Security record
BSX
Boston Scientific Corporation · Healthcare · Medical - Devices
182Tracked holders
-1Δ holders
1.07BShares held
$45.95BReported value
+3New positions
−3Exits
Momentum inputs (comparable managers):
holder breadth -0.5% ·
share flow -1.4% ·
net new positions 0.0%
— formula
Broad distribution — falling shares and fewer 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 | 182 | -1 | 1.07B | $45.95B | +3 | −3 |
| Q1 2026 | 185 | -2 | 1.08B | $67.75B | +2 | −5 |
| Q4 2025 | 186 | +1 | 1.13B | $107.60B | +2 | — |
| Q3 2025 | 28 | 0 | 719.46M | $70.18B | — | −1 |
| Q2 2025 | 26 | -1 | 668.30M | $71.71B | — | −1 |
| Q1 2025 | 24 | +1 | 275.71M | $27.75B | +1 | — |
| Q4 2024 | 23 | -1 | 268.54M | $23.93B | — | −1 |
| Q3 2024 | 23 | +2 | 200.54M | $16.75B | +2 | — |
| Q2 2024 | 21 | — | 195.84M | $15.04B | — | — |
Who holds it · Q2 2026
| # | Manager | Shares | Δ shares | Value | Their weight | Held | ||
|---|---|---|---|---|---|---|---|---|
| 1 | BlackRock ✦ (passive) | 129.68M | -1.6% | $5.53B | 0.1% | ▼ Trim | 5 | SEC ↗ ×21 |
| 2 | Vanguard Capital Management Llc | 97.09M | +0.7% | $4.14B | 0.1% | ▲ Add | 2 | SEC ↗ |
| 3 | State Street Global Advisors ✦ (passive) | 70.11M | +3.1% | $2.99B | 0.1% | ▲ Add | 7 | SEC ↗ |
| 4 | PRIMECAP Management ✦ | 50.52M | +55.3% | $2.16B | 1.3% | ▲ Add | 9 | SEC ↗ |
| 5 | Fidelity (FMR) ✦ | 45.70M | -38.4% | $1.95B | 0.1% | ▼ Trim | 5 | SEC ↗ ×7 |
| 6 | Massachusetts Financial Services Co… | 24.86M | +126.1% | $1.50B | 0.5% | ▲ Add | 3 | SEC ↗ ×8 |
| 7 | Geode Capital Management ✦ (passive) | 33.44M | +0.5% | $1.42B | 0.1% | ▲ Add | 9 | SEC ↗ ×2 |
| 8 | D. E. Shaw & Co. ✦ | 25.46M | +4.7% | $1.09B | 0.7% | ▲ Add | 9 | SEC ↗ ×2 |
| 9 | JPMorgan Chase ✦ | 23.91M | -28.3% | $1.04B | 0.1% | ▼ Trim | 4 | SEC ↗ ×19 |
| 10 | Arrowstreet Capital ✦ | 23.29M | +67.7% | $994.18M | 0.4% | ▲ Add | 9 | SEC ↗ |
| 11 | Norges Bank ✦ (passive) | 21.17M | New | $903.54M | 0.1% | New | 1 | SEC ↗ |
| 12 | Two Sigma Investments ✦ | 19.36M | +105.7% | $826.24M | 0.6% | ▲ Add | 9 | SEC ↗ |
| 13 | Morgan Stanley ✦ | 18.95M | -14.9% | $808.66M | 0.0% | ▼ Trim | 4 | SEC ↗ ×21 |
| 14 | Goldman Sachs Group ✦ | 16.95M | -10.2% | $723.61M | 0.1% | ▼ Trim | 4 | SEC ↗ ×8 |
| 15 | Capital World Investors ✦ | 16.81M | +9.8% | $717.60M | 0.1% | ▲ Add | 9 | SEC ↗ |
| 16 | UBS Group AG | 16.35M | +10.3% | $697.92M | 0.1% | ▲ Add | 3 | SEC ↗ ×10 |
| 17 | Wellington Management ✦ | 15.30M | -18.8% | $653.08M | 0.1% | ▼ Trim | 9 | SEC ↗ ×5 |
| 18 | Amundi | 14.30M | +1.2% | $610.16M | 0.1% | ▲ Add | 3 | SEC ↗ ×7 |
| 19 | Capital Research Global Investors | 14.18M | +100.3% | $605.26M | 0.1% | ▲ Add | 3 | SEC ↗ |
| 20 | Invesco Ltd. | 13.80M | +52.5% | $589.02M | 0.0% | ▲ Add | 3 | SEC ↗ ×16 |
| 21 | Franklin Resources Inc | 13.77M | -5.0% | $587.80M | 0.1% | ▼ Trim | 3 | SEC ↗ ×11 |
| 22 | UBS AM, a distinct business unit of… | 13.09M | -3.1% | $558.74M | 0.1% | ▼ Trim | 3 | SEC ↗ ×12 |
| 23 | Bank Of America Corp /De/ | 13.03M | -42.8% | $556.03M | 0.0% | ▼ Trim | 3 | SEC ↗ ×8 |
| 24 | Northern Trust Corp | 12.96M | -3.1% | $553.33M | 0.1% | ▼ Trim | 3 | SEC ↗ ×9 |
| 25 | FIL Ltd | 12.33M | +283.7% | $526.33M | 0.4% | ▲ Add | 3 | SEC ↗ ×2 |
| 26 | Jane Street Group, Llc | 12.09M | +199.8% | $515.92M | 0.3% | ▲ Add | 3 | SEC ↗ ×3 |
| 27 | Legal & General Group Plc | 10.12M | -4.5% | $431.89M | 0.1% | ▼ Trim | 3 | SEC ↗ ×3 |
| 28 | AQR Capital Management ✦ | 9.68M | +84.8% | $413.22M | 0.1% | ▲ Add | 9 | SEC ↗ ×10 |
| 29 | Canada Pension Plan Investment Board | 9.26M | +15.3% | $395.32M | 0.2% | ▲ Add | 3 | SEC ↗ |
| 30 | DZ BANK AG Deutsche Zentral… | 9.23M | -30.2% | $393.84M | 0.3% | ▼ Trim | 3 | SEC ↗ ×3 |
| 31 | Charles Schwab Investment… | 9.22M | +0.6% | $393.64M | 0.1% | ▲ Add | 3 | SEC ↗ ×2 |
| 32 | Qube Research & Technologies Ltd | 8.94M | +60.6% | $381.72M | 0.4% | ▲ Add | 3 | SEC ↗ |
| 33 | Nuveen, LLC | 8.70M | -25.9% | $371.11M | 0.1% | ▼ Trim | 3 | SEC ↗ ×4 |
| 34 | Assenagon Asset Management S.A. | 8.35M | -17.0% | $356.25M | 0.2% | ▼ Trim | 3 | SEC ↗ ×2 |
| 35 | Royal Bank Of Canada | 8.10M | +29.1% | $345.74M | 0.1% | ▲ Add | 3 | SEC ↗ ×14 |
| 36 | Bank of New York Mellon Corp | 7.94M | -16.8% | $339.03M | 0.1% | ▼ Trim | 3 | SEC ↗ ×21 |
| 37 | Bnp Paribas Financial Markets | 7.62M | +49.4% | $325.24M | 0.2% | ▲ Add | 3 | SEC ↗ |
| 38 | T. Rowe Price ✦ | 7.07M | -10.2% | $301.77M | 0.0% | ▼ Trim | 9 | SEC ↗ ×2 |
| 39 | Deutsche Bank Ag\ | 5.96M | -10.5% | $254.25M | 0.1% | ▼ Trim | 3 | SEC ↗ ×17 |
| 40 | Ensign Peak Advisors, Inc | 5.88M | +30.5% | $251.02M | 0.4% | ▲ Add | 3 | SEC ↗ |
| 41 | Dimensional Fund Advisors Lp | 5.82M | -4.5% | $248.65M | 0.0% | ▼ Trim | 3 | SEC ↗ ×5 |
| 42 | BNP Paribas Asset Management… | 5.38M | -22.8% | $229.69M | 0.2% | ▼ Trim | 3 | SEC ↗ ×6 |
| 43 | Lazard Asset Management Llc | 5.34M | +9.5% | $228.07M | 0.3% | ▲ Add | 3 | SEC ↗ ×3 |
| 44 | Ameriprise Financial Inc | 5.13M | -7.9% | $219.10M | 0.0% | ▼ Trim | 3 | SEC ↗ ×7 |
| 45 | Clearbridge Investments, LLC | 5.13M | +125.1% | $218.98M | 0.2% | ▲ Add | 3 | SEC ↗ |
| 46 | Citadel Advisors ✦ | 4.99M | +18.3% | $212.88M | 0.1% | ▲ Add | 9 | SEC ↗ ×2 |
| 47 | Millennium Management ✦ | 5.44M | +25.4% | $210.74M | 0.1% | ▲ Add | 9 | SEC ↗ |
| 48 | Schroder Investment Management Group | 4.71M | -35.1% | $200.95M | 0.1% | ▼ Trim | 2 | SEC ↗ ×7 |
| 49 | Barclays Plc | 4.58M | -8.8% | $195.66M | 0.1% | ▼ Trim | 3 | SEC ↗ ×5 |
| 50 | 1832 Asset Management L.P. | 4.56M | -37.2% | $194.49M | 0.2% | ▼ Trim | 3 | SEC ↗ |
| 51 | Swiss National Bank | 4.19M | -3.6% | $178.91M | 0.1% | ▼ Trim | 3 | SEC ↗ |
| 52 | National Pension Service | 3.96M | +7.0% | $169.00M | 0.1% | ▲ Add | 3 | SEC ↗ |
| 53 | Mitsubishi UFJ Asset Management… | 3.62M | +7.5% | $154.39M | 0.1% | ▲ Add | 3 | SEC ↗ |
| 54 | Hsbc Holdings Plc | 3.53M | +3.9% | $150.60M | 0.1% | ▲ Add | 3 | SEC ↗ ×10 |
| 55 | Ninety One UK Ltd | 3.50M | -52.1% | $149.46M | 0.3% | ▼ Trim | 3 | SEC ↗ |
| 56 | Sumitomo Mitsui Trust Group, Inc. | 3.43M | +0.1% | $146.30M | 0.1% | ▲ Add | 3 | SEC ↗ |
| 57 | Man Group plc | 3.23M | -13.3% | $137.65M | 0.3% | ▼ Trim | 3 | SEC ↗ ×3 |
| 58 | Caisse De Depot Et Placement Du… | 3.12M | +110.1% | $133.18M | 0.2% | ▲ Add | 3 | SEC ↗ |
| 59 | Aberdeen Group plc | 3.07M | +10.9% | $130.88M | 0.2% | ▲ Add | 3 | SEC ↗ ×3 |
| 60 | Wells Fargo & Company/Mn | 3.05M | +2.7% | $130.24M | 0.0% | ▲ Add | 3 | SEC ↗ ×4 |
| 61 | Russell Investments Group, Ltd. | 2.90M | +24.9% | $123.68M | 0.1% | ▲ Add | 3 | SEC ↗ ×21 |
| 62 | Manufacturers Life Insurance… | 2.70M | +2.8% | $115.35M | 0.1% | ▲ Add | 3 | SEC ↗ |
| 63 | Rhumbline Advisers | 2.64M | -1.2% | $112.75M | 0.1% | ▼ Trim | 3 | SEC ↗ |
| 64 | Nordea Investment Management Ab | 2.61M | +96.3% | $110.94M | 0.1% | ▲ Add | 3 | SEC ↗ ×4 |
| 65 | Citigroup Inc | 2.58M | +63.8% | $110.22M | 0.1% | ▲ Add | 3 | SEC ↗ ×4 |
| 66 | Marshall Wace ✦ | 2.41M | -33.1% | $103.04M | 0.1% | ▼ Trim | 9 | SEC ↗ ×3 |
| 67 | Renaissance Technologies ✦ | 2.41M | -23.5% | $102.94M | 0.1% | ▼ Trim | 6 | SEC ↗ |
| 68 | Pictet Asset Management Holding SA | 2.39M | -53.3% | $102.16M | 0.1% | ▼ Trim | 3 | SEC ↗ |
| 69 | Alliancebernstein L.P. | 1.46M | -10.5% | $91.34M | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 70 | Neuberger Berman Group LLC | 2.13M | -69.9% | $90.76M | 0.1% | ▼ Trim | 3 | SEC ↗ ×2 |
| 71 | California Public Employees… | 2.05M | -9.4% | $87.40M | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 72 | Raymond James Financial Inc | 1.92M | -36.5% | $82.09M | 0.0% | ▼ Trim | 3 | SEC ↗ ×3 |
| 73 | Stifel Financial Corp | 1.76M | -11.0% | $75.16M | 0.1% | ▼ Trim | 3 | SEC ↗ ×6 |
| 74 | New York State Common Retirement… | 1.73M | -4.5% | $73.92M | 0.1% | ▼ Trim | 3 | SEC ↗ |
| 75 | First Manhattan Co. Llc. | 1.70M | -65.4% | $72.44M | 0.2% | ▼ Trim | 3 | SEC ↗ |
| 76 | Principal Financial Group Inc | 1.68M | -0.7% | $71.50M | 0.0% | ▼ Trim | 3 | SEC ↗ ×2 |
| 77 | Adage Capital Partners ✦ | 1.67M | -64.0% | $71.28M | 0.1% | ▼ Trim | 9 | SEC ↗ |
| 78 | Susquehanna International Group, Llp | 1.66M | +60.9% | $70.93M | 0.1% | ▲ Add | 3 | SEC ↗ ×2 |
| 79 | Credit Agricole S A | 1.65M | -18.5% | $70.32M | 0.2% | ▼ Trim | 3 | SEC ↗ ×5 |
| 80 | Squarepoint Ops LLC | 1.62M | +2.2% | $69.35M | 0.1% | ▲ Add | 3 | SEC ↗ |
| 81 | Hrt Financial Lp | 1.59M | +16.7% | $67.67M | 0.1% | ▲ Add | 3 | SEC ↗ ×3 |
| 82 | Tudor Investment Corp Et Al | 1.48M | +133.6% | $63.07M | 0.3% | ▲ Add | 3 | SEC ↗ |
| 83 | Connor, Clark & Lunn Investment… | 1.47M | +81.7% | $62.62M | 0.1% | ▲ Add | 3 | SEC ↗ ×2 |
| 84 | Envestnet Asset Management Inc | 1.46M | -13.5% | $62.26M | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 85 | Aviva Plc | 1.43M | -3.8% | $61.09M | 0.1% | ▼ Trim | 3 | SEC ↗ |
| 86 | Pnc Financial Services Group, Inc. | 1.39M | +19.7% | $59.22M | 0.0% | ▲ Add | 3 | SEC ↗ ×8 |
| 87 | Bank Of Montreal /Can/ | 1.37M | +3.8% | $58.66M | 0.0% | ▲ Add | 3 | SEC ↗ ×9 |
| 88 | Jones Financial Companies Lllp | 1.29M | -15.6% | $57.19M | 0.0% | ▼ Trim | 3 | SEC ↗ ×2 |
| 89 | Bank Of Nova Scotia | 1.32M | -42.5% | $56.50M | 0.1% | ▼ Trim | 3 | SEC ↗ ×2 |
| 90 | State Board Of Administration Of… | 1.28M | -1.1% | $54.42M | 0.1% | ▼ Trim | 3 | SEC ↗ |
| 91 | Cerity Partners LLC | 1.25M | -1.0% | $53.39M | 0.1% | ▼ Trim | 3 | SEC ↗ ×3 |
| 92 | Storebrand Asset Management As | 1.23M | +3.0% | $52.62M | 0.1% | ▲ Add | 3 | SEC ↗ |
| 93 | Nomura Asset Management Co Ltd | 1.23M | +20.7% | $52.30M | 0.1% | ▲ Add | 3 | SEC ↗ ×5 |
| 94 | Toronto Dominion Bank | 1.19M | +164.8% | $50.65M | 0.1% | ▲ Add | 3 | SEC ↗ ×3 |
| 95 | Td Asset Management Inc | 1.18M | -34.6% | $50.19M | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 96 | Parnassus Investments, Llc | 1.17M | -85.3% | $50.14M | 0.1% | ▼ Trim | 3 | SEC ↗ |
| 97 | Universal- Beteiligungs- und… | 1.10M | -28.5% | $47.24M | 0.1% | ▼ Trim | 3 | SEC ↗ |
| 98 | LPL Financial LLC | 1.05M | +24.1% | $44.91M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 99 | Allianz Asset Management GmbH | 1.03M | -57.0% | $43.95M | 0.0% | ▼ Trim | 3 | SEC ↗ ×4 |
| 100 | Victory Capital Management Inc | 995.70K | +100.3% | $42.50M | 0.0% | ▲ Add | 3 | SEC ↗ |
“Their weight” = the position's share of that manager's reported 13F equity value — the conviction measure. ✦ = curated manager.
New buyers
| Norges Bank | $903.54M | 0.1% |
Exited
| Jennison Associates Llc | $56.34M | was 0.0% |
| Lone Pine Capital | $6.57M | was 0.1% |
| Fayez Sarofim & Co | $336,905 | was 0.0% |
Full-market context: across ALL 13F filers (SEC structured data, Q1 2026): 1,653 holders, 1.31B shares, $78.98B 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.
Open-market purchases (P)
Aug 25
Morano Susan E
Director · 2.04K sh @ 49.22 · $100,408
Open-market sales (S)
No open-market insider sales in our coverage window.
Awards, exercises and tax withholding are never counted as buys or sales here. Methodology
Aug 06
SC 13G/A — FMR LLC
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 ·
Get this via the API