13F Insight
DOSSIER · 13F Holders · Q4 2025CyclicalNet sold
LRMR

LARIMAR THERAPEUTICS INC

165 institutions still hold LARIMAR THERAPEUTICS INC as of Q4 2025. Tracked across SEC 13F-HR filings, with insider and 13D/G activity surfaced alongside.

CUSIP 517125100·165 13F holders·last filed Dec 31, 2025
Market cap
—
▼ 2.9%
vs prior quarter
13F value held
$293M
72.0% inst. owned
of float
Holders
165
+78 QoQ
filers reporting
Activity
+94 / −62
+855 added · −728 reduced
this quarter
Concentration
39.79%
DEERFIELD MANAGEMENT COMPANY, L.P. #1
top holder share
AI Holders Summary · Q4 2025

165 institutions reported LRMR in Q4 2025. DEERFIELD MANAGEMENT COMPANY, L.P. leads at 39.8% of the visible book. +78 net new institutions vs prior quarter — accumulation reading.

Top holders

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

#HolderValueShares% port.Quarter
01
DEERFIELD MANAGEMENT COMPANY, L.P.
CIK 0001009258
$117M30.6M1.49%Q4 202502
Blue Owl Capital Holdings LP
CIK 0001858703
$32M7.1M8.61%Q1 202603
BlackRock, Inc.
CIK 0002012383
$17M3.8M0.00%Q1 202604
MILLENNIUM MANAGEMENT LLC
CIK 0001273087
$16M3.6M0.01%Q1 202605
AIGH Capital Management LLC
CIK 0001835943
$14M3.0M1.84%Q1 202606
DRIEHAUS CAPITAL MANAGEMENT LLC
CIK 0000938206
$13M2.9M0.10%Q1 202607
VANGUARD CAPITAL MANAGEMENT LLC
CIK 0002100119· Index
$13M2.9M0.00%Q1 202608
DAFNA Capital Management LLC
CIK 0001389933
$9M2.0M2.08%Q1 202609
GOLDMAN SACHS GROUP INC
CIK 0000886982
$7M1.7M0.00%Q1 202610
RTW INVESTMENTS, LP
CIK 0001493215
$7M1.5M0.07%Q1 202611
Deep Track Capital, LP
CIK 0001856083
$7M1.5M0.11%Q1 202612
Woodline Partners LP
CIK 0001784547
$6M1.4M0.02%Q1 202613
CITADEL ADVISORS LLC
CIK 0001423053
$5M1.4M0.00%Q4 202514
GEODE CAPITAL MANAGEMENT, LLC
CIK 0001214717· Index
$5M1.1M0.00%Q1 202615
Soleus Capital Management, L.P.
CIK 0001802630
$5M1.1M0.19%Q1 202616
Point72 Asset Management, L.P.
CIK 0001603466
$5M1.0M0.01%Q1 202617
STATE STREET CORP
CIK 0000093751
$4M911K0.00%Q1 202618
Gem Investment Advisors, LLC
CIK 0001580018
$4M854K3.78%Q1 202619
Qube Research & Technologies Ltd
CIK 0001729829
$4M848K0.00%Q1 202620
AQR CAPITAL MANAGEMENT LLC
CIK 0001167557
$4M818K0.00%Q1 2026
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