Jane Street
OS

Jane Street’s OneStream Inc OS Stock Holding History

Jane Street’s Portfolio OS Stock Details OS Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2026
Q1 		– Sell
-22,300
Closed -$410K – 13284
2025
Q4 		$410K Sell
22,300
-5,800
-21% -$111K ﹤0.01% 8144
2025
Q3 		$518K Buy
28,100
+17,600
+168% +$386K ﹤0.01% 7791
2025
Q2 		$297K Buy
+10,500
New +$261K ﹤0.01% 7883

Other funds holding OS

GCL
Glazer Capital LLC New York $4.71B AUM 81.93% 1-Year Est. Return
VPM
Vanguard Portfolio Management Malvern, Pennsylvania $1.91T AUM
Temasek Holdings
Temasek Holdings Singapore $30.5B AUM 13.98% 1-Year Est. Return
Fidelity International
Fidelity International Hamilton, Bermuda $129B AUM 30.83% 1-Year Est. Return
VCM
Vanguard Capital Management Malvern, Pennsylvania $4.04T AUM
AA
AQR Arbitrage Greenwich, Connecticut $6.09B AUM 27.01% 1-Year Est. Return
NAM
Nexpoint Asset Management Dallas, Texas $1.49B AUM 61.08% 1-Year Est. Return
OCAI
O'Connor Alternative Investments New York $1.17B AUM
PAMP
Polar Asset Management Partners Toronto, Ontario, Canada $5.01B AUM 35.27% 1-Year Est. Return
Millennium Management
Millennium Management New York $240B AUM 35.51% 1-Year Est. Return

Jane Street's OS Position: Q1 2026 in Review

Jane Street reduced its OneStream Inc (OS) stake by 56% in Q1 2026, selling an estimated $3.13M and leaving 106,508 shares worth $2.56M. The position accounts for ﹤0.01% of the portfolio, ranked #4635.

Jane Street first reported a position in OS in Q4 2024 and has held it in 5 quarters since. The position peaked at $5.22M in Q2 2025. 180 funds tracked by Wall St. Rank hold OS as of Q1 2026.

  • Jane Street held 106,508 shares of OneStream Inc worth $2.56M as of Q1 2026.
  • Jane Street sold 133,533 OneStream Inc shares in Q1 2026, an estimated $3.13M.
  • OneStream Inc made up ﹤0.01% of Jane Street's portfolio in Q1 2026, its #4635 holding.
  • Jane Street first reported a position in OneStream Inc in Q4 2024 and has held it in 5 quarters since.
  • Jane Street's OneStream Inc position peaked at $5.22M in Q2 2025.
  • 180 funds tracked by Wall St. Rank held OneStream Inc as of Q1 2026.

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