Marex MRX Institutional Ownership

NASDAQ MRX

$74.39 +1.12 (+1.53%)

At close: Sep 18, 2026 · 4:00 PM EDT

Institutions by Trading Activity

213 Institutions

Increased 140 65.7%

Unchanged 20 9.4%

Reduced 53 24.9%

Ownership Statistics

13F · as of 30 Jun, 2026

Institutional Ownership

79.41%

▲+5.80 pp QoQ

Shares Held by Institutions

56.66Mn

of 71.35Mn outstanding

▲+20.38% QoQ

Shares Outstanding

71.35Mn

14.69Mn held outside 13F filers

Institutional Investors

213

filed 13F for Jun 2026

▲+8 vs prior quarter

Net Shares Added (QoQ)

+9.59Mn

accumulated since last quarter

Value of Holdings

$4.22Bn

reported market value

Shares Owned by Institutions

Shares held % of outstanding

Latest —

Average ownership —

Peak ownership —

Shares Purchased/Sold by Institutions

Accumulated Distributed

Latest quarter —

Net over range —

Accumulating quarters —

Ownership Summary

Quarter ending 30 Jun, 2026

Marex Group Ltd (NASDAQ:MRX) has 213 institutional investors that have filed 13F reports for the period ending June 2026.

Their combined ownership stood at 79.4% of outstanding shares in June 2026, up from 73.6% in March 2026.
Their total shares held in MRX increased 20.38% from the prior quarter, while the number of investors in Marex increased 10.94% year over year.
Among the 213 funds, 140 bought more Marex shares, 53 sold down, and 20 held their ground.
Altogether, these fund groups held 56.66Mn shares in MRX by June 2026, up by 9.59Mn shares quarter on quarter, and up 5.59Mn shares year over year.
FMR LLC is the top holder of Marex as of June 30, 2026, with 5.37Mn shares representing 7.52% of outstanding stock.
The largest buyers of Marex for the quarter ending June 2026 were PRICE T ROWE ASSOCIATES INC /MD/ (3.02Mn), FMR LLC (1.89Mn), WASATCH ADVISORS LP (1.51Mn), ALLIANCEBERNSTEIN L.P. (870.31K), Morgan Stanley (692.42K).
The largest sellers of Marex for the quarter ending June 2026 were JENNISON ASSOCIATES LLC (1.0Mn), WILLIAM BLAIR INVESTMENT MANAGEMENT, LLC (556.98K), Westwood Holdings Group Inc (532.16K), TWO SIGMA INVESTMENTS, LP (346.12K), LOOMIS SAYLES & CO L P (291.92K).
Business Quant data shows the 10 biggest positions in Marex as of June 2026 are held by FMR LLC (5.37Mn), PRICE T ROWE ASSOCIATES INC /MD/ (4.92Mn), BlackRock, Inc. (4.59Mn), Capital International Investors (3.26Mn), ALLIANCEBERNSTEIN L.P. (2.6Mn), WASATCH ADVISORS LP (1.68Mn), LOOMIS SAYLES & CO L P (1.63Mn), SAMLYN CAPITAL, LLC (1.48Mn), Invesco Ltd. (1.4Mn), Ophir Asset Management Pty Ltd (1.39Mn).

Form 13F Holdings

213 Institutional Holders

Report period 30 Jun, 2026

Total shares held 56.66Mn

Of outstanding 79.41%

#	Institution	CIK	Shares Held	% of Outstanding	Change (QoQ)	Change (%)	Value (USD)
1	FMR LLC	0000315066	5,368,485	7.52%	▲1,886,574	+54.18%	$327.21Mn
2	PRICE T ROWE ASSOCIATES INC /MD/	0000080255	4,923,341	6.90%	▲3,017,312	+158.30%	$300.08K
3	BlackRock, Inc.	0002012383	4,594,149	6.44%	▲204,824	+4.67%	$280.01Mn
4	Capital International Investors	0001562230	3,264,364	4.57%	▼223,729	-6.41%	$198.96Mn
5	ALLIANCEBERNSTEIN L.P.	0001109448	2,600,436	3.64%	▲870,311	+50.30%	$115.93Mn
6	WASATCH ADVISORS LP	0000814133	1,683,061	2.36%	▲1,511,952	+883.62%	$102.58Mn
7	LOOMIS SAYLES & CO L P	0000312348	1,626,702	2.28%	▼291,920	-15.22%	$99.15Mn
8	SAMLYN CAPITAL, LLC	0001421097	1,483,250	2.08%	▼205,627	-12.18%	$90.40Mn
9	Invesco Ltd.	0000914208	1,404,552	1.97%	▲31,784	+2.32%	$85.61Mn
10	Ophir Asset Management Pty Ltd	0001844640	1,391,511	1.95%	▲144,965	+11.63%	$84.81Mn
11	TWO SIGMA INVESTMENTS, LP	0001179392	1,335,436	1.87%	▼346,124	-20.58%	$81.39Mn
12	VICTORY CAPITAL MANAGEMENT INC	0001040188	1,291,337	1.81%	▼23,479	-1.79%	$78.71Mn
13	Granahan Investment Management, LLC	0001026710	1,254,283	1.76%	▲30,533	+2.50%	$76.45Mn
14	Morgan Stanley	0000895421	1,169,722	1.64%	▲692,424	+145.07%	$71.29Mn
15	ROYCE & ASSOCIATES LP	0000906304	1,111,339	1.56%	▼141,451	-11.29%	$67.68Mn
16	HEALTHCARE OF ONTARIO PENSION PLAN TRUST FUND	0001535845	1,043,286	1.46%	▲314,286	+43.11%	$61.49Mn
17	State Street Corp	0000093751	1,026,731	1.44%	▲153,270	+17.55%	$62.58Mn
18	WILLIAM BLAIR INVESTMENT MANAGEMENT, LLC	0001644956	1,009,199	1.41%	▼556,982	-35.56%	$61.51Mn
19	Ameriprise Financial Inc	0000820027	904,162	1.27%	▼50,080	-5.25%	$55.11Mn
20	GEODE CAPITAL MANAGEMENT, LLC	0001214717	897,253	1.26%	▲170,759	+23.50%	$52.88Mn

Showing 1 to 20 of 213 holders