Marex Group plc - Ordinary shares, nominal value of $0.001551 per ordinary share (MRX) Institutional Ownership

13F Institutional Holders and Ownership History from Q2 2024 to Q4 2025

Type / Class
Equity / Ordinary shares, nominal value of $0.001551 per ordinary share
Symbol
MRX on Nasdaq
Shares outstanding
71,679,940
Price per share
$38.36
All holders as of 30 Sep 2025
Q3 2025
Total 13F shares
51,342,780
Total reported value
$1,723,699,241
% of total 13F portfolios
0%
Share change
+588,467
Value change
-$9,291,321
Number of holders
189
Reported Shares, Excluding Options vs Price
Reported Value, Excluding Options
Total Investors

Significant Owners of Marex Group plc - Ordinary shares, nominal value of $0.001551 per ordinary share (MRX) based on Schedule 13D/G filings

Filer Ownership Change % Holdings Value Net Change Nb Shares Change % Reporting Name Report Period
JRJ Investor 1 Limited Partnership 10% $346,082,721 7,160,826 JRJ Investor 1 LP 30 Jun 2025
MASP Investor Limited Partnership 7% $242,839,111 5,024,604 MASP Investor Limited Partnership 30 Jun 2025

As of 30 Sep 2025, 189 institutional investors reported holding 51,342,780 shares of Marex Group plc - Ordinary shares, nominal value of $0.001551 per ordinary share (MRX). This represents 72% of the company’s total 71,679,940 outstanding shares.

Top 25 Institutional Shareholders

The largest institutional shareholders of Marex Group plc - Ordinary shares, nominal value of $0.001551 per ordinary share (MRX) together control 46% of the company’s outstanding shares — a level of ownership often associated with strong institutional conviction and long‑term capital commitment.

Institution Ownership % Shares Held Share Change % Portfolio % Holdings Value
BlackRock, Inc. 5.2% 3,715,680 +47% 0% $124,921,176
Capital International Investors 4.9% 3,488,093 0% 0.02% $117,269,687
LOOMIS SAYLES & CO L P 2.5% 1,786,767 +1.1% 0.07% $60,071,106
Grandeur Peak Global Advisors, LLC 2.4% 1,753,821 +18% 7.9% $58,963,462
ALLIANCEBERNSTEIN L.P. 2.2% 1,558,926 +16% 0.02% $52,411,092
JENNISON ASSOCIATES LLC 2% 1,453,778 +1.8% 0.03% $48,876,017
ROYCE & ASSOCIATES LP 2% 1,418,932 +48% 0.48% $47,704,494
ADAGE CAPITAL PARTNERS GP, L.L.C. 1.9% 1,332,500 +24% 0.07% $44,798,650
Invesco Ltd. 1.7% 1,212,717 -26% 0.01% $40,771,547
PRICE T ROWE ASSOCIATES INC /MD/ 1.7% 1,211,193 +7518% 0% $40,721,000
Balyasny Asset Management L.P. 1.7% 1,201,588 +129% 0.08% $40,397,389
HEALTHCARE OF ONTARIO PENSION PLAN TRUST FUND 1.5% 1,074,200 +49% 0.07% $36,114,604
Granahan Investment Management, LLC 1.5% 1,054,954 -49% 1.5% $35,467,553
THORNBURG INVESTMENT MANAGEMENT INC 1.5% 1,049,351 +28% 0.46% $35,279,181
Qube Research & Technologies Ltd 1.5% 1,039,550 +59% 0.05% $34,949,671
Jefferies Financial Group Inc. 1.4% 1,000,000 -3.8% 0.31% $33,620,000
TWO SIGMA INVESTMENTS, LP 1.3% 934,221 -12% 0.05% $31,408,510
AMERIPRISE FINANCIAL INC 1.2% 873,378 +2.5% 0.01% $29,362,968
Allspring Global Investments Holdings, LLC 1.1% 815,306 +17% 0.04% $24,989,129
TWO SIGMA ADVISERS, LP 1.1% 803,900 -12% 0.05% $27,027,118
SAMLYN CAPITAL, LLC 1.1% 798,227 +64% 0.38% $26,836,391
STATE STREET CORP 1.1% 793,603 +93% 0% $26,680,933
MORGAN STANLEY 1.1% 792,710 -38% 0% $26,650,929
FMR LLC 1.1% 756,386 +391% 0% $25,429,698
JPMORGAN CHASE & CO 1% 744,921 -4.2% 0% $25,044,244

Institutional Holders of Marex Group plc - Ordinary shares, nominal value of $0.001551 per ordinary share (MRX) across Reporting Periods

Period Reported Shares, Excl. Options Value, Excl. Options Value Change Price (Median) Investors
2025 Q4 112,868 $4,329,348 +$1,187,485 $38.36 6
2025 Q3 51,342,780 $1,723,699,241 -$9,291,321 $33.62 189
2025 Q2 50,687,465 $2,000,682,850 +$917,690,271 $39.47 194
2025 Q1 26,660,724 $943,066,551 +$9,297,563 $35.32 121
2024 Q4 26,566,636 $830,150,599 +$299,526,725 $31.17 106
2024 Q3 16,704,620 $395,635,053 +$53,343,474 $23.62 70
2024 Q2 14,739,248 $294,785,918 +$294,785,913 $20.00 59