MF
MRX

Magnetar Financial’s Marex Group Limited Ordinary Shares MRX Stock Holding History

Magnetar Financial’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
2025
Q3 		– Sell
-12,194
Closed -$481K – 1243
2025
Q2 		$481K Buy
+12,194
New +$508K ﹤0.01% 566
2025
Q1 		– Sell
-7,048
Closed -$220K – 983
2024
Q4 		$220K Buy
+7,048
New +$197K 0.01% 537

Other funds holding MRX

BlackRock
BlackRock New York $5.72T AUM 30.48% 1-Year Est. Return
Capital International Investors
Capital International Investors Los Angeles, California $427B AUM 29.17% 1-Year Est. Return
Loomis, Sayles & Company
Loomis, Sayles & Company Boston, Massachusetts $74.3B AUM 24.01% 1-Year Est. Return
GPGA
Grandeur Peak Global Advisors Salt Lake City, Utah $427M AUM 39.14% 1-Year Est. Return
AllianceBernstein
AllianceBernstein Nashville, Tennessee $309B AUM 23.92% 1-Year Est. Return
Jennison Associates
Jennison Associates New York $145B AUM 34.61% 1-Year Est. Return
RA
Royce & Associates New York $10.1B AUM 42.88% 1-Year Est. Return
Adage Capital Partners
Adage Capital Partners Boston, Massachusetts $64.8B AUM 42.7% 1-Year Est. Return
Invesco
Invesco Atlanta, Georgia $1.02T AUM 30.18% 1-Year Est. Return
T. Rowe Price Associates
T. Rowe Price Associates Baltimore, Maryland $865B AUM 30.76% 1-Year Est. Return

Magnetar Financial's MRX Position: Q3 2025 in Review

Magnetar Financial sold out of Marex Group Limited Ordinary Shares (MRX) in Q3 2025, closing a stake of 12,194 shares — an estimated $481K sold.

Magnetar Financial first reported a position in MRX in Q4 2024 and held it in 2 quarters. The position peaked at $481K in Q2 2025. 191 funds tracked by Wall St. Rank hold MRX as of Q3 2025.

  • Magnetar Financial reported no remaining Marex Group Limited Ordinary Shares position as of Q3 2025 after selling out during the quarter.
  • Magnetar Financial sold 12,194 Marex Group Limited Ordinary Shares shares in Q3 2025, an estimated $481K.
  • Magnetar Financial first reported a position in Marex Group Limited Ordinary Shares in Q4 2024 and held it in 2 quarters.
  • Magnetar Financial's Marex Group Limited Ordinary Shares position peaked at $481K in Q2 2025.
  • 191 funds tracked by Wall St. Rank held Marex Group Limited Ordinary Shares as of Q3 2025.

Based on Magnetar Financial's 13F filing for Q3 2025, filed 13 Nov 2025.