JO
MRX

John Overdeck’s Marex Group Limited Ordinary Shares MRX Stock Holding History

John Overdeck’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
2026
Q2 		$81.4M Sell
1,335,436
-346,124
-21% -$19M 0.06% 377
2026
Q1 		$75M Buy
1,681,560
+778,437
+86% +$30.7M 0.06% 365
2025
Q4 		$34.6M Sell
903,123
-31,098
-3% -$1.06M 0.05% 476
2025
Q3 		$31.4M Sell
934,221
-124,898
-12% -$4.51M 0.05% 467
2025
Q2 		$41.8M Buy
1,059,119
+403,527
+62% +$16.8M 0.07% 333
2025
Q1 		$23.2M Buy
655,592
+172,097
+36% +$5.99M 0.05% 434
2024
Q4 		$15.1M Buy
483,495
+354,782
+276% +$9.93M 0.03% 583
2024
Q3 		$3.04M Sell
128,713
-11,370
-8% -$254K 0.01% 1386
2024
Q2 		$2.8M Buy
+140,083
New +$2.75M 0.01% 1327

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

John Overdeck's MRX Position: Q2 2026 in Review

John Overdeck reduced its Marex Group Limited Ordinary Shares (MRX) stake by 21% in Q2 2026, selling an estimated $19M and leaving 1,335,436 shares worth $81.4M. The position accounts for 0.06% of the portfolio, ranked #377.

John Overdeck first reported a position in MRX in Q2 2024 and has held it in 9 quarters since. 219 funds tracked by Wall St. Rank hold MRX as of Q2 2026.

  • John Overdeck held 1,335,436 shares of Marex Group Limited Ordinary Shares worth $81.4M as of Q2 2026.
  • John Overdeck sold 346,124 Marex Group Limited Ordinary Shares shares in Q2 2026, an estimated $19M.
  • Marex Group Limited Ordinary Shares made up 0.06% of John Overdeck's portfolio in Q2 2026, its #377 holding.
  • John Overdeck first reported a position in Marex Group Limited Ordinary Shares in Q2 2024 and has held it in 9 quarters since.
  • 219 funds tracked by Wall St. Rank held Marex Group Limited Ordinary Shares as of Q2 2026.

Based on Two Sigma Investments's 13F filing for Q2 2026, filed 14 Aug 2026.