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MRX

Marex Group Limited Ordinary Shares
MRX

191 hedge funds and large institutions have $1.96B invested in Marex Group Limited Ordinary Shares in 2025 Q4 according to their latest regulatory filings, with 44 funds opening new positions, 75 increasing their positions, 62 reducing their positions, and 42 closing their positions.

New
Increased
Maintained
Reduced
Closed

200% more funds holding in top 10

Funds holding in top 10: 2 → 6 (+4)

117% more call options, than puts

Call options by funds: $1.65M | Put options by funds: $760K

21% more repeat investments, than reductions

Existing positions increased: 75 | Existing positions reduced: 62

14% more capital invested

Capital invested by funds: $1.72B → $1.96B (+$237M)

5% more first-time investments, than exits

New positions opened: 44 | Existing positions closed: 42

0% more funds holding

Funds holding: 191 → 191 (0)

0.29% less ownership

Funds ownership: 70.56% → 70.27% (-0.29%)

Holders
191
Holders Change
–
Holders Change %
0%
% of All Funds
2.32%
Holding in Top 10
6
Holding in Top 10 Change
+4
Holding in Top 10 Change %
+200%
% of All Funds
0.07%
New
44
Increased
75
Reduced
62
Closed
42
Calls
$1.65M
Puts
$760K
Net Calls
+$889K
Net Calls Change
-$4.07M

Top Buyers

1
William Blair Investment Management
William Blair Investment Management
Illinois
+$46.6M
2
OAM
Ophir Asset Management
Australia
+$37M
3
Victory Capital Management
Victory Capital Management
Texas
+$22.8M
4
Fidelity Investments
Fidelity Investments
Massachusetts
+$19.7M
5
Deutsche Bank
Deutsche Bank
Germany
+$15.5M

Top Sellers

1
JFG
Jefferies Financial Group
New York
-$33.6M
2
Royal Bank of Canada
Royal Bank of Canada
Ontario, Canada
-$22.6M
3
Man Group
Man Group
United Kingdom
-$20.7M
4
Marshall Wace
Marshall Wace
United Kingdom
-$18.4M
5
JP Morgan Chase
JP Morgan Chase
New York
-$17.7M
Name Holding Trade Value Shares
Change 		Change in
Stake
BlackRock
1
BlackRock
New York
$152M +$8.53M +250,854 +7%
Capital International Investors
2
Capital International Investors
California
$134M – – –
Loomis, Sayles & Company
3
Loomis, Sayles & Company
Massachusetts
$74.2M +$5.06M +148,736 +8%
GPGA
4
Grandeur Peak Global Advisors
Utah
$68.3M +$882K +25,922 +1%
AllianceBernstein
5
AllianceBernstein
Tennessee
$67.1M +$6.51M +191,326 +12%
William Blair Investment Management
6
William Blair Investment Management
Illinois
$66.7M +$46.6M +1,370,478 +372%
T. Rowe Price Associates
7
T. Rowe Price Associates
Maryland
$59.4M +$11.5M +337,444 +28%
Jennison Associates
8
Jennison Associates
New York
$56.6M +$731K +21,477 +1%
Balyasny Asset Management
9
Balyasny Asset Management
Illinois
$53.6M +$6.63M +194,802 +16%
GIM
10
Granahan Investment Management
Massachusetts
$52.8M +$11M +322,039 +31%
Fidelity Investments
11
Fidelity Investments
Massachusetts
$51.2M +$19.7M +578,412 +76%
Adage Capital Partners
12
Adage Capital Partners
Massachusetts
$50.1M -$920K -27,045 -2%
Invesco
13
Invesco
Georgia
$49.7M +$2.8M +82,261 +7%
RA
14
Royce & Associates
New York
$48.4M -$5.38M -158,223 -11%
SC
15
Samlyn Capital
New York
$43.8M +$11.7M +343,684 +43%
Healthcare of Ontario Pension Plan (HOOPP) Trust Fund
16
Healthcare of Ontario Pension Plan (HOOPP) Trust Fund
Ontario, Canada
$42.7M +$1.37M +40,149 +4%
TIM
17
Thornburg Investment Management
New Mexico
$42.3M +$1.8M +52,792 +5%
OAM
18
Ophir Asset Management
Australia
$41.7M +$37M +1,087,160 New
Artisan Partners
19
Artisan Partners
Wisconsin
$34.7M +$12.5M +367,954 +69%
Two Sigma Investments
20
Two Sigma Investments
New York
$34.6M -$1.06M -31,098 -3%
Ameriprise
21
Ameriprise
Minnesota
$33M -$454K -13,354 -2%
State Street
22
State Street
Massachusetts
$32.2M +$1.56M +45,933 +6%
Allspring Global Investments
23
Allspring Global Investments
North Carolina
$30.9M -$19.5K -573 -0.1%
Qube Research & Technologies (QRT)
24
Qube Research & Technologies (QRT)
United Kingdom
$29.3M -$9.39M -276,090 -27%
Wellington Management Group
25
Wellington Management Group
Massachusetts
$29.1M +$10.3M +301,763 +66%
1
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MRX Hedge Fund Activity: Q4 2025 in Review

191 of the 8,223 institutional investors tracked by Wall St. Rank reported a position in Marex Group Limited Ordinary Shares (MRX) for Q4 2025, worth a combined $1.96B — up 14% from $1.72B a quarter earlier.

Buyers outnumbered sellers: 44 funds opened new MRX positions and 42 closed out — a net gain of 2 holders — while 75 added to existing stakes and 62 trimmed.

The largest buyer was William Blair Investment Management, adding an estimated $46.6M. The largest seller was Jefferies Financial Group, exiting entirely with an estimated $33.6M sold.

  • 191 institutional investors held Marex Group Limited Ordinary Shares (MRX) as of Q4 2025, unchanged from Q3 2025.
  • Funds reported $1.96B of Marex Group Limited Ordinary Shares stock for Q4 2025, up 14% quarter-over-quarter.
  • 44 funds opened new Marex Group Limited Ordinary Shares positions in Q4 2025 and 42 closed out, a net change of +2 holders.
  • The largest Marex Group Limited Ordinary Shares buyer in Q4 2025 was William Blair Investment Management, an estimated $46.6M added.
  • The largest Marex Group Limited Ordinary Shares seller in Q4 2025 was Jefferies Financial Group, an estimated $33.6M sold.

Based on aggregated 13F filings for Q4 2025.