Citadel Advisors
OS

Citadel Advisors’s OneStream Inc OS Stock Holding History

Citadel Advisors’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 		$338K Sell
14,100
-6,100
-30% -$143K ﹤0.01% 10195
2025
Q4 		$371K Buy
20,200
+400
+2% +$7.63K ﹤0.01% 9693
2025
Q3 		$365K Sell
19,800
-10,600
-35% -$233K ﹤0.01% 9887
2025
Q2 		$860K Buy
30,400
+11,900
+64% +$296K ﹤0.01% 7428
2025
Q1 		$395K Buy
18,500
+4,400
+31% +$113K ﹤0.01% 8994
2024
Q4 		$402K Buy
14,100
+10,800
+327% +$331K ﹤0.01% 9036
2024
Q3 		$112K Buy
+3,300
New +$97.3K ﹤0.01% 10969

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

Citadel Advisors's OS Position: Q1 2026 in Review

Citadel Advisors reduced its OneStream Inc (OS) stake by 17% in Q1 2026, selling an estimated $8.96M and leaving 1,890,118 shares worth $45.4M. The position accounts for 0.01% of the portfolio, ranked #1448.

Citadel Advisors first reported a position in OS in Q3 2024 and has held it in 7 quarters since. 180 funds tracked by Wall St. Rank hold OS as of Q1 2026.

  • Citadel Advisors held 1,890,118 shares of OneStream Inc worth $45.4M as of Q1 2026.
  • Citadel Advisors sold 382,193 OneStream Inc shares in Q1 2026, an estimated $8.96M.
  • OneStream Inc made up 0.01% of Citadel Advisors's portfolio in Q1 2026, its #1448 holding.
  • Citadel Advisors first reported a position in OneStream Inc in Q3 2024 and has held it in 7 quarters since.
  • 180 funds tracked by Wall St. Rank held OneStream Inc as of Q1 2026.

Based on Citadel Advisors's 13F filing for Q1 2026, filed 15 May 2026.