OnestreamOS
13F holders, Q4 2025 (December 31)184holders −1
38new positions
38sold out
6famous investors
$18.38avg. 13F price*
At the end of Q4 2025, 184 institutions reported holding Onestream Inc. (OS) in their 13F filings, down 1 from Q3 2025. 38 opened new positions and 38 sold out. The largest holders were Vanguard Group Inc. ($157.7M), T. Rowe Price Investment Management, Inc. ($143.0M) and Norges Bank ($109.8M). 6 famous investors held it, including George Soros (0.1% of Soros Fund Management's portfolio), Ken Griffin (0.0% of Citadel Advisors's portfolio) and Paul Tudor Jones (0.0% of Tudor Investment Corporation's portfolio).
- Company
- Onestream Inc.
- CUSIP
- 68278B107
- Latest filing quarter
- Q1 2026
History
Number of 13F holders
Total Exit/New Position Q3 2025 → Q4 2025
| Institutions | Total Value | |
|---|---|---|
| New Positions | 38 | $133.4M |
| Exits | 38 | $72.3M |
All 13F filers, Q3 2025 → Q4 2025: 11,661,914 shares bought and 14,116,567 shares sold, net −2,454,653 shares. Counts holders who added, trimmed, opened or closed a position; split-adjusted.
Ownership 184 holders
| Vanguard Group Inc. | 0.00% | Reduce -0.3% | 8,580,460 | $157.7M |
| T. Rowe Price Investment Management, Inc. | 0.09% | Reduce -17.1% | 7,779,413 | $143.0M |
| Norges Bank | 0.01% | — | 5,974,029 | $109.8M |
| Kayne Anderson Rudnick Investment Management LLC | 0.24% | Reduce -21.6% | 4,867,636 | $89.5M |
| Temasek Holdings (Private) Ltd | 0.25% | No change | 4,266,714 | $78.4M |
| Darlington Partners Capital Management, LP | 2.82% | No change | 3,839,405 | $70.6M |
| Brown Advisory Inc. | 0.09% | Reduce -7.4% | 3,376,401 | $62.1M |
| Marshall Wace, LLP | 0.05% | Add +12.3% | 2,786,155 | $51.2M |
| TimesSquare Capital Management, LLC | 0.74% | Add +4.8% | 2,668,307 | $49.0M |
| Fuller & Thaler Asset Management, Inc. | 0.16% | New | 2,592,382 | $47.6M |
| Citadel Advisors | 0.03% | Add +466.9% | 2,272,311 | $41.8M |
| Champlain Investment Partners, LLC | 0.39% | Reduce -26.7% | 2,116,556 | $38.9M |
| BlackRock, Inc. | 0.00% | Add +0.1% | 2,105,813 | $38.7M |
| Wellington Management Group LLP | 0.00% | Add +6.4% | 1,342,754 | $24.7M |
| Wasatch Advisors LP | 0.15% | Add +3.2% | 1,334,873 | $24.5M |
| Neuberger Berman Group LLC | 0.02% | Reduce -3.5% | 1,281,694 | $23.6M |
| American Century Companies Inc. | 0.01% | Add +10.9% | 1,271,265 | $23.4M |
| Moore Capital Management, LP | 0.47% | New | 1,204,698 | $22.1M |
| Geode Capital Management, LLC | 0.00% | Add +3.9% | 1,066,278 | $19.6M |
| Massachusetts Financial Services Co. | 0.01% | Reduce -26.2% | 1,050,802 | $19.3M |
| Morgan Stanley | 0.00% | Reduce -17.9% | 941,344 | $17.3M |
| Federated Hermes, Inc. | 0.03% | No change | 850,000 | $15.6M |
| Qube Research & Technologies Ltd | 0.02% | Add +21.1% | 759,759 | $14.0M |
| State Street Corp. | 0.00% | Add +4.5% | 752,576 | $13.8M |
| Goldman Sachs Group Inc. | 0.00% | Add +6.2% | 704,151 | $12.9M |
| Clearbridge Investments, LLC | 0.01% | Add +0.3% | 613,505 | $11.3M |
| Healthcare of Ontario Pension Plan Trust Fund | 0.02% | Reduce -36.8% | 600,000 | $11.0M |
| Tensile Capital Management LP | 1.29% | New | 541,070 | $9.9M |
| Alyeska Investment Group, L.P. | 0.03% | Add +62.9% | 530,341 | $9.7M |
| UBS Group AG | 0.00% | Add +32.1% | 477,796 | $8.8M |
| Alkeon Capital Management LLC | 0.04% | Reduce -40.6% | 475,000 | $8.7M |
| Charles Schwab Investment Management Inc. | 0.00% | Add +2.4% | 471,564 | $8.7M |
| Point72 Asset Management | 0.01% | New | 470,765 | $8.7M |
| ExodusPoint Capital Management, LP | 0.09% | New | 442,851 | $8.1M |
| TD Asset Management Inc | 0.01% | Reduce -7.9% | 438,496 | $8.1M |
| Wells Fargo & Company | 0.00% | Reduce -33.0% | 422,819 | $7.8M |
| Balyasny Asset Management L.P. | 0.01% | New | 409,625 | $7.5M |
| Bank of America Corp. | 0.00% | Reduce -38.5% | 389,127 | $7.2M |
| Capricorn Fund Managers Ltd | 1.68% | New | 380,000 | $7.0M |
| Voloridge Investment Management, LLC | 0.02% | Reduce -18.9% | 353,662 | $6.5M |
| Armistice Capital, LLC | 0.15% | Add +34.4% | 336,000 | $6.2M |
| Millennium Management | 0.00% | Reduce -52.3% | 335,581 | $6.2M |
| Soros Fund Management | 0.11% | Add +2.3% | 330,000 | $6.1M |
| Evergreen Capital Management LLC | 0.13% | Reduce -6.3% | 325,113 | $6.0M |
| Sei Investments Co. | 0.01% | Reduce -15.2% | 301,913 | $5.5M |
| AQR Capital Management | 0.00% | New | 290,426 | $5.3M |
| JPMorgan Chase & Co. | 0.00% | Add +159.2% | 284,661 | $5.2M |
| Citigroup Inc. | 0.00% | Reduce -30.5% | 279,100 | $5.1M |
| SG Americas Securities, LLC | 0.01% | New | 274,788 | $5.1M |
| King Luther Capital Management Corp. | 0.02% | Add +91.1% | 268,054 | $4.9M |
| Seven Grand Managers, LLC | 0.35% | Reduce -50.0% | 250,000 | $4.6M |
| Kornitzer Capital Management Inc. | 0.09% | No change | 245,605 | $4.5M |
| Capital Fund Management S.A. | 0.04% | Add +19.0% | 242,910 | $4.5M |
| Jane Street Group, LLC | 0.01% | Add +264.3% | 240,041 | $4.4M |
| Northern Trust Corp. | 0.00% | Add +9.4% | 231,178 | $4.2M |
| Bank of New York Mellon Corp | 0.00% | Reduce -3.9% | 226,248 | $4.2M |
| Royal Bank of Canada | 0.00% | Reduce -82.1% | 214,443 | $3.9M |
| Annis Gardner Whiting Capital Advisors, LLC | 0.72% | Add +0.4% | 206,284 | $3.8M |
| Boothbay Fund Management, LLC | 0.10% | Add +105.0% | 202,257 | $3.7M |
| Tudor Investment Corporation | 0.02% | Add +427.1% | 177,462 | $3.3M |
| Barclays PLC | 0.00% | Add +13.7% | 169,314 | $3.1M |
| Swiss National Bank | 0.00% | Add +19.0% | 156,500 | $2.9M |
| State of Wisconsin Investment Board | 0.01% | Reduce -5.8% | 151,604 | $2.8M |
| Jump Financial, LLC | 0.04% | Add +110.3% | 141,601 | $2.6M |
| Ossiam | 0.05% | No change | 129,200 | $2.4M |
| Readystate Asset Management LP | 0.18% | New | 128,970 | $2.4M |
| Susquehanna International Group, LLP | 0.00% | Reduce -78.0% | 127,208 | $2.3M |
| 2Xideas AG | 0.63% | Reduce -10.4% | 121,825 | $2.2M |
| Algert Global LLC | 0.03% | Reduce -36.6% | 118,200 | $2.2M |
| Envestnet Asset Management Inc. | 0.00% | Reduce -45.9% | 110,078 | $2.0M |
| UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC | 0.00% | Add +41.9% | 106,128 | $2.0M |
| Daiwa Securities Group Inc. | 0.01% | Reduce -13.2% | 91,247 | $1.7M |
| West Paces Advisors Inc. | 0.30% | No change | 85,218 | $1.6M |
| BNP Paribas Financial Markets | 0.00% | Reduce -35.5% | 84,518 | $1.6M |
| Deutsche Bank AG | 0.00% | Reduce -38.1% | 84,026 | $1.5M |
| CIBC Private Wealth Group LLC | 0.00% | Reduce -59.2% | 76,798 | $1.4M |
| Scalar Gauge Management, LLC | 0.91% | New | 75,000 | $1.4M |
| Alberta Investment Management Corp | 0.01% | New | 74,500 | $1.4M |
| Hudson Bay Capital Management LP | 0.01% | New | 70,922 | $1.3M |
| California State Teachers Retirement System | 0.00% | Add +19.2% | 70,571 | $1.3M |
| Legal & General Group Plc | 0.00% | Add +4.2% | 66,873 | $1.2M |
| Public Employees Retirement System of Ohio | 0.00% | No change | 65,210 | $1.2M |
| Y-Intercept (Hong Kong) Ltd | 0.03% | Reduce -74.1% | 64,218 | $1.2M |
| Bessemer Group Inc. | 0.00% | Add +18.8% | 59,759 | $1.1M |
| Comerica Bank | 0.00% | Add +2443.4% | 57,609 | $1.1M |
| Twinbeech Capital LP | 0.07% | Add +209.8% | 56,515 | $1.0M |
| Dark Forest Capital Management LP | 0.05% | Reduce -62.3% | 55,662 | $1.0M |
| Fox Run Management, L.L.C. | 0.15% | New | 52,813 | $971K |
| Ameriprise Financial Inc. | 0.00% | Reduce -8.2% | 52,726 | $969K |
| Elo Mutual Pension Insurance Co | 0.01% | Add +349.9% | 51,055 | $938K |
| CenterBook Partners LP | 0.04% | Add +90.1% | 49,621 | $912K |
| Trexquant Investment LP | 0.01% | Reduce -86.0% | 48,764 | $896K |
| FMR LLC | 0.00% | Reduce -2.3% | 45,061 | $828K |
| Diversified Trust Co. | 0.02% | Add +38.6% | 45,036 | $828K |
| Cetera Investment Advisers | 0.00% | Reduce -7.0% | 41,655 | $766K |
| Stifel Financial Corp. | 0.00% | Reduce -34.9% | 41,168 | $757K |
| HSBC Holdings PLC | 0.00% | New | 39,473 | $737K |
| Oxford Asset Management LLP | 0.21% | New | 31,938 | $587K |
| XY Capital Ltd | 0.56% | New | 30,000 | $551K |
| Peapack Gladstone Financial Corp. | 0.01% | Add +7.5% | 29,500 | $542K |
"% of holder's portfolio" is OS's weight in each manager's 13F, not the share of Onestream Inc. the manager owns.