Security record · archived quarter
BSX
Boston Scientific Corporation · Healthcare · Medical - Devices
182Tracked holders
-1Δ holders
1.07BShares held
$46.05BReported value
+3New positions
−3Exits
Momentum inputs (comparable managers):
holder breadth -0.5% ·
share flow -1.3% ·
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 | $46.05B | +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 ↗ |
| 2 | BlackRock ✦ (passive) | 129.68M | -1.6% | $5.53B | 0.1% | ▼ Trim | 5 | SEC ↗ |
| 3 | BlackRock ✦ (passive) | 129.68M | -1.6% | $5.53B | 0.1% | ▼ Trim | 5 | SEC ↗ |
| 4 | BlackRock ✦ (passive) | 129.68M | -1.6% | $5.53B | 0.1% | ▼ Trim | 5 | SEC ↗ |
| 5 | BlackRock ✦ (passive) | 129.68M | -1.6% | $5.53B | 0.1% | ▼ Trim | 5 | SEC ↗ |
| 6 | BlackRock ✦ (passive) | 129.68M | -1.6% | $5.53B | 0.1% | ▼ Trim | 5 | SEC ↗ |
| 7 | BlackRock ✦ (passive) | 129.68M | -1.6% | $5.53B | 0.1% | ▼ Trim | 5 | SEC ↗ |
| 8 | BlackRock ✦ (passive) | 129.68M | -1.6% | $5.53B | 0.1% | ▼ Trim | 5 | SEC ↗ |
| 9 | BlackRock ✦ (passive) | 129.68M | -1.6% | $5.53B | 0.1% | ▼ Trim | 5 | SEC ↗ |
| 10 | BlackRock ✦ (passive) | 129.68M | -1.6% | $5.53B | 0.1% | ▼ Trim | 5 | SEC ↗ |
| 11 | BlackRock ✦ (passive) | 129.68M | -1.6% | $5.53B | 0.1% | ▼ Trim | 5 | SEC ↗ |
| 12 | BlackRock ✦ (passive) | 129.68M | -1.6% | $5.53B | 0.1% | ▼ Trim | 5 | SEC ↗ |
| 13 | BlackRock ✦ (passive) | 129.68M | -1.6% | $5.53B | 0.1% | ▼ Trim | 5 | SEC ↗ |
| 14 | BlackRock ✦ (passive) | 129.68M | -1.6% | $5.53B | 0.1% | ▼ Trim | 5 | SEC ↗ |
| 15 | BlackRock ✦ (passive) | 129.68M | -1.6% | $5.53B | 0.1% | ▼ Trim | 5 | SEC ↗ |
| 16 | BlackRock ✦ (passive) | 129.68M | -1.6% | $5.53B | 0.1% | ▼ Trim | 5 | SEC ↗ |
| 17 | BlackRock ✦ (passive) | 129.68M | -1.6% | $5.53B | 0.1% | ▼ Trim | 5 | SEC ↗ |
| 18 | BlackRock ✦ (passive) | 129.68M | -1.6% | $5.53B | 0.1% | ▼ Trim | 5 | SEC ↗ |
| 19 | BlackRock ✦ (passive) | 129.68M | -1.6% | $5.53B | 0.1% | ▼ Trim | 5 | SEC ↗ |
| 20 | BlackRock ✦ (passive) | 129.68M | -1.6% | $5.53B | 0.1% | ▼ Trim | 5 | SEC ↗ |
| 21 | BlackRock ✦ (passive) | 129.68M | -1.6% | $5.53B | 0.1% | ▼ Trim | 5 | SEC ↗ |
| 22 | Vanguard Capital Management Llc | 97.09M | +0.7% | $4.14B | 0.1% | ▲ Add | 2 | SEC ↗ |
| 23 | State Street Global Advisors ✦ (passive) | 70.11M | +3.1% | $2.99B | 0.1% | ▲ Add | 7 | SEC ↗ |
| 24 | PRIMECAP Management ✦ | 50.52M | +55.3% | $2.16B | 1.3% | ▲ Add | 9 | SEC ↗ |
| 25 | Fidelity (FMR) ✦ | 45.70M | -38.4% | $1.95B | 0.1% | ▼ Trim | 5 | SEC ↗ |
| 26 | Fidelity (FMR) ✦ | 45.70M | -38.4% | $1.95B | 0.1% | ▼ Trim | 5 | SEC ↗ |
| 27 | Fidelity (FMR) ✦ | 45.70M | -38.4% | $1.95B | 0.1% | ▼ Trim | 5 | SEC ↗ |
| 28 | Fidelity (FMR) ✦ | 45.70M | -38.4% | $1.95B | 0.1% | ▼ Trim | 5 | SEC ↗ |
| 29 | Fidelity (FMR) ✦ | 45.70M | -38.4% | $1.95B | 0.1% | ▼ Trim | 5 | SEC ↗ |
| 30 | Fidelity (FMR) ✦ | 45.70M | -38.4% | $1.95B | 0.1% | ▼ Trim | 5 | SEC ↗ |
| 31 | Fidelity (FMR) ✦ | 45.70M | -38.4% | $1.95B | 0.1% | ▼ Trim | 5 | SEC ↗ |
| 32 | Massachusetts Financial Services Co… | 24.86M | +126.1% | $1.50B | 0.5% | ▲ Add | 3 | SEC ↗ |
| 33 | Massachusetts Financial Services Co… | 24.86M | +126.1% | $1.50B | 0.5% | ▲ Add | 3 | SEC ↗ |
| 34 | Massachusetts Financial Services Co… | 24.86M | +126.1% | $1.50B | 0.5% | ▲ Add | 3 | SEC ↗ |
| 35 | Massachusetts Financial Services Co… | 24.86M | +126.1% | $1.50B | 0.5% | ▲ Add | 3 | SEC ↗ |
| 36 | Massachusetts Financial Services Co… | 24.86M | +126.1% | $1.50B | 0.5% | ▲ Add | 3 | SEC ↗ |
| 37 | Massachusetts Financial Services Co… | 24.86M | +126.1% | $1.50B | 0.5% | ▲ Add | 3 | SEC ↗ |
| 38 | Massachusetts Financial Services Co… | 24.86M | +126.1% | $1.50B | 0.5% | ▲ Add | 3 | SEC ↗ |
| 39 | Massachusetts Financial Services Co… | 24.86M | +126.1% | $1.50B | 0.5% | ▲ Add | 3 | SEC ↗ |
| 40 | Geode Capital Management ✦ (passive) | 33.44M | +0.5% | $1.42B | 0.1% | ▲ Add | 9 | SEC ↗ |
| 41 | Geode Capital Management ✦ (passive) | 33.44M | +0.5% | $1.42B | 0.1% | ▲ Add | 9 | SEC ↗ |
| 42 | D. E. Shaw & Co. ✦ | 25.46M | +4.7% | $1.09B | 0.7% | ▲ Add | 9 | SEC ↗ |
| 43 | D. E. Shaw & Co. ✦ | 25.46M | +4.7% | $1.09B | 0.7% | ▲ Add | 9 | SEC ↗ |
| 44 | JPMorgan Chase ✦ | 23.91M | -28.3% | $1.04B | 0.1% | ▼ Trim | 4 | SEC ↗ |
| 45 | JPMorgan Chase ✦ | 23.91M | -28.3% | $1.04B | 0.1% | ▼ Trim | 4 | SEC ↗ |
| 46 | JPMorgan Chase ✦ | 23.91M | -28.3% | $1.04B | 0.1% | ▼ Trim | 4 | SEC ↗ |
| 47 | JPMorgan Chase ✦ | 23.91M | -28.3% | $1.04B | 0.1% | ▼ Trim | 4 | SEC ↗ |
| 48 | JPMorgan Chase ✦ | 23.91M | -28.3% | $1.04B | 0.1% | ▼ Trim | 4 | SEC ↗ |
| 49 | JPMorgan Chase ✦ | 23.91M | -28.3% | $1.04B | 0.1% | ▼ Trim | 4 | SEC ↗ |
| 50 | JPMorgan Chase ✦ | 23.91M | -28.3% | $1.04B | 0.1% | ▼ Trim | 4 | SEC ↗ |
| 51 | JPMorgan Chase ✦ | 23.91M | -28.3% | $1.04B | 0.1% | ▼ Trim | 4 | SEC ↗ |
| 52 | JPMorgan Chase ✦ | 23.91M | -28.3% | $1.04B | 0.1% | ▼ Trim | 4 | SEC ↗ |
| 53 | JPMorgan Chase ✦ | 23.91M | -28.3% | $1.04B | 0.1% | ▼ Trim | 4 | SEC ↗ |
| 54 | JPMorgan Chase ✦ | 23.91M | -28.3% | $1.04B | 0.1% | ▼ Trim | 4 | SEC ↗ |
| 55 | JPMorgan Chase ✦ | 23.91M | -28.3% | $1.04B | 0.1% | ▼ Trim | 4 | SEC ↗ |
| 56 | JPMorgan Chase ✦ | 23.91M | -28.3% | $1.04B | 0.1% | ▼ Trim | 4 | SEC ↗ |
| 57 | JPMorgan Chase ✦ | 23.91M | -28.3% | $1.04B | 0.1% | ▼ Trim | 4 | SEC ↗ |
| 58 | JPMorgan Chase ✦ | 23.91M | -28.3% | $1.04B | 0.1% | ▼ Trim | 4 | SEC ↗ |
| 59 | JPMorgan Chase ✦ | 23.91M | -28.3% | $1.04B | 0.1% | ▼ Trim | 4 | SEC ↗ |
| 60 | JPMorgan Chase ✦ | 23.91M | -28.3% | $1.04B | 0.1% | ▼ Trim | 4 | SEC ↗ |
| 61 | JPMorgan Chase ✦ | 23.91M | -28.3% | $1.04B | 0.1% | ▼ Trim | 4 | SEC ↗ |
| 62 | JPMorgan Chase ✦ | 23.91M | -28.3% | $1.04B | 0.1% | ▼ Trim | 4 | SEC ↗ |
| 63 | Arrowstreet Capital ✦ | 23.29M | +67.7% | $994.18M | 0.4% | ▲ Add | 9 | SEC ↗ |
| 64 | Norges Bank ✦ (passive) | 21.17M | New | $903.54M | 0.1% | New | 1 | SEC ↗ |
| 65 | Two Sigma Investments ✦ | 19.36M | +105.7% | $826.24M | 0.6% | ▲ Add | 9 | SEC ↗ |
| 66 | Morgan Stanley ✦ | 18.95M | -14.9% | $808.66M | 0.0% | ▼ Trim | 4 | SEC ↗ |
| 67 | Morgan Stanley ✦ | 18.95M | -14.9% | $808.66M | 0.0% | ▼ Trim | 4 | SEC ↗ |
| 68 | Morgan Stanley ✦ | 18.95M | -14.9% | $808.66M | 0.0% | ▼ Trim | 4 | SEC ↗ |
| 69 | Morgan Stanley ✦ | 18.95M | -14.9% | $808.66M | 0.0% | ▼ Trim | 4 | SEC ↗ |
| 70 | Morgan Stanley ✦ | 18.95M | -14.9% | $808.66M | 0.0% | ▼ Trim | 4 | SEC ↗ |
| 71 | Morgan Stanley ✦ | 18.95M | -14.9% | $808.66M | 0.0% | ▼ Trim | 4 | SEC ↗ |
| 72 | Morgan Stanley ✦ | 18.95M | -14.9% | $808.66M | 0.0% | ▼ Trim | 4 | SEC ↗ |
| 73 | Morgan Stanley ✦ | 18.95M | -14.9% | $808.66M | 0.0% | ▼ Trim | 4 | SEC ↗ |
| 74 | Morgan Stanley ✦ | 18.95M | -14.9% | $808.66M | 0.0% | ▼ Trim | 4 | SEC ↗ |
| 75 | Morgan Stanley ✦ | 18.95M | -14.9% | $808.66M | 0.0% | ▼ Trim | 4 | SEC ↗ |
| 76 | Morgan Stanley ✦ | 18.95M | -14.9% | $808.66M | 0.0% | ▼ Trim | 4 | SEC ↗ |
| 77 | Morgan Stanley ✦ | 18.95M | -14.9% | $808.66M | 0.0% | ▼ Trim | 4 | SEC ↗ |
| 78 | Morgan Stanley ✦ | 18.95M | -14.9% | $808.66M | 0.0% | ▼ Trim | 4 | SEC ↗ |
| 79 | Morgan Stanley ✦ | 18.95M | -14.9% | $808.66M | 0.0% | ▼ Trim | 4 | SEC ↗ |
| 80 | Morgan Stanley ✦ | 18.95M | -14.9% | $808.66M | 0.0% | ▼ Trim | 4 | SEC ↗ |
| 81 | Morgan Stanley ✦ | 18.95M | -14.9% | $808.66M | 0.0% | ▼ Trim | 4 | SEC ↗ |
| 82 | Morgan Stanley ✦ | 18.95M | -14.9% | $808.66M | 0.0% | ▼ Trim | 4 | SEC ↗ |
| 83 | Morgan Stanley ✦ | 18.95M | -14.9% | $808.66M | 0.0% | ▼ Trim | 4 | SEC ↗ |
| 84 | Morgan Stanley ✦ | 18.95M | -14.9% | $808.66M | 0.0% | ▼ Trim | 4 | SEC ↗ |
| 85 | Morgan Stanley ✦ | 18.95M | -14.9% | $808.66M | 0.0% | ▼ Trim | 4 | SEC ↗ |
| 86 | Morgan Stanley ✦ | 18.95M | -14.9% | $808.66M | 0.0% | ▼ Trim | 4 | SEC ↗ |
| 87 | Goldman Sachs Group ✦ | 16.95M | -10.2% | $723.61M | 0.1% | ▼ Trim | 4 | SEC ↗ |
| 88 | Goldman Sachs Group ✦ | 16.95M | -10.2% | $723.61M | 0.1% | ▼ Trim | 4 | SEC ↗ |
| 89 | Goldman Sachs Group ✦ | 16.95M | -10.2% | $723.61M | 0.1% | ▼ Trim | 4 | SEC ↗ |
| 90 | Goldman Sachs Group ✦ | 16.95M | -10.2% | $723.61M | 0.1% | ▼ Trim | 4 | SEC ↗ |
| 91 | Goldman Sachs Group ✦ | 16.95M | -10.2% | $723.61M | 0.1% | ▼ Trim | 4 | SEC ↗ |
| 92 | Goldman Sachs Group ✦ | 16.95M | -10.2% | $723.61M | 0.1% | ▼ Trim | 4 | SEC ↗ |
| 93 | Goldman Sachs Group ✦ | 16.95M | -10.2% | $723.61M | 0.1% | ▼ Trim | 4 | SEC ↗ |
| 94 | Goldman Sachs Group ✦ | 16.95M | -10.2% | $723.61M | 0.1% | ▼ Trim | 4 | SEC ↗ |
| 95 | Capital World Investors ✦ | 16.81M | +9.8% | $717.60M | 0.1% | ▲ Add | 9 | SEC ↗ |
| 96 | UBS Group AG | 16.35M | +10.3% | $697.92M | 0.1% | ▲ Add | 3 | SEC ↗ |
| 97 | UBS Group AG | 16.35M | +10.3% | $697.92M | 0.1% | ▲ Add | 3 | SEC ↗ |
| 98 | UBS Group AG | 16.35M | +10.3% | $697.92M | 0.1% | ▲ Add | 3 | SEC ↗ |
| 99 | UBS Group AG | 16.35M | +10.3% | $697.92M | 0.1% | ▲ Add | 3 | SEC ↗ |
| 100 | UBS Group AG | 16.35M | +10.3% | $697.92M | 0.1% | ▲ 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.
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 ·
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