13F Insight
DOSSIER · 13F Holders · Q1 2026CyclicalNet sold

MEIRAGTX HOLDINGS PLC

138 institutions still hold MEIRAGTX HOLDINGS PLC as of Q1 2026. Tracked across SEC 13F-HR filings, with insider and 13D/G activity surfaced alongside.

CUSIP g59665102·138 13F holders·last filed Mar 31, 2026
Market cap
—
▼ 1.7%
vs prior quarter
13F value held
$506M
60.0% inst. owned
of float
Holders
138
-111 QoQ
filers reporting
Activity
+28 / −116
+861 added · −825 reduced
this quarter
Concentration
20.86%
Sanofi #1
top holder share
AI Holders Summary · Q1 2026

138 institutions reported MEIRAGTX HOLDINGS PLC in Q1 2026. Sanofi leads at 20.9% of the visible book. -111 net institutions QoQ — distribution reading.

Top holders

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

#HolderValueShares% port.Quarter
01
Sanofi
CIK 0001121404
$106M12.2M31.44%Q1 202602
PERCEPTIVE ADVISORS LLC
CIK 0001224962
$89M10.3M1.75%Q1 202603
JOHNSON & JOHNSON
CIK 0000200406
$58M6.6M8.82%Q1 202604
Rubric Capital Management LP
CIK 0001687509
$49M6.2M0.59%Q4 202505
ADAGE CAPITAL PARTNERS GP, L.L.C.
CIK 0001165408
$35M4.0M0.05%Q1 202606
MILLENNIUM MANAGEMENT LLC
CIK 0001273087
$30M3.5M0.01%Q1 202607
BlackRock, Inc.
CIK 0002012383
$27M3.2M0.00%Q1 202608
Prosight Management, LP
CIK 0001617201
$23M2.6M3.73%Q1 202609
683 Capital Management, LLC
CIK 0001404574
$20M2.6M0.89%Q4 202510
MORGAN STANLEY
CIK 0000895421
$14M1.6M0.00%Q1 202611
Knoll Capital Management, LLC
CIK 0001325083
$10M1.3M4.56%Q4 202512
KENNEDY CAPITAL MANAGEMENT LLC
CIK 0000884589
$7M858K0.16%Q1 202613
STATE STREET CORP
CIK 0000093751
$7M753K0.00%Q1 202614
Logos Global Management LP
CIK 0001792126
$6M700K0.30%Q1 202615
Erste Asset Management GmbH
CIK 0002024532
$6M720K0.05%Q1 202616
GEODE CAPITAL MANAGEMENT, LLC
CIK 0001214717· Index
$5M585K0.00%Q1 202617
Long Focus Capital Management, LLC
CIK 0001602716
$5M525K0.12%Q1 202618
GOLDMAN SACHS GROUP INC
CIK 0000886982
$4M441K0.00%Q1 202619
Vanguard Portfolio Management
CIK 0002100121
$3M397K0.00%Q1 202620
Opaleye Management Inc.
CIK 0001595855
$3M391K0.41%Q4 2025
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