Onterris
Ownership
Ownership Structure
Who owns Onterris (ONT)? This page shows the largest institutions and funds, the ownership structure and the latest insider transactions. 87.3% of the shares are freely tradable; institutional investors hold 99.5%.
Largest Shareholders
Institutions
| Name | Stake (%) | Shares | Change (%) | Date |
|---|---|---|---|---|
| BlackRock Inc | 8.97 | 3,150,760 | -2.8 | 03/31/2026 |
| BAMCO Inc | 6.17 | 2,168,183 | +0.4 | 03/31/2026 |
| The Goldman Sachs Group Inc | 5.58 | 1,960,610 | +13.1 | 03/31/2026 |
| Delaware Management Holdings Inc | 4.36 | 1,531,641 | -7.4 | 03/31/2026 |
| UBS Asset Mgmt Americas Inc | 4.32 | 1,515,671 | +4.0 | 03/31/2026 |
| Vanguard Capital Management, LLC | 4.09 | 1,436,165 | +0.0 | 03/31/2026 |
Funds
| Name | Stake (%) | Shares | Change (%) | Date |
|---|---|---|---|---|
| Nomura US Small Cap Core Equity | 4.82 | 1,693,344 | +45.3 | 06/30/2026 |
| Nomura Small Cap Core I | 4.82 | 1,693,344 | +0.0 | 07/31/2026 |
| Baron Discovery Strategy | 4.04 | 1,419,000 | +0.0 | 06/30/2026 |
| Baron Discovery Institutional | 4.04 | 1,419,000 | +0.0 | 06/30/2026 |
Largest reported positions according to regulatory filings; stake as a percentage of shares outstanding, change versus the previous filing. Source: fundamentals data.
Data as of: September 17, 2026 · Source: fundamental data & SEC filings (annual and quarterly reports, 10-K/10-Q)
Note: pure fact-based analysis, not investment advice and not a solicitation to buy or sell. All figures without guarantee.