13F Insight
DOSSIER · 13F Holders · Q1 2026Healthcare · Biological Products, (No Diagnostic Substances)BellwetherCompounder
RGEN

REPLIGEN CORP

465 institutions still hold REPLIGEN CORP as of Q1 2026. Tracked across SEC 13F-HR filings, with insider and 13D/G activity surfaced alongside.

CUSIP 759916109·Biological Products, (No Diagnostic Substances)·465 13F holders·last filed Mar 31, 2026
Market cap
—
▲ 3.5%
vs prior quarter
13F value held
$4.2B
67.0% inst. owned
of float
Holders
465
-2 QoQ
filers reporting
Activity
+11 / −72
+859 added · −753 reduced
this quarter
Concentration
16.87%
BlackRock, Inc. #1
top holder share
AI Holders Summary · Q1 2026

465 institutions reported RGEN in Q1 2026. BlackRock, Inc. leads at 16.9% of the visible book. -2 net institutions QoQ — distribution reading.

Top holders

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

#HolderValueShares% port.Quarter
01
BlackRock, Inc.
CIK 0002012383
$706M6.0M0.01%Q1 202602
FMR LLC
CIK 0000315066
$340M2.9M0.02%Q1 202603
UNITED CAPITAL FINANCIAL ADVISORS, LLC
CIK 0001463217
$327M2.8M2.01%Q1 202604
VANGUARD CAPITAL MANAGEMENT LLC
CIK 0002100119· Index
$282M2.4M0.01%Q1 202605
Vanguard Portfolio Management
CIK 0002100121
$272M2.3M0.01%Q1 202606
CITADEL ADVISORS LLC
CIK 0001423053
$235M1.4M0.04%Q4 202507
STATE STREET CORP
CIK 0000093751
$209M1.8M0.01%Q1 202608
Bank of New York Mellon Corp
CIK 0001390777
$180M1.5M0.03%Q1 202609
MAVERICK CAPITAL LTD
CIK 0000934639
$179M1.5M2.06%Q1 202610
MASSACHUSETTS FINANCIAL SERVICES CO /MA/
CIK 0000912938
$165M1.4M0.06%Q1 202611
Invesco Ltd.
CIK 0000914208
$151M1.3M0.02%Q1 202612
WASATCH ADVISORS LP
CIK 0000814133
$147M1.2M0.97%Q1 202613
RTW INVESTMENTS, LP
CIK 0001493215
$142M1.2M1.41%Q1 202614
FRANKLIN RESOURCES INC
CIK 0000038777
$141M1.2M0.03%Q1 202615
ALLIANCEBERNSTEIN L.P.
CIK 0001109448
$136M832K0.04%Q1 202616
Conestoga Capital Advisors, LLC
CIK 0001163744
$129M1.1M2.58%Q1 202617
GEODE CAPITAL MANAGEMENT, LLC
CIK 0001214717· Index
$125M1.1M0.01%Q1 202618
AMERIPRISE FINANCIAL INC
CIK 0000820027
$109M925K0.03%Q1 202619
Vestal Point Capital, LP
CIK 0001974915
$109M925K3.05%Q1 202620
DIMENSIONAL FUND ADVISORS LP
CIK 0000354204· Quasi-passive
$101M855K0.02%Q1 2026
Page 1 of 24
445 more holders available. Log in →