Vanguard Group
OS

Vanguard Group’s OneStream Inc OS Stock Holding History

Vanguard Group’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
2025
Q4 		$158M Sell
8,580,460
-25,379
-0.3% -$484K ﹤0.01% 1663
2025
Q3 		$159M Buy
8,605,839
+786,408
+10% +$17.3M ﹤0.01% 1666
2025
Q2 		$221M Buy
7,819,431
+4,227,978
+118% +$105M ﹤0.01% 1462
2025
Q1 		$76.6M Sell
3,591,453
-155,125
-4% -$3.98M ﹤0.01% 1906
2024
Q4 		$107M Buy
3,746,578
+1,268,733
+51% +$38.9M ﹤0.01% 1841
2024
Q3 		$84M Buy
+2,477,845
New +$73M ﹤0.01% 1950

Other funds holding OS

T. Rowe Price Investment Management
T. Rowe Price Investment Management Baltimore, Maryland $153B AUM 38.14% 1-Year Est. Return
Norges Bank
Norges Bank Oslo, Norway $1T AUM
Kayne Anderson Rudnick Investment Management
Kayne Anderson Rudnick Investment Management Los Angeles, California $32.2B AUM 10.98% 1-Year Est. Return
Temasek Holdings
Temasek Holdings Singapore $37.3B AUM 12.6% 1-Year Est. Return
DPCM
Darlington Partners Capital Management Greenbrae, California $2.27B AUM 18.22% 1-Year Est. Return
Brown Advisory
Brown Advisory Baltimore, Maryland $64.6B AUM 18.98% 1-Year Est. Return
Marshall Wace
Marshall Wace London, United Kingdom $127B AUM 46.06% 1-Year Est. Return
TCM
TimesSquare Capital Management New York $6.8B AUM 45.85% 1-Year Est. Return
Fuller & Thaler Asset Management
Fuller & Thaler Asset Management San Mateo, California $36.7B AUM 74.15% 1-Year Est. Return
Citadel Advisors
Citadel Advisors Miami, Florida $875B AUM 40.91% 1-Year Est. Return

Vanguard Group's OS Position: Q4 2025 in Review

Vanguard Group reduced its OneStream Inc (OS) stake by 0.29% in Q4 2025, selling an estimated $484K and leaving 8,580,460 shares worth $158M. The position accounts for ﹤0.01% of the portfolio, ranked #1663.

Vanguard Group first reported a position in OS in Q3 2024 and has held it in 6 quarters since. The position peaked at $221M in Q2 2025. 183 funds tracked by Wall St. Rank hold OS as of Q4 2025.

  • Vanguard Group held 8,580,460 shares of OneStream Inc worth $158M as of Q4 2025.
  • Vanguard Group sold 25,379 OneStream Inc shares in Q4 2025, an estimated $484K.
  • OneStream Inc made up ﹤0.01% of Vanguard Group's portfolio in Q4 2025, its #1663 holding.
  • Vanguard Group first reported a position in OneStream Inc in Q3 2024 and has held it in 6 quarters since.
  • Vanguard Group's OneStream Inc position peaked at $221M in Q2 2025.
  • 183 funds tracked by Wall St. Rank held OneStream Inc as of Q4 2025.

Based on Vanguard Group's 13F filing for Q4 2025, filed 29 Jan 2026.