Jane Street’s Marex Group Limited Ordinary Shares MRX Stock Holding History

Jane Street’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	–	Sell	-11,810	Closed	-$650K	–	13406
2026 Q1	$526K	Sell	11,810 -977	-8%	-$38.6K	﹤0.01%	7931
2025 Q4	$491K	Sell	12,787 -47,934	-79%	-$1.63M	﹤0.01%	7723
2025 Q3	$2.04M	Buy	60,721 +20,045	+49%	+$724K	﹤0.01%	4887
2025 Q2	$1.61M	Buy	40,676 +11,216	+38%	+$467K	﹤0.01%	4778
2025 Q1	$1.04M	Buy	+29,460	New	+$1.03M	﹤0.01%	5500
2024 Q4	–	Sell	-24,227	Closed	-$572K	–	10805
2024 Q3	$572K	Buy	+24,227	New	+$541K	﹤0.01%	6959

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 $13.5B AUM 16.58% 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

Ophir Asset Management Sydney, Australia $1.22B AUM 100.03% 1-Year Est. Return

Jane Street's MRX Position: Q2 2026 in Review

Jane Street sold out of Marex Group Limited Ordinary Shares (MRX) in Q2 2026, closing a stake of 11,810 shares — an estimated $650K sold.

Jane Street first reported a position in MRX in Q3 2024 and held it in 6 quarters. The position peaked at $2.04M in Q3 2025. 222 funds tracked by Wall St. Rank hold MRX as of Q2 2026.

Jane Street reported no remaining Marex Group Limited Ordinary Shares position as of Q2 2026 after selling out during the quarter.
Jane Street sold 11,810 Marex Group Limited Ordinary Shares shares in Q2 2026, an estimated $650K.
Jane Street first reported a position in Marex Group Limited Ordinary Shares in Q3 2024 and held it in 6 quarters.
Jane Street's Marex Group Limited Ordinary Shares position peaked at $2.04M in Q3 2025.
222 funds tracked by Wall St. Rank held Marex Group Limited Ordinary Shares as of Q2 2026.

Based on Jane Street's 13F filing for Q2 2026, filed 14 Aug 2026.