Alyeska Investment Group’s Marex Group Limited Ordinary Shares MRX Stock Holding History

Alyeska Investment Group’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 Q1	$754K	Sell	16,913 -135,462	-89%	-$5.35M	﹤0.01%	582
2025 Q4	$5.85M	Sell	152,375 -200,000	-57%	-$6.8M	0.02%	443
2025 Q3	$11.8M	Buy	352,375 +40,406	+13%	+$1.46M	0.04%	355
2025 Q2	$12.3M	Buy	+311,969	New	+$13M	0.04%	332
2025 Q1	–	Sell	-150,000	Closed	-$4.68M	–	685
2024 Q4	$4.68M	Buy	+150,000	New	+$4.2M	0.02%	403

Other funds holding MRX

BlackRock New York $5.72T AUM 30.48% 1-Year Est. Return

Capital International Investors Los Angeles, California $427B AUM 29.17% 1-Year Est. Return

Fidelity Investments Boston, Massachusetts $1.9T AUM 41.92% 1-Year Est. Return

Loomis, Sayles & Company Boston, Massachusetts $74.3B AUM 24.01% 1-Year Est. Return

T. Rowe Price Associates Baltimore, Maryland $865B AUM 30.76% 1-Year Est. Return

Samlyn Capital New York $5.86B AUM 36.3% 1-Year Est. Return

Two Sigma Investments New York $124B AUM 33.93% 1-Year Est. Return

Jennison Associates New York $145B AUM 34.61% 1-Year Est. Return

William Blair Investment Management Chicago, Illinois $30.3B AUM 33.75% 1-Year Est. Return

AllianceBernstein Nashville, Tennessee $309B AUM 23.92% 1-Year Est. Return

Alyeska Investment Group's MRX Position: Q1 2026 in Review

Alyeska Investment Group reduced its Marex Group Limited Ordinary Shares (MRX) stake by 89% in Q1 2026, selling an estimated $5.35M and leaving 16,913 shares worth $754K. The position accounts for ﹤0.01% of the portfolio, ranked #582.

Alyeska Investment Group first reported a position in MRX in Q4 2024 and has held it in 5 quarters since. The position peaked at $12.3M in Q2 2025. 205 funds tracked by Wall St. Rank hold MRX as of Q1 2026.

Alyeska Investment Group held 16,913 shares of Marex Group Limited Ordinary Shares worth $754K as of Q1 2026.
Alyeska Investment Group sold 135,462 Marex Group Limited Ordinary Shares shares in Q1 2026, an estimated $5.35M.
Marex Group Limited Ordinary Shares made up ﹤0.01% of Alyeska Investment Group's portfolio in Q1 2026, its #582 holding.
Alyeska Investment Group first reported a position in Marex Group Limited Ordinary Shares in Q4 2024 and has held it in 5 quarters since.
Alyeska Investment Group's Marex Group Limited Ordinary Shares position peaked at $12.3M in Q2 2025.
205 funds tracked by Wall St. Rank held Marex Group Limited Ordinary Shares as of Q1 2026.

Based on Alyeska Investment Group's 13F filing for Q1 2026, filed 15 May 2026.