Security record · archived quarter
OSUR
name pending profile ingest
59Tracked holders
-1Δ holders
33.90MShares held
$82.04MReported value
+0New positions
−1Exits
Momentum inputs (comparable managers):
holder breadth -1.7% ·
share flow -11.5% ·
net new positions -1.7%
· formula
Broad distribution: falling shares and fewer holders
All ownership figures: tracked 13F managers only, common-stock positions, reporting period Q4 2025
Ownership over time
| Quarter | Holders | Δ | Shares | Reported value | New | Exits |
|---|---|---|---|---|---|---|
| Q2 2026 | 66 | +5 | 30.45M | $135.70M | +8 | −4 |
| Q1 2026 | 64 | +5 | 30.89M | $92.54M | +7 | −2 |
| Q4 2025 | 59 | -1 | 33.90M | $82.04M | n/a | −1 |
| Q3 2025 | 15 | -1 | 25.02M | $80.33M | n/a | −1 |
| Q2 2025 | 13 | 0 | 20.32M | $60.97M | n/a | n/a |
| Q1 2025 | 10 | -1 | 11.46M | $38.61M | n/a | −1 |
| Q4 2024 | 11 | +2 | 12.43M | $44.86M | +2 | n/a |
| Q3 2024 | 8 | -3 | 9.07M | $38.71M | n/a | −3 |
| Q2 2024 | 11 | n/a | 9.46M | $40.30M | n/a | n/a |
Who holds it · Q4 2025
| # | Manager | Shares | Δ shares | Value | Their weight | Held | ||
|---|---|---|---|---|---|---|---|---|
| 1 | BlackRock ✦ (passive) | 6.45M | -3.9% | $15.60M | 0.0% | ▼ Trim | 3 | SEC ↗ ×7 |
| 2 | The Vanguard Group ✦ (passive) | 4.10M | -0.8% | $9.93M | 0.0% | ▼ Trim | 3 | SEC ↗ ×3 |
| 3 | Neuberger Berman Group LLC | 3.98M | n/a | $9.65M | 0.0% | n/c | 1 | SEC ↗ ×2 |
| 4 | Dimensional Fund Advisors Lp | 3.26M | n/a | $7.89M | 0.0% | n/c | 1 | SEC ↗ ×4 |
| 5 | Renaissance Technologies ✦ | 2.15M | -5.1% | $5.19M | 0.0% | ▼ Trim | 7 | SEC ↗ |
| 6 | Geode Capital Management ✦ (passive) | 1.75M | -6.3% | $4.24M | 0.0% | ▼ Trim | 7 | SEC ↗ ×2 |
| 7 | D. E. Shaw & Co. ✦ | 1.67M | -1.4% | $4.03M | 0.0% | ▼ Trim | 7 | SEC ↗ ×2 |
| 8 | State Street Global Advisors ✦ (passive) | 1.60M | -0.8% | $3.88M | 0.0% | ▼ Trim | 5 | SEC ↗ |
| 9 | Wells Fargo & Company/Mn | 877.03K | n/a | $2.12M | 0.0% | n/c | 1 | SEC ↗ ×3 |
| 10 | Millennium Management ✦ | 862.40K | -59.2% | $2.09M | 0.0% | ▼ Trim | 7 | SEC ↗ |
| 11 | UBS Group AG | 679.81K | n/a | $1.65M | 0.0% | n/c | 1 | SEC ↗ ×3 |
| 12 | Charles Schwab Investment… | 622.08K | n/a | $1.51M | 0.0% | n/c | 1 | SEC ↗ |
| 13 | Northern Trust Corp | 575.51K | n/a | $1.39M | 0.0% | n/c | 1 | SEC ↗ ×5 |
| 14 | Morgan Stanley ✦ | 529.26K | +63.5% | $1.28M | 0.0% | ▲ Add | 2 | SEC ↗ ×8 |
| 15 | JPMorgan Chase ✦ | 397.08K | -87.4% | $960,945 | 0.0% | ▼ Trim | 2 | SEC ↗ ×4 |
| 16 | Citadel Advisors ✦ | 393.69K | +44.8% | $952,737 | 0.0% | ▲ Add | 7 | SEC ↗ |
| 17 | Jane Street Group, Llc | 357.50K | n/a | $865,141 | 0.0% | n/c | 1 | SEC ↗ ×3 |
| 18 | Goldman Sachs Group ✦ | 317.07K | -33.7% | $767,300 | 0.0% | ▼ Trim | 2 | SEC ↗ ×3 |
| 19 | Hsbc Holdings Plc | 270.18K | n/a | $649,788 | 0.0% | n/c | 1 | SEC ↗ ×2 |
| 20 | Ameriprise Financial Inc | 263.61K | n/a | $637,929 | 0.0% | n/c | 1 | SEC ↗ |
| 21 | AQR Capital Management ✦ | 221.93K | -6.8% | $537,078 | 0.0% | ▼ Trim | 7 | SEC ↗ ×4 |
| 22 | Qube Research & Technologies Ltd | 216.94K | n/a | $524,997 | 0.0% | n/c | 1 | SEC ↗ |
| 23 | Bank of New York Mellon Corp | 212.86K | n/a | $515,127 | 0.0% | n/c | 1 | SEC ↗ ×3 |
| 24 | Barclays Plc | 208.62K | n/a | $504,872 | 0.0% | n/c | 1 | SEC ↗ |
| 25 | American Century Companies Inc | 202.96K | n/a | $491,173 | 0.0% | n/c | 1 | SEC ↗ |
| 26 | Tudor Investment Corp Et Al | 186.90K | n/a | $452,300 | 0.0% | n/c | 1 | SEC ↗ |
| 27 | Sei Investments Co | 184.23K | n/a | $445,802 | 0.0% | n/c | 1 | SEC ↗ ×2 |
| 28 | T. Rowe Price ✦ | 183.28K | +50.2% | $444,000 | 0.0% | ▲ Add | 7 | SEC ↗ |
| 29 | Invesco Ltd. | 161.18K | n/a | $390,061 | 0.0% | n/c | 1 | SEC ↗ ×3 |
| 30 | Nuveen, LLC | 158.43K | n/a | $383,395 | 0.0% | n/c | 1 | SEC ↗ ×2 |
| 31 | Bank Of America Corp /De/ | 132.43K | n/a | $320,479 | 0.0% | n/c | 1 | SEC ↗ ×4 |
| 32 | Alliancebernstein L.P. | 130.22K | n/a | $315,123 | 0.0% | n/c | 1 | SEC ↗ |
| 33 | Deutsche Bank Ag\ | 93.81K | n/a | $227,011 | 0.0% | n/c | 1 | SEC ↗ ×2 |
| 34 | Rhumbline Advisers | 90.69K | n/a | $219,470 | 0.0% | n/c | 1 | SEC ↗ |
| 35 | Assenagon Asset Management S.A. | 48.41K | n/a | $117,150 | 0.0% | n/c | 1 | SEC ↗ |
| 36 | Russell Investments Group, Ltd. | 43.64K | n/a | $105,598 | 0.0% | n/c | 1 | SEC ↗ ×5 |
| 37 | State Board Of Administration Of… | 34.34K | n/a | $83,098 | 0.0% | n/c | 1 | SEC ↗ |
| 38 | MIRAE ASSET GLOBAL ETFS HOLDINGS… | 32.92K | n/a | $79,671 | 0.0% | n/c | 1 | SEC ↗ |
| 39 | Susquehanna International Group, Llp | 29.21K | n/a | $70,700 | 0.0% | n/c | 1 | SEC ↗ |
| 40 | Manufacturers Life Insurance… | 27.26K | n/a | $65,974 | 0.0% | n/c | 1 | SEC ↗ |
| 41 | HighTower Advisors, LLC | 20.14K | n/a | $48,744 | 0.0% | n/c | 1 | SEC ↗ |
| 42 | Bnp Paribas Financial Markets | 19.68K | n/a | $47,616 | 0.0% | n/c | 1 | SEC ↗ |
| 43 | LPL Financial LLC | 19.49K | n/a | $47,171 | 0.0% | n/c | 1 | SEC ↗ |
| 44 | New York State Common Retirement… | 19.31K | n/a | $46,723 | 0.0% | n/c | 1 | SEC ↗ |
| 45 | Voya Investment Management Llc | 15.28K | n/a | $36,978 | 0.0% | n/c | 1 | SEC ↗ |
| 46 | Squarepoint Ops LLC | 13.61K | n/a | $32,934 | 0.0% | n/c | 1 | SEC ↗ |
| 47 | ProShare Advisors LLC | 12.97K | n/a | $31,378 | 0.0% | n/c | 1 | SEC ↗ |
| 48 | Pnc Financial Services Group, Inc. | 12.40K | n/a | $30,015 | 0.0% | n/c | 1 | SEC ↗ ×3 |
| 49 | Grantham, Mayo, Van Otterloo & Co.… | 12.33K | n/a | $29,841 | 0.0% | n/c | 1 | SEC ↗ |
| 50 | Osaic Holdings, Inc. | 11.27K | n/a | $27,261 | 0.0% | n/c | 1 | SEC ↗ ×2 |
| 51 | Fidelity (FMR) ✦ | 10.91K | +8.2% | $26,405 | 0.0% | ▲ Add | 3 | SEC ↗ ×2 |
| 52 | Legal & General Group Plc | 6.75K | n/a | $16,335 | 0.0% | n/c | 1 | SEC ↗ |
| 53 | Royal Bank Of Canada | 6.02K | n/a | $15,000 | 0.0% | n/c | 1 | SEC ↗ ×3 |
| 54 | California State Teachers… | 4.36K | n/a | $10,556 | 0.0% | n/c | 1 | SEC ↗ |
| 55 | Rockefeller Capital Management L.P. | 3.47K | n/a | $8,405 | 0.0% | n/c | 1 | SEC ↗ ×2 |
| 56 | Simplex Trading, Llc | 2.39K | n/a | $5,791 | 0.0% | n/c | 1 | SEC ↗ |
| 57 | Citigroup Inc | 1.61K | n/a | $3,887 | 0.0% | n/c | 1 | SEC ↗ |
| 58 | Optiver Holding B.V. | 964 | n/a | $2,333 | 0.0% | n/c | 1 | SEC ↗ |
| 59 | Cwm, Llc | 964 | n/a | $2,000 | 0.0% | n/c | 1 | SEC ↗ |
“Their weight” = the position's share of that manager's reported 13F equity value: the conviction measure. ✦ = curated manager.
New buyers
| No new tracked buyers this quarter. |
Exited
| Two Sigma Investments | $138,993 | 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: Q4 2025 ·
Methodology ·
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