BOSTON SCIENTIFIC CORP · CUSIP 101137107 · CIK 1318757
As of 2026-06-30, MARSHALL WACE, LLP reported 2.41M BSX (shares), valued at $103.04M, or 0.09% of its reported non-derivative portfolio. Filed 2026-08-13.
Verify history & sources →Shares decreased 33.14%; reported value decreased 54.53%, and weight changed -0.15 pp. Weight depends on both the security valuation and total portfolio value, not trade proceeds.
Left: % · Right: Shares · Independently scaled axes
Exact data and methodology
Axes scale independently; a crossing does not mean equal values. Weight uses each quarter's total reported non-derivative value. Same CUSIP; missing quarters are gaps, not zero. Revised history may include later disclosures.
| Quarter | Weight | Quantity | Source |
|---|---|---|---|
| Q2 2026 | 0.09% | 2,414,223 | SEC filing ↗Filed Aug 13, 2026 |
| Q1 2026 | 0.24% | 3,611,020 | SEC filing ↗Filed May 15, 2026 |
| Q4 2025 | 0.27% | 2,957,237 | SEC filing ↗Filed Feb 13, 2026 |
| Q3 2025 | 1.05% | 9,799,040 | SEC filing ↗Filed Nov 13, 2025 |
| Q2 2025 | 0.96% | 7,497,657 | SEC filing ↗Filed Aug 13, 2025 |
| Q1 2025 | 1.07% | 7,948,162 | SEC filing ↗Filed May 15, 2025 |
| Q4 2024 | 0.99% | 8,865,843 | SEC filing ↗Filed Feb 13, 2025 |
| Q3 2024 | 0.90% | 8,240,519 | SEC filing ↗Filed Nov 14, 2024 |
| Q2 2024 | 0.73% | 6,720,480 | SEC filing ↗Filed Aug 14, 2024 |
| Q1 2024 | 0.35% | 3,112,322 | SEC filing ↗Filed May 15, 2024 |
| Q4 2023 | 0.18% | 1,617,301 | SEC filing ↗Filed Feb 14, 2024 |
| Q3 2023 | 0.43% | 3,802,858 | SEC filing ↗Filed Nov 14, 2023 |
History & evidence by quarter
| Quarter | Weight | Quantity | Value | Change explained | Source |
|---|---|---|---|---|---|
| Q3 2023 | 0.43% | 3,802,858 | $200.79M | The prior quarter is outside the free window. Sign in for the comparison. | SEC filing ↗ Filed Nov 14, 2023 |
| Q4 2023 | 0.18% | 1,617,301 | $93.50M | Shares decreased 57.47%; reported value decreased 53.44%, and weight changed -0.25 pp. Weight depends on both the security valuation and total portfolio value, not trade proceeds. | SEC filing ↗ Filed Feb 14, 2024 |
| Q1 2024 | 0.35% | 3,112,322 | $213.16M | Shares increased 92.44%; reported value increased 127.99%, and weight changed +0.17 pp. Weight depends on both the security valuation and total portfolio value, not trade proceeds. | SEC filing ↗ Filed May 15, 2024 |
| Q2 2024 | 0.73% | 6,720,480 | $517.54M | Shares increased 115.93%; reported value increased 142.79%, and weight changed +0.38 pp. Weight depends on both the security valuation and total portfolio value, not trade proceeds. | SEC filing ↗ Filed Aug 14, 2024 |
| Q3 2024 | 0.90% | 8,240,519 | $690.56M | Shares increased 22.62%; reported value increased 33.43%, and weight changed +0.17 pp. Weight depends on both the security valuation and total portfolio value, not trade proceeds. | SEC filing ↗ Filed Nov 14, 2024 |
| Q4 2024 | 0.99% | 8,865,843 | $791.90M | Shares increased 7.59%; reported value increased 14.68%, and weight changed +0.09 pp. Weight depends on both the security valuation and total portfolio value, not trade proceeds. | SEC filing ↗ Filed Feb 13, 2025 |
| Q1 2025 | 1.07% | 7,948,162 | $801.81M | Shares decreased 10.35%; reported value increased 1.25%, and weight changed +0.08 pp. Weight depends on both the security valuation and total portfolio value, not trade proceeds. | SEC filing ↗ Filed May 15, 2025 |
| Q2 2025 | 0.96% | 7,497,657 | $805.32M | Shares decreased 5.67%; reported value increased 0.44%, and weight changed -0.11 pp. Weight depends on both the security valuation and total portfolio value, not trade proceeds. | SEC filing ↗ Filed Aug 13, 2025 |
| Q3 2025 | 1.05% | 9,799,040 | $956.68M | Shares increased 30.69%; reported value increased 18.79%, and weight changed +0.09 pp. Weight depends on both the security valuation and total portfolio value, not trade proceeds. | SEC filing ↗ Filed Nov 13, 2025 |
| Q4 2025 | 0.27% | 2,957,237 | $281.97M | Shares decreased 69.82%; reported value decreased 70.53%, and weight changed -0.78 pp. Weight depends on both the security valuation and total portfolio value, not trade proceeds. | SEC filing ↗ Filed Feb 13, 2026 |
| Q1 2026 | 0.24% | 3,611,020 | $226.59M | Shares increased 22.11%; reported value decreased 19.64%, and weight changed -0.03 pp. Weight depends on both the security valuation and total portfolio value, not trade proceeds. | SEC filing ↗ Filed May 15, 2026 |
| Q2 2026 | 0.09% | 2,414,223 | $103.04M | Shares decreased 33.14%; reported value decreased 54.53%, and weight changed -0.15 pp. Weight depends on both the security valuation and total portfolio value, not trade proceeds. | SEC filing ↗ Filed Aug 13, 2026 |
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Figures are as reported to the SEC and merged with later amendments where Akkru could match them. Preview limits apply to what is listed, not to the totals, which come from the complete reported data. Nothing is zero-filled: a missing quarter or month is shown as missing.