13F Insight
DOSSIER · 13F Holders · Q1 2026Cheap mega-capRe-rated

JANUS HENDERSON GROUP PLC

510 institutions still hold JANUS HENDERSON GROUP PLC as of Q1 2026. Tracked across SEC 13F-HR filings, with insider and 13D/G activity surfaced alongside.

CUSIP g4474y214·510 13F holders·last filed Mar 31, 2026
Market cap
—
▼ 5.0%
vs prior quarter
13F value held
$5.1B
77.0% inst. owned
of float
Holders
510
+8 QoQ
filers reporting
Activity
+42 / −62
+863 added · −660 reduced
this quarter
Concentration
31.96%
TRIAN FUND MANAGEMENT, L.P. #1
top holder share
AI Holders Summary · Q1 2026

510 institutions reported JANUS HENDERSON GROUP PLC in Q1 2026. TRIAN FUND MANAGEMENT, L.P. leads at 32.0% of the visible book. +8 net new institutions vs prior quarter — accumulation reading.

Top holders

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

#HolderValueShares% port.Quarter
01
TRIAN FUND MANAGEMENT, L.P.
CIK 0001345471
$1.6B31.9M42.41%Q1 202602
BlackRock, Inc.
CIK 0002012383
$758M14.8M0.01%Q1 202603
Vanguard Portfolio Management
CIK 0002100121
$296M5.8M0.02%Q1 202604
VANGUARD CAPITAL MANAGEMENT LLC
CIK 0002100119· Index
$285M5.6M0.01%Q1 202605
STATE STREET CORP
CIK 0000093751
$225M4.4M0.01%Q1 202606
DIMENSIONAL FUND ADVISORS LP
CIK 0000354204· Quasi-passive
$219M4.3M0.05%Q1 202607
HBK INVESTMENTS L P
CIK 0001011443
$217M4.2M2.21%Q1 202608
AQR CAPITAL MANAGEMENT LLC
CIK 0001167557
$172M3.3M0.08%Q1 202609
Allianz Asset Management GmbH
CIK 0001535323
$164M3.2M0.17%Q1 202610
GEODE CAPITAL MANAGEMENT, LLC
CIK 0001214717· Index
$136M2.6M0.01%Q1 202611
GOLDMAN SACHS GROUP INC
CIK 0000886982
$123M2.4M0.01%Q1 202612
MILLENNIUM MANAGEMENT LLC
CIK 0001273087
$120M2.3M0.05%Q1 202613
Qube Research & Technologies Ltd
CIK 0001729829
$117M2.3M0.13%Q1 202614
Neuberger Berman Group LLC
CIK 0001465109
$114M2.2M0.09%Q1 202615
TIG Advisors, LLC
CIK 0001358253
$98M1.9M4.53%Q1 202616
NORTHERN TRUST CORP
CIK 0000073124· Index
$98M1.9M0.01%Q1 202617
CHARLES SCHWAB INVESTMENT MANAGEMENT INC
CIK 0000884546· Index
$92M1.8M0.01%Q1 202618
JPMORGAN CHASE & CO
CIK 0000019617
$90M1.7M0.01%Q1 202619
MORGAN STANLEY
CIK 0000895421
$83M1.6M0.01%Q1 202620
Quantinno Capital Management LP
CIK 0001759654
$76M1.5M0.13%Q1 2026
Page 1 of 26
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