Boston Scientific Corporation
DE ˙ XTRA ˙ FR0010424135
41,05 € ↓ -0,25 (-0,61%)
2026-06-04
AKTIENPREIS
SecurityDE:BSX / Boston Scientific Corporation
InstitutionBanco Santander, S.A.
Latest Disclosed Ownership304,049 shares
Latest Disclosed Value $ 19,079,075
Banco Santander, S.A. reports 452.24% increase in ownership of BSX / Boston Scientific Corporation

On May 8, 2026 - Banco Santander, S.A. filed a 13F-HR form disclosing ownership of 304,049 shares of Boston Scientific Corporation (DE:BSX) valued at $16,357,836 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 13, 2026 disclosing 55,057 shares of Boston Scientific Corporation. This represents a change in shares of 452.24% during the quarter. The current value of the position is $12,481,211 USD.

Institutional Ownership: 13F and NPORT Filings

The Security and Class in the table below are shown exactly as filed by the investor. We do our best to track continuity of investments through acquisitions, and this will be reflected in the table as changes in names. In addition to descriptive data, performance of the investment is shown over time. To calculate quarterly performance, we first calculate cost basis of the shares purchased during the quarter, then use that to calculate gross profit. Quarterly return is Gross Profit / Starting Portfolio value.

Note that cost basis is calculated and stored in thousands, so small quarterly changes in shares frequently result in a cost basis of zero.

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Disclosed Equity Positions (from 13F/NPORT Filings)
File
Date
Effective
Date
Form Security Class ID Avg Price
Paid (Est)
Reported
Shares
ΔShares ΔShares
(%)
Reported
Value
(x1000)
ΔValue
(%)
Alloc
(%)
ΔAlloc ΔAlloc (%) Cost Basis
(x1000)
Unrealized
Gain/Loss
(x1000)
2026-05-08 2026-03-31 13F BOSTON SCIENTIFIC COM 101137107 304,049 248,992 452.24 19,079 263.48 0.1538
2026-02-13 2025-12-31 13F BOSTON SCIENTIFIC COM 101137107 55,057 -2,653 -4.60 5,250 -6.83 0.0393
2025-11-12 2025-09-30 13F BOSTON SCIENTIFIC COM 101137107 57,710 -4,067 -6.58 5,634 -15.09 0.0500
2025-08-01 2025-06-30 13F BOSTON SCIENTIFIC COM 101137107 61,777 29,718 92.70 6,635 105.16 0.0630
2025-05-09 2025-03-31 13F BOSTON SCIENTIFIC COM 101137107 32,059 15,356 91.94 3,234 116.90 0.0357
2025-02-07 2024-12-31 13F BOSTON SCIENTIFIC COM 101137107 16,703 -11,421 -40.61 1,492 -36.71 0.0179
2024-11-12 2024-09-30 13F BOSTON SCIENTIFIC COM 101137107 28,124 -463 -1.62 2,357 7.04 0.0278
2024-07-29 2024-06-30 13F BOSTON SCIENTIFIC COM 101137107 28,587 -714 -2.44 2,201 9.72 0.0273
2024-05-10 2024-03-31 13F BOSTON SCIENTIFIC COM 101137107 29,301 46 0.16 2,007 18.63 0.0242
2024-02-09 2023-12-31 13F BOSTON SCIENTIFIC COM 101137107 29,255 2,525 9.45 1,691 19.84 0.0200
2023-11-08 2023-09-30 13F BOSTON SCIENTIFIC COM 101137107 26,730 -183,602 -87.29 1,411 -87.60 0.0200
2023-08-14 2023-06-30 13F BOSTON SCIENTIFIC COM 101137107 210,332 186,641 787.81 11,377 860.00 0.1492
2023-05-10 2023-03-31 13F BOSTON SCIENTIFIC COM 101137107 23,691 10,181 75.36 1,185 89.60 0.0177
2023-02-13 2022-12-31 13F BOSTON SCIENTIFIC COM 101137107 13,510 -921 -6.38 625 11.81 0.0094
2022-11-08 2022-09-30 13F BOSTON SCIENTIFIC COM 101137107 14,431 -191 -1.31 559 2.57 0.0075
2022-07-28 2022-06-30 13F BOSTON SCIENTIFIC COM 101137107 14,622 -11,919 -44.91 545 -53.66 0.0073
2022-05-09 2022-03-31 13F BOSTON SCIENTIFIC COM 101137107 26,541 -23,341 -46.79 1,176 -44.50 0.0126
2022-02-09 2021-12-31 13F BOSTON SCIENTIFIC COM 101137107 49,882 31,240 167.58 2,119 161.93 0.0114
2021-11-08 2021-09-30 13F BOSTON SCIENTIFIC COM 101137107 18,642 1,420 8.25 809 9.92 0.0043
2021-07-29 2021-06-30 13F BOSTON SCIENTIFIC COM 101137107 17,222 -878 -4.85 736 5.14 0.0041
2021-05-10 2021-03-31 13F BOSTON SCIENTIFIC COM 101137107 18,100 -3,822 -17.43 700 -11.17 0.0049
2021-02-12 2020-12-31 13F BOSTON SCIENTIFIC COM 101137107 21,922 1,718 8.50 788 2.07 0.0056
2020-11-09 2020-09-30 13F BOSTON SCIENTIFIC COM 101137107 20,204 -4,198 -17.20 772 -9.92 0.0102
2020-08-05 2020-06-30 13F BOSTON SCIENTIFIC COM 101137107 24,402 -1,447 -5.60 857 1.54 0.0111
2020-05-11 2020-03-31 13F BOSTON SCIENTIFIC COM 101137107 25,849 -5,432 -17.37 844 -40.31 0.0097
2020-02-07 2019-12-31 13F BOSTON SCIENTIFIC COM 101137107 31,281 -1,380 -4.23 1,414 6.40 0.0131
2019-11-06 2019-09-30 13F BOSTON SCIENTIFIC COM 101137107 32,661 -2,263 -6.48 1,329 -11.46 0.0129
2019-08-07 2019-06-30 13F BOSTON SCIENTIFIC COM 101137107 34,924 -254,831 -87.95 1,501 -86.50 0.0152
2019-05-13 2019-03-31 13F BOSTON SCIENTIFIC COM 101137107 289,755 117,972 68.68 11,121 83.18 0.1255
2019-02-12 2018-12-31 13F BOSTON SCIENTIFIC COM 101137107 171,783 -2,489 -1.43 6,071 -9.51 0.0767
2018-11-13 2018-09-30 13F BOSTON SCIENTIFIC COM 101137107 174,272 -34,640 -16.58 6,709 -1.80 0.0766
2018-08-14 2018-06-30 13F BOSTON SCIENTIFIC COM 101137107 208,912 -94,073 -31.05 6,832 -17.47 0.0796
2018-05-14 2018-03-31 13F BOSTON SCIENTIFIC COM 101137107 302,985 -122,610 -28.81 8,278 -21.54 0.0968
2018-02-14 2017-12-31 13F BOSTON SCIENTIFIC COM 101137107 425,595 373,605 718.61 10,550 597.29 0.1511
2017-11-13 2017-09-30 13F BOSTON SCIENTIFIC COM 101137107 51,990 -3,635 -6.53 1,513 -1.94 0.0249
2017-08-11 2017-06-30 13F BOSTON SCIENTIFIC COM 101137107 55,625 66 0.12 1,543 11.89 0.0303
2017-05-12 2017-03-31 13F BOSTON SCIENTIFIC COM 101137107 55,559 -1,470 -2.58 1,379 11.93 0.0356
2017-02-17 2016-12-31 13F/A-1 BOSTON SCIENTIFIC COM 101137107 57,029 57,029 1,232 0.0325
2017-02-14 2016-12-31 13F BOSTON SCIENTIFIC COM 101137107 57,029 1,232
Legend
Shares
The total number of shares held by the institution at the end of the reporting period (the effective date). This is provided in the filing.
Value
The total value of the shares as of the effective date. This is provided in the filing.
Avg. Share Price
The weighted average share price of the shares held by the institution. We use FIFO accounting to determine this price
Class
This is the security class as indicated by the filer. There are a variety of values for this field. Common values include "EC" = equity common, "EP" - equity preferred
Allocation (%)
The percent of the institution's portfolio that this position represents. This is provided in NPORT filings. For 13F filings, we calculate it.
Change in Allocation
The change in allocation from the prior reporting period. This is calculated as current allocation - prior allocation.
Change in Allocation (%)
The percent change in allocation from the prior reporting period. This is calculated as (current allocation - prior allocation) / prior allocation.
Cost Basis
The total cost of the shares held. This is calculated as reported shares * avg. share price
Unrealized Gain/Loss
This is the market value of the position as of the effective date minus the cost basis.