Ranked by reported Q2 2026 13F market value
Share of total reported institutional value in ONT held by the largest 10 / 25 filers.
| # | Institution | Shares Held | Market Value | QoQ Change | Ownership % | % of Fund |
|---|---|---|---|---|---|---|
| 1 | BlackRock, Inc. | 3.3M | $66.2M | +3.9% | 9.054% | 0.00% |
| 2 | BAMCO INC /NY/ | 2.1M | $43.2M | -1.4% | 5.909% | 0.06% |
| 3 | NOMURA ASSET MANAGEMENT INTERNATIONAL INC. | 2.1M | $42.4M | +36.9% | 5.798% | 0.06% |
| 4 | GOLDMAN SACHS GROUP INC | 1.9M | $39.0M | -1.5% | 5.338% | 0.00% |
| 5 | Corvex Management LP | 1.8M | $35.8M | β | 4.894% | 1.09% |
| 6 | ALLIANCEBERNSTEIN L.P. | 1.5M | $32.6M | +31.8% | 4.120% | 0.01% |
| 7 | VANGUARD CAPITAL MANAGEMENT LLC | 1.5M | $29.4M | +1.2% | 4.018% | 0.00% |
| 8 | FMR LLC | 1.4M | $29.2M | +154.0% | 3.991% | 0.00% |
| 9 | UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AME | 1.3M | $25.3M | -17.4% | 3.462% | 0.00% |
| 10 | NOMURA HOLDINGS INC | 1.2M | $25.2M | β | 3.454% | 0.03% |
| 11 | PRINCIPAL FINANCIAL GROUP INC | 1.2M | $25.1M | -7.6% | 3.440% | 0.01% |
| 12 | ROYCE & ASSOCIATES LP | 1.1M | $22.1M | +14.6% | 3.025% | 0.18% |
| 13 | DIMENSIONAL FUND ADVISORS LP | 1.0M | $20.3M | +16.9% | 2.776% | 0.00% |
| 14 | Amundi | 929K | $18.8M | +5.5% | 2.567% | 0.00% |
| 15 | UBS Group AG | 927K | $18.7M | +318.1% | 2.564% | 0.00% |
| 16 | GEODE CAPITAL MANAGEMENT, LLC | 869K | $17.6M | +8.2% | 2.403% | 0.00% |
| 17 | Legal & General Group Plc | 818K | $16.5M | +8.5% | 2.262% | 0.00% |
| 18 | STATE STREET CORP | 799K | $16.1M | +9.7% | 2.209% | 0.00% |
| 19 | TRUIST FINANCIAL CORP | 793K | $16.0M | -0.3% | 2.192% | 0.02% |
| 20 | Stephens Investment Management Group LLC | 737K | $14.9M | +6.0% | 2.037% | 0.16% |
| 21 | MORGAN STANLEY | 618K | $12.5M | +21.5% | 1.709% | 0.00% |
| 22 | MILLENNIUM MANAGEMENT LLC | 441K | $8.9M | +41.8% | 1.220% | 0.00% |
| 23 | NORTHERN TRUST CORP | 402K | $8.1M | +17.7% | 1.111% | 0.00% |
| 24 | Allspring Global Investments Holdings, LLC | 383K | $7.7M | -2.7% | 1.060% | 0.01% |
| 25 | Assenagon Asset Management S.A. | 358K | $7.2M | β | 0.989% | 0.00% |
denotes a marquee investor (Buffett, Burry, ARK, Tiger Global, Pershing Square, Baupost and other widely-followed managers). β% of Fundβ shows how much of that investorβs total 13F portfolio is invested in ONT β a direct measure of their conviction.
Filings activity in ONT during Q2 2026, grouped by how each filer changed its position.
8 quarters of 13F filings Β· Ξ columns show change vs prior quarter
| Quarter | Inst. Holders | Ξ Holders | Ownership % | Ξ Ownership | Total 13F Value | Ξ Value |
|---|---|---|---|---|---|---|
| Q2 2026 | 158 | 8.7% | 105.14% | +10.80 pp | $759M | +3.4% |
| Q1 2026 | 173 | 7.0% | 94.34% | +2.39 pp | $734M | 7.8% |
| Q4 2025 | 186 | +0.5% | 91.95% | +0.77 pp | $796M | 9.3% |
| Q3 2025 | 185 | +16% | 91.18% | 4.75 pp | $877M | +19% |
| Q2 2025 | 159 | 2.5% | 95.93% | +0.07 pp | $740M | +55% |
| Q1 2025 | 163 | 1.2% | 95.86% | +1.91 pp | $479M | 21% |
| Q4 2024 | 165 | 8.8% | 93.95% | +2.99 pp | $608M | 27% |
| Q3 2024 | 181 | β | 90.96% | β | $831M | β |
Source: SEC 13F institutional filings. Ownership % requires market cap data and will show once linked. Ξ columns compare to the immediately prior filed quarter.
Quick answers to the most common questions about buying ONT stock.
Based on Q2 2026 13F filings, institutional ownership of Onterris, Inc. stands at 105.1%, held across 158 reporting institutions.
BlackRock, Inc. is the largest reported institutional holder of ONT, with approximately 3,274,887 shares worth $0.07B as of Q2 2026.
Yes β 1 widely-followed marquee investor appear among the top 25 institutional holders of ONT, including MILLENNIUM MANAGEMENT LLC.
Our composite Smart Money Score for ONT is 51 out of 100 (Neutral). It combines net institutional buying activity, ownership shift, marquee investor presence, and holder-count growth.
22 institutions opened new positions in ONT during Q2 2026, while 36 fully exited. 46 added to existing positions and 85 trimmed.
ONT institutional ownership rose by 10.80 percentage points quarter-over-quarter, with a net change of -15 holders.
The top 10 institutions account for 48.5% of all reported 13F value in ONT, and the top 25 account for 78.9%.
All data is sourced from SEC Form 13F filings, which institutional investment managers with at least $100M in assets are required to file each quarter. We process every 13F filing from EDGAR and recompute the aggregates after each cycle. Insider transactions are sourced from Form 4 filings.
Onterris, Inc. (ONT) Institutional Ownership