$MRX

$70.73 +$0.77 (1.1%) Close

$MRX Overview Financial Statements SEC Filings Executives News Red Flags Capital Raising Ownership Insider Transactions Congressional Trades

Ownership

13F as of Q2 2026 · 72.9M shares outstanding

Who owns MRX?

By type of holder

Institutions 77.5% Insiders 0.0% Everyone else 22.5%

Concentration Top 10 holders own 37.7%

FMR LLC 7.4% · Price T Rowe Associates Inc /MD/ 6.8%

Institutional ownership

77.5%

+5.5 pts vs last qtr

Institutional holders

213

+8 vs last qtr

Net shares bought

+4.0M

by institutions in Q2 2026

New / sold out

52 / 44

positions opened vs closed

How is ownership changing?

Institutions, last 8 quarters

Biggest buyers in Q2 2026

Price T Rowe Associates Inc /MD/ +3.0M
FMR LLC +1.9M

Biggest sellers in Q2 2026

Grandeur Peak Global Advisors, LLC SOLD OUT −1.3M
Artisan Partners Limited Partnership SOLD OUT −1.2M

Who is planning to sell?

Notices of proposed sale, last 12 months

$31.3M

13 notices from 7 people

Shares covered

594.1K

0.81% of the company

Arranged in advance

98%

of the value is under a 10b5-1 plan

Under a 10b5-1 plan No plan

Largest proposed sellers

Paolo Roberto Tonucci Officer 10b5-1 $11.6M
Simon Van Den Born Officer 10b5-1 $7.59M

Every notice on Red Flags →

A Form 144 is notice of a planned sale, not the sale itself. What insiders actually sold is on Insider Transactions.

Is your stake being diluted?

There are not yet two fiscal years of reported share counts for Marex Group Ltd.

How patient are the owners?

Institutional shares by how long they've been held

5+ years0% 3–5 years0% 1–3 years81% Under 1 year19%

Quarterly turnover

24.4%

of institutional shares changed hands

Top 10 managers, median time held

1 year

Super Investors

Investment managers reporting MRX on Form 13F

Holder	Shares	% of company	Change vs last qtr	Held since	% of their book
F FMR LLC	5.4M	7.36%	+1.9M (+54.2%)	2025	0.0%
Shares held by quarter Peak holding5.4M (Q2'26) Change over 8 quarters+5.4M Share of the company7.360% FMR LLC's full portfolio →
PT Price T Rowe Associates Inc /MD/	4.9M	6.75%	+3.0M (+158.3%)	2025	0.0%
Shares held by quarter Peak holding4.9M (Q2'26) Change over 8 quarters+4.9M Share of the company6.750% Price T Rowe Associates Inc /MD/'s full portfolio →

FMR LLC

5.4M

% of company

7.36%

Change vs last qtr

+1.9M (+54.2%)

Held since

2025

Price T Rowe Associates Inc /MD/

4.9M

% of company

6.75%

Change vs last qtr

+3.0M (+158.3%)

Held since

2025

28 more super investors behind a free account

See every manager holding Marex Group Ltd, how their position has changed, and how long they've held it.

Institutional Funds

Mutual funds and ETFs reporting MRX on Form N-PORT; together they hold 9.4% of the company

Fund	Position value	Shares	% of company	% of the fund	As of
ID Invesco Discovery Fund AIM Counselor Series Trust (Invesco Counselor Series Trust)	$61.2M	1.2M	1.59%	0.78%	May 31, 2026
SC Small Cap Value Fund American Century Capital Portfolios, Inc.	$50.2M	1.1M	1.54%	1.58%	March 31, 2026

Invesco Discovery Fund

AIM Counselor Series Trust (Invesco Counselor Series Trust)

Position value

$61.2M

% of company

1.59%

% of the fund

0.78%

As of

May 31, 2026

Small Cap Value Fund

American Century Capital Portfolios, Inc.

Position value

$50.2M

% of company

1.54%

% of the fund

1.58%

As of

March 31, 2026

23 more funds behind a free account

See every fund holding Marex Group Ltd and how much of the fund the position is.

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