13F Insight
DOSSIER · 13F Holders · Q1 2026Mega-capCrowded
IMRX

IMMUNEERING CORP

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

CUSIP 45254E107·89 13F holders·last filed Mar 31, 2026
Market cap
—
▲ 5.7%
vs prior quarter
13F value held
$117M
66.0% inst. owned
of float
Holders
89
-96 QoQ
filers reporting
Activity
+8 / −8
+810 added · −827 reduced
this quarter
Concentration
43.51%
FMR LLC #1
top holder share
AI Holders Summary · Q1 2026

89 institutions reported IMRX in Q1 2026. FMR LLC leads at 43.5% of the visible book. -96 net institutions QoQ — distribution reading.

Top holders

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

#HolderValueShares% port.Quarter
01
FMR LLC
CIK 0000315066
$51M9.7M0.00%Q1 202602
Sanofi
CIK 0001121404
$14M2.7M4.25%Q1 202603
VANGUARD CAPITAL MANAGEMENT LLC
CIK 0002100119· Index
$12M2.3M0.00%Q1 202604
BlackRock, Inc.
CIK 0002012383
$8M1.5M0.00%Q1 202605
MILLENNIUM MANAGEMENT LLC
CIK 0001273087
$6M1.1M0.00%Q1 202606
GEODE CAPITAL MANAGEMENT, LLC
CIK 0001214717· Index
$3M638K0.00%Q1 202607
Occam Crest Management LP
CIK 0002085909
$3M498K2.28%Q4 202508
Connor, Clark & Lunn Investment Management Ltd.
CIK 0001596800
$2M400K0.00%Q1 202609
Summit Financial, LLC
CIK 0001765536
$2M377K0.03%Q1 202610
UBS Group AG
CIK 0001610520
$2M376K0.00%Q1 202611
GOLDMAN SACHS GROUP INC
CIK 0000886982
$2M328K0.00%Q1 202612
SUSQUEHANNA INTERNATIONAL GROUP, LLP
CIK 0001446194· Market maker
$2M326K0.00%Q1 202613
VANGUARD FIDUCIARY TRUST CO
CIK 0000933478· Index
$2M322K0.00%Q1 202614
MORGAN STANLEY
CIK 0000895421
$2M296K0.00%Q1 202615
STATE STREET CORP
CIK 0000093751
$1M269K0.00%Q1 202616
TWO SIGMA INVESTMENTS, LP
CIK 0001179392
$1M245K0.00%Q1 202617
Squarepoint Ops LLC
CIK 0001642575
$1M226K0.00%Q1 202618
CITADEL ADVISORS LLC
CIK 0001423053
$1M159K0.00%Q4 202519
683 Capital Management, LLC
CIK 0001404574
$991,586151K0.04%Q4 202520
Diametric Capital, LP
CIK 0001719087
$921,707175K0.24%Q1 2026
Page 1 of 5
69 more holders available. Log in →