OnestreamOS
13F holders, Q2 2025 (June 30)186holders +45
65new positions
18sold out
6famous investors
$28.30avg. 13F price*
At the end of Q2 2025, 186 institutions reported holding Onestream Inc. (OS) in their 13F filings, up 45 from Q1 2025. 65 opened new positions and 18 sold out. The largest holders were T. Rowe Price Investment Management, Inc. ($255.4M), Vanguard Group Inc. ($221.3M) and Kayne Anderson Rudnick Investment Management LLC ($194.6M). 6 famous investors held it, including George Soros (0.5% of Soros Fund Management's portfolio), Ken Griffin (0.0% of Citadel Advisors's portfolio) and Israel Englander (0.0% of Millennium Management's portfolio).
- Company
- Onestream Inc.
- CUSIP
- 68278B107
- Latest filing quarter
- Q1 2026
History
Number of 13F holders
Total Exit/New Position Q1 2025 → Q2 2025
| Institutions | Total Value | |
|---|---|---|
| New Positions | 65 | $150.8M |
| Exits | 18 | $26.6M |
All 13F filers, Q1 2025 → Q2 2025: 22,727,761 shares bought and 5,554,844 shares sold, net +17,172,917 shares. Counts holders who added, trimmed, opened or closed a position; split-adjusted.
Ownership 186 holders
| T. Rowe Price Investment Management, Inc. | 0.16% | Add +1.0% | 9,025,499 | $255.4M |
| Vanguard Group Inc. | 0.00% | Add +117.7% | 7,819,431 | $221.3M |
| Kayne Anderson Rudnick Investment Management LLC | 0.46% | Add +7.8% | 6,875,115 | $194.6M |
| Norges Bank | 0.02% | Add +1.7% | 6,343,592 | $179.5M |
| Darlington Partners Capital Management, LP | 3.46% | No change | 3,839,405 | $108.7M |
| Champlain Investment Partners, LLC | 0.75% | Reduce -6.5% | 3,774,996 | $106.8M |
| Goldman Sachs Group Inc. | 0.02% | Add +228.6% | 3,623,209 | $102.5M |
| Temasek Holdings (Private) Ltd | 0.32% | No change | 2,956,360 | $83.7M |
| TimesSquare Capital Management, LLC | 1.09% | Reduce -1.2% | 2,666,751 | $75.5M |
| Brown Advisory Inc. | 0.10% | Add +6.4% | 2,602,154 | $73.6M |
| Alliancebernstein L.P. | 0.02% | Reduce -17.6% | 2,345,434 | $66.4M |
| BlackRock, Inc. | 0.00% | Add +99.1% | 2,049,875 | $58.0M |
| Marshall Wace, LLP | 0.07% | Add +9577.4% | 1,989,102 | $56.3M |
| American Century Companies Inc. | 0.03% | Add +26.4% | 1,653,179 | $46.8M |
| Neuberger Berman Group LLC | 0.03% | Reduce -26.8% | 1,549,660 | $43.9M |
| Wasatch Advisors LP | 0.19% | New | 1,267,914 | $35.9M |
| Citadel Advisors | 0.03% | Add +60.9% | 1,210,113 | $34.2M |
| Massachusetts Financial Services Co. | 0.01% | Reduce -28.3% | 1,063,784 | $30.1M |
| Royal Bank of Canada | 0.01% | Add +1489.5% | 1,013,577 | $28.7M |
| Alkeon Capital Management LLC | 0.13% | Reduce -62.4% | 950,000 | $26.9M |
| Healthcare of Ontario Pension Plan Trust Fund | 0.05% | Reduce -17.7% | 950,000 | $26.9M |
| Geode Capital Management, LLC | 0.00% | Add +38.7% | 946,352 | $26.8M |
| Morgan Stanley | 0.00% | Add +135.7% | 938,295 | $26.6M |
| Seven Grand Managers, LLC | 2.89% | Add +70.0% | 850,000 | $24.1M |
| Federated Hermes, Inc. | 0.05% | No change | 850,000 | $24.1M |
| Alyeska Investment Group, L.P. | 0.08% | Add +10.0% | 800,000 | $22.6M |
| Millennium Management | 0.02% | Add +128.3% | 787,594 | $22.3M |
| Wells Fargo & Company | 0.00% | Add +30.4% | 753,675 | $21.3M |
| Bank of America Corp. | 0.00% | Add +39.2% | 722,341 | $20.4M |
| Voloridge Investment Management, LLC | 0.07% | New | 681,905 | $19.3M |
| State Street Corp. | 0.00% | Add +10.1% | 668,940 | $18.9M |
| Soros Fund Management | 0.47% | Add +33.8% | 625,800 | $17.7M |
| Burkehill Global Management, LP | 1.25% | No change | 600,000 | $17.0M |
| Qube Research & Technologies Ltd | 0.02% | Add +25.6% | 568,518 | $16.1M |
| Clearbridge Investments, LLC | 0.01% | Add +1.6% | 549,003 | $15.5M |
| TD Asset Management Inc | 0.01% | Add +0.1% | 500,266 | $14.2M |
| BNP Paribas Financial Markets | 0.01% | Add +264.7% | 489,943 | $13.9M |
| Charles Schwab Investment Management Inc. | 0.00% | Add +48.5% | 435,288 | $12.3M |
| D. E. Shaw & Co. | 0.01% | Add +1208.3% | 371,251 | $10.5M |
| Jacobs Levy Equity Management, Inc. | 0.04% | Reduce -24.7% | 366,734 | $10.4M |
| Walleye Capital LLC | 0.10% | New | 360,005 | $10.2M |
| Sculptor Capital LP | 0.26% | New | 350,000 | $9.9M |
| King Luther Capital Management Corp. | 0.04% | Add +1.8% | 341,178 | $9.7M |
| Sei Investments Co. | 0.01% | Add +26.1% | 334,322 | $9.5M |
| Citigroup Inc. | 0.01% | Add +12152.1% | 331,541 | $9.4M |
| UBS Group AG | 0.00% | Add +269.2% | 330,579 | $9.4M |
| Trexquant Investment LP | 0.11% | Add +45.4% | 329,803 | $9.3M |
| Ghisallo Capital Management LLC | 0.22% | New | 300,000 | $8.2M |
| Voya Investment Management LLC | 0.01% | New | 258,834 | $7.3M |
| Envestnet Asset Management Inc. | 0.00% | Add +26.1% | 255,773 | $7.2M |
| Jain Global LLC | 0.10% | Reduce -50.2% | 205,764 | $5.8M |
| Centiva Capital, LP | 0.38% | New | 204,950 | $5.8M |
| Northern Trust Corp. | 0.00% | Add +52.8% | 199,054 | $5.6M |
| Fortress Investment Group LLC | 0.81% | Add +1888.5% | 198,846 | $5.6M |
| CIBC Private Wealth Group LLC | 0.01% | Add +14.0% | 194,051 | $5.5M |
| Jane Street Group, LLC | 0.01% | New | 184,424 | $5.2M |
| Balyasny Asset Management L.P. | 0.01% | New | 182,480 | $5.2M |
| Capstone Investment Advisors, LLC | 0.05% | New | 175,000 | $5.0M |
| 2Xideas AG | 0.85% | New | 174,621 | $4.9M |
| Woodline Partners LP | 0.03% | Add +26.7% | 169,643 | $4.8M |
| State of Wisconsin Investment Board | 0.01% | Add +1.8% | 162,011 | $4.6M |
| UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC | 0.00% | Add +189.2% | 160,089 | $4.5M |
| Swiss National Bank | 0.00% | Add +71.8% | 136,400 | $3.9M |
| Deutsche Bank AG | 0.00% | Add +3.5% | 134,876 | $3.8M |
| Man Group plc | 0.01% | Add +987.5% | 125,000 | $3.5M |
| Boothbay Fund Management, LLC | 0.11% | Add +72.7% | 120,905 | $3.4M |
| Daiwa Securities Group Inc. | 0.01% | Add +11.0% | 111,950 | $3.2M |
| Primecap Management Co. | 0.00% | Reduce -27.0% | 105,900 | $3.0M |
| Holocene Advisors, LP | 0.01% | Reduce -1.1% | 105,848 | $3.0M |
| Raymond James Financial Inc. | 0.00% | Reduce -66.8% | 88,506 | $2.5M |
| West Paces Advisors Inc. | 0.51% | No change | 85,108 | $2.4M |
| Nebula Research & Development LLC | 0.20% | Add +197.5% | 83,315 | $2.4M |
| Voleon Capital Management LP | 0.13% | Add +22.5% | 81,765 | $2.3M |
| Azzad Asset Management Inc. | 0.25% | Add +53.4% | 81,118 | $2.3M |
| Stifel Financial Corp. | 0.00% | Add +14.9% | 74,010 | $2.1M |
| Longaeva Partners L.P. | 0.46% | New | 66,069 | $1.9M |
| Public Employees Retirement System of Ohio | 0.01% | New | 65,210 | $1.8M |
| California State Teachers Retirement System | 0.00% | Add +94.0% | 65,075 | $1.8M |
| Bessemer Group Inc. | 0.00% | Add +0.0% | 64,913 | $1.8M |
| Legal & General Group Plc | 0.00% | Add +80.9% | 64,201 | $1.8M |
| XTX Topco Ltd | 0.08% | Add +113.3% | 64,120 | $1.8M |
| First Trust Advisors LP | 0.00% | New | 60,499 | $1.7M |
| Algert Global LLC | 0.04% | New | 59,620 | $1.7M |
| Two Sigma Investments, LP | 0.00% | Reduce -20.7% | 56,968 | $1.6M |
| Quantbot Technologies LP | 0.04% | New | 56,690 | $1.6M |
| M&T Bank Corp | 0.01% | Add +47.8% | 53,829 | $1.5M |
| Lazard Asset Management LLC | 0.00% | New | 52,832 | $1.5M |
| Ameriprise Financial Inc. | 0.00% | New | 49,950 | $1.4M |
| EFG Asset Management (North America) Corp. | 0.20% | New | 49,788 | $1.4M |
| Renaissance Capital LLC | 0.93% | Reduce -43.8% | 46,940 | $1.3M |
| FMR LLC | 0.00% | Reduce -3.7% | 45,643 | $1.3M |
| Tudor Investment Corporation | 0.01% | New | 44,621 | $1.3M |
| Russell Investments Group, Ltd. | 0.00% | Reduce -5.1% | 42,488 | $1.2M |
| Diversified Trust Co. | 0.03% | Add +0.5% | 42,227 | $1.2M |
| Twinbeech Capital LP | 0.03% | New | 39,132 | $1.1M |
| Norden Group LLC | 0.12% | Add +75.2% | 38,389 | $1.1M |
| CenterBook Partners LP | 0.06% | Add +32.4% | 38,311 | $1.1M |
| Montis Financial, LLC | 0.30% | No change | 37,759 | $1.1M |
| Weiss Asset Management LP | 0.02% | New | 36,451 | $1.0M |
| Dakota Wealth Management | 0.02% | New | 35,202 | $996K |
"% of holder's portfolio" is OS's weight in each manager's 13F, not the share of Onestream Inc. the manager owns.