Group One Trading
OS

Group One Trading’s OneStream Inc OS Stock Holding History

Group One Trading’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 		$470K Sell
19,600
-11,600
-37% -$272K ﹤0.01% 3406
2025
Q4 		$573K Sell
31,200
-28,100
-47% -$536K ﹤0.01% 3371
2025
Q3 		$1.09M Sell
59,300
-615,900
-91% -$13.5M ﹤0.01% 2934
2025
Q2 		$19.1M Buy
675,200
+401,000
+146% +$9.99M 0.04% 453
2025
Q1 		$5.85M Buy
274,200
+259,200
+1,728% +$6.65M 0.02% 948
2024
Q4 		$428K Sell
15,000
-15,000
-50% -$460K ﹤0.01% 3309
2024
Q3 		$1.02M Buy
+30,000
New +$884K ﹤0.01% 2277

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

Group One Trading's OS Position: Q1 2026 in Review

Group One Trading sold out of OneStream Inc (OS) in Q1 2026, closing a stake of 7,075 shares — an estimated $166K sold.

Group One Trading first reported a position in OS in Q3 2025 and held it in 2 quarters. The position peaked at $271K in Q3 2025. 180 funds tracked by Wall St. Rank hold OS as of Q1 2026.

  • Group One Trading reported no remaining OneStream Inc position as of Q1 2026 after selling out during the quarter.
  • Group One Trading sold 7,075 OneStream Inc shares in Q1 2026, an estimated $166K.
  • Group One Trading first reported a position in OneStream Inc in Q3 2025 and held it in 2 quarters.
  • Group One Trading's OneStream Inc position peaked at $271K in Q3 2025.
  • 180 funds tracked by Wall St. Rank held OneStream Inc as of Q1 2026.

Based on Group One Trading's 13F filing for Q1 2026, filed 13 May 2026.