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

Calamos 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	$7.63M	Buy	125,108 +14,994	+14%	+$825K	0.03%	474
2026 Q1	$4.91M	Buy	110,114 +26,908	+32%	+$1.06M	0.02%	559
2025 Q4	$3.19M	Buy	+83,206	New	+$2.83M	0.01%	580
2025 Q3	–	Sell	-38,075	Closed	-$1.5M	–	1018
2025 Q2	$1.5M	Sell	38,075 -46,461	-55%	-$1.93M	0.01%	656
2025 Q1	$2.99M	Buy	84,536 +8,101	+11%	+$282K	0.01%	559
2024 Q4	$2.38M	Buy	+76,435	New	+$2.14M	0.01%	592

Other funds holding MRX

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

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

Victory Capital Management San Antonio, Texas $178B AUM 37.23% 1-Year Est. Return

State Street Boston, Massachusetts $3.37T AUM 44.26% 1-Year Est. Return

Jennison Associates New York $167B AUM 44.17% 1-Year Est. Return

New York State Common Retirement Fund Albany, New York $79.3B AUM 43.63% 1-Year Est. Return

Walleye Capital New York $28B AUM 44.22% 1-Year Est. Return

Bank of New York Mellon New York $609B AUM 40.19% 1-Year Est. Return

Swedbank Stockholm, Sweden $116B AUM 46.87% 1-Year Est. Return

Russell Investments Group London, United Kingdom $114B AUM 41.71% 1-Year Est. Return

Calamos Advisors's MRX Position: Q2 2026 in Review

Calamos Advisors increased its Marex Group Limited Ordinary Shares (MRX) stake by 14% in Q2 2026, buying an estimated $825K and bringing the position to 125,108 shares worth $7.63M. The position accounts for 0.03% of the portfolio, ranked #474.

Calamos Advisors first reported a position in MRX in Q4 2024 and has held it in 6 quarters since. 79 funds tracked by Wall St. Rank hold MRX as of Q2 2026.

Calamos Advisors held 125,108 shares of Marex Group Limited Ordinary Shares worth $7.63M as of Q2 2026.
Calamos Advisors bought 14,994 Marex Group Limited Ordinary Shares shares in Q2 2026, an estimated $825K.
Marex Group Limited Ordinary Shares made up 0.03% of Calamos Advisors's portfolio in Q2 2026, its #474 holding.
Calamos Advisors first reported a position in Marex Group Limited Ordinary Shares in Q4 2024 and has held it in 6 quarters since.
79 funds tracked by Wall St. Rank held Marex Group Limited Ordinary Shares as of Q2 2026.

Based on Calamos Advisors's 13F filing for Q2 2026, filed 31 Jul 2026.