Simplex Trading
MRX

Simplex Trading’s Marex Group Limited Ordinary Shares MRX Stock Holding History

Simplex Trading’s Portfolio MRX Stock Details MRX Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2025
Q4 		– Sell
-18,900
Closed -$635K – 10353
2025
Q3 		$635K Buy
18,900
+17,000
+895% +$614K ﹤0.01% 3540
2025
Q2 		$74K Buy
1,900
+200
+12% +$8.33K ﹤0.01% 5529
2025
Q1 		$60K Sell
1,700
-100
-6% -$3.48K ﹤0.01% 5597
2024
Q4 		$56K Buy
1,800
+800
+80% +$22.4K ﹤0.01% 5768
2024
Q3 		$23K Hold
1,000
– – ﹤0.01% 6579
2024
Q2 		$20K Buy
+1,000
New +$19.7K ﹤0.01% 6911

Other funds holding MRX

Fidelity Investments
Fidelity Investments Boston, Massachusetts $2.3T AUM 54.33% 1-Year Est. Return
T. Rowe Price Associates
T. Rowe Price Associates Baltimore, Maryland $999B AUM 46.22% 1-Year Est. Return
BlackRock
BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return
Capital International Investors
Capital International Investors Los Angeles, California $484B AUM 34.9% 1-Year Est. Return
AllianceBernstein
AllianceBernstein Nashville, Tennessee $302B AUM 26.44% 1-Year Est. Return
WA
Wasatch Advisors Salt Lake City, Utah $15.3B AUM 25.06% 1-Year Est. Return
Loomis, Sayles & Company
Loomis, Sayles & Company Boston, Massachusetts $79.8B AUM 16.05% 1-Year Est. Return
SC
Samlyn Capital New York $6.14B AUM 42.05% 1-Year Est. Return
Invesco
Invesco Atlanta, Georgia $1.26T AUM 61.52% 1-Year Est. Return
OAM
Ophir Asset Management Sydney, Australia $1.22B AUM 100.03% 1-Year Est. Return

Simplex Trading's MRX Position: Q2 2026 in Review

Simplex Trading opened a new position in Marex Group Limited Ordinary Shares (MRX) in Q2 2026: 4,989 shares worth $304K. The stake represents ﹤0.01% of the portfolio and ranks #4205 among its holdings. This is a return to the name: Simplex Trading previously reported a position in MRX as recently as Q2 2025.

Simplex Trading first reported a position in MRX in Q2 2024 and has held it in 4 quarters since. 221 funds tracked by Wall St. Rank hold MRX as of Q2 2026.

  • Simplex Trading held 4,989 shares of Marex Group Limited Ordinary Shares worth $304K as of Q2 2026.
  • Marex Group Limited Ordinary Shares was a new Simplex Trading position in Q2 2026.
  • Marex Group Limited Ordinary Shares made up ﹤0.01% of Simplex Trading's portfolio in Q2 2026, its #4205 holding.
  • Simplex Trading first reported a position in Marex Group Limited Ordinary Shares in Q2 2024 and has held it in 4 quarters since.
  • 221 funds tracked by Wall St. Rank held Marex Group Limited Ordinary Shares as of Q2 2026.

Based on Simplex Trading's 13F filing for Q2 2026, filed 12 Aug 2026.