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
2026 Q2	$224K	Sell	2,100 -10,000	-83%	-$985K	﹤0.01%	9863
2026 Q1	$1.07M	Buy	12,100 +3,600	+42%	+$322K	﹤0.01%	6357
2025 Q4	$800K	Sell	8,500 -7,600	-47%	-$659K	﹤0.01%	6614
2025 Q3	$1.36M	Sell	16,100 -700	-4%	-$51.7K	﹤0.01%	5667
2025 Q2	$1.13M	Sell	16,800 -178,100	-91%	-$10.6M	﹤0.01%	5377
2025 Q1	$10.9M	Buy	+194,900	New	+$10.5M	﹤0.01%	1883
2023 Q2	–	Sell	-6,500	Closed	-$206K	–	9216
2023 Q1	$206K	Buy	+6,500	New	+$222K	﹤0.01%	7805
2022 Q2	–	Sell	-12,700	Closed	-$699K	–	10401
2022 Q1	$699K	Sell	12,700 -2,200	-15%	-$119K	﹤0.01%	6852
2021 Q4	$791K	Buy	14,900 +10,900	+273%	+$585K	﹤0.01%	6383
2021 Q3	$223K	Sell	4,000 -1,400	-26%	-$83.6K	﹤0.01%	8695
2021 Q2	$351K	Buy	+5,400	New	+$342K	﹤0.01%	7893

Other funds holding MCY

BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return

Dimensional Fund Advisors Austin, Texas $552B AUM 44.19% 1-Year Est. Return

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 Malvern, Pennsylvania $4.68T AUM

State Street Boston, Massachusetts $3.37T AUM 44.26% 1-Year Est. Return

Geode Capital Management Boston, Massachusetts $1.88T AUM 44.46% 1-Year Est. Return

American Century Companies Kansas City, Missouri $226B AUM 44.75% 1-Year Est. Return

Renaissance Technologies New York $72.6B AUM 54.88% 1-Year Est. Return

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.