Security record
OSUR
name pending profile ingest
68Tracked holders
+6Δ holders
31.55MShares held
$140.57MReported value
+9New positions
−3Exits
Momentum inputs (comparable managers):
holder breadth +9.7% ·
share flow +2.2% ·
net new positions +8.8%
— formula
Broad accumulation — rising shares across more holders
All ownership figures: tracked 13F managers only, common-stock positions, reporting period Q2 2026
Ownership over time
| Quarter | Holders | Δ | Shares | Reported value | New | Exits |
|---|---|---|---|---|---|---|
| Q2 2026 | 68 | +6 | 31.55M | $140.57M | +9 | −3 |
| Q1 2026 | 64 | +5 | 30.89M | $92.54M | +7 | −2 |
| Q4 2025 | 59 | -1 | 33.90M | $82.04M | — | −1 |
| Q3 2025 | 15 | -1 | 25.02M | $80.33M | — | −1 |
| Q2 2025 | 13 | 0 | 20.32M | $60.97M | — | — |
| Q1 2025 | 10 | -1 | 11.46M | $38.61M | — | −1 |
| Q4 2024 | 11 | +2 | 12.43M | $44.86M | +2 | — |
| Q3 2024 | 8 | -3 | 9.07M | $38.71M | — | −3 |
| Q2 2024 | 11 | — | 9.46M | $40.30M | — | — |
Who holds it · Q2 2026
| # | Manager | Shares | Δ shares | Value | Their weight | Held | ||
|---|---|---|---|---|---|---|---|---|
| 1 | BlackRock ✦ (passive) | 6.26M | -4.0% | $27.91M | 0.0% | ▼ Trim | 5 | SEC ↗ ×8 |
| 2 | Neuberger Berman Group LLC | 4.69M | +7.4% | $20.92M | 0.0% | ▲ Add | 3 | SEC ↗ ×2 |
| 3 | Vanguard Capital Management Llc | 3.02M | -0.4% | $13.46M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 4 | Dimensional Fund Advisors Lp | 2.34M | -17.0% | $10.44M | 0.0% | ▼ Trim | 3 | SEC ↗ ×4 |
| 5 | Renaissance Technologies ✦ | 2.01M | -3.3% | $8.99M | 0.0% | ▼ Trim | 9 | SEC ↗ |
| 6 | Geode Capital Management ✦ (passive) | 1.81M | -0.7% | $8.07M | 0.0% | ▼ Trim | 9 | SEC ↗ ×2 |
| 7 | State Street Global Advisors ✦ (passive) | 1.69M | -1.1% | $7.52M | 0.0% | ▼ Trim | 7 | SEC ↗ |
| 8 | First Eagle Investment Management… | 1.06M | New | $4.74M | 0.0% | New | 1 | SEC ↗ ×2 |
| 9 | Wells Fargo & Company/Mn | 924.03K | +2.7% | $4.12M | 0.0% | ▲ Add | 3 | SEC ↗ ×3 |
| 10 | D. E. Shaw & Co. ✦ | 827.19K | -40.2% | $3.69M | 0.0% | ▼ Trim | 9 | SEC ↗ ×2 |
| 11 | JPMorgan Chase ✦ | 589.18K | +63.4% | $2.65M | 0.0% | ▲ Add | 4 | SEC ↗ ×4 |
| 12 | Northern Trust Corp | 587.41K | -1.3% | $2.62M | 0.0% | ▼ Trim | 3 | SEC ↗ ×4 |
| 13 | Charles Schwab Investment… | 579.58K | -1.1% | $2.58M | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 14 | Goldman Sachs Group ✦ | 561.65K | +36.5% | $2.50M | 0.0% | ▲ Add | 4 | SEC ↗ ×3 |
| 15 | Tudor Investment Corp Et Al | 400.83K | +255.5% | $1.79M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 16 | Morgan Stanley ✦ | 335.64K | -10.2% | $1.50M | 0.0% | ▼ Trim | 4 | SEC ↗ ×6 |
| 17 | AQR Capital Management ✦ | 319.84K | -3.3% | $1.43M | 0.0% | ▼ Trim | 9 | SEC ↗ ×6 |
| 18 | UBS Group AG | 259.99K | +6.9% | $1.16M | 0.0% | ▲ Add | 3 | SEC ↗ ×3 |
| 19 | T. Rowe Price ✦ | 230.17K | +17.6% | $1.03M | 0.0% | ▲ Add | 9 | SEC ↗ |
| 20 | Bank of New York Mellon Corp | 207.62K | +3.6% | $925,980 | 0.0% | ▲ Add | 3 | SEC ↗ ×4 |
| 21 | Sei Investments Co | 204.51K | -51.1% | $912,144 | 0.0% | ▼ Trim | 3 | SEC ↗ ×2 |
| 22 | Susquehanna International Group, Llp | 198.78K | +29.4% | $886,555 | 0.0% | ▲ Add | 3 | SEC ↗ ×2 |
| 23 | American Century Companies Inc | 189.72K | -5.1% | $846,165 | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 24 | Millennium Management ✦ | 188.32K | +893.4% | $839,921 | 0.0% | ▲ Add | 9 | SEC ↗ |
| 25 | Ameriprise Financial Inc | 176.05K | -19.3% | $785,192 | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 26 | Man Group plc | 150.85K | New | $672,809 | 0.0% | New | 1 | SEC ↗ |
| 27 | Arrowstreet Capital ✦ | 146.03K | New | $651,272 | 0.0% | New | 1 | SEC ↗ |
| 28 | Invesco Ltd. | 132.97K | -19.4% | $593,032 | 0.0% | ▼ Trim | 3 | SEC ↗ ×3 |
| 29 | Nuveen, LLC | 131.33K | -17.6% | $585,741 | 0.0% | ▼ Trim | 3 | SEC ↗ ×2 |
| 30 | Deutsche Bank Ag\ | 118.22K | +3.2% | $527,284 | 0.0% | ▲ Add | 3 | SEC ↗ ×2 |
| 31 | Hsbc Holdings Plc | 119.43K | -15.5% | $523,701 | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 32 | Barclays Plc | 106.94K | -7.2% | $476,948 | 0.0% | ▼ Trim | 3 | SEC ↗ ×2 |
| 33 | Citadel Advisors ✦ | 101.96K | +84.3% | $454,733 | 0.0% | ▲ Add | 9 | SEC ↗ |
| 34 | Rhumbline Advisers | 88.26K | +3.9% | $393,648 | 0.0% | ▲ Add | 3 | SEC ↗ |
| 35 | Alliancebernstein L.P. | 108.82K | -12.8% | $326,448 | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 36 | Russell Investments Group, Ltd. | 71.75K | -14.3% | $320,021 | 0.0% | ▼ Trim | 3 | SEC ↗ ×5 |
| 37 | Two Sigma Investments ✦ | 59.30K | +5.7% | $264,478 | 0.0% | ▲ Add | 2 | SEC ↗ |
| 38 | Bank Of America Corp /De/ | 57.38K | -57.3% | $255,901 | 0.0% | ▼ Trim | 3 | SEC ↗ ×2 |
| 39 | State Of Wisconsin Investment Board | 47.70K | New | $212,729 | 0.0% | New | 1 | SEC ↗ |
| 40 | IMC-Chicago, LLC | 46.65K | +98.4% | $208,059 | 0.0% | ▲ Add | 2 | SEC ↗ |
| 41 | State Board Of Administration Of… | 34.34K | 0.0% | $153,147 | 0.0% | Held | 3 | SEC ↗ |
| 42 | Citigroup Inc | 30.24K | +109.5% | $134,889 | 0.0% | ▲ Add | 3 | SEC ↗ ×2 |
| 43 | MIRAE ASSET GLOBAL ETFS HOLDINGS… | 30.19K | -10.4% | $134,665 | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 44 | HighTower Advisors, LLC | 29.52K | -53.3% | $131,664 | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 45 | Marshall Wace ✦ | 24.20K | New | $107,932 | 0.0% | New | 1 | SEC ↗ |
| 46 | Group One Trading Llc | 21.51K | New | $95,939 | 0.0% | New | 1 | SEC ↗ |
| 47 | Quantinno Capital Management LP | 20.61K | New | $91,934 | 0.0% | New | 1 | SEC ↗ |
| 48 | Manufacturers Life Insurance… | 20.55K | -2.7% | $91,657 | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 49 | New York State Common Retirement… | 19.31K | 0.0% | $86,109 | 0.0% | Held | 3 | SEC ↗ |
| 50 | LPL Financial LLC | 18.63K | -6.7% | $83,081 | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 51 | Voya Investment Management Llc | 16.20K | +13.6% | $72,243 | 0.0% | ▲ Add | 3 | SEC ↗ |
| 52 | Simplex Trading, Llc | 15.44K | -86.9% | $68,862 | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 53 | Jane Street Group, Llc | 14.52K | -88.4% | $64,764 | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 54 | Pnc Financial Services Group, Inc. | 13.88K | +37.2% | $61,883 | 0.0% | ▲ Add | 3 | SEC ↗ ×3 |
| 55 | Wealth Enhancement Advisory… | 12.92K | New | $55,501 | 0.0% | New | 1 | SEC ↗ |
| 56 | Grantham, Mayo, Van Otterloo & Co.… | 12.33K | 0.0% | $54,996 | 0.0% | Held | 3 | SEC ↗ |
| 57 | Osaic Holdings, Inc. | 12.17K | +3.6% | $54,269 | 0.0% | ▲ Add | 3 | SEC ↗ ×2 |
| 58 | Prudential Financial Inc | 11.68K | 0.0% | $52,079 | 0.0% | Held | 2 | SEC ↗ |
| 59 | Fidelity (FMR) ✦ | 10.32K | -0.7% | $46,049 | 0.0% | ▼ Trim | 5 | SEC ↗ ×2 |
| 60 | Mercer Global Advisors Inc /Adv | 10.11K | New | $45,100 | 0.0% | New | 1 | SEC ↗ |
| 61 | Bnp Paribas Financial Markets | 8.22K | -57.3% | $36,679 | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 62 | Legal & General Group Plc | 6.75K | 0.0% | $30,105 | 0.0% | Held | 3 | SEC ↗ |
| 63 | Royal Bank Of Canada | 6.79K | +101.7% | $30,000 | 0.0% | ▲ Add | 3 | SEC ↗ ×2 |
| 64 | Fifth Third Bancorp | 1.76K | +5.8% | $7,835 | 0.0% | ▲ Add | 2 | SEC ↗ |
| 65 | Rockefeller Capital Management L.P. | 1.00K | -41.7% | $4,460 | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 66 | Assetmark, Inc | 664 | +16500.0% | $2,961 | 0.0% | ▲ Add | 2 | SEC ↗ |
| 67 | UBS AM, a distinct business unit of… | 270 | 0.0% | $1,204 | 0.0% | Held | 2 | SEC ↗ |
| 68 | Optiver Holding B.V. | 6 | -99.2% | $27 | 0.0% | ▼ Trim | 3 | SEC ↗ |
“Their weight” = the position's share of that manager's reported 13F equity value — the conviction measure. ✦ = curated manager.
New buyers
| First Eagle Investment… | $4.74M | 0.0% |
| Man Group plc | $672,809 | 0.0% |
| Arrowstreet Capital | $651,272 | 0.0% |
| State Of Wisconsin Investment… | $212,729 | 0.0% |
| Marshall Wace | $107,932 | 0.0% |
| Group One Trading Llc | $95,939 | 0.0% |
| Quantinno Capital Management… | $91,934 | 0.0% |
| Wealth Enhancement Advisory… | $55,501 | 0.0% |
| Mercer Global Advisors Inc… | $45,100 | 0.0% |
Exited
| Squarepoint Ops LLC | $45,597 | was 0.0% |
| ProShare Advisors LLC | $30,270 | was 0.0% |
| TD Waterhouse Canada Inc. | $608 | was 0.0% |
Full-market context: across ALL 13F filers (SEC structured data, Q1 2026): 140 holders, 56.36M shares, $150.50M reported. This is a different, older period than the tracked-universe figures above and the two are never mixed.
Frequently co-owned
What else this security's tracked holders most often hold — shared-ownership counts, not fundamental relationships.
Sep 17
SC 13D — Islet Management, LP
0.7% of class · View original SEC filing ↗
Aug 12
SC 13G — GAGNON SECURITIES LLC
Jul 31
SC 13G/A — PRIVATE MANAGEMENT GROUP INC
Provenance: Ownership from parsed 13F common-stock positions (tracked universe, comparable sets for changes); insider rows from Forms 3/4/5; stakes from Schedules 13D/13G; every filing links to its original on SEC EDGAR.
Reporting period: Q2 2026 ·
Methodology ·
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