13F Insight
DOSSIER · 13F Holders · Q1 2026Healthcare · Biological Products, (No Diagnostic Substances)CyclicalNet sold
PRME

PRIME MEDICINE INC

198 institutions still hold PRIME MEDICINE INC as of Q1 2026. Tracked across SEC 13F-HR filings, with insider and 13D/G activity surfaced alongside.

CUSIP 74168J101·Biological Products, (No Diagnostic Substances)·198 13F holders·last filed Mar 31, 2026
Market cap
—
▼ 7.2%
vs prior quarter
13F value held
$273M
57.0% inst. owned
of float
Holders
198
+57 QoQ
filers reporting
Activity
+8 / −40
+933 added · −753 reduced
this quarter
Concentration
21.13%
Alphabet Inc. #1
top holder share
AI Holders Summary · Q1 2026

198 institutions reported PRME in Q1 2026. Alphabet Inc. leads at 21.1% of the visible book. +57 net new institutions vs prior quarter — accumulation reading.

Top holders

Sorted by position value. Source: SEC EDGAR 13F-HR filings.

#HolderValueShares% port.Quarter
01
Alphabet Inc.
CIK 0001652044
$58M16.6M1.44%Q1 202602
BlackRock, Inc.
CIK 0002012383
$30M8.5M0.00%Q1 202603
STATE STREET CORP
CIK 0000093751
$22M6.3M0.00%Q1 202604
ARK Investment Management LLC
CIK 0001697748
$22M6.2M0.17%Q1 202605
VANGUARD CAPITAL MANAGEMENT LLC
CIK 0002100119· Index
$16M4.5M0.00%Q1 202606
BALYASNY ASSET MANAGEMENT L.P.
CIK 0001218710
$14M4.1M0.02%Q1 202607
Casdin Capital, LLC
CIK 0001534261
$11M3.2M0.83%Q1 202608
Woodline Partners LP
CIK 0001784547
$10M3.0M0.04%Q1 202609
Sumitomo Mitsui Trust Group, Inc.
CIK 0001475365
$10M2.9M0.01%Q1 202610
Amova Asset Management Americas, Inc.
CIK 0001480751
$10M2.9M0.14%Q1 202611
UBS Group AG
CIK 0001610520
$10M2.9M0.00%Q1 202612
MWG Management Ltd.
CIK 0001845151
$10M1.8M12.21%Q3 202513
GEODE CAPITAL MANAGEMENT, LLC
CIK 0001214717· Index
$10M2.7M0.00%Q1 202614
ADAR1 Capital Management, LLC
CIK 0001940272
$7M2.0M0.40%Q1 202615
MWG Caph Ltd
CIK 0002111120
$6M1.8M8.59%Q4 202516
FMR LLC
CIK 0000315066
$6M1.8M0.00%Q1 202617
Redmile Group, LLC
CIK 0001425738
$6M1.6M0.37%Q1 202618
TWO SIGMA INVESTMENTS, LP
CIK 0001179392
$5M1.6M0.00%Q1 202619
D. E. Shaw & Co., Inc.
CIK 0001009207
$5M1.6M0.00%Q4 202520
SUSQUEHANNA INTERNATIONAL GROUP, LLP
CIK 0001446194· Market maker
$5M1.3M0.00%Q1 2026
Page 1 of 10
178 more holders available. Log in →