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 Q3	$7.7M	Sell	110,441 -14,667	-12%	-$1.01M	0.02%	496
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

Fidelity Investments Boston, Massachusetts $2.32T AUM 44.66% 1-Year Est. Return

Wasatch Advisors Salt Lake City, Utah $13.5B AUM 16.58% 1-Year Est. Return

Victory Capital Management San Antonio, Texas $179B AUM 29.92% 1-Year Est. Return

Geode Capital Management Boston, Massachusetts $1.92T AUM 36.1% 1-Year Est. Return

Royce & Associates New York $11B AUM 39.4% 1-Year Est. Return

William Blair Investment Management Chicago, Illinois $30.8B AUM 33.92% 1-Year Est. Return

Allspring Global Investments Charlotte, North Carolina $64.1B AUM 28.9% 1-Year Est. Return

Nuveen Charlotte, North Carolina $420B AUM 34.97% 1-Year Est. Return

Russell Investments Group London, United Kingdom $114B AUM 33.83% 1-Year Est. Return

WCM Investment Management Laguna Beach, California $59.1B AUM 41.96% 1-Year Est. Return

Calamos Advisors's MRX Position: Q3 2026 in Review

Calamos Advisors reduced its Marex Group Limited Ordinary Shares (MRX) stake by 12% in Q3 2026, selling an estimated $1.01M and leaving 110,441 shares worth $7.7M. The position accounts for 0.02% of the portfolio, ranked #496.

Calamos Advisors first reported a position in MRX in Q4 2024 and has held it in 7 quarters since. 121 funds tracked by Wall St. Rank hold MRX as of Q3 2026.

Calamos Advisors held 110,441 shares of Marex Group Limited Ordinary Shares worth $7.7M as of Q3 2026.
Calamos Advisors sold 14,667 Marex Group Limited Ordinary Shares shares in Q3 2026, an estimated $1.01M.
Marex Group Limited Ordinary Shares made up 0.02% of Calamos Advisors's portfolio in Q3 2026, its #496 holding.
Calamos Advisors first reported a position in Marex Group Limited Ordinary Shares in Q4 2024 and has held it in 7 quarters since.
121 funds tracked by Wall St. Rank held Marex Group Limited Ordinary Shares as of Q3 2026.

Based on Calamos Advisors's 13F filing for Q3 2026, filed 2 Nov 2026.