAGEMENT AMERICAS, INC. | 1480751 | 2.94M | 10.20M | Mar 31, 2026 |
| 15 | UBS GROUP AG | 1610520 | 2.89M | 10.05M | Mar 31, 2026 |
| 16 | GEODE CAPITAL MANAGEMENT, LLC | 1214717 | 2.74M | 9.55M | Mar 31, 2026 |
| 17 | ADAR1 CAPITAL MANAGEMENT, LLC | 1940272 | 1.97M | 6.87M | Mar 31, 2026 |
| 18 | MWG MANAGEMENT LTD. | 1845151 | 1.79M | 9.93M | Sep 30, 2025 |
| 19 | MWG CAPH LTD | 2111120 | 1.79M | 6.22M | Dec 31, 2025 |
| 20 | FMR LLC | 315066 | 1.77M | 6.16M | Mar 31, 2026 |
Data sourced from SEC Form 13F institutional holdings reports. Positions reflect the most recent filing per institution.