Ranked by reported Q2 2026 13F market value
Share of total reported institutional value in OSCR held by the largest 10 / 25 filers.
| # | Institution | Shares Held | Market Value | QoQ Change | Ownership % | % of Fund |
|---|---|---|---|---|---|---|
| 1 | BlackRock, Inc. | 20.6M | $587.2M | +18.9% | 7.940% | 0.01% |
| 2 | D. E. Shaw & Co., Inc. | 12.8M | $363.7M | +94.1% | 4.918% | 0.17% |
| 3 | VANGUARD PORTFOLIO MANAGEMENT LLC | 11.0M | $314.6M | +4.6% | 4.254% | 0.01% |
| 4 | VANGUARD CAPITAL MANAGEMENT LLC | 10.6M | $301.7M | -1.8% | 4.080% | 0.01% |
| 5 | JANE STREET GROUP, LLC | 9.4M | $269.3M | +46.9% | 3.642% | 0.02% |
| 6 | AMERICAN CENTURY COMPANIES INC | 9.1M | $258.3M | +28.8% | 3.492% | 0.11% |
| 7 | CITADEL ADVISORS LLC | 8.3M | $237.6M | +6.9% | 3.213% | 0.01% |
| 8 | SUSQUEHANNA INTERNATIONAL GROUP, LLP | 8.1M | $231.7M | -15.8% | 3.133% | 0.02% |
| 9 | Thrive Capital Management, LLC | 6.3M | $180.9M | 0.0% | 2.447% | 4.75% |
| 10 | GEODE CAPITAL MANAGEMENT, LLC | 5.8M | $166.0M | +15.6% | 2.244% | 0.01% |
| 11 | STATE STREET CORP | 5.8M | $165.5M | +10.2% | 2.237% | 0.00% |
| 12 | FMR LLC | 5.0M | $142.6M | +317.0% | 1.928% | 0.01% |
| 13 | TWO SIGMA INVESTMENTS, LP | 4.1M | $115.6M | +68.3% | 1.564% | 0.08% |
| 14 | DIMENSIONAL FUND ADVISORS LP | 3.6M | $101.9M | -14.8% | 1.378% | 0.02% |
| 15 | BIT Capital GmbH | 3.4M | $97.5M | -45.9% | 1.318% | 2.89% |
| 16 | RENAISSANCE TECHNOLOGIES LLC | 3.3M | $93.7M | — | 1.267% | 0.13% |
| 17 | JACOBS LEVY EQUITY MANAGEMENT, INC | 3.0M | $86.3M | +22.3% | 1.167% | 0.31% |
| 18 | GLYNN CAPITAL MANAGEMENT LLC | 2.6M | $73.5M | -0.6% | 0.993% | 20.22% |
| 19 | GOLDMAN SACHS GROUP INC | 2.3M | $65.3M | +55.6% | 0.883% | 0.01% |
| 20 | NORTHERN TRUST CORP | 2.2M | $63.1M | +17.8% | 0.853% | 0.01% |
| 21 | WOLVERINE ASSET MANAGEMENT LLC | 2.2M | $61.8M | -7.5% | 0.836% | 0.54% |
| 22 | CHARLES SCHWAB INVESTMENT MANAGEMENT INC | 2.1M | $60.5M | +11.7% | 0.818% | 0.01% |
| 23 | MORGAN STANLEY | 2.1M | $60.3M | -37.0% | 0.816% | 0.00% |
| 24 | Walleye Trading LLC | 2.1M | $59.3M | -11.8% | 0.802% | 0.07% |
| 25 | Nuveen, LLC | 1.8M | $50.5M | +33.7% | 0.683% | 0.01% |
denotes a marquee investor (Buffett, Burry, ARK, Tiger Global, Pershing Square, Baupost and other widely-followed managers). “% of Fund” shows how much of that investor’s total 13F portfolio is invested in OSCR — a direct measure of their conviction.
Filings activity in OSCR during Q2 2026, grouped by how each filer changed its position.
8 quarters of 13F filings · Δ columns show change vs prior quarter
| Quarter | Inst. Holders | Δ Holders | Ownership % | Δ Ownership | Total 13F Value | Δ Value |
|---|---|---|---|---|---|---|
| Q2 2026 | 410 | +22% | 85.86% | +8.73 pp | $5.86B | +179% |
| Q1 2026 | 335 | 0.9% | 77.13% | 10.52 pp | $2.10B | 21% |
| Q4 2025 | 338 | +0.9% | 87.65% | 4.27 pp | $2.66B | 18% |
| Q3 2025 | 335 | +5.7% | 91.92% | +9.45 pp | $3.25B | 3.8% |
| Q2 2025 | 317 | +12% | 82.47% | +4.81 pp | $3.37B | +53% |
| Q1 2025 | 282 | +12% | 77.66% | 17.66 pp | $2.21B | 8.5% |
| Q4 2024 | 252 | 9.4% | 95.32% | +1.92 pp | $2.42B | 28% |
| Q3 2024 | 278 | — | 93.40% | — | $3.36B | — |
Source: SEC 13F institutional filings. Ownership % requires market cap data and will show once linked. Δ columns compare to the immediately prior filed quarter.
Quick answers to the most common questions about buying OSCR stock.
Based on Q2 2026 13F filings, institutional ownership of Oscar Health, Inc. stands at 85.9%, held across 410 reporting institutions.
BlackRock, Inc. is the largest reported institutional holder of OSCR, with approximately 20,587,428 shares worth $0.59B as of Q2 2026.
Yes — 5 widely-followed marquee investors appear among the top 25 institutional holders of OSCR, including JANE STREET GROUP, LLC, CITADEL ADVISORS LLC, SUSQUEHANNA INTERNATIONAL GROUP, LLP, TWO SIGMA INVESTMENTS, LP, RENAISSANCE TECHNOLOGIES LLC.
Our composite Smart Money Score for OSCR is 87 out of 100 (Strong Smart Money). It combines net institutional buying activity, ownership shift, marquee investor presence, and holder-count growth.
116 institutions opened new positions in OSCR during Q2 2026, while 48 fully exited. 260 added to existing positions and 19 trimmed.
OSCR institutional ownership rose by 8.73 percentage points quarter-over-quarter, with a net change of +75 holders.
The top 10 institutions account for 49.7% of all reported 13F value in OSCR, and the top 25 account for 71.8%.
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.
Oscar Health, Inc. (OSCR) Institutional Ownership