Citadel Advisors’s Marex Group Limited Ordinary Shares MRX Stock Holding History

Citadel Advisors’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	$2.05M	Buy	+33,700	New	+$1.85M	﹤0.01%	6486
2026 Q1	–	Sell	-19,800	Closed	-$760K	–	14469
2025 Q4	$760K	Buy	19,800 +4,400	+29%	+$150K	﹤0.01%	8024
2025 Q3	$518K	Buy	15,400 +3,900	+34%	+$141K	﹤0.01%	9045
2025 Q2	$454K	Buy	11,500 +9,500	+475%	+$395K	﹤0.01%	8869
2025 Q1	$70.6K	Buy	2,000 +1,100	+122%	+$38.3K	﹤0.01%	11900
2024 Q4	$28.1K	Sell	900 -1,500	-63%	-$42K	﹤0.01%	12931
2024 Q3	$56.7K	Sell	2,400 -600	-20%	-$13.4K	﹤0.01%	11771
2024 Q2	$60K	Buy	+3,000	New	+$59K	﹤0.01%	11561

Other funds holding MRX

Fidelity Investments Boston, Massachusetts $2.3T AUM 54.33% 1-Year Est. Return

T. Rowe Price Associates Baltimore, Maryland $999B AUM 46.22% 1-Year Est. Return

BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return

Capital International Investors Los Angeles, California $484B AUM 34.9% 1-Year Est. Return

AllianceBernstein Nashville, Tennessee $302B AUM 26.44% 1-Year Est. Return

Wasatch Advisors Salt Lake City, Utah $15.3B AUM 25.06% 1-Year Est. Return

Loomis, Sayles & Company Boston, Massachusetts $79.8B AUM 16.05% 1-Year Est. Return

Samlyn Capital New York $6.14B AUM 42.05% 1-Year Est. Return

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

Citadel Advisors's MRX Position: Q2 2026 in Review

Citadel Advisors sold out of Marex Group Limited Ordinary Shares (MRX) in Q2 2026, closing a stake of 173,474 shares — an estimated $9.55M sold.

Citadel Advisors first reported a position in MRX in Q2 2024 and held it in 8 quarters. The position peaked at $38.7M in Q2 2025. 221 funds tracked by Wall St. Rank hold MRX as of Q2 2026.

Citadel Advisors reported no remaining Marex Group Limited Ordinary Shares position as of Q2 2026 after selling out during the quarter.
Citadel Advisors sold 173,474 Marex Group Limited Ordinary Shares shares in Q2 2026, an estimated $9.55M.
Citadel Advisors first reported a position in Marex Group Limited Ordinary Shares in Q2 2024 and held it in 8 quarters.
Citadel Advisors's Marex Group Limited Ordinary Shares position peaked at $38.7M in Q2 2025.
221 funds tracked by Wall St. Rank held Marex Group Limited Ordinary Shares as of Q2 2026.

Based on Citadel Advisors's 13F filing for Q2 2026, filed 14 Aug 2026.