13F Insight
DOSSIER · 13F Holders · Q2 2026

MAREX GROUP PLC

210 institutions still hold MAREX GROUP PLC as of Q2 2026. Tracked across SEC 13F-HR filings, with insider and 13D/G activity surfaced alongside.

CUSIP G5S37H101·210 13F holders·last filed Jun 30, 2026
Market cap
—
13F value held
$2.0B
visible holders
Holders
210
filers reporting
Concentration
16.09%
FMR LLC #1
top holder share
AI Holders Summary · Q2 2026

210 institutions reported MAREX GROUP PLC in Q2 2026. FMR LLC leads at 16.1% of the visible book.

Top holders

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

#HolderValueShares% port.Quarter
01
FMR LLC
CIK 0000315066
$327M5.4M0.01%Q2 202602
BlackRock, Inc.
CIK 0002012383
$280M4.6M0.00%Q2 202603
Capital International Investors
CIK 0001562230
$199M3.3M0.04%Q2 202604
LOOMIS SAYLES & CO L P
CIK 0000312348
$99M1.6M0.12%Q2 202605
SAMLYN CAPITAL, LLC
CIK 0001421097
$90M1.5M1.47%Q2 202606
Invesco Ltd.
CIK 0000914208
$86M1.4M0.01%Q2 202607
PRICE T ROWE ASSOCIATES INC /MD/
CIK 0000080255
$85M1.9M0.01%Q1 202608
Ophir Asset Management Pty Ltd
CIK 0001844640
$85M1.4M6.98%Q2 202609
TWO SIGMA INVESTMENTS, LP
CIK 0001179392
$81M1.3M0.06%Q2 202610
VICTORY CAPITAL MANAGEMENT INC
CIK 0001040188
$79M1.3M0.04%Q2 202611
Granahan Investment Management, LLC
CIK 0001026710
$76M1.3M2.72%Q2 202612
MORGAN STANLEY
CIK 0000895421
$71M1.2M0.00%Q2 202613
ROYCE & ASSOCIATES LP
CIK 0000906304
$68M1.1M0.55%Q2 202614
ALLIANCEBERNSTEIN L.P.
CIK 0001109448
$66M1.7M0.02%Q1 202615
STATE STREET CORP
CIK 0000093751
$63M1.0M0.00%Q2 202616
WILLIAM BLAIR INVESTMENT MANAGEMENT, LLC
CIK 0001644956
$62M1.0M0.18%Q2 202617
HEALTHCARE OF ONTARIO PENSION PLAN TRUST FUND
CIK 0001535845
$61M1.0M0.09%Q2 202618
AMERIPRISE FINANCIAL INC
CIK 0000820027
$55M904K0.01%Q2 202619
GEODE CAPITAL MANAGEMENT, LLC
CIK 0001214717· Index
$53M897K0.00%Q2 202620
WELLINGTON MANAGEMENT GROUP LLP
CIK 0000902219
$47M775K0.01%Q2 2026
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