Security record · archived quarter
BSX
Boston Scientific Corporation · Healthcare · Medical - Devices
23Tracked holders
-1Δ holders
268.54MShares held
$23.93BReported value
+0New positions
−1Exits
Momentum inputs (comparable managers):
holder breadth -4.2% ·
share flow +1.5% ·
net new positions -4.3%
— formula
Concentrated accumulation — rising shares among fewer holders
All ownership figures: tracked 13F managers only, common-stock positions, reporting period Q4 2024
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 · Q4 2024
| # | Manager | Shares | Δ shares | Value | Their weight | Held | ||
|---|---|---|---|---|---|---|---|---|
| 1 | State Street Global Advisors ✦ (passive) | 63.96M | — | $5.71B | 0.2% | n/c | 1 | SEC ↗ |
| 2 | PRIMECAP Management ✦ | 36.93M | -2.4% | $3.30B | 2.6% | ▼ Trim | 3 | SEC ↗ |
| 3 | Wellington Management ✦ | 36.17M | +10.2% | $3.23B | 0.6% | ▲ Add | 3 | SEC ↗ |
| 4 | Wellington Management ✦ | 36.17M | +10.2% | $3.23B | 0.6% | ▲ Add | 3 | SEC ↗ |
| 5 | Wellington Management ✦ | 36.17M | +10.2% | $3.23B | 0.6% | ▲ Add | 3 | SEC ↗ |
| 6 | Wellington Management ✦ | 36.17M | +10.2% | $3.23B | 0.6% | ▲ Add | 3 | SEC ↗ |
| 7 | Wellington Management ✦ | 36.17M | +10.2% | $3.23B | 0.6% | ▲ Add | 3 | SEC ↗ |
| 8 | Wellington Management ✦ | 36.17M | +10.2% | $3.23B | 0.6% | ▲ Add | 3 | SEC ↗ |
| 9 | Wellington Management ✦ | 36.17M | +10.2% | $3.23B | 0.6% | ▲ Add | 3 | SEC ↗ |
| 10 | Wellington Management ✦ | 36.17M | +10.2% | $3.23B | 0.6% | ▲ Add | 3 | SEC ↗ |
| 11 | Wellington Management ✦ | 36.17M | +10.2% | $3.23B | 0.6% | ▲ Add | 3 | SEC ↗ |
| 12 | Geode Capital Management ✦ (passive) | 30.63M | +3.5% | $2.73B | 0.2% | ▲ Add | 3 | SEC ↗ |
| 13 | Geode Capital Management ✦ (passive) | 30.63M | +3.5% | $2.73B | 0.2% | ▲ Add | 3 | SEC ↗ |
| 14 | Capital World Investors ✦ | 27.90M | +28.7% | $2.49B | 0.4% | ▲ Add | 3 | SEC ↗ |
| 15 | Norges Bank ✦ (passive) | 19.73M | +3.4% | $1.76B | 0.2% | ▲ Add | 3 | SEC ↗ |
| 16 | T. Rowe Price ✦ | 8.95M | +8.4% | $799.09M | 0.1% | ▲ Add | 3 | SEC ↗ |
| 17 | T. Rowe Price ✦ | 8.95M | +8.4% | $799.09M | 0.1% | ▲ Add | 3 | SEC ↗ |
| 18 | Marshall Wace ✦ | 8.87M | +7.6% | $791.90M | 1.0% | ▲ Add | 3 | SEC ↗ |
| 19 | Marshall Wace ✦ | 8.87M | +7.6% | $791.90M | 1.0% | ▲ Add | 3 | SEC ↗ |
| 20 | Marshall Wace ✦ | 8.87M | +7.6% | $791.90M | 1.0% | ▲ Add | 3 | SEC ↗ |
| 21 | Marshall Wace ✦ | 8.87M | +7.6% | $791.90M | 1.0% | ▲ Add | 3 | SEC ↗ |
| 22 | Millennium Management ✦ | 9.13M | -19.6% | $770.72M | 0.7% | ▼ Trim | 3 | SEC ↗ |
| 23 | Fisher Asset Management ✦ | 5.80M | +21.6% | $518.14M | 0.2% | ▲ Add | 3 | SEC ↗ |
| 24 | Arrowstreet Capital ✦ | 5.59M | +9.5% | $499.47M | 0.4% | ▲ Add | 3 | SEC ↗ |
| 25 | Citadel Advisors ✦ | 4.93M | -49.6% | $440.48M | 0.4% | ▼ Trim | 3 | SEC ↗ |
| 26 | Citadel Advisors ✦ | 4.93M | -49.6% | $440.48M | 0.4% | ▼ Trim | 3 | SEC ↗ |
| 27 | Adage Capital Partners ✦ | 2.62M | +0.7% | $234.05M | 0.4% | ▲ Add | 3 | SEC ↗ |
| 28 | Point72 Asset Management ✦ | 2.25M | -33.6% | $200.59M | 0.6% | ▼ Trim | 3 | SEC ↗ |
| 29 | Viking Global Investors ✦ | 2.17M | +124.6% | $194.02M | 0.6% | ▲ Add | 2 | SEC ↗ |
| 30 | AQR Capital Management ✦ | 911.94K | -5.5% | $81.45M | 0.1% | ▼ Trim | 3 | SEC ↗ |
| 31 | AQR Capital Management ✦ | 911.94K | -5.5% | $81.45M | 0.1% | ▼ Trim | 3 | SEC ↗ |
| 32 | AQR Capital Management ✦ | 911.94K | -5.5% | $81.45M | 0.1% | ▼ Trim | 3 | SEC ↗ |
| 33 | AQR Capital Management ✦ | 911.94K | -5.5% | $81.45M | 0.1% | ▼ Trim | 3 | SEC ↗ |
| 34 | AQR Capital Management ✦ | 911.94K | -5.5% | $81.45M | 0.1% | ▼ Trim | 3 | SEC ↗ |
| 35 | D. E. Shaw & Co. ✦ | 763.50K | -56.5% | $68.20M | 0.1% | ▼ Trim | 3 | SEC ↗ |
| 36 | D. E. Shaw & Co. ✦ | 763.50K | -56.5% | $68.20M | 0.1% | ▼ Trim | 3 | SEC ↗ |
| 37 | Two Sigma Investments ✦ | 741.85K | -35.7% | $66.26M | 0.2% | ▼ Trim | 3 | SEC ↗ |
| 38 | Bridgewater Associates ✦ | 162.91K | -54.3% | $14.55M | 0.1% | ▼ Trim | 3 | SEC ↗ |
| 39 | GAMCO Investors ✦ | 129.32K | +7.5% | $11.55M | 0.1% | ▲ Add | 3 | SEC ↗ |
| 40 | Soros Fund Management ✦ | 100.00K | -71.4% | $8.93M | 0.2% | ▼ Trim | 3 | SEC ↗ |
| 41 | Dodge & Cox ✦ | 94.80K | -0.5% | $8.47M | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 42 | Gotham Asset Management ✦ | 11.43K | +43.7% | $1.02M | 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
| No new tracked buyers this quarter. |
Exited
| Renaissance Technologies | $21.62M | 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: Q4 2024 ·
Methodology ·
Get this via the API