Jane Street
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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

Fidelity Investments
Fidelity Investments Boston, Massachusetts $1.9T AUM 41.92% 1-Year Est. Return
BlackRock
BlackRock New York $5.72T AUM 30.48% 1-Year Est. Return
VPM
Vanguard Portfolio Management Malvern, Pennsylvania $1.91T AUM
State Street
State Street Boston, Massachusetts $2.9T AUM 29.55% 1-Year Est. Return
VCM
Vanguard Capital Management Malvern, Pennsylvania $4.04T AUM
Dimensional Fund Advisors
Dimensional Fund Advisors Austin, Texas $481B AUM 30.42% 1-Year Est. Return
Fuller & Thaler Asset Management
Fuller & Thaler Asset Management San Mateo, California $29.7B AUM 43.33% 1-Year Est. Return
Mackenzie Financial
Mackenzie Financial Toronto Ontario, Ontario, Canada $83.3B AUM 31.19% 1-Year Est. Return
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.61T AUM 30.72% 1-Year Est. Return
VBA
Van Berkom & Associates Montreal, Quebec, Canada $3.08B AUM 12.07% 1-Year Est. Return

Jane Street's MMS Position: Q1 2026 in Review

Jane Street increased its Maximus (MMS) stake by 8.4% in Q1 2026, buying an estimated $742K and bringing the position to 117,948 shares worth $7.56M. The position accounts for ﹤0.01% of the portfolio, ranked #2903.

Jane Street first reported a position in MMS in Q4 2013 and has held it in 32 quarters since. The position peaked at $28.9M in Q3 2025. 372 funds tracked by Wall St. Rank hold MMS as of Q1 2026.

  • Jane Street held 117,948 shares of Maximus worth $7.56M as of Q1 2026.
  • Jane Street bought 9,137 Maximus shares in Q1 2026, an estimated $742K.
  • Maximus made up ﹤0.01% of Jane Street's portfolio in Q1 2026, its #2903 holding.
  • Jane Street first reported a position in Maximus in Q4 2013 and has held it in 32 quarters since.
  • Jane Street's Maximus position peaked at $28.9M in Q3 2025.
  • 372 funds tracked by Wall St. Rank held Maximus as of Q1 2026.

Based on Jane Street's 13F filing for Q1 2026, filed 12 May 2026.