Institutional Ownership
Onestream Inc
CUSIP 68278B107CL AK4FQ1 2026
13D / 13G Filings
34
Schedule 13D/13G on record
Beneficial Filers
20
Distinct reporting persons
Largest Stake
67.5%
Max % of class reported
Institutional Holders
172
13F filers (latest quarter)
Beneficial Owners — Schedule 13D / 13G
34 filings · latest Feb 17, 2026
| # | Filed | Reporting Person | Form | % of Class | Shares | Filing |
|---|---|---|---|---|---|---|
| 1 | Feb 17, 2026 | T. Rowe Price Investment Management, Inc. | 13G/A | 8.6% | 7.78M | SEC |
| 2 | Feb 13, 2026 | Thomas Anthony Shea | 13G/A | 16.3% | 18.17M | SEC |
| 3 | Feb 13, 2026 | Kayne Anderson Rudnick Investment Management, LLC | 13G/A | 5.4% | 4.87M | SEC |
| 4 | Feb 12, 2026 | Champlain Investment Partners, LLC | 13G | 3.3% | 2.89M | SEC |
| 5 | Feb 9, 2026 | Glazer Capital, LLC | 13G | 6.8% | 6.17M | SEC |
| 6 | Jan 26, 2026 | Norges Bank | 13G/A | 6.6% | 5.97M | SEC |
| 7 | Nov 13, 2025 | Kayne Anderson Rudnick Investment Management, LLC | 13G/A | 7.0% | — | SEC |
| 8 | Nov 3, 2025 | Norges Bank | 13G/A | 9.7% | 8.53M | SEC |
| 9 | Jul 28, 2025 | Norges Bank | 13G/A | 8.4% | 6.34M | SEC |
| 10 | Jul 7, 2025 | The Vanguard Group | 13G/A | 10.4% | 7.82M | SEC |
24 more beneficial-ownership filings on Premium
See the full Schedule 13D/13G history for Onestream Inc.
Unlock full historyTop Institutional Holders (13F)
Largest reported positions · latest quarter
| # | Fund | Shares | Value |
|---|---|---|---|
| 1 | Temasek Holdings (Private) Ltd | 4.27M | $102.40M |
| 2 | Fil Ltd | 3.99M | $95.81M |
| 3 | Aqr Arbitrage LLC | 3.39M | $81.44M |
| 4 | Nexpoint Asset Management, L.P. | 3.36M | $80.60M |
| 5 | O'Connor Alternative Investments LLC | 3.19M | $76.48M |
| 6 | Polar Asset Management Partners Inc. | 2.94M | $70.67M |
| 7 | Millennium Management LLC | 2.47M | $59.31M |
| 8 | Blackrock, Inc. | 2.34M | $56.15M |
| 9 | Ubs Group AG | 2.26M | $54.17M |
| 10 | Man Group PLC | 2.20M | $52.91M |