Robeco Institutional Asset Management
MRX

Robeco Institutional Asset Management’s Marex Group Limited Ordinary Shares MRX Stock Holding History

Robeco Institutional Asset Management’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
Q4 		– Sell
-127,728
Closed -$4.29M – 892
2025
Q3 		$4.29M Buy
127,728
+31,974
+33% +$1.15M 0.01% 583
2025
Q2 		$3.78M Buy
+95,754
New +$3.99M 0.01% 600

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
William Blair Investment Management
William Blair Investment Management Chicago, Illinois $30.3B AUM 33.75% 1-Year Est. Return
T. Rowe Price Associates
T. Rowe Price Associates Baltimore, Maryland $865B AUM 30.76% 1-Year Est. Return
Jennison Associates
Jennison Associates New York $145B AUM 34.61% 1-Year Est. Return
Balyasny Asset Management
Balyasny Asset Management Chicago, Illinois $77.1B AUM 42.89% 1-Year Est. Return
GIM
Granahan Investment Management Waltham, Massachusetts $2.07B AUM 56.45% 1-Year Est. Return

Robeco Institutional Asset Management's MRX Position: Q4 2025 in Review

Robeco Institutional Asset Management sold out of Marex Group Limited Ordinary Shares (MRX) in Q4 2025, closing a stake of 127,728 shares — an estimated $4.29M sold.

Robeco Institutional Asset Management first reported a position in MRX in Q2 2025 and held it in 2 quarters. The position peaked at $4.29M in Q3 2025. 191 funds tracked by Wall St. Rank hold MRX as of Q4 2025.

  • Robeco Institutional Asset Management reported no remaining Marex Group Limited Ordinary Shares position as of Q4 2025 after selling out during the quarter.
  • Robeco Institutional Asset Management sold 127,728 Marex Group Limited Ordinary Shares shares in Q4 2025, an estimated $4.29M.
  • Robeco Institutional Asset Management first reported a position in Marex Group Limited Ordinary Shares in Q2 2025 and held it in 2 quarters.
  • Robeco Institutional Asset Management's Marex Group Limited Ordinary Shares position peaked at $4.29M in Q3 2025.
  • 191 funds tracked by Wall St. Rank held Marex Group Limited Ordinary Shares as of Q4 2025.

Based on Robeco Institutional Asset Management's 13F filing for Q4 2025, filed 23 Jan 2026.