Jane Street
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Jane Street’s Mercury Insurance MCY Stock Holding History

Jane Street’s Portfolio MCY Stock Details MCY Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2025
Q3 		– Sell
-4,100
Closed -$276K – 11377
2025
Q2 		$276K Sell
4,100
-27,800
-87% -$1.65M ﹤0.01% 8002
2025
Q1 		$1.78M Buy
+31,900
New +$1.72M ﹤0.01% 4553
2022
Q1 		– Sell
-4,400
Closed -$233K – 10729
2021
Q4 		$233K Buy
+4,400
New +$236K ﹤0.01% 8591
2021
Q3 		– Sell
-3,200
Closed -$208K – 10404
2021
Q2 		$208K Sell
3,200
-8,300
-72% -$526K ﹤0.01% 8762
2021
Q1 		$699K Buy
+11,500
New +$658K ﹤0.01% 6174

Other funds holding MCY

BlackRock
BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return
Dimensional Fund Advisors
Dimensional Fund Advisors Austin, Texas $552B AUM 44.19% 1-Year Est. Return
Vanguard Portfolio Management
Vanguard Portfolio Management Malvern, Pennsylvania $2.22T AUM
RCMNY
Rubric Capital Management (New York) New York $10.9B AUM 70.31% 1-Year Est. Return
Vanguard Capital Management
Vanguard Capital Management Malvern, Pennsylvania $4.68T AUM
State Street
State Street Boston, Massachusetts $3.37T AUM 44.26% 1-Year Est. Return
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.88T AUM 44.46% 1-Year Est. Return
American Century Companies
American Century Companies Kansas City, Missouri $226B AUM 44.75% 1-Year Est. Return
Renaissance Technologies
Renaissance Technologies New York $72.6B AUM 54.88% 1-Year Est. Return
Invesco
Invesco Atlanta, Georgia $1.26T AUM 61.52% 1-Year Est. Return

Jane Street's MCY Position: Q2 2026 in Review

Jane Street sold out of Mercury Insurance (MCY) in Q2 2026, closing a stake of 107,700 shares — an estimated $10.6M sold.

Jane Street first reported a position in MCY in Q2 2013 and held it in 28 quarters. The position peaked at $9.49M in Q1 2026. 348 funds tracked by Wall St. Rank hold MCY as of Q2 2026.

  • Jane Street reported no remaining Mercury Insurance position as of Q2 2026 after selling out during the quarter.
  • Jane Street sold 107,700 Mercury Insurance shares in Q2 2026, an estimated $10.6M.
  • Jane Street first reported a position in Mercury Insurance in Q2 2013 and held it in 28 quarters.
  • Jane Street's Mercury Insurance position peaked at $9.49M in Q1 2026.
  • 348 funds tracked by Wall St. Rank held Mercury Insurance as of Q2 2026.

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