Who Owns Marex Group plc Ordinary Shares (MRX)?Hedge Fund & Institutional Holders

$34.87-0.01 (-0.04%)Financial ServicesNASDAQ

Institutional Holders

50

as of Q4 2025

Total Institutional Value

$1.3300073000682707e+237T

% of Float Held

Infinity%

QoQ Change in Holders

+14 / -2

Price History

$22.62$29.05$35.48$41.90$48.33Aug 24Jun 25Mar 26

MRX — Biggest New Institutional Buyers This Quarter

FundActionShares AddedValue Added
JENNISON ASSOCIATES LLCNew Position+1.5M+$56.6M
Ophir Asset Management Pty LtdNew Position+1.1M+$41.7M
Allspring Global Investments Holdings, LLCNew Position+815K+$30.9M
VICTORY CAPITAL MANAGEMENT INCNew Position+670K+$24.0M
PRICE T ROWE ASSOCIATES INC /MD/Increased+337K+$18.3M
Portolan Capital Management, LLCNew Position+419K+$16.1M
Bank of New York Mellon CorpNew Position+436K+$15.0M
GLENMEDE TRUST CO NANew Position+326K+$11.0M
PRINCIPAL FINANCIAL GROUP INCNew Position+240K+$9.2M
Swedbank ABNew Position+213K+$8.2M
RENAISSANCE GROUP LLCNew Position+195K+$7.5M
NEW YORK STATE COMMON RETIREMENT FUNDNew Position+163K+$6.0M
MOODY ALDRICH PARTNERS LLCNew Position+141K+$5.4M
Calamos Advisors LLCNew Position+83K+$3.2M
FEDERATED HERMES, INC.New Position+75K+$2.0M

MRX — Institutions Reducing or Closing Positions

FundActionShares SoldValue Sold
ROYCE & ASSOCIATES LPDecreased-158K-$47.7B
ADAGE CAPITAL PARTNERS GP, L.L.C.Decreased-27K-$44.7B
Qube Research & Technologies LtdDecreased-276K-$34.9B
Jefferies Financial Group Inc.Closed Position-1.0M-$33.6B
TWO SIGMA INVESTMENTS, LPDecreased-31K-$31.4B
AMERIPRISE FINANCIAL INCDecreased-13K-$29.3B
TWO SIGMA ADVISERS, LPDecreased-124K-$27.0B
MORGAN STANLEYDecreased-238K-$26.6B
JPMORGAN CHASE & CODecreased-521K-$25.0B
ROYAL BANK OF CANADADecreased-663K-$22.7B
VOLORIDGE INVESTMENT MANAGEMENT, LLCDecreased-252K-$22.7B
MARSHALL WACE, LLPDecreased-542K-$22.1B
Man Group plcClosed Position-615K-$20.7B
WESTWOOD HOLDINGS GROUP INCDecreased-33K-$20.0B
CITADEL ADVISORS LLCDecreased-438K-$17.8B

Top Institutional Holders(Q4 2025)

#FundSharesValue% of PortfolioType
1Capital International Investors3,488,093$133.0M0.02%Share
2BlackRock, Inc.1,927,455$73.0M0.00%Share
3Grandeur Peak Global Advisors, LLC1,779,743$68.3M9.19%Share
4ALLIANCEBERNSTEIN L.P.1,750,252$67.0M0.02%Share
5WILLIAM BLAIR INVESTMENT MANAGEMENT, LLC1,738,927$66.7M0.19%Share
6LOOMIS SAYLES & CO L P1,651,963$63.0M0.08%Share
7PRICE T ROWE ASSOCIATES INC /MD/1,516,717$58.0M0.01%Share
8BALYASNY ASSET MANAGEMENT L.P.1,396,390$53.0M0.07%Share
9Granahan Investment Management, LLC1,376,993$52.8M2.26%Share
10ADAGE CAPITAL PARTNERS GP, L.L.C.1,305,455$50.0M0.08%Share
11ROYCE & ASSOCIATES LP1,260,709$48.4M0.49%Share
12Invesco Ltd.1,221,615$46.9M0.01%Share
13JENNISON ASSOCIATES LLC1,153,181$44.2M0.03%Share
14THORNBURG INVESTMENT MANAGEMENT INC1,102,143$42.0M0.53%Share
15HEALTHCARE OF ONTARIO PENSION PLAN TRUST FUND1,114,349$42.0M0.07%Share
16Ophir Asset Management Pty Ltd1,087,160$41.7M4.68%Share
17Artisan Partners Limited Partnership904,957$34.0M0.05%Share
18TWO SIGMA INVESTMENTS, LP903,123$34.0M0.05%Share
19STATE STREET CORP839,536$32.0M0.00%Share
20Allspring Global Investments Holdings, LLC814,326$30.9M0.05%Share
21BlackRock, Inc.793,673$30.0M0.00%Share
22AMERIPRISE FINANCIAL INC798,806$30.0M0.01%Share
23FMR LLC777,620$29.0M0.00%Share
24WELLINGTON MANAGEMENT GROUP LLP759,836$29.0M0.01%Share
25Qube Research & Technologies Ltd763,460$29.0M0.03%Share
26BlackRock, Inc.726,886$27.0M0.00%Share
27TWO SIGMA ADVISERS, LP679,600$26.0M0.05%Share
28VICTORY CAPITAL MANAGEMENT INC636,154$24.0M0.01%Share
29GEODE CAPITAL MANAGEMENT, LLC647,526$24.0M0.00%Share
30WESTWOOD HOLDINGS GROUP INC564,236$21.6M0.18%Share
31FMR LLC551,487$21.0M0.00%Share
32Praetorian PR LLC500,000$19.2M9.29%Share
33DEUTSCHE BANK AG\495,871$19.0M0.01%Share
34SAMLYN CAPITAL, LLC475,443$18.2M0.29%Share
35MORGAN STANLEY471,189$18.0M0.00%Share
36Portolan Capital Management, LLC418,745$16.1M0.86%Share
37VOLORIDGE INVESTMENT MANAGEMENT, LLC422,471$16.0M0.06%Share
38SAMLYN CAPITAL, LLC410,847$15.8M0.25%Share
39VANGUARD GROUP INC359,485$13.8M0.00%Share
40SEI INVESTMENTS CO351,583$13.0M0.01%Share
41JENNISON ASSOCIATES LLC322,074$12.4M0.01%Share
42MANUFACTURERS LIFE INSURANCE COMPANY, THE312,493$11.0M0.01%Share
43ALGERT GLOBAL LLC312,351$11.0M0.17%Share
44GLENMEDE TRUST CO NA289,091$11.0M0.05%Share
45LOOMIS SAYLES & CO L P283,540$10.0M0.01%Share
46NORTHERN TRUST CORP267,647$10.0M0.00%Share
47SEVEN GRAND MANAGERS, LLC250,000$9.6M0.73%Share
48PRINCIPAL FINANCIAL GROUP INC237,483$9.1M0.00%Share
49BNP PARIBAS FINANCIAL MARKETS251,535$9.0M0.00%Share
50GLOBEFLEX CAPITAL L P215,606$8.3M1.27%Share

MRX Institutional Ownership History

QuarterHoldersTotal ValueChange
Q4 2025193$1.9B+43
Q3 2025150$1.5T-11
Q2 2025161$1.3T+41
Q1 2025120$1.1T+16
Q4 2024104$1.2T+40
Q3 202464$164.9T+8
Q2 202456$116.0T—

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As of Q4 2025, 50 institutional investors hold MRX (Marex Group plc Ordinary Shares). The largest holder is Capital International Investors with $133.0M in shares. This quarter, 14 institutions opened new positions and 2 closed their positions.

Frequently Asked Questions

How many hedge funds own MRX?

As of Q4 2025, 50 institutional investors report holding MRX (Marex Group plc Ordinary Shares) in their 13F filings.

Who is the largest institutional holder of MRX?

The largest institutional holder of MRX is Capital International Investors with $133.0M in shares.

Is institutional ownership of MRX increasing or decreasing?

This quarter, 14 institutions opened new positions in MRX and 2 closed their positions.