Jane Street
MRX

Jane Street’s Marex Group Limited Ordinary Shares MRX Stock Holding History

Jane Street’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 		$1.26M Buy
20,700
+15,700
+314% +$864K ﹤0.01% 6049
2026
Q1 		$223K Buy
+5,000
New +$197K ﹤0.01% 9893
2025
Q2 		– Sell
-11,200
Closed -$396K – 11155
2025
Q1 		$396K Buy
+11,200
New +$390K ﹤0.01% 7297
2024
Q3 		– Sell
-11,000
Closed -$220K – 10568
2024
Q2 		$220K Buy
+11,000
New +$216K ﹤0.01% 8253

Other funds holding MRX

Fidelity Investments
Fidelity Investments Boston, Massachusetts $2.3T AUM 54.33% 1-Year Est. Return
T. Rowe Price Associates
T. Rowe Price Associates Baltimore, Maryland $999B AUM 46.22% 1-Year Est. Return
BlackRock
BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return
Capital International Investors
Capital International Investors Los Angeles, California $484B AUM 34.9% 1-Year Est. Return
AllianceBernstein
AllianceBernstein Nashville, Tennessee $302B AUM 26.44% 1-Year Est. Return
WA
Wasatch Advisors Salt Lake City, Utah $15.3B AUM 25.06% 1-Year Est. Return
Loomis, Sayles & Company
Loomis, Sayles & Company Boston, Massachusetts $79.8B AUM 16.05% 1-Year Est. Return
SC
Samlyn Capital New York $6.14B AUM 42.05% 1-Year Est. Return
Invesco
Invesco Atlanta, Georgia $1.26T AUM 61.52% 1-Year Est. Return
OAM
Ophir Asset Management Sydney, Australia $1.22B AUM 100.03% 1-Year Est. Return

Jane Street's MRX Position: Q2 2026 in Review

Jane Street sold out of Marex Group Limited Ordinary Shares (MRX) in Q2 2026, closing a stake of 11,810 shares — an estimated $650K sold.

Jane Street first reported a position in MRX in Q3 2024 and held it in 6 quarters. The position peaked at $2.04M in Q3 2025. 221 funds tracked by Wall St. Rank hold MRX as of Q2 2026.

  • Jane Street reported no remaining Marex Group Limited Ordinary Shares position as of Q2 2026 after selling out during the quarter.
  • Jane Street sold 11,810 Marex Group Limited Ordinary Shares shares in Q2 2026, an estimated $650K.
  • Jane Street first reported a position in Marex Group Limited Ordinary Shares in Q3 2024 and held it in 6 quarters.
  • Jane Street's Marex Group Limited Ordinary Shares position peaked at $2.04M in Q3 2025.
  • 221 funds tracked by Wall St. Rank held Marex Group Limited Ordinary Shares as of Q2 2026.

Based on Jane Street's 13F filing for Q2 2026, filed 14 Aug 2026.