Jane Street’s Maximus MMS Stock Holding History

Jane Street’s Portfolio MMS Stock Details MMS Fund Activity

Bought

Maintained

Sold

Quarter	Market Value	Status	Shares	Change in Stake	Trade Value	Portfolio Weight	Portfolio Position
2026 Q1	–	Sell	-3,100	Closed	-$268K	–	12461
2025 Q4	$268K	Buy	+3,100	New	+$265K	﹤0.01%	9089

Other funds holding MMS

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

Fidelity Investments Boston, Massachusetts $2.3T AUM 54.33% 1-Year Est. Return

Vanguard Portfolio Management Malvern, Pennsylvania $2.22T AUM

Fuller & Thaler Asset Management San Mateo, California $36.7B AUM 74.15% 1-Year Est. Return

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

Vanguard Capital Management Malvern, Pennsylvania $4.68T AUM

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

Reinhart Partners Mequon, Wisconsin $4.38B AUM 55.55% 1-Year Est. Return

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

VBA

Van Berkom & Associates Montreal, Quebec, Canada $3.1B AUM 12.88% 1-Year Est. Return

Jane Street's MMS Position: Q2 2026 in Review

Jane Street sold out of Maximus (MMS) in Q2 2026, closing a stake of 117,948 shares — an estimated $7.56M sold.

Jane Street first reported a position in MMS in Q4 2013 and held it in 32 quarters. The position peaked at $28.9M in Q3 2025. 352 funds tracked by Wall St. Rank hold MMS as of Q2 2026.

Jane Street reported no remaining Maximus position as of Q2 2026 after selling out during the quarter.
Jane Street sold 117,948 Maximus shares in Q2 2026, an estimated $7.56M.
Jane Street first reported a position in Maximus in Q4 2013 and held it in 32 quarters.
Jane Street's Maximus position peaked at $28.9M in Q3 2025.
352 funds tracked by Wall St. Rank held Maximus as of Q2 2026.

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